SPECIAL REPAIR TO REPLACEMENT OF BER VOLTAGE STABILIZER AND PROVN OF VOLTAGE STABILIZER FOR LIFT AT BAIRD PLACE UNDER GE UTILITY PLANT AND MACHINERY DELHI CANTT-10

Amount

Supply, Installation, testing and Commissioning of voltage stabilizer for automatic operation single phase, air cooled, digital display, copper wound , wall mounted , indoor type with digital voltmeter & designed for input voltage variation between 160 to 260 Volt with output voltage stabilized at 220 volts ± 9 % , Calibration accuracy ± 3% with Intelligent time delay facility (Time delay realy of 2 to 3 minutes) and high low voltage cut off and of capacity 4.0 KVA Conforming to BIS:- 8448:1989 reaffirmed 1998 complete all as specified & as directed. (Make-AE/ APLAB/ ANDREWYULE / SINETRAC/ VOLINA/ VINITEC/ IECO/ V-GUARD/ MICROTEK/INDIAN TRANSFORMERS AND ELECTRICALS). Note:- Test certificates as per IS to be submitted to Engr-in-Charge before release of payment

Supply, Installation, testing and Commissioning of voltage stabilizer for automatic operation single phase, air cooled, digital display, copper wound , wall mounted , indoor type with digital voltmeter & designed for input voltage variation between 160 to 260 Volt with output voltage stabilized at 220 volts ± 9 % , Calibration accuracy ± 3% with Intelligent time delay facility (Time delay really of 2 to 3 minutes) and high low voltage cut off and of capacity 5.0 KVA Conforming to BIS:- 8448:1989 reaffirmed 1998 complete all as specified & as directed. (Make-AE/ APLAB/ ANDREWYULE / SINETRAC/ VOLINA/ VINITEC/ IECO/ V-GUARD/ MICROTEK/INDIAN TRANSFORMERS AND ELECTRICALS). Note:- Test certificates as per IS to be submitted to Engr-in-Charge before release of payment

Supply, installation, testing and commissioning of copper wounded Indoor Type Servo Voltage Stabilizer, 3 phase 4 wire AC supply with 50 Hz frequency for automatic operation naturally oil cooled designed (for unbalanced input and unbalanced load) for input variation between 360V to 460V with output voltage stabilized at 415 V ± 1% (adjustable), 3 phase 4 wire AC and Rate of correction 8 Volts/Second for single phase and 13 Volts/Second for Phase to Phase capacity 250 KVA, suitable for operation between 0 to 50 degree Celsius ambient temperature and conforming to BIS 9815 : Part –I : 1994 reaffirmed 2009 having complete all as specified & as directed alongwith following Specifications. (i) Waveform distortion should be Nil. (ii) Efficiency shall be more than 95% on full load. (iii) Response time not to exceed 20 MS. (iv) Immune to load PF & supply frequency variations. (v) Duty cycle continuous 24x7. (vi) sensitivity (±) 1%

Supply install,testing and commissioning of copper wounded, wired & termination servo voltage stabilizer 30 KVA, 3Phase,4 wire AC supply with 50HZ frequency for automatic operation naturally oil cooled designed (for Unbalanced input and unbalanced load ) for input variation between 360V to 460V , AC with output voltage stabilized at 415V +1% (adjustable ) 3phase 4wire AC and speed of correction 8 voltage per sec for single phase, indoor type as per IS : 9815 (Part-I) reaffirmed suitable for operation between 0 to 50 degree Celsius ambient temperature and conforming to BIS 9815 : part 9815 reaffirmed. The servo stablizer for easy movement shall consist of following features complete all as specified & directed by Engr-in-Charge/ GE:- (I) waveform distortion should be Nil. (II) Efficiency shall be more than 97% on full load. (III) Response time not to exceed 10MS . (IV) Immune to load PF & Supply frequency variations. (V) Following protection should be provided :- (a) Automatic low/high voltage cut off in the output with audio visual alarm cum cancellation and acknowledgment facility. (b) Short circuit protection in each phase with Led indicator lamps and with a common MCCB ,4 Pole of suitable capacity to trip of the output when the input supply /load goes beyond limits. (Make:- L&T/ LEGRAND/SEIMENS/ABB). (c) Single Phaseing protection (phase missing/phasereversal alarm and cut off). (VII) Output voltage setting (by potentiometer in AUTO mode & by Raise/lower push button in manual mode). (VIII) Operation Auto/Manual. (IX)Power loss should be less than 3% at full load. (X) No load losses should be less than 1%.

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 by means of bolts, nuts check nuts and washers of galvanised iron or steel using GI strip of 32 x 6 mm as earthing 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, charcoal and common salt in alternate layer of 15cm thick complete all as specified and directed. 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.

M & L for earth continuity conductor or main earthing lead wire fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/ pipe or fixed to poles or any other indicated situation for loop earthing etc using 32x6mm galvanised iron earth strip complete all as specified & directed by Engr-in-Charge.

Supply and fixing galvanised steel tubing 40 mm bore, medium grade with all fittings (such as bends, elbows, tees, short plugs and union etc.) fixed on wall or floor complete all as specified and as directed.

Supply, laying & fixing XLPE insulated, armoured heavy duty electric cable with stranded aluminium conductor, 1100 volts grade, cross-sectional area 25 sqmm 4 core laid on wall/ duct or floor including necessary clamps, cable lugs, glands, accessories etc. complete all as specified & directed by Engr-in-Charge.

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