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why does chattering take place in ac contactors? can it be avoided & what care does the manufacturer take to eliminate this phenomenon????
10 55964what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?
1 5223why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??
5 10311which are the criterias needed to select the kind of neutral earthing(solid earthing,resistance earthing,etc.) at various voltage levels in electrical distribution?
1991How maesure earth neutral value & how much maximum value value required in between earth & neutral.
2077THE 40 MW OF POWER FOR 220 V III PHASE POWER CONNECTION REQUIRES HOW MANY KVA POWEER REQUIREMENTS
7 11095In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?
2010Post New Electrical Engineering Questions
How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.
Why can't we parallel Voltage transformer secondary circuits?
Form S and "c" license application both are same? @ tneb portal
Mention the difference between Analogue and Digital circuit?
What will happened if the neutral of secondary of Xformer ( Star point) Note it's above KVA rated Xformer
What is the source of dependent source ?
How to calculate or formula to calculate rhe power in 2 phase system ??
Did RMU have ct and pt ?
what is the transformer turn ratio formula and give some examples?
if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.
What is the working principle of servo motor? And explain it.
how we calculate electrical load on a building according to area?
write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;
Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage
Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.
