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Tender For supply, fitment, installation, commissioning and testing of electrical variable voltage variable frequency ac drive rating-15kw/11kw, 3-phase 380-480 vac 50/60 hz, dc power supply: 510-680 vdc (cimr- ad4a0031fma).nominal input current (nd):24 amp. nominal input current (hd): 31 amp. output power rating (nd):15kw.output power rating (hd):11kw.frequency control range: 0-400hz.motor power-15kw/11kw.emc filter class c2 integrated. braking of standstill by dc injection. salient features: operation mode selection ,dc injection braking and short circuit braking ,speed search ,delay timer, pid control ,dwellfunction ,energy saving, acceleration and deceleration times ,slip compensation, torque compensation ,carrier frequency, frequency upper/lower limit torque control ,jump frequency. main control functions: torque control , drop control speed/torque control switch, feed forward control, zero servo control, momentary power,loss ride- thru and speed search, over torque detection, torque limit. speed control range : v/f control 1:40, open loop vector control 1:200, open loop vector control for pm 1:20, closed loop vector control for pm 1:1500, v/f control with pg 1:40 ,closed loop vector control 1:1500, advanced open loop vector control for pm 1:100. output overload tolerance: nd rating: 120% of rated output current for 60s, hd rating: 150% of rated output current for 60 s (derating may be required for repetitive loads).protection design: ip00 open-chassis, ul type 1 enclosure. ambient temperature (open-chassis): 10 to +50 degree celsius. standard compliance: ul508c iec/en61800 iec/en61800-5-1 ,two safe disable inputs and 1edm output according to iso/en13849-1 cat.3 pld iec/en61508 sil2. make: yaskawa /schnieder /abb/siemens/mitshubishi/angel or similar. [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]
Tender For supply of rc network complete (snubber circuit board complete) for compact silicon rectifier rsi blocks as per rdso specification no.elrs/spec/rsi/0030 & clw/es/r-33 & clw/es/b-14. (using capacitor of rating 0.47 mfd, 2000 v ac i.e. 16 no's of 0.47 mfd msr type capacitors with resistances fitted onone damping board for compact rsi). (item is reserved for clw approved sources only). [ warranty period: 30 months after the date of delivery ][quantity tolerance (+/-): 5 %age , item category : normal , total po value variation permitted: max 8 lacs ] ]
Tender For supply of digital insulation tester with 1) voltage variable up to 1 kv (that is 50v, 100v, 250v, 500v and 1000v), 2) insulation measuring range 0.01 m ohm to 2 g ohm 3) accuracy: +/- 5% 4)resolution : 0.01 mega ohm. 5) maximum operating temperature : 60 degree celsius 6) operating humidity (rh) - 90% at 40 degree centigrade 7) low resistances measurement: 0.01ohm to 99.9ohms 8) voltage measurement up 600v, ac/dc 9) live circuit detection : >25v with following accessories a)test leads of 1 m length with crocodile clip-2 nos. b). external mains adapter (230v ac/9v dc, 500ma (4.5va) isolated). c).fuse 500ma/440v,10ka and similar to rishab model.no. insu 20. makes: rishab, motwane, megger (or) fluke. note: to be procured from oem/authorized dealers with tender specific authorization certificate [ warranty period: 30 months after the date of delivery ] ]
Tender For supply, installation ,testing and commissioning of hoist slip ring induction motor for eot crane no 47 ct/38 slip ring induction motor details frame id - 250m, kw/hp - 35 kw, amps- 74, v - 415 v, rpm - 960, r.v - 270, r.a - 80, 3 ph, 50 hz with suitable coupling and both side shaft, note#-suitable mode of starting : stainless steel (ss) punch grid resistances boxes. make: siemens, marathon, bharatbijlee, abb india, crompton greaves power, and kirloskar electric. [ warranty period: 30 months after thedate of delivery ] ]
Tender For supply of wear plate, confirming to plasser part no. 62.08.1215. specification: "special designed bi-metal wear resistances plate developed by weld overlay process as per following details:- (1)basematerial:- the base material will be hardox-400 or equivalent material with following chemical composition. carbon=0.14-0.32%, chromium=0.30-1.40%, manganese=1.60% max, molybdenum=0.25- 0.60%, silicon= 0.70% max, nickel=0.25 -1.50%. (2)hardness of base material 370- 420 bhn. (3)weld deposit:- thickness of weld overlay deposit should be at least 5 mm. the weld overlay deposit will be of enrich complex carbide offering almost 35-45% primary carbides concentration to ensure enhanced lifeof minimum as specified at performance warranty, with alloy basis of c, cr, mn, v, b, si with hardness of 380- 430bhn. rdso drawing: tm/9315/1 rev-1. acceptable make/brand: - plasser or equivalent. [warranty period: 30 months after the date of delivery ]
Tender For corrigendum : procurement of nflp resistances for gdk-11 incline, tc fuse wires for area workshop and brass coupler female for gdkcm (no.2,2a and 5), rg-1 area
Tender For supply of wear plate confirming to plasser part no. 64.08.10229hs. rdso specification:specification: "special designed bi-metal wear resistances plate developed by weld overlay process as per following details:- (1)base material:- the base material will be hardox-400 or equivalent material with following chemical composition. carbon=0.14-0.32%, chromium=0.30-1.40%, manganese=1.60% max, molybdenum=0.25- 0.60%, silicon= 0.70% max, nickel=0.25 -1.50%. (2)hardness of base material 370- 420 bhn. (3)weld deposit:- thickness of weld overlay deposit should be at least 5 mm. the weld overlay deposit will be of enrich complex carbide offering almost 35-45% primary carbides concentration to ensure enhanced life of minimum as specified at performance warranty, with alloy basis of c, cr, mn, v, b, si with hardness of 380- 430bhn. acceptable make/brand: - plasser or equivalent. ]
Tender For corrigendum : supply of rc network complete (snubber circuit board complete) for compact silicon rectifier rsi blocks as per rdso specification no.elrs/spec/rsi/0030 & clw/es/r-33 & clw/es/b-14. (using capacitor of rating 0.47 mfd, 2000 v ac i.e. 16 no's of 0.47 mfd msr type capacitors with resistances fitted onone damping board for compact rsi). (item is reserved for clw approved sources only). [ warranty period: 30 months after the date of delivery ]