Providing VCB Panel, Transformer, APFC Panel arrangements to Mundiyampakkam GH at Villupuram District

Amount

Single phase switch with socket. Cubicle illumination lamp, Door limit switch, MCBs/Fuses for AC/DC Control 8.Enclosure MS Sheet Steel enclosure suitable for indoor installation power coated with Siemens grey paint finish Incoming - 1 set Out going - 3sets 9.Termination Incoming (Excluding cable termination kits, lugs and glands) Incomer - Rear Cable Bootom entry Outgoing - Bus bar Outcoming (Excluding cable termination kits, lugs and glands) Incomer - Busbar Outgoing - Rear Cable Bootom entry Panel mounting type surge arrester- 18 KV, 10 KA Make : SYSTEM CONTROL

Supply, erection, testing and commissioning of 500 KVA 22 KV/ 433 V, 50 HZ off load tap changing copper wound oil immersed naturally self cooled core type Indoor type distrubtion transformer for delta / star connections as per vector group Ref Dyn 11 with the nutral brought out on star side conforming to relevant IS and fitted with the following. A) HV Cable end box suitable for connecting 3 core 185 sq.mm 22 KV XLPE HT Cable B) LT Cable end box suitable for connection 3 runs of 31/2X400 sq.mm LTUG Cables C) Conservator with shut off valve D) Dehydrating silicagel breather E) Conservator drain plug valve F) Tank drain plug valve G) 4 Nos. Plain rollers H) Thermomenter pocket with thermometer with capillary tubing for maxmium reading position I) Drain Plug valve J) Filter valve K) Oil filling hole end cap L) Oil level gauge M) Two body earthing terminal N) Rating and terminal marking diagram plate O) Lifting hooks / lifting eyes /Jacking pad to facilitate movement to transformer and easy ground level P) Off load hand operated tap changing switch at standby height from ground level Q) Tapping on primary winding for voltage varaition +5% to -5% R) Neutral on L.V side to be available for 4 wire supply and brought out through bushing for earthing

S) Air release devices T) The transformer sholud be supplied with first filling of oil U) All removable covers shall be provided with weather proof hot oil resistant, resistance gaskets to prevent leakage of water into core and oil from the tank with low no load losses and full load losses impedence 4.33% (Make : IPL /Voltech)

Supply and laying 22 KV 3 core185 sq.mm XLPE HTUG Cable in existing trench / pipe laid in ground.

Supply and providing cable and termination suitable for 22 KV 3 core 185 sq.mm XLPE HTUG cable with necessary Indoor type heat/cold shink able joint kit and accessories (Make : Ray Chem/ MSeal /Acechem)

Supply and erection of 150 KVAR 415/440Volts 50Hz 3 Ph automatic power factor correction panel, 12 stage, (at 0.95 lag), made up of powder coated, 14/16 SWG CRCA sheet steel enclosure with 1 1/2" x 1 1 1/2" x 1/2" AI Frame work with RCC concreting foundation and bolted to masonry pedestal with 400A TPN MCCB as incoming (L&T/Siemens/C&S) with Delta Connected capacitors (BCH/EPCOS) MOO Type operating in multiple stage with 3 current and Voltage Transducers (CVT) at the phases simultaneously to activate the desired power factor switching time between steps 120 seconds, switching off time in case of fault 3 seconds with a LCD display to show the following Parameters. a. Vr – R phase Line Voltage b. Vy – Y phase Line Voltage c. Vb – B phase Line Voltage d. Ir – R phase Line current e. Iy – Y phase line current f. Ib – B phase Line Current g. KW – Present Kilo Watts h. RKVA – Present KVAR Demand i. KVA – Present KVA j. PF – Present Power Factor k. Number of Capacitor bank ON/OFF l. Provision to indicate the imbalanced load m.Provision to indicate the change in phase Sequence n. The APFC Panel Should also have built in protection for current imbalance. For high Voltage/Low Voltage cut off, single phase Preventer, provision for inductor coil to cater the in-rush currents, line surges, Current Limiters, Current Sensor, etc., with connection complete and as per the relevant IE Rules. Eight Stages of Automatic Power Factor control panel with necessary connection. Make : L&T /or equivalent

Supply and laying of 4 Run of 3.5C x 185 sq.mm of armoured LTUG cable in a trench to be excavated at a depth of 0.75 metre putting 0.15 metre layer of sand and covering the cable completely with bricks and sand and refilling the earth to make good. (Transformer to MV Panel )

Supply and fixing of brass cable gland for 3-1/2 x 185 sq.mm. PVC armoured LTUG cable with earth connection.

Supply and providing cable end termination of 3-1/2 x 185 sq.mm. PVC LTUG aluminium armoured cable with necessary aluminium cable sockets by crimping etc., with electrical connection complete.

Supply and run of 25mm x 6mm GI Flat Down Conductor with necessary clamps / supports on wall / floor / ground for earth connection. (Transformer Bus Duct Body earth).

Supply and run of 50mm x 6mm GI Flat Down Conductor with necessary clamps / supports on wall / floor / ground for earth connection.

Supply and providing of Plate Earth electrode with 2mts of Class 'B' GI pipe 40 mm and 3mm thick of copper plate of size 12" x 12" x 3 mm revitted to the pipe at one end and providing a funnel at the top end with 1runs of 25mm x 3mm copper flat from the copper plate to the top of the electrode and embedding the above electrode in a pit to be excavated at a depth of 3mt and of size 60cm x 60cm and filling up the pit with charcoal, salt, sand.

Design, Fabrication, Supply, Erection, Testing and Commissioning of 22 KV HT Adapter Panel With Busbars suitable for Coupling the existing 22 KV Megawin VCB panel (Old Type) with the new Single Panel 22 KV VCB. The Panel should be dust and vermin proof and complete to satisfy the latest IE rules and CEIG guidelines, with Siemens grey powder coating with 22 KV danger Board. Erection of panel board complete with suitable foundation bolts and nuts including suitable M.S Channel, concreting, testing and commissioning. (Make : Megawin/System Control)

Preparation of site plan physical layout electrical schematic diagram in 3 sets, getting drawing approval from CEIG preparation of completion report, rectification report and arranging CEIG inspection and obtaining CEIG safety certificate.

rv electricals (BID ID -1534407)