Public Health Engineering Department Tender

Providing and fitting of electro mechanical components alongwith allied works at pumping station Majalta the job involves replacement of damaged 80mm dia CS sluice valve and 80mm dia NRV by cutting of pipes by mechanical /gas cutter then fitting of new 80 mm dia CS sluice valve - 1 no. and 80 mm dia CS NRV -1 no. including fitment of flanges, nuts, bolts, gaskets complete with welding work. Job also includes providing and fitting of 250 ampere MCCB of 50 KA breaking strength along with laying of 150 mm^2 aluminium cable 3.5 core to MCCB approximately 50 meters in length by way of extraction of damaged MCCB and aluminium cable with reputed make on board and then testing on full load. Complete job includes cost of material ,transportation charges, manual charges, skilled and unskilled labour charges ,hire charges of tools and tackles etc.(complete job)

Design, fabrication, carriage, installation, testing and commissioning of 110 ampere star delta LT control panel at pumping station Majalta. The job involves fabrication of starter with Main, delta and star power contractors 01 no. each with main and delta of 110 ampere rating and star of 70 ampere rating and compatible with the rating of the prime mover, of reputed make, conforming to ISI standard and specifications. The system should be provided with solid state fault analyzer cum controller unit or equivalent of standard and reputed make. The complete system should be enclosed in MS steel enclosure box of suitable dimensions. The enclosure should be finished with powder coated painting from inside as well as from outer surface of approved colour. Providing / laying of copper conductors of proper rating along with insulation material as per site requirement. The enclosure should be front shutter mounted with key locking system having glass window, digital electronic voltmeter, ampere meter along with the required current transformer and selector switches. The internal wiring should be done with flexible PVC LT cable with proper thimbling at each end. The system should trip the motor on power failure and on appearance of any electrical fault mentioned below which may otherwise damage the motor field coils thus providing protection to the motor. The system / star delta auto starter should not fall into delta if it does not fall into star mode first and should remain de-energised to avoid damage to the motor / machinery. The system / star delta auto starter should trip off if it does not fall into delta & remains in star mode for more than specified time(10-20 seconds).The system shall provide protection against :- Low voltage (below 350V), High voltage (above 450 V), Single phasing, Reverse phasing, Un-balanced phasing/dry running, overloading. In addition, the system shall have following audio and visual features for a quick and accurate diagnosis of the appeared fault/status for a speedy rectification of the system for fault analysis of system, with a blinking indicators, an audio warning system/siren which activates only on starter failure to trip the motor on appearance of any electrical fault mentioned above, to warn the operator to switch off the motor manually 3 LED, contractor ‘COIL OK’, indicators, one for each of the contractors/coils. LED star and delta indicators to access the star to delta timing. A tamper proof starting system to avoid manipulations by the motor operator to keep the system in a permanently ON position. Testing of panel after making all incoming and outgoing connections on no load and then on full load. Complete. job includes cost of material and equipment, labour charges, manual carriage and transportation charges, hire charges of tools & tackles, etc.