Tender For supply of following items for setting up measurement and instrumentation lab for 4 year b.tech in electrical engineering curriculum and application for university of calcutta. - experimental set-up for calibration of a wattmeter using dc potentiometer with following features/items:regulated power supply 2 volts, 100 ma to operate the potentiometer.calibrated electronic standard cell voltage 1.0186 volts.regulated power supply 0-5 volts/0.5 amps with milliammeter 0- 500ma for current coil of wattmeter.regulated high voltage power supply 0-250 dc volts with voltmeter 0-250 volts for pressure coil of wattmeter.a panel mounting wattmeter 0-125 watt is required to perform the experimentgalvanometer for null balance.a volt ratio box for measurement of higher voltage.complete circuit diagram with wattmeter connections to be provided on the front panel of the instrument.with standard accessories, experimental set-up for low resistance measurement using kelvin s double bridge with following features:range: 0.2 micro ohm to 11 ohms, with an accuracy of 0.05 %required accessories:spot reflecting galvanometer. dc source 10 a with one analog current meter. attachment of 1 meter length.brass clamp with terminals for zero setting. with standard accessories, experimental set up for unknown capacitance measurement using de-sauty s bridge with following specifications:source: sine wave signal of 1khz. the amplitude of ac switch indicating lamp is provided on the bakelite board. two sockets are to be provided for the output of ac signals.detector: for detecting small ac signals in the output, null detector is required as in-built with digital display.circuit diagram:the circuit layout on the board is to be provided out to facilitate convenient working. 4 or 5 mm socket required for making connection. features:r2 --- three decade resistance dials having value 10 1000, 10 100 and 10 10 ohmsr1 ---- single decade resistance dial having value 10 100 ohmsc1 ---- unknown capacitor.c2 ---- two fixed standard capacitors having value 0.01mfd 0.1mfd (loss free)with standard accessories, experimental set-up for calibration of a 1-phase watt-hour meter with following scopes: to adjust & calibrate a single-phase energy meter by direct loading method to adjust & calibrate a single-phase energy meter by comparing with a sub-standard meterspecifications: static energy meter single phase: under test (local) duly mounted, wired and terminated static energy meter single phase: sub-standard meter (isi mark) duly mounted, wired and terminated voltmeter: moving iron ac portable of class 1.0 accuracy and range 0 - 300 v ac ammeter: moving iron ac portable of class 1.0 accuracy and range 0 - 10 a ac wattmeter: dynamometer type ac single phase, multi-range with current coil 5 / 10 amp and potential coil 75 / 150 / 300 v ac variac: variable voltage transformer (portable table / floor mounting type with enclosure) input: 230v ac and output: 0 270v / 8 amp ac variable load: made up of 3 load resistors of 70 ohms / 700 w each duly mounted and connected / terminated to form different loads (35 to 210 ohms) as per external connections digital stop clock: portable with start / stop & reset operation set of necessary 4 mm spring loaded patch cords for interconnections detailed instruction manual supply to be connected: 230v, 1phase, 50 hz, ac mains, experimental set-up for calibration of a 3-phase watt hour meter with following specifications: to adjust & calibrate a three-phase energy meter by direct loading method to adjust & calibrate a three-phase energy meter by comparing with a sub-standard meterspecifications:static energy meter three phase: under test (local) duly mounted, wired and terminatedstatic energy meter three phase: sub-standard meter (isi mark) duly mounted, wired and terminatedvoltmeter: moving iron ac portable of class 1.0 accuracy and range 0 - 300 v acammeter: moving iron ac portable of class 1.0 accuracy and range 0 - 10 a acwattmeter:
Tender For supply of spares/miscellanious items for gis pahalgam for providing reliable power supply during sanjay 2025. - split inverter ac 1.5 ton 5 star hot and cold with avr and other accessories of standard make (for gis pahalgam), servo voltage stabilizer three phase oil cooled p-p 190-450 v : p-n:110-260 v ( with t-oil) , 15 kva (100 ltr. oil capacity), 36v 100ah float cum boast battery charger with full wave rectification for 220v single phase, 50hz ac input supply for (gis pahalgam), 33 kv single core indoor cable kit ( plug in tremination type and screened seperable connectors ) for 400 mmsq cable for gis compatible substaion (brand:- euromold, nexans, raychem etc), 33 kv single core outdoor type cable kit for 400 mmsq, 11 kv single core indoor cable kit ( plug in tremination type and screened seperable connectors ) for 630 mmsq cable for gis compatible substaion (brand:- euromold, nexans, raychem etc)for gis substaion panel mounted, 11 kv three core indoor cable kit ( plug in tremination type and screened seperable connectors ) for 400 mmsq cable for gis compatible substaion (brand:- euromold, nexans, raychem etc)for gis substaion panel mounted, 33 kv current transformer outgoing (33 kv, 1 , multi ratio multi core 600-300/1a, indoor type) (1 no. per ) for gis compatible 33/11kv station panel mounted, 33 kv current transformer incommer (33 kv, 1 , multi ratio multi core 900-600/1a, indoor) (1 no. per ) for gis compatible 33/11kv station panel mounted, 11 kv current transformer outgoing (11 kv, 1 , multi ratio multi core 200-400/1a, indoor) (1 no. per ) for gis compatible 33/11kv station panel mounted, 11 kv current transformer incommer (11 kv, 1 , multi ratio multi core 900-600/1a, indoor) (1 no. per ) for gis compatible 33/11kv station, 11 kv current transformer (11 kv, 1 , multi ratio multi core 600-300/5a, indoor) (1 no. per ) compatible to hartek panels at ais pahalgam, 33 kv current transformer for auxillary (33 kv, 1 , 30/1a, indoor) (1 no. per ) for gis compatible 33/11kv station panel mounted, potential transfromer 33kv/110v (1 , multi core indoor) (1 no. per ) for gis compatible station panel mounted, potential transfromer 11kv/110v (1 , multi core indoor) (1 no. per ) for gis compatible station panel mounted, over current/earth fault (3 o/c and 2 e/f relay abb type for gis compatible 33/11kv substation, providing and fixing 3 layer pp-r (poly propylene random copolymer) pipes conforming to is: 15801, uv stabilized and anti-microbial fusion welded, having thermal stability for hot and cold water supply including all pp-r plain and brass threaded polypropylene random fittings. this includes testing of joints complete as per direction of engineer-in?charge. internal work-exposed on wall with clamps at 1.00 meter spacing pn-16 pipe , 25mm od(sdr-7.4) for replacement of damaged pipiline. (for ais and gis )