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Tender For supply of instrument meters devices for basic electric lab bid - rheostat , dc supply , single phase dimmerstat , three phase dimmerstat , digital wattmeter , digital dc ammeter , digital ac ammeter , digital ac voltmeter , digital dc voltmeter , regulated dc supply or rectifier , contactless techometer , basic logic gates , dc motor , induction motor , starter
Tender For tender for supply of breaker chaning handle for meditron make 11kv , 200a-100a/5-5a vcb switches , insulators complete set for unitized s/ s for meditron make 11kv , 200a100a/5-5a , vcb switches , support insulator for isolator mv5610 / for meditron make 11kv , 200a100a/5-5a , vcb switches , trip coil me4537 / for meditron make 11kv , 200a-100a/5-5a vcb switches. , closing coil me4538 / for meditron make 11kv , 200a-100a/5-5a vcb switches , auxilliary switch 6no +6nc for meditron make 11kv , 200a-100a/5-5a vcb switches , indicating lamp me4543 / for meditron make 11kv , 200a-100a/5-5a vcb switches , push button with contact block for meditron make 11kv , 200a-100a/5-5a vcb switches , trip neutral close switch for meditron make 11kv , 200a-100a/5-5a vcb switches , heavy duty epoxy resin cast potential tr for meditron make 11kv , 200a100a/5-5a vcb switches , single phase rectifier/ power pack 110 vo mer5340 / for meditron make 11kv , 200a-100a/5-5a vcb switches , ammeter selector switch mes4703 / for meditron make 11kv , 200a100a/5-5a vcb switches , voltmeter selector switch mes4704 / for meditron make 11kv , 200a100a/5-5a vcb switches , complete manually operated mechanism mev4222 for meditron make 11kv , 200a 100a/5-5a vcb switches
Tender For supply of indicating lamp part no me4543 or equivalent , ammeter part no mes4701 or equivalent , voltmeter part no mes4702 or equivalent , ammeter selector switch part no mes4703 or equivalent , voltmeter selector switch part no mes4704 or equivalent , copper busbars main horizontal for field switch part no mdn8789 or equivalent , copper busbars incoming for field switch part no mdn8790 or equivalent , copper busbars outgoing for field switch part no mdn8791 or equivalent , heavy duty epoxy resin cast potential transformer draw out type ratio 6point6 kv 110 v part no med2125 or equivalent , auxiliary switch 8 noplus8 nc part no me4542 or equivalent
Tender For providing and fitting of essential items and allied material for snow clearance operation at nathatop sanasar road - supply, testing and commissioning of 48v smps float cum boost automotive battery charger with moveable trolley stand for snow operation at nathatop - sanasar roadgeneral technical requirements for battery charger suitable for 48v vrla type battery1.) type -float & float cum boost charger for vrla type, full wave, full controlled type. 2. ) ratings- 15 a float cum boost for 48v, 150 ah vrla type battery 3. ) ac input- i) voltage 415 vac 10%ii) frequency 50hz 5% iii) phase 3 - phase 4.) d.c.output voltage settings -nominal float fc 48/54.5v (adj. by + 20%, - 5% bc 48/66.5v (adj. by + 2%, - 5%) 5.) output current limit 15a 15a 6. ) power conversion ac to dc by means of three phase full wave, half controlled bridge rectifier consisting of thyristors and diodes. 7.) voltage regulation at bridge output. + 1% of set value for + 10% input voltage variations, 0-100% load variation. 8. ripple voltage less than 3% rms without battery connected. 9. efficiency more than 80% at full load 10. protections (a) input side ac input mccb & elbs with input on/off switch and fuses, contactor (b) output side dc output mccb with output on/off switch and fuses. (c) protection current limit protection, soft start feature, surge suppressor. fast semiconductor fuses for rectifier bridge. (d) control circuit fuses (e) capacitor circuit rectifier hrc fuses. (f) over-voltage cut-back (g) charger over load / short circuit (h) blocking diode 11. controls and switches followings controls and switches are provided in the system 1 ac input source mccbs with interlocking 2 dc output mccb 3 auto/manual float/boost mode selector switch. 4 float and boost voltage variable potentiometers. 5 manual voltage adjustment potentiometer 6 test push button 7 reset push button 8 battery current adjustment potentiometers 9 heater s power supply switch 12. features the following features are provided in the systems: 10 soft start on dc side 11 class-f insulation for all magnetic 12 automatic voltage regulation. 13 automatic changeover from float to boost and vice versa based on current, drawn by battery. 14 filter circuit to eliminate ripple. 15 charger current limit 16 separate battery path current limit. 17 built-in auto phase reversal of operation. 13. meters f.c. b.c. (i)input voltmeter (i) common (ii) input ammeter (ii) input ammeter (iii) output voltmeter (iii) output voltmeter (iv) output ammeter (iv) output ammeter. battery volt meter battery ammeter earth leakage ammeter 14. indications phase on lamps (ii) output on lamp a)phase on lamps (ii) output on lamp. (iii) charger on float led (iv)charger on boost led. 15. annunciation with audiovisual alarms. (i) ac input mains failure (ii) input phase failure (iii) ac under voltage iv) input phase failure v) rectifier fuse failure vi) output fuse failure vii) filter fuse failure viii) dc under voltage ix) dc over voltage x) charger trip xi) capacitor fuse fail xii) output mccb tripped xiii) charger over load xiv) earth leakage xv) dc earth fault xvi) alarm supply fuse failure xvii)battery low condition. v) rectifier fuse failure vi) output fuse failure vii) filter fuse failure viii) dc under voltage ix) dc over voltage x) charger trip xi) capacitor fuse fail xii) output mccb tripped. note : all the alarms shall be provided through electronic display cards. audio alarm through buzzer, visual indication through 10 mm leds & alarm ackn. / reset and led provision is through push buttons. 16. operating ambient temperature surrounding the panel 00 to 500 c 17. surrounding the panel relative humidity. 0-95% non-condensing 18. panel (i) protective grade (ii) cooling (iii)paint ip 42 natural air-cooled smoke grey of iss-692 shade a) average winding temperature rise over ambient temperature b) insulation class c) insulation breakdown voltage. as per relevant iss. f 3 kv for 1 min withstand. 19. cables 1100 v
Tender For auction sale of scrap skeleton,scrap 3phase energy meter static (electronic) e-waste,scrap 3 phase static e-tv energy meter (electronic) e-waste,scrap iron tubular / ladder pole,scrap iron,scrap gos,scrap 33/11kv ug cable,scrap lt/ht metering box, distribution box etc,scrap iron rail pole / i beam pole
Tender For auction sale of kwh meter scrap,meter plastic box scrap,empty wooden drumn scrap,tube for jeep/car,11 kv ct damaged,11 kv ct old & used,11 kv pt damaged
Tender For auction sale of all alluminium/other al. scrap,aluminium t/fs. coil (unburnt) scrap,insulated conductor scrap,brass scrap,kwh meter scrap mech /junk scrap,a. kwh elect. meter without plastic box (e-waste),b. kwh elect. meter with plastic box (e-waste),c. meter plastic box scrap (plastic scrap),electronic meter scrap,empty wooden drum scrap,bobbin plastic scrap