REPAIR MAINTENANCE TO SERVO VOLTAGE STABILIZERS VOLTAGE STABILIZER OF WINDOW SPLIT ACS AND OTHER MISC WORKS UNDER GE (U) PM DELHI CANTT-10

Amount

Disconnecting and taking down faulty and defective Servo Voltage Stablizers of capacity 1000 KVA , 418 Volts from Plinth with the help of Hydra (Crane) and transporting to Contractor's workshop from DGIS and opening the top cover of the servo stablizer, carrying out the repairs /works listed at serial No. (i) to (xii) and transporting back to the site (DGIS) for installation including making all the electrical connections complete all as specified and as directed. (i) Decanting of the Servo Volatge Stablizer oil (Transformer Oil) into separate Container /barrel. (ii) Taking out the core/coil of Stablizer (iii) Painting inside of the Stablizer Tank with yellow paint and outside body with synthetic enamel paint of existing tint/colour Cleaning inside of the Stablizer using Stablizer oil. (iv) Fixing only the existing/new buck boost transformer & Dimmer (Variable Transformer) in Stablizer including heating up the core assembly to remove moisture after carrying out the repair works . (v) Renewal of rubberised gasket set for top cover, Brass spindles, LT bushes, etc. (vi) Filling of new Stablizer oil after centrifuging and testing for requird di-electric strength. (vii) Re-fixing the top cover of the stablizer with nuts, bolts and washers. (viii) Preparing Inspection report for renewal of parts etc in presence of EIC and Contractor.

(ix) The contractor shall arrange factory visit for the EIC or his representative as and when requried, testing of stablizer to be done on full load at factory. (x) Soldering/ brazing or connecting LV bus bars with sutable size nuts, bolts and washers (xi) Providing necessary insulation papers, sleeves, PVC pipes insulation sheet etc. (xii) Renewal of worn out nuts, bolts and washers. (xiii) Disconnecting the existing old unserviceable On Load Change over switch and fixing new switch. (Note :- Stablizer Oil, Centrifuging of Oil, On Load Change Over Switch & buck boost transformer & Dimmer (Variable Transformer) shall be measured and paid separately under relevant items)

ditto- All as item No. 1.00 above but of capacity 250 KVA

Supply only buck boost transformer for Servo Voltage Stablizer for 1000 KVA.

Supply only buck boost transformer for Servo Voltage Stablizer of capacity 250 KVA.

Material & Labour for reconditioning of buck boost transformer of Servo Voltage Stablizer of capacity 1000 KVA complete all as specified and as directed.

Material & Labour for repair to Dimmer (Variable transformer) of Servo Voltage Stablizer complete of capacity 1000KVA complete all as specified and as directed.

Material & Labour for repair to Dimmer (Variable transformer) of Servo Voltage Stablizer complete of capacity 250KVA complete all as specified and as directed.

Supply and fixing in repairs Servomotor synchronus motor for Servo Voltage Stablizer of capacity 1000 KVA including taking down old unserviceable burnt motor complete all as specified and as directed.

Supply and fixing in repairs Servomotor synchronus motor for Servo Voltage Stablizer of capacity 250 KVA including taking down old unserviceable burnt motor complete all as specified and as directed.

Supply only On Load Manual Changeover Switch Disconnector 1600 A, Open Execution, 4 Pole, 415 V AC, suitable for fixing with the existining Servo Volatge Stablizer of 1000 KVA Capacity. Make :- L&T/Schneider/ C&S

Supply only On Load Manual Changeover Switch Disconnector 400 A, Open Execution, 4 Pole, 415 V AC, suitable for fixing with the existining Servo Volatge Stablizer of 250KVA Capacity. Make :- L&T/Schneider/ C&S

Material & Labour for on line Dehydration/filteration of Servo Voltage Stablizer oil including filteration using automatic centrifuging machine minimum three cycles to achieve dielectric strength 40 to 60 KV breaking capacity at 2.5mm gap by absorbing and abolishing all sludge particles as per BS-66-1963 including topping up with new transformer oil as required complete all as specified and as directed. Note :- (i) Centrifuging Machine with all T&P & testing machine of oil required for dehydration shall be arrange by contractor. (ii) Oil required for topping up the stablizer will be measured & paid separately as supply only under respective item of this Sch.

Supplying and filling/topping up transformer oil low viscocity, dielectric strength 35 to 40 KV breaking voltage for topping up servo voltage stablizers duly centrifuging including filter action by using automatic centrifuging machine to achieve min 35 to 40 KV breaking capacity at 4 mm gap by absorbing and abolishing all sludge particles for use as per BS-B-66-1983 complete all as specified and as directed..

Disconnecting from mains/taking out existing unserviceable/defective Servo Voltage of capacity 10 KVA of any size, type, and make removing from foundation transporting to repair workshop drain out old stablizer oil, taking out core taking out the unserviceable burnt out transformer, re-winding with super enameled copper wire of existing size applying proper insulation, varnish drying in oven, painting inside of the Stablizer Tank with yellow paint and outside body with synthetic enamel paint of existing tint/colour assembling and filling up the transformer oil transporting back to site, re-installating, testing and commissioning complete all as specified and as directed. Note:- Oil required for filling in the stablizer shall be measured & paid separately as supply only under respective item of this Sch.

Collecting of unserviceable voltage stabilizer of capacity 2 to 5 KVA from the MES store yard of AGE E/M (AC) or dismantling the same from site and transporting to contractors workshop for locating the fault including checking the serviceability of electrical/electronic circuits relays and replacement of defective spare parts , reassembling after making connections, testing by applying low and high voltage input to get the 230 volts correct output and transporting back the same to MES store yard complete all as specified and as directed. Note :- Replacement of defective spares and rewinding of transformer of voltage stabilizer will be measured & paid separately under relevant items and Labour charges for taking out old spares & fixing of new spares shall deemed to be included in unit rate quoted.

Supply only following new spare parts of Voltage stabilizer of capacity 2 to 5 KVA :-

Voltmeter (Analog) 0 to 300 volts any type shape single phase 50 Hz AC supply. Make :- AE/ MICO/ Rishabh

Digital type Voltmeter 0 to 300 volts any type shape single phase 50 Hz AC supply. Make :- AE/ MICO/ Rishabh

Printer circuit control card for 2 to 5 KVA voltage stabilizer.

Input/output switch. Make :- AE/ MICO/ Rishabh

Push on switch. Make :- AE/ MICO/ Rishabh

Indicator with neon bulbs. Make :- AE/ L&T/ C&S

Trigger Transformer for 2 to 5 KVA voltage stabilizer

Relay for 2 to 5 KVA voltage stabilizer. Make :- Renutrol/ Technomac

Time relay and High/low voltage cut off circuit with relay suitable for 2 to 5 KVA voltage stabilizer. Make :- Renutrol/ Technomac Note for item Nos 16.01 to 16.09 :- Labour of item Nos 16.01. to 16.09 to be incorporated in item No 15 here-in-before

Taking out the burnt winding of transformer of voltage stabilizer and preparing core after cleaning by suitable cleaning agent and rewinding the transformer of voltage stabilizer with super enameld copper wire of existing gauge including varnishing, heating and refitting of capacity 3 KVA voltage stabilizer, complete all as specified and as directed.

ditto- all as per item No. 17 here-in-before but 4 KVA complete all as specified and as directed.

ditto- all as per item No. 17 here-in-before but 5 KVA complete all as specified and as directed.

Disconnecting all electrical connections of existing unserviceable voltage stablizers of any make and capacity and Supply, Installation & commissioning in repairs new voltage stabilizers for automatic operation single phase naturally air cooled indoor type with copper wounded transformer designed for input variation between 160 Volts to 260 Volts with output voltage stablized at 230 Volt with accuracy + 9% with time delay facility and of capacity 4.0 KVA complete all as specified and as directed. (Make :-Indian Transformer & Electricals P Ltd. (Gurgaon)/ Vinitec/ /Volina/Sinetrac/V Guard/ IECO)

Disconnecting all electrical connections of existing unserviceable voltage stablizers of any make and capacity and Supply, Installation & commissioning in repairs new voltage stablizers for automatic operation single phase naturally air cooled indoor type with copper wounded transformer designed for input variation between 160 Volts to 260 Volts with output voltage stablized at 230 Volt with accuracy + 9% with time delay facility and of capacity 5.0 KVA complete all as specified and as directed. (Make :-Indian Transformer & Electricals P Ltd. (Gurgaon)/ Vinitec/ /Volina/Sinetrac/V Guard/ IECO)

Supply & fixing PVC insulated 4 core copper conductor cable of size 4 sqmm for connections in LT Panels including copper thimbles including taking down old unserviceable one complete all as specified and as directed. (Make:- RR KABEL./ FINOLEX/ POLYCAB/ KEI INDUSTRIES LTD./ HAVELLS.)

ditto- all as per item No. 22 here-in-before but of size 6 sqmm three core complete all as specified and as directed. (Make:- RR KABEL./ FINOLEX/ POLYCAB/ KEI INDUSTRIES LTD./ HAVELLS.)

Material & Labour for earthing with galvanised steel earth plate electrode of size 60cmx60cm x6mm thick buried directly in ground (earth pit not less than 2.25m deep below the ground level) with top edge of the plate not less than 1.5m below normal ground level, connected to the galvanised earth lead 25x4mm by means of bolts, nuts check nuts and washers of galvanised iron wire 4mm as earth lead as shown in electrical plate No. 3 of SSR Part-I connected to earthing test point all as specified or indicated including testing on completion including necessary excavation and earth work in soft/loose soil, returning filling, disposal of surplus soil, earth pit in PCC 1:3:6 type C-1 using 20mm graded stone aggregate pit, funnel, 20mm dia GI medium grade watering pipe, 40mm dia GI medium grade earth lead protection pipe and pre-cast earth pit cover 50mm thick made of RCC (1:1.5:3) type A1 duly reinforced with 8mm dia TMT bar @100mm c/c both ways, one lifting handle made out of 10mm dia TMT bar 250mm long embedded in cover slab and cover, wire, copper lugs etc mesh, chorcoal and common salt in alternate layer of 15cm thick including taking down old unserviceable one complete all as specified and as directed. (Make :- of GI Pipe:-JINDAL/ TATA/ BST/ PRAKASH TUBES/ OSWAL) Note:- Each protection pipe and earthing lead upto and including 7.5 meter length is deemed to be included in the qouted rate of this item.

Supply and fixing earth continuity conductor or main earthing lead (GI strip) of size 25 x 4 mm fixed to plinth or buried in ground or drawn in GI pipe or any other situation as indicated for loop earthing etc including taking down old unserviceable one complete all as specified and as directed.

Supply and fixing in repair MCB TP 63 Amps, capacity 10 KA, C curve including taking down old unsv one complete all as specified and directed. (Make:- L&T/ Siemens/Legrand/ ABB/ C & S.)

Supply and fixing in repair MCB TP 40 Amps, capacity 10 KA, C curve including taking down old unsv one complete all as specified and as directed. Make:- L&T/ Siemens/Legrand/ ABB/ C & S

Supply & fixing MCCB 4 Pole of capacity 100 Amps, 50 Hz, 415V with rupturing capacity of 25 kA with thermal magnetic release including taking down old unserviceable one complete all as specified and as directed. Make:- L&T/ Siemens/Legrand/ ABB/ C & S.

Supply & fixing MCCB 4 Pole of capacity 63 Amps, 50 Hz, 415V with rupturing capacity of 25 kA with thermal magnetic release including taking down old unserviceable one complete all as specified and as directed. Make:- L&T/ Siemens/Legrand/ ABB/ C & S

Supply & fixing MCCB 3 Pole of capacity 100 Amps, 50 Hz, 415V with rupturing capacity of 16 kA including spreader terminals with taking down old unserviceable one complete all as specified and as directed. Make:- L&T/ Siemens/Legrand/ ABB/ C & S

Supply & fixing MCCB 3 Pole of capacity 63 Amps, 50 Hz, 415V with rupturing capacity of 25 kA including spreader terminals with taking down old unserviceable one complete all as specified and as directed. Make:- L&T/ Siemens/Legrand/ ABB/ C & S

Supply and fixing in replacement MCCB encloser for 63 Amps MCCB complete all as specified and as directed.

Supply and fixing in replacement MCCB encloser for 100 Amps MCCB complete all as specified and as directed.

Supply, Laying, jointing and testing of under electric cable XLPE insulated, of following sizes.1100 volt grade heavy duty armoured with stranded aluminium conductor laid in trenches/duct/pipe including all electrical connection with required lugs and nuts, bolts complete all as specified and as directed. (Make:- RR KABEL./ FINOLEX/ POLYCAB/ KEI INDUSTRIES LTD./ HAVELLS.)

4 core 10 Sqmm

4 core 16 Sqmm

4 core 25 Sqmm

3.5 core 35 Sqmm

Material & Labour for Dismantling of LT cable of Different Sizes,cutting of unservicable lugs ,glands etc and making insulation by insualtion tapes of different color and providing the new lugs and doublle compression type cable Glands etc complete all as specified and directed. Note:- Cable glands and lugs will be measured and paid seperately

Material & Labour for Overhauling, servicing, Testing of ACB 800Amps/630 Amps including the following:- (i) Primary injection test, & Release test (ii) All types of RELAY - Testing, servicing & certification at site,Check condition of arcing contact and gap between fixed and moving arcing contacts shall be checked. (iii) Checking the reset mechanism, tripping of breaker through push button,Tripping of ACB manually through volt metric release. (iv) Checking tripping of ACB through protection release, (v) Checking and adjust freeness of DN and volt metric release trip rod, (vi) Checking presence and proper tightening of hardware. Checking condition and alignment of jaw contact with cradle terminals, (v) Checking and adjusting gap between hylam sheet and side plate, (vi) Checking ACB tripping through shunt release.

Supply, installing, testing and commissioning in replacement Automatic Phase Sequence Corrector device inside a outdoor panel suitable for 415 volt, 3 phase 4 wire 50 Hz, 63Amps PAC supply system with following items:- 1. Connection wire for existing Outgoings of 63 Amps. 2. 2 sets of Power Contactor with its NO-NC Block & relays suitable size for upto 10TR PAC. 3. Multifuntion Meter for connected items CTs. of Suitable size. 4. Indicator lamps (RYB) and its connecting wires. (Make:- Minlec/ L&T/ Siemens/ Legrand/ ABB/ Schneider/ C&S/ USGC)

P S TRADERS (BID ID -3144507)

Electro Tech Systems (BID ID -3151771)

YASHVI ENGINEERS (BID ID -3151069)

GILL ENGINEERS (BID ID -3147050)

M P TYAGI ENGINEERS AND CONTRACTORS (BID ID -3145092)