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in 132 kv substation ligtning arrestor(120 kv) connected to line. but line voltage comes to 132 kv, it operate or not???
4 16803voltage of a ckt is measured by volt meter having an input impedence camparable with the out put impedance of the ckt Eror caused is 1. Gross Error 2. Errors due to lloading effect
GATE,
2 4254when the control mechanism is present for an ammeter(1-10A) and 1A current is apllied what will be the reading of the meter?
GATE,
2 4611Relay setting for earth fault of reciprocating and centrifugal compressor motor feeder.Setting will be different or same?
1 4046The error in a single phase energy meter where pressure coil lags behind applied voltage by 88 degrees and pf is 1) upf 2).5lag
GATE,
1 4655Post New Electrical Engineering Questions
importance of reactive power management
hi frnds can any one help me ? plz send me placement paper of IOCL of Electrical streem .... plz send ....its urgent....
sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.
What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?
whatare the disadvantages occur,if the form factor of transmission will not be equal to 1.11
what is meant by IGBT how they differ from tyristor ?
Explain the working principle of Synchronous Generator and Assynchronous generator?
How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.
at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.
1) Explain why we don't link the two earthing system ht and mv on a pole mounted transformer sub-station.
What is FTA card? How it works?
Explain (in simple ) - root mean square. whats its role in electrical fundamandal.where its used
what is a pulse transformer? how rise time of pulse changes when ever the voltage changes?
Can RCD's used to protect the VVVF drive if not why.
2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........
