when a cunductor is being disconnected from live cct, still it showing charged, if its checked by line tester?
WHY CFL can't made in shape of bulb.5 6393
why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?3 3815
wat is the role of reactive power in power generation?why we have maintain it.3 8055
wat is the importance of reactive power in power generation.....if it is zero means wat will happen to system........22 31972
what is difference between differential protection and distance protection and how we calculate the sloop?5 37880
what is slip resistance? how much its value in 110 kw motor? why voltage is varied in vvvf drive ?1 3274
What type of protective system we uses in L.V. distribution panels?6 5980
Why P.f. of the system decreases when it is connectect across induction motor? & how to maintain the p.f. of system to unity.?6 6934
what is green house effect?4 3948
what happens when ac supply is given to D.C motor.17 24042
WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)
How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?
what is earthing.how we make it,describe briefly.
Differentiate between real and apparent power?
For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?
Explain the method to keep noises low in a control system?
How you calculate the repturing capacity of a HRC fuse
Define unilateral circuit?
How Diesel Generator start ?
What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?
How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540
Can any body tell me the different types of LT cables & their application.
what is rocking arrangement in arc heating
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.
how unidirectional torque is produced in DC motor?