SPECIAL REPAIR TO VCBs, RMUs AND CONNECTED HT INFRASTRUCTURE AT AC POWER HOUSE, SCHOOL OF ARTILLERY UNDER GE DEVLALI

Disconnecting all electric cables and connections from the existing VCB's, taking down, depositing in MES store yard and Supply, install & commissioning of 11 KV VCB, 630 Amps with copper bus bar of 80x10mm & rupturing capacity of 315 MVA with sufficient clearance, safety and operation inside the enclosure, CPRI approved including cable termination chamber. VCB shall have following features - (i) Circuit breaker, Rated Current : 630A, closing and Tripping coil : 240V DC, Spring Charging motor : 230V AC, STC : 26.3KA for 03 sec a) Resincast CT of suitable ratio – set 0f 03 as per OEM recommendations b) Digital Ammeter - 96 Sq MM with s/s c) Digital Voltmeter - 96 SqMM with s/s d) Digital MFM - 96 Sq MM with s/s e) 01 No O/C Relay f) 01 No E/F Relay g) Electromechanical Type Master Trip Relay h) Electromechanical Type Aux Relay for Transformer fault j) Indication Lamps - VCB – ON --- Red VCB – OFF --- Green Auto Trip --- Amber Trip Ckt. Healthy --- White Spring charged. --- Blue

Item No. 1 Continued :- R, Y, B - Phase Breaker in Service and Breaker in Test k) Breaker Control Switch --T-N-C -Non Lockable type. l) Heater with Thermostat & Switch. m) LR Switch n) P.B. --- Trip Ckt. Healthy Chk o) Panel Illumination Lamp with switch p) Socket with Switch q) MCB & Contactor r) Power pack -- 230VAC to 110VDC s) 8 Window Annunciator with Hooter

Disconnecting all electric cables and connections from the existing VCB's, taking down, depositing in MES store yard and Supply, install & commissioning of 11 KV VCB, 800 Amps with copper bus bar of 80x10mm & rupturing capacity of 315 MVA with sufficient clearance, safety and operation inside the enclosure, CPRI approved including cable termination chamber. VCB shall have following features - (i) Circuit breaker, Rated Current: 800 A, closing and Tripping coil : 240V DC, Spring Charging motor : 230V AC, STC : 26.3KA for 03 sec a) Resincast PT - Three phase top/bottom mounted of suitable ratio as per OEM recommendations. b) Resincast CT of suitable ratio – set 0f 03 as per OEM recommendations c) Digital Ammeter - 96 Sq MM with s/s d) Digital Voltmeter - 96 Sq MM with s/s e) Digital MFM - 96 Sq MM with s/s f) 01 No O/C Relay g) 01 No E/F Relay h) Electromechanical Type Master Trip Relay i) Electromechanical Type Aux Relay for Transformer fault j) Indication Lamps - VCB – ON --- Red VCB – OFF --- Green Auto Trip --- Amber Trip Ckt. Healthy --- White Spring charged. --- Blue R,Y,B Phase Breaker in Service and Breaker in Test k) Breaker Control Switch --T-N-C -Non Lockable type.

Item No. 2 Continued :- l) Heater with Thermostat & Switch. m) LR Switch n) P.B. --- Trip Ckt. Healthy Chk o) Panel Illumination Lamp with switch p) Socket with Switch q) MCB & Contactor r) Power pack -- 230VAC to 110VDC s) 8 Window Annunciator with Hooter

Supply and fix HT 33 KV out door type gang operated air-break switch suitable for horizontal or vertical mounting, fixed type complete with 9 insulators and with earth switch upto 400 Amps complete all as specified and directed.

Supplying, fixing, jointing and testing heat shrinkable cable end joint, Indoor type with and including jointing materials suitable for 11 KV, XLPE cable of size 120 sqmm, 3 core, complete all as specified and directed.

Supplying, fixing, jointing and testing heat shrinkable cable end joint, out door type with and including jointing materials suitable for 11 KV, XLPE cable of size 120 sqmm, 3 core, complete all as specified and directed.

Supply, Laying, jointing and testing underground cable heavy duty, 11000 Volts, XLPE (earthed) insulated and sheathed, armoured with multi-stranded aluminium conductor cable, laid in trenches/ducts or fixed to poles/walls or laid under roads/paths/drains/culverts duly encased in galvanised steel pipe of suitable sizes complete all as specified and directed of 120 sqmm 3 core size.

Supply & lay in trenches double walled corugated HDPE pipe 110 mm dia for protection of under ground cablesincluding pipe couplers with seal, bends, end covers etc complete all as specified and directed

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for taking out pipe line etc for repairs / laying cables etc and getting out in soft / loose soil complete all as specified and as directed by the Engineer - in - Charge.