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Tender For supply of feeders- 1 & 2 and bus coupler power contactors, 3 pole, 1000v ac, 50hz, suitable for 500 k va, 750v ac on load switching under ac-6a category at a temperature of 70 degrees c & coil voltage of 11 0v dc + 25% - 30%, with surge suppressor, with 2 no + 2nc auxiliary contact. acceptable make as per an nexure-d: bill of material of roso specification no. rdso/pe/spec/tl/0195-2019 (rev.-0) abb- af1250-30- 11, l&t - mvo 820, siemens- 3tf69338df4z a02+3tx75723h & conventional installed with a series resist or with reversing contactor 3tc4417-4a dc economy circuit auxiliary contacts 3 no + 3 nc main circuit. oe m or their authorized dealers & suppliers with tender-specific authorization letters from oem only to quote with documentary evidence. [ warranty period: 30 months after the date of delivery ]
Tender For corrigendum : tender invited for (1) design, supply, installation, retrofitting, testing and commissioning of 220kv bus bar panel/scheme, 220kv bus coupler scheme and 400/220/33kv ict and station transformer-1 to 4 relay scheme at wanakbori tps. & (2) design, supply, installation, testing and commissioning of numerical bus bar protection scheme for 132kv at dhuvaran gbps.
Tender For replacement of age old and oil leak problematic 20nos current transformers pertaining to 220kv narasaraopet feeder (r-ph & y-ph), 220kv vtps feeder, 220kv markapur feeder, 220kv ongole-i feeder, 220kv podili (n)-2 feeder & 220kv bus coupler at 220kv ss podili under psdf phase-ii scheme.
Tender For construction of 01 no. 33 k.v. feeder bay and 01 no. 33 kv bus coupler b ay and 02 nos. 33 kv bus sectionalizer at 220 k.v. s/s sec. 20, noida, under etd-i, noida
Tender For replacement of various items at various 220kv and 132kv substations under etd budaun - a) replacement of old & defective/damaged equipments 132kv & 33kv control panel, relay panel, transfer bus coupler panel/dcdb/110volt ac charger/33kv vcb at various substations under etd, budaun. 1) dismantalling of old/obselete/damaged 132kv control panel/relay panel/transfer bus coupler panel/33kv triple feeder panel/dcdb/110volt ac charger/33kv vcb by opening of all associated control cable and earthing and shifting of above from control room to store., 2) erection of new 132kv control panel/relay panel/transfer bus coupler panel/33kv triple feeder panel/dcdb/110volt ac charger/33kv vcb alongwith foundation modification if required with earthing and cable termination and shifting of above from store to site and other associated works., b ) overhauling of 33kv vcb (mechanical/electrical) 1) mechanical overhauling of 33kv vcb that includes checking of opening mechanism, closing mechanism, spring charge mechanism, changing of pole assembly or vaccum interrupter etc. (01 job per breaker)., 2) electrical overhauling of 33kv vcb that includes checking of tripping circuit, closing circuit, indication, trip cicruit supervision etc. (01 job per breaker)., c ) replacement of old rusted 132kv pt/ct junction box including removal of old junction box after opening all cable termination and installation of new junction box alongwith cable termination and cable laying work (if applicable) (01 job/01juction box), d) replacement of old rusted 33kv pt/ct junction box including removal of old junction box after opening all cable termination and installation of new junction box alongwith cable termination and cable laying work (if applicable) (01 job/01juction box)