WBPHED/EE/MLMD/NIeT_33 of 2024-2025

Amount

Inspection & Testing charges for Fault Identification of 800 KVA HT AVR.

Transportation charges for carrying the complete AVR Unit (Buck-Boost, Step Up & Down Unit and Regulator unit) from site to the workshop at kolkata including loading and unloading charges.

BUCK BOOST & STEP UP DOWN UNIT

Labour charges for dismantling of Core & coil assembly from Buck Boost & Step Up Down unit.

Supply delivery of copper wire for Insulation of 2 nos. burnt phases “Y” & “B” of Step down unit (LT coils), approx copper requirement is 80 Kgs.

Supply delivery of copper wire for Insulation of 1 no. burnt phases “Y” of Buck Boost unit (HT & LT both), approx copper requirement 55 Kgs.

Supply & replacement of Breather with 1 kg. silica gel.

Supply and top up of New transformer oil for Buck Boost and Step Down tank for final testing (IR value, magnetic balance, ratio, magnetizing current, core loss, copper loss, high voltage test, double voltage double frequency & OTI, WTI, Buchholz relay operational test)

Rectififcation of whole Buck Boost Step up/down assembly by inserting newly wooven coils in the tank after cleaning necessary jointing replacemant of Gasket & Seal assambly making inter connetion with bushing all complete by deputing Service Engineer having exprience in Automatic Voltage regulator unit(HT).

Charges for Final Testing (IR value, magnetic balance, ratio, magnetizing current, core loss, copper loss, high voltage test, double voltage double frequency & OTI, WTI, Buchholz relay operational test)

REGULATOR UNIT

Labour charges for dismantling of Core & coil assembly from Regulator unit.

Supply delivery of copper wire for Insulation of 3 nos. burnt coils out of total 6 nos. coils of Regulator unit (2 coils of Regulator – 1 & 1 coil of Regulator – 2), approx copper involvement 294 kgs.

Supply & replacement of Regulator press board cylinder, bakelite strips, cotton tape & all regulator assembly related material.

Supply and top up of New transformer oil for Buck Boost and Step Down tank for final testing (IR value, magnetic balance, ratio, magnetizing current, core loss, copper loss, high voltage test, double voltage double frequency & OTI, WTI, Buchholz relay operational test)

Supply & replacement of PCB relay card.

Supply and delivery of 50 sq. mm. X S/C Cu. Flex. Cable.

Supply and delivery of Cu. Lugs for 50 sq. mm. S/C cable.

Supply and delivery of Empire tape.

Supply & replacement of voltage controller potentiometer.

Supply & replacement of Aux. Contactor.

Supply & replacement of Limit Switch.

Supply & replacement of Carbon Roller.

Supply & replacement of Tag & Tail assy.

Supply & replacement of 630 Amp. Porcelain bushing, 1100 V

Supply & replacement of Nylon Sprocket.

Supply & replacement of M.S. Sprocket

Supply & replacement of Heavy duty Chain

Supply & replacement of Breather with 1 kg. silica gel

Supply & replacement of Clutch Declutch handle of Motor

Rectififcation of whole regulator unit assembly by inserting newly wooven coils in the tank after cleaning necessary jointing replacemant of Gasket & Seal assambly making inter connetion with bushing all complete by deputing Service Engineer having exprience in Automatic Voltage regulator unit(HT).

Transportation charges for carrying the complete AVR Unit (Buck-Boost, Step Up & Down Unit and Regulator unit) from the workshop at kolkata to working site including loading and unloading charges.

Re-commissioning of HT AVR at site after completion of necessary testing at site & power charging.

Charges for Final Testing (IR value, magnetic balance, ratio, magnetizing current, core loss, copper loss, high voltage test, double voltage double frequency & OTI operational test)

Cost of Scrap (Copper) will be deducted during preparation of Bill @ Rs. 750.00/ kg

Add GST @ 18%

Add Cess @ 1%

M/S. Sajahan Chowdhury (BID ID -6006553)

HANNAN BUILDERS PRIVATE LIMITED (BID ID -5977160)

NABAUDYAG ELECTRICAL ENGINEERING CO OP. SOC. LTD. (BID ID -6004670)