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Tender For supply of magnetic oil gauge for 1600 dia aircell type conservator with float arm and lola + hola to drg tr24041 o rev-5 page 1 to 3, to style-js9006284184.
Tender For corrigendum : supply and fixing of new aircell of the main conservator oil tank, bucholz relay, mog and breather of generator transformer of unit no. 1 and 2 of ph-i and hydel generator transformer, sgtps, mppgcl, birsinghpur.
Tender For corrigendum : supply of spares for telk make 250mva auto and 31.5 mva stationtransformer at ntpc ramagundam - surge relay,telk,xfmr, press relief device,telk,xfmr, press relief device,telk,xfmr, aircell,telk,3ph,250mva,400/220/33kv
Tender For providing of repair, maintenance, and installation of plant/ systems/equipments (version 2) - supply and replacement recharging of defective faulty aircell magnetic oil gage at various 132 kv substation under etd iii prayagraj; substation, switchyard; as per boq
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 tender for the work of replacement of faulty mog, air-cells of transformer’s & ict’s at various 220/132/110kv s/stns., under ehv o&m dn., karad.
Tender For enquiry for replacement of unhealthy aircell and repair of conservator support structure of power transformer at various substation, under ehv o&m division ratnagiri