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|Why transformer rating in KVA?
and Generator also?
|hw to find transformer is in normal position? whether its
in charged condition or not? except humming sound?
|where they are using surge arrester and lighting arrester?
how they connect? what is the purpose of that?
|How to differentiate 220 Kv & 132 Kv line transmission tower if there are no specifications given on towers?
|how to select the power contactor in Diffrent AC motors.
|How Much Capacity of Diesel Genset is suitable for
20 no.s of 1.5ton AC's & Why?(Load Calculation)
|what is main difference between live tank and dead tank
|I have two power supply.a)govt. power b)Captive power.3
phase load connected inside factory.when source change govt.
source to captive some motor rotate reverse. Is phase
sequence changes when if off & on?If I off generator & on it
again is it possible to get changed phase sequence??
|why should we have to maintain pf in our site 0.9????????
|Explen all type electrical protection ? like
O/C,E/F,NPS,VOLTAGE UN BLANCE,CURRENT UN BALANCE,NAGETIVE
PHASE SEQ,AND ETC...............electrical Protection
|At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC
54A as per the nameplate. At the time of starting it draws
840A instead of 390A (7.2%). As per the data sheet also its
390A starting current. it thru a dol starter from the MCC.
can anyone tell what is the problem in the motor
|how harmonics are generated due to nonlinear load & how
harmonic filters work?
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