Tender For bid to ras corrigendum : supply of single phase induction motor , three phase squirrel cage induction motor , three phase squirrel cage induction motor , slip ring induction motor , three phase sq. cage induction motor , three phase alternator , stepper motor , ac servo motor , dc servo motor , single phase transformer , three phase transformer , current transformer , potential transformer , dc motor series , dc motor shunt , dc motor with provision of assembling and dismantling practice , variac , load bank , inductive load bank , capacitive load bank , clamp on meter , dol starter , star delta starter manual , automatic star delta starter , three phase sq cage induction motor , ceiling fan , table fan , choke , trainer board for assembling and dismantling of dol starter star delta starter different control circuits with all protection devices etc , voltage stabilizer step controller , ohms law kit , superposition theorem kit , thevenin theorem kit , maximum power transfer kit , scr kit , diac kit , power transistor and igbt , scr r and rc triggering circuits , ujt triggering techniques , class a b c turn off circuits , class d e f turn off circuits , single phase half controlled full wave rectifier using resistive load , fully controlled full wave rectifier , diac and triac phase control circuit , simulation software , microprocessor kit , verification of truth table for logic gates experimental board , microcontroller , full adder , flip flops , asynchronous counter , digital to analog converter experimental board , half adder , semiconductor diode , half wave rectifier , transistor , full wave rectifier , rc phase shift oscillator , clipping and clamping circuit , fet , zener diode , cro , discrete component kit , function generator , multipurpose probes , rc coupled amplifier , baising circuit , potential divider baising circuit , emitter follower circuit , hartley oscillator ) /bid number : gem/2025/b/6895318 * /dated: 19-11-2025 & & / bid document 1 / 52
Tender For 25 kv earthing/dischargerod assembly for high rise ohe with working voltage 25 kv ac traction with top clamp (suitable for 36 to 50 mm bus bar and also suitable for 10 to 20 mm dia. conductor) . pole made of cast resin or resin-bonded glass fibre, coated with three coats of poly- urethane, the discharge /earthing pole assembly shall have an overall length of not less than 7.5 meters in five equal sections. single core flexible multi strand annealed copper cable should have double insulation, a cross section of 40 sq mm of size 248/0.45 mm and 14 meter long cable (specification is: 1554 (pt. i)- 1988 and is 2071 (pt. 1 and iii). with earthing double clamp drg. no. eti/ohe/sk/482 or latest (each dischargerod is to be supplied with 02 nos. earting clamps), insulated tee junction- insulated tee junction drg no. eti/ohe/sk/481 and re/33/p/530 or latest (the cable should have an insulated tee junction and the tee clamp should be of brass covered in clamp casing of ebonite material). and whole assembly to be supplied in rugged canvas bag and all shall be as per rdso specification no. eti/ohe/51 (9/87) with latest a and c slip no. 1 (10/92) or latest , and additional part required with each dischargerod to be supply. (1) 01 nos. insulated tee junction. (2) 01 nos. top clamp made of copper suitable for 36 to 50 mm bus bar and also suitable 10 -20 mm dia conductor, (3) 01 nos. spare earthing clamp and. (4) special instruction- 1. dischargerod cable lugs should be made of copper. 2. the cable should have double insulation, a cross- section of 40 sq mm, and 248/0.45 mm strands. 3. the dischargerod should be strong enough to prevent swaying or breaking during maximum extension. every nut and bolt used in the dischargerod must include a washer and spring washer to ensure secure fastening. 5. after the award of the p.o., the firm must ensure approval of one sample of the dischargerod from the consignee before rites inspection. 6. the length of cable from the earthing clamp to top clamp shall not be less than 12.5 mtr. in the cable an insulated tee junction shall be provided at a distance of about 3.5 mtr from the earthing clamp. from this insulated tee junction another piece of cable not less than 1.50 m long shall be provided at the end of which other earthing clamp shall be provided. 7. the galvanized steel tube (threaded) used for coupling of pieces of dischargerod should be at least 20 cm or more as required to prevent swaying of pole assembly during erection at site. also at every 5 cm apart two nos steel rivet is required to be provide on galvanized steel tube ( for preventing the galvanized steel tube from coming out from each dischargerod pole end). i.e. about 08 nos. or more steel rivet as required per galvanized steel tube is to be provided for proper fastening of galvanized steel tube inside the each pole of dischargerod. (warranty period- 30 months after the date of delivery). [ warranty period: 30 months after the date of delivery ]
Tender For supply of equipment for the electrical machine laboratory - ii with consumables items and working table - coupled dc motor & ac generator set up with working table & lab manual, induction motor set up with working table & lab manual, universal motor setup with working table& lab manual, permanentmagnet synchronous motor setup with working table& lab manual, synchronous motor setup with working table& lab manual, bldc motor spring balance load setup with working table & lab manual, switch reluctance motor with working table & lab manual, single phase induction motor with working table & lab manual., b-h curve apparatus & dso with lab manual, am-meter(analog), ac true rms am-meter(digital), volt-meter(analog), ac voltmeter(digital), dc am-meter(digital), wattmeter upf, clamp meter, digital insulation tester(megger), digital tachometer, sliding rheostat,, electrical resistive load, inductive load for 1ф & 3ф supply, capacitive load bank for 1ф/3 ф, two winding transformer with tapings, six winding transformer with tapings, auto transformer, spdt toggle switch, mcb, extension board, dc starter each starter shall be mounted on a goodquality plywood board, and the starter terminals shall be internally connected to bti-30 banana terminals. labels indicating the point names (l, f, a, etc.) shall also be provided., contactor, push button switch, over load relay(olr), induction motor, power capacitor, electronic synchro scope, digital frequency meter, connecting wire, electrical rubber ma, rework station, pcb printer
Tender For supply of 25 kv earthing/dischargerod assembly for high rise ohe with working voltage 25 kv ac traction in 4 equal sections (overall length should not be less than 6.7 meter) of fibre glass stick with isi marked single core flexible multistrand annealed copper cable of size 248/0.45mm and 13 meter (11.5+1.5) mtr long, each dischargerod supplied with 02 nos. gi rail clamps & top clamp (brass) suitable for 10-20 mm dia. conductor and whole assembly to be supplied in canvas bag and all shall be as per rdso spec. no. eti/ohe/51 (9/87) with latest a&c slip no. 1 (10/92). make- pec, im or sdee [ warranty period: 30months after the date of delivery ]