CCE(R and D)E/ENQ-69/EM/2P/2020-21

Amount

33/11 kV 2.5 MVA Transformer Supply,installation,testing and commissioning of 33KV/11KV 2.5MVA outdoor ONAN Copper wound Power Transformer with On load Tap changer +5 to-10% in steps of 2.5% with RTCC Panel Consisting of Automatic Voltage regulator as per detailed Technical Specifications consisting of Buchholtz'sTechnical Specifications consisting of Buchholtz's relay with Alarm and trip contacts, winding temp and Oil temp alarm contacts, lifting lugs, earthing stud and marshalling box as per manufacturing drawings. Oil level Indication with alarm circuit, Pressure Relief Valve, etc. as complete in all respect as required. Secondary side suitable to 3Cx300 Sq.mm XLPE HT Cable box and Primary side suitable cable Terminal box for 33 KV XLPE 3 core 185 Sqmm cable. The transformer shall be as per latest BIS standard (Make :- Kirloskar/Volt Amps / ABB / Schneider)

33 kV VCB Panel Supply Installation Testing and commissioning of 36KV,1250A Floor Mounted Indoor Vacuum Circuit Breaker Panels. The SF6/VCB (26KA/3 sec) Panel Horizontal withdrawals made of 14Swg CRCA Sheet Steel Clad, Synthetic Eporxy powder coated finish painted, totally enclosed free standing cubicle type, suitable for operation on 33KV 3Ph, 50Hz, AC earthed system. full set complete with bus bar inter connections contol wiring designation labels, caution notice, including pad locking facilities.VCB Shall be motorised spring Charging (230V healthy and shall be as per detailed specifications.dual core CTs (100-50/1A+1A) are to be Provided for Protection and Metering of Burden and class of Accuracy as specified in Specifications, 33KV/110V PT with Voltmeter,Ammeter,PF meter, KWH Meter, Relays type MICOM 127 Numerical with Hi-Set current & Voltage, Over load and Earth fault, Buchholtz's relay with Alarm and trip contacts, winding temp and Oil temp alarm contacts, Oil level Indication with alarm circuit etc Phase Indicating lamps,Breaker On/Off/Trip and Spring Charge and trip circuit Healthy indications with Local & Remote operation. Make : ABB / Kirloskar / Schneider / L&T

HT Cables: Supply, Laying and commissioning of following size 33/11KV grade XLPE Insulated armoured Aluminium Conductor underground cable in ground at a depth of 1000mm below ground level including excavation and refilling of earth after cables are laid,providing protection with sand and bricks at sides and RCC slab on top and cable route markers at every 15m interval and also at the turnings.The cable shall confirm to IS 7098/Part-II a) 3CX185Sq.mm, 33KV XLPE Armoured cable Make: Havells / Finolex / KEI / Polycab

b) 3CX185Sq.mm, 11KV XLPE Armoured cable Make: Havells / Finolex / KEI / Polycab

Providing Indoor/Outdoor Heat Shrinkable end terminations for the cable specified above with all materials,Bi-metallic Lugs using Crimping tool, 33/11KV Insulation tape,Identification tags etc.,including end termination and earthing of termination kit a) 3CX185Sq.mm 33KV Indoor type terminations. Make : Raychem / CCI

b) 3CX185Sq.mm 11KV Indoor type terminations. Make : Raychem / CCI

Supply, installation, testing and commissioning of over current, earth fault relay MICOM P-122 for 11kV existing VCB

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)

Earthing with copper earth plate 600 mm X 600 mm X 3 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required.

Supplying and laying 25 mm X 5 mm copper strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of brass nut bolt & spring washer spaced at 50mm)

Dismantling / Shifting / Removal of All external fittings of the Transformer / HT VCB

Credit for Old 2.0 MVA 33/11 KV Transformer

Credit for Old 33kV HT VCB

Santosh & Associates

CHARAN ELECTRICALS

MCC MECHANICAL AND ENGINEERING CORPORATION