a solenoid of inductance 250mH and resistance 10ohm is
connected to a battery. the time taken for the magnetic energy
to reach 1/4th of its maximum value will be?
What happens if the negative to earth voltage is greater than positive to earth voltage in the battery of substation?
Main Differance between Primary Distribution & Secondary Distribution Of Electricity....?
5. What is PMG in Alternators?
why we measure ouput of transformers in kva.
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.
please mention the minimum IR value for different voltage systems
why rotor current reading is taken & why not stator?
Why we transmit the power at the voltage in the multiple of 11 or 1.1 like 11kv, 22kv, 66kv, 132kv...... some one told me that it is due to fomr factor 1.1 of sine wave. its fine but while transforming we can choose any voltage, so why only multiple of 1.1 there also.......? plz tell me.
How check electrical motor winding.
Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series
what will happen if secondary of potential transformer (220kv/110volt) of any metering core or protection core (cables) of any phase got earthed??
why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!