CA NO. GE (I) (AF)/SHL/ OF 2020-2021 REPAIR/REPLACEMENT OF LT SWITCH GEARS, ACB, MCCB INCLUDING LT PANEL AND ALLIED WORKS AT HQ EAC (U) AF, UNDER GE (I) (AF) SHILLONG

Amount

S & F in replacement Air Circuit breakers, 4 Pole, manual Draw out type, current rating 630 Amps, breaking capacity 50 kA, microprocessor based with in-built 2NO + 2 NC auxilary contact complete all as directed. Model & Make : Cat Part No. SL96061 of Make L & T or equivalent model of makes listed in list of Makes.

S & F in replacement Air Circuit breakers, 4 Pole, manual Draw out type, current rating 800 Amps, breaking capacity 50 kA, microprocessor based with in-built 2NO + 2 NC auxilary contact complete all as directed. Model & Make : Cat Part No. SL96062 of Make L & T or equivalent model of makes listed in list of Makes.

Disconnecting carefully all incoming and outgoing cables from manual draw out type Air Circuit Breaker of 630 Amps rating, breaking capacity 50 kA, carrying out complete overhauling and servicing, re-assembling existing serviceable parts/new replaced spare parts/components including re-connecting all incoming and outgoing cables & necessary testing and commissioning complete all as specified and directed. Notes : (a) Cost of labour for replacement of new spares/component shall be deemed to be included in quoted rates. (b) New spare parts/components shall be measured and paid as Supply only under respective items of BOQ here-in-after. (c) Cost of cosumables like Oil/Grease/Lubricants shall be deemed to be included in quoted rates. (d) Overhauling and servicing of ACBs to be carried by engaging authorised service engineer of manufacturer.

Supply only following spares/components of manual draw out type Air Circuit Breaker of 630 Amps rating, breaking capacity 50 kA complete all as specified and directed :-

Vertical terminal adaptor of rating 400-1250 S1/800-1000 C. Model & Make : Cat Part No. SL93281OOOO of Make L & T or equivalent model of makes listed in list of Makes.

LED indicating lights

Lockable trip push button (LTPB) type BB . Model & Make : Cat Part No. SL93148OOOO of Make L & T or equivalent model of makes listed in list of Makes.

CT for SR 18G/SR18G + D 630 S1 Fix and Draw out . Model & Make : Cat Part No. SL37495OOOO of Make L & T or equivalent model of makes listed in list of Makes.

Earth fault release (For DN1) type EF1 (10%, 20% In) . Model & Make : Cat Part No. SL91340OOOO of Make L & T or equivalent model of makes listed in list of Makes.

Shunt release type EA : 110V DC . Model & Make : Cat Part No. SL92718O1OO of Make L & T or equivalent model of makes listed in list of Makes.

Under Voltage release Type MV : 240V AC . Model & Make : Cat Part No. SL92720BOOO of Make L & T or equivalent model of makes listed in list of Makes.

Automatic transfer controller Type AuXC-2000 controller . Model & Make : Cat Part No. ATC2000OOOO of Make L & T or equivalent model of makes listed in list of Makes. {Notes : (a) Genuine spare parts/components as originally fitted in ACB shall only be provided during repairs/replacement. (b) These genuine spare parts/components shall be procured through OEM/their authorised distributers or dealers/service frenchise/service stations (Authosised to deal in genuine spare parts/components)

S & F in replacement MCCB four pole 125 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 25 KA at 415 V AC , 50 Hz complete, all as specified & directed.

S & F in replacement MCCB four pole 200 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 36 KA at 415 V AC , 50 Hz complete, all as specified & directed.

S & F in replacement MCCB four pole 250 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 36 KA at 415 V AC , 50 Hz complete, all as specified & directed.

S & F in replacement MCCB four pole 400 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 36 KA at 415 V AC , 50 Hz complete, all as specified & directed.

S & F in replacement MCCB four pole 630 Amp confirming to IEC 60947-2 & IS – 13947-3 thermal magnetic release and adjustable over load setting 0.8 – 1.0 x In and adjustable short circuit setting 6 – 10 x In and rupturing capacity 50 KA at 415 V AC , 50 Hz complete, all as specified & directed.

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