Supply, Delivery And Installation Of Different Electro-Mechanical Accessories At Paratpur Pwss Under Bolpur Mechanical Division, Phe,Dte., birbhum-West Bengal

Supply, Delivery And Installation Of Different Electro-Mechanical Accessories At Paratpur Pwss Under Bolpur Mechanical Division, Phe,Dte.-Supply and delivery at site of of following 3phase, oil cooled type Servo Motor operated copper wound line voltage corrector conforming to IS-9815 (Pt.-1)- 1994 suitable for un-balanced input voltage with following specification including first filling oil as per IS-335 where applicable. a) Input Voltage:- 3 phase, Main supply may or may not be balanced with respect to Phase to Phase- 200V-500V Phase to Neutral-115V-290V. b) Output voltage:-3 phase balanced output voltage. Phase to Phase- 400Vor 415V± 1%, Phase to Neutral- 230V-240V ± 1% (Provision should be made to adjust the Variation of output voltage per phase by a variable pot oil within ± 5% of output).c) Line regulation:- Out put voltage should remain well with ±1% of set voltage (From Minimum to Maximum i.e. either 400V. or 415V. Supply variation).d) Load regulation : Output voltage should remain neutral well within ±1% of set voltage be ( From no load to full load ) i.e. either 400V. or 415V.e) Correction speed:- Better than 35 Volt / Second. f) Efficiency:- Better than 95% on full load.g) Cut off limit (minimum &maximum ) by limit switch with Audio & Visual.h) Metering Indication:- By Selector switch provision should be made available to measure input mains supply and output voltage other stabilizer for load current measurement an Ammeter with selector switch should be available.i) Lamp Indication :- For Input & Output should be provided. ( 3 lamps per side ).j) MCB Protection: For Input side. k) Load protection : HRC Fuse on each output phase should be availablel) Output over shoot:- Beyond 210V to . 255V /phase in case of “ MANUAL MODE” & voltage protection :AUTO MODE” operation.m) VISUAL Indication for under voltage & over voltage of output. n) Manual Mode:- Up & Down correction with O / P voltage over shoot protection. Beyond 210 V-255 V. per phase. [Make of Machine: As per approved vendor lists of PHED.] ( N.B : Manufacturers warrenty & test certificate have to be submitted at the time ofdelivery.) 2 a) 20KVA Voltage Stabilizer 3 b) 30KVA Voltage Stabilizer 4 Installation of above suppliedStabilizer by supplying all required materials with socket, gland, fittings etc. by skilled technical personnel as per requirement with making double eathing arrangement of the stabilizer in complaince with IE rules by G.I pipe electrode of 50mm dia 3mtr. long of 2 nos quantity by suitable GIstrip / bar with all other accessories reuired to complete the work as per direction of EIC with commissioning earthing building. 5 Add: GST @ 18% on sum of Item No: 1.00 to 2.00 6 Add: Cess @1% on sum of Item No. 1.00 to 3.00

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