33 11kv substation drawings

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xlpe Pendapat2: 2009 - free, high quality tnb substation drawing on clipartxtras. The following layout designs of indoor distribution substation are typical only and should not be used as construction drawings as they are presented as an example. Docket No. pdf), Text File (. SECTION VI TECHNICAL SPECIFICATIONS AND DRAWINGS FOR SUBSTATIONS . g2 lop of a1 & a2 blk. EHV 220 kV, 132 kV Substation Earthing Layout drawings. txt) or read online. 2. Home; About Us. 31 Schneider make 33 KV VCB 2 32 Schematic drawing 1 33 T clamp 1 34 T Column Str & Plan 6 35 Trans. 11 KV for loads up to 5 MVA and 33/ 66 KV for loads more than 5 MVA. 900 Mtrs 110 KV 9. Design and Planning. 100 KVA 11/0. 9 Link to download technical specifications & drawings provided in email for signing and submission. ge)Safety and Operability (SAFOP) Study Manual - Download as PDF File (. … A 11 KV substation is installed on the road at a distance of 5 ft from my residential house and 3 feet from my boundary wall. 0 MANUFACTURER/SUPPLIER Page 2 Total Number of Students: 30 Faculty Members: 1) Prof. You can ensure product safety by selecting from certified suppliers, including 34 with ISO9001, 21 with OHSAS18001, and 21 with ISO14001 certification. These bulletins are incorporated by reference in § 1728. s la iso 33/11 kv trf-2 la iso feeder-1 la feeder-2 la feeder-3 la feeder-4 incoming-2 incoming-1 WBSETCL / TECH SPEC / Rev. 33 Kv Transmission Line Layout Diagram Download and Read 33 Kv Transmission Line Layout Diagram 33 Kv Transmission Line Layout Diagram … cbip manual transmission line PDF transmission line design manual PDF Distribution Substation Manual Section 9 -33kV Substation Arrangements 9 33kV Substation Arrangements Index of Drawings DRAWING NUMBER DRAWING TITLE DSM-9-01 District Substation 33kV/315-500kVA IPS Non Fire Rated 31 Schneider make 33 KV VCB 2 32 Schematic drawing 1 33 T clamp 1 34 T Column Str & Plan 6 35 Trans. wbsedcl. EDS 01-0045b OHRAT Calculation of Distribution Ratings for Overhead Conductors. 5 MVA. 14 1 2 11 KV Single Circuit Line (Pin Type Construction) 62. Working closely with Transmission Engineer Projects in Tender Evaluation, business case approvals and preparation of contract. 8 kV or 27. ETS0025 33kV and 11kV package substation : ETS0103 33 kV, 66 kV and 132 kV transmission cable joints and 1. 1. 8. 4 KV Transformers , VCB, kiosk, CT, PT, Prior to the commencement of the supply / work all relevant drawings, designs 33/11kv substation training, tour,transformers,control panel 33/11kv substation explained 33/11kv substation single line diagram explained 33/11kv substation tour explained evertthing #33/11kv # ABSTRACT - The thesis deals with the analysis of Construction of Power Lines and Substation Switchyard of 33/11 KV. 31 1502 Generally 11 KV and sometime 33 KV substation are of this type. Substation owned electrical equipment connected to Toronto Hydro 13. For a substation drawing, the reference number is a unique number allocated to an individual substation. Foundation 1 Total Nos. com, find free Technical specification construction of 33/11 kv primary , a) substation site selection b) More references related to 33kv substation layout drawingsHT SUBSTATION EQUIPMENT SUPPLY, ERECTION AND COMMISSIONING 33/11KV 5 MVA Power transformer as per the 11KV/415 Volts, Compact SubstationCompact substations are used for energy transformation in secondary distribution network from MV to LV or LV to MV. 11 KV Bus at 33 /11 KV Jampaijala S/S 11 KV Out Going Feeder 2x3. 200-100/1-1-1A. NAME OF PROJECT NAME OF CLIENT NAME OF END CLIENT P. Installation of 11kV/440V Distribution Substation substation and a methodology to design the various elements 11kV/440V substation. txt) or read book online. Mobile Substation is a better solution over conventional permanent substation as it can restore power quickly after a natural outagea) Substation site selection b) Land acquisition Limit of contract The scope of work shall also include all work incidentals for successful operation andAddendum to ESAH Version 3 “Connection Guideline” Appendix Item Addendum 1 Table 3-3 ESAH: Land Size & Building Size For Substation 11kV and belowToggle navigation Menu. 1 A) (ii) Single Line Diagram of 11kV Substation Substation provides the energy supply for the local area in which the line is located. 6. supply and delivery of 11 KV and 33 KV Porcelain Pin Insulators for use on 11 KV and 33 KV overhead Power Lines. Substation Automation Took part in Factory Inspection Tests for 11KV GIS Switchgear at Siemens There are no documents or drawings available. 33kV Jul 20, 2017 33/11kv substation training, tour,transformers,control panel 33/11kv substation explained 33/11kv substation single line diagram explained  standard bidding document - WBSEDCL www. com – Download free xls files,ebooks and documents – www. 24 • Impact of new grid developments on substation Supply, Installation & Commissioning of 33/11 kV Sub-Station at Jagruti Vihar, Burla & drawing of 33 kV dedicated O/H line from Kantapali 220/132/33 kV Substation through M/s WESCO amounting to ₹ conceptual primary design drawings of 155/33kV offshore windfarm substation; various hazard and access plan drawings. com/cad-design-software/Single Line Diagram of Substations. g. ) used for this purpose in thesubstation. (1) Bulletin 50-4 (D-801), Specification and Drawings for 34. Lime Tree Place 33/11kV Substation - 33/11kV Transformer Replacement. Description Customer LOA Ref. S. Clarification to the Bidders queries received for the Tender Package of Construction of 2X50 MVA, 220/33 kV Nagrota (New) substation including LILO of 220kV Kishenpur-Barn S/C line on D/C Tower at Nagrota General arrangement of a LV metering substation . Project: 132/33 kV Afam Location: Nigeria Client: Taleveras Group, Nigeria Complete design and engineering of the primary and secondary equipment Electrical Technician Substation Dec 2010 - Date Labasa 11kV Switchgear Upgrade (Currently ongoing): Replacement of an aged 11kV switchboard with a new 22 panel 11kV switchboard. Hills to KPTCL Tangli Substation. optcl. transformer etc. A-20 A-21 A-22 A-23 A-24 A-25 A-26 A-27 A-28 A-29 A-30 A-31 A-32 A-33 A-34 A-35 A-36 Description 11 KV Lines – Single Phase Tapping from 33/11 kV Substations. voltages 1. 5MVA, 33/11KV Injection Substation, Calabar The Bill of Quantities and drawings can be obtained between the hours of 8am-5pm 33/11KV Power Transformer Basic Configuration Requirements 1500V DCCB & ASSOCIATED DRAWINGS 1500V REACTOR SUBSTATION FENCING RAIL EARTH CONTACTOR (REC) ElectroNet undertook the construction project management and was ultimately responsible for the build of the TPMS which is currently the highest voltage, 110 kV/33-22-11 kV mobile substation in New Zealand. Remark: The cast-resin dry-type transformer does not need a fire protection oil sump. 5cx300mm2 1. 500 Mtrs 66 KV 7. Of Sheet 60 List of Drawing. 15 to 7-4-2015 Reconstruction of Ramadi east substation 132/33/11KV The scope of work for this tender include the following Item Description Price 2014/04 - Houston - CED – GIS - 3 GIS introduction 1/7 SF6 properties 1/3 zA GIS is the implementation, within a complete HV substation, of the remarkable sulphur hexafluoride (SF6) properties in terms of substation (main intake or PMU) that consist of (33/11 kV) separates the Transmission network and Distribution network where the Transmission Urban Electrification Division (UED), Distribution & Customer Services Department (DCSD), Bhutan Power Corporation Limited (BPC), Thimphu invites sealed bids from registered eligible large Bhutanese & International firms and joint ventures from these firms for the “Supply and Construction of 2 x 2. Find PowerPoint Presentations and Slides using the power of XPowerPoint. at Aurangabad CAD/BIM Library of blocks "Substation desig" Free CAD+BIM Blocks, Models, Symbols and Details Free CAD and BIM blocks library - content for AutoCAD, AutoCAD LT, Revit, Inventor, Fusion 360 and other 2D and 3D CAD applications by Autodesk. 1 CONSTRUCTION OF THE SUBSTATION. com, find free presentations research about 33 Kv Substation PPT Is the 132/33 kV Substation of Qatar General Electricity & Water Company (KAHRAMAA) located identified in the drawings and Tender Document as minimum requirements. STANDAND:Except where they conflict with specific requirement in the specification. About Us; Our Facilities; Our Methodologies; Our Trainer SpecialityThe Project Management Unit (PMU) was constituted in year 2001 with staff initially drawn from the Transmission Sub-Sector of PHCN from the first credit facility Single-line diagram of the A. Survey an d Design Engineering for 35 km of Double Circuit Transmission Line from B. DRAWINGS FOR 11kV NETWORK WORKS . but also helps in reducing the cost of electrification by increasing the length of 11 KV lines fed from a single 33/11 KV substation and 33/11kV or 66/11kV substation, Distribution transformer Substation etc. 33kv substation single line diagram PDF compact substation one line diagram symbols PDF asce substation structure design guide PDF ieee standards style Pendapat2: 2009 - free, high quality tnb substation drawing on clipartxtras. It provides capacity injection into 11 kV network through a standardized transformation of 33/11 kV. . 2017 Hot New Products Galvanized Steel 11KV 33Kv Transformer Substation 2017 Hot New Products Galvanized Steel 11KV 33Kv Transformer Substation applies to the network of AC 50Hz and rated voltage 6/10KV, and the independent complete transformation and distribution device of capacitance 1600kva or less. The 33/11kV Naraina grid substation is an unmanned grid and will be remote operated from Tata Power Delhi Distribution’s state-of- the- art Supervisory Controlled and Data Acquisition Center. 132-33 kV substation single line diagram Starting from the generating stations to the end users, voltage is needed to be stepped up and down several times in various substations. DESIGN CONCEPTS OF 33/11kV NEW SUBSTATION. Category: DTR SS Drawings Category: 33/11KV PSS Layout 33/11 KV Substation Single line diagram-SLD Layout of Earthing in New 33/11kV S/s for Murram Soil Because of this advantage, the scheme is very popular for 33 KV and 13 KV system. co. 25MVA Transformer Deuba Substation Bidding Document: Revision 1 Section 2 – General Conditions of Contract 7 The Substation Automation System (SAS) of Distributed type (Kiosks consisting bay/bays in Switchyard) shall be installed to control and monitor all the sub-station equipment from remote control centre (RCC) as well as from local control centre. 6 kV or 11 kV 12 Have you check the Reticulation Drawing for this Substation? A switching substation is a substation which does not contain transformers and operates only at a single voltage level. e. 330 kV double-circuit transmission line from Okija power plant to Nnewi substation 330/132/33kV 330 kV double-circuit transmission line from Okija power plant to Onitsha substation 330/132/33kV Extension 330/132/33 kV S/S Nnewi, 2x330/132 kV transformer 150 MVA, 2x 132/33 kV transformer 60 MVA 33kv 11kv substation to sell - 137 33kv 11kv substation online Wholesalers provide popular 33kv 11kv substation from China. 6 KV New Substation i Specifications and Drawings Assam Power Distribution Company Limited BIDDING DOCUMENT The work relating to protection, control and panels for 33/11KV Sub-stations shall comprise of development of elementary diagram, design, manufacture, test and supply of pre-wired control panels to be installed in the sub-station control room. Group Description Of Drawing Drawing No Section No. of 33/11KV Substation aggregating 80MVA, Addition of new 110 Nos. About 30,000 consumers of the Kerala State Electricity Board (KSEB) in densely populated parts of the capital city stand to enjoy high quality power supply when Kerala's first 33-kV indoor substation Detailed Design of 66/11kV Thabaung Substation for MEPE Detailed Design of 230/33/11kV Shwe Myo Substation for MEPE Detailed Design of 230kV Switchyard for Bangpakong Combined Cycle Power Plant Block 5 for EGAT Substation Management Solutions shall be responsible for the following health, safety and environmental matters on site:- • Maintain, monitor and implement the Construction Phase Health and Environmental Plan, including its development to include emerging issues, in liaison with the Client Project Manager and Client QHS&E Practitioner. 33kV Drawings. NORTH Structural Lay Out drawing/Land Plan of New 33/11KV Power Sub Station. 3. NSP/007/019 - Guidance on Substation For a substation drawing, Queens Road 33/11kV S/S 302,304,314 11kV feedersExporter of HT VCB Control Panels - 11KV VCB Panel, Distribution Panels, 33 KV Indoor VCB Panel and 33KV, Indoor SF6 Switchgear Panel offered by BVM Technologies Technical Specifications 11kv 33. Procedure for the establishment of a new substation Protection against electrical hazards, faults and mis-operations in electrical installations General principle of protection against electrical shocks in electrical installations Substation Design Power System Engineering, Inc. Supply and Installation of 33/11kV 5/6. SUB 33/11 KV Substation (Regular) - Plan 1a training report onuttar pradesh power corporation limited33/11 kv substation indiranagar sector-25, lucknow(uttar…Substation Design Manual 33 11. CAPACITOR VOLTAGE TRANSFORMER. It provides Installation of at least one distribution transformer in each village / habitation. The stepped down 33KV is further stepped down to 11KV and then g2 lop for kirti ngr. 4 KV Transformers , VCB, kiosk, CT, PT, Prior to the commencement of the supply / work all relevant drawings, Detailed investigation of substation and preparation of BOQ to be done by the Volume II Technical Specification for 132/33/11 kV Syaule Substation. 2 Survey 34 ANNEX J – SUBSTATION DRAWING LIST 1,Sudipta Sen , 2,Arindam Chatterjee , substation including the civil or maintenance reason. Request you to mention the minimum distance that is to be maintained during HV substation installations It is the cheapest form of sub- station for voltages not exceeding 11KV (or 33 KV in some cases). 26-9-2016 · The following layout designs of indoor distribution substation are typical only and should not be used as construction drawings as they are presented as anExisting drawings updated in line with current NG policies for the change of feeder protection and replacement of Horbury and Mount Road 33/11kV Substations SL No. Substation Design However. Lot 3-132/33 kV Substations and Switching StationsIf the elevation drawing is also given then it will be more helpful. Ajit Pujara 2) Prof. substation it will Primary reticulation; typically 22 kV or 33 kV Secondary reticulation; typically 6. ELSTREE 400/275/132 kV SUBSTATION conceptual primary design drawings of 400kV GIS and AIS equipment, 132kV demolition drawings in stages. NO. electrical system (on photo 110kV substation; credit: energo-pro. Substation Construction Manual Ver 2 (PDF File, 1. engineering-bachelors-degree. DESCRIPTION UNIT QTY AMOUNT 2 SWITCH YARD PLINTHES Switchgear Foundation plinthes for the conversion of wooden structures steel, as per the General arrangement drawing( GA) Important Note: Wherever the source is from an existing 33 KV or Grid sub- station to the proposed 33/11 KV s/s, care is to be taken for construction of bays at the existing s/s end for matching with the existing system. 1kv ar. 11kV BUS. These numbers are allocated by the Substation Design Engineer within Primary Engineering Projects at Subestación Electrica a 115 kV de este post, HV POWER SUBSTATION COMPONENTS - AIR SUBSTATION OUTDOOR - BIM pueden bajar todos los elementos 3D para diseño de Subestaciones de alta tensión. Example network above consists of MV consumer substation, two MV ratings: 20 kV and 6 kV, main MV switchboard fed at 20 kV can be backed up by a set A fault analysis of 11kv distribution system (a case study of ado Ekiti electrical power distribution district) 33/11KV injection substation and its feeders 1 Design, Supply , Erection Testing and Commissioning of 33/6. The project includes the supply of 33kV busbar to accommodate a new bus section bay and bar connectors, and Voltage Transformer (i) The 3-phase, 3-wire 11 kV line is tapped and brought to the gang operating switch installed near the sub-station. 33 Feasability of a common dry type interface for GIS and Power cables of 52 kV and above WG B3. APPENDIX C SUBSTATION DRAWINGS . i. com/current-openings. Layout of Earthing in ADD. pdf 20. Established in 2012, the agency comes under the authority of the Department of Power. The G. KV disc insulators, support insulators , 33 KV lightning arrestors, mechanical interlocks for OPEN/CLOSE of main poles (R Y B) and earthing , jumpering, angle PSC Double pole structure with AB switch 1 33KV, 3Ph PSC (9/300) AAAC 55 Crossings the roads / canals or any other lines shall be as per the enclosed drawing He has been a project manager of major 33/11 kV substation upgrade projects, new 33 kV and 11 kV overhead line projects, 33 kV underground cable installation projects, and 33 kV overhead line condition assessment projects. Theory will be covered on the first day. ElectroNet undertook the construction project management and was ultimately responsible for the build of the TPMS which is currently the highest voltage, 110 kV/33-22-11 kV mobile substation in New Zealand. (a) To comply with this part, you must follow the requirements contained in the following REA/RUS bulletins. Step3 Substation Layout - free, high quality 132 kv substation drawing on clipartxtras. 15 MVA). 31 1502 A – Substation Standards Switch Operating Platforms Steel Design and Details 49. 15 MVA 33/11 KV Power Transformer CTR 200/1-1 A CTR 300 /1-1-0. 33 kV busbar is Aung Chan Thar 132/33/11 kV substation in Myanmar. 0: Metering & Protection SLD for 33/11KV substation. tatasteelindia. Tavua 33 kV Substation Project in Tavua. 272 The United Illuminating Company and the Connecticut Light & Power Company application for a Certificate of For example; generation voltage (11 KV or33 KV) at the power station is set up to high voltage (say 220 KV or 132 KV) for transmission ofelectric power. If this is the case, the opportunity should be taken to ensure the correct handing of the switchboard as described in 3. 132/33 kv 28/40 … 33KV &132 KV line and … APPENDIX C SUBSTATION DRAWINGS – Connecticut APPENDIX C SUBSTATION DRAWINGS . A-20 A-21 A-22 A-23 A-24 A-25 A-26 A-27 A-28 A-29 A-30 A-31 A-32 A-33 A-34 A-35 A-36 Description 11 KV Lines – Single Phase Tapping from 11 KV V-Cross Arm For PSC Joist. , in AutoCAD format and manuals in PDF format, for offered item shall be submitted. 6 KV switchyard equipments along with 2 MVA Transformer of Lalnala LIS Taluka- Samudrapur (i) The 3-phase, 3-wire 11 kV line is tapped and brought to the gang operating switch installed near the sub-station. No: Tender No: Tender Ref. Substation 33/11kv products are most popular in Africa, Domestic Market, and South Asia. REC is a nodal agency for this scheme. 11 KV SI STR. bid”, “Price bid”, as the case may be, for “CONSTRUCTION OF 132/33KV SUBSTATION ON TURNKEY BASIS FOR SUPPLY, TRANSPORTATION, ERECTION, COMMISSIONING AND CIVIL WORK” . 33 11kv substation layout drawing PDF electrical schematic drawing of 11kv indoor substation PDF layout diagram 132 kv substation 11kv substation PDF Layout Design Of 33 11 Kv Substation XLS -… Layout Design Of 33 11 Kv Substation downloads at Ebookinga. 5k Views Sakina Mohammed Mota , works at Indian Institute of Technology, Madras Main Distribution Sub-station is normally applicable to 33kV for interconnecting 33kV networks with 11 kV networks. 2 kv & 33 kv metal-enclosed service entrance switchgear guide specification csr-1 revision KV Substation ex- tension • 132/33/11 & 33/11 KV S/Ss Construction drawings and supervi-sion of 11 KV switchgear. 4MW of load. but also helps in reducing the cost of electrification by increasing the length of 11 KV lines fed from a single 33/11 KV substation and • Led the Constructions of 33 nos 33/11KV substation of Bangladesh rural electrification Board. Example of standard MV/LV network structure Find this Pin and more on Energy and Power by Edvard Csanyi. Section - 1 Sectional Drawings of Retaining Wall/Slope Protection and. Also contract has been signed for civil construction work including staff quarter, boundary wall, and guard house. 1 A) (ii) packing, forwarding, transportation, insurance during transit, delivery to site/ stores of 33KV Outdoor Vacuum Circuit Breakers for use the 33/11KV primary substations under the distribution networks of NESCO. Single busbar with ring shaped bus can be cso/49/ installation of 33/11 kv substation & lines shall be evidenced by submitting by a Power of Attorney signed by legally authorized signatories of all the partners as per Annexure – V (Vol. 31 0001-1 Rev. View and Download PowerPoint Presentations on 33 Kv Substation PPT. A- Decision of location a-The location should be best suited at the load centre of the 11kV net-work b-Load density and voltage-regulation. 577 Amp. 33kV CT. 220/132kV Grid station & OHL Project Details HAIL-03 33/11 KV PRIMARY SUBSTATIONS . A fault analysis of 11kv distribution system (a case study of ado Ekiti electrical power distribution district) 33/11KV injection substation and its feeders Example of standard MV/LV network structure Find this Pin and more on Energy and Power by Edvard Csanyi. As of Asadh 2073, Contract has been signed for construction of Syaule 132/33/11 kV substation project, equipment design and drawings approval is in progress, approach road construction to the substation is in progress. In Figure 1 C. 15 to PSC Double pole structure with AB switch 1 33KV, 3Ph PSC (9/300) AAAC 55 Crossings the roads / canals or any other lines shall be as per the enclosed drawing 7-4-2015 Reconstruction of Ramadi east substation 132/33/11KV The scope of work for this tender include the following Item Description Price Electrical and Civil Work Engineering for AIS and GIS Substations Complete design and engineering of the primary and secondary equipment for the substation. No. Electrical Engineer at Worley …500+ contactenWerkzaam in: DesignLocatie: Muscat Governorate, OmanSingle Line Diagram of Substations | cad design …Deze pagina vertalenwww. SOR-16-17 (i) 33KV lines and associated works Schedule A (ii) 33/11KV Sub-station and associated works Schedule B (iii) 11KV lines and associated works Schedule C Design and Planning EDS 01-0045b OHRAT Calculation of Distribution Ratings for Overhead Conductorstechnical specification content item no sub description page no e1 scope of work 1-4 e2 general technical clauses & design 1-42TNB Guidelines - Download as PDF File (. Underground Substation The substation are situated at underground is called underground substation. united arab emirates federal electricity and water authority detailed technical specification for 33/11kv 20/28mva power transformer, ner & rtcc panels All the drawings, i. The MV compartment of the package substation houses MV switchgear with various functions from single breaker to 3 or 4 function RMU. The assembly of apparatus (e. the works include:-supply and installation battery charger 48vdc. Design and Planning EDS 01-0045b OHRAT Calculation of Distribution Ratings for Overhead Conductorstechnical specification content item no sub description page no e1 scope of work 1-4 e2 general technical clauses & design 1-42TNB Guidelines - Download as PDF File (. CONSTRUCTION STANDARDS . O. 5 MVA 33 Layout Diagram 132 Kv Substation 11kv Substation. AND PLC COUPLING EQUIPMENT- EXISTING AND PROPOSED SINGLE LINE DIAGRAM FOR 33/11 kV. Successful operation of entire power system depends to a considerable extent on efficient and satisfactory 33kv 11kv substation to sell - 137 33kv 11kv substation online Wholesalers provide popular 33kv 11kv substation from China. 1 Geotechnical Report 34 11. hv substation project testing & commissioning For Every Substation, a Testing Engineer from Matelec is Dedicated to Manage the Testing & Commissioning Activities of Schematic Diagram 11kv Substation also other about 33 11kv substation drawing, layout diagram 33 kv substation, electrical schematic drawing of 11kv indoor substation, lifelike drawing with lee. • Completed Construction of 06 nos of new 33/11KV Substation & Renovation of 14 nos of 33/11 KV Substation under Zone Power Distribution project on Turnkey basis. O DATE 33/11kV Power Substation of South Bihar Power Distribution Co. 5MVA transformer and the power supply being evacuated by two 11kv feeders namely Lessos town/Sochoi and the Keben feeder totaling to approximately 1. kVA in 11 kV package substations. -1 Page 2 of 8 33KV Indoor Switchgear GENERAL TECHNICAL SPECIFICATION 33 KV INDOOR SWITCHGEAR 1 GENERAL The specification covers, the design manufacture, testing and supply of 36KV, 3 phase, 50 A 11 KV substation is installed on the road at a distance of 5 ft from my residential house and 3 feet from my boundary wall. Overview: 132kV power system protection & control practical training module 1 (exec) course is for protection engineers background. This new grid substation will further improve the reliability of power supply and facilitate the load growth in the above-mentioned areas. 33/11 KV Power Transformers, Station 33/0. as well as infrastructure created during electrification of villages/habitations. 20 juli 201733/11 KV Power Transformers, Station 33/0. 97 of this part. . 33kv panel 11kv panel road control room cum switchgear building a. bge strategic customer engineering primary customer substation requirements 13. Different types of electric panels can be installed by us at more. 3 Tests for the purpose of this standard shall voltages 1. installation of the new switchgear may dictate the substation design. Pranav Jani 66 KV SUBSTATION RANASAN Above diagram is a single line diagram of 66KV Substation. 000 Mtrs 33 KV 4. united arab emirates federal electricity and water authority detailed technical specification for 33/11kv 20/28mva power transformer, ner & rtcc panels Bidding Document for Construction of Unmanned 33/6. Project: 132/33 kV Afam Location: Nigeria Client: Taleveras Group, Nigeria Complete design and engineering of the primary and secondary equipment Special foundations for sub stations. 1: Single line diagram of 415V ACDB: 1. Testing & commissioning of 33/11Kv&11/0. WITH DUAL SECONDARY WINDING. 5 MVA, 33/11 kV AIS substation at Denchi, Pemagatshel”. 11 KV CT STR. Please send me the cable schedule for 33/11kv SS at Substation 33KV/11KV Cable View and Download PowerPoint Presentations on 33 Kv Substation PPT. 4. 6 kV system. c. Drawing Title 25251-400 Singer Substation Arrangement PlanTECHNICAL SPECIFICATION CONTENT ITEM SCHEMATIC LAYOUT OF SUBSTATION AND OTHER DRAWINGS station to the proposed 33/11 KV s/s, The tender for a particular substation clearly indicate these specifications. 10 The number and type of protective relays to be provided on various breaker panels installed in a 33/11kV substation Operation & Maintenance of 33,11 Kv Substation 132 33kv substation single line diagram PDF substation single line APPENDIX C SUBSTATION DRAWINGS . 1k Views · View 1 Upvoter. 5 kV SUBSTATION SERVICE TRANSFORMER 400/132/11kV AUTO TRANSFORMER 33/11 kV Substations 2*31. Underground trench excavation, Cable laying, Megger testing, and installation of red tiles and warning tapes. 800 Mtrs 11 KV 3. F-3 11 KV / 433 DTR for on Line Locations along the line 4. Kenya Power Transmission System Improvement Project Lot 3-132/33 kV Substations and Switching Stations Volume 2 Section– VI Employer’s Requirements Installing 4kW/Hr battery bank with 800W 120V Inverter and Trickle Charger from Tactical Woodgas - Duration: 10:03. 33 KV VCB(3-pole, 1250 A, 50Hz, 25 KA , CT, CRP & Power Pack) No 2 3 11 KV VCB with CT & CRPs with Power Pack No 2 4 33KV Post type insulator No 9 The Tenderer is allowed to visit and examine the existing 33/11kV substations and the new designated place, obtain for himself on his own responsibility all information that may be necessary for preparing the Offer and detailed design. -II). Installation of 132 KV, 33 KV & 11 KV Bus Bar (Recham). AND PLC COUPLING EQUIPMENT- 33kV & 11kV Distribution Drawings - Ebook download as PDF File (. in Mn) 9 Supply & Erection for The Tenderer is allowed to visit and examine the existing 33/11kV substations and the new designated place, obtain for himself on his own responsibility all information that may be necessary for preparing the Offer and detailed design. C. Exit A path of travel, which leads from a floor area to a separate Manual for Transmission Lines and Substation Construction and Maintenance Activities Volume I – Best Management Practices Volume II –Permits A capacitor voltage transformer (CVT) is a transformer used in power systems to step-down extra high voltage signals and provide low voltage signals either for measurement or to operate a protective relay. Engineering, design and supervision, There are no documents or drawings available. pdf), Text File (. e. 2: Single line diagram of 400 / 275 / 132 / 33 / 11kV Substations Substation Management Solutions • Provide information to the Engineering Department to enable the project drawings 11kV Drawings. Products. Reference for Template drawing package for 33/11kV 32MVA Substation single line diagram. Preparing of specification for Substation equipment & construction thereof. 33 Kv Transmission Line Layout Diagram Download and Read 33 Kv Transmission Line Layout Diagram 33 Kv Transmission Line Layout Diagram … cbip manual transmission line PDF transmission line design manual PDF Technical Specification for 33/11kV Power Transformers ( APDRP Scheme ) PAGE 4 OF 72 6. As-Built Drawings for Chitradurga 66 kV Substation Project. powerlines and high voltage equipment installations in the frequency range 0. 16 kV to 161 kV. This ensures efficient transmission of power , minimizing the power losses. Double Bus System with Bypass Isolators This is a combination of the double bus system and main bus and transfer bus system. BHANJANAGAR S/S(2X5 MVA+1X3. F-16 3 Phase Distribution Using Two 6. 11kv substation layout drawing PDF 33 11kv substation single line diagram PDF 11kv h pole transformer drawing PDF 11kv 4 pole structure drawing PDF . 2kV or even 32 kV. as stipulated in the above REC Specification shall be 8kA or 12. Alternative ROW Design 3 4 1. 4305: Tender Ref. EDS 07-0105-2014 33-11kV Substation Separate Tank and Radiators Double Transformer Bund Concrete GA and 33/11kV – 25MVA procurement, assembly and supply of thirteen mobile substations 6x33/11kV, 6x132/11kV and 25MVA for Kurdistan - Iraq. 1 PRELIMINARIES AND ENABLING WORKS A Allow for all necessary statutory approvals for the works by 33 11kv substation layout drawing PDF electrical schematic drawing of 11kv indoor substation PDF layout diagram 132 kv substation 11kv substation PDF Layout Design Of 33 11 Kv Substation XLS -… Layout Design Of 33 11 Kv Substation downloads at Ebookinga. For example; generation voltage (11 KV or33 KV) at the power station is set up to high voltage (say 220 KV or 132 KV) for transmission ofelectric power. 33/11 KV Substation Single line diagram-SLD. Company Name : Tata Steel Limited Location : Mumbai, Kolkata, Jamshedpur Current Openings Page : http://careers. Technical Specifications 4. industrial area. substation layouts 1. Request you to mention the minimum distance that is to be maintained during HV substation installations High Voltage (Subtransmission if 33-115kV and transmission if 115kV+) – between 33 kV and about 230 kV, used for sub-transmission and transmission of bulk quantities of electric power and connection to very large consumers. 3 Sub-station Single Line Diagram. Engineering, EHV and HV Substations substation. Electric power is almost distributed in localities through such sub-station. xls Conceptual primary design drawings of 155/33kV offshore wind-farm substation; various hazard and access plan drawings. 6kV or 11kV or 13. 0 MB). electricals, 11kv, salary, electrical drawing, Supervision, Monitoring of installation, testing and Commissioning of New of 33/11KV power Substation 11kv Switchgear Commissioning - Free PDF Search Renovation of Azadi Substation (132/33/11 kV, 3x63 To 11kv Switchgear Commissioning - Free PDF Search Engine - Details Engineering for Substation for voltage level of 33/11 KV. drawings for the solar array and substation will be required. 14-11-2011 · 4 thoughts on “ KEY DIAGRAM 11KV/400V INDOOR SUBSTATION ” bouncy castle barnet says: December 27, 2011 at 8:57 amAll the drawings, i. CONSTRUCTION STANDARDS . 1 11 KV Single Circuit Line (Pin Type Construction) 62. switch consists of isolators connected in each phase of the 3- phase line. 2. Supply, Installation & Commissioning of 33/11 kV Sub-Station at Jagruti Vihar, Burla & drawing of 33 kV dedicated O/H line from Kantapali 220/132/33 kV Substation through M/s WESCO amounting to ₹ Sub Station Erection Service (33/11KV) We are a renowned and authorized Electrical Contractor for substation and transmission line. A pressure of 1013 millibars is equivalent to a pressure of 750 mm of Mercury at 0 degree centigrade. 1 A) (i) above and satisfactory operation of 132 KV or above class substation meeting the criteria as mentioned in 6. Requirements for the Design & Construction of Customer-Owned High-Voltage Substations Conditions of Service, Section 6 – Reference #4 Page 2 of 76 Preparation of Shop Drawings for Riyadh Metro Line 4, 5 & 6 Fire Fighting & HVAC Design in New MA'AN 400/132 kV Substation & extension of 400/132kV Qatranah and Index for REC Drawings. Construction supervision for sub stations. 414 For the purpose of standardization in India transmission lines may be classified for operating at 66 kV and above. 33kV NEW 33KV LINES FOR EXISTING 33/11 KV SUBSTATIONS IN. 33/11 KV Power Transformers, Station 33/0. Layout of Earthing in New 33/11kV S/s for Murram Soil. 600 Mtrs 22 KV 3. F-6 11 KV H. Contactor: MATELEC SAL Design and Planning EDS 01-0045b OHRAT Calculation of Distribution Ratings for Overhead Conductorstechnical specification content item no sub description page no e1 scope of work 1-4 e2 general technical clauses & design 1-42TNB Guidelines - Download as PDF File (. Vendor development (in respect of Electrical Power). Drawing No. Lessos 33/11kv substation Located right across the public road after the Lessos 132/33kv substation on a 2 acre piece of land with a 1X2. By incorporating 11kV Switchgear, Cast Resin Transformers, Low Voltage Switchgear and Automatic Power Factor Correction Equipment into a compact unit, It can be called 33KV/11KV Substation layout drawing. Schematic Diagram 11kv Substation 66kv pdf sample single line diagram of a substation 33 11kv substation single line diagram automation products 11kv substation schematic 220 kv substation. 10 The number and type of protective relays to be provided on various breaker panels installed in a 33/11kV substation shall be as shown in REC Construction Standard L-6. EDS 04-8000 Generic 1 Drawings. of outdoor substations. Contract Value (Rs. EDS 5-0001-0102A 33kV Overhead Line Transformer Feeder Rough Balance Bus Zone Protection Scheme for 3 Bus Zone Substation. s . PORTABLE SUBSTATION 5 MVA 24,900-4160/2400 volt with 25 KV Primary Fused Load Interrupter Switch, neutral grounding resistor, and 4 each 15 KV 600 amp Visi-Break Vacuum Circuit breakers with GE Multilin Relays. CTR 200 /1-1 A KISIAN 33/11KV SUBSTATION ITEM NO. pdfNEW 33KV LINES FOR EXISTING 33/11 KV SUBSTATIONS IN. F-11 Installation of Automatic Transformer Disconnection Switches with D. The largest voltage drops About 30,000 consumers of the Kerala State Electricity Board (KSEB) in densely populated parts of the capital city stand to enjoy high quality power supply when Kerala's first 33-kV indoor substation 33kV substation, Perunad is a transmission part of Kerala State Electricity Board, a public sector agency of under the Government of Kerala, India, that transmits the electricity supply in the state. The tender specification also has the reference drawings, which indicate the schematic Electrical Power Substation Engineering and Layout Electrical Power Substation Engineering and Generally 11 KV and sometime 33 KV substation are of this type. EDS 02-0027 11kV Triplex Cable Ratings Electricity Supply Application Handbook Vision To be among the leading corporations in energy and related businesses globally Mission We are committed to excellence Mobile Substation is a better solution over conventional permanent substation as it can restore power quickly after a natural outage technical specification content item no sub description page no e1 scope of work 1-4 e2 general technical clauses & design 1-42 a) Substation site selection b) Land acquisition Limit of contract The scope of work shall also include all work incidentals for successful operation and Figure 1 – Single-line diagram of transmission and distribution network. Typical and proposed Drawings For Construction of 33/11. 11kV Drawings EDS 5-0001-0001A 11kV Block Diagram of Protection (Description) Auto Reclose Feeder EDS 5-0001-0002A 11kV Block Diagram of Protection (Description) Non Auto Reclose Feeder In 2002, tenders were advertised for a 132/11kV substation consisting of two 132kV bays, two 132/11kV 30MVA transformers and an eighteen panel indoor 11kV switchboard. 9 Transmission Line and Substation Components Appendix B November 2011 7 1 2 Figure 1-6. 11kv Substation for mm MS Channel fixed approximately 1500mm below the 11KV tapping point. The largest voltage drops 1. elevation, side view, plan, cross sectional view etc. 2*31. 433Kv Substation, Control & Protection scheme checking, testing of protective relays, cable schedule preparation Testing and commissioning of induction motor up to 7x6 MW of Tacho motor. PDF is worth reading. Electrical and Civil Work Engineering for AIS and GIS Substations Complete design and engineering of the primary and secondary equipment for the substation. Drains. 132kv main bus 132kv reserve bus 20/40 mva, 132/33kv About 30,000 consumers of the Kerala State Electricity Board (KSEB) in densely populated parts of the capital city stand to enjoy high quality power supply when Kerala's first 33-kV indoor substation Special foundations for sub stations. 14 2 supply, installation, and testing and commissioning for amodification of 33/11 kv substation. the substation grounding grid and voltage drop in account for grid conductors the through which current is flowing, in order to correctly calculate touch and step voltages. Single Busbar System Single busbar with a sectionalizing arrangement can be erected to give more flexibility for operation and maintenance. I do not have cable schedule. § 1728. Double break type isolators are used at 33 kV substation. Itshall be Tavua 33 kV Substation Project in Tavua. Main Distribution Sub-station is normally applicable to 33kV for interconnecting 33kV networks with 11 kV networks. elevation, side view, capacitor bank intended for installation at 11 KV feeders of 33/ 11 KV power transformers 4. Foundation Design for 33/69 kV; 45 MVA Power Transformers. ELSTREE 400/275/132 kV SUBSTATION Conceptual primary design drawings of 400kV GIS and AIS equipment, 132kV demolition drawings in stages. EDS 5-0001-0001A 11kV Block EDS 5-0001-0012B Schematic Diagram of Busbar Protection & Circuit Breaker Fail for a Three Transformer Substation 132/33/11 & 33/11 KV S/Ss Construction drawings and supervi-sion of 11 KV switchgear. … View and Download PowerPoint Presentations on 33 Kv Substation PPT. 1-267. 9. Example network above consists of MV consumer substation, two MV ratings: 20 kV and 6 kV, main MV switchboard fed at 20 kV can be backed up by a set 4 CIVIL WORKS 220 kV Substation Mehna Khera The work shall be included but not limited to the following: - a) Foundation for S/Stn main gantry/steel structures and equipments as per drawings attached. New 33/11KV Substations & Augmentation/ Renovations of 11 Nos. 7. The standard instruction for construction of 33/11 kV substation is given in REC standards which specifies the layout along with the switchgear. in International HV Electrical Design Consultants and Engineers. Index for REC Drawings. ETS0025 33kV and 11kV package substation : ETS0103 33 kV, 66 kV and 132 kV transmission cable joints and General arrangement of a LV metering substation . 11kV Ltd is a company specialising in high voltage electrical distribution and generation systems and can provide the complete lifecycle of HV networks: design, procurement, build, commission, maintenance and decommission. I am currently working in the construction of a 33KV/11KV substation. 33 kV transmission line design drawings – Ebook download as PDF File (. substation, the earthing bars which are provided and installed by the building owner for the distribution substation shall be extended to the location(s) where CLP supply cables enter the site owned by the building owner. Manuals, specifications, test reports, design modules, standards and drawings for zone substation design and construction service providers. For th The Project Management Unit (PMU) was constituted in year 2001 with staff initially drawn from the Transmission Sub-Sector of PHCN from the first credit facility; namely Nigeria Transmission Development Project (NTDP) about USD100m to address only transmission deficiencies. represents the central station where power is generated by 3-phase alternators at 6. 0 11KV CAPACITOR BANK8-6-2011 · 153 Responses to 11KV/415V Overhead Line Specification(REC A 11 KV substation is Can You tell me whether we use GI wire for 33/11 kv feeder united arab emirates federal electricity and water authority detailed technical specification for 33/11kv 20/28mva power transformer, ner & rtcc panelsREC Drawings. 11kV Indoor distribution substation. 500 Mtrs 9. Sr. Keywords: Power Factor Improvement, Reduce Electricity Cost, Reactive Power Stability, Shunt Capacitor Bank, Voltage Control. International HV Electrical Design Consultants and Engineers. Except where modified below, it is to be assumed that the amount of generation simultaneously connected is such that normal voltage will be maintained on one side of any transformer when there is a short circuit between phases or to earth on the other side. Layout Diagram 132 Kv Substation 11kv Substation. 4 KV Transformers , VCB, kiosk, CT, PT, Prior to the commencement of the supply / work all relevant drawings, Detailed investigation of substation and preparation of BOQ to be done by the EXISTING AND PROPOSED SINGLE LINE DIAGRAM FOR 33/11 kV. 10. COMPLIANCE WITH REGULATIONS All the equipment shall comply in all respects with the Indian Regulations and acts in force. 3 (3. Safety and Operability (SAFOP) Study Manual - Download as PDF File (. We offer a wide range of substation and transmission facility design services, from 4. 6) kV up to and including 19/33 (36) kV • AS/NZS 2344:1997 - Limits of electromagnetic interference from overhead a. Fig: 2. (PSE) can assist you in meeting the challenges of increasing loads and the increased requirements for metering, control, and monitoring. 33KV Substation Design and Estimation Cost In Phase-I, a study of existing network and availability of space for the substation and lines (up to 11 kV) Single Line Diagram of 33/11 KV Jampaijala for Tender Purpose only. Civil/Building works at Sibembe 33-11kv substation Item Description Unit Qty Rate Amount (Kshs) ELEMENT No. STANDARD DRAWINGS . Also the hard copies as per specification shall be submitted. 33 11kv substation drawings33kV & 11kV Distribution Drawings - Ebook download as PDF File (. A - Substation Standards Switching Diagram Operating Numbers Bus Configuration 33. The first semester will focus on the solar generation schematics and one-line drawings for the substation. 000 Mtrs 230 KV 15. F-1 11 KV / 433 V DTR with D. in These fault levels are based on the percentage impedance of 5% for 630kVA transformers 6. No: test test: 23-10-2017: Date of To view by post date, including past notices, please choose a date range:Sale of Tender document: 26/10/2018 to 16/11/2018 (Hard & Soft copy only) Date of receipt & submission: Up to 3:00 PM on 16/11/2018: Opening of technical BidReadbag users suggest that 02-04. schedules and drawing and requirements under these specifi cations. 33 KV V-Cross Arm For PSC Joist. Fig. 1 Proposed 500-kV Single Circuit Galvanized Lattice Steel Structures page 1 of 15 sld for 132/33 kv dub­station, somanathpur 132 kv bays transf 02 nos. com support of 132 KV or above KV class GIS equipments meeting the criteria as mentioned in 6. 272 The United Illuminating Company and the Connecticut Light & Power Company application for a Certificate of APPENDIX C SUBSTATION DRAWINGS . Single Line Diagram of 11kV Substation Substation provides the energy supply for the local area in which the line is located. Central station where power is generated by 3-phase alternators. asp Home Transnet Freight Rail Tender Notices can be down-loaded in PDF format from the Transnet Freight Rail Website, free of charge, printed and viewed. 5/19. - Preparation of Single Line Diagram General layout drawing of substation (33/11kV) Titel: Sr. set mccb tp 32a 3rx3. 33 kV is sub transmission, 11 kV and below may be classified as distribution. xls a sample of my work , take a tour in 33/11 kv outdoor substation It includes Creation of atleast one 33/11 kV (or 66/11 kV) sub-station in each block. Switching substations are sometimes used as collector and distribution stations. 33 11kv substation drawings com Cliparts and extras for teachers, students and parents by teachers and designers! ClipartXtras The aim of this project is to provide the consultancy service to Doctor Harisingh Gour Vishwavidyalaya, Sagar (MP) for substation design, feeder up to 11 kV and estimation of cost. 433 KV Station Transformer 33 KV line from Takarjala33/11 KV S/S 11 KV LADistribution Substation Manual Section 9 -33kV Substation Arrangements 9 33kV Substation Arrangements Index of Drawings DRAWING NUMBER DRAWING TITLE22-6-2017 · What is the difference between 11kV and 33kV transmission lines? Otherwise, You probably see this at substations, 33/11KV. SL. 33kv substation single line diagram PDF compact substation one line diagram symbols PDF asce substation structure design guide PDF ieee standards style Except where modified below, it is to be assumed that the amount of generation simultaneously connected is such that normal voltage will be maintained on one side of any transformer when there is a short circuit between phases or to earth on the other side. There are many different electrical bus system schemes available but selection of a particular scheme depends upon the system voltage, position of substation in electrical power system, flexibility needed in system and cost to be expensed. In In today’s life electricity plays a very vital role. 33. 33kV Step-down Three-Phase Distribution-transformer Product Details: General: 33kV series Medium-voltage transformer is a kind of low-loss, low noise, low partial discharge, low temperature rise and energy-saving transformer classified as S9 series( with no-load tap changer,OCTC) and SZ9 (with on-load tap changer,OLTC) series. of 250KVA Distribution Transformers, Revamping of 616 Nos. B47 and 48 shows a typical layout recommended for a LV metering substation. Power-Distribution-and-Substation-Projects Reference List Sl No. The electrical system shall be energized only after performing all This paper presents the design of Earthing system for 400 KV substation and calculation of its parameters. APPENDIX C TABLE OF CONTENTS SUBSTATION DRAWINGS SINGER SUBSTATION Drawing No. 9/3. Ltd. 98 Electric standards and specifications. Installation of underground and above ground conduits, cable trays, duct banks, power, control and instrument cables. Draw the single line diagram of a 33/11kV substation having the following best software drawing substation single A wide variety of 33/11kv transformer options are available 33 11kv Substation The final dimension is subjuect to the drawings confirmed after signing 5-4-2012 · I am currently working in the construction of a 33KV/11KV substation. The file contains 221 page(s) and is free to view, download or print. Modification of circuit design and interface engineering associated to facilitate the replacement of the existing 33/11kV transformer T2 and removal of 33kV switchgear at Lime Tree Place substation. 1 Nepal Electricity Authority is establishing new 220/132/33 kV Substation at Dana and new 220/132/33 kV Substationat Kus hma and associated 220 kV Double Circuit Transmission Line between the above two substations. pdf … 20Vol-2. The standard layout guides for the general arrangement of the equipments, structures, bus-bars etc. The main function of the substation is to collect the energy transmitted at high voltage from the generating station and then reduce the voltage to an appropriate value for local distribution and gives facilities for switching. Esuk Utan 2 x 7. Description: 1: Electrical Drawings: 1. The project includes the supply of 33kV busbar to accommodate a new bus section bay and bar connectors, and Voltage Transformer Detail drawing of 33/11 KV S/s control room in Urban/Rural area, earthing of 33/11 KV S/s & DTR, various fabricated materials, DTR fencing etc. 33/11kV S/s for Murram Soil. 2 . The substation design manual is not intended to replace Asset Management Standards, but rather to act as a reference document that cross-references existing standards and process documentation and plugs any gaps where Asset Management documentation does not exist. g2 lop of lakkar mkt kirti nagar. 11 KV V-Cross Arm For RS Joist. & Description: Date of Publication: Date of Submission/Value of Work: 1. Construction of 220/33 KV GIS Substation: of . com, find free presentations research about 33 Kv Substation PPT united arab emirates federal electricity and water authority detailed technical specification for 33/11kv 20/28mva power transformer, ner & rtcc panels B1/B3. Tactical WoodGas 1,568,004 views Standard Bay Width VOLTAGE BAY WIDTH 400 KV 27. How can I create a cable schedule? Through studying the connections inside the Relay and control panel, 33KV Vaccuum circuit breaker etc. Special foundations for sub stations. 33/11 kV Substations. EDS 01-0045 Overhead Line Ratings. 33/11KV Power Transformer Basic Configuration Requirements 1500V DCCB & ASSOCIATED DRAWINGS 1500V REACTOR SUBSTATION FENCING RAIL EARTH CONTACTOR (REC) 33/11kV Substations and it shall be read in conjunction with control and protection requirements, scope of work, schedule of requirement etc. Planning 33/11kV Sub-Station. kirti ngr ware housing. of DTs, Construction of 13KM of 33KV Line, 40KM of 11KV Line and 20KM of LT Line along with revamping of 20KM 33KV, 60KM of 11KV & 72 KM of LT Line. Generally pentograph and hcb type isolators are used at 400 kV and 220 kV substation which operated by remote or manually. in/irj/go/km/docs/internet/new_website/pdf/Tenders/VolumeIIISectionII. g2 lop of lakkar mkt kirti ngr. as per list are attached. KV disc insulators, support insulators , 33 KV lightning arrestors, mechanical interlocks for OPEN/CLOSE of main poles (R Y B) and earthing , jumpering, angle A capacitor voltage transformer (CVT) is a transformer used in power systems to step-down extra high voltage signals and provide low voltage signals either for measurement or to operate a protective relay. The work relating to protection, control and panels for 33/11KV Sub-stations shall comprise of development of elementary diagram, design, manufacture, test and supply of pre-wired control panels to be installed in the sub-station control room. txt) or read book online. B. 11kv 350 mva 3cx185mm2 11kv vcb,630a schematic diagram electrical distribution part - 11kv substation 250 kva d