Design, fabrication, installation, testing and commissioning of LT control panel along with allied works at tube well Agriculture old.

Amount

Design, fabrication, installation, testing and commissioning of LT control panel along with allied works at tube well agriculture old for replacing the worn-out control panel. The panel should be dust and vermin proof fabricated out of 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 95 Amp- 2 no. air break contactors, 70 Amp 1 No. for star operation, timer- 1 no. 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. Job also includes making provision of automation of sub motor by way of providing and fitting of quartz timer- 1 no., delay timer- 1 no., toggle switch- 1 no. and contactor- 1 no. for automation. Proper thimbling of incoming and outgoing cable connections with thimbles of proper current carrying capacity duly crimped with crimpling tools and testing it on no load and full load with appropriate settings on protection device as per rating of the sub motor for its long and smooth life. Complete job including cost of material and labour charges. Job also includes dismantling of old valves and providing /Fitting of sluice valve 150 mm and reflux valve 150 mm on the delivery line after providing and fitting of new nuts and bolts, insertion of new rubber insertion sheet. Complete Job.

ROYAL ENGINEERING ENTERPRISES

Akhil Enterprises

NATIONAL ELECTRO-MECH COMPANY