Providing Fitting of Voltage Stabilizer 63 kVA and Electric Control Panel 20 HP 3 Phase Star Delta at Tubewell Dewangarh B2

Amount

Design, fabrication, installation, testing and commissioning of Electric Control Panel with built in fault analyzer suitable for running 20 H.P. Submersible Pumpset. The panel should be dust and vermin proof fabricated out of 14/16 SWG CR sheet and provision for fixing it on the wall or the ground with the help of anchoring bolts should be made. The Panel should be sturdy enough for vibration free operation and should be equipped with suitable locking / sealing arrangements. The structure should be provided suitable entry and exit holes for incoming and outgoing cables. The panel is to be given two coats of anti-rust primer and two coats of steel grey enamel paint. The panel should have equipped with following components / features: - 1. The panel should be fitted with 100 Amps MCCB and a set of RYB indicators at incoming side. 2. Star delta starter: - The panel should be fitted with 01 No. star delta starter comprising of 01 No. 40 Amps. contactor for main supply, 01 No. 40 Amps. contactor for delta supply and 01 No. Air break 40 Amps. contactor for star operation, 01 No. timer for changing over the supply of motor from star to delta, 02 No.s push buttons for start and stop operation of motor. 01 No. MCB 10 Amps. for the protection of internal control wiring. A neat and clean internal control wiring should be made with flexible, copper cables to complete the star delta circuit of outgoing supply. 3. Protection device: - The panel is fitted with protection devices like relay, CT/PT, timer, fault analyzer with capacity to protect motor by isolating the power supply of motor de-energizing the starter/ panel from electro-mechanical faults which may otherwise damage the motor windings like single phasing, under voltage, over voltage, unbalanced voltage, reverse phasing, over current / over load, unbalanced current / load, short circuiting. The panel shall also be provided with ammeter and voltmeter of appropriate capacity. All the equipments used i.e. contactors, relays, MCCB etc. used should be of standard make.

Providing, installation, testing and commissioning of 63 kVA copper wound, oil cooled, manually operated voltage stabilizer with input voltage range (160 V to 400 V) and output voltage range (400V ± 10%) and frequency 50 Hz ± 3% for irrigation Tubewell. The stabilizer should be mounted on unidirectional wheels. The stabilizer assembly should comprise of core made of silicon steel wound with copper coil conductor of appropriate quality confirming to BIS with di-electric oil of proper value for cooling stabilizer assembly. The job also includes P/F 01 No. changeover/by-pass switch of 100 Amps for by-passing the voltage regulation mechanism and to run the system on main incoming supply in case there is a problem in voltage stabilizer. The job also includes P/F of 01 No. 100 Amp M.C.C.B. on output side & other required fittings. The job also includes providing and laying of 16 mm sq. multi strand single core copper cable as per site requirement for making connection of Voltage Stabilizer to Electric Control Panel after thimbling the cable ends. The job includes cost of material, labour, carriage, tools and tackles.

JAIMA ELECTRICALS (BID ID -2476831)

BEE AAR ENTERPRISES (BID ID -2498619)

M/S V.N ENGG WORKS (BID ID -2478036)