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|What is the maximun current carring capacity in per phase
for three pole 100anps rating ncb
|what is called star connection and delta connection also
purpose of this connections?
|what are the points to be consider for MCB(miniature
circuit breaker selection?
|in three phase with neutral connection, what will happen,if
the neutral is in open condition with single phase
|Squirrel cage induction motor has constant
A slip B stator current
C rotor resistance D speed at all load
|IN 3 phase induction motor where we give i/p supply & how
its working ?
|when meggering a 3ph,480v oil reservoir heater on a regen
gas compressor, why do I get a reading to ground when
meggering phase to ground? shouldn't it read opened or is
there something that makes it read closed? on the same
heater, when ohming, it reads open. thanx
|what ll happen if neutral is not shorted with phases while
doing transformer short circuit test & what ll happen if
neutral is connected to ground?
|I do wonder why current is present in neutral wire?i check
single phase lead current feeding air conditioner...on its
phase its current was 10A while same was 10A in neutral...as
we know in neutral voltage is zero so if voltage is zero
then how current appears on amp meter?
my second observation is (just imagination)when I touch
phase wire it give me shock but when i touch neutral nothing
happens although as above its carrying current(amps)
third but with same logic...as in simple Alternate current
sine curve there is + and there is negative peak.means every
time phase changing so how come every time same phase and
same neutral stand
(pardon for english mistakes)
|for any load, what happen if we use the cable rating above its
|What does CDG,CDAG,CAG,VAJ,VAJH,VTT,VAZ,VAA etc. stands for
in case of relays and can anyone answer to decode this
codes C,V,D,G,A,X,TT,J,JH etc
|In Star type and Delta type Motors, If one phase will
miss/Break then which phase winding will burn and why?
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