Ring Main Unit
Contents
1. 1400 1400 21 Quality assurance Certified quality STL The Short Circuit Testing Liaison KERI ISO 9001 ISO 14001 LSIS has integrated a functional organization into each of its units the main purpose of vvhich is to check quality and ensure the adherence to standards Routine quality check VVhile producing Susol RMU various routine tests are taken for product capacity Tested items are as shovvn follovvs e Filling pressure check Tightness check e Manual and motor operation check Dielectric check e Contact resistance check Ordering nformation Operation Rated Voltage Code Rated Current DIN Type Bushing D LFL Manual B Main T OFF 125kV B L LCL AC 110V At 630 630A 66 95kV B L LLL AC 220V A2 630 400A 64 75kV BIL LLLL DC 110V D1 630 200A 62 LCCL DC 220V D2 630 A 60 LFFL LLCL LLFL 22 Green Innovators of Innovation e For your safety please read user s manual thoroughly before operating Contact the nearest authorized service facility for examination repair or adjustment e Please contact a qualified service technician when you need maintenance Do not disassemble or repair by yourself Safety Instructions e Any maintenance and inspection shall be performed by the personnel having expertise concerned LSIS Co Ltd 2012 10 LSIS Co Ltd All rights reserved2. Innovation SFs Gas Insulated Ring Main Unit f Susol RMU A Compact switchgear solution for secondary power distribution networks Super Solution Ring Main Unit LS Ring Main Unit The best solution for Power Distribution Contents Features Configurations intelligent application Main characteristics Doetailed characteristics for each Optional components Operational sequence KOVENEE s Susol RMU A Compact Switchgear Solution for Secondary Distribution Ring Main Unit Up to 24kV SFs Insulated Susol RMU is enable to install on medium voltage distribution network and mainly used for protection of transformers in compact substations It is used for medium voltage distribution in compact substations small buildings residential housing complex large shopping malls airports wind power etc comprising medium voltage networks The concept of Susol RMU is offering a choice of other switch fuse combination or circuit breaker with relay for protection of the transformer z 13 14 14 Susol RMU is a compact ring main unit combining all MV functional units to enable to supply and protect transformers on the secondary distribution network Susol RMU can be supplied in various and different configurations suitable for most Switching applications in 12 17 5 24 kV distribution networks e Metal en
3. SHT coil for CB SHT is a control device which trips a circuit breaker from remote place when applying voltage continuously or instantaneously over 200ms to coil terminals Closing coil for CB It is a control device which closes a circuit breaker when the voltage is applied continuously or instantaneously over 200ms to the coil terminals is 6 MTD Magnetic Tripping Device l j li is a control device which trips a circuit breaker from the OCR when the short circuit current or overload current occurred Tripping time could be set by the OCR t settings Auxiliary switch for CB It is a contact used to monitor ON OFF position of circuit breaker from remote place Standard ON charge 5a5b Standard OFF charge 5a5b Geared motor for CB Charge the closing spring of a circuit breaker by the external power source Without the external power source charge manually Operating voltage range 856 110 Vn 17 Optional components Susol Optional components for LBS F LBS mechanism LBS Mechanism F LBS Mechanism Auxiliary switch for LBS F LBS It is a contact used to monitor ON OFF position of Load break switch fuse combination switch from remote place Standard ON OFF EARTH for each position Geared motor for LBS mech Charge the closing and opening spring of a load break switch by the external power source Without the external power source charge source manually Operating voltage range
4. 85 110 Vn Geared motor for F LBS mech Charge the closing spring of a fuse combination switch by the external power source Without the external power source charge manually source source manually Operating voltage range 85 110 Vn SHT coil for F LBS mech SHT is a control device which trips a fuse combination switch from remote place when applying voltage continuously or instantaneously place over 200ms to coil terminals 18 Susol CB Trip alarm contact e When a circuit breaker is tripped by OCR which operates against the fault current Over Current Relay Trip Alarm switch provides the information regarding the trip of circuit breaker by sending the electrical signal from the mechanical indicator on main cover of main circuit breaker or internal auxiliary switch Installed at the inside of circuit breaker e When a circuit breaker is tripped by fault current a mechanical trip indicator MRB Manual Reset Button pops out from the main cover and the svvitch AL which sends control signal electrically is conducted to output the information occurred from fault circuit breaker e MRB and AL can be operated only when tripped by OCR but doesn t be operated by Off button and OFF operation of trip coil e To re close a circuit breaker after a trip press MRB to reset it for closing 2pcs of electrical trip switch AL1 AL2 1a are provided Option e Trip alarm contact and MRB Manual reset button need to be p
5. 189 e mail baijh lsis com cn e LSIS Beijing Office gt gt Beijing China Address B Tower 17FL Beijing Global Trade Center B D No 36 BeiSanHuanDong Lu DongCheng District Beijing 100013 P R China Tel 86 10 5825 6025 7 Fax 86 10 5825 6026 e mail sunmj lsis com cn e LSIS Guangzhou Office gt gt Guangzhou China Address Room 1403 14 F New Poly Tower No 2 Zhongshan Liu Road Guangzhou 510180 P R China Tel 020 8326 6754 Fax 020 8326 6287 e mail chenxs lsis com cn e LSIS Chengdu Office gt gt Chengdu China Address Room 1701 17Floor huamin hanjun internationnal Building No1 Fuxing Road Chengdu 610016 P R China Tel 86 28 8670 3201 Fax 86 28 8670 3203 e mail yangcf sis com cn e LSIS Qingdao Office gt gt Qingdao China Address Room 2001 20 F 7B40 Galaxy Building No 29 Shandong Road Shinan District Qingdao 266071 P R China Tel 86 532 8501 6058 Fax 86 532 8501 6057 e mail wangzy lsis com cn e LSIS NETHERLANDS Co Ltd gt gt Schiphol Rijk Netherlands Address 1st Floor Tupoleviaan 48 1119NZ Schiphol Rijk The Netherlands Tel 31 20 654 1420 Fax 31 20 654 1429 e mail junshickp sis biz Specifications in this catalog are subject to change without notice due to LSIS Gurgaon Office gt Gurgaon India continuous product development and improvement Address 109 First Floor Park Central Sector 30 Gurgaon 122 002 Haryana India e mail hwyim lsis biz 2012 10 Susol Ring Main Unit E 2012 10 01
6. 2012 10 Printed in Korea STAFF
7. 55 Closing start Closing signal finish Motor charging start Opening start Opening operation finish On of _ III 5 CLOSING OPENING SPRING ne 06 000 MOTOR MAIN CONTACTS o i 1 Closing time Opening time Operational sequence for F LBS Closing operation finish Closing start Opening signal Opening start Closing signal Motor charging start Opening operation finish ee MOTOR On r LE iii 5522 CLOSING SPRING Charging Discharging OPENING SPRING Charging 1 2X55 UU TY Discharging SHUNT COIL On _N Off MAIN CONTACTS 20 Closing time Opening time Dimensions Susol LCL 2L1C 950 Mounting hole 4 018 5 Le 17 are Ar Er m LFL 2L1F 950 Mounting hole 4 018
8. LLL 3L LLLL 4L ae 1 tt Hr fF HS HS HI HS HS H HS 1030 X 1400 X 752 LLLLL 5L 7 n ay n en H H H HS 1030 X 1400 X 752 3 Transformer protection by circuit breakers LCCL 2L2C 88401 K l 1390 X 1400 X 752 L HS LLCL 3L1C 1720 X 1400 X 752 LLCCL 3L2C 755 x 1400 X 752 1450 1400 752 4 Transformer protection by fuses LF 1L1F T f r LFFL 2L2F ir T 1T r T T H 1390 X 1400 X 752 LLFL 3L1F 1780 X 1400 X 752 LLFFL 3L2F x rr rr T y r r 11 TIF i He H HS 755 X 1400 X 752 1500 X 1400 X 752 1360 X 1400 X 752 1830 X 1400 X 752 11 Load Break Svvitch Rating Rated voltage kV 12 17 5 24 Rated freguency Hz 50 60 50 60 50 60 Rated povver frequency vvithstand voltage kV 28 38 50 Rated lightning impulse vvithstand voltage kV 75 95 125 Rated current A 630 630 630 Rated short time vvithstand current 3s kA 21 21 21 Rated short circuit making current kA 54 6 54 6 54 6 Electrical endurance class E3 E3 E3 Mechanical endurance class M1 M1 M1 Earthing switch Rated short time withstand current 35 kA 21 21 21 Rated short circuit making current kA 54 6 54 6 54 6 Electrical endurance class E1 E1 E1 Mechanical endurance class M1 M1 M1 M1 1 000 Mechanocal Operations Stan
9. ay is self povvered relay by the CT in Susol RMU and can be set with definite time and inverse time characteristics for short circuit overload and earth fault current Parameter setting can be done in different user friendly ways computer controlled or with HEX switches on the front The relay is also provided vvith a digital memory for the storage of the most recent tripping values This relay has proven to be a reliable and vvidely accepted method of protection ULU Max system voltage kV 0 6 Primary current A 7 2 230 4 e Secondary current A 0 075 Rated burden VA 0 1 Accuracy class 10P80 Short time current KA 1s 20 Rated frequency Hz 50 60 Voltage indicator lamps Voltage Detector It is a device to check the presence or absence of voltage in the cables t is conforming to IEC standard 61958 Push button type LED voltage indicator is provided and lamp povver is supplied by bushing type capacitive dividers 15 Optional components Povver Fuse Features 1 The LS HRC Power Fuses belong to the PRIME MEC series t interrupts high currents before the peak value and therefore cuts dovvn the required vvithstand capacity of the associated equipment on the electric system 2 Though small in size it has a high breaking capacity and its enclosed type is suitable for use inside of the panel board 3 PRIME MEC fuses are eguipped with striker pins for trip indicators as w
10. closed unit for Indoor installation and type tested e Insulated by SFe Gas e Maintenance free and easy installation e Independent of climate e ON OFF Earth three position load break switch e Recyclable materials used e Approachable and operable safely in the presence of power in the cables e Clear indication of operation status via mimic diagram on front panel Fully automatic interlocking system Operation is only possible in case door is totally closed Fuse compartment is only accessible when Load break Switch is earthed Voltage detector to check whether cables are lined or not e Rupture disk is designed to protect devices in case of emergency like gas expansion e Internal arc withstand is tested for the operator safety in case of accident current occur 21kA 1s without SFe Gas LCL type Metal enclosed tank is hermetically sealed it means this is independent of environmental effects such as dirt small insects moisture and so on Load break switch operating is possible in the front of Ring Main Unit e All switching operations can be made safely to personnel because of interlocking system that operates automatically according to the svvitch position by the operator e No requirement of recharging SFe gas until its service life e Remote operation available in case of using motor operating mechanism and FRTU e HRC power fuse will trip the mechanism automatically by a fuse striker pin c
11. dard features e Three position load break switch with disconnector and earthing switch e Operating mechanism with two separate shaft for load and earthing function e Switch position indication for LBS and ES e Cable bushing horizontal in front with integrated capacitor for voltage indication Optional features e Motor operation for load break switch e Auxiliary switches Load break switch position Earthing switch position e Voltage indicating system e Short circuit and earth fault indicator Operation of 3 Position Load Break Switch Main close Circuit Breaker Rating Rated voltage kV 12 17 5 24 Rated freguency Hz 50 60 50 60 50 60 Rated power freguency withstand voltage kV 28 38 50 Rated lightning impulse withstand voltage kV 75 95 125 Rated current A 200 630 200 630 200 630 Rated short time vvithstand current 3s kA 21 21 21 Rated short circuit making current kA 54 6 54 6 54 6 Electrical endurance class E2 E2 E2 Mechanical endurance class M1 M1 M1 Disconnector and Earthing svvitch Rated current A 630 630 630 Rated short time vvithstand current 3s kA 21 21 21 Rated short circuit making current kA 54 6 54 6 54 6 Electrical endurance class E1 E1 E1 Mechanical endurance class M1 M1 M1 M1 2 000 Mechanocal Operations B s o ee Standard features Optional features e 200 A vacuum circuit breaker for tran
12. ell as for inflicting impulse to trip link of related load break switches Selection of fuses According to IEC 60787 24kV Transformer rating capacity KVA Power Fuse rated current A 36 75 5 75 157 10 172 358 20 258 538 30 464 965 40 598 1246 50 745 1554 63 1000 1983 75 Note Please ask fuse maker for optimum selection of fuses Povver fuse characteristic curve Cut off characteristic Pre arcing time current characteristics 1000 800 5A 200A 600 600 2 31 L L H V s 10 RY PAW AA 200 200 20A t 125A m 100 30A ui 100A 80 200A 80 I 60 160A 60 40A 75A 1 2 125A 50a 63A 57 100A 7 r 5 75A 1 III 10 4 E 1 63A 8 6 amp 1 e 40 o i o 30A S oe e 1 z 20A 2 1 104 1 iv 0 8 5 o 06 Q 06 04 O 0 4 T 02 02 01 01 0 08 0 08 0 06 0 06 0 04 0 04 0 02 0 02 0 01 0 01 S 88 59 SSS 2 ns 8 27 7 5 575575 0 Prospective breaking current rms kA Prospective breaking current rms A 16 Optional components Susol Optional components for CB mechanism CB Mechanism 1 4 2 3
13. gh voltage svvitchgear and controlgear IEC 62271 200 Part 200 AC metal enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV IEC 62271 100 IEC 62271 102 IEC 62271 103 IEC 62271 105 Environment conditions LFL type Conditions Description The cubicles must be stored and installed in a dry area free from dust and with limited temperature variations Temperatures For stocking from 40 C to 60 C For working from 25 C to 40 C Other temperature consult us Altitude Altitude for installation above sea level under 1 000 m Humidity Relative humidity max 95 96 Additional information Conditions Description Manometer VIS Voltage Indication Systems All cable covers with interlock system Fuse cover with interlock system nternal arc exhausting box for 21kA 1s Remote operating system for Load break switch Remote operating system for fuse combination switch Remote operating system for circuit breaker OCR Over Current Relay operating Circuit breaker Padlock system key locking devices Protection index IP3X on front face IP67 for SFe tank Global options User options 10 Susol Types and diagrams 1 standard type LFL 2L1F e ir 42 H H Dimension W x H x mm LCL 2L1C 1030 X 1400 X 752 2 Load break switch combinations
14. h Diagram standard types LCL 2L1C LFL 2L1F Fuse type RMU LFL LFL model of Susol RMU offers the solution of transformer protection by fuses e L LBS Load Break Switch Three position Load Break Switch below 630A with disconnecting and earthing switch e F Switch Fuse Load Break Switch Fuse combination 2 200A svvitch fuse combination for transformer 3 protection e Cable bushing horizontal in front 4 J Ring S W Earth operation 5 T off operation Ring S W operation 7 Pressure gauge Voltage Indicator 8 Cable compartment Fuse compartment Name plate ii 2 intelligent application Equipped vvith RTU Remote Terminal Unit the Susol RMU svvitchgear can implement intelligent application Connecting all Susol RMU vvith communication netvvork it enables to monitor and control the svvitchgear remotely a e RTU Remote Terminal Unit The Remote Terminal Unit RTU collects data from field instruments 8 sensors and transmits the information to the Supervisory Control and Data System SCADA installed in a central control room through Acquisitio communication systems and lines and receives control commands from the trol system to conduct online controls in real time telemeter te ws Network rel or DAS SCADA Eguipped with the Susol RMU switct i ment in nt api yn C t
15. ing all nable to monito d contr vitchgea d ate fault e affe 1 of blackout and r Quality b Control Center l Server Dispatcher MMI Printer Hard Copier RMU with RTU RTU Small Customer Substaion Power Plant RMU with RTU Main characteristics Rating Rated voltage kV 12 17 5 24 Rated frequency Hz 50 60 50 60 50 60 Rated povver frequency vvithstand voltage kV 28 38 50 Rated lightning impulse vvithstand voltage kV 75 95 125 Rated current main busbars A 630 630 630 Rated short time withstand current 3s kA 21 21 21 Rated short circuit making current kA 54 6 54 6 54 6 Internal arc fault current 1s AFAL kA 21 21 21 Rated SFs gas pressure Psi G 5 5 5 Standards LCL type Susol RMU meets international standards such as following Standard Description IEC 62271 1 High voltage svvitchgear and controlgear Part 1 Common specifications High voltage svvitchgear and controlgear Part 100 Alternating current circuit breakers High voltage svvitchgear and controlgear Part 102 Alternating current disconnectors and earthing switches High voltage svvitchgear and controlgear Part 103 Switches for rated voltages above 1 kV up to and including 52 kV High voltage svvitchgear and controlgear Part 105 Alternating current svvitch fuse combinations Hi
16. onnected to mechanism in the event of fault happening e No maintenance is required other than replacement of HRC Power Fuse after installation e Compact design that requires minimum space to install and operate locally is main advantage especially where the space is limited No additional costs for replacement because of long service life Materials can be recycled after the end of its service life LFL type CB type RMU LCL Susol RMU offers a choice of solutions to make 2 3 or 4 directional connections with line protection by 630A CB with network switching by svvitch disconnectors with integrated power supply telecontrol device e L LBS Load Break Switch Three position Load Break Switch below 630A with disconnecting and earthing switch e C VCB Vacuum Circuit Breaker 200A vacuum circuit breaker for transformer protection 400 630A circuit breaker for feeder protection e Cable bushing horizontal in front Ring S W Earth operation Circuit Breaker operation Ring S W operation Pressure gauge Earth S W operation Name plate Voltage Indicator Disconnector S W operation Cable compartment x Gunu er 41 on figurations Information of model name L LBS Load Break Switch Load Break Switch No of LBS ace uu EOE F Load break switch Fuse combination No of F C system C Vacuum Circuit breaker with Disconnecting switc
17. sformer protection or 630 A vacuum circuit breaker for feeder protection e Three position disconnecting and earthing svvitch e Switch position indication for CB and DS ES e Cable bushing horizontal in front e Interlocking between CB and DS ES e Motor operation for circuit breaker e Auxiliary switches CB position Disconnector position Earthing switch position e Voltage indicating system e Trip coil and close coil Vacuum interrupter Current path In the closed position normal current flows through the interrupter When a fault occurs and interruption is required the contacts are quickly separated The arc drawn between the surfaces of contact is rapidly moved around the slotted contact surface by self induced magnetic effects preventing gross contact erosion on the high and the formation of hot spot on the surface The arc burns in an ionized metal current ARC vapor which condenses on the surrounding metal shield At current Zero the are ARC extinguishes and vapor production ceases The metal vapor plasma is very rapidly dispersed cooled recombined and deionized and the metal vapor products are quickly condensed so that the contacts withstand the transient recovery voltage Driving force x nm Switch fuse combination Rating Rated voltage kV 12 17 5 24 Rated frequency Hz 50 60 50 60 50 60 Rated power frequency withstand voltage kV 28 38 50 Rated lightning imp
18. ulse withstand voltage kV 75 95 125 Rated current A 200 200 200 Electrical endurance class E1 E1 E1 Mechanical endurance class M1 M1 M1 Earthing switch Rated short time withstand current 1s kA 5 5 5 Rated short circuit making current kA 13 13 13 Electrical endurance class E1 E1 E1 Mechanical endurance class M1 M1 M1 M1 1 000 Mechanocal Operations Standard features Optional features e Three position switch fuse e Motor operation for switch fuse P combination vvith earthing svvitch combination I T I e Switch position indication for switch e Auxiliary switches fuse combination and earth switch LBS position HK e Cable bushing horizontal in front Earthing svvitch position Fuse holder for DIN type fuse links Fuse blown status e Fuse link rating e Voltage indicating system 12 17 5kV max 100 A LSIS DIN e Trip coil type fuse link 24kV max 75 A LSIS DIN type fuse link e Automatically tripped to protect from fault current when a fuse is blown Cable compartment Screened body Inner screen Compressing lug Stress cone adapter Earthing eye and lead Theaded pin Rear plug with test point Test point Conductive end cap OMNOORWOND 14 Optional components VET impa ale M E an T La EJ in worldwide distribution networks bas oe 4 CT Current transformer 552 OCR Current Relay CT povvered protection relay This rel
19. urchased together MRB Manual Reset Button e t is a function which resets a circuit breaker manually when a circuit breaker is tripped by OCR e When a circuit breaker tripped by fault current a mechanical trip indicator MRB Manual Reset Button pops out from the main cover and the switch SDE which sends control signal electrically mu is conducted to ouput the information occurred from fault circuit breaker 5 i e MRB can be operated only by OCR but not by OFF operation of circuit breaker To re close a circuit breaker after a trip press MRB to reset it for closing EFI Earth fault indicator EFI can be installed at RMU frame or anywhere customer wants s e Single Phase AC supply split core type sensor e Automatic resetting function on 220 230V3Ph e 3Phase 19 Operational sequence Operational sequence for CB Closing start Closing operation finish Opening signal Closing signal Opening start Power ON Motor charging start 5s Opening operation finish MOTOR m maqla Discharging Charging gt Discharging CLOSING SPRING OPENING SPRING CLOSING COIL NL Opening time Closing time Operational sequence for LBS Opening signal Closing operation finish Motor charging start
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