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1. H 1B I 2 BATTERY 128MG100 F TOP FRONT E B HB 5 BA Y DIMENSIONS ENGTH 126mm H HEIC 2 Qmm H H H W 44 0kg PER MONOBLOC H E 8 FEMALE H H H ORQUE SETTING 5Nm 4 THESE CELLS CAN BE SUPPLIED WITH AN ADAPTOR KITS SO THAT E BATTERY CONNECTION BECOMES M6 AND NOT MB THIS BRACKET ROTATES THE CONNECTION THROUGH 90 DEGREES TRACED CHECKED APPROVED DATE CUSTOMER TILE SEE ORDER SPEC SITE MS LIMITED BATTERY LAYOUT FOR 2PS 12SMC100 F STSR GENERIC DRAWING SEE ORDER SPEC SS DESCRIPTION APPD DATE Western Power Distribution Client Project Nr 77PO 03
2. CUSTOMER SIEMENS T amp D HEBBURN SIT TRACED CHECKED APPROVED DATE VS LIMITED REET I OUS BRISTOL AR CONTRACT NUMB COLO 150551405 RAL 7 RATING 21 i 16 y U 4 J amp Q 10 WY hae ee al 2 Ve Ve NOTES 1 SLEEVE ALL CABLE CONNECTIONS ACCORDING TO THE NEITHER BR amp N VE H ERE E l i VE 2 NA Y POSITIVE 3LUE GREY b q
3. me Local communications Premises domestic school office GPRS PLC or mesh radio communications Substation LV Connection Manager DR elements ADSL internet access ee Communication cells i Figure 7 Overall Communications Architecture So La Bristol Functional Design Specification 25 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Domestic Home Bath University Data Zigbee Concentrator DC Sockets IT Tablet Distribution Substation Figure 8 Domestic Communications Detailed Architecture Table 3 is a quick reference communications guide listing the different types of devices hardware communication interface s protocol s used within this project It also cross references columns A H the communication connections between each device hardware type So La Bristol Functional Design Specification 26 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Interfac IEC104 IEC103 MODBUS Propriety e Hardware LV Network X Manager Female A LV Connection X Manager Female B x Terminal Load amp Battery Management Moixa
4. 7 3 3 Commercial Office 5 7 4 SOLUTION OVERVIEW 4 1 ce 8 4 2 System 9 43 Demand Resporise LIL l eit te it bi bio 10 5 SOLUTION TECHNICAL U u u uuu u u 12 5 1 wea Cx 12 5 2 Power Electronics and Energy Storage a 13 5 3 Smart ADPIIANCES L ERO CREUSE 14 5 4 14 5 5 DC M 15 5 6 LV Connection Manage lis 0 u bee ctt Pa et 16 5 7 LV Network Managers Em 17 5 8 eet 18 5 9 LV Distribution Network Sensors and Instrumentation 20 5 10 Customer Prermises SernsorS u ULU nnns nnns 21 5 11 Data Collection and ArchiVing u sasa asas E 21 5 12 Energy Supplier Tariffs 22 SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved Fo
5. 6 Thursday 27 September 2012 Page 2 of 101 SoLa Bristol Technical Design Executive summary This document provides a detailed overview of the technical solution for the SoLa BRISTOL project It has been compiled from information provided by the projects partners Siemens University of Bath and Western Power Distribution The SoLa BRISTOL design contains three key elements these are the LV Connections Manager LV Network Manager and Data Concentrator the three of which provide the intelligence allowing the network to operate flexibly to overcome potential Network limitations The remaining components while key to delivering the solution respond to the instructions of these elements Properties will have four main components either a single of three Four Quadrant Inverter s a DC DC converter Battery Enclosure and an LV Connection Manager Substations supplying properties with the SoLa BRISTOL solution will have a LV Network Manager installed All properties will be linked the connected substation using a VPN over the GPRS network All substations are linked to the Data Concentrator using a VPN over the GPRS network recording data from properties and substations Project Background BRISTOL is an alternative method to enable high density photo voltaic solar generation to connect to the low voltage network more efficiently through using an in home battery and variable tariffs The pro
6. 3 5 3 1 EV Gonnections Manager si s Ld a e a DL La ER Re ong 3 5 3 1 1 Demand RESPONSE m teet e p ER Lr Seu eee Perrier edu 3 5 3 1 2 Communication nnne 3 5 3 2 Load and Battery 1 99 see eiiis 3 5 3 2 1 Communication 3 5 3 3 3 5 3 4 3 5 3 5 Charge Controller DC DC Converter eene ennt 3 5 3 6 3 5 3 7 DC Netlwork Conneclions 3 5 3 8 Communications eite is 3 5 3 9 oubstation EqUIDITIent 3 5 3 9 1 Communication 3 5970 Ro Tianna luu 3 6 COMMERCIAL 4 0 44 6800 4 4 00111 3 6 1 GOMMERGIAL uu infe eve ees ees ved haya Sve teed ka hou hawa tasas 3 6 2 COMPONENTS 3 6 3 WITHIN THE COMMERCIAL PROPERTIES 3 6 3 1 LV Connections MANAGER iti d i nd a prd n ed eR D E ER LE RR 3 6 3 1 1 Demand Response neire todan ei eieae rte In
7. Figure 4 Battery Connections Refer to Chapter 5 3 7 DC Network Connection for integration with the DC system To ensure that the weight of the battery unit has been sufficiently spread over the loft space Bristol City Council require the existing trusses to be cross beamed Installing these secondary beams over the existing will spread the load to a greater extent The battery unit 2 5 2 x 12SMG100F_STSR_00 will be housed within IP21 enclosure whereas the Control Unit will be a wall mounted box 2PE 2630 00 GA Any proposed solution will abide by the following points e Any installation should have new timber installed and fixed onto the existing timbers e This must cover a minimum of 3 joists approximately 12 inches apart e The installation should sit on top of an appropriate spreading board plywood chipboard Separate reports will be commissioned for the three trail installations The outcomes of which will dictate the necessity for any future installations So La Bristol Functional Design Specification 20 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 7 DC Network Connections The DC network comprises of a number of components as described throughout the document The physical connections are detailed below During day light hours the DC system will be fed directly from the PV array located on the
8. lace ttens ta form mattwell di BAAAAA 102 70 um en ventilation opening A Wu high level extract fan 95 dp rafters at 602crs gt i Sanaa 6 ossi i passivent duct rise i AA AAT RR AMA n BARA AAA PARI soffit edge DATA NA N WENN gt jonas ch OX MAD H lt AAA SAYAY i 7 BATA curtain track i ECR MAU j H 4141 gt P RAN 2 NJ Z 2 f EXE dj t YW WA LIVING ROOM Jia oder beret 4 fy Z A 5 SAARI RAIA hi AVA IA ATU d p m 2 20 An M 2 ile amp 2 h ww E 2 RAT i NAAN 7 RRR 2 z s 2 3 A aay 9 Pdl AAA d A BOND WAREHOUSE SMEATON ROAD BRISTOL drawing 770 2A BRUGES TOZER PARTNERSHIP ARCHITECTS 7 UNITY STREET ISTOL 851 5HH tel 0117 927 9797 fax 0117 9279 623 Scale 1 50 date september 1995 05 09 12 Document Release W
9. So Serving the Midlands South West and Wales Solar energy when you need it LCN Fund Low Carbon Networks N7 NN Low Carbon Network Fund Successful Delivery Reward Criteria 9 2 Confirmation of the SoLa BRISTOL design September 2012 SoLa BRISTOL Building Renewables and Integrated Storage with Tariffs to Overcome network Limitations Version V 1 0 Author Philip Bale Principle Project Manager Recommended By Philip Bale Principle Project Manager Approved By Paul Jewell Policy Manager Page 1 of 101 SoLa Bristol Technical Design Contents 3 Project Background za nter rre rper entes 3 Document Purpose 20 a ese Sume aged ota aaah vean yn Sua qid eda n 3 System Design Performan Ce EEE ettet EE a tet er 4 SOEa BRISTOE d Sigli dta 4 1 Project Specific 5 2 Component Information l ee tr a e pae eet ee 5 3 Supplementary Information 5 Supplier Documentation SoLa Bristol Supplier Documentation pd
10. A Commercial in Confidence TECHNOLOGY ERA TECHNOLOGY What else can ERA Technology do for you AccessERA Access to specialist expertise via the Information Centre Technical Reports Publications Training Courses and Conferences Condition Assessment Optimise the performance and life of high value static rotating electrical assets Electromagnetic Compatibility EMC Management modelling and measurements to support reliability Engineering Design Performance Assessment of electrical and mechanical components systems and materials Third party verification Environmental Regulatory Compliance Understand how multiple changing obligations can affect your business Forensic Engineering Failure investigation to establish root cause Expert witness support Power Systems Services Design quality assessment and protection studies Electrical Power Systems Analysis Software ERACS Safety Assessment Independent assessment to assure system safety Safety Engineering Safety planning risk management and safety cases Software Assurance Independent assurance of software intensive systems procurement support Find out more about ERA Technology s specialist engineering consultancy services web www era co uk email infoGera co uk or call 44 0 1372 367345 Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 12 ERA Technolog
11. RD EN SIEMENS RS485 Y CABLE EARTH ROUTER POWER 3 PIN SOCKET FOR ROUTER P55 WTLESL SEE NOTE 7 EARTH GN 25mm CORE 2 5mm TWIN amp EARTH NOTES 1 DANGER DO NOT DISCONNECT THE DC PLUGS UNDER LOAD TURN OFF PV ARRAY ISOLATOR SWITCH 2 FOR ACCESS FIXING AND ISOLATION INSTRUCTION FOR THE DC DC CONVERTER AND OR BATTERIES THEN REFER TO PE SYSTEMS DOCUMENTATION 3PE 2830 00 GA BATTERY CABLE TRANSMISSION BOX 2PE 2630 00 CD CIRCUIT DIA FOR CVHF 2PS 128MG100 F STSR 00 BATTERY LAYOUT 3PE 2630 01GA TTIR CLADDED STAND 3 FOR INSTALLATION ISOLATION INFORMATION OF EXISTING PV HARDWARE AND WIRING THEN REFER TO SOUTHERN SOLAR LTD DOCUMENTS 4 FOR ACCESS FIXING AND ISOLATION INSTRUCTION OF THE INVERTER PLEASE REFER TO STUDER EXTENDER UNIT COMBINING INVERTER BATTERY CHARGER amp TRANSFER SYSTEM DOCUMENT 5 WIRE SIZE COLOURS ALL WIRING WILL BE IDENTIFIED WITHIN THE DRAWING BN BROWN BK BLACK GREY BL BLUE RD RED GREEN YELLOW MOIXA USB SKT LA LIGHT SWITCH 6 ALL CASES OF RELAY OR METAL EQUIPMENT THAT CAN BE TOUCHED ARE TO BE EARTHED USING G Y 2 5mm 7 CT NORMAL OPERATION SHORT CIRCUITING SLIDER BETWEEN TERMINAL BLOCKS TO BE OPEN AND DISCONNECT SLIDE LINK ON CT INCOMING TERMINAL BLOCK CLOSED 3 CORE 2 5mm CT SHORT CIRCUIT OPERATION SHORT CIRCUITING SLIDER BETWEEN TERMINAL BLOCKS TO BE CLOSED AND DISCONNECT
12. XD1 POWER METER LOFT HARDWARE INTERFACES Transmission and Distribution Ltd Customer Reference Contractor Drawing No 8259497 C85221 B0232 H1 Q001 Sales Reference Customer Drawing No KWaite P Winton KWaite 05 09 12 NTS A2 of 004 x pw qi FIRST ISSUE 600V PV INPUT amp 24V DC DC 2 WARNING LABEL WARNING 600V amp 24V DC LIVE AT ALL TIMES 0 0 DESIGNATION LABEL 24V DC BATTERY amp LOAD OUTPUT BOX DP BATTERY CONNECTOR 320A BATTERY INPUT CONNECTOR PLG1 M10 x 30mm BRASS EARTH STUD 10 INTERNAL CHASSIS FOR PV I P DC DC CONVERTED kWh METER INTERNAL CHASSIS FOR BATTERY FUSES LOAD ISOLATION AND MISCELLANEOUS PARTS EARTH BAR 130mm LONG INTERNAL INFORMATION LABEL 24 DC BATTERY 1 OUTPUT VE CON1 INFORMATION LABEL 24V DC BATTERY 2 OUTPUT VE VE CON2 INFORMATION LABEL BATTERY 2 EL SENSE CON3 purgare ee 1 2 amp 2 ELECTROLYTE LEVEL LOW TERMINAL RAIL o INFORMATION LABEL 24V DC BATTERY 1 INPUT VE VE CON1 INFORMATION LABEL 24V DC BATTERY 2 INPUT VE VE CON2 INFORMATION LABEL BATTERY 2 EL SENSE CON3 NOTES 1 THE CUBICLE IS SECURED TO THE WALL AT THE CENTRES SHOWN VIA FOUR M6 x 6L RAWL BOLTS OR SIMILAR SUPPLED BY OTHERS USING THE S SHAPED TOP amp BOTTOM BRACKETS SUPPLIED THE TWO CUBICLES ARE INTERCONNECTED VIA 50 75 mm DIAMETER BUSHINGS WITH ALL INTERCONNECTING
13. I w NS NE 20 I 32 power socket diagram 87mm 147 mm www moixatechnology com Moixa Technology Ltd 110 Gloucester Avenue London NW1 8HX UK Tel 0207 734 1511 Email info moixaenergy com Moixa Technology Ltd Commercial in Confidence Proprietary and Patent Pending Technology e g US20100076615 SKU PSKT004B USB ENS Power DC devices Power USB devices Specification Power supply Power is connected via screw terminals Input voltage 12 30V DC Power output 2 x standard USB sockets Powering DC devices at 5V max 1A per socket Form factor The socket is provided as a standard 147x87mm electrical face plate and can be attached to a standard back box with standard machine screws The Moixa power hub is designed to provide efficient DC power to the devices you use every day powering and charging devices designed to charge from standard USB sockets The output USB sockets provide 5V output maximum of 1A per socket capable of charging iphones iPads etc It is designed to fix to UK standard electrical socket back box and connects to the DC home micronet circuit or any other DC power supply rated at 12 30V Certification compliance lab r amp d trials Country requirements on request
14. mm 40 x 60 TRUNKING EQUIPMENT SCHEDULE TIER MCB parting SCHEME LABEL DETAILS LOCN No REF ist LINE LINE 2 LINE LINE 3rd LINE EN supiy 240VAC WIRING NOTES 1 WHEN WIRE IS CUT TO LENGTH BOTH FERRULES SHOULD BE PUSHED OVER WIRE IN THE SAME ORIENTATION 1P1 1 1F1 N3 1P1 1AF1 N3 THE PART OF THE FERRULE WHICH INDICATES THE EQUIPMENT REFERENCE MUST BE TERMINATED ADJACENT TO THE EQUIPMENT AND IN SOME CASES WILL BE READ UPSIDE DOWN INDICATED ON DRAWING BY EG 1F1 N3 WIRE SIZES COLOURS ALL WIRING NOT IDENTIFIED TO BE WHITE 1 0mm PVC ALL OTHER WIRING MARKED TO BE WHITE 2 5mm PVC OR TO BE WHITE 4 0mm UNLESS IDENTIFIED BY COLOUR BN BROWN BK BLACK GY GREY BL BLUE GN YL GREEN YELLOW EARTH CONNECTION CT WIRING IS IDENTIFIED BY RED FERRULES VT WIRING IS IDENTIFIED BY YELLOW FERRULES ALL CASES OF RELAYS OR METAL EQUIPMENT THAT CAN BE TOUCHED ARE TO EARTHED USING GN YL 2 5mm ALL TERMINALS TO BE WDU6SL EXCEPT THOSE MARKED THUS A EB wirs DL woutost SAKC4 35 wrest STL5 WDUASL WHEN FITTING TYPE A OR B TERMINALS ENSURE CORRECT ORIENTATION THIS WALLBOX HAS BOTTOM ENTRY CABLES ON ON ALIS Customer Project WPD BRISTOL So La Smart Grid Contractor Title GENERAL ARRANGEMENT OF SIEMENS wnetorxmanacer Transmission and Distribution Ltd BACK PLATE LAYOUT
15. x Female GPRS x D Female P50 Power Meter E P55 Power Meter F Inverter G Charge Controller H Table 3 Communications Interface Protocol Hardware So La Bristol Functional Design Specification 27 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Client Project 77 03125 5 3 9 Substation Equipment The LV Network Manager is part of the substation energy management system and is based on the Siemens SICAM TM performing many functions including monitoring reporting on the AC Voltage network The substation equipment will require an AC DC single phase converter 240vAC 24vDC This equipment will be fitted indoor at the distribution transformer substation as follows 1 Sensing equipment See Figure 9 item 6d at the distribution transformer substation is connected which provides measurements of voltage and power to the LV Network Manager See Figure 9 item 6c The LV Network Manager monitors the local measurements it receives and those received from LV Connection Managers at the premises on the LV network to identify when the LV network reaches constraint points These may be voltage and or thermal constraints and may be caused by an excess of load or an excess of generation It then makes requests of the LV Connection Managers to adjust their load position to correct any constra
16. H 01 to Sub xx VPN Encryption AES 128 VPN Authentication SHA 1 VPN Key Exchange Man Diffie Hellman 2 NAT NAT T VPN Tunnel Monitoring Yes DPD PFS No QoS WLAN Restricted WAN Traffic Hostname DHCP 182 188 1 100 199 Username any Password any Access Wireless WPA PSK SicameMIC N 10 3 1 101 24 Gw 192 1681254 1033 101 24 GW 192 168 1 254 Modbus te i Substation 01 IEC 104 Phone 07 Telco Vodaphone APN Irternet Username Password Hostname 50 01 10 3 1 201 22 Prienary WLAN VPN Type IPSec Site to Site VPN PSK S 841 To Uni 1 VPN Encryption AES 128 VPN Authentication SHA 1 VPN Key Exchange Type Main Didfic Hellman 2 NAT NAT T VPN Tunnel Monitoring Yes DPD PES No QoS No 10 3 1 11 24 GW 192 168 1 254 Uni 01 104 IEC 104 Phane 07 Telko Vodaphone intemet Usemarme Password Hostname Uni 01 IP 10 3 2 254 22 DHCP 10 3 2 250 250 22 Siemens WLAN N A VPN IPSec Site to Client VPN PSK lt gt U 01 0 Siemens Remote VPN Encrypbon 5 128 VPN Authentication SHA 1 VFN Kay Exchange Type Main Diffe Heliman 2 NAT NAT T VPN Tunnel Monitoring Na PFS No QoS No Hostname DC 01 10 3 1 324 Usemame 0 01 Password lt gt 0 01 SCADA SICAM 230 Siemens Remote 01
17. 2 c m c gt o P c o 23 o 2 23 amp Copying of this document and giving to others and the communication of the contents thereof are forbidden without express authority 2 1 9 10 BATTERY BATTERY SOCKET SOCKET 160A 160A I I I I I BATTERY BATTERY Met d BATTERY 2 2 Pave C FUSE P E f SOCKET SOCKET sic OEO Fen Q A 160A 1 d 2PS_12SMG100 F T I I I SYSTEMS LIMITED 2012 PLUGI 1 25A SH 2 L HOO poe UNO NU a5 M HUE CONS 2 1 3 DM 1 B L C NO 150 75mV F1 CHARGER OUTPUT LET160 24 D 24V DC OUTPUT TO INVERTER AND 25A ALL DC LOADS pv PANEL INPUT J Q SH2 STRING1 ps S __ 200 600 DC 24 2 2 2 5 1 2 C NO M10 EARTH SYSTEM THE ITEMS WITHIN THIS AREA ARE OV X STUD LOCATED IN CUBICLE TWO ALL i THREE POWER CABLES J12 J15 LLE BAR 7 amp J16 PLUS THE DATA CABLE LINK FOR WILL PASS THROUGH SIDE WALL EARTHED 7 BUSHINGS PEE F3 9 WAY RIBBON CABLE 5 25 L p s EE C
18. Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication roject B R ISTO L Version V2 00 Solution Outline Status Released Page 8 22 4 Solution Overview This section identifies the components which are to be used and describes their combined operation to deliver the Learning Objectives 4 1 Components PV Photovoltaic generation Network operator distribution IEM Import Export Meter Supply metering FM Tariff Meter Loads premises distribution 33 kV and SM Sub metering Controllable loads above Low carbon generation Storage power electronics HV primary distribution Customer DNO assets assets Smart appliances Normal PV inverter not used during trial supplier assets Distribution EN substation Building boundary Low D voltage 4 Figure 2 Technical Solution Within Premises Equipment Normal electrical distribution arrangements for premises connected at low voltage LV are as follows e The electrical supply is delivered by the network operator to the point of connection where it is metered For feed in tariff purposes this is an import export meter IEM in Figure 2 e Photovoltaic PV generation is normally connected to the premises AC distribution through an inverter and feed in tariff meter FM e Appliances within the premises are supplie
19. J e Y BUS CABLE 7 5103 5 33S 9 6 sal TERMINATION BUS 1HS 33S Y BUS CABLE 7 5103 C LHS 33S 9i Hvyal 5 33S 9 91 Y BUS CABLE 7XV5103 0AA00 LHS 33S 8X N1 5 338 METER 5 5 33S Z LHS 335 ela LHS 33S ci val Y BUS CABLE 24VDC VE 7XV5103 0AAxx 5 33S 9L g L C LHS 33S 9 6 981 Y BUS CABLE 5103 REAR VIEW OF SWING FRAME ANTENNA Y BUS CABLE 7 5103 1 4 LHS 33S ciega 5 33S Y BUS CABLE 5103 0829 2 SEE SHT 2 Project WPD BRISTOL So La Smart Grid ON ON ALIS Contractor Title WIRING DIAGRAM OF SIEMENS atvnemorx manacer Transmission and Distribution Ltd DOOR EQUIPMENT Customer Reference Contractor Drawing No 8259497 G85221 80232 H1 Q001 Designed Drawn Checked Approved Date Scale Size Sheet 001 Revision L 02 4 s 1 l sm 2 s FIRST ISSUE FIRST ISSUE item REF DESCRIPTION 1 RS232 RS485 CONVERTER REF ON M LV NETWORK MANAGER MINITURE CIRCUIT BREAKER B1 B2 LK SITOP POWER SUPPLY 24VAC 24VDC 5 r 240VAC TERMINALS 24VDC TERMINALS 7 TB3 7 CT amp VT TERMINALS EARTH LINKS 40 x 60 TRUNKING B
20. 3A 50Vdc 82kg 42 kg 46 kg 110x210x310 230x300x500 IP54 IP20 Directive EMC 2004 108 CE EN 61000 6 1 EN 61000 6 3 EN 55014 EN 55022 EN 61000 3 2 62040 2 Low voltage directive 2006 95 CE EN 62040 1 1 EN 50091 2 EN 60950 1 20 to 55 C 100 95 without condensation Optional cooling module ECF 01 Forced from 55 C lt 40dB lt 45dB without with ventilation baa value with optional cooling fan module ECF 01 1 With 01 at the end of the reference XTM3500 24 01 means 120V 60Hz Available for all Xtender except 8000 48 User manual 4 1 2 45 EQUIPMENT SCHEDULE ar x E ee GPRS ROUTER ANTENNA ANT794 3M SU BUNK PLATES Zaq 4U MOUNTING PLATE C W CUT OUT FOR 3 METERS eses 4U MOUNTING PLATE C W CUT OUT FOR 2 METERS ss METER METER 2 3 300 FRONT VIEW VIEW ON A A WITH METAL DOOR REMOVED Project WPD BRISTOL So La Smart Grid 5 ON ONC ALIS Contractor GENERAL ARRANGEMENT FOR SIEMENS wnetorkmanacer ew Transmission and Distribution Ltd WALLBOX REVISION A Customer Reference Contractor Drawing No 8259497 85221 0232 1 0001 Sales Reference Customer Drawing No Designed Drawn Checked Approved Date Scale Size Sheet 001 Revision APPROVED KWaite 260742 Kaie NTS m 00 A 5 eo 5 FIRST ISSUE _ a C ld s e J
21. 8259497 G85221 B0232 H1 D001 Sales Reference Customer Drawing No 77 03125 Designed Drawn Checked Approved Date Scale Size Sheet 002 Revision PWinton KWaite KWaite 25 07 12 NTS M fo 02 3 4 _ 5 WIRING NOTES 1 WHEN WIRE IS CUT TO LENGTH BOTH FERRULES SHOULD BE PUSHED OVER WIRE IN THE SAME ORIENTATION 1P1 1 1F1 N3 1P1 1 1F1 N3 THE PART OF THE FERRULE WHICH INDICATES THE EQUIPMENT REFERENCE MUST BE TERMINATED ADJACENT TO THE EQUIPMENT AND IN SOME CASES WILL BE READ UPSIDE DOWN INDICATED ON DRAWING BY TM 1703 X13 VE METER 1 VE SEE SHT 1 GPRS VE SEE SHT 1 1703 X13 VE METER 1 VE SEE SHT 1 GPRS VE SEE SHT 1 J1B J2A J2B J2c EG 1F1 N3 Y BUS CABLE SEE SHT 1 240VAC SEE NOTE 5 WIRE SIZES COLOURS ALL WIRING NOT IDENTIFIED TO BE WHITE 2 5mm ALL OTHER WIRING MARKED TO BE WHITE 1 0mm OR TO BE WHITE 4 0mm UNLESS IDENTIFIED BY COLOUR SEE SHT 1 BN BROWN BK BLACK GY GREY BL BLUE GIY GREEN YELLOW EARTH CONNECTION METER 1 TBE SEE SHT 1 METER 1 TB F SEE SHT 1 METER 2 TB E METER 2 TB F SEE SHT 1 METER 3 SEE SHT 1 METER 3 1B F SEE SHT 1 CT WIRING IS IDENTIFIED BY RED FERRULES VT WIRING IS IDENTIFIED BY YELLOW FERRULES ALL CASES OF RELAYS OR METAL EQUIPMENT THAT CAN BE TOUCHED ARE TO BE EARTHED USING G Y 2 5mm ALL TERMINAL BLOCKS T
22. Siemens and the University of Bath It builds upon the Technical Overview outlined in Appendix C of the BRISTOL bid page 81 of the Design Appendix Due to the change incorporated at the project direction stage requesting Western Power Distribution to incorporate an initial installation before recruiting and surveying properties the project plan being re forecasted to account for an initial installation phase The homes schools and office will not be selected until after the initial installation in October 2012 Therefore the design will be supplemented after the participant recruitment and re published in December 2012 through the project websites after all locations have been selected and typical designs for homes schools and the office have been included System Design Performance The University of Bath have broken the SoLa BRISTOL design down into the six main building blocks for the calculation of the system efficiencies PV panels and associated PV cables isolation protection and interconnecting devices grid site energy import export interface User load side energy export energy storage devices and the overall control communication management devices Further details on SoLa Bristol System Efficiencies and losses are included on page 80 of the Design Appendix SoLa BRISTOL design The attached documents have been separated into the following categories Design Appendix Project Specific Descriptions A description of the fu
23. _ Daytime early evening and Lighting 0 01 0 2 Reduced output evening esp winter upto 0 1 upto 0 1 Table 2 Loads Appropriate for Demand Increase Typical load Potential demand Load domestic DR method Typical availability increase kW kW Peak Average Immersion heater 3 Automatic control Daytime nighttime 3 3 Daytime evening Storage heating 2 Automatic control cooler seasons only 2 2 Tumble drier 2 5 Smart appliance Occasional 2 5 2 5 Dishwasher 1 requiring user Occasional 1 1 Washing machine 0 63 interaction Occasional 0 63 0 63 Notes for Table 1 and Table 2 Days are split into the following periods early morning 0500 0700 morning 0700 0900 daytime 0900 1700 early evening 1700 1900 evening 1900 2300 nighttime 2300 0500 Peak DR potential is defined as 10 min Average DR potential is defined as 30 min SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 12 22 5 Solution Technical Details Each subsection below refers to a numbered element within Figure 2 e g section 5 3 refers to the item with a yellow numbered 3 in Figure 2 5 1 DC Network Description While the use of DC networks within domestic and commercial premises is not common there is wide experience of the use of DC appliances within the truck and leisure vehicle sector Wher
24. be lead by the property survey results The unit is detailed within drawing 2PE 2630 00 GA Refer to Chapter 5 3 7 DC Network Connection for integration with the DC system within the homes Refer to Chapter 6 3 7 DC Network Connection for integration with the DC system within the commercial properties 2kW Unit Specification e Input voltage Normal DC range for full throughput power 200Vdc to 600Vdc throughput power being pro rata reduced below 200V to limit maximum input current to that at 200V e Input current 7 2A 600Vdc input rising to 21 7Adc 200Vdc input at maximum power output 30Vdc 130A e Output voltage Regulated 27Vdc to 30Vdc adjustable e Voltage regulation lt 1 over full range of load and line variation e Voltage ripple lt 1 RMS of the value e Output current 10Adc to 130Adc adjustable short circuit proof e Current regulation lt 1 over full range of load and line variation e Parallel operation with current sharing e Separate input for battery current control Over temperature protection with automatic reset Cooling Fan assisted So La Bristol Functional Design Specification 18 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 e Efficiency 90 e Input protection Proprietary 25A 1000V 10 x 38mm Solar isolator e Output protection to be confirmed Suggest semiconductor fuse for revers
25. 2a voltage lower Decrease Discharge battery load limits exceeded defer load Export reactive Power 2b thermal limits Decrease Discharge battery exceeded defer load 3 Need to profile match availability of low carbon generation Adjust load to availability of LC energy Charge discharge battery to availability of LC energy Table 2 Network Use for the LV connection Manager 5 3 1 2 Communication interfaces The LV Connection Manager will communicate to the LV Network Manager via the GPRS router using IEC60870 5 104 protocol The communications to the Load and Battery Management system DC DC convertor and Siemens Simeas P55 AC meter will be via RS485 using MODBUS protocol See Chapter 5 3 8 Communications for all Protocols and connection types So La Bristol Functional Design Specification Document reference 285221 0001 005 13 of 40 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 2 Load and Battery Management The Load and Battery Manager is part of the home and commercial energy management system and is based on the Moixa Smart Hub performing many functions including control monitoring reporting on the internal DC Voltage system and battery storage The Load and Battery Manager will 1 Coordinated via the LV Connections Manager to perform e Capacity Management taking into account forecasts of storage potential storage charge discharge targ
26. CFL technology will be sourced e LED lamps and DC compact fluorescent lamp CFL wide availability e Dimmable control module Osram Switches for DC lighting including dimmable control 5 6 LV Connection Manager Description The function of the LV Connection Manager is to integrate the capabilities of the PV battery storage and the electrical demand to e minimise the financial cost of energy used e minimise the carbon impact of energy used e actively manage the real power profile to support the distribution network demand response and e provide reactive power support to the network to an overall optimal position through the control of the following aspects of their function e advancing and deferring load use and or reducing load use generation and absorption of reactive power through the inverter e active management of battery charge and discharge The following network use cases are defined which the LV Connection Manager should support see section 5 7 below for details Table 3 Network Use Cases for LV Connection Manager Situation Electrical demand Storage PV Charge batter Absorb reactive power 1 1 3 i generation limite exceeded advance load Absorb reactive Last resort reduce over load power output 1b thermal limits Increase herce bader Last resort reduce NIWOT exceeded advance load 9 y output D
27. EXISTING FIRST FLOOR DISCONNECT SLIDE LINK ON CT INCOMING TERMINAL BLOCK OPEN CEILING RADIAL LIGHTING CIRCUIT ROSE GN EARTH TB SOLAR PV SYSTEM PV SYSTEM TOTAL GEN 3 CORE 4mm MAIN AC ISOL 3 CORE 4mm amp kWh METER TWIN amp EARTH TWIN amp EARTH EXISTING DB AND PV INSTALLATION RD BL RD BN BL BN MOIXA m LIGHT SWITCH USB SKT TO EXISTING AC ISOLATOR IN LOFT 3 CORE 2 5mm 3 CORE 4mm TWIN amp EARTH TWIN amp EARTH DB ISOL MCB 1 MCB2 MCB3 MCB4 EXAMPLE OF HOUSE DISTRIBUTION BOARD ON OY ALIS TO P55 TB 1 3 MAIN FEED DNO FUSE NEW CONSUMER UNIT Customer Project 1 MOIXA USB SOCKET TO ONLY BE MOUNTED IN THE DNO WPD BRISTOL So La LIVING ROOM KITCHEN AND MASTER BEDROOM Smart Grid 2 ALL 240 VAC TERMINALS AND P55 TERMINALS TO BE SHROUDED AND LABELED NOTE Contractor Title WITH WARNING LABELS 1 MCB 2 WAS USED FOR GROUND FLOOR LIGHTING CIRCUIT WIRING DIAGRAM OF MCB3 WAS USED FOR 1ST FLOOR LIGHTING CIRCUIT S E s NEW CONSUMER UNIT Transmission and Distribution Ltd DRAWN CHECKED Customer Reference 8259497 Contractor Drawing No G85221 B0232 H1 Q001 Customer Drawing No Checked Approved Date Scale Size Sheet 003 Revision K Waite 05 09 12 NTS A2 of 004 A Sales Reference 77P0 03125 Designed K Waite pe eS et j FIRST ISSUE moixa TECHNOLOGY DC Manager unit DC Manager diagram C Zigbee comms 357 telegesis RS232
28. IT tablet or mobile phone etc Considerations will have to be given to the wall height at which they are mounted due to the length of lead available on a standard USB charging cable e 1 USB socket 5 35 04A will be installed in the living room This socket will loop into the existing system and be mounted in a suitable place to run the trunking The main use of the socket is for charging a Laptop or PC e The LV Connection Manager communicates with the LV Network Manager see Figure 1 to control influence the operating mode charge discharge of the battery via the Load and Battery manager inverter see Figure 5 item 2a amp 6b and any loads which it can including smart appliances see Figure 5 item 3 controllable AC loads such as intelligent appliances and any controllable DC lighting e The LV Network Manager located in the distribution substation see Figure 1 communicates with the LV Connection Manager see Figure 5 item 7 viaa separate GPRS communication module see Figure 5 item 8 e On the network side of the import export meter sensing equipment P55 see Figure 5 item 10 is connected which provides measurements of voltage and power to the LV Connection Manager see Figure 5 item 6 So La Bristol Functional Design Specification 22 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 PV Photov
29. Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 Within the House The system will be configured in accordance with Figure 1 and perform the following functions See Figure 2 for the Dataflow and Functions contained within the LV Connection Manager amp Load and Battery Manager Load Load adjustment management Generation forecasting Storage of setpoint Storage State of charge Storage charge E J Discharge level Reactive power adjustment Real power adjustment Targeting Optimisation Capacity management Storage charge Voltage and power Discharge setpoint Measurements Load forecasting measurements Voltage and power Figure 2 Dataflow and Functions contain within the LV Connection Manager amp Load and Battery Manager LV Connections Manager LV Connections Manager covers the following functions Targeting The targeting function takes requests for adjustments to real and reactive power exchange with the premises and using forecasts of loads as the base line calculates targets for the inverter to achieve for real power and power factor Optimisation This aspect uses forecasts of potential for load adjustment and storage to determine which adjustments should be applied to optimise the energy supply tariff taking into account constraints and external requests for real or reactive power adjustment So La Bristol Functional Design Specification 9 of 40 Docum
30. THE DC DC COMVERTER B BATTERY STAND LAYOUT 3PE 2630 01GA 7 THE INPUT CABLES FOR THE BATTERY AND THE LENGTH OF THE TH1 PROBE LENGTHS WILL DEPEND ON THE BPS T2SMOTOO E STSR DO A BATTERY STAND POSITION IN RELATION TO THE THW ENCLOSURES AND A MAXIMUM LENGTH NEEDS TO BE AGREED TITLE DRAWN TRACED CHECKED APPROVED DATE PV ISOLATION SWITCH SW2 ADDED AND NOTE 4 AMENDED REFLECT SIEMENS T amp D HEBBURN 2 BATTERY STRINGS REVISED TO TWO STRINGS VARIOUS SEE ORDER SPEC wu 55 C TERMINALS 2 3 AND 2 4 ADDED WITHIN CUBICLE MS CONTRACT NUMBER COLOUR DRAWING No REVISED TO MATCH TWO ENCLOSURE CONSTRUCTION COMMUNICATIONS 4505314032 RAL7035 01942 260330 PE SYSTEMS LIMITED CIRCUIT DIAGRAM FOR CVHF 400 24V 125A DC DC VICTORIA STREET CONVERTER WITH BATTERY PRUTECTION AND ISOLATION M Barnes D Lewis M Smith 28 08 2012 do MODBUSE NOW IN CUBICLE 2 INTERCONNECTING CABLE CLARIFIED BOTH BATTERY STRINGS AND PROBE ADDED ELECTRONICS FAX 01942 261835 2 p F 2 6 O OQ D PE W O No RATING ISS DESCRIPTION APPD DATE F U 21 Email sales pe systems co uk 2 2 4 Offenders are liable to the payment of damages All rights are reserved in the event of the grant of patent or registration of a utility model or design moixa TECHNOLOGY USB power socket 13 JC v a 1 lt 9 I
31. WAN ADSL From lab Local IP Any VPN IP From 14 01 Pool Usemame SRM Password lt gt SR 01 SSH access 1o manage the routers Project SoLaBristol System Efficiencies UNIVERSITY OF BATH System Efficiencies By S Kaushik E amp EE UoB File SoLaBristolSystemEfficiencies V0 odt This document is intended to identify and quantify the system efficiency and losses Where possible manufacturers claims are taken in the first instance and are to be verified through field collected data over the life time of the project The main building blocks of the system to be considered are a PV Panels and associated PV Cable As the PV panels come with different VI ratings for similar panel wattage rating These two figures are to be provided here Generally the Si panels can range between 12 to 20 Above this figure price premium applies The 60 66 cell panels can have different b Isolation protection and interconnecting devices Generally these devices are seen as transparent though they do contribute to system losses This device category includes circuit breakers fuses connectors and isolating mechanical devices and such like c Grid side Energy import export interface The inverter operational standby and active state power levels have been considered though these can be configuration and mode of operation dependant d User load side Energy export The load types and their efficiencies are a major functional element of the
32. a sustained rate of 3 MB per day on the uplinks and 1 MB per day on the downlinks e Privacy and security of customer s data is of paramount importance and appropriate authentication mechanisms to access the communications payloads are required Desired requirements e Communications channel behaves as a bridge with TCP IP interfaces at each end transparent op eration Technology Source Testing communications methods is not considered an element of this project and the method chosen should be considered proven and low risk WPD have existing LCNF projects which are trialling communications for LV networks using power line carrier PLC If the PLC communications of these existing projects meet the requirements for Project BRISTOL and the existing projects indicate sufficient confidence can be placed on these communications they will be considered for Project BRISTOL Other methods under consideration include General Packet Radio Service GPRS and if geography allows meshed radio such as Zigbee SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 20 22 ee 5 9 LV Distribution Network Sensors and Instrumentation Description The purpose of the LV distribution network sensors and instrumentation is two fold firstly to collect meas urements which are used by the LV Network Manage
33. and reduce technical risk the following technology has been identified that is capable of meeting the essential requirements However a full procurement exercise will be undertaken during the project e CT split core Rogowski coil or optical fibre based current sensors e Instrument Siemens Simeas P50 Testing measurement sensors is not considered an element of this project and the method chosen should be considered proven and low risk WPD have existing LCNF projects which are trialling different measurement sensors The BRISTOL project will draw on the results of these trials in the selection of appropriate sensors SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 22 22 e Data should be stored securely recognising that privacy of customer s data is of paramount impor tance and appropriate authentication mechanisms to access the data are required Technology Source The LV Network Manager will be based on a Siemens data logging system 5 12 Energy Supplier Tariffs Description A number of Variable Tariffs will be will be trialled on the domestic installations to incentivise customers to alter their demand profile flattening their demand reducing their peaks using the automated LV connection manager battery storage micro generation or lifestyle changes or a mixture of the four The variable
34. cable sizes and required current ratings ability to segregate DC requirements and proximity to other LVAC cables e Use of DC rated switches contactors and circuit breakers and e Rating of the system as Functional Extra Low Voltage FELV and application of appropriate protective measures 3 http www bath ac uk news 201 1 03 21 first dc network SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 13 22 Technology Source To confirm the project feasibility enable budget costing and reduce technical risk the following sources have been identified for any special or non standard equipment used for the DC network In this context non standard means not normally used for in premises electrical distribution However final decisions on the distribution arrangements socket and switching arrangements and a full procurement exercise will be undertaken during the project e Switches for DC lighting Moixa 5 2 Power Electronics and Energy Storage Description The centre of the electrical energy storage solution is the inverter which takes charge from the battery and delivers it to the AC network To connect the PV to the battery and hence the inverter and AC loads a charge controller is required to prevent overcharging the battery If feasible the battery and power electronic
35. is expected that all the substations will be ground mounted The project will ideally seek test networks involving indoor substations with space to accommodate the equipment however space requirements may dictate that outdoor enclo sures are required SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 18 22 EET Requirements The outline requirements for the solution are as follows Essential requirements e Able to receive measurements from LV Connection Managers and local sensors e Able to determine when voltage and or thermal constraints are reached from available measure ments e Able to determine which actions are most beneficial to mitigating the constraint e Able to communicate requests for those actions to LV Connection Managers e Able to operate autonomously e Appropriate for deploying alongside ground mounted distribution substations Desired requirements e Able to be remotely accessed for supervisory and data collection purposes e Appropriate for deploying externally Technology Source The LV Network Manager will be based on Siemens automation hardware integrating other off the shelf components as necessary to achieve the required functionality 5 8 LV Communications Description The LV Communications indicated by A in Figure 3 are required to communicate from
36. rating is stated at its output rather than input In this case the 2kW is the power which can be provided down throughout the network grid connection The commercial installations may differ from the initial design the outcome of the site specific surveys will be vital when identifying any issues with the individual properties Any adjustment in the design of the system for example increasing the system voltage to 48vDC will require a comprehensive property survey review along with an updated design review Certain components have been specified due to their specific operation at 24vdc Changing the system operating voltage will have an affect of any universal components therefore costs and timescales could increase Once the surveys have been completed WPD and SIE will need to make decisions based on the information at hand and review the specific system design Figure 3 shows the typical connections to and from an inverter for the homes and Figure 11 shows the typical connections for a 3 phase system for the commercial properties See Chapter 5 3 8 Communications for all Protocols and connection types Charge controller PV Communications interface 1 21 Sens Battery 123 Enty T Lin Xtender U m Inverter Power Gird Figure 3 Typical Inverter connections Refer to Chapter 5 3 7 DC Network Connection for integration with the DC system So La Bristol Functional D
37. sources and cannot deliver a dangerous current The voltages can be measured using a digital voltmeter because such meters usually have a high input impedance If an attempt is made to measure such voltages with a meter such as a Model 8 AVO the current drawn by the meter will be such that the voltage collapses and hence it does not register on the meter This is because of the lower input impedance of the AVO 8 when compared with that of most DVMs Capacitively coupled voltages that may be measured on disconnected lighting circuits that run in the vicinity of energised power circuits are of very low energy and hence are not a cause for concern Inductively coupled voltages that can occur on a cable due to its proximity to another circuit are a function of the current carried by the other circuit the distance over which the two circuits run in parallel and the separation between the source and victim circuits Induced voltages are due to the magnetic field generated by the current flow in the loaded circuit and are independent of the circuit voltages Induced voltages are also largely independent of the size of the source and victim cables The magnetic field due to the current in the line conductor will be 180 out of phase with that produced by the current in the neutral conductor This will lead to some cancellation of the magnetic field at the position of the victim cable and hence a reduction in the induced voltage Theoretically if the line an
38. system their efficiencies are to be taken from the manufacturers claims and verified where possible with some experimental data e Energy storage devices Battery efficiencies are temperature usage and charging dependant As the batteries are to be in wide temperature varying environment and can have major influence on operation thus efficiency This section is expected to have data both from the field and where possible lab testing f Overall control communication and management devices The operational and standby states of these devices and within these Some of the fixed and known sources of losses have been and can be modelled In particular the losses due to wiring can be readily produced once the installation lengths and wire gauge have been established The modelling tool used for this is in development phase as part of battery charging discharging simulation tool esults Fig below is one test plot as part of tool development process Varying Load on wire segment Resultant Wire Losses of wire Varying Wire Lengths new concept loss reduction is m a _ l Varying wire lengths This is new e S a conan asas J isma aie concept for fixed domestic wiring system This is concept exploration only The main tool however can and does provide segment based losses for installation This document is considered as living document and is
39. the design of the University of Bath s DC library The Moixa solution as listed below may be used though at this stage all decisions are survey dependant The option to change the system voltage to 48vdc is described throughout the document with the final design of the commercial system to be agreed once surveys have been carried out on each property The following lists the number of optional DC Desk Hubs per School and per Office e S3xHUBOOS Desk Hub Each Desk Hub will consist of 8 x USB3 single sockets typically 5 35v DC 3 Amp socket for charging PC Laptops PIC miro for real time monitoring and Zigbee communication to relay the data to the Load and Battery Manager Also see Chapter 5 3 2 for further information So La Bristol Functional Design Specification 33 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 3 2 1 Communication interfaces See Chapter 5 3 2 1 6 3 3 GPRS Router See Chapter 5 3 3 6 3 4 Inverter See Chapter 5 3 4 for further information on the inverter PV String PV String PV String Charge controller iA Charge controller Charge controller Communications TT TT T T T T T E Cx at OE Soe ar ee _ TL 56 55 6 55 E Te B T n Inverter ES Seng Battery Ame Inverter E Sem Battery 23 Invert
40. 070GD570AA1 See drawing meter plates cut out 1073500 2508010 2519000 2493000 2034200 2514600 528 015 556 538 WDU4SL WDU4SL WTL6SL WDU10SL STL5 WTL6 1 WTD6 1 QVS2 WAPWTL VH19 BS25 S4B35 YELLOW S B14 SSP3 Supplier Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Splitsec WPD Rittal Rittal Rittal Rittal Rittal Rittal RS RS Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Description LV Network Manager Flash Card 2GB CM 2860 Patch Plug standard V28 ET TR Substation Meter P50 SM 2556 Network Interf Ethernet 10 100 SM 0551 Serial Interface Processor 1 51 CM 0829 RS232 RS485 Converter SINAUT MD741 1 GPRS Router Multi Band Flat antenna ANT794 3M Power supply 240AC 24DC 5A Power Supply Y bus cables RS485 Bus RS485 terminator 4A MCB SICAM 230 First Licence 2 0 DVD Dongle Demo Editor Licence 2 0 PC equiped with SCALA data server GPRS SIM Card 3U Blanking Plates 4U Blanking Plates cut out for 3 meters 4U Blanking Plates cut out for 2 meters AE ENCLOSURE 760X760X300 RAL 7035 Wall Bracket Kit 10mm pk of 4 572519 DOOR STAY FOR AE pk of 5 LOCK COVER SR2034 140 SWING FRAME FOR AE SZ PLASTIC PLAN HOLDER FOR AE Grey Patch Lead Cat5e 1m Patch Cord
41. 125 Siemens STDL IC SG EA NOT TO SCALE ROUTER R45 P1 R45 P2 P55 VT INPUT LIN F INPUT INPUT DC INPUT AC POWER ADAPTER D C 6 A L DC INCOMER FROM LOFT DB DC TO GROUND FLOOR LIGHTING So La Bristol Home Installation Guide Document reference G85221 BO006 WW9 U001 LIGHTING gl AC INCOMER AC FROM FROM AC EXTERNAL CONSUMER CT UNIT FIGURE 3 HALLWAY CABLE CONNECTION REQUIREMENTS 12 of 24 Issue 1 N LEGEND ITEM wox LOADANDBATTERY MANAGER ROUTER GPRSIWIFI ROUTER BILLION EXISTING COMMS CABLE 5 TWISTED PAIR ity for errors or omissions No part may be reproduced or used except n Ltd and is supplied without property of Siemens Transmission and Di a s 8 s 5 s 5 8 8 8 5 BS 5 5 E B 2 2 5 8 2 2 E TO DC DC LOAD OUTPUT MCB1 2A BN RD imme RJ45 CABLE 5 CABLE GY 4mm MCB2 8A ROUTER EARTH m RD BN BK BL RJ45 SKTS MCB3 8A EXISTING GROUND FLOOR RADIAL LIGHTING CIRCUIT EARTH TE SEE
42. 125 3 REFERENCES Document Reference G85221 1B0000 WW9 V000 MC6 049 2 MC6 007 2 C79000 G8976 C236 04 E50417 B1076 C340 A4 E50417 B1074 C339 A4 SA 2012 V4 1 2 So La Bristol Functional Design Specification Document reference G85221 B0001 M005 Siemens STDL IC SG EA Description Outline Hardware Description TM e mic System Description TM ACP System Description EGPRS GPRS Router SINAUT MD741 1 SIMEAS P 7KG775x System Manual SIMEAS P OP Instructions 775x Studer Xtender User manual Studer Appendix User manual V4 0 0 Technical specification Xtender serial protocol V1 3 1 Xcom 232i User Manual V1 0 0 5 of 40 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 4 DEFINITIONS AND ABBREVIATIONS Abbreviation Definition Meaning Logic configuration tool for Siemens 1703 devices CB Circuit Breaker AC Alternating Current DC Direct Current GPS Global Positioning System Satellite HMI Human Machine Interface kV Kilovolts V x 10 LAN Local Area Network LED Light Emitting Diode MCB Miniature Circuit Breaker NTP Network Time Protocol NTS Network Time Server PSU Power Supply Unit Siemens Manufacturer of Automation and Control equipment SCALA Software for configuration of the HMI SCP Station Control Point SCS Substation Control System SLC Station Level Co
43. 14 lamps e One DC power circuit with 5 power points e Properties fitted with PV have 2 kWp installed 3 2 Schools The schools will be selected from those which have pre qualified for Bristol City Council s Solar PV for Bristol Schools scheme Criteria for selection are that they should have an LV connection and that there should be other properties connected on the same feeder The connection can be 3 phase or single phase Assumptions The following assumptions are made about a standard property for modelling and budgeting purposes One DC lighting control circuit with a single control point and 10 luminaires e Three DC power circuits each with 8 power points e PV typically in the range kWp to 10 kWp with potential for one school with 50 kWp 3 3 Commercial Office Space The commercial office space will be one floor of one of Bristol City Council s office buildings It will be fitted out with battery storage and IT equipment powered with DC power supplies Criteria for selection are that they should have an LV connection and that there should be other properties connected on the same feeder The connection can be 3 phase or single phase Assumptions The following assumptions are made for modelling and budgeting purposes One DC lighting control circuit with a single control point or zonal occupancy detection sensor and 16 luminaires e Four DC power circuits each with 8 power points e A10 kWp PV panel SIEMENS
44. 48 XTM 1500 12 XTM 2000 12 XTM 2400 24 XTM 2600 48 XTM 3500 24 XTM 4000 48 3000 12 XTH 5000 24 XTH 6000 48 8000 48 12 48 95 171 19 34V 38 68V 9 5 17 19 24 38 68 19 34 38 68 95 17 19 34V 38 68V 650 500 800 650 900 750 1500 2000VA 3000VA 3500 2500VA 4500 5000VA 7000VA 900 700VA 1200 1000 1400 120 1500VA 2000VA 2400VA 2600VA 3500VA 4000VA 3000VA 5000VA 6000VA 8000VA VA OVA 2 3kVA 2 5kVA 2 8kVA 3 4 4 8kVA 6kVA 6 5kVA 9kVA 10 5kVA 1 5 12kVA 15kVA 21kVA Up to short circuit Up to Pcont 2 to 25W 0 1 1 93 94 96 14WA 4WITW Ew SW 8W tnn eW 8w ss au ides AWO 14WA 6W 9W Eo rai 12 a un W 18 1 8W 2 2W 22W 1 8W 2 4W 80W Pure sine wave 230Vac 2 120Vac 1 50Hz 60Hz 1 0 05 crystal AR lt 2 Automatic disconnection with 3 restart attempts Warning before shut down with automatic restart 6 steps bulk absorption floating equalization reduced floating periodic absorption 100A 120A WithBTS 01 or BSP 500 1200 EN 61000 3 2 XTS 900 12 1200 24 XTS 1400 48 XTM 1500 12 XTM 2000 12 XTM 2400 24 2600 48 XTM 3500 24 XTM 4000 48 XTH 3000 12 XTH 5000 24 600048 XTH 800048 150 to 265Vac 50 to 140Vac 1 45 to 65Hz 16A 20A 50A 56A 50A 80A 15ms Module ARM 02 with 2 contacts as option Two independent switchover contacts potential free 16A 250 Vac
45. CABLES PRE MADE AND NUMBERED THE EXTERNAL BATTERY CONNECTOR PLG1 MATING HALVES ARE FITED TO THE BATTERY CABLES FOR INTERCONECTION AT SITE o e e PE SYSTEMS LIMITED 201 1 LOAD LOAD ennt IOP AND BOTTOM BRACKET SUPPLIED LOOSE FOR FITTING ON SITE ASSOCIATED DRAWINGS A SYSTEM INTERCONNECT WIRING DIAGRAM 2PE 2830 Ir i M E gt CUSTOMER POWER TITLE DRAWN TRACED CHECKED APPROVED SIEMENS NAV Be PQ PE SYSTEMS LIMITED BATTERY CABLE TRANSITION BOX FOR 24V DC SITE C STREET 5 5 5 WITH BATTERY CABLES UP TO 50mm SQ SWA A PIERCE SMITH SMITH 06 07 11 BRISTOL HOUSING PROJECT WN7 5SE 700mm H x 500mm W x 260mm D o_o 07 PE W O No RATING ELECTRONICS FAX 01942 261835 SPE 2830 00 GA 16774 2840 21 4 L 2 cquo 45 Be gt o o o 5 o es o c 9 uz o 47 S 2 c 2 c 5 o o 5 gt o o gt o 2 5 2 c o o o E a o 2 2 5 2 2 5 o 5 E lt 2 o o e 2 5 gt lt o 2 o o S a e gt o e o at 3 2 n 2 c 2 o lt 2 uz o I 5 o gt o 2
46. Cat5e Green 0 5m 240VAC Terminals 24VDC Terminals CT Terminals VT Terminals Earth Links Disconnect Test Terminal Block Disconnect Test Terminal Block Cross Connection Slide End Plate Connection Sleeve Fixing Screw Sockets Sockets Disconnect Lock Page tof 12 ERA TECHNOLOGY Commercial in Confidence ERA Technology Limited Cleeve Road Leatherhead Surrey KT22 7SA England T 44 0 1372 367350 F 44 0 1372 367359 Report Title Review of mixed AC and DC wiring Author M W Coates Client Western Power Client Reference LVDC Installations Report Number 2012 0479 Project Number 11WESTO003 Report Version Final Report Issue 1 Document Control Commercial in Confidence Report Checked by Approved by a A Mr B Knox Dr A Friday Principal Engineer Head of Engineering Design and Performance September 2012 Ref K Projects AccessERA Western Power AC and DC Report Western Power doc PURPOSE OF DISTRIBUTION This document is distributed to Western Power for the sole purpose of technical and commercial use Rights to copy or distribute this document are only granted for the stated purpose The document may not otherwise be used or distributed without the prior written permission of ERA Technology Limited ERA Technology Limited www era co uk Registered in England Number 07419599 i M 7 Registered Office Cleeve Road Leatherhead Surrey 22 75 England ERA Techno
47. Figure 13 item 1 So La Bristol Functional Design Specification 36 of 40 Document reference 285221 0001 001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 e Along with the control units see Figure 13 item 6a 6b 7 8 amp 10 the existing lighting system will be moved onto and powered by this DC network This will be connected via MCB s prior to distribution The existing lighting circuits are to be assessed before final design can be submitted feedback is required from each property e The existing AC light circuit connected to the existing AC consumer unit will be moved onto the new BRISTOL consumer unit and connected into the 24v DC system To do this the light switches will be replaced with new DC switches see Figure 14 and the existing ceiling modules may need to be modified so that only DC LED T5 Tubes can be fitted Existing lighting circuits to be assessed before final design can be submitted the use of existing fittings will need to be understood the current intention is to utilize the existing fittings and removing the choke e The provision of DC ICT equipment will be in the form of a plug socket arrangement along with a DC DC converter As an option the below could be implemented o The DC IT hardware PC Laptop Phones can by supplied via two methods Firstly new DC USB3 5 35V sockets see Figure 10 item 4 connected to the DC system will be mounted withi
48. GEND BST 01 COMI COM 9 WAY FEMALE FOR DCIDC RE485 COMMUNICATIONS NOTES DC DC CON 1 DANGER DO NOT DISCONNECT THE DC PLUGS UNDER LOAD TURN OFF PV ARRAY ISOLATOR SWITCH 2 ACCESS FIXING AND ISOLATION INSTRUCTION FOR THE DC DC CONVERTER AND OR BATTERIES THEN REFER TO PE SYSTEMS DOCUMENTATION 3PE 2830 00 GA BATTERY CABLE TRANSMISSION BOX F3 F4 2PE 2630 00 CD CIRCUIT DIA FOR CVHE 2PS 12SMG100 F 00 BATTERY LAYOUT F6 F7 3PE 2630 01GA CLADDED STAND INT 3 FOR INSTALLATION ISOLATION INFORMATION OF EXISTING PV HARDWARE AND WIRING THEN INV REFERTO SOUTHERN SORA RET e DOCUMENTS G w 5 m e N N NI 5 n n 25 ON LIS ISOL 51 4 FOR ACCESS FIXING AND ISOLATION INSTRUCTION OF THE INVERTER PLEASE REFER ISO 5 2 eee LOAD h TO STUDER EXTENDER UNIT COMBINING INVERTER BATTERY CHARGER amp TRANSFER SYSTEM DOCUMENT PV SKT 5 WIRE SIZE COLOURS RCM 10 ALL WIRING WILL BE IDENTIFIED WITHIN THE DRAWING RLYI BN BROWN Project SHI BK BLACK SH2 GY GREY WPD WPD BRISTOL So La SKTISKT2 BL BLUE Smart Grid Swi DEEST Ts WIRING DIAGRAM FOR XCOM COMMUNICATIONS MODULE RS232 STUDER 6 ALL CASES OF RELAY OR METAL EQUIPMENT THAT CAN BE TOUCHED ARE TO BE EARTHED USING G Y 2 5mm S s
49. LES SHROUDED WITH SHROUDED WITH SHROUDED WITH SHROUDED WITH SHROUDED WITH WARNING LABEL WARNING LABEL WARNING LABEL WARNING LABEL WARNING LABEL Customer Project WPD BRISTOL So La WPD Smart Grid Contractor Title FRONT VIEW OF BACK PLATE WIRING DIAGRAM OF s 1 s A LV NETWORK MANAGER Transmission and Distribution Ltd BACK PLATE Customer Reference Contractor Drawing No 8259497 G85221 B0232 H1 Q001 Sales Reference Customer Drawing No EE p P Winton KWaite 26 07 12 FIRST ISSUE APPROVED 26 07 12 3170 balcony over 209 M jo gt wall up to 1600 affl isers sw treads I gt ERL FIRST FLOOR amp RAFTER LAYOUT ardan metre H control r ZZ position AA 22 PASA P 255 7 AAA 440 O A 1977 TAAAATUTAAA AAA AAAATAAATYYYAAYVINAYWAWAWARATAATUAAAYAAYAAATAAYWITAARATRARATARANTAAARAATARAATAATA TARA TTO CY PAY Y CA YI PAY YS distribution DO C bets 4 p 888 duty trimmer rofter infill floor panel with mr rade chipboard qn w pire
50. O BE AS FOLLOWS TB1 amp 2 TYPE WDUA SL TB3 7 1 12 TYPE WTL6 SL SEE NOTE 5 TB3 7 13 16 TYPE WDU10 SL ELK TYPE STL5 ALL 240VAC TERMINALS TO BE FULLY SHROUDED AND DANGER WARNING LABEL APPLIED FEEDER 1 CT NORMAL OPERATION SHORT CIRCUITING SLIDER BETWEEN NOTE 6 NOTE 6 TERMINAL BLOCKS TO BE OPEN AND DISCONNECT SLIDE LINK ON CT INCOMING TERMINAL BLOCK CLOSED IE FEEDER 1 FEEDER 2 FEEDER 3 DANGER DANGER DANGER DANGER DANGER DANGER CT VT VT ST TERMINALS TERMINALS TERMINALS TERMINALS TERMINALS TERMINALS CT SHORT CIRCUIT OPERATION SHORT CIRCUITING SLIDER BETWEEN TERMINAL BLOCKS TO BE CLOSED AND DISCONNECT SLIDE LINK ON CT INCOMING TERMINAL BLOCK OPEN IE oo RED FERRULES YELLOW FERRULES RED FERRULES YELLOW FERRULES RED FERRULES YELLOW FERRULES SHROUDED WITH SHROUDED WITH SHROUDED WITH SHROUDED WITH SHROUDED WITH SHROUDED WITH WARNING LABEL WARNING LABEL WARNING LABEL WARNING LABEL WARNING LABEL WARNING LABEL METER 4 TB SHT 1 METER 4 F SEE SHT 1 METER 5 TBE SEE SHT 1 METER 5 F SEE SHT 1 METERS TBH SEE NOTE 5 TB6 FEEDER 4 NOTE 6 NOTE 6 FEEDER 4 FEEDER 5 DANGER HIGH VOLTAGE MAY APPEAR IF EARTH LINKS ARE OPENED WITH CTs IN SERVICE DANGER DANGER DANGER DANGER CT VT CT VT TERMINALS TERMINALS TERMINALS TERMINALS ON ONC ALIS RED FERRULES YELLOW FERRULES RED FERRULES YELLOW FERRU
51. ON3 R x 0 I NOTES 3 4 EUREN INCU a 1 DRAWING SHOWS THE DE ENERGISED POWER APPLIED STATE FOR ALL RELAYS AND ALARMS 4 STRING2 L OF 2 CONTROL WIRING INSTRUMENT WIRE PRIMARY SECONDARY CABLE SEE PARTS LIST MODBUS INPUT 200 600v DC FEED TO FUSES F8 TO BE 2 5mm TRI RATED KEEP PVR DC amp 24V DC WIRING SEGREGATED 5 9 D F KEEP WIRES J1 J6 SEPARATE FROM ANY OTHER WIRES WIRES CROSSING MUST DO SO 90 6 INTERNAL e 3 THE PV PANEL INLETS CONNECTOR PLUG PLUG1 PLUG2 MALE MC4 TYPE 30A IS MOUNTED ON THE CUBICLE BASE THESE FACT ARE TWO SP CONNECTORS WITH EARTHING TAKEN THE THE CUBICLE oe 10mm EARTH STUD a 4 F1 F2 amp F3 F4 PROVIDE INPUT ISOLATION PROTECTION FOR TWO PV STRINGS THESE 500V RATED FUSES d E IN RS32H CHASSIS MOUNTED FUSE HOLDERS 7 IMPORTANT DO NOT REMOVE FUSES F1 4 OR DISCONNECT PLG1 AND PLG2 PV INPUT WHEN PV e 1 255 22 5 20 12050 25 E PANEL PANELS IS ARE LIVE SEY SW2 TO OFF FIRST THIS MAY BE PADLOCKED OFF 5 FLOAT VOLTAGE 27 24V BASED ON 12 VRLA CELLS TEMPERATURE COMPENSATED AT 36mV C BOOST VOLTAGE N A BASED ON 12 VRLA CELLS CURRENT LIMIT 120A ASSOCIATED DRAWINGS F 6 THE TEMPERATURE MONITORING THERMISTOR TH1 WILL BE CONNECTED WITHIN THE BATTERY STAND DIRECT CUBICLE OUTLINE TERMINAL LAYOUT 1PE 2630 00 TO
52. P55 PE Systems Fiamm PE Systems Studer Studer Studer IPU Group Moixa Moixa Billion Crabtree Crabtree ECS Marine Horizon Star Energy Horizon Star Energy Rittal Rittal Weidmuller Weidmuller Weidmuller Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens RS RS RS Siemens SMG F XTM 2400 24 Xcom 232i BTS 01 MainsPro BMS HUBO002 SK002 CM BiPAC 7800GZ 4170 2141 12962 000 E273X1PWW L E276X1PCW L 51466500 51483010 779 598 131 6700 5TE1201 0DA 8GP1853 0DA20 5SU9306 1KK16 5SU9306 1KK06 5SY5216 7 5SY5206 7 5SY5208 7 7XV5103 0AA01 7XV5103 5AA00 556 538 116 3001 116 4228 7XV5103 2BA00 PE Systems PE Systems PE Systems Studer Studer Studer CPS Ltd Moixa Moixa Crabtree Crabtree Mearns Mearns Mearns Rittal Rittal RS RS RS Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens RS RS RS Siemens Lane Plastics Battery Cable Transmission Box x2 Batteries Collapsable Battery Housing Studer Xtender Inverter Commercial Studer Xcom Unit Domestic Studer Temperature Sensor Domestic G59 Protection Relay MX DC Manager Smart HUB MX USB DC socket Domestic router Light Switch SPDT Light Switch Pull Cord E27 Light Pendants ECS Marine Megalux Bathroom LED Light Horizon Star Energy LED 6W 24vDC E27 fitting Horizon Star Energy LED 3W 24vDC E27 fitting Plastic e
53. PD BRISTOL Procurement Schedule Phase Ref Manufacturer Siemens Siemens Siemens Siemens PE Systems Fiamm PE Systems Studer Studer Studer IPU Group Moixa Moixa Billion Crabtree Crabtree ECS Marine Horizon Star Energy Horizon Star Energy LEDLightbulb net Rittal Rittal Weidmuller Weidmuller Weidmuller Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens RS RS RS Siemens EcoHome Trial Installation Part Number 6MF11130GA100AA0BB 6MF12131GA050AA0 6MF11130GG300AA0GG 7KG7755 0AA00 0AA1 SMG F XTM 3500 24 Xcom 232i BTS 01 MainsPro BMS HUBO002 SK002 CM BiPAC 7800GZ 4170 2141 12962 000 E273X1PWW L E276X1PCW L T5 1FT 60SMD WW 24V SLL18NJ KS1466500 KS1483010 779 598 131 6700 5TE1201 0DA 8GP1853 0DA20 5SU9306 1KK16 5SU9306 1KK06 5SY5216 7 5SY5206 7 5SY5208 7 7XV5103 0AA01 7XV5103 5AA00 556 538 116 3001 116 4228 7XV5103 2BA00 Siemens Siemens Siemens Siemens PE Systems PE Systems PE Systems Studer Studer Studer CPS Ltd Moixa Moixa Crabtree Crabtree Mearns Mearns Mearns Mearns Mearns Rittal Rittal RS RS RS Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens RS RS RS Siemens Lane Plastics LV Connection Manager e mic Flash card 2GB PS 6630 Power Supply Property Meter P55 Battery Cable Transmission Box x2 Batteries Collapsable Battery Housing S
54. Voltage level Yes Yes Battery Yes No Charging Discharging Power Usage over 24hrs Yes No Power Usage over 7 Days Yes No AC Meter Power No Yes AC Meter Voltage No Yes Inverter yes No Importing Exporting The information shown above is the data which the system is expected to collect the required measurements will be passed from the array of sensing devices to the tablet PC to be displayed in a graphical form See Table 2 for network use cases for the LV Connection Manager 5 3 1 1 Demand Response While distributed electrical storage is the principal resource for responding to network needs part of the solution being tested within this project is Demand Response DR which is the ability of electrical equipment to modulate its load on the system in response to system needs and requests The phrase DR allows for not only decreasing the load on the system but to also increase the load in response to the network needs So La Bristol Functional Design Specification 12 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Client Project Nr 77PO 03125 Siemens STDL IC SG EA Situation Electrical Demand Storage PV 1 Excess 1a voltage upper Increase Charge battery Absorb reactive power iar n limits exceeded advance load Absorb reactive Last resort reduce local network PONT ome 1b thermal limits Increase Charge battery Last resort reduce exceeded advance load output 2 High peak
55. abling 240v FM Feed in Tariff Meter DC Cabling 24v SM Sub metering Low carbon generation Wired communication Storage power electronics Wireless communication Description 1 Consumer Unit 8 AC DC MCBs 2a Inverter i 2b Battery ES 2c Charge controller 3 Smartappliance 4 DC sockets 5 CFLlamps Standard switches 6a LV Connection Manager 6b Load Management 7 FiT Generation DC Meter 8 GPRS router 10 AC metering 11 Isolator 12 Battery Fuses Hi Standard T AC Distribution Power Outlets Various AC s Various Figure 13 Typical AC DC system connections So La Bristol Functional Design Specification 38 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 ighting Circui Radial Circuit m LED T5 Tubes LED T5 Tubes DC GO RES Radial Distribution y1 4 A l Circuit I I I I I LED T5 Tubes LED T5 Tubes Distribution 240VAC _ omnes Radial Circuit LED 5 Tubes LED 5 Tubes Figure 14 Lighting system connections So La Bristol Functional Design Specification 39 of 40 Document reference 585221 0001 001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 3 8 Communications See Chapter 5 3 8 for further information regarding the system communications Commercial Bath University Schoo
56. additional capacity to manage peak load control voltage rise and reduce system harmonics The techniques trialled will through reduction in constraints and need for network reinforcement facilitate the connection of low carbon devices at reduced cost over a number locations in a range of premises types including homes schools and an office space 2 SCOPE This document describes the functionality and behaviour of the equipment installed in the homes schools an office space substations and Bath University The three key elements to this project are the LV Connections Manager LV Network Manager and Data Concentrator the three of which provide the intelligence allowing the network to operate flexibly to overcome potential Network limitations The remaining components while key to delivering the solution respond to the instructions of these elements The LV Network Manager determines when a constraint is reached and determines where response is needed and requests that response The LV Connection Manager takes requests for response and turns those into actions by the equipment which is controllable in the premises The Data Concentrator logs all of the metering and operational data provided by the LV Network and Connection Managers to be used for system analysis asset management So La Bristol Functional Design Specification 4 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Client Project Nr 77PO 03
57. age For the purpose of these conditions the recipient s organisation shall not include parent or subsidiary organisations Permission to disclose within recipient s organisation does not extend to allowing access to the document via Internet Intranet or other web based computer systems Commercial restrictive markings are as contained in page header blocks If no restrictive markings are shown the document may be distributed freely in whole without alteration subject to Copyright ERA Technology Limited Cleeve Road Leatherhead Surrey KT22 7SA England Tel 44 0 1372 367350 Fax 44 0 1372 367359 Read more about ERA Technology Limited on our Internet page at www era co uk Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 2 ERA Technology Ltd ERA Technology Report 2012 0479 E A Commercial in Confidence TECHNOLOGY Summary Western Power Distribution is embarking on a project to demonstrate the use of Low Voltage d c and battery storage systems in domestic properties schools and an office The LVDC system is intended for use in lighting and small power applications and is intended to avoid the need for d c a c converters ERA has been asked to provide consultancy relating to the requirements for separation between a c and d c circuits and address safety concerns such as induced voltages The review of the requirements of BS 7671 has not revealed any regulation
58. along with a blocking diode A fused connection directly between the batteries and the DC Shunt prior to the connection to the BusBar In addition to the above the supply is also fed to the inverter see Figure 13 item 2a both legs ve ve are connected via fused links and installed in a small distribution board Initially through a DC shunt which takes a signal to the FiT DC generation meter The inverter itself has bi directional AC and DC connections and will be connected into the existing 3 phase system A Siemens Simeas P55 AC meter see Figure 13 item 10 is housed within the new BRISTOL consumer unit which allows for the AC measurements to be taken and passed onto the LV Connection Manager Current Transformers CT s will need to be fitted onto the schools and office incoming AC cables The CT s could be a solid core split core Rogowski or optical fibre based current sensor and must be compatible with the meter refer to SIMEAS P 7KG775x_System Manual E50417 B1076 C340 A4 for Current Voltage input measuring ranges and input connections Western Power Distribution are supplying and installing the CT s within the home The inverter transforms the DC voltage to an AC voltage as described above outputting an AC maintained load output along with an AC voltage output back to the public distribution network via the bi directional AC input From the inverter a DC link is provided to the new BRISTOL consumer unit see
59. bution Figure 1 Substation and Domestic Solution So La Bristol Functional Design Specification Document reference 285221 0001 005 GPRS RIT Conn Mgr Siemens 1703 e mic 6b Load Mgmnt Moixa poss incl battery management 6c Net Mgr Siemens TM 1703 6d AC metering Siemens Simeas P50 8 GPRS router commodity supply 10 AC metering Siemens Simeas P55 11 Isolator 12 Battery fuses Out of scope CT for AC metering WPD FMDC Feed in Tariff Meter Eltime EL96GT 33 kV and above HV primary distribution 7 of 40 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Equipment Hardware Geographic Fixing Housing type Description Location Location LV Connection Manager To be confirmed Consumer Load amp Battery Management after site visit Unit GPRS Router DC Miniature Circuit Breaker AC Meter P55 Batteries Inverter Charge Controller Feed In Tariff Meter Wall Near Existing Electric Meter Photovoltaic Generation Roof DC Switch Replace existing light switches Existing Ceiling CFL Bulbs LV Network Manager Substation Wall Mounted Wall Box AC Meter s P50 GPRS Router Table 1 Equipment Hardware locations So La Bristol Functional Design Specification 8 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution
60. communications links interfaces located within the Homes Schools Offices and Bath University The main backbone of the wide area communications will be GPRS Figure 7 which is required to communicate between the LV Network Manager and the LV Connection Managers The communication channel will allow the LV Network Manager to issue requests to the LV Connection Managers for action to alleviate constraints and allow the LV Connection Managers to provide the LV Network Manager with measurements from within the network and report on actions taken in response to requests from the LV Network Manager Data signals within the network systems will be identified during the course of the project and forwarded onto the Data Concentrator via GPRS located at Bath University for analysis It is important that when RS232 communications are deployed then the maximum distance of 15 metres must not be exceeded GPRS c DEDI PEPPPPI ise ooo oes Me ee eee ee eee NN eg ek cii ie ees ee al i i pH 2 2 i i Z i I 1 I 1 x N i i i lt i i wee il N 1 7 N 1 2 1 1 x I P 1 1 T 1 E 1 i Premises 1 P Premises 1 Premises 2 Premises Premises 1 Premises2 Premisesn i i i i
61. d by AC distribution SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 9 22 Sy For the BRISTOL project it is proposed to modify this arrangement as follows e On the network side of the import export meter sensing equipment 10 is connected which provides measurements of voltage and power to the LV Connection Manager 6 e An inverter 2a connects a battery 2b to the premises AC distribution e The battery also feeds a DC distribution system 1 which supplies DC loads such as IT equipment 4 and lighting 5 e The PV generation rather than feeding the AC distribution through its inverter delivers its power to the battery and DC distribution system through a charge controller 2c The LV Connection Manager is connected to control influence the operating mode charge discharge of the battery inverter 2a and any loads which it can including smart appliances 3 controllable AC loads such as intelligent appliances and any controllable DC lighting The LV Connection Manager communicates with the LV Network Manager 7 in the distribution substa tion using attached communication modules 8 Substation Equipment For the BRISTOL project equipment will be fitted at the distribution transformer substation as follows e Sensing equipment 9 at the distribution transform
62. d neutral cables are separated and the victim cable sits at exactly the midpoint between them there will be no induced voltage on the victim cable This is because the magnetic fields from the line and neutral conductors cancel each other at this point The maximum induced voltage will appear on the victim cable if the line and neutral conductors are widely separated and the victim cable is close to one of them Calculated induced voltages are given below for different separations of the line and neutral conductor with the victim cable touching the line cable Fig 1 Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 9 ERA Technology Ltd ERA Technology Report 2012 0479 A Commercial in Confidence TECHNOLOGY d S Neutral Line Victim Figure 1 Cable layout for example calculations The calculated induced voltages given below assume single core conduit cables having an overall diameter of 3 5 mm so that the centre to centre distance from the line conductor to the victim is 3 5 mm The load in the source circuit has been taken to be 20 A and the circuits are taken to run in close proximity for 10 m Table 1 Induced voltages Separation d Induced voltage mm V 5 0 011 10 0 017 25 0 026 50 0 034 100 0 043 The value given for 5 mm separation be taken to be an approximation of the voltage that would be induced in a single core cable runn
63. d voltage profile graphs of Figure 1 SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project BRISTOL Version Solution Outline Status Page 11 0 4 kV Generation Cable thermal limi Network load Flow in Flow out Without With PV Operational voltage limits Voltage profile Figure 1 Problem Elaboration SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 7 22 3 Description of Subject Properties 3 1 Domestic Properties The domestic properties will be selected from Bristol City Council housing stock for social housing It is assumed that these will be semi detached or terraced properties with three bedrooms and two reception rooms and fitted with double glazing and loft insulation While it would be advantageous for some of these properties to be fitted with PV this is not a criterion for selection It is hoped that all the properties in the trial can be on a single distribution transformer preferably on a single feeder These properties will normally be connected single phase with a 63 A fuse Assumptions The following assumptions are made about a standard property for modelling and budgeting purposes Two DC lighting circuits with 8 light switches and
64. detailed in figure nous the issue with retro fitting the system is operating within the current cable specifications of the property Therefore a maximum of 10A DC has been advised by WPD Calculations will be completed on the request of each user to ensure their request is suitable To allow this adaptation a number of bulbs have been specified as alternatives e 3 Watt E27 LED Bulb E273X1PWW L e 6 Watt E27 LED Bulb E276X1PCW L In order to safely switch the DC lighting tests have been successfully completed on two items a standard 1 gang 2 way single pole plate switch and a 6A 2 way single pole pull switch It is envisaged that the pull cord will only be used in bathroom applications along with the MEGALUX PD1 The rocker or plate switches will simply replace the existing switches to ensure safe DC operation All bulbs specified for general home use bathroom exempt have been chosen with a E27 fitting Due to the popularity of Bayonets or BC fittings within the UK it makes it highly unlikely that the end user will have a suitable AC E27 bulb therefore reducing the risk of inclusion of a non standard SoLa BRISTOL light The pendants are standard E27 units and can handle a current of up to 2 0A So La Bristol Functional Design Specification 24 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 8 Communications Within this project there are many
65. e 3 6 3 1 2 Communication interfaces 3 6 3 2 Load and Battery 7 20000 00098099 nnn rnnt 3 6 3 2 1 Communication interfaces 3 6 3 3 GPRS ROUICK yman m 3 6 3 4 3 6 3 5 Charge Controller aa sa a eae a 3 6 3 6 Battery Balleries m ae a a aoe AL AT 3 6 3 7 DC Network Conneclions 00 3 6 3 8 6 600000001000 3 So La Bristol Functional Design Specification 3 of 40 Document reference 285221 0001 005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 1 INTRODUCTION So La BRISTOL project is an innovative combination of energy storage in customers premises coupled with new variable tariffs and integrated network control to overcome generation or load related constraints at key times of the day It will explore the use of direct current DC power in customer premises in conjunction with battery storage shared virtually between the Distribution Network Operator DNO and customer providing benefits to both parties Through batteries the LV network will be operated more actively with
66. e battery protection capability e Input connection Phoenix plug socket Output connection to be confirmed Bus bar proprietary DP battery connector 160A rated e Operating temperature is based on 25 C to 50 C ambient Based on a maximum relative humidity of 90 in an altitude of up to 1000 metres The ambient storage temperature must be between 40 C to 70 C So La Bristol Functional Design Specification 19 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 6 Battery Batteries The batteries are used to store the energy generated from the 2kW solar array in the homes and x kW in the commercial properties the size is to be agreed following the completed surveys They primarily feed the DC distribution system which supplies the DC loads such as IT equipment and Lighting The batteries can also be used to respond to the needs of the public distribution network demand response effectively exporting and importing for example discharging charging the batteries to the power grid The control of these functions will be carried out via the Load and Battery Management system and LV Connection Manager For the homes the battery configuration will be as follows 4 x 130Ah 12V DC batteries of which 2 are connected in series and then the pairs connected in parallel to create a nominal 24V DC system see Figure 4
67. e possible it is proposed to make use of this learning for the BRISTOL project It is expected that 24 VDC will be used as the nominal voltage level for the DC network This is a compro mise between e Minimising current flow and hence losses and switch breaking requirements and e Maximising availability of equipment appliances lighting equipment inverters and batteries The distribution voltage will be determined by the inverter and battery but may float between 20 and 30 VDC depending on battery charge state and mode of operation Therefore all equipment and appliances will need to be suitable for operation over a wide voltage range A prototype DC distribution network has already been installed at University of Bath library where it is supplying 50 PCs3 In the early stages of the project the choice of 24 VDC will be reviewed with regard to equipment cost energy losses technical feasibility and safety factors Requirements The proposed requirements and features for the DC network are as follows e To be consistent with the requirements of Part P of the Building Regulations drawing on BS 7671 Wiring Regulations 17 edition as amended to the extent that it is relevant to this installation e A nominal distribution voltage of 24 VDC with a permissible voltage range of 20 to 30 VDC e Use of existing cabling where safe and practicable factors will include condition of existing cables and any connection points
68. ent reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Load and Battery Management Load and Battery Management focuses on the local availability of energy resources Generation forecasting This determines the level of locally generated energy expected to be available over the next 24 hours in half hour periods Capacity management This aspect uses the energy supply tariff to determine whether to charge or discharge the battery while respecting the battery minimum reserve levels the requirement to avoid or at least minimise any real power export and minimising the impact on the distribution network Load Forecasting The forecasting aspect determines an aggregated average load forecast for the building in half hour periods Load Management When the Load management receives a request to increase or decrease load it responds it sends an increase decrease load instruction to each controllable load it determined had DR potential for the period So La Bristol Functional Design Specification 10 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 1 LV Connections Manager The LV Connection Manager is part of the home and commercial energy management system and is based the Siemens SICAM TM e mic performing many functions including control monitoring reporting the netwo
69. equires segregation between equipment carrying current of different types or at different voltages to be segregated if they are grouped together in a common assembly It is noted that this requirement also existed in the 1934 edition of the Wiring Regulations It is not anticipated that switchgear or other LVDC equipment will be contained in the same assembly as mains power circuits Thus this regulation is not considered to be relevant Chapter 51 of BS 7671 also contains requirements concerning the identification of circuits and use of warning notices Although there are no specific requirements for notices identifying the presence of LVDC circuits it is suggested that notices are fixed at both the mains supply point and the d c control gear warning of the presence of mixed a c and d c circuits This suggestion is made because the installations will be of an uncommon nature Section 444 of BS 7671 contains requirements and recommendations for the avoidance and reduction of electromagnetic disturbances The requirements of this section are primarily concerned with avoiding disturbances on IT and communications systems as well as equipment containing electronic components or circuits These requirements are not directly relevant to the type of mixed mains and LVDC circuits that are proposed However they do highlight the possibility of an interaction between the two types of circuit when they are in close proximity This interaction is discussed belo
70. er Soe Battery 23 me LE T lt 11 1 i Xtender 2 Xtender 2 Xtender 2 L3 38 1 Au ACIN AC OUT Aux Au ACIN AC Our Auxt ACIN ACOUT LON QN 666 Power Gird 3 Phase Refer to Chapter 5 3 7 DC Network Connection for integration with the DC system Figure 11 Typical 3 phase Inverter connections So La Bristol Functional Design Specification 34 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 3 5 Charge Controller See Chapter 5 3 5 6 3 6 Battery Batteries The battery configuration to be installed throughout the commercial properties is expected be as follows 16 x 130 12V DC batteries of which two are connected in series and connected to common bus bars to create a nominal 24V DC system see Figure 4a The size of the battery bank shown below is dependant on the survey results in some cases it may not be necessary to install There is also an option to reconfigure the system as a 48VDC network rather than 24VDC as a worst case Also see Chapter 5 3 6 for further information on the battery system o 12v 12v r E 12 12 o 12v 12v Figure 12 Battery Connections Refer to Chapter 5 3 7 DC Network Connection for integration with the DC system So La Bristol Functi
71. er substation is connected which provides measure ments of voltage and power to the LV Network Manager 7 e The LV Network Manager monitors the local measurements it receives and those received from LV Connection Managers at premises on the LV network to identify when the LV network reaches con straint points These may be voltage and or thermal constraints and may be caused by an excess of load or an excess of generation It then makes requests of the LV Connection Managers to adjust their load position to correct any constraint situations 4 2 System Operation The LV Connection Manager and the LV Network Manager provide the intelligence which allows the network to operate flexibly to overcome the problems under investigation The remaining components while key to delivering the solution respond to the instructions of these elements The LV Network Manager determines when a constraint is reached and determines where response is needed and requests that response The LV Connection Manager takes requests for response and turns those into actions by the equipment which is controllable in the premises SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 10 22 wa nv 4 33 Demand Response While distributed electrical energy storage is the principle resource for responding to network needs part o
72. esign Specification 17 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 5 Charge Controller DC DC Converter The Charge Controller or DC DC Converter is necessary to protect the batteries from overcharging and to supply them with the correct voltage energy to promote battery life see Figure 3 A Charge Controller is used to maintain the correct charging voltage on the batteries in this case 24V DC the brighter the sunlight the higher the voltage the solar cells produce This excessive voltage could damage the batteries if it is not regulated and controlled As the input voltage from the solar array can vary from 0 to hundreds of volts DC the charge controller regulates the input to the batteries to 24V DC to prevent any over charging The Charge Controller can also set the minimum and maximum charging limits of the batteries as well as open circuit the PV from the DC network to cease charging of the batteries The specification of the unit is shown below the figures are based on the 2kW block designed for use on the domestic properties and will accept a PV array from 1 5 2 5kW The commercial systems will aim to utilize a similar design by modularising and duplicating up to achieve higher powers Though provisions are also in place to design a single unit would be suitable for all commercial installations the application of either will
73. ets See Figure 2 e Load Management by either charging discharging the batteries from the PV or to from the AC Grid network see DR chapter 5 3 1 1 and monitoring the power used by the secure load i e lighting circuits 2 Using the measured actuals of the PV voltage output create a Generation Forecast for the following day s It is envisaged that a weekly average will be taken this will provide an idea of the future yield based on recent data which has been provided from the installation Using a system such as this will provide relatively accurate results for the end user Gathering readings over a short term will allow the system to be adaptable rather than providing an expected average the output should show the actual peaks and troughs of the system at different points within the year 3 Load Forecasting by predicting the electricity demands of the home for the next day including any Low Carbon Tariff LCT demands 4 Send data signals to an Energy Monitor App Web page to display the DC energy used and generated within various points within the system The App is to be installed downloaded on to the IT tablet KWMC are working to create the user interface page Further discussions are required between KWMC Moixa and Siemens to completely understand how the data will be provided and what the completed output will be 5 Any data within the Smart Hub that is being transmitted throughout the system should be stored and tra
74. f the solution being tested is demand response DR which is the ability of electrical equipment to modulate its load on the system in response to system needs and requests The phrase is often used interchangeably with demand reduction but DR may also include increasing load in response to system need There have been and are ongoing other studies 2 on the social aspects of DR and the depth of capability which they may offer This project is not concerned with this but rather to demonstrate and test the technical feasibility of integrating them within a system for management of the distribution network This extends to whether the speed and duration demanded for network purposes is compatible with supply quality expecta tions of load customers Network planning activities for low carbon technologies frequently produce planning output with the con straint conditions described in section 1 reinforcements are required for these developments to proceed Allowing the developments without reinforcement requires alternative methods of ensuring that the con straints do not occur which is the basis for the technology trials of this project When there is low incidence of low carbon technologies constraints at the planning stage may not necessar ily result in actual constraint conditions in practice However as the quantity of these premises increases actual constraint conditions will become more prevalent The frequency duration and nature of const
75. he shelf components as necessary to achieve the required functionality 5 7 LV Network Manager Description The function of the LV Network Manager is to identify constraint conditions within the LV network and attempt to resolve them by calling on the capabilities of customers connected to the LV network managed by LV Connection Managers Section 1 describes the specific constraints that the LV Network Manager seeks to highlight and mitigate These are repeated here 1 Excess generation over load on local network resulting in 1a Voltage upper limits exceeded and or 1b Thermal limits exceeded power import and 2 High peak load resulting in 2a Voltage lower limits exceeded and or 2b Thermal limits exceeded power export The LV Network Manager will receive measurements locally from the distribution substation transformer and from those premises with LV Connection Managers Additional measurements may also be required from other premises at the ends of feeders These measurements will be used to determine if any of the con straint conditions 1a 1b 2a or 2b are reached and if so will attempt to redress the associated cause 1 or 2 by changing the power flow from to premises under control of the scheme via their LV Connection Man agers The LV Network Manager will be installed at a distribution substation or transformer It will need to employ components suitable for such deployment and housed in an appropriate enclosure It
76. highlighting the specific issues which the project seeks to solve a simplistic piece of radial tapered LV feeder is depicted with distributed loads which are all assumed to be equal Figure 1 It is further assumed that some of these properties have generation which may be active for some of the time This is shown in the top part of the figure The second part of the figure represents the distributed load at each property along the network in red and the generation green In the third part of the figure the resulting power flows along each section of network is shown in blue when there is no generation output and in purple with generation The cable thermal limits are also shown on the diagram Finally the bottom part of figure shows the resulting voltage profile in blue without generation output and purple with output and again operational limits are shown As introduced in section 2 of the proforma the introduction of low carbon technologies are expected to result in two specific cases with impacts on the LV network These are listed below along with the resulting effects that this project will address 1 Excess generation over load on the local network resulting in 1a Voltage upper limits exceeded and or 1b Thermal limits exceeded power import and 2 High peak load resulting in 2a Voltage lower limits exceeded and or 2b Thermal limits exceeded power export Three of these effects are highlighted in the power flow an
77. ic Generation Commercial Property Roof DC Switch Commercial Property Replace existing light switches LED T5 Tubes LV Network Manager AC Meter s P50 GPRS Router Commercial Propert Substation Existing Ceiling Modules Wall Mounted Wall Box Table 4 Equipment Hardware locations So La Bristol Functional Design Specification Document reference G85221 B0001 M001 32 of 40 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 3 Within the commercial properties The system will be configured in accordance with Figure 10 and Figure 2 Figure 2 shows the Dataflow and Functions contained within the LV Connection Manager amp Load and Battery Manager 6 3 1 LV Connections Manager See Chapter 5 3 1 6 3 1 1 Demand Response See Chapter 5 3 1 1 6 3 1 2 Communication interfaces See Chapter 5 3 1 2 6 3 2 Load and Battery Management The Load and Battery Manager that will be installed into the Schools and Office will be of similar design functionality communications as the Load and Battery Manager installed into the homes However for all commercial installations DC DC power supplies will be provided 32 will be provided per office and 24 per school Further investigation will inform of any specific property requirements A connection will be made from the PC to the LVDC network these cables will be based around
78. ing an industry standard RS232 port The Hub has an additional RS485 port to allow connection to an external control unit the Siemens eMic device The hub unit runs customised software package to provide forecasts of load and generation for the local system The unit also provides optional functionality ethernet USB ports an SD card is used to host the OS andis externally accessible and zigbee comms can optionally be included Certification compliance lab r amp d trials Country requirements on request STUDER Innotec SA Xtender 21 TECHNICAL DATA Inverter model Nominal battery voltage Input voltage range Continous power 25 C Power 30 min 25 C Power 3 sec 25 C Maximum load Maximum asymmetric load Load detection Stand by Cos Maximum efficiency Consumption OFF Stand by ON Output voltage Output frequency Harmonic distortion Overload and short circuit protection Overheat protection Battery charger Charge characteristics Maximum charging current Temperature compensation Power factor correction PFC General data Input voltage range Input frequency Input current max transfer relay Output current max Transfer time UPS Multifunction contacts Weight Dimension h x w x mm Protection index Conformity Operating temperature range Relative humidity in operation Ventilation Acoustic level Adjustable value XTS 900 12 XTS 1200 24 XTS 1400
79. ing touching a twin and earth cable The calculated voltages given in Table 1 are directly proportional to current and the distance over which the circuits run in parallel So if the load current was increased to 100 A the induced voltage would be increased by a factor of five giving an induced voltage of 0 215 V for a 100 mm separation Similarly with a current of 100 A and a length in parallel of 100 m the induced voltage would be 2 15 V The magnitude of the induced voltages given above show that inductively coupled voltages are not a cause for concern in the proposed installations Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 10 ERA Technology Ltd ERA Technology Report 2012 0479 E m A Commercial in Confidence TECHNOLOGY In addition to the points discussed above induced voltages are a function of frequency thus the LVDC circuits will not induce a voltage on the mains circuits 3 Conclusions The review of the requirements of BS 7671 has not revealed any regulations that would prevent the wiring of the proposed installations complying with BS 7671 Consideration of the magnitude of the induced voltages in the LVDC circuits has shown that these voltages would be measured in millivolts rather than volts and hence they are not a safety issue Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 11 ERA Technology Ltd ERA Technology Report 2012 0479
80. int situations The technology for the sensing equipment is Siemens Simeas P50 AC meter and will mounted on the front face of a new wall box to allow for the AC measurements to be viewed and passed onto the LV Network Manger Current Transformers CT s will need to be fitted onto the Feeder outgoing AC cable s The CT s could be a solid core split core Rogowski or optical fibre based current sensor and must be compatible with the meter refer to SIMEAS P 7KG775x System Manual E5041 7 B1076 C340 A4 for Current Voltage input measuring ranges and input connections Western Power Distribution are supplying and installing the CT s within the substation Up to 5 meters can be installed this is dependent on the number of feeders used for this trial Send measurements via GPRS to from the LV connections Manager and to the Data Concentrator located in the local substation and Bath University respectively Additional requirements will include the measurement of the harmonics since one of the hypotheses is that the use of DC networks can improve power quality So La Bristol Functional Design Specification 28 of 40 Document reference 285221 0001 001 Issue 4 Siemens STDL IC SG EA Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 5 3 9 1 Communication interfaces The LV Network Manager will communicate to the LV Connections Manager via the GPRS router using IEC60870 5 104 protocol The communicatio
81. is aware that accessories such as switches circuit breakers and other control gear must be capable of operating safely in DC applications 2 2 BS7671 Regulation 528 1 of BS 7671 2011 contains a requirement that a Band I circuit shall not be contained in the same wiring system as a Band II circuit The LVDC circuits would fall into Band I and the ring main and other 230 V circuits would fall into Band II This regulation allows a number of exceptions The first exception is that it is permitted to mix the circuits if every cable or conductor is insulated for the highest voltage present Thus Regulation 528 1 permits the mixing of LVDC circuits with low voltage power circuits such as ring mains or radial power circuits Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 7 ERA Technology Ltd ERA Technology Report 2012 0479 E A Commercial in Confidence TECHNOLOGY The requirements given in 528 1 have been in existence since at least the 10 edition of the Wiring Regulations 1934 This edition also permitted the circuits to be mixed when the extra low voltage circuits were insulated for the highest voltage present It is believed that these requirements were put in place to minimise the risk of mains voltage being transferred to the ELV circuits in the event of a fault It is considered that these requirements do not relate to any EMC issues that may occur Regulation 515 2 of BS 7671 2011 r
82. ischarge battery 2a voltage lower Decrease 2 High peak limits exceeded defer load Export reactive load power 2b thermal limits Decrease Diseharae batter exceeded defer load 9 Adjust load to Charge discharge 3 Need to profile match availability of LC battery to availability ity of low carbon generation energy of LC energy SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 17 22 The LV Connection Manager will be housed in each premises in the trial close to the electrical point of supply It is anticipated that this will be internal to the premises although for some supply arrangements an external enclosure may be required Requirements The outline requirements for the solution are as follows Essential requirements e Able to optimise the factors listed in the above Description e Able to manage the resources of the premises in support of the Network Use Cases e Able to communicate with the LV Network Manager e Able to communicate integrate with the other components in the premises e Appropriate for deploying in unmanaged domestic and non domestic premises Desired requirements e Ofa size and form to facilitate deployment at point of connection Technology Source The LV Connection Manager will be based on Siemens automation hardware integrating other off t
83. ject aim is to address the technical constraints that DNOs expect to arise on Low Voltage networks as a result of the adoption of solar PV panels The trial uses in home battery storage to provide benefits to customers and aid the DNO with network management Thirty houses ten schools and an office will have solar PV and a battery installed The solar PV will be connected directly to the battery using a DC connection The AC lighting circuits in the premises will also be converted to DC to enable customers to run small appliances on DC directly from the PV battery The battery will be shared between the customer and the DNO The customer will be provided with a variable tariff to encourage electricity use at times of high PV generation and to use electricity stored by the battery when the network is heavily loaded The DNO will be able to communicate with the battery to charge and discharge it to help with network management Document Purpose The information contained within this document is intended to provide detailed knowledge on e The design of individual components e The designed capability of the equipment being installed e The capability of the DC network and the connection of equipment to it The connection of individual component to create the system e The location of equipment in a typical property Thursday 27 September 2012 Page 3 of 101 SoLa Bristol Technical Design The design has been developed with our partners
84. lamps Osram Standard switches through Conn Mgr Siemens TM 1703 e mic 6b Load Mgmnt Moixa poss incl battery management 8 GPRS router commodity supply 10 AC metering Siemens Simeas P55 11 Isolator 12 Battery fuses AC Distribution Out of scope CT for AC metering WPD FM DC Feed in Tariff Meter Eltime EL 96GT 400 230V 3 Bath HV primary University distribution I Existing supply point I 4 space Figure 10 Substation and Domestic Solution So La Bristol Functional Design Specification 31 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Equipment Hardware Description LV Connection Manager Load amp Battery Management GPRS Router DC Miniature Circuit Breaker AC Meter P55 Geographic Location Commercial Property Fixing Location To be confirmed after site visit Housing type Consumer Unit Siemens STDL IC SG EA Client Project Nr 77 03125 Batteries Inverter Charge Controller Commercial Property To be confirmed after site visit Feed In Tariff Meter Commercial Property To be confirmed after site visit Photovolta
85. likely to change frequently E amp EE Page 1 Project BRISTOL Appendix C Technical Overview Version 2 00 Solution Outline Status Released Page 1 22 Copying of this document and giving it to others and the use or communication of the contents thereof are forbidden without express authority Offenders are liable to the payment of damages All rights are reserved in the event of the grant of a patent or the registration of a utility model or design Solution Outline Product Function Overall Technical Solution Project Project BRISTOL Buildings Renewables and Integrated Storage with Tariffs to Overcome network Limitations Document status Released The document passes through the following states Being Processed In Review and Released Document for external publication internal references removed Revisions Chapter Pages Version Object and Reason of Change changed Reference to Change Requirements V1 00 Issued to client for review V2 00 For publication SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 2 22 Contents 2 LV DISTRIBUTION 3 DESCRIPTION OF SUBJ ECT PROPERTIES nennen 3 1 Domestic Properties Ia asa ee ca aea E cu redet ca e cud cea tee 7 3 2 fem
86. logy Report 2012 0479 A Commercial in Confidence TECHNOLOGY ERA Technology Limited 2012 All Rights Reserved No part of this document may be copied or otherwise reproduced without the prior written permission of ERA Technology Limited If received electronically recipient is permitted to make such copies as are necessary to view the document on a computer system comply with a reasonable corporate computer data protection and back up policy and produce one paper copy for personal use Distribution List Client 1 Project Engineer 1 Information Centre 1 DOCUMENT CONTROL Distribution of this document by the recipient s is authorised in accordance with the following commercial restrictive markings Commercial in confidence No distribution or disclosure outside of the recipient s organisation is permitted without the prior written permission of ERA Technology Limited Distributed in confidence Distribution of the document shall be in accordance with the document distribution list and no further distribution or disclosure shall be allowed without the prior written permission of ERA Technology Limited Recipient in confidence ERA Technology Limited distributes this document to the recipient on the condition that no further distribution or disclosure by the recipient shall be allowed Where specified the document may only be used in accordance with the Purpose of Distribution notice displayed on the cover p
87. ls and office i DC DC ICT Power Supplies GPRS e 2 Figure 15 Commercial properties Communications Detailed Architecture So La Bristol Functional Design Specification 40 of 40 Document reference G85221 B0001 M001 Issue 4 N c 02 3 4 S f 9 v ll nmt PV ARRAY EXISTING ISOL SW 1 150 600VDC 4 x PRE MADE CABLES SUPPLIED BY BATTERY MANUFACTURER SKT1 ity for errors or omissions No part may be reproduced or used except BATTERY CONNECTION PV CONNECTION SKT2 EXISTING CABLE ion Ltd and is supplied withot ictions on reproduction and use extended to all media in which the information may be embodied SIEMENS 2008 TTITTITITTTITTITTHTTITITII 8 i i EXISTING COMM S CABLE 5 TWISTED PAIR INTER TO NEW CONSUMER UNIT F1 F2 F4 xpi F8 CONNECTOR B s 222 xi D C 2008 The information Contained herein is the property of Siemens Transmission and Distri as authorized by contract or other writer permission The Copyright and the foregoing re 1000000009009 0 DC CONSUMER AC EXISTING 3 4mm ISOL SW 2 TWIN amp EARTH AC EXISTING CABLE 3 CORE 4mm TWIN amp EARTH TO EXISTING ISOL SW 3 CORE 4mm 3 CORE 4mm 50mm CABLE TWIN amp EARTH TWIN amp EARTH lt 3 METRES d 10mm CABLE LUG AC INPUT LE
88. n Western Power Distribution is embarking on a project to demonstrate the use of Low Voltage d c and battery storage systems in domestic properties schools and an office The LVDC system is intended for use in lighting and small power applications and is intended to avoid the need for d c a c converters The project is being supported by the Low Carbon Network fund BRISTOL ERA has been asked to provide consultancy relating to the requirements for separation between a c and d c circuits and address safety concerns such as induced voltages ERA has been informed that the majority of properties where the concept is to be applied were constructed between 1920 and 1945 and all have been rewired Most of the rewiring was approximately 15 years ago and it is known that existing lighting and power circuits are run in common conduits or trunking for at least part of the circuit length The lighting and power circuits are also likely to run through common holes in joints and generally there will be no physical separation between different circuits for at least part of their run 2 Review 2 1 General It is intended that the existing lighting circuits will be used to feed the LVDC applications Provided that the circuits are in good condition and have adequate current carrying capacity and no excessive voltage drop there is considered to be no fundamental reason why these circuits should not be operated at 24 V d c Western Power Distribution
89. n must comprise the lamps or modules with any required regulating equipment control modules and switches or contactors with DC capability for operational switching The principal role identified for DC lighting within the project is as a load suitable for supplying from DC with benefits of reduced transformation losses and harmonic emissions In some instances lighting could also form a resource for demand response Requirements The outline requirements for the solution are as follows For the lamps with any required control module Essential requirements e Nominal 24 VDC e High luminous efficiency Desired requirements e Ability to dim If a control module is used the following is additionally desired of it Safety extra low voltage SELV Isolation e High efficiency e Remotely controllable dimming For the operational switches Essential requirements e Capable of switching DC Desired requirements e Fits standard UK pattresses SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 16 22 SS Technology Source To confirm the project feasibility enable budget costing and reduce technical risk the following technology has been identified that is capable of meeting the requirements However a full procurement exercise will be undertaken during the project LED or DC compact fluorescent lamp
90. n the existing wall bench trunking Secondly DC USB Desk Hubs connected to the DC system can be located on top of desks or near a Laptop Charging trolley The USB sockets Desk Hubs will be monitored controlled via the Load and Battery Manager Existing 240v AC sockets circuits to be assessed before final design can be submitted e The LV Connection Manager communicates with the LV Network Manager see Figure 10 to control influence the operating mode charge discharge of the battery via the Load and Battery manager inverter see Figure 10 item 2a amp 6b and any loads which it can including smart appliances see Figure 10 item 3 controllable AC loads such as intelligent appliances and any controllable DC lighting e The LV Network Manager located in the distribution substation see Figure 10 communicates with the LV Connection Manager see Figure 10 item 7 viaa separate GPRS communication module see Figure 10 item 8 e On the network side of the import export meter IEM sensing equipment see Figure 11 item 10 is connected which provides measurements of voltage and power to the LV Connection Manager see Figure 10 item 10 So La Bristol Functional Design Specification 37 of 40 Document reference 285221 0001 001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Common BusBar PV Photovoltaic generation Network operator distribution m IEM Import Export Meter AC C
91. nclosure with metal backplate 600 600 200 Wall mount kit WDK 2 5 Double Terminals 1021500000 End Plate 1059100000 WPE 4 0 Earth Terminal 1010100000 100A DP Switch Disconnector Single Phase Connection Kit 16A Single Module RCBO 30mA Sensitivity 6A Single Module RCBO 30mA Sensitivity 16A DC Double Pole MCB 6A DC Double Pole MCB 8A DC Double Pole MCB Y bus cables RS485 Bus RS485 terminator Patch cord Cat 5e UTP PVC 0 5m Green MONITOR CABLE 316 9MM ST ST MONITOR EXTENSION DB9 F F Y Adapter Cable MDF Cover O N 9 mo nm nm nm MYND AVYANNNNNND Phase Ref Manufacturer Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Siemens Dell Vodaphone Rittal Rittal Rittal Rittal Rittal Rittal RS RS Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller Weidmuller WPD BRISTOL Procurement Schedule Substation Installations Part Number 6MF11130GA140AA0BB 6MF12131GA050AG0 6MF12110CJ600AA0 7KG7750 0AA03 0AA1 6MF10130CF560AA0BB 6MF10130AF510AA0BB 6MF11112AJ200AFO 6NH9741 1AA00 6NH9870 1AA00 6EP1333 2BA01 7XV5103 0AA01 7XV5103 5AA00 5SY5204 7 6MF1807 0GB02 0AA1 6MF18070GA340AA1 6MF18070GA250AA1 6MF18
92. nctionality and behaviour of the equipment installed and connection of equipment in the loft area Component Information Schematic and wiring diagrams for key components Supplementary Information Supporting documentation relating to the design Supplier Documentation Operating guides data sheets and user manuals of SoLa BRISTOL components Note All AC cables operating at DC will have Brown sleeves for L and Grey sleeved for L Thursday 27 September 2012 Page 4 of 101 SoLa Bristol Technical Design Document Provision Design Appendix 1 Project Specific Descriptions Document Reference G85221 B0001 WW9 M005 G85221 B0232 H1 Q001 004 A 2 Component Information Document Reference 3PE 2630 00 GA 2PE 2630 00 CD A2 PSKT004B USB Data Sheet Draft 0 9 3PE 2630 01GA 2PS 125 0100 STSR 00 G85221 B0232 H1 Q001 003 A BMSHUBO002 LCNF SA 2012 V4 1 2 G85221 B0232 H1 D001 001 A G85221 B0232 H1 Q001 001 A G85221 B0232 H1 D001 002 A G85221 B0232 H1 Q001 002 A 3 Supplementary Information Document Reference 770 2A G85221 B0007 WW9 L001 2012 0479 CP10679 C of C Test Topology Overview SoLa Bristol System Efficiencies LCNF Bid Overall Technical Solution Appendix C Thursday 27 September 2012 Description Page Functional Design Specification Substation Domestic and 7 of 101 Commercial Installations Wiring Diagram Loft Hardware Interfaces 47 of 101 Description Page Bat
93. ngle socket typically 5 35 DC 3 Amp socket for charging PC Laptops Each SK001 to be mounted on a plate to fit and supplied with a UK Standard surface mount back box See Chapter 5 3 2 1 for communication hardware interfaces 5 3 2 1 Communication interfaces The Load and Battery Manager will communicate to the LV Connection Manager via a serial MODBUS protocol using RS485 9 way Female D Type The communications to the Studer Inverter will be via its propriety protocol using RS232 9 way Female D Type Communication to the IT tablet will be via a separate WI FI Router HUB so that a Web page can be updated in real time Chapter 5 3 3 See Chapter 5 3 8 Communications for all Protocols and connection types So La Bristol Functional Design Specification 15 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 3 GPRS Router A Billion BIPAC 7800GZ GPRS Router see document BILNJ7800G will be connected to the LV Connection Manager and used to communicate to the LV Network Manager within the substations see Figure 1 and Chapter 5 3 8 Communications This communication channel will allow the LV Network Manager to issue requests for action to alleviate constraints on the power grid system and to log report on actions taken in response to these requests The signals to be sent between the LV Network Manager and the LV Connection Manager are voltage c
94. ns to the Siemens Simeas P55 AC meters via RS485 using IEC60870 5 103 protocol See Chapter 5 3 8 Communications for all Protocols and connection types Siemens scope 1 DC fuses commodity supply Conn Mgr Siemens TM 1703 e mic 6b Load Mgmnt Moixa poss incl battery management 6c Net Mgr Siemens TM 1703 6d AC metering Siemens Simeas 50 8 GPRS router commodity supply 33 kV and above 10 AC metering Siemens Simeas P55 HV primary Bath distribution University 1 i I i GPRS External comms P Existing supply point space Distribution Existing supply point space Distribution T substation voltage Figure 9 LV Network Manager Connections So La Bristol Functional Design Specification 29 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 5 3 10 Data Concentrator The Data Concentrator will form the system for logging metering operational data and allowing access to this data for trial evaluation purposes Figure 7 shows the expected location for the data archive and the communication links with the various devices being monitored The Data Concentrator is based on the Siemens SICAM 230 SCALA software system and will be installed located on a c
95. nsmitted securely recognising that the privacy of customer s data is of paramount importance and appropriate authentication mechanisms to access the data are required 6 Send data signals via serial communications MODBUS to from the LV Connections Manager that will be passed on to the Data Concentrator at Bath University via the GPRS communications network 7 Beofsimilar size design to that of the Siemens ACP TM e mic whereby it will be DIN rail mountable with visible power health communication LED s See document MC6 049 2 TM e mic System Description chapter 7 1 2 Mechanical Design So La Bristol Functional Design Specification 14 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 8 Receive data signals from the Desk Hub 003 and or USB3 SK001 sockets via Zigbee communications to monitor the DC load profiles located within the commercial properties Moixa Smart Hub will have the following DC voltage interfaces A points listed below are subject to further discussion between WPD and Siemens e 1 10 35v DC power socket to power the Smart Hub The following lists the types and number of external DC Voltage sockets e 3 x SK002 double USB sockets 5v DC 1 Amp per socket for charging the Tablet Mobile Phone Each SK002 to be mounted on a plate to fit and supplied with a UK Standard surface mount back box per SK002 e 1x 5 001 si
96. ntroller SWGR Switchgear LVNM LV Network Manager LVCM LV Connection Manager DNO Distribution Network Operator DR Demand Response V Voltage CFL Compact Fluorescent Lamp LC Low Carbon LCT Low Carbon Tariff CT Current Transformer LV Low Voltage LED Light Emitting Diode So La Bristol Functional Design Specification Document reference 285221 0001 005 6 of 40 Issue 4 Western Power Distribution Client Project Nr 77PO 03125 5 FUNCTIONALITY OPERATION 5 1 Domestic Siemens STDL IC SG EA This section identifies the components which are to be used their functions and combined interactions 5 2 Components Network operator distribution Supply metering Loads premises distribution PV Photovoltaic generation IEM Import Export Meter FM Feed in Tariff Meter SM Sub metering Wired communication Controllable loads Low carbon generation Wireless communication Storage power electronics South facing roof Siemens scope 1 DC fuses commodity supply 2a Inverter Studer XTS 2400 24 Xcom 2b Battery Exide Sonnenschein SB12 130 4off 2c Charge controller Morningstar TS 45 2off 3 Smartappliance unknown alt commodity remote controlled adaptor 4 DC sockets likely through Moixa 5 LED lamps Osram Dimmable switches Moixa Standard switches through Moix Existing supply point space Bath University AC Distri
97. oltaic generation Network operator distribution IEM Import Export Meter AC Cabling 240v FM Feed in Tariff Meter DC Cabling 24v SM Sub metering Low carbon generation Wired communication Storage power electronics Wireless communication Product Descriptions 1 Consumer Unit 8 AC DC MCBs 2a Inverter 2b Battery 2c Charge controller 3 Smart appliance 4 DC sockets 5 CFLlamps Standard switches LV Connection Manager 6b Load Management 7 FiT Generation DC Meter 8 GPRS router 10 AC metering 11 Isolator 12 Battery Fuses Standard AC Distribution Figure 5 Typical AC DC system connections So La Bristol Functional Design Specification 23 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Lighting Circuit DC Distribution 24V DC Radial Circuit Ceiling Ceiling rose AC Original Distribution 240V AC Connection M itct 7 CFL Lighting Wiring Bulb Ceiling rose From Distribution Board Radial Circuit 26 DC Switch Figure 6 Lighting system connections The design of the DC lighting system has allowed for variation the ideal scenario being the end user has a degree of control over the installation and it can adapted to suit individual requirements In order to do this safely any proposed bulb lamp must be factored into the circuit As
98. omputer server housed within Bath University Requirements The outline requirements for the solution are as follows Essential requirements e Able to receive data from all the LV network managers LV connection managers LV network instruments and customer premises instruments e Able to be accessed by the relevant project partners as part of the evaluation of the trial results e Logged Data will be exported from the SICAM 230 SCALA software in excel or csv format e Data should be stored securely recognising that privacy of customer s data is of paramount importance and appropriate authentication mechanisms to access the data are required The information listed below is the current specification of the PC which forms the data concentrator This specification could potentially change though the machine supplied will be of the quality listed below as a minimum Precision T3500 Standard Base Mid Tower Vertical orientation Components 1 Processor One Intel Xeon W3530 2 80GHz 4 8GT s 8MB 4C Memory runs at 1066MHz 1 Memory 2GB 2x1GB 1333 2 DDR3 ECC UDIMM 1 Hard Drive 250GB 3 5inch Serial ATA 7 200 Hard Drive 1 Additional Hard Drive 250GB 3 5inch Serial ATA 7 200 Rpm Hard Drive 1 Raid Controller Not Included SAS Internal Controller Card 1 Raid Controller C7 All SATA Hard Drives RAID 1 Mirroring for 2 Hard Drive 1 Optical Drive 16x DVD RW Drive 1 Kensington Clicksafe Notebook Lock 1 Asset Tag ProSup
99. onal Design Specification 35 of 40 Document reference G85221 B0001 M001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 3 7 DC Network Connections The DC network comprises of a number of components as described throughout the document The physical connections are detailed below During day light hours the DC system will be fed directly from the PV array located on the roof of the property As the output of the array is entirely dependant on the solar irradiance the PV array must be provided with electrical isolation for its DC output in this instance the existing mechanical isolator will be utilized See Figure 13 item 11 The charge controller s DC DC converter see Figure 13 item 2c fulfils two functions Firstly controlling the amount of power being supplied into the batteries ultimately stopping the battery bank from being overcharged Secondly adjusting the voltage dropping the PV output of 150v DC 40v to the system voltage of 24v DC The communication protocol will be MODBUS over a RS232 connection Within the consumer unit a connection will be made to the LV Connection Manager in turn this will transfer data to the Load and Battery Manager This unit is yet to be designed the functionality will represent that of the domestic unit though the size will differ The batteries are connected through a series of fuses Towards the charge controller fuses will be provided
100. port RS485 port DC input AC DC Nominal 24V OFF SWITCH 000 00 SYSTEM RESET j MODE SWITCH j Ethernet port 2x USB ports SD card OS for system O o s O TBC 60mm TBC 190 mm TBC 110mm www moixatechnology com Moixa Technology Ltd 110 Gloucester Avenue London NW1 8HX UK Tel 0207 734 1511 Email info moixaenergy com Moixa Technology Ltd Commercial in Confidence Proprietary and Patent Pending Technology e g US20100076615 BMSHUBO02 I 7igbee comms safety BMS unit Control of external inverter Interface with Modbus Ethernet port indicative image Specifications Processor Memory Storage OS ARM9 based linux module running custom distro Open Embedded 256MB ram 4GB SD card used for OS PIC32 based low level interface board with PSU I O interfaces RS232 interface configured for Studer inverter unit RS485 interface configured as Modbus slave 2x USB ports 1x ethernet port Zigbee module join button internal external antenna System off switch Mode select multi function input button Fault LEDs with reset button paperclip type Power Input jack for DC power requires input between 12 and 30V DC Nominal power requirement 5W Mounting The unit is provided with standard 30mm Din rail mounting brackets on the rear System summary Customised version of the standard Moixa BMS Hub unit designed to control an external inverter unit us
101. port Website barcode Onboard Mac Address 1 Graphics 256MB NVIDIA Quadro NVS 295 2DP 2DP DVI adapter ULGA9 1 Audio Integrated sound card Software 1 Windows Live for Windows 7 1 Optical Software PowerDVD Software for Vista Home Premium and Ultimate WIN7 Home Premium Pro or Ultimate 1 Optical Software Roxio Starter Software 1 Operating System English Genuine Windows 7 Professional 32 OS 1 OS Media MUI Windows 7 Professional 32Bit OS Resource DVD So La Bristol Functional Design Specification 30 of 40 Document reference 285221 0001 001 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project 77 03125 6 COMMERCIAL FUNCTIONALITY OPERATION 6 1 Commercial This section identifies the components which are to be used within the commercial premises their functions and combined interactions Any items which differ to those listed within the Domestic sections are covered in further detail here Throughout the document the term Commercial refers to both the Office and School installations 6 2 Components PV Existing Siemens scope 1 DC fuses commodity supply 2a Inverter Studer XTS 3400 24 Xcom 3off 2b Battery Exide Sonnenschein SB 12 130 16off 2c Charge controller Morningstar TS x x 3 Smart appliance unknown alt commodity remote controlled adaptor 4 DC sockets likely through Moixa 5 LED
102. r as part of its management of the distribution network and secondly as part of the collection of trial data to measure the effectiveness of the intervention methods For the LV network management the required data will be voltage of the busbars and real and reactive power flow into each phase of each feeder under management These measurements will be concerned with RMS values only For the collection of trial data the requirements will include measurement of harmonics since one of the hypotheses is that the use of DC networks can improve power quality It is possible that the differing requirements programme timing and cost implications result in separate sets of sensors and instrumentation for each purpose Requirements For network management Essential requirements e Measurement of voltage real and reactive power true RMS e Averaging period maximum 1 second e Instantaneous values only required e Capable of fitting without customer interruption For collection of trial data Essential requirements e Measurement of voltage including harmonic content e Measurement of real and reactive power true RMS e Averaging period minimum 1 minute e All data to be logged continuously and time stamped e Time stamps within each cell to be synchronised with 20 millisecond accuracy Desired requirements e Measurement of real and reactive power including harmonic content Technology Source To confirm the project feasibility enable budget costing
103. r publication SIEMENS Project B RISTOL Version V2 00 Solution Outline Status Released Page 4 22 1 Introduction This document provides an overview of the proposed technical solution for Western Power Distribution s WPD s Tier 2 LCNF project Buildings Renewables and Integrated Storage with Tariffs to Overcome network Limitations BRISTOL It has been compiled from information and input provided by all the project partners Western Power Distribution University of Bath and Siemens The information contained in this document is intended to demonstrate the technical feasibility of the project The technical solution will be the subject of a detailed design phase within the Implementation phase of the project SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 5 22 2 LV Distribution Network Section 2 of the submission proforma describes the background to the project This section seeks to identify the specific network issues that the project will resolve WPD s existing tier 2 project Low Voltage LV Network Templates for a Low carbon Future seeks to characterise networks by features of customer load and generation and the network Outputs from this project will be a valuable input into this project by forming the basis for network modelling activities For the purpose of
104. raint conditions under these scenarios is not yet known and this project will also allow this to be quantified and hence establish which loads can provide the most appropriate demand response for the constraint Table 1 and Table 2 show the types of loads available in domestic properties in the UK from the perspec tives of demand reduction and demand increase respectively It is not expected that immersion heaters or storage heating will be available within the domestic properties under consideration for this project therefore these loads are not considered for the project 1 Energy Demand Research Project http www ofgem gov uk sustainability edrp Pages EDRP aspx 2 Sustainability First project on GB Electricity Demand SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project BRISTOL Solution Outline Version Status Page V2 00 Released 11 22 Table 1 Loads Appropriate for Demand Reduction Typical load Potential demand Load domestic DR method Typical availability reduction kW kW Peak Average Early morning Immersion heater 3 Interruption early evening 3 1 Storage heating 2 Interruption Nighttime 2 2 Tumble drier 2 5 Smart appliance Occasional 2 5 2 5 Dishwasher 1 requiring user Occasional 1 1 Washing machine 0 63 interaction Occasional 0 63 0 63
105. rk voltage profile and battery storage with demand response The LV Connection Manager will 1 Coordinated via the LV Network Manager to maintain network voltage profiles and reduce network peaks locally while taking into account variable tariffs 2 Coordinating with the Load amp Battery Manager to integrate the capabilities of the PV battery storage and the electrical demand and energy used to actively manage the real power profile to support the distribution network Demand Response see 5 3 1 1 and provide reactive power support to the network 3 Calculate if customers require any additional battery charging using off peak generation This will be done via fixed tariffs being programmed into the LV Connection Managers logic 4 Send data signals via GPRS to from the LV Network Manager located in the local substation The LV Network Manager will then forward this data to the Data Concentrator located in Bath University Further detail to be provided regarding the expected information on the logic and functionality So La Bristol Functional Design Specification 11 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Energy Monitor App Graphic required Numerical Information to be Yes No Display displayed Yes No PV Power Volts actual Yes Yes PV Power Volts over 24hrs Yes No PV Power Volts over 7 Yes No Days Battery
106. roof of the property As the output of the array is entirely dependant on the solar irradiance the PV array must be provided with electrical isolation for its DC output in this instance the existing mechanical isolator will be utilized See Figure 5 item 11 The charge controller DC DC convertor see Figure 5 item 2c fulfils two functions Firstly they control the amount of power being supplied into the batteries ultimately stopping the battery bank from being overcharged Secondly they adjust the voltage dropping the PV output of 100 150v DC 40v to the system voltage of 24v DC To communicate with this unit a 1 x 5 twisted pair cable 71150BK will be ran from the loft space to the expected area which the BRISTOL consumer unit will be installed The communication protocol will be MODBUS over a RS232 connection Within the consumer unit a connection will be made to the LV Connection Manager in turn this will transfer data to the Load and Battery Manager The battery housing is a separate unit from the control panels Therefore a wired connection links the two flowing through a fused link on each leg Three positive and three negative connections are provided as outputs from the unit these are ran via a disconnect These stud terminals are the DC outputs for the inverter consumer unit and G59 Protection Relay In addition to the above the supply is also fed to the inverter see Figure 5 item 2a both legs ve ve are connec
107. s Transmission and Distribution Ltd All Rights Reserved Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Revision Record Author Keith Waite Andrew Smyth Siemens STDL IC SG EA Approved Vincent Thornley Siemens STDL IC SG EA Date Comment 07 06 2012 First Issue 31 05 2012 WPD Distribution 11 06 2012 Commercial solution added 18 07 2012 Complete Document Distributed to WPD 12 09 2012 Design Review Update So La Bristol Functional Design Specification 2 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 Contents 1 2 2552202 para Pa D rade 3 2 N E 3 3 REFERENCES O Lau uu 3 4 DEFINITIONS AND ABBREVIATIONS J J 3 5 FUNCTIONALITY OPERATION 1 1er ren nn rur aasawa 3 5 1 DOMESTIC deem cte e d tne dut cie dde ERST 3 5 2 3 5 3 WAITHIN THE HOUSE asics dc Eo REESE uns Q E ER OU EN QO SSSON 3 LV HELLE ee SEED 3 Load and Battery Management
108. s that would prevent the wiring of the proposed installations complying with BS 7671 Consideration of the magnitude of the induced voltages in the LVDC circuits has shown that these voltages would be measured in millivolts rather than volts and hence they are not a safety issue Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 3 ERA Technology Ltd ERA Technology Report 2012 0479 A Commercial in Confidence TECHNOLOGY This page is intentionally left blank Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 4 ERA Technology Ltd ERA Technology Report 2012 0479 m A Commercial in Confidence TECHNOLOGY Contents Page No 1 Introduction 7 2 Review 7 2 1 General 7 2 2 BS7671 7 2 3 Electromagnetic effects 8 3 Conclusions 11 Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 5 ERA Technology Ltd ERA Technology Report 2012 0479 Commercial in Confidence ERA TECHNOLOGY Tables List Page No Table 1 Induced GAGES ae P 10 Figures List Page No Figure 1 Cable layout for example calculations 10 Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 6 ERA Technology Ltd ERA Technology Report 2012 0479 E A Commercial in Confidence TECHNOLOGY 1 Introductio
109. s will be accommodated close to the consumer unit a distribution board in the schools or office environment and the AC connection to the inverter will be via a dedicated way on the consumer unit or distribution board Requirements The outline requirements for the solution are as follows For the Inverter Essential requirements Controllable modes of operation charging battery exporting power e Anominal voltage of 24 VDC with a float boost fast charge voltage no higher than 30 VDC e Meets G83 G59 requirements for loss of grid Desired requirements e slanding capability on loss of grid to dedicated AC output e Controllable reactive power capability For the Battery Essential requirements e Sealed maintenance free e Anominal voltage of 24 VDC with a safe operating voltage range of 20 to 30 VDC Desired requirements e Appropriate lifetime with high depth of discharge Good capacity with fast discharge rate For the Charge Controller Requirements e nominal voltage of 24 VDC with an upper voltage no higher than 30 VDC SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 14 22 Technology Source To confirm the project feasibility enable budget costing and reduce technical risk the following technology has been identified that is capable of meeting the essential requiremen
110. tariff will be coordinated through the LV connection manager SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication
111. ted via fused links and installed in a small distribution board The cable is connected through a DC shunt which takes a signal to the FiT DC generation meter located within the loft space The inverter itself has bi directional AC and DC connections A further isolation point is provided between the batteries and BRISTOL consumer unit This will be in form of a double pole MCB rated around 10 Amps A Siemens Simeas P55 AC meter see Figure 5 item 10 is housed within the new BRISTOL consumer unit which allows for the AC measurements to be taken and passed onto the LV Connection Manager Current Transformers CT s will need to be fitted onto the house s incoming AC cable The CT s could be a solid core split core Hogowski or optical fibre based current sensor and must be compatible with the meter refer to SIMEAS P 7KG775x System Manual E50417 B1076 C340 A4 for Current Voltage input measuring ranges and input connections The inverter transforms the DC voltage to an AC voltage as described above outputting an AC maintained load output along with an AC voltage output back to the public distribution network via the bi directional AC input So La Bristol Functional Design Specification 21 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 e From the inverter a DC link is provided to the new BRISTOL consumer unit see Figure 5 item 1 This will be
112. tery Cable Transition box for 24 DC system 48 of 101 Circuit diagram for DC DC Converter with 49 of 101 battery protection and Isolation USBP k SB Power Socket 50 of 101 1T1R Cladded Stand to Accommodate 4 x 51 of 101 12SMG100 F Batteries Battery Layout for 2 5 128MG100 F STSR 52 of 101 Wiring Diagram New Consumer Unit 53 of 101 DC Manager Unit 55 of 101 Four Quadrant Inverter Data Sheet 56 of 101 General Arrangement for LV Network Manager 57 of 101 Wiring Diagram of LV Network Manager 58 of 101 General Arrangement for LV Network Manager Back plate 999110 Wiring Diagram of LV Network Manager Back 60 of 101 plate Description EcoHouse plan 61 of 101 Equipment Bill Of Materials 62 of 101 Technology Review of Mixed and DC 66 of 101 iring Certificate of Compliance Switches 78 of 101 Home amp Substation communications 79 of 101 SoLa Bristol System Efficiencies and losses 80 of 101 Proposed Technical Solution for the LCNF T2 81 of 101 BRISTOL Bid Page 5 of 101 SoLa Bristol Technical Design Supplier Documentation SoLa Bristol Supplier Documentation pdf Document Reference 3W 6WP LED EDC DC Light Bulb CFL LAB Megalux 081B SMG F EMEA 110518 40 970813 eng msds 210 01CPLEMPRO Comprehensive Guide BILNH7800G Communication Topology Notes C79000 G8976 C236 04 CL Cables Power Cables CL Cables Comms Cables E50417 B1074 C339 A4 E50417 B1076 C340 A4 MC6 007 2 MC6 049 2 SA 2012 V4 1 2 S
113. the LV Network Manager to LV Connection Managers and vice versa The communication channel will allow the LV Network Manager to issue requests for action to alleviate constraints to the LV Connection Managers and allow the LV Connection Managers to provide the LV Network Manager with measurements from within the network and report on actions taken in response to requests from the LV Network Manager SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication roject B R ISTO L Version V2 00 Solution Outline Status Released Page 19 22 Local communications I Premises domestic school office GPRS PLC or mesh radio communications Substation ADSL internet access Communication cells elements Puka Guss Figure 3 Communications Architecture Requirements The outline requirements for the solution are as follows Essential requirements e Allow an LV Network Manager to communicate with up to 32 LV Connection Managers Support event driven communications in either direction with a latency not exceeding 1 second e Support periodic communication of measurements from the LV Connection Managers to the LV Network Manager could be polled with periods of no less than 1 minute Support a total peak payload data rate total of all stations of 4 per second on the uplinks to the LV Network Manager and 0 5 kB per second on the downlinks with
114. ts However a full procurement exercise will be undertaken during the project e Inverter Outback GFX and VFX series SMA Sunny Backup Studer Xtender series e Batteries wide availability e Charge controller wide availability Testing battery technology is not considered an element of this project and the technology chosen should be considered proven low risk and low cost for the duration of the project 5 3 Smart Appliances Description An important aspect of project BRISTOL is demand response Smart appliances will provide a method of achieving additional demand response while minimising the effect on lifestyle The phrase smart appliance hides a variety of methods for delivering demand response through appliances which ranges from remotely switched plug adaptors interrupting the supply to the appliance through to full integration of an appliance with ability to receive signals through remote communication As discussed in section 4 3 different appliances will have different DR characteristics with regard to size of load availability periods utilisation lengths and effect on lifestyle and it is hoped to be able to apply a variety of appliances to explore how they can fit into network needs for DR Requirements The outline requirements for the solution are as follows Essential requirements Capable of remote initiation and or interruption of appliance operation e Ability for users to override locally Desired req
115. tuder Xtender Inverter Commercial Studer Xcom Unit Domestic Studer Temperature Sensor Domestic G59 Protection Relay MX DC Manager Smart HUB MX USB DC socket Domestic router Light Switch SPDT Light Switch Pull Cord E27 Light Pendants ECS Marine Megalux Bathroom LED Light Horizon Star Energy LED 6W 24vDC E27 fitting Horizon Star Energy LED 3W 24vDC E27 fitting T5 LED Tube LEDLightbulb net T5 slimline fluorescent fittings Plastic enclosure with metal backplate 600 600 200 Wall mount kit WDK 2 5 Double Terminals 1021500000 End Plate 1059100000 WPE 4 0 Earth Terminal 1010100000 100A DP Switch Disconnector Single Phase Connection Kit 16A Single Module RCBO 30mA Sensitivity 6A Single Module RCBO 30mA Sensitivity 16A DC Double Pole MCB 6A DC Double Pole MCB 8A DC Double Pole MCB Y bus cables RS485 Bus RS485 terminator Patch cord Cat 5e UTP PVC 0 5m Green MONITOR CABLE 316 9MM ST ST MONITOR EXTENSION DB9 F F Y Adapter Cable MDF Cover O O N 9 N 9 WPD BRISTOL Procurement Schedule Phase Ref Domestic Trial Installations Manufacturer Part Number Siemens 6MF11130GA100AA0BB Siemens Siemens 6MF12131GA050AA0 Siemens Siemens 6MF11130GG300AA0GG Siemens Siemens 7KG7755 0AA00 0AA1 Siemens LV Connection Manager e mic Flash card 2GB PS 6630 Power Supply Property Meter
116. tuder_Appendix_User_Manual Technical Specification Xtender Serial Protocol Xcom 232i Thursday 27 September 2012 Description Page LED Edison Screw light bulbs 2 of 759 LV DC CFL Edison Screw Light bulbs 3 of 759 IP66 DC Bathroom light 4 of 759 FIAMM SMG F Industrial Batteries 6 of 759 Lead Acid Battery Material Safety Data Sheet 8 of 759 MainsPro Mains Decoupling Relay 12 of 759 MainsPro Mains Decoupling Relay installation 14 of 759 and operation guide Bilion BIPAC 7800GZ modem router 56 of 759 Communication Topology Notes 59 of 759 Siemens Simatic Net Router 60 of 759 Data sheets SoLa BRISTOL Power cables 201 of 759 Data sheets SoLa BRISTOL Communication 202 of 759 cables Siemens Simeas P Power meter 203 of 759 Siemens Simeas P Power Meter manual 290 of 759 Siemens TM 1703 ACP data sheet 424 of 759 Sicam 1703 TM1703 emic system description 498 of 759 Xtender Four Quadrant Inverter 642 of 759 Studer 4Q Inverter User Manual 690 of 759 Technical Specification Xtender Serial 714 of 759 Protocol Xcom 232i user manual 740 of 759 Page 6 of 101 SIEMENS Transmission and Distribution Ltd Infrastructures amp Cities Sector STDL Smart Grid Energy Automation Client Western Power Distribution Project Name So La BRISTOL Functional Design Specification Substation Domestic and Commercial Installations Doc ref G85221 B0001 WW9 M005 Issue 4 Siemens Ref 77PO 03125 Copyright O September 12 Siemen
117. uirements e Minimal user interaction needed Technology Source To confirm the project feasibility enable budget costing and reduce technical risk the following technology has been identified that is capable of meeting the essential requirements However a full procurement exercise will be undertaken during the project e Switched plug adaptors Green Energy Options Moixa 5 4 ICT Equipment Description The DC powered ICT equipment for the project will generally be in the form of PCs fitted with DC DC con verters SIEMENS Copyright Siemens Transmission and Distribution Ltd 2011 All Rights Reserved For publication Project B RISTOL Version V2 00 Solution Outline Status Released Page 15 22 SS Requirements The outline requirements for the solution are as follows Essential requirements Anominal distribution voltage of 24 VDC with a permissible voltage range of 20 to 30 VDC Desired requirements e High efficiency gt 95 at 50 load Technology Source The technical feasibility of this aspect of the project is proven from the prototype DC distribution network installed by University of Bath which used the following technology e DC DC converters 24V DC ATX power supply 5 5 DC Lighting Description The voltage of the distributed DC power will be determined by the inverter and battery and the lighting will need to cope with a variable voltage supply The DC lighting solutio
118. urrent and power The GPRS SIM cards are a basic SIM on the Vodafone network Initially a 5Gb plan has been specified This in uncapped however to ensure that no data will be lost regardless of the end user s internet habits If applicable a more appropriate tariff could be chosen once the data rates and trends have been confirmed Further detail on the communications architecture can be found in the Communication Topology Notes and Communication Topology Overview So La Bristol Functional Design Specification 16 of 40 Document reference G85221 B0001 M005 Issue 4 Western Power Distribution Siemens STDL IC SG EA Client Project Nr 77PO 03125 5 3 4 Inverter An inverter primarily converts DC power to AC Battery inverters are available for 12 24 and 48 volts DC On this project the inverter can also be used to convert AC power to DC due to its bi directional input capabilities The inverter for the homes will be rated at 2kW Continues 2 4kW for 30 minuets connected into the 24V DC system see Figure 1 The inverters for the commercial properties will be rated at 3kW Continues 3 5kW for 30 minuets and connected into the 24v DC system while the AC inputs will be connected into the existing 3 phase AC system The functionality of the inverter allows for islanding capability on loss of grid connection and for DR for import and export of AC power from to the public distribution network Please note that the inverter
119. w 2 3 Electromagnetic effects When several circuits are run in close proximity to each other there will be an interaction between the circuits Two forms of interaction have to be considered capacitive coupling and inductive coupling Capacitive coupling is a function of the electric field produced by cables or other equipment that are energised but not necessarily carrying current Inductive coupling is a function of the magnetic field produced by cables or other equipment carrying current Capacitively coupled voltages seen on a cable due to its proximity with another circuit will be a function of the voltage of the other circuit and the distance of the victim cable from the Ref Gberalfp01 01 Projects AccessERA Western Power AC and DC Report Western Power doc 8 ERA Technology Ltd ERA Technology Report 2012 0479 E A Commercial in Confidence TECHNOLOGY line conductor and the neutral or earth conductor A typical example of such a voltage can be found with traditional twin and earth cables if the line and neutral are connected and the earth is left floating In such circumstances it has been reported that a voltage of approximately 120 V can be measured between line and cpc and between neutral and cpc This is to be expected because the cpc is physically positioned at the midpoint of the field generated by the line conductor In low voltage circuits in traditional installations capacitively coupled voltages are very low energy
120. wired in using 3 core twin and earth 4mm 6242Y4 again this cable will be installed during the initial PV installation phase to cut down works to be completed during the BRISTOL system integration rather than leave a flying lead the installation team have agreed to terminate the DC connection within a small junction box local to the DB e Along with the control units see Figure 5 item 6a 6b 7 8 amp 10 the existing lighting system will be moved onto and powered by this DC network This will be connected via MCB s prior to distribution ERA Technology have produced a report 2012 0479 detailing the Consideration of the magnitude of the induced voltages in the LVDC circuits with the findings showing that these voltages would be measured in millivolts rather than volts and hence they are not a safety issue e The existing AC light circuit connected to the existing AC consumer unit will be moved onto the new BRISTOL consumer unit and connected into the 24v DC system To do this the light switches will be replaced with rated DC switches see Figure 6 and the existing pendants will be replaced so that only E27 lamps can be fitted e 3double USB sockets each 5v 1A will be installed throughout the property one in the living room kitchen and master bedroom These charge points will loop into the existing lighting system and be mounted in a suitable place to run from the trunking These are installed for the charging of the
121. y Ltd ELECTRIUM SALES LIMITED CERTIFICATE OF COMPLIANCE Cert Number 10694 We Electrium Sales Limited of Leigh Road Hindley Green Nr Wigan Lancashire England WN2 4XY hereby declare that the following products listed on this certificate have been manufactured to the requirements and test s of BSEN60669 1 2000 including amendments 1 amp 2 corrigendum 1 Product Description 10AX 1 gang 2 way single pole plate switch 6A 2 way single pole ceiling switch Ref Number 4170 2141 BASED ON CP10679 DATED 6th September 2012 Such compliance as is detailed is based on the products named having the following prescribed rating s Rated Voltage 24V dc Rated Current Tested up to 0 8 Amps Rated Frequency 50Hz Sighed on behalf of Electrium Sales Limited POSITION Laboratory Manager Date 07 Sep 2012 ELECTRIUM SALES LIMITED LEIGH ROAD HINDLEY GREEN Nr WIGAN LANCASHIRE ENGLAND WN2 4XY AN ELECTRIUM GROUP COMPANY TLD4 012 ISSUE No 2 6 98 House 01 IEC 104 Phone 07 Telco Vodaphane APN Internet Username Password Hostname House 01 IP 10 3 1 101 22 Primary IP 192 168 1 254 24 Secondary WLAN DHCP 192 168 1 100 199 WLAN SSID House 01 AP WLAN Security WPANTPAZ PSK WLAN WPA PSK lt gt 01 VPN Type IPSec Sile40 Site VPN PSK S

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