Tender For distribution transformer of rating 250 kva, 11kv/415v-240v, 3-phase, 50hz, outdoor type, plinth mounted, the type of tap changer: off-load tap changer for variation of hv voltage from +5% to -10% in steps of 2.5%, energy efficiency level 3 or better, oil immersed, non-sealed type (transformer tank body and cover are bolted), copper wound, primary winding in delta and secondary winding in star (vector symbol- dyn11), onan cooled transformer, conforming to is 1180 (part 1):2014 with amendment nos. 1,2,3,4 or latest, and supplied with all standard fittings mentioned in clause 20.1 of is 1180 (part 1) latest withcondition that drain-cum-sampling valve will be applicable for all capacity of transformers. oiltemperatureindicator & winding temperatureindicators will be provided as per clause 20.2 f) of is 1180 (part 1). terminal arrangement: the transformers shall be fitted on high voltage and low voltage sides with outdoor type bushings of appropriate voltage and current ratings. the high voltage bushings (3 nos.) shall conform to is/iec 60137. the low voltage bushings (4 nos.) shall conform to is 7421. suitable cable-end box along with cable entry hole glands is to be provided at l.t. side. following has to be submitted by supplier along with supply of material: (i) type test report of transformer having same rating, make (& model if any) and design from nabl accredited lab as per is: 1180 (part 1) latest. (ii) routine test certificates as per is: 1180 (part 1) latest. (iii) special test certificates as per clause 21.4 sl. no. (a), (c), (d) & (e) of is: 1180 (part 1) latest. detailed specification attached as annexure a. [ warranty period: 30 months after the date of delivery ]]
Tender For supply of zero degree normal probe dc 4 mhz 18/20 mm dia, suitable for paras make digital ultrasonic rail tester, 9 channel (b scan) [ warranty period: 12 months after the date of delivery ] ]
Tender For corrigendum : supply of normal probe 20 mm diameter, 2.5 mhz. suitable for modsonic portable digital ultrasonic flaw detector machine. [ warranty period: 30 months after the date of delivery ] ]
Tender For corrigendum : supply of low angle perspex wedge attachment of 17.5 degree for 20mm dia. normal single crystal probe suitable for modsonic portable digital ultrasonic flaw detector machine. [ warranty period: 30 months after the date of delivery ] ]
Tender For supply of normal probe 20 mm diameter, 2.5 mhz. suitable for modsonic portable digital ultrasonic flaw detector machine. [ warranty period: 30 months after the date of delivery ] ]
Tender For supply of low angle perspex wedge attachment of 17.5 degree for 20mm dia. normal single crystal probe suitable for modsonic portable digital ultrasonic flaw detector machine. [ warranty period: 30 months after the date of delivery ] ]
Tender For corrigendum : supply of winding temperatureindicator with 4 switches 12 meters capillary length with potentiometer , oiltemperatureindicator with switches 12 meters capillary length with potentiometer , remote winding temperatureindicator with 4 sets of contacts , perpex container for breather , propex container for breather 15 mva , bucholze relay , buchholz relay for main conservator for , buchholz relay for service transformer , pressure relief valve , pressure relief device with 2 no contact , magnetic oil gauge , 50 nb manual butterfly valve
Tender For supply of thermometer sensor (oiltemperatureindicator) ,make bhel or jumo make ( part no 608520/2380) suitable for 1578 kva transformer fitted in 3 phase bhel ac emu rake. [ warranty period: 30 months after the date of delivery ] ]