Revival of defunct tube well at CPS Bantalab.

Amount

Providing of 2 nos. submersible pump set having specifications 10000 GPH x 100 Mtrs. Head. Job includes shifting of the new submersible pump sets from place of storing to workshop. Fabrication of and fitting of U – shaped tie rod / clamp which is to be fabricated out of MS flat and to be fitted with submersible pump by fabrication and fitting of bolts and nuts which are to be welded on both sides of the clamp. The job also includes fabrication of expander / reducer nipple for NRV of required size which is to be fabricated out of MS plate threaded at one end and flanged at the other end. Fitting of reducer / expander nipple to be fastened with column pipe at one end with flange joint and with the discharge outlet (NRV) of the submersible pump at the other end. Coupling of submersible pump-set and testing it in testing pit at workshop and shifting to site of work. One no. submersible pump set is to kept as standby and is to be shifted and safely unloaded at site. Installation, testing and commissioning of submersible pump set at Tube Well CPS Bantalab. Providing and fabrication of B class GI pipe 3” dia 10’ in length – 35 nos. column pipes after welding of heavy-duty flanges at both sides. A side cut is to be provided at each flange for passing of submersible cable and each flange is to be strengthened by welding of 4 no. 12 mm thick cleats. Shifting the pipes to site of work. Providing and fitting of 10 mm sq. submersible cable 400 Mtrs in length. Making of connections of submersible cable with motor leads and lowering of submersible pump set. Job also includes providing and laying of 3” dia. pipe from tube well delivery to the GSR (50 Ft approx.) by way of fabrication of bends, providing and fitting of sluice valve and check valve etc. Making of all connections with LT control panel and then testing the pump set. The job includes cost of submersible pump sets, lowering of submersible pump set, submersible cable, materials i.e. tie rod, expander, reducer, nipple, nuts, bolts, rubber sheets and labour charges. Complete Job. design, fabrication, installation, testing and commissioning of LT control panel with built in fault analyzer suitable for running 40 HP newly installed submersible pump set at Tube Well CPS Bantalab. 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 160 Amps MCCB and a set of RYB indicators at incoming side. 2. Star delta starter: - The panel should be fitted with starter comprising of 2 no. air break contractors, 1 No. 50 Amps contactor for main and 1 no. contactor 45 Amps. for delta supply and 1 No. Air break contractor 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, ROM of suitable rating having inbuilt display ON / OFF, control fuse, 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. Analyze, display and record no of operation and duration of motor running. 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. Testing: Providing and fitting of pvc copper cable of appropriate rating to be laid between voltage stabilizer and newly installed LT Control Panel after proper thimbling. Making of all the electrical connections and testing the panel on no load and then on full load conditions. Complete job including coat and carriage of materials and labour charges.

M.S J K HYDRAULIC ENGGG AND FABRICATOR WORKS

M/S K S ENGG WORKS