Irrigation And Flood Control Department Tender

Manufacturing, Supplying, Installing, commissioning and testing of 100 KVA Capacity Copper wound voltage stabilizer at site. The stabilizer shall be manually operated, oil cooled suitable for working on 3 phases 50+ 3% HZ AC voltage. The core shall be contained in a rectangular container made out of 2mm thick Mild Steel plate. The container has to be painted in two coats of steel primer both inside and outside and with two coats of super enamel paint of grey shade outside the container. The box shall be provided with suitable cooling pipes/fins to dissipate the heat generated. Lifting hooks of proper size for lifting stabilizer shall be provided on the top of the tank. The container of the stabilizer shall be mounted on wheels for easy shifting/positioning as and when required. Copper Strips of suitable size shall be used for winding and fibre glass insulating material shall be used for insulating of copper strip. The core of the stabilizer shall be fabricated out of first class silicon 92 grade pota sheets cut to the size and then tightened securely. The stabilizer shall have suitable insulated lugs of appropriate size of cable connection. The indicating glass of the transformer oil shall be provided on the stabilizer body. Specifications. Voltage Range = Input = 180-440 volts Output = 400/440 volts Tape Changer = Manually operated balance type changer of 8 tapings with tape position Indicator. Tape No: - 1 =Step down by not more than 50 volts. Tape No: - 2 = line voltage. Tape No: - 3-8 =These tapes shall be used to increase voltage in the range of 180- 440 volts to 400-440 volts The stabilizer shall be provided with a free standing type control panel made out of sheet metal dust and vermin proof internally wired having following accessories. a). Two number voltmeter 100 mm square Digital type 0-500 volts, of, one each on incoming and outgoing circuits. The voltmeter is with fuse and selector switch for 3 phase. b). A set of indicating lamps for 3 phase complete with fusing both in primary and secondary side of the transformer. c). Red and green lamps for OFF/On display. The stabilizer shall be filled with fresh transformer oil up to the required level. All the accessories and meters shall be of reputed make and to confirm relevant ISI standards. The voltage stabilizer is to be tested on full load for maximum hours at site. The job includes providing and fitting of 70 mm2 XLPE unarmoured 15 mtrs copper cable for input and output of the above voltage stabilizer to complete the circuit and operation of the same at site. The voltage stabilizer shall be provided with manufactures test certificate.

Providing, Installation, Testing and Commissioning of oil immersed naturally air cooled (TYPE ONAN) , Outdoor type, three phase, 50 Hz , 11KV/440V-250V step down distribution transformer Aluminum Wound of 250 KVA Level-2 capacity confirming to IS-1180 at Lift Irrigation Scheme Lelhar Shott, The transformer shall be provided with all necessary accessories like Breather, Horn gap, Lifting Lug, And suitable name plate duly embossed/Engraved, tap changer. The H.T transformer shall be manufactured /supplied incompliance with latest relevant IEC/IEEE/IS Standards. The technical specifications of the H. T. Transformer shall be as under. Standard :IS-1180 (Part-1) : 2014 Type : Outdoor, Oil Cooled, 3 Phase & Neutral Energy Efficiency Level : 2 KVA Rating : 250 KVA Rated Voltage H.V. : 11000 Volts L.V : 415 +-10%Volt. Frequency : 50 HZ Type of cooling : Naturally air cooled Primary Winding Conductor : DPC Aluminum. Secondary Winding Conductor : DPC Aluminum. The HT transformer shall be of reputed make as per relevant standards.The job includes providing and fitting of transformer belt made of suitable Angle Iron including providing and fitting of Clamps,nuts bolts , other necessary arrangements and improvement to the existing Transformer bed by providing and fitting of ISMC 100 of suitable length with proper arrangement as transformer bed.