Tender For corrigendum : supply of universal fail safe block interface for double line complete with all accessories as per rdso's specification no.irs:s-105/2012 (ver.0), each block section mainly comprises of1. dc-dc converters- 2 sets 2. ufsbi digital system- 2sets3. relay rack with due locking & sealing arrangement including relays qn1 = 38 nos., qna1 = 14 nos., ql1 = 4 nos, timer = 2 nos. 4. block panel complete with accessories as rdso drg. no. rdso/s/32017 or latest amendment- 02 nos. 5. block telephone with accessories. the block phone should work without any interruption after auto changeover necessary modem for quad and optical fiber cable working should be supplied along with auto-changeover arrangement (1 bock section=1set)(used in gaga)
Tender For corrigendum : supply of high availability single section digital axle counter system (hassdac) with dual track sensors (having in-built feature of trolley suppression) complete set as per rdso specification rdso/spn/177/2012 (ver.3) with latest amendment or specifications, complete set with redundancy consisting of dual hardware for each track section/block section like evaluator/ processors, vital relays, track side unit with detection point, complete assembly & fixing arrangement for each detection point, clamp deflectors for either side of each detection points, & dual display reset box with auto resetting facility for each track section/ block section.( 1 set means 1 block section)(used in gaga station)
Tender For supply of e4953144 for em relays for pgcil khavda and hindalco project : : -e4953144 em relays 01-sg4940197085-high speed tripping relay as per ann-a it-001 , 2-sg4950017004triple pole ct supervision relay with built-in ct shorting relay as per ann-a it-002 , 3-not to quote , 4not to quote , 5-not to quote
Tender For testing of 11 kv, 3.3 kv cts by primary injection set for relays effectiveness testing and also issuing test certificate for record at 37/38 substation and c-2 patch substation under abns colliery
Tender For corrigendum : procurement of under frequency relays dfdt relays for substations under system operation circle, kalamassery thiruvananthapuram, for implementation of pilm post lsland load managementfor kudamkulam neyveli islanding schemes