Providing Fitting Replacement of Existing machinery with allied works at Tube Well G.S Pura A1

Amount

Providing, Lowering, Installation, Testing & Commissioning of Submersible Pump set at tube well mentioned above having capacity of (15,000 GPH) x (40m Head) coupled with 3 phase 380 volts+10%, 50 HZ+3% AC supply, copper wound squirrel cage induction submersible motor 20HP along with 2 No 100 mm flanged column pipes for further lowering the existing flanged column pipes assembly and other allied materials/equipments required during lowering of submersible pump set. The job also includes painting of existing column pipes with black paint of required quantity The job also includes P/L of 25 mtr-35 mm sq. 3.5 core aluminum cable armored cable for connection of control panel to electric transformer and 80 mtr-10 mm sq 3 core submersible cable for connection of panel to the submersible pump set. The job also includes providing and fitting of 200 Amp, main switch with HRC Fuse of reputed make. The job includes cost of material, labour, carriage, tools and tackles ( complete job in all respects) Electro-mechanical accessories used should be of genuine/reputed make conforming to latest IS code.

Design, fabrication, installation, testing and commissioning of Automatic control panel with built in fault analyzer suitable for running 20 HP submersible pump set. 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 1 No. 50 Amps contactor for main and 1 no. contactor 50 Amps. for delta supply and 1 No. Air break contactor 50 Amps. for star operation, 1 no. timer for changing over the supply of motor from star to delta, 2 Nos. push buttons for start and stop operation of motor. 1 No. MCB 2 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 phasing, under voltage, over voltage, unbalanced voltage, reverse phasing, over current / load, dry running, unbalanced current / load, earth leakage, short circuiting, locked motor, broken shaft. It should also display current of RYB phase and also line voltage of RY an YB phase and record trip counts and indicate trip status for over load, under load, single phase, unbalanced phase, earth fault, over voltage, under voltage, under voltage / reverse phasing respectively. i) Voltage related faults: - Single phasing, under voltage, over-voltage, unbalanced voltage. ii) Current Related faults: - Over current / load, dry running, unbalanced current / load, earth leakage, 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.

M/S V.N ENGG WORKS

AJAY ELECTRIC AND MECH WORKS