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Tender For distribution transformer of rating 500 kva, 11kv/415v-240v, 3-phase, 50hz, outdoor type, plinth mounted, the type of tap changer for variation of hv voltage from +5% to -15% in steps of 2.5%, energy efficiency level 3 or better, oil immersed, non-sealed type (transformertank body and cover are bolted), copper wound, primary winding in delta and secondary winding in star (vector symbol- dyn11), onan cooled transformer, confirming to is 1180 (part 1): 2014with 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 with condition that drain-cum-sampling valve will be applicable for all capacity of transformers. oil temperature indicator & winding temperature indicators will be provided as per clause 20.2 of is 1180 (part 1). terminal agreement: the transformers shall be fitted on high voltage and low voltage sides with outdoor type bushings appropriate voltage and current ratings. the high voltage bushings (3 nos.) shall confirm to is/iec 60137. the low voltage bushings (4 nos.) shall confirm to is 7421. suitable cable-end box along with cable entry hole glands is to beprovided 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. [ warranty period: 30 months after the date of delivery ]
Tender For multi-function meter, ct/pt site programmable for input voltage measurement 50-550v ac, l-l, ct-1/5a, aux. supply 24/110v dc, led/lcd digital display, 96 sq. cm, class-1.0, for measuring parameter v, a, f, pf, kw, kva, kvr, kwh, kvah, kva, rh, run hours on hours, phase angle interrupts thd events (high, low) for switch board cabinet for hog compliant lslrd coaches as per rdso specification no. rdso/pe/spec/d/tl/0195-2019 (rev.0). makes as per bom special repair no.13 of rdso specification [ warranty period: 30 months after the date of delivery ]
Tender For corrigendum : providing of repair, maintenance, and installation of plant/ systems/equipments (version 2) - work pertaining to the replacement of damaged ct/pt combined outdoor units—and the installation of new ct/pt combined outdoor units—located on the feeders of various 33/11 kv electrical substations, as well as at the premises of ht/industrial consumers, within the territorial limits of the electrical urban/distribution divisions of banda and atarra, under the jurisdiction of the electrical testing division, banda, for the o&m head of the year 2026-27.
Tender For corrigendum : repair/maint of 11/0.433 kv transformer, relys, ct/pt, caliberation of vcbs, upgradation of sub station and other connected works at ge dronachal