Supply, installation, testing and commissioning of transformer neutral grounding resistor (ngr) bank for replacement of existing ngrs installed in dmrc receiving sub stations network.

Supply, installation, testing and commissioning of neutral grounding resistors (ngrs) and isolation transformers at surface installations, cauvery asset.

Custom bid for services - providing testing commissioning and modification of 11 kv neutral grounding resistor with fail safe monitoring relay and other accessories at 33kv by 11kv saoner group of substation of saoner sub area nagpur area wcl

Provision of numerical control and relay panel (including relays) by replacement of overaged static control and relay panel at traction sub stations (tss) suitable for double traction power transformer over fzr division.

3 phase measuring and monitoring relay rated voltage looo v ac for net 1 net 2 as per rdso spcn. no. rdso/pe/spec/ac/0184-2015(rev.1)

Relay, ac immune, plug in type style qna1 dc neutral line 24v-dc, 12f/4b contacts, front and back contacts metal to carbon with plug board , retaining clip and connectors confirming to brs:931a,irs:s60, irs:s 34 & irs:23 (as applicable). the interlocking code for this unit shall be abdfh & abdgh respectively. spec: brs:s 931a,irs :s 60,irs:s 34 & irs :s23. spec:

13 point 8 forward slash 11 kv three phase cast resin dry type 6 point 3 mva unit tapoff transformer including all accessories as per technical specification,11 forward slash 0 point 415 kv three phase cast resin dry type 1 mva unit auxiliary transformer including all accessories as per technical specification,13 point 8 forward slash 0 point 45 kv cast resin three phase dry type 1 point 4 mva excitation transformer including all accessories as per technical specification,0 point 415 forward slash 0 point 125 kv cast resin three phase dry type 175 kva auxiliary transformer as per technical specification,13 point 8 forward slash 0 point 220 kv single phase cast resin dry type 258 point 50 kva neutral grounding transformer as per technical specification

Set of digital voltmeter & ammeter with led display suitable for lhb power car & lslrd voltmeter range 0-1000 v ac, 4 digit, 3line, 7 segment, parameter displayed ac line-line voltage, ac line-neutral voltage. ammeter range 0-600 a ac,aux supply 12-48v dc, 50hz, ct 1a/5a programmable, 4 digit, 3line, 7 segment confirming to spec no. rdso/pe/sec/tl/0195-2019 (rev-0) or rcf spec no.- edts-103 rev-d, am-7 or latest . make : socomec/ rishabh/siemens/ l&t / schneider or equivalent.

Ampere meter 4inch ratio 200 100 5 5a part no spl406,volt meter 3.3kv 100v part no spl106,ammeter selector switch part no srp136ma,voltmeter selector switch part no srp135vs,earth leakage relay 0.34 to 1.8a aux supply 110v cbct part no ekjrc172,wiring kit part no ek805888,epoxy resin cast ct double core 15va ratio 200 100 5 5a part no ct5300,epoxy resin cast potential transformer 3.3 kv 110v 3phase part no et08002,power pack unit 110v dc part no ek801025

Control transformer, 200va, 750/415v, type-ii, 50hz, single phase, h class insulation, dry type & air cooled, along with fuses complete, suitable for use in switch board cabinets of eog/hog lhb type ac coaches, powers cars, lhb garib rath ac coaches & smart lhb hog ac coaches, confirming to rdso specification no. rdso/pe/spec/ac/0203/-2020 (rev-0). make as per letter. no. el/7.1.108/sbc/main file dt: 16.04.2021 are bhasin packard, nacei, trolex, ramyaa, trinitron, kontact consortium, abrol o