Procedure for conduting vector group test on power transformers.why it is conducted?6 17343
any one have papers of hpcl or sailof ELECTRICAL ENGG.1 2010
What is the role of link in neutral in a three phase ac system?10 21226
Electrical Diagram of Electric Arc Furance from transformer to Furances1 3741
how on load transformer is chnage the Tapping ?2 3970
diagram for soft stater ?3 5914
why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero7 23729
plz send me HPCL apptitude paper.. email@example.com
how we control automatic generator i'e with to supply (main supply and local generator) when the main supply was break to supply the local supply automatically to begin supplying power.I now this control circuit is the combination of contactor time delay contactor switch and overload relay .but my question is how we combine those component thank you
Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?
LT cable fault chaecking equipment and to find out the distance at what distence it failure . Name and where it is available?
For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation
how to set the time in digital timer ?
do we use neutral grounding for resistive balanced load? if we use what happen?
what is the use of current transformer in power transformer secondary side.?its connectyed in WTI
Please explain me abt PQ diagaram in the power sector.
what is effect of 5amp fuse on 2mva pry protection of transformer
WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?
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.
What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.
The coils having selfinductancs 10mh and15mh,effective inductance 40mh when connected in series aiding. what will be the equivalent inductance if we connect them in series opposing?
what is meant by class 1 E in electrical power supply?
what is the sludge current