what is circuit breaker in transfomer and where it used
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what are the advantage and dis-advantage of 3 phase 4 wire energy meter?
What is the PIU.
If a 1.5V,3W torch light bulb is connected in series with a 15HP/11.19KW,230V single phase motor and the combination is connected against a 230V supply and switched on than what will happen keeping all other parameters as it should be A)the bulb will glow normally B)the bulb will not glow C)the bulb will glow with extra brightness D)the bulb will burn out and if a fuse is connected to the above circuit will something happen to the fuse and what about the single phase motor will it be affected? Please explain with derivation
why field resistance is higher than armature resistance in dc machines? and why filed resistance is kept at min value at starting in same time of armature resistance at max value?
What is relation between mu(nought) and epsilon(nought)?
Why are some relay circuts designed to have the ct current flow through the neutral instead of the phase wire, such as in some diff relays?
what will happen when choke in tube light circuit was not working???
Is this possible to synchronize the two different ratings of dg
1amps current equal to howmany electrons to be flowed?
why battery room in substation is black coloured?
In case of 11kV dual delta bank what are the recommended protections with specific CT / VT requirements? The capacitor bank is to be connected to the main 11kV switchgear from where the H.V.Motors and auxiliary 440V loads.
what will happen if neutal in AC ckt will get open
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