Electrical Works for augmentation of capacity of PTR at Gobardanga 33 by 11 KV Substation under Habra Division WBSEDCL

Amount

Supply & fixing of 150 mm Dia G.I. pipe for rising of 11 KV 3C X 300 sqmm cable (as per instruction of site engineer)

33 KV Current Transformer

Erection and commissioning of 33 KV Current Transformer on existing structure and Necessary Connection with ACSR 200 sq mm conductor with supply & erection of water proof hinge door junction box of good quality SMC and Compression type Al connectors at both end of CTs with Bi-metalic Plate (CTs 400-200/1A 2C = 2C/200-100/1A 3C & ACSR 200sq mm will be supplied by WBSEDCL) (12 NOS CT =04 SET )

33 KV Indoor type, SCADA compatible Control and Relay Panel

Erection and commissioning of 33 KV Indoor type, SCADA compatible Control and Relay Panel for individual control of Power Transformer with Differential & Feeder on concrete floor by grouting 75×40×6 mm G.I. Channel (to be supplied by the agency) and cutting of concrete base in control room including necessary connection with Relays, Metering/ Measurements equipments etc. with supply and fixing of Gland, Ferrules, PVC Tape and Sockets etc.(Only CR Panel for PTR will be supplied by WBSEDCL)

RTCC Panel

Erection and commissioning of RTCC Panel on concrete floor by grouting 75×40×6 mm G.I. Channel (to be supplied by the agency) and cutting of concrete base in control room and connect in all aspect with 33/11 KV, 10 MVA Power Transformer including necessary connection by supply and fixing of Gland, Ferrules, PVC Tape, Sockets etc. (Only RTCC Panel will be supplied by WBSEDCL)

Panther Bus

Supply & Installation of Bi metalic connector PTR HT stud to Pipe Bus (Sample to be approved by the Site Engineer)

Supply & Installation of Bi metalic connector PTR LT stud to Pipe Bus (Sample to be approved by the Site Engineer)

Erection of Panther Bus (3 wire) including laying,hoisting, jointing etc

Erection of Al 1.5" Bus pipe (including supply of Al 1.5" bus pipe, Bus support connector) with jointing

Making of compression joint for ACSR Panther

Supply & Erection of Lattice G.I. structure for electrical equipments etc. all complete as per approved drawing, Specification and direction of the Engineer (drawing supplied by WBSEDCL). ( galvanizing as per IS:4759 and zinc coating shall not be less than 610gm/sq. meter for all structural steel members in Hot Dip Galvanising Method.)

11 kV Cable support end structure with LA (Ref drg: PLN(D)/SS/11)

Laying of Control Cables in cable trench/ pipes/underground/overhead(with fixing of Cable tray) laying including their termination at indoor/outdoor terminals including supply of glands, lugs, cable ties, tagging etc as required as per Technical Specification, approved Drawing of WBSEDCL & Scope of works

4 Core 2.5 sqmm armored, stranded copper conductor, PVC insulated and PVC sheathed cable

8 Core 2.5 sqmm armored, stranded copper conductor, PVC insulated and PVC sheathed cable

12 Core 2.5 sqmm armored, stranded copper conductor, PVC insulated and PVC sheathed cable

Laying/Relaying,Dressing, testing and commissioning of power Cables in cable trench(excavated/pucca with laying the slab)/ pipes/underground/overhead/ terminal structure including their all necessary connection at indoor/outdoor with supply of Glands, Lugs, Ferrules, Tags etc. and Crimping Socket etc. (XLPE/PVC cable will be supplied by WBSEDCL)

XLPE 11 KV 300/400 SQ MM UG CABLE

Jointing of O/D type heat shrinkable and termination Jointing Kit for 11KV, 3CX300 sq mm XLPE Cable

Jointing of I/D type heat shrinkable and termination Jointing Kit for 11KV, 3CX300 sq mm XLPE Cable

Erection of Earthing complete as per TS (All materials including G.I. Flat will be supplied by the contractor)

Neutral point earthing arrangement of PTRs by 3mtr long 50mm dia having conical shape at the bottom with 12mm perforation on the body of the pipe applying salt and charcoal at the alternate layer along the GI pipe and connection with existing earth mat (Charcoal, salt and GI pipe will be supplied by agency)

Drawing of earth lead with 50 x 6 mm G.I flat for earthing of equipment installed inside control room building and connection arrangement from earth bus to equipment such as 11kV VCB, RTCC panel, CR panel, Battery charger etc by tag welding with necessary painting of earthing bus joints.

Dismantling of 6.3 MVA 33/11 Kv Power Transformer & Return to store

Dismantling of 33 Kv CT 200-100/1-1 A & Return to store

Dismantling of 33 KV C&R panel and return to store

M/s. K.R. Construction (BID ID -6125966)

Zenith Enterprise (BID ID -6126410)

K. P. CONSTRUCTION (BID ID -6126271)