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Vol-3-SS-Part-1 3626

1. E DAC Station Controller Industrial MTBF Mean time between Failures Hrs MTTR Mean time to repair Hrs ao A SEIT Compile UNE Donee Ethernet switch as redundant hot standby Hot standby take over time Seconds Dual Wide Monitor each HMI over 25 Yes Single wide screen Yes Annunciator for Station PC system software 16 Windows Number of years of proven field experience of 5 Yrs offered software Operating System Windows 000 All standard picture as per spec included in HMI Yes _ Process Status Display amp Command Procedures Yes Event processing as per spec Ves Alarm processing as per spec Yes Reports as per spec Ves Trend Display as spec Yes Graphical fault information receiving function Yes Disturbance amp Fault recording analysis with Yes graphical format User Authority levels as per spec Ves System supervision amp monitoring as per spec Vas Automatic sequence control as per spec Yes DD met E Gateway to National Load dispatch Caner offered unit Insulation tests Fast disturbance tests Industrial environment Industrial grade hardware with no moving parts based gateway is not accepted Design life of offered equipment Redundant communication channel Redundant CPU Redundant DC DC Supply MTBF Mean time between Failures MTTR Mean time to r
2. of control _ load local _ remote and _ supervisory electrical and hand operation 17 compensation 218 Whether automatic control required and referenced Yes 110 TERME S TERTII ME O M 19 Whether separate remote control panel required Yes 20 DC supply _ Nominal M 110 _ Maximum float voltage 1 11 1 V 1252 21 lt Whether provision for supervisory control required Yes __ including AVR setting 1 0 1 111 22 Whether marshalling kiosk required Tank side 2 23 _ Number of transformers for which automatic control is 2 and to be suitable provision for 7 24 _ TERMINATIONS Bushing insulators or cable boxes on line and neutral terminals i HV line Oil Air Bushings ii Neutral Oil Air Bushings iii LV line Bushing _ BCT PARTICULARS i HV 132kV Side Core 1 amp 2 300 1 CI 5P20 30VA Ratio burden and accuracy class shall be matched with WTI meter 71200 1 CI 5P20 26 Pollution category of bushing insulators 25 mm kV of system rated _ highest 27 COOLING i Number of cooler banks required _i To suit transformer transformer ii Rating of each cooler bank as percentage of design total loss at CMR 96 ji 10096 iii Standby cooling requireme
3. POWER GRID COMPANY BANGLADESH LIMITED BIDDING DOCUMENT FOR PACKAGE 1 DESIGN SUPPLY ERECTION TESTING amp COMMISSIONING OF 132KV TRANSMISSION LINES AND SUBSTATIONS ON TURNKEY BASIS Lot 2 Substation SCHEDULE A INTRODUCTION amp PREAMBLE TO THE PRICE amp TECHNICAL SCHEDULES Schedule A Requirements POWER GRID COMPANY OF BANGLADESH LIMITED BIDDING DOCUMENT FOR PACKAGE 1 DESIGN SUPPLY ERECTION TESTING amp COMMISSIONING OF 132KV TRANSMISSION LINES AND SUBSTATIONS ON TURNKEY BASIS Lot 2 Substation CONTRACT NO PSEEIP ADB PGCB SS SCHEDULE A INTRODUCTION amp PREAMBLE TO THE PRICE amp TECHNICAL SCHEDULES BRIEF DESCRIPTION OF THE WORKS The bidder shall be deemed to have visited site inspected gathered data and verified details of the as built system in order to design supply and interface their new equipment All necessary materials adjustments dismantling remedial and tiding up work in order to complete the work specified shall be included in the contract price The contractor is responsible for ensuring that all and or and any item s of work required for the safe efficient and satisfactory completion and functioning of the works are included in the Bid Price whether they be described in the specification or not In case of extension amp renovation works all required as built drawings may not be available for the existing plants amp equipment which are required to be modified reno
4. organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 60 800 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 412 One 1 lot of complete design supply construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads cable trenches septic tank soak way surfacing gravel laying drainage security fences boundary wall sentry post guard house car port etc 413 One 1 lot of complete design supply and construction of all civil items and facilities required for the two storied main control building including cable basement 4 Lighting Small Power Air Conditioning and Ventilation 4J1 One 1 lot of complete design supply installation and commissioning of equipment to provide lighting LV power supply air conditioning system ventilation system and emergency DC lighting for the main control building 4J2 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and in
5. 1B4 Twelve 12 nos of single phase 2 core 36kV 25kA 1sec 50Hz 650kVp BIL voltage transformers 1B5 Twelve 12 nos of 30kV rated voltage 10kA nominal discharge current 50Hz Heavy duty station class single phase surge arresters 1B6 One 1 lot of flexible conductors for busbar jackbus jumper equipment connections ACSR Twin Finch 1113MCM including all necessary clamps amp connectors required for completing 33kV busbar and switchgear connection 1B7 One 1 lot of insulators and fittings including all necessary accessories required to complete 33kV switchyard 1B8 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required for completing 33kV switchyard Schedule A Requirements 1C Power Transformers amp Earthing Auxiliary Transformers 1C1 Two 2 sets of 132 33kV 25 41 MVA three phase outdoor type power transformers with associated bushing CTs including all necessary connections insulators amp fittings 1C2 Two 2 sets 33 0 415kV 200kVA three phase outdoor type station auxiliary transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 1D Control Protection Substation Automation amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawing
6. c One 1 set of DC distribution board The DC distribution board shall be with 50 overall spare switches for future use d Two 2 sets of online UPS 3kVA for Substation Automation system panels 5G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supply The existing Batteries Chargers and DC Distribution panels are to be replaced by the new sets and handed over to the store with all recovered materials The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three pahse 50Hz 415 V AC c One 1 lot of DC distribution board The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 5096 overall spare switches for future use 5H LVAC Distribution 5H1 One 1 lot of modification of existing LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 5l Civil Works Buildin
7. Land Development Civil Works Building and Foundation Complete design supply and construction of all civil items required for land development Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads outdoor lighting system cable trenches septic tank earth filling surfacing drainage security fences guard house earthing amp lightning protection switchyard lighting etc Complete design supply and construction of all civil items including all necessary architecture amp structural requirements cable trays fittings and flooring amp finishes air conditioning and lighting for a new two storied main control room building SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 101 104 protocol All
8. Yes Upto32 2 Yes 0 Yes Yes Yes Yes 3 0 Main Features Senes Serin _ Ring Back _ _ Call Forwarding park waiting pick Up a Hands Free operation _ Em Account Code Automatic Route Selection 2 Display Speed Calling Stored number redial ES yso Yes 3 10 Call Transfer Direct Outward Dialing 3 11 Hunt Group Music on Hold Yes Yes 3 12 Night Service Off hook Alarm Redial Yes 0 4 1 p TT of f configuration tc tool 43 For local remote Operation _ 50 Ambient Conditions lt Re _Yes yes Ethernet IP or 7 Yes 0 Schedule A Requirements 5 1 Storage ETS 300 019 1 1 class 1 2 26 55 class 1 2_ 5 2 Transport ETS 300 019 1 2 class 22 C hum 25 70 class 2 2 5 3 Operation ETS 300 019 1 3 class 3 UOT hum 5 45 class APPENDIX A10 1 SCHEDULE OF TECHNICAL REQUIREMENTS OF INSULATOR 2 Lightning impulse withstand positive and 650 170 Regative kVp Dry and wet 4 min power freq withstand voltage kVrms 1 70 Wet and Dry P ERE APPENDIX 10 2 SCHEDULE OF TECHNICAL REQUIREMENTS OF INSULATOR STRING pP MM TM M HMM Dm DA EE EA EAE AE AD TAAN TOE NOAE IA AAS N 4 Creepage distance of in
9. _i Double side break di Single Center break di Single break Series wma 1 Rated voltage 145 kV 4 Rated short duration power frequency withstand voltage 1 Toearth 275 kV rms Across isolating distance 315 kV rms 5 Rated lightning impulse withstand voltage To earth 650 kV peak Across isolating distance 750 6 Rated normal current Bus coupler 2000 A Transformer bay 1250 Line 1250 A aoe ea nor orca unen an BOA _Creepage distance of insulator 25 mm kV 10 Operating mechanism of isolator motor operated Earthing switch manual operated Making Min 6 Breaking Min 6 Middle position Min 1 Noriber of contacts tor canting ewith Making Min 6 Breaking Min 6 Middle position Min 1 13 Radio interference level for 0 5 MHz to 2 MHz 500 micro V 8t 92 kV rms 9 2 36kV Class Isolators 222 2 212 Type Outdoor Single vertical break Schedule A Requirements INEST ee 62271 1027 ray voltage ud 4277 Rated E Rated lightning Pu withstand A E mS E E Rated MNA p 7 Rated S m ee 2 28 0 Making Breaking Min 6 6 6 instrument Transformers 8 6 1
10. jumper equipment connections ACSR Single Finch 1113 MCM including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection The existing rigid aluminium tube conductor flexible conductor clamps amp connectors with all associated accessories are to be dismantled and handing over to store 6A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 145kV switchyard 6A9 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard Some of existing gantry column beam amp equipment structure may be reused and the remaining are to be dismantled and handing over to store 6A10 1 Relocation of existing one 1 set of 132 33kV 50 75MVA three phase transformer with all associated accessories 6A10 2 Relocation of existing four 4 sets of 145kV live tank type SF6 gas circuit breakers with all associated accessories two sets for two existing line bays one set for one existing Transformer bay and one set for one existing bus tie bay 6A10 3 Relocation of existing fifteen 15 nos Single phase 145kV current transformer all associated accessories 6A10 4 Relocation of existing twelve 12 nos Single phase 145kV voltage transformer with wave trap amp all associated accessories six nos for two existing line bays and
11. 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 3D1 Control Protection Metering amp Substation Automation System including event recording function for One 1 set of overhead line circuits to Sylhet Fenchuganj T off Schedule A Requirements 3D2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of 132 33 kV power transformer circuits including transformer tap changer control 3D3 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit 3D4 Deleted 3D5 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for One 1 132kV line and two 2 transformer feeder For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of 3D6 Control Protection Metering amp Substation Automation System including event recording function for two sets of power transformer circuits 3D7 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import
12. amp Earthing Auxiliary Transformers 6C1 One 1 set of 132 33kV 50 75 MVA ONAN ONAF three phase outdoor type power transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 6C2 One 1 set 33 0 415kV 200kVA three phase outdoor type station auxiliary transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 6D Control Protection Substation Automation amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 6D1 1 Control Protection Metering amp Substation Automation System including event recording function for four 4 sets of overhead line circuits for four new line bays 6D1 2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of existing overhead line circuits The existing Schedule A Requirements panels of two line bays shall be replaced by new sets and the recovered panels with all associated materials are to be handed over to the store 6D2 1 Control Protection Metering amp Substation Automation System including event recording function and transformer tap changer control for one 1 set of new transformer bay 6D2 2 Control Protection Metering amp Substation Automation System including event recording function a
13. amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 2 132 kV line and two 2 transformer feeder For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration Schedule A Requirements 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of 2D6 Control Protection Metering amp Substation Automation System including event recording function for two sets of power transformer circuits 207 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two transformer feeder circuits Power X former l amp Il For each feeder minimum two meters main amp check The scope of works also includes supply of software s of the above energy meters for future re configuration 2E Multicore Cables 2E1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The overall substation cable routing and core schedules shall also be provided 2F Earthing and Lightning Protection 2F1 One 1 lot of design
14. installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement 6K Fibre Optic Multiplexer Equipment for Communication and Protection 6K1 The equipment to be supplied installed and commissioned shall be as shown on bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores 21 relay carrier signal main and back up SA 46 Schedule A Requirements SCADA data from switchgear and control system Digital Telephone Exchange amp hot line telephone system 6K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 6L SCADA system for Telecontrol and Telemetering 6L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing Nati
15. of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 3A6 Three 3 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections 1 lot of flexible conductors for busbar ACSR Twin Fince 1113 MCM amp jackbus jumper equipment connections ACSR Single Grosbeak 636 including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection 3A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 132kV switchyard Schedule A Requirements 3A9 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 132kV switchyard 3B 33kV Air Insulated Switches and Connection for Auxiliary Transformers The 33kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 3B1 Two 2 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL outdoor Vacuum Circuit Breakers VCB with spring stored energy operating mechanism 3B2 Seven 7 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL single vertical break po
16. one 1 new bustie bay and replacement of existing two 2 line bays and existing two 2 132 33kV transformer bays Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Replacement of existing DCDB system by a complete new set of 110V amp 48V DC system and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set Civil Works Building and Foundation Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations cable trenches surfacing drainage outdoor lighting system security fences including earthing amp lightning protection switchyard lighting etc to accommodate new bays and renovation of existing bays The existing control room building shall be renovated internally with all civil items and facilities as required including placing of new floor tiles SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing Schedule A Requirements National Load Despatch Center
17. transfer bus arrangement and consists of four 4 line bays three 3 transformer bays and one 1 bus tie bay The existing bus shall be extended to accommodate two overhead line bays 132kV Air Insulated Switchgears 15 132kV AIS switchyard for extension of new two 2 132kV overhead line bays in order to connect 132kV overhead line Narshindi 1 amp 2 Control Protection amp Metering Associated control metering protection equipment synchronizing scheme for new two 2 132kV overhead line bays Fibre Optic Multiplexer Equipment for Communication and Protection Extension of existing Fibre Optic Multiplexer and communication equipment for protection amp communication The existing Fiber optic multiplexer and communication equipment is AREVA France made MSE 5001 type DC and LVAC System Extension of existing DCDB amp LVAC system by necessary materials required for the plant being installed Civil Works Building and Foundation Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads outdoor lighting system cable trenches surfacing drainage security fences earthing amp lightning protection etc to accommodate new bays SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp
18. 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 1A6 Six 6 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections 1A7 One 1 lot of flexible conductors for busbar ACSR Twin Finch 1113MCM amp jackbus jumper equipment connections ACSR Single Grosbeak 636 MCM including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection 1A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 132kV switchyard 1A9 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 132kV switchyard 1B 33kV Air Insulated Switches and Connection for Auxiliary Transformers The 33kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 1B1 Two 2 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL outdoor Vacuum Circuit Breakers VCB with spring stored energy operating mechanism 1B2 Seven 7 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL single vertical break post type disconnectors 1B3 Six 6 nos of single phase 3 core multi ratio 36kV 25kA 1sec 50Hz 170kVp BIL post type current transformer
19. MCBs cable connectors etc required for the plant being installed 9H LVAC Distribution 9H1 One 1 lot of modification of existing LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 9l Land Development Civil Works Building and Foundation 911 Complete earth filling by imported carried earth free from foreign solid particles organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 2 500 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 912 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads cable trenches surfacing gravel laying drainage security fences etc 9 Lighting Small Power 9J1 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement for the plant amp equ
20. NLDC at Rampura for integration of four 4 new 132kV line bays All required electrical signals shall be transmitted to the NLDC through the Remote terminal units All HV breakers motorized disconnectors etc shall be controlled form NLDC through the Remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made MiCOM C264 type Mandatory Spares Maintenance tools amp Test Equipment Supply of complete mandatory spare for switchgear control equipment protection relays meters maintenance tools amp test equipment The materials shall have to be handed over to the designated store as per instruction of the Engineer 6 Extension amp Renovation of existing 132 33kV AIS Substation at Narshindi Narshindi is situated about 60km away from the capital city Dhaka The configuration of the existing 132kV busbar is single bus arrangement and consists of two 2 line bays and one 1 transformer bay and a sectionalizer breaker bay The existing single bus arrangement is to be converted to double bus configuration to accommodate total six 6 line bays two 2 transformer bays amp one 1 bus tie bay 132kV Air Insulated Switchgears 15 132kV AIS switchyard for extension of new four 4 132kV overhead line bays in order to connect 132kV overhead line Bhulta Gorashal 2 Brahamanbaria 1 amp 2 new on
21. are comprising of 9D 1 Control Protection Metering for two 2 sets of overhead line circuits for two new line bays 9D2 Tariff metering to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 2 132kV line For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 9E Multicore Cables 9 1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The cable routing and core schedules shall also be provided 9F Earthing and Lightning Protection 9F1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps for the portion to be extended under this turnkey bid and to suit the substation overall arrangement 9G Battery Charger amp DC Distribution 9G1 One 1 set NiCad 250Ahr 110V DC Battery bank and one 1 set of battery charger complete 75A rating for 110V DC to be supplied installed commissioned and coupling with existing DC system Schedule A Requirements 9G2 One 1 lot of modification of existing DCDB system by necessary
22. designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 4A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 4A1 1 One 1 set of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism or spring hydraulic combination mechanism for bus coupler 4A1 2 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transformer bays 4A1 3 One 1 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transsmission line bays 4A2 1 Two 2 sets of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch for bus coupler 4A2 2 Three 3 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 4A2 3 Six 6 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors withou
23. kV busbars 14 Impedance voltage at 75 C 75 MVA _ between windings on HV Base at Nominal tap 96 10 14 at maximum tap 96 10 14 _at minimum tap E 10 14 m c E C M 16 1 Total range of variation of on load transformation ratio on HV side as sl 4 Ratio 96 110 pe SIZE OF SHOPS 9 1250224 16 2 of control load local remote and supervisory electrical and hand operation Line drop compensation OS Whether automatic control required and referenced Yes 110V ae ee 902 19 Whether separate remote control panel required Yes 0 220 DC supply Nominal 110 21 Whether provision for supervisory control required Yes Neluding AVR setting tt fate 22 _ Whether marshalling kiosk required _ Tank side 23 Number of transformers for which automatic control is 22 and to be suitable provision for E AD MAD DEDE DD RE MARE 24 TERMINATIONS Bushing insulators or cable boxes on line and neutral terminals i HV line Bushings ii Neutral Bushings iii LV line _ Oil Air Bushing 225 BCT PARTICULARS HV 132kV Side Core 1 amp 2 400 1 CI 5P20 30VA Ratio burden and accuracy class shall be matched with WTI meter 1600 800 1 CI 5P20
24. necessary modification works in the software of master station of NLDC are to be carried out Schedule A Requirements Mandatory Spares Maintenance tools amp Test Equipment Supply of complete mandatory spare and spare parts of transformer switchgear control equipment protection relays meters maintenance tools amp test equipment The materials shall have to be handed over to the designated store as per instruction of the Engineer 5 Extension amp Renovation of existing 132 33kV AIS Substation at Chandroghona Chandroghona is situated about 50km away from the main sea port Chittagong The configuration of the existing 132kV busbar is ring bus arrangement and consists of two 2 line bays and two 2 transformer bays The existing ring bus arrangement is to be converted to double bus configuration to accommodate total six 6 line bays two 2 transformer bays amp one 1 bus tie bay 132kV Air Insulated Switchgears AIS 132kV AIS switchyard for extension of new four 4 132kV overhead line bays in order to connect 132kV overhead line Rangamati 1 amp 2 Madunaghat 1 Kaptai 1 one 1 new bustie bay and renovation of existing two 2 line bays Madunaghat 2 Kaptai 2 amp existing two 2 132 33kV transformer bays Control Protection Substation Automation amp Metering Associated control metering protection equipment synchronizing scheme and substation automation system for new four 4 132kV overhead line bays
25. north east region and about 280km away from the capital city Dhaka The configuration of the 132kV busbar shall be double busbar scheme Switchyard layout shall be designed such as to accommodate double bus U type configuration 132kV Air Insulated Switchgears 15 132kV AIS switchyard for one 1 132kV overhead line bays in order to connect one 132kV single circuit overhead line tee off of Sylhet Fenchuganj line 1 two 2 132 33kV transformer bays for two sets of 132 33kV 25 41MVA three phase transformers one 1 bus coupler bay Space provision with busbar gantry structure amp switchyard finished surface without equipment is to be kept for extension of two 2 future 132kV line bays amp one 1 future transformer bay 132kV Side 33kV Air Insulated Switches and Connection 33kV AIS switchyard single bus configuration and switches for two 2 LV side of 132 33kV power transformer bays and two 2 33 415kV aux transformer bays in order to facilitate station power supply 132 33kV three phase power transformer Two 2 sets of 25 41 132 33kV three phase power transformers 33 0 415kV auxiliary transformer Two 2 sets of 33 0 415kV 200kVA outdoor type auxiliary transformers to supply the substation auxiliary loads Control Protection Substation Automation amp Metering Associated control metering protection equipment synchronizing scheme and substation automation system for complete subst
26. not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75 rating c One 1 set of DC distribution board The DC distribution board shall be with 50 overall spare switches for future use d Two 2 sets of online UPS 3kVA for Substation Automation system panels 1G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supply The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three pahse 50Hz 415 V AC c One 1 lot of DC distribution board The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 5096 overall spare switches for future use 1H LVAC Distribution 1H1 One 1 lot of switchboard for substation services to be supplied installed and commissioned to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid Schedule A Requirements 1H2 One 1 lot of Tariff metering panel to accommodate
27. per IEC 309 to be installed cabled and connected adjacent to the auxiliary transformers 6l Land Development Civil Works Building and Foundation 611 Complete earth filling by imported carried earth free from foreign solid particles organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 16 500 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 612 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads cable trenches surfacing gravel laying drainage security fences etc 613 One 1 lot of complete design supply and construction of all civil items and facilities required for internal renovation of existing control room building including re placing of floor tiles 6J Lighting Small Power Air Conditioning and Ventilation 6J1 One 1 lot of complete design supply installation and commissioning of equipment to renovate the existing lighting LV power supply air conditioning system ventilation system and emergency DC lighting for the main control building 6J2 One 1 lot of complete set of design supply
28. programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 33 0 415 kV station auxiliary transformer feeder circuits For each feeder minimum two meters main amp check The system and requirements shall generally be as shown in Bid drawing and technical specification of Volume 2 and shall include one 125A outdoor weatherproof 3 phase with neutral and earth switched socket outlet and plug as per IEC 309 to be installed cabled and connected adjacent to the auxiliary transformers 3l Civil Works Building and Foundation 311 Complete earth filling by imported carried earth free from foreign solid particles organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 60 800 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 312 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations Schedule A Requirements transformer foundations blast walls oil pit entrance amp internal roads cable trenches septic tank soak way surfacing gravel laying drainage security fences boundary wall sentry post guard house car port etc
29. supply and installation of earthing system and lightning protection screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations 2F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 2G Batteries Chargers and DC Distribution 2G1 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 100 batteries complete each capacity shall not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75A rating c One 1 set of DC distribution board The DC distribution board shall be with 50 overall spare switches for future use d Two 2 sets of online UPS 3kVA for Substation Automation System panels 2G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supply Schedule A Requirements The system shall generally be as shown in bid drawing and shal
30. tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transsmission line bays 1A2 1 Two 2 sets of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch for bus coupler 1A2 2 Six 6 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 1A2 3 Twelve 12 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors without earthing switch 1A3 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus coupler bay 2000 14 1A3 2 Twelve 12 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 1A3 3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for Transformer bays 1A4 1 Eighteen 18 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT Schedule A Requirements 1A4 2 Six 6 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL inductive voltage transformers IVT 1A5 Eighteen 18 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current
31. telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of two new 132kV line bays All required electrical signals shall be transmitted to the NLDC through the Remote terminal units RTU All HV breakers motorized disconnectors etc shall be controlled form NLDC through the remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made C264 type 8 Extension of existing 132kV AIS Substation at Mymensingh RPCL Schedule A Requirements Mymensingh is situated at the north side about 120km away from the capital city Dhaka The configuration of the existing 132kV busbar is double bus arrangement and consists of two 2 line bays two 2 power station bays and a bus tie bay The existing bus shall be extended to accommodate two overhead line bays 132kV Air Insulated Switchgears 15 132kV AIS switchyard for extension of new two 2 132kV overhead line bays in order to connect 132kV overhead line Tangail 1 amp 2 Control Protection amp Metering Associated control metering protection equipment synchronizing scheme for new two 2 132kV overhead line bays Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication an
32. with spring stored energy operating mechanism for Transformer bays 3A1 3 One 1 set of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transsmission line bay 3A2 1 Two 2 sets of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch for bus coupler 3A2 2 Three 3 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 3A2 3 Six 6 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors without earthing switch 3A3 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus coupler bay 2000 1A 3A3 2 Three 3 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 3A3 3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for Transformer bays 3 4 1 Nine 9 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 3A4 2 Six 6 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL inductive voltage transformers IVT 3A5 9 nos
33. without earthing switch 9A3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 9 4 Six 6 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT Schedule A Requirements 9A5 Six 6 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 9A6 Two 2 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections 9A7 One 1 lot of flexible conductors for busbar ACSR Twin Mallard 795MCM amp jackbus jumper equipment connections ACSR Single Grosbeak 636 including all necessary clamps amp connectors required for replacement of existing bus conductor single Mallard 795MCM and extension of busbar to accommodate two line bays 9A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 145kV switchyard 9 9 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard 9D Control Protection amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings
34. 0 sq mm copper underground 33kV Cable total length three thousand 3000 meter required for completing connections for 33kV interbus new transformer to new outdoor 33kV bus and from new location of existing transformer to existing indoor bus including all necessary clamps amp connectors 6B6 3 XLPE insulated single core 185 sq mm copper underground 33kV Cable total length three hundred 300 meter required for completing connections for 33kV existing station aux transformer to new location of existing 132 33kV transformer including all necessary clamps amp connectors 6B7 One 1 lot of insulators and fittings including all necessary accessories required to complete 33kV switchyard 6B8 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required for completing 33kV switchyard 6B9 One 1 set of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL indoor type vacuum circuit breakers VCB spring stored energy operating mechanism with associated disconnecting switches earth switches CT PT LA amp bus coupling materials for extension of existing indoor type 33kV bus and connecting to new outdoor bus 6B10 One 1 lot of dismantling of existing XLPE insulated underground 33kV Cable including all necessary clamps amp connectors location of existing transformer to existing indoor bus and handing over to store 6 Power Transformers
35. 30VA e PP E M lan MANUI NU E eM e ORE Dur CU DATUM 1600 800 1 _CI 5P20 30VA 25 mm kV of system rated highest COOLING i Number of cooler banks required per transformer ii Rating of each cooler bank as percentage of total loss at CMR iii Standby cooling requirement suit transformer design 9 100 iii One fan GENERAL Type of oil preservation system Maximum acceptable noise level SL No cpu Mp OL I APPENDIX A3 SCHEDULE OF TECHNICAL REQUIREMENTS OF 33 0 415 kV AUXILIARY STATION SERVICE TRANSFORMER Description AUXILIARY TRANSFORMER Nominal rating Number of phase Frequency No load voltage ratio Corresponding highest system voltage Type of cooling Coolant Type Installation Earthing Windings Test voltage Impulse test voltage 1 2 50 us Power frequency withstand voltage for 1 min Vector group Neutral to be brought out Neutral insulation LT bushing kV kV 200 3 50 33 0 415 36 1 1 ONAN Mineral Oil Core Conservator Type Outdoor Tropical and high rainfall and humidity Neutral solidly earthed in interconnected star winding Neutral earthed in LT 3 phase 4 wire system Double wound of high conductivity copper 170 10 HT LT 70 2 5 HT LT dyn11 HT no LT Yes Full insulation and 10096 loading capacity 4 nos Schedule A Requirements 17 Impedance voltage 4 5 18 Tapping range Off
36. 313 One 1 lot of complete design supply and construction of all civil items and facilities required for the two storied main control building including cable basement 3J Lighting Small Power Air Conditioning and Ventilation 3J1 One 1 lot of complete design supply installation and commissioning of equipment to provide lighting LV power supply air conditioning system ventilation system and emergency DC lighting for the main control building 3J2 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection 3K Fibre Optic Multiplexer Equipment for Communication and Protection 3K1 The equipment to be supplied installed and commissioned shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores 21 relay carrier signal main and back up SCADA data from switchgear and control system Hot line telephone system 3K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main dist
37. 45kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transmission line bays 2 1 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors with manual earthing switch 2 2 Four 4 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors without earthing switch Schedule A Requirements Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays Six 6 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT TAS Six 6 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10 nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 6 Two 2 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections TAT One 1 lot of flexible conductors for busbar ACSR Twin Martin 1351 MCM amp jackbus jumper equipment connections ACSR Grosbeak 636 including all necessary clamps amp connectors required for extension of busbar to accommodate two line bays 8 One 1 lot of insulators and fittings including all necessary acc
38. 70 Schedule A Requirements 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 10 Extension of existing 132 33kV AIS Substation at Chatak The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 10A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 10A1 One 1 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breakers with spring stored energy operating mechanism for Transmission line bays 10 2 1 One 1 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors with manual earthing switch 10 2 2 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors without earthing switch 10A3 Three 3 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 10A4 Three 3 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 10A5 Three 3 nos of 120kV rated voltage 102kV rms continuous operat
39. Instrument Transformers D MD EAM 1 Rated lightning impulse withstand 650 kVp 170 kVp voltage voltage 1 min 5 Radio interference level for 0 5 1000 micro V 1000 micro V MHz to 2 MHz at 92 kVrms at 92 kVrms Pr PI M ERE RM DEM EE ML DEM EL AT EINE A J 2 Ratio 800 400 1 1 1 2000 1 Class of accuracy Protection 5 20 _ Metering Class 0 2 5 Min knee point voltage at lowest ratio Volts gt 1kV max ratio for protection core lt 150V max ratio for metering core 6 Max magnetizing current guaranteed at knee point voltage amp the lowest 7 Max resistance of secondary winding at M R 75 C and at lowest ratio ohms E Ratio 1200 800 1 1 1 for 25 41MVA 1600 800 1 1 1 for 50 75MVA 3 Class of accuracy Protection 5P20 Metering Class 0 2 c PMID ET PE 5 Min knee point voltage at lowest ratio Volts gt 1kV max ratio for protection core lt 150V max ratio for metering core 26 Max magnetizing current guaranteed at knee point voltage amp the l
40. LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 101 Land Development Civil Works Building and Foundation Schedule A Requirements 1011 Complete earth filling by imported carried earth free from foreign solid particles and organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 6 500 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 1012 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads cable trenches surfacing gravel laying drainage security fences etc 10J Lighting Small Power 10J1 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement for the plant amp equipment to be installed under this turnkey bid 10K Fibre Optic Multiplexer Equipment for Communication and
41. Mymensingh Schedule A Requirements The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 8A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 8A1 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breakers with spring stored energy operating mechanism for Transmission line bays 8A2 1 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors with manual earthing switch 8 2 2 Four 4 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors without earthing switch 8A3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 8 4 Six 6 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 8A5 Six 6 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 8A6 Two 2 nos single phase 145kV pos
42. POWER GRID COMPANY BANGLADESH LIMITED Procurement of Plant Design Supply and Install Single Stage Two Envelope Bidding Procedure BIDDING DOCUMENT FOR PROCUREMENT OF PACKAGE 1 DESIGN SUPPLY ERECTION TESTING amp COMMISSIONING OF 132KV TRANSMISSION LINES AND SUBSTATIONS ON TURNKEY BASIS CONTRACT NO PSEEIP ADB PGCB SS LOT 2 SUBSTATIONS VOLUME 3 OF 3 BID PRICES AND SCHEDULES MAY 2013 POWER GRID COMPANY BANGLADESH LIMITED BIDDING DOCUMENT FOR PACKAGE 1 DESIGN SUPPLY ERECTION TESTING amp COMMISSIONING OF 132KV TRANSMISSION LINES AND SUBSTATIONS ON TURNKEY BASIS Lot 2 Substation INDEX TO VOLUMES Volume 1 of 3 Section 1 Instruction to Bidders Section 2 Bid Data Sheet Section 3 Evaluation and Qualification Criteria Section 4 Bid Forms Section 5 Eligible Countries Section 6 Employer s Requirements Section 7 General Conditions of Contract Section 8 Special Conditions of Contract Section 9 Contract Forms Volume 2 of 3 Scope of Work Technical Specifications Drawings forming Part of Specifications Volume 3 of 3 Schedule A Introduction amp Preamble to the Price amp Technical Schedules Schedule B Bid Prices Schedule C Times for Delivery and Completion Schedule D Manufacturers Places of Manufacture and Testing Schedule E Technical Particulars and Guarantees Schedule F Proposed Subcontractors Schedule Co efficient and indices for Price Adjustment
43. Protection 10 1 The equipment to be supplied installed and commissioned shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning for extension of existing fibre optic multiplexer amp communication equipment AREVA France made MSE 5001 type including supply of a new digital telephone exchange and necessary works to interface with existing system is to be provided to accommodate new bay 10K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 10L SCADA system for Telecontrol and Telemetering 10L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required atthe existing National Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in
44. accuracy class 0 2 for two transformer feeder circuits Power X former l amp Il For each feeder minimum two meters main amp check The scope of works also includes supply of software s of the above energy meters for future re configuration 1E Multicore Cables 1E1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and Schedule A Requirements have individual cores identified to be used for connection of all equipment supplied under the Contract The overall substation cable routing and core schedules shall also be provided 1F Earthing and Lightning Protection 1F1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations 1F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 1G Batteries Chargers and DC Distribution 1G1 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity shall
45. all include a Two 2 sets of 100 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three phase 50Hz 415 V AC c One 1 lot of DC distribution board The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 50 overall spare switches for future use 4H LVAC Distribution 4H1 One 1 lot of switchboard for substation services to be supplied installed and commissioned to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 4H2 One 1 lot of Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 33 0 415 kV station auxiliary transformer feeder circuits For each feeder minimum two meters main amp check The system and requirements shall generally be as shown in Bid drawing and technical specification of Volume 2 and shall include one 125A outdoor weatherproof 3 phase with neutral and earth switched socket outlet and plug as per IEC 309 to be installed cabled and connected adjacent to the auxiliary transformers Schedule A Requirements 41 Land Development Civil Works Building and Foundation 411 Complete earth filling by imported carried earth free from foreign solid particles
46. all not be less than 250Ah at the 5 hour rate of discharge Schedule A Requirements b Two 2 sets of battery chargers complete each charger shall not be less than 75 rating c One 1 set of DC distribution board The DC distribution board shall be with 5096 overall spare switches for future use d Two 2 sets of online UPS 3kVA for Substation Automation system panels 3G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supply The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three phase 50Hz 415 V AC c One 1 lot of DC distribution board The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 5096 overall spare switches for future use 3H LVAC Distribution 3H1 One 1 lot of LVAC switchboard for substation services to be supplied installed and commissioned to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 3H2 One 1 lot of Tariff metering panel to accommodate
47. alled glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The overall substation cable routing and core schedules shall also be provided Some of the existing cables may be reused and the remaining are to be recovered and handing over to store SF Earthing and Lightning Protection SF 1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations 5F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 5G Batteries Chargers and DC Distribution Schedule A Requirements 5G1 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The existing Batteries Chargers and DC Distribution panels are to be replaced by the new sets and handed over to the store with all recovered materials The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity shall not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75 rating
48. and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement for the plant amp equipment to be installed under this turnkey bid 8K Fibre Optic Multiplexer Equipment for Communication and Protection 8K1 The equipment to be supplied installed and commissioned shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores Schedule A Requirements 21 relay carrier signal main and back up SCADA data from switchgear and control system Hot line telephone system 8K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 8L SCADA system for Telecontrol and Telemetering 8L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at t
49. and export MWh and MVArh meters accuracy class 0 2 for two transformer feeder circuits Power X former l amp Il For each feeder minimum two meters main amp check The scope of works also includes supply of software s of the above energy meters for future re configuration 3E Multicore Cables 3E1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The overall substation cable routing and core schedules shall also be provided 3F Earthing and Lightning Protection 3F1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations 3F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 3G Batteries Chargers and DC Distribution 3G1 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 10096 batteries complete each capacity sh
50. ation Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Complete set of 110V DC amp 48V DC and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set Land Development Civil Works Building and Foundation Schedule A Requirements Complete design supply and construction of all civil items required for land development Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads outdoor lighting system cable trenches septic tank earth filling surfacing drainage security fences guard house earthing amp lightning protection switchyard lighting etc Complete design supply and construction of all civil items including all necessary architecture amp structural requirements cable trays fittings and flooring amp finishes air conditioning and lighting for a new two storied main control room building SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and softwa
51. c Multiplexer Equipment for Communication and Protection 2K1 The equipment to be supplied installed and commissioned shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores 21 relay carrier signal main and back up SCADA data from switchgear and control system Hot line telephone system 2K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 2L SCADA system for Telecontrol and Telemetering 2L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gat
52. ction through fibre cores 21 relay carrier signal main and back up SCADA data from switchgear and control system Hot line telephone system 5 2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 5L SCADA system for Telecontrol and Telemetering 511 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required atthe existing National Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 5M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedu
53. ction for one 1 set of 33kV interbus bay circuit 6D6 3 Control Protection Metering amp Substation Automation System including event recording function for one 1 set of existing 132 33kV transformer circuit The existing panels of one transformer bay shall be replaced by new sets and the recovered panels with all associated materials are to be handed over to the store 6D4 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 one transformer For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration The existing energy meters of the existing feeders are to be shifted to the new panel 6E Multicore Cables 6E1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied Schedule A Requirements under the Contract The overall substation cable routing and core schedules shall also be provided Some of the existing cables may be reused and the remaining are to be recovered and handing over to store 6 Earthing and Lightning Protection 6F 1 One 1 lot of design supply and installation of earthing system and lightning protec
54. d integration with existing communication network of PGCB DC and LVAC System Extension of existing DCDB amp LVAC system by necessary materials required for the plant being installed Civil Works Building and Foundation Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads outdoor lighting system cable trenches surfacing drainage security fences earthing amp lightning protection etc to accommodate new bays SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of two new 132kV line bays All required electrical signals shall be transmitted to the NLDC through the Remote terminal units RTU All HV breakers motorized disconnectors etc shall be controlled form NLDC through the remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made C264 type 9 Extension of existing 132 33kV AIS Substation at Tangail Tangail is situated at the western side about 100km away from the capital city Dhaka The configuration of the existi
55. dividual insulator unit 430 Minimum or as required to obtain total creepage distance mm 6 Power frequency withstand voltage of the 275 complete string kVrms 27 Lightning impulse withstand voltage of the 650 complete string with ring Dry wet kVp Er ru ME c MEE EU I 8 Switching surge withstand voltage of the complete string with rings Dry amp wet kVp 9 Power frequency puncture withstand voltage for a 1 3 times the actual wet String insulator unit flashover voltage of the unit 10 Minimum corona extinction voltage level of the complete string with ring Dry kVrms 211 Level of the complete string with ring 500 micro V 12 Total creepage distance of complete insulator 3625 _ string mm Schedule A Requirements APPENDIX A 11 SCHEDULE OF TECHNICAL REQUIREMENTS OF 33kV XLPE POWER CABLE 1 Rated voltage 36kV NAT TEI E Cu E EE c ME EL c 2007 2 stranded compact round maze ea cee a 1 185 mm cial MIRI E NOMEN eo oor 2 2 2055 6 53 T 12 Short circuit
56. e 1 132 33kV 50 75MVA transformer and renovation of existing two 2 line bays Haripur 1 Ghorashal 1 amp existing one 1 132 33kV transformer bay existing one 1 bus tie bay 33kV Air Insulated Switchgear and Connection The existing 33kV indoor type AIS single bus shall be extended to accommodate one 1 bustie bay for connecting new outdoor bus A complete new 33kV outdoor type switchyard with single bus configuration is to be constructed with one 1 bay for LV side of 132 33kV 50 75MVA transformer and one 1 bay for bus tie which shall be connected to existing indoor bus with underground XLPE insulated copper cable rated current 1500A The new one 33 415kV auxilliary transformer bay shall be connected to the 33kV new outdoor bus in order to facilitate station power supply 132 33kV three phase power transformer One 1 sets of 50 75MVA ONAN ONAF 132 33kV three phase power transformer 33 0 415kV auxiliary transformer One 1 set of 33 0 415kV 200kVA outdoor type auxiliary transformers to supply the substation auxiliary loads Control Protection Substation Automation amp Metering Schedule A Requirements Associated control metering protection equipment synchronizing scheme and substation automation system for new four 4 132kV overhead line bays and replacement of existing two 2 line bays existing one 1 transformer bay and existing one bus tie bay Fibre Optic Multiplexer Equipment for Communication and Pro
57. e 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 132kV switchyard 4B 33kV Air Insulated Switches and Connection for Auxiliary Transformers The 33kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 4B1 Two 2 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL outdoor Vacuum Circuit Breakers VCB with spring stored energy operating mechanism 4B2 Seven 7 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL single vertical break post type disconnectors 4B3 Six 6 nos of single phase 3 core multi ratio 36kV 25kA 1sec 50Hz 170kVp BIL post type current transformer 4B4 Twelve 12 nos of single phase 2 core 36kV 25kA 1sec 50Hz 650kVp BIL voltage transformers 4B5 Twelve 12 nos of 30kV rated voltage 10kA nominal discharge current 50Hz Heavy duty station class single phase surge arresters 4B6 One 1 lot of flexible conductors for busbar jackbus jumper equipment connections ACSR Twin Finch 1113 including all necessary clamps amp connectors required for completing 33kV busbar and switchgear connection 4B7 One 1 lot of insulators and fittings including all necessary accessories required to complete 33kV switchyard 4B8 One 1 lot of
58. e of master station of NLDC are to be carried out Mandatory Spares Maintenance tools amp Test Equipment Supply of complete mandatory spare and spare parts of transformer switchgear control equipment protection relays meters maintenance tools amp test equipment The materials shall have to be handed over to the designated store as per instruction of the Engineer 2 Khagrachori 132 33kV AIS Substation Khagrachori is situated at the south east hilly region and about 80km away from the main sea port Chittagong The configuration of the 132kV busbar shall be double busbar scheme Switchyard layout shall be designed such as to accommodate double bus U type configuration 132kV Air Insulated Switchgears 15 132kV AIS switchyard for two 2 132kV overhead line bays in order to connect one 132kV double circuit overhead line Rangamati 1 amp 2 two 2 132 33kV transformer bays for two sets of 132 33kV 25 41 three phase transformers one 1 bus coupler bay Space provision with busbar gantry structure amp switchyard finished surface without equipment is to be kept for extension of two 2 future 132kV line bays amp one 1 future transformer bay 132kV Side 33kV Air Insulated Switches and Connection 33kV AIS switchyard single bus configuration and switches for two 2 LV side of 132 33kV power transformer bays and two 2 33 415kV aux transformer bays in order to facilitate station power supply Schedule_A R
59. e phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections One 1 lot of flexible conductors for busbar ACSR Twin 1113 amp jackbus jumper equipment connections ACSR Single Grosbeak 636 including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection The existing conductor clamps amp connectors with all associated accessories are to be dismantled and handing over to store 5A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 145kV switchyard 5A9 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard Some of existing gantry column beam amp equipment structure may be reused and the remaining are to be dismantled and handing over to store 5A10 1 Relocation of existing four 4 sets of 145kV dead tank type SF6 gas circuit breakers with all associated accessories two sets for two existing line bays and two sets for two existing Transformer bays 5A10 2 Relocation of existing twelve 12 nos Single phase 145kV voltage transformer with wave trap amp all associated accessories six nos for two existing line bays and six nos for bus 5A10 3 Relocation of existing six 6 nos Single phase 120kV lightning arrestors wi
60. ed shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning for extension of existing fibre optic multiplexer amp communication equipment AREVA France made MSE 5001 type including necessary works to interface with existing system is to be provided to accommodate new bays 7K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 7L SCADA system for Telecontrol and Telemetering TL1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 8 Extension of existing 132 33kV AIS Substation at RPCL
61. ee phase transformers one 1 bus coupler bay Space provision with busbar gantry structure amp switchyard finished surface without equipment is to be kept for extension of two 2 future 132kV line bays amp one 1 future transformer bay 132kV Side 33kV Air Insulated Switches and Connection Schedule A Requirements 33kV AIS switchyard single bus configuration and switches for two 2 LV side of 132 33kV power transformer bays and two 2 33 415kV aux transformer bays in order to facilitate station power supply 132 33kV three phase power transformer Two 2 sets of 25 41 132 33kV three phase power transformers 33 0 415kV auxiliary transformer Two 2 sets of 33 0 415kV 200 outdoor type auxiliary transformers to supply the substation auxiliary loads Control Protection Substation Automation amp Metering Associated control metering protection equipment synchronizing scheme and substation automation system for complete substation Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Complete set of 110V DC amp 48V DC and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set
62. en LV terminal and earth kV rms winding kV rms Rated voltage levels Phase angle error minutes 0 Bunn way Class of accuracy 6 1 2 3 4 SS rupee 7 8 9 11 Secondary Voltage D Schedule A Requirements 50 and 777 capacitance STU eee E Protection Metering MONS 0 M0N3 0 oz 150 4 10 if the low voltage terminal is exposed 6 36kV Class Voltage Transformer 36 kV rey eos MA duet paeem One minute power frequency i stsi i lt S Ot withstand voltage between LV terminal and earth kV rms 4 10 if the low voltage terminal is exposed winding kV rms Max highest system voltage Standard 0 00000 HIBERUM INT E 5 Max continuous operating 222 voltage 6 Nominal discharge current 145kV 36kV IEC 600994 ELE e Me ME 10 duty 10 Heavy duty 3 8 Surge counter Yes 0 9 Leakage current detector Yes Yes 0 APPENDIX A2 1 SCHEDULE OF TECHNICAL REQUIREMENTS OF 132 33 POWER TRANSFORMER 25 41 MVA 4 Normal ratio of transformation at no load and _at pri
63. epair Gateway shall have dual connection to ethernet switch hot and standby IEC 60255 5 IEC 61000 4 4 Calss 4 EN 50081 2 Class A Yes 20 Yrs Yes Yes Yes Hrs Hrs Yes E LE Physical Meduim Each communication devices shall have dual connection hot and standby Number of years of proven field experience of offered unit Separate Bay controller unit provided for each bay 4 _ Type of bay controller offered HV MV Select Before Operate with Open Execute amp Close Execute Single bit dependence Interlocking bay amp Station wide Synchrocheck function Maximum Voltage difference Maximum Frequency difference Maximum Phase difference Double command blocking Independent settable parameter groups Local Display Unit Sequence of event recorder Events Time resolution Disturbance recording transfer function Yes HV Yes No Yes Specify range Specify range Specify range Yes 4 Yes Comtrade file generation function of Distrubance Yes Recorder IED shall have dual connection to Ethernet switch Yes hot amp standby Comprehensive self supervision Yes Battery free backup of events and disturbance Yes records Insulation tests 60255 5 Fast disturbance tests 61000 4 4 Class 4 MTBF Hrs MTTR Hrs Temperature range IED s Ope
64. equirements 132 33kV three phase power transformer Two 2 sets of 25 41 132 33kV three phase power transformers 33 0 415kV auxiliary transformer Two 2 sets of 33 0 415kV 200kVA outdoor type auxiliary transformers to supply the substation auxiliary loads Control Protection Substation Automation amp Metering Associated control metering protection equipment synchronizing scheme and substation automation system for complete substation Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Complete set of 110V DC amp 48V DC and LVAC system with all necessary materials required for the plant being installed with 50 spares for future use The system shall be comprises with a backup standby set Land Development Civil Works Building and Foundation Complete design supply and construction of all civil items required for land development Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads outdoor lighting system cable trenches septic tank earth filling surfacing drainage security fences guard house earthing amp lightnin
65. essories required to complete 145kV switchyard TAQ One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard 7D Control Protection amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 7D1 Control Protection amp Metering for two 2 sets of overhead line circuits for two new line bays 7D2 Extension of existing Busbar protection system to accommodate two line bays one 1 lot 7D3 Tariff metering to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 2 132kV line For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 7E Multicore Cables 1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The cable routing and core schedules shall also be provided 7F Earthing and Lightning Protection 7F1 One 1 lot of design supply and installation of earthing system and lightn
66. eway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 2M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedule B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be provided The materials shall have to be handed over to the designated store as per instruction of the Engineer 3 Beanibazar 132 33kV AIS Substation The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 3A 145kV Air Insulated Switchgear AIS Schedule A Requirements The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 3A1 1 One 1 set of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism or spring hydraulic combination mechanism for bus coupler 3A1 2 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breakes
67. g amp lightning protection etc to accommodate new bays SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of two new 132kV line bays All required electrical signals shall be transmitted to the NLDC through the Remote terminal units RTU All HV breakers motorized disconnectors etc shall be controlled form NLDC through the remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made C264 type 10 Extension of existing 132 33kV AIS Substation at Chatak Chatak is situated at the north east region about 265km away from the capital city Dhaka The configuration of the existing 132kV busbar is double bus arrangement and consists of two 2 line bays three 3 transformer bay and a bus tie bay The existing bus shall be extended to accommodate two 2 overhead line bays one shall be fully equipped and the other shall be kept unequipped as future provision 132kV Air Insulated Switchgears AIS Schedule A Requirements 132kV AIS switchyard for extension of new one 1 132kV overhead line bays in order to connect 132kV overhead line Sunamganj 1 Co
68. g and Foundation 511 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations entrance amp internal roads cable trenches surfacing gravel laying drainage security fences etc Schedule A Requirements 512 1 lot of complete design supply construction of all civil items and facilities required for internal renovation of existing control room building including placing of new floor tiles 5J Air Conditioning and Ventilation 5J1 One 1 lot of complete design supply installation and commissioning of equipment to renovate the existing air conditioning system amp ventilation system for the main control building 5J2 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement 5K Fibre Optic Multiplexer Equipment for Communication and Protection 5K1 The equipment to be supplied installed and commissioned shall be as shown on bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line prote
69. g protection switchyard lighting etc Complete design supply and construction of all civil items including all necessary architecture amp structural requirements cable trays fittings and flooring amp finishes air conditioning and lighting for a new two storied main control room building SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 101 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out Mandatory Spares Maintenance tools amp Test Equipment Schedule A Requirements Supply of complete mandatory spare and spare parts of transformer switchgear control equipment protection relays meters maintenance tools amp test equipment The materials shall have to be handed over to the designated store as per instruction of the Engineer 3 Bianibazar 132 33kV AIS Substation Bianibazari is situated at the
70. he existing National Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 9 Extension of existing 132 33kV AIS Substation at Tangail The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 9A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix 1 to this section and bid drawings shall comprise the following 9 1 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transmission line bays 9 2 1 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors with manual earthing switch 9A2 2 Six 6 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single centre break post type motor operated disconnectors
71. ight 8 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors without earthing switch 6A2 4 Eight 8 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL single break post type motor operated disconnectors without earthing switch series type 6A3 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus tie bay 2000 14 6A3 2 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for new line bays 6A3 3 Three 3 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for new transformer bays 6 4 1 Twelve 12 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 6A4 2 Six 6 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL Inductive Voltage Transformers IVT 6A5 Fifteen 15 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 6A6 Twelve 12 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections Schedule A Requirements 6A7 One 1 lot of flexible conductors for busbar ACSR Twin Finch 1113 MCM amp jackbus
72. ign supply and construction of all civil items and facilities required for the two storied main control building including cable basement 1J Lighting Small Power Air Conditioning and Ventilation 1J1 One 1 lot of complete design supply installation and commissioning of equipment to provide lighting LV power supply air conditioning system ventilation system and emergency DC lighting for the main control building 1J2 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection 1K Fibre Optic Multiplexer Equipment for Communication and Protection 1K1 The equipment to be supplied installed and commissioned shall be as shown bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores 21 relay carrier signal main and back up SCADA data from switchgear and control system Digital Telephone exchange including hot line telephone system Schedule A Requirements 1K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line ter
73. ing protection screen including connections connectors and clamps for the portion to be extended under this turnkey bid and to suit the substation overall arrangement Schedule A Requirements 7G DC Distribution 761 One 1 lot of modification of existing DCDB system by necessary MCBs cable connectors etc required for the plant being installed 7H LVAC Distribution 7H1 One 1 lot of modification of existing LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid Civil Works Building and Foundation 711 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads cable trenches surfacing gravel laying drainage security fences etc 7 Lighting Small Power 7J1 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection to suit the substation overall arrangement for the plant amp equipment to be installed under this turnkey bid 7K Fibre Optic Multiplexer Equipment for Communication and Protection 7K1 The equipment to be supplied installed and commission
74. ing voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 10A7 One 1 lot of flexible conductors for busbar ACSR twin Moose amp jackbus jumper equipment connections ACSR Single Grosbeak 636MCM including all necessary clamps amp connectors required for extension of busbar to accommodate two line bays 10A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 145kV switchyard 10A9 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard 10D Control Protection amp Metering 132 kV Circuits Schedule A Requirements The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 10D1 Control Protection amp Metering for one 1 sets of overhead line circuits for one new line bay 10D2 Tariff metering to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for one 1 132kV line For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 10E Multicore Cables 10E1 One 1 lot complete set of multicore low v
75. ipment to be installed under this turnkey bid 9K Fibre Optic Multiplexer Equipment for Communication and Protection 9K1 The equipment to be supplied installed and commissioned shall be as shown on bid drawing One 1 lot complete set of design supply installation and commissioning for extension of existing fibre optic multiplexer amp communication equipment AREVA France made MSE 5001 type including necessary works to interface with existing system is to be provided to accommodate new bays 9K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 9L SCADA system for Telecontrol and Telemetering 9L 1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required atthe existing National Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 608
76. ired at the existing National Load Despatch Center NLDC at Rampura for integration of one 1 new 132kV line bays All required electrical signals shall be transmitted to the NLDC through the Remote terminal units RTU All HV breakers motorized disconnectors etc shall be controlled form NLDC through the remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made MiCOM C264 type Schedule A Requirements SCHEDULE A REQUIREMENTS 1 Rangamati 132 33kV AIS Substation The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 1A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 1A1 1 One 1 set of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for bus coupler 1 1 2 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transformer bays 1A1 3 Four 4 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live
77. l include a Two 2 sets of 10096 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three phase 50Hz 415 V AC c One 1 lot of DC distribution board The DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 5096 overall spare switches for future use 2H LVAC Distribution 2H1 One 1 lot of LVAC switchboard for substation services to be supplied installed and commissioned to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 2H2 One 1 lot of Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 33 0 415 kV station auxiliary transformer feeder circuits For each feeder minimum two meters main amp check The system and requirements shall generally be as shown in Bid drawing and technical specification of Volume 2 and shall include one 125A outdoor weatherproof 3 phase with neutral and earth switched socket outlet and plug as per IEC 309 to be installed cabled and connected adjacent to the auxiliary transformers 21 Civil Works Building and Foundation 211 Complete earth filling by imported carried earth free from foreign solid particles organic materials in addition to the earth
78. l structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 132kV switchyard 2B 33kV Air Insulated Switches and Connection for Auxiliary Transformers The 33kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix 1 to this section and bid drawings shall comprise the following 2B1 Two 2 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL outdoor Vacuum Circuit Breakers VCB with spring stored energy operating mechanism 2B2 Seven 7 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL single vertical break post type disconnectors Schedule A Requirements 2B3 Six 6 nos of single phase 3 core multi ratio 36kV 25kA 1sec 50Hz 170kVp BIL post type current transformer 2B4 Twelve 12 nos of single phase 2 core 36kV 25kA 1sec 50Hz 650kVp BIL voltage transformers 2B5 Twelve 12 nos of 30kV rated voltage 10kA nominal discharge current 50Hz Heavy duty station class single phase surge arresters 2B6 One 1 lot of flexible conductors for busbar jackbus jumper equipment connections ACSR Twin Finch 1113 including all necessary clamps amp connectors required for completing 33kV busbar and switchgear connection 2B7 One 1 lot of insulators and fittings including all necessary accessories required to complete 33kV switchyard 2B8 O
79. le A Requirements Complete design supply and construction of all civil items required for land development Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads outdoor lighting system cable trenches septic tank earth filling surfacing drainage security fences guard house earthing amp lightning protection switchyard lighting etc Complete design supply and construction of all civil items including all necessary architecture amp structural requirements cable trays fittings and flooring amp finishes air conditioning and lighting for a new two storied main control room building SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the softwar
80. le B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be provided The materials shall have to be handed over to the designated store as per instruction of the Engineer Schedule A Requirements 6 Extension amp Renovation of existing 132 33kV AIS Substation at Narshindi The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 6A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 6A1 1 Four 4 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transmission line bays 6A1 2 one 1 set of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transformer bays 6A2 1 Two 2 sets of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 6A2 2 Six 6 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 6A2 3 E
81. load tap changer 5 in the step of 2 5 19 Tap changer control Manual APPENDIX A4 SCHEDULE OF TECHNICAL REQUIREMENTS OF APPENDIX A4 NI CAD BATTERY SL Description 1 Installation Indoor 2 Cell type Ni cd 3 Voltage Normal 1 2 volts per cell 4 Float voltage 1 40 1 42 volt cell 5 Equalizing voltage 1 55 1 65 volt cell 6 Capacity in AH at 20 C 250 AH 5 Hr for 110 V DC 150 AH 5 Hr for 48 V DC 7 Ambient temperature 45 C 8 Positive plate Tubular Negative plate Pasted 10 Type of container Plastic polymer 11 Discharge voltage 1 0 V Cell 12 gravity of electrolyte 1 19 1 13 Sp gravity of electrolyte Charged 1 23 010 at 20 C 14 Vent plug Anti corrosive amp fire proof 15 Cell condition Pre charged 16 Battery stand Steel frame of step type 17 Standard IEC or equivalent APPENDIX A5 SCHEDULE OF TECHNICAL REQUIREMENTS OF 110 V BATERY CHARGER SL No Description A GENERAL 1 Installation Indoor 2 Rectifier type Thyristor controlled 52 Rated D C voltage 110V 5 4 Rated output current 75 Amps 5 Charging mode Both constant current amp constant voltage 6 High Voltage Insulation 1000 V AC for 1 minute between input to output and input to ground 7 Insulation resistance 10 MO with 500 V DC for 1 minute 8 Cooling system Self amp natural air cooled OO I 99 Qus OD NIIS SL No QI do Is Relative humidity Ambient tempera
82. ly The existing Batteries Chargers and DC Distribution panels are to be replaced by the new sets and handed over to the store with all recovered materials The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 100 batteries complete each capacity shall not be less than 150 Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers of output 48V DC 30A and input voltage three pahse 50Hz 415 V AC One 1 lot of DC distribution board DC distribution board shall be suitable to connect the new fibre optic multiplexer equipment for communication and protection with 50 overall spare switches for future use 6H LVAC Distribution Schedule A Requirements 6H1 One 1 lot of modification of existing LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 6H2 One 1 lot of Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for new aux Transformer For each feeder minimum two meters main amp check The system and requirements shall generally be as shown in Bid drawing and technical specification of Volume 2 and shall include one 125A outdoor weatherproof 3 phase with neutral and earth switched socket outlet and plug as
83. mination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 1L SCADA system for Telecontrol and Telemetering 1L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 1M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedule B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be provided The materials shall have to be handed over to the designated store as per instruction of the Engineer 2 Khagrachori 132 33kV AIS Substation The equipmen
84. n amp Control IED s connected same bus self monitoring display of measured values remote parameterization disturbance record upload and analysis Availability Calculation shall be furnished for each equipments as well as for the entire system p H M M M The main part of the system HMI Gateway IED shall be furnished with dual communication port against any failure SNTP server shall provide GPS time sync Yes information to all communication HMI Gateway IED and the system shall be synchronized I Wr ME Ethernet switch shall have dual system topology not Yes to lose entire system with single swithing system _ failure Number of years of proven field experience of 5 Yrs offered system Note proof of experience should be furnished The components used in the offered system and those with field experience should be the same 20 Yrs Design life of substation Automation System ISO 9001 9002 Manufacturers quality assurance system equivalent Dimensions of cubicle Width mm Depth mm Height mm Floor load N m2 max 600 PI m Im
85. nciple tap HV LV 6 Minimum withstand voltages Full wave impulse withstand of windings kVp 650 170 of line terminal bushings 650 170 Induced over voltage kV rms 275 70 M HER E P C PIENE EE E IE 10 Service conditions External cooling medium Air Altitude not exceeding m 150 _ Air temperature not exceeding 45 Average air temperature in one year not exceeding In any one day ie 45 Average in one year 26 35 211 41 Maximum temperature _ Top rise normal is 50 _ Average ONAN winding rise 6 55 _ Average ONAF winding rise ike 55 11 2 Maximum hot spot temperature at C 98 maximum continuous rating at yearly average ambient temperature 11 3 Winding hot spot temperature on Te 140 emergency overload not exceeding 212 Phase connections HV winding Delta LV winding Star TV winding o 213 Short circuit withstand fault level one sec at terminals of KA 31 5 22 132 kV busbars KA 25 14 Impedance voltage at 75 C and MCR 41 MVA _ between windings on HV Base at Nominal tap 96 10 14 at maximum tap 96 10 14 at minimum tap 9 10712 090 16 1 Total range of variation of on load transformation ratio on HV side as sl 4 Ratio 10 22 2 A eee 16 2
86. nd transformer tap changer control for one 1 sets of existing transformer bay The existing panels of one transformer bay shall be replaced by new set and the recovered panels with all associated materials are to be handed over to the store 6D3 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit The existing panels of one existing bus tie bay shall be replaced by new set and the recovered panels with all associated materials are to be handed over to the store 6D4 Busbar protection system for complete 132kV bus one 1 lot 6D5 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for four 4 132kV line and one transformer For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration The existing energy meters of the existing feeders are to be shifted to the new panel 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of 6D6 1 Control Protection Metering amp Substation Automation System including event recording function for one 1 set of 132 33kV transformer circuit 6D6 2 Control Protection Metering amp Substation Automation System including event recording fun
87. ne 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required for completing 33kV switchyard 2C Power Transformers amp Earthing Auxiliary Transformers 2C1 Two 2 sets of 132 33kV 25 41 MVA three phase outdoor type power transformers with associated bushing CTs including all necessary connections insulators amp fittings 2C2 Two 2 sets 33 0 415kV 200kVA three phase outdoor type station auxiliary transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 2D Control Protection Substation Automation amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 2D1 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of overhead line circuits to Rangamati Rangamati 1 amp 2 2D2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of 132 33 kV power transformer circuits including transformer tap changer control 2D3 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit 2D4 Deleted 2D5 Tariff metering panel to accommodate programmable
88. ng 132kV busbar is main amp transfer bus arrangement and consists of two 2 line bays two 2 transformer bays and one 1 bus tie bay The existing bus shall be extended to accommodate two overhead line bays 132kV Air Insulated Switchgears 15 Schedule A Requirements 132kV AIS switchyard for extension of new two 2 132kV overhead line bays in order to connect 132kV overhead line Mymensing 1 amp 2 Control Protection amp Metering Associated control metering protection equipment and synchronizing scheme for new two 2 132kV overhead line bays Fibre Optic Multiplexer Equipment for Communication and Protection Extension of existing Fibre Optic Multiplexer and communication equipment for protection amp communication The existing Fiber optic multiplexer and communication equipment is AREVA France made MSE 5001 type DC and LVAC System Extension of existing DCDB amp LVAC system by necessary materials required for the plant being installed Land Development Civil Works Building and Foundation Complete design supply and construction of all civil items required for land development filling by carried earth for new area to be extended under this turnkey bid Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads outdoor lighting system cable trenches surfacing drainage security fences earthin
89. nt _iii One fan GENERAL 28 Type of oil preservation system _ Air 29 Maximum acceptable noise level 78 APPENDIX 2 2 SCHEDULE OF TECHNICAL REQUIREMENTS OF 132 33 POWER TRANSFORMER 50 75MVA 4 _ Normal ratio of transformation at no load and at principle tap HV LV ET Meum US EE MOI pce C ra TK RE T EE DR 6 _ Minimum withstand voltages Full wave impulse withstand of windings of line terminal bushings Induced over voltage 210 Service conditions External cooling medium E Air Altitude not exceeding m 150 Air temperature not exceeding 45 Average air temperature in any one year not exceeding In any one day as 45 35 2111 Maximum temperature _ Top oil rise normal Ke 50 Average ONAN winding rise ae 55 _ Average ONAF winding rise 55 Schedule A Requirements 11 2 Maximum hot spot temperature at 98 maximum continuous rating at yearly average ambient temperature 11 3 Winding hot spot temperature on Re 140 emergency overload not exceeding 212 Phase connections HV winding Delta LV winding Star TV winding E ZEN Vector group HV LV TV 213 Short circuit withstand fault level one sec at terminals of 12120 132 kV busbars 25 33
90. ntrol Protection amp Metering Associated control metering protection equipment and synchronizing scheme for new one 1 132kV overhead line bay Fibre Optic Multiplexer Equipment for Communication and Protection Extension of existing Fibre Optic Multiplexer and communication equipment for protection amp communication The existing Fiber optic multiplexer and communication equipment is AREVA France made MSE 5001 type DC and LVAC System Replacement of existing DCDB system by a complete new set of 110V amp 48V DC system and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set Land Development Civil Works Building and Foundation Complete design supply and construction of all civil items required for land development filling by carried earth for new area to be extended under this turnkey bid Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads outdoor lighting system cable trenches surfacing drainage security fences earthing amp lightning protection etc to accommodate new bays SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities requ
91. of existing transformer bays The existing panels of two transformer bays shall be replaced by new sets and the recovered panels with all associated materials are to be handed over to the store 503 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit 504 Busbar protection system for complete 132kV bus one 1 lot 505 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for four 4 132 kV line For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration The existing energy meters of the existing feeders are to be shifted to the new panel 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of oD6 Control Protection Metering amp Substation Automation System including event recording function for two sets of existing 132 33kV transformer circuits The existing panels of two transformer bays shall be replaced by new sets and the recovered panels with all associated materials are to be handed over to the store 5E Multicore Cables 5 1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied inst
92. oltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The cable routing and core schedules shall also be provided 10F Earthing and Lightning Protection 10F1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps for the portion to be extended under this turnkey bid and to suit the substation overall arrangement 10G Battery Charger amp DC Distribution 1001 110V substation NiCad batteries complete with chargers distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The existing Batteries Chargers and DC Distribution panels are to be replaced by the new sets and handed over to the store with all recovered materials The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 100 batteries complete each capacity shall not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75A rating 10G2 One 1 lot of modification of existing DCDB system by necessary MCBs cable connectors etc required for the plant being installed 10H LVAC Distribution 10H1 One 1 lot of modification of existing
93. oltage variation 5 Power factor Full range 6 Efficiency Full load 7 Charge Characteristics During float charge 8 Current limitation D C OUTPUT 1 Voltage 2 Ripple Voltage Full load 3 Charge modes 3 level 4 Float Voltage adjustable 5 Boost Voltage adjustable Schedule_A Requirements 415 Volts 3 Phase 50 5 Hz 5 0 8 85 Constant current Constant voltage 110 48 5 volt 3 Charge Float charge amp Boost charge 1 42 volt cell 1 53 volt cell APPENDIX A7 SCHEDULE OF TECHNICAL REQUIREMENTS OF SUBSTATION AUTOMATION SYSTEM E NER AREE EE ELN I AE A EE EE M E A ANAN EAE N E EE EE A MEE EOM MEET Test Damp heat steady state Test Db and guidance Damp heat cyclic Digital I O Analogue I O dielectric Tests Digital Surge withstand test Radio interference test Transient fast burst test Static Discharge Electromagnetic fields IEC 60068 2 3 IEC 60068 2 30 IEC 60870 3 class 2 60801 5 Class 2 IEC 60870 3 Calss 2 IEC 60801 4 4 60801 2 4 60801 3 3 ode ELI E Temperature range Relative humidity Intelligent Electronic Devices IED s serial communication interface included Protectio
94. onal Load Despatch Center NLDC at Rampura for integration of complete 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 6M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedule B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be provided The materials shall have to be handed over to the designated store as per instruction of the Engineer 7 Extension of existing 132 33kV AIS Substation at Brahamanbaria The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 7A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix 1 to this section and bid drawings shall comprise the following TA1 Two 2 sets of 1
95. ore Cables 8 1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The cable routing and core schedules shall also be provided 8F Earthing and Lightning Protection 8F1 One 1 lot of design supply and installation of earthing system and lightning protection screen including connections connectors and clamps for the portion to be extended under this turnkey bid and to suit the substation overall arrangement 8G DC Distribution 861 One 1 lot of modification of existing DCDB system by necessary MCBs cable connectors etc required for the plant being installed 8H LVAC Distribution 8H1 One 1 lot of modification of existing LVAC switchboard for substation services including supply of all necessary MCBs bus material connection cables lugs etc to provide the 415 240V supplies to all equipment being supplied under this turnkey Bid 8l Civil Works Building and Foundation 811 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations internal roads cable trenches surfacing gravel laying drainage security fences etc 8J Lighting Small Power 8J1 One 1 lot of complete set of design supply installation
96. owest ratio mA n pM EE EU 7 Max resistance of secondary winding at M R 75 C and at lowest ratio ohms 2 Ratio 800 400 1 1 1 2000 1 3 Class of accuracy Protection 5P20 Metering Class 0 2 5 Min knee point voltage at lowest ratio Volts gt 1kV max ratio for protection core lt 150V max ratio for metering core 6 Max magnetizing current guaranteed at MR knee point voltage amp the lowest ratio mA 7 Max resistance of secondary winding at MR T5 C and at lowest ratio ohms 26 Min knee point voltage at gt 1kV max ratio for lt 150V max ratio for lowest ratio Volts protection core metering core 27 Max magnetising M R M R current guaranteed at knee point voltage amp the lowest ratio mA 8 Max resistance of M R secondary winding at 75 and at lowest ratio ohms 6 5 145kV Class Voltage Transformer Dco rc MILIUM DL DN S EE TIE Rated voltage levels _ 145 kV carrier frequency range 4 Rated total 6600 10 5 capacitance over the entire carrier frequency range entire carrier frequency range or temperature range ohms conductance of low voltage terminal over the entire capacitance 10 Purpose Class of accuracy EE MRNA Son 15 minute power frequency withstand voltage betwe
97. page distance Between line terminal and ground Between terminals with CB open terminals win Isolator De Bus coupler Transformer bay Line bay and 2MHz in all positions Tota closing time J vn mechanism Reclosing Number of closing coils Number of tripping coils Number of auxiliary contacts for Schedule A Requirements Rated lightning impulse withstand voltage 650 kV 650 kV peak 750 kV P 2000 A 1250 1250 at 92 kV rms _ Not mc more than 150 ms phase auto reclosing 42 Eoo withstand volage n First pole tc to clear factor UA CUI Rated sot creat MEM Making Breaking Middle positon Protection class Type 1 Min 12 Min 12 0 36kV Class CircuitBreakers 0000 Outdoor type VCB and Indoor type VCB for Nrasindhi EG 62271 100 135 90 E 701 u peak A ee 25kAms 000 inc EN UNE Schedule A Requirements energy Number of tripping coils 000000002000 17 _ Number of auxiliary contacts for Making Min 8 Breaking Min 8 Middle position 0 Protection class IP55 0 941 145kV Class Disconnector and Earthing Switch 0 1 Type Outdoor
98. pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transmission line bays 5 2 1 Two 2 sets of 145kV 2000 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch for bus coupler 5 2 2 Six 6 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 5 2 3 Eight 8 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors without earthing switch 5 2 4 Eight 8 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL single break post type motor operated disconnectors without earthing switch series type 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus coupler bay 2000 14 Schedule A Requirements 2 Twelve 12 of single phase 4 core multi ratio 145kV 31 5kA 1sec 5 2 650kVp BIL post type current transformer for line bays 5 4 Twelve 12 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT SAS Twelve 12 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 6 Six 6 nos singl
99. pply and installation of earthing system and lightning protection screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations Schedule A Requirements 4F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 4G Batteries Chargers and DC Distribution 461 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 100 batteries complete each capacity shall not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75A rating One 1 set of DC distribution board The DC distribution board shall be with 50 overall spare switches for future use d 2 sets of online UPS 3kVA for Substation Automation system panels 4G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supply The system shall generally be as shown in bid drawing and sh
100. programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 33 0 415 kV station auxiliary transformer feeder circuits For each feeder minimum two meters main amp check The system and requirements shall generally be as shown in Bid drawing and technical specification of Volume 2 and shall include one 125A outdoor weatherproof 3 phase with neutral and earth switched socket outlet and plug as per IEC 309 to be installed cabled and connected adjacent to the auxiliary transformers 11 Civil Works Building and Foundation 111 Complete earth filling by imported carried earth free from foreign solid particles organic materials in addition to the earth recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 60 800 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 112 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads cable trenches septic tank soak way surfacing gravel laying drainage security fences boundary wall sentry post guard house car port etc 113 One 1 lot of complete des
101. r etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 4M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedule B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be provided The materials shall have to be handed over to the designated store as per instruction of the Engineer 5 Extension amp Renovation of existing 132 33kV AIS Substation at Chandroghona The equipment to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 5A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 5 1 1 One 1 set of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for bus coupler 5 1 2 Four 4 sets of 145kV 1250 31 5kA 1sec 50Hz 650kVp BIL live tank type single
102. rating for 1 sece 25kA E 13 Three phase symmetrical fault OKA
103. ration C 10 to 50 Transport and storage C 10 to 50 Relative humidity Operating max min 93 z Transport and storage 93 12 control mimic aa Control of breaker as well as all isolators earthing Switch Control functionality should not be affected if bay Yes controller fails Key Locked Yes Interlock override function Yes Separate backup control mimic provided for each Yes bay amp feeder Exchange of display First reaction lt 15 Presentation of a binary change in the process 0 55 _ display p Presentation of an analogue change in the process 058 From order to process output lt 155 From order to updated of display APPENDIX 8 SCHEDULE OF TECHNICAL REQUIREMENTS OF FIBRE OPTIC MULTIPLEXER EQUIPMENT Available TRUNK INTERFACES HDB3 2 Mbit s interfaces per module 22 Complying to ITU T rec G 703 transparent o selectable 3 3 HDSL 2Mbit s interface no of copper 4 2 wires 30 15 A Capacity on 2Mbit s or on 1Mbit s ILE 30 2 pairs Capacity selectable 30 1 pair m A5oo M 4 1 3 Analogue 2wire with E amp M Input level Output level Digital 2Mbit s CAS or PRI Voice interfaces for remote s
104. re to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 101 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out Mandatory Spares Maintenance tools amp Test Equipment Supply of complete mandatory spare and spare parts of transformer switchgear control equipment protection relays meters maintenance tools amp test equipment The materials shall have to be handed over to the designated store as per instruction of the Engineer 4 Sunamganj 132 33kV AIS Substation Sunamganj is situated at the north east region and about 290km away from the capital city Dhaka The configuration of the 132kV busbar shall be double busbar scheme Switchyard layout shall be designed such as to accommodate double bus U type configuration 132kV Air Insulated Switchgears AIS 132kV AIS switchyard for one 1 132kV overhead line bays in order to connect one 132kV single circuit overhead line Chatak 1 two 2 132 33kV transformer bays for two sets of 132 33kV 25 41 thr
105. recovered from digging of foundation to make the top of the final ground level of substation 0 5m high from highest flood level and final compaction to be achieved 95 for total volume 50 600 cubic meter The volume of earth filling may be varied but the payment shall be as per actual measurement of work done 212 One 1 lot of complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads cable trenches septic tank soak way surfacing gravel laying drainage security fences boundary wall sentry post guard house car port etc 213 One 1 lot of complete design supply and construction of all civil items and facilities required for the two storied main control building including cable basement 2J Lighting Small Power Air Conditioning and Ventilation 2J1 One 1 lot of complete design supply installation and commissioning of equipment to provide lighting LV power supply air conditioning system ventilation system and emergency DC lighting for the main control building Schedule A Requirements 2J2 One 1 lot of complete set of design supply installation and commissioning of equipment to provide lighting flood light LED type for security roadway switchyard and emergency DC lighting at strategic locations for equipment operation and inspection 2K Fibre Opti
106. ribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 3L SCADA system for Telecontrol and Telemetering 3L1 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Gateway of the substation automation system All HV breakers motorized disconnectors tap changer etc shall be controlled form NLDC through the Gateway of the substation automation system using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out 3M Mandatory Spares Erection amp Test Equipment Supply of complete spares and spare parts of transformer switchgear control equipment protection relays meters erection amp test equipment as per quantity mentioned in Schedule B Test equipment are to be supplied from Europe USA or Japan origin Printed catalogue operation and service manual are to be Schedule A Requirements provided The materials shall have to be handed over to the designated store as per instruction of the Engineer 4 Sunamganj 132 33kV AIS Substation The equipment to be
107. s are comprising of 1D1 Control Protection Metering amp Substation Automation System including event recording function for four 4 sets of overhead line circuits to Chandroghona Chandroghona 1 amp 2 and Khagrachori Khagrachori 1 amp 2 1D2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of 132 33 kV power transformer circuits including transformer tap changer control 1D3 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit 1D4 Busbar protection system for complete 132kV bus one 1 lot 1D5 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for four 4 132 kV line and two 2 transformer feeder For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of 1D5 Control Protection Metering amp Substation Automation System including event recording function for two sets of power transformer circuits 1D6 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters
108. s coupler bay Space provision with busbar gantry structure amp switchyard finished surface without equipment is to be kept for extension of two 2 future 132kV line bays one 1 future transformer bay 132kV Side 33kV Air Insulated Switches and Connection 33kV AIS switchyard single bus configuration and switches for two 2 LV side of 132 33kV power transformer bays and two 2 33 415kV aux transformer bays in order to facilitate station power supply 132 33kV three phase power transformer Two 2 sets of 25 41 132 33kV three phase power transformers 33 0 415kV auxiliary transformer Two 2 sets of 33 0 415kV 200kVA outdoor type auxiliary transformers to supply the substation auxiliary loads Control Protection Substation Automation amp Metering Associated control metering protection equipment synchronizing scheme and substation automation system for complete substation Fibre Optic Multiplexer Equipment for Communication and Protection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Complete set of 110V DC amp 48V DC and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set Land Development Civil Works Building and Foundation Schedu
109. shall be renovated internally with all civil items and facilities as required including placing of new floor tiles SCADA system for Telecontrol and Telemetering Complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of four 4 new 132kV line bays amp 132kV transformer bay required electrical signals shall be transmitted to the NLDC through the Remote terminal units RTU All HV breakers motorized disconnectors etc shall be controlled form NLDC through the remote terminal units RTU using IEC 60870 5 104 protocol All necessary modification works in the software of master station of NLDC are to be carried out The existing RTUs are AREVA France made MiCOM C264 type Mandatory Spares Maintenance tools amp Test Equipment Supply of complete mandatory spare and spare parts of transformer switchgear control equipment protection relays meters maintenance tools amp test equipment The Schedule A Requirements materials shall have to be handed over to the designated store as per instruction of the Engineer 7 Extension of existing 132 33kV AIS Substation at Brahamanbaria Brahamanbaria is situated at the south east side about 140km away from the capital city Dhaka The configuration of the existing 132kV busbar is main amp
110. six nos for bus 6A10 5 Relocation of existing nine 9 nos Single phase 120kV lightning arrestors with all associated accessories 6A10 6 Dismantle of existing seven 7 sets of disconnector switch with all associated accessories and handing over to the store eB 33kV Air Insulated Switches and Connection for Auxiliary Transformers The 33kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 6B1 Two 2 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL outdoor Vacuum Circuit Breakers VCB with spring stored energy operating mechanism 6B2 Five 5 sets of 36kV 2000A 25kA 1sec 50Hz 170kVp BIL single vertical break post type disconnectors 6B3 Six 6 nos of single phase 3 core multi ratio 36kV 25kA 1sec 50Hz 170kVp BIL post type current transformer 6 4 9 nos of single phase 2 36kV 25kA 1sec 50Hz 650kVp BIL voltage transformers Schedule A Requirements 6B5 Twelve 12 nos of 30kV rated voltage 10kA nominal discharge current 50Hz Heavy duty station class single phase surge arresters 6B6 1 One 1 lot of flexible conductors for busbar jackbus jumper equipment connections ACSR Twin Fince 1113 including all necessary clamps amp connectors required for completing 33kV busbar and switchgear connection 6B6 2 XLPE insulated single core 50
111. spection 4K Fibre Optic Multiplexer Equipment for Communication and Protection 4 1 The equipment to be supplied installed and commissioned shall be as shown on bid drawing One 1 lot complete set of design supply installation and commissioning of fibre optic multiplexer equipment including necessary works to interface with existing system is to be provided for 87 or 21 relay for each transmission line protection through fibre cores 21 relay carrier signal main and back up SCADA data from switchgear and control system Hot line telephone system 4K2 Underground optical fibre cables 24cores for 132kV switchyard from terminal box gantry structure at each 132kV double circuit transmission line termination point to MDF Main distribution Frame to be installed in control room The Contract includes supply and installation of MDF and pigtail cables with adequate length 4L SCADA system for Telecontrol and Telemetering 4111 One 1 lot of complete design supply delivery installation testing amp commissioning of hardware and software to provide the telecontrol amp telemetering facilities required at the existing National Load Despatch Center NLDC at Rampura for integration of complete new 132 33kV substation All required electrical signals shall be transmitted to the NLDC through the Industrial Schedule A Requirements Gateway of the substation automation system All HV breakers motorized disconnectors tap change
112. st type disconnectors 3B3 Six 6 nos of single phase 3 core multi ratio 36kV 25kA 1sec 50Hz 170kVp BIL post type current transformer 3B4 Twelve 12 nos of single phase 2 core 36kV 25kA 1sec 50Hz 650kVp BIL voltage transformers 3B5 Twelve 12 nos of 30kV rated voltage 10kA nominal discharge current 50Hz Heavy duty station class single phase surge arresters 3B6 One 1 lot of flexible conductors for busbar jackbus jumper equipment connections ACSR Twin Finch 1113 including all necessary clamps amp connectors required for completing 33kV busbar and switchgear connection 3B7 One 1 lot of insulators and fittings including all necessary accessories required to complete 33kV switchyard 3B8 One 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required for completing 33kV switchyard 3C Power Transformers amp Earthing Auxiliary Transformers 3C1 Two 2 sets of 132 33kV 25 41 MVA three phase outdoor type power transformers with associated bushing CTs all necessary connections insulators amp fittings 3C2 Two 2 sets 33 0 415kV 200kVA three phase outdoor type station auxiliary transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 3D Control Protection Substation Automation amp Metering
113. steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required for completing 33kV switchyard 4C Power Transformers amp Earthing Auxiliary Transformers 4C1 Two 2 sets of 132 33kV 25 41 MVA three phase outdoor type power transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings Schedule A Requirements 4C2 Two 2 sets 33 0 415kV 200kVA three phase outdoor type station auxiliary transformers with associated bushing CTs and steel support structures including all necessary connections insulators amp fittings 4D Control Protection Substation Automation amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 4D1 Control Protection Metering amp Substation Automation System including event recording function for One 1 set of overhead line circuits to Chatak Chatak 1 4D2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of 132 33 kV power transformer circuits including transformer tap changer control 4D3 Control Protection metering amp Substation Automation System including event recording function for one 1 set of bus coupler circuit 4D4 Deleted 4D5 Tariff metering panel
114. t earthing switch 4A3 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus coupler bay 2000 14 4A3 2 Three 3 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 4A3 3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for Transformer bays 4A4 1 Nine 9 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 4A4 2 Six 6 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL inductive voltage transformers IVT Schedule A Requirements 4A5 Nine 9 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 4A6 Three 3 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections 4A7 One 1 lot of flexible conductors for busbar ACSR Twin Fince 1113 MCM amp jackbus jumper equipment connections ACSR Grosbeak 636 including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection 4A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 132kV switchyard 4A9 On
115. t to be designed supplied installed tested amp commissioned as stipulated in bid specification and shown in bid drawings Item Description 2A 145kV Air Insulated Switchgear AIS The 145kV AIS shall comply with the particular requirements as detailed in the Schedule of Technical Requirements included as Appendix A1 to this section and bid drawings shall comprise the following 2 1 1 One 1 set of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for bus coupler 2A1 2 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type gang operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transformer bays 2A1 3 Two 2 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL live tank type single pole operated SF6 gas circuit breaker with spring stored energy operating mechanism for Transsmission line bays Schedule A Requirements 2A2 1 Two 2 sets of 145kV 2000A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch for bus coupler 2A2 2 Four 4 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors with manual earthing switch 2A2 3 Eight 8 sets of 145kV 1250A 31 5kA 1sec 50Hz 650kVp BIL double side break post type motor operated disconnectors without ear
116. t type support insulators required for completing 145kV busbar and switchgear connections One 1 lot of flexible conductors for busbar ACSR Twin 1113 amp jackbus jumper equipment connections ACSR Single Grosbeak 636 including all necessary clamps amp connectors required for extension of busbar to accommodate two line bays 8A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 145kV switchyard 8A9 1 lot of steel structures for gantry and equipment supports including nuts amp bolts and cable tray including all necessary fitting amp fixing accessories required to complete 145kV switchyard 8D Control Protection amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of 8D1 Control Protection amp Metering for two 2 sets of overhead line circuits for two new line bays Schedule A Requirements 8D2 Extension of existing Busbar protection system to accommodate two line bays one 1 lot 8D3 Tariff metering to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two 2 132kV line For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 8E Multic
117. tection Indoor type Fibre Optic Multiplexer and communication Equipment for protection amp communication and integration with existing communication network of PGCB DC and LVAC System Replacement of existing DCDB system by a complete new set of 110V amp 48V DC system and LVAC system with all necessary materials required for the plant being installed with 5096 spares for future use The system shall be comprises with a backup standby set Land Development Civil Works Building and Foundation Complete design supply and construction of all civil items required for land development filling by carried earth for new area to be extended under this turnkey bid Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations transformer foundations blast walls oil pit entrance amp internal roads outdoor lighting system cable trenches septic tank surfacing drainage security fences guard house earthing amp lightning protection switchyard lighting etc Complete design supply and construction of all civil items required for the outdoor works suitable for switchyard gantry amp equipment foundations cable trenches surfacing drainage outdoor lighting system security fences including earthing amp lightning protection switchyard lighting etc to accommodate new bays and renovation of existing bays The existing control room building
118. th all associated accessories 5 10 4 Dismantle of existing ten 10 sets of disconnector switch with all associated accessories and handing over to the store 5A10 5 Interim arrangement for transformer bay to reduce outage by temporary shifting the existing transformer to the new bus tie bay with all associated HV LV amp secondary connections one 1 lot 5A10 6 Interim arrangement for line bay to reduce outage by temporary shifting the existing line to the new bus tie or any other bay and re shifting to final bay location with all associated HV amp secondary connections 1 lot 5D Control Protection Substation Automation amp Metering 132 kV Circuits The equipment to be designed supplied installed and commissioned is shown in bid drawings are comprising of Schedule A Requirements 501 1 Control Protection Metering amp Substation Automation System including event recording function for four 4 sets of overhead line circuits for four new line bays 501 2 Control Protection Metering amp Substation Automation System including event recording function for two 2 sets of existing overhead line circuits The existing panels of two line bays shall be replaced by new sets and the recovered panels with all associated materials are to be handed over to the store 502 Control Protection Metering amp Substation Automation System including event recording function and transformer tap changer control for two 2 sets
119. the software of master station of NLDC are to be carried out Schedule A Requirements APPENDIX A1 SCHEDULE OF TECHNICAL REQUIREMENTS OF 132kV and 33kV AIR INSULATED SWITCHGEAR AIS SI Description Unit 132kV 33kV 1 Site Condition Nominal system Voltage ated Voltage eoo em SRC mee eee Rated Frequency A 50 50 nsulation Level lightning impulse withstand switching impulse withstand 50 Hz withstand 1 minute Rated continuous current at 40 C ambient temperature 4 __ main busbar and bus coupler 2 _ctransformerbay Ee line bay ated short time withstand 0 Rated peak withstand current CN dn M uu eL EPI T Auxiliary voltage for control and signal 110 for remote control Vdc 110 for heating Mae 415240 2 2 tolerances 15 10 4 Circuit Breakers 41 145 Class Circuit Breakers Q 1 Type Outdoor SFe insulated live tank type Bong peu M 62271 400 d 45k Rated short duration power frequency withstand voltage 1 min Between line terminal and ground 275 kV rms Between terminals with CB open 275 kV rms Between terminals with isolator open 315 kV rms 47 Cree
120. thing switch 2A3 1 Six 6 nos of single phase 2 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for bus coupler bay 2000 1A 2A3 2 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for line bays 2A3 3 Six 6 nos of single phase 4 core multi ratio 145kV 31 5kA 1sec 50Hz 650kVp BIL post type current transformer for Transformer bays 2 4 1 Twelve 12 nos of single phase 2 145kV 31 5kA 1sec 50Hz 650kVp BIL Capacitor voltage transformers CVT 2A4 2 Six 6 nos of single phase 2 core 145kV 31 5kA 1sec 50Hz 650kVp BIL inductive voltage transformers IVT 2A5 Twelve 12 nos of 120kV rated voltage 102kV rms continuous operating voltage at 50 c 10kA nominal discharge current 50Hz Heavy duty station class gapless metal oxide type single phase surge arresters 2A6 Six 6 nos single phase 145kV post type support insulators required for completing 145kV busbar and switchgear connections 2 7 One 1 lot of flexible conductors for busbar ACSR Twin Finch 1113 MCM amp jackbus jumper equipment connections ACSR Single Grosbeak 636 including all necessary clamps amp connectors required for completing 145kV busbar and switchgear connection 2A8 One 1 lot of insulators and fittings including all necessary accessories required to complete 132kV switchyard 2 9 1 lot of stee
121. tion screen including connections connectors and clamps to suit the substation overall arrangement and provide supporting design calculations 6F2 One 1 set of 3 phase portable maintenance earthing equipment devices with connectors and telescopic glass fibre operating pole suitable for plant supplied 6G Batteries Chargers and DC Distribution 6G1 110V substation NiCad batteries complete with chargers and distribution switchboard to be supplied installed and commissioned to provide all DC supplies to equipment being supplied The existing Batteries Chargers and DC Distribution panels are to be replaced by the new sets and handed over to the store with all recovered materials The system shall generally be as shown in bid drawing and shall include a Two 2 sets of 100 batteries complete each capacity shall not be less than 250Ah at the 5 hour rate of discharge b Two 2 sets of battery chargers complete each charger shall not be less than 75A rating c One 1 set of DC distribution board The DC distribution board shall be with 50 overall spare switches for future use d 2 sets of online UPS 3kVA for Substation Automation system panels 6G2 48V DC system and distribution equipment complete with NiCad batteries chargers to be supplied installed and commissioned in the main control building for the new fibre optic multiplexer equipment for communication and protection One set shall be used as standby supp
122. to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for One 1 132kV line and two 2 transformer feeder For each feeder minimum two meters main amp check The scope of works also includes supply of software s amp connection cords of the above energy meters for future re configuration 33 kV Circuits The equipment to be supplied installed and commissioned is shown in bid drawings are comprising of 4D6 Control Protection Metering amp Substation Automation System including event recording function for two sets of power transformer circuits 4D7 Tariff metering panel to accommodate programmable amp recordable digital 3 phase 4 wire import and export MWh and MVArh meters accuracy class 0 2 for two transformer feeder circuits Power X former l amp Il For each feeder minimum two meters main amp check The scope of works also includes supply of software s of the above energy meters for future re configuration 4E Multicore Cables 4E1 One 1 lot complete set of multicore low voltage 0 6 1 1kV XLPE insulated power and control cables IEC 60502 shall be supplied installed glanded terminated and have individual cores identified to be used for connection of all equipment supplied under the Contract The overall substation cable routing and core schedules shall also be provided AF Earthing and Lightning Protection 4F1 One 1 lot of design su
123. ture Noise level Altitude Applicable Standard B TECHNICAL DATA A C INPUT Voltage Phase Frequency Input AC voltage variation Power factor Full range Efficiency Full load Charge Characteristics During float charge Current limitation D C OUTPUT Voltage Ripple Voltage Full load Charge modes 3 level Float Voltage adjustable Boost Voltage adjustable Schedule A Requirements Up to 98 45 C max 65 dB max 1000 m IEC or equivalent 415 Volts 3 Phase 50 5 Hz 5 0 8 85 Constant current Constant voltage 110 110 5 volt 396 Charge Float charge amp Boost charge 1 42 volt cell 1 53 volt cell APPENDIX A6 SCHEDULE OF TECHNICAL REQUIREMENTS OF 48 V BATERY CHARGERS Description A GENERAL Installation Indoor Rectifier type Thyristor controlled Rated D C voltage Rated output current Charging mode High Voltage Insulation Insulation resistance Cooling system Relative humidity Ambient temperature Noise level Altitude Applicable Standard B TECHNICAL DATA 48 V 5 50 Amps Both constant current amp constant voltage 1000 V AC for 1 minute between input to output and input to ground 10 MO with 500V DC for 1 minute Self amp natural air cooled Up to 98 45 C max 65 dB max 1000 m IEC or equivalent INPUT 1 Voltage 2 Phase 3 Frequency 4 Input AC v
124. ubscriber 43 Integrated teleprotection ne 4 3 1 Interface for Commands Transmission time max V 24 N 28 RS 232 up to 38 4kbit s V 11 X 24 5 422 64kbit s 4 4 4 V 35 64kbit s 4 4 7 Ethernet 10 100 BaseT WAN capacity Protocols Auxiliary power supply for ext contacts Ethernet IP or Ethernit OSI 1 A9 SCHEDULE OF TECHNICAL REQUIREMENTS OF OPERATIONAL TELEPHONE SYSTEM PABX z Nao 22 ERAL _ EAE Noa a ___ Analogue Trunk Con inectivity _ Digital Trunk Connectivity E1 T1 _ No of Subscribers 1 E amp M _ DiD Direct Inward Dial 22 Digital Trunk L E1 Trunk eis iot 28277 TCP IP H 323 T 38 Switching LT QoS Quality c of Signal 802 1 Loop Start Ground Start Via fe peripheral ISDN Connectivity using BRIPRI 1 _ 10 100 Mbps Ethernet IEEE 8023 ________ REQUIRED LIP PABX ES st 10 100 BaseT Ethernet Connection No Trunk Connectivity 000000000000
125. vated the contractor is also responsible to make drawings as required to complete the works The scope of work comprises the following DESCRIPTION OF WORKS The scope of work under this turnkey bid is design supply delivery installation testing amp commissioning of four new 132 33kV Air Insulated Switchgear AIS substation at Rangamati Khagrachari Bianibazar amp Sunamganj and extension renovation of existing 132 33kV substation at Chandroghona Narsingdi Brahmanbaria Mymensingh RPCL Tangail and Chatak substations Schedule A Requirements The scope of work also includes design supply delivery installation testing amp commissioning of 132 33kV power transformer and associated control automation protection fiber optic multiplexer equipment for communication amp protection and civil works 1 Rangamati 132 33kV AIS Substation Rangamati is situated at the south east hilly region and about 80km away from the main sea port Chittagong The configuration of the 132kV busbar shall be double busbar scheme Switchyard layout shall be designed such as to accommodate double bus U type configuration 132kV Air Insulated Switchgears AIS 132kV AIS switchyard for four 4 132kV overhead line bays in order to connect two 132kV double circuit overhead line Chandragona 1 amp 2 and Khagrachori 1 amp 2 two 2 132 33kV transformer bays for two sets of 132 33kV 25 41MVA three phase transformers one 1 bu

Vol-3-SS-Part-1 3626

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