| Other Electrical Engineering Interview Questions |
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|What is the Frequency while we step up the voltage from
220V to 11KV? Is it possible? Explain it?
|Just a silly question but just to make my curious mind bac
to normal - Why was not 67 and 67N
relays built into a single relay as i have noticed that the
R,Y,B CT wiring end up into the 67 relay
while the common of the R,Y,B CT wiring end up into the 67N
relay. Then it was better if a single relay was manufactured
just like the distance relay (21). Another question i would
like to ask is - how do we know where the 67 and 67 N
relay has to be placed.why is it not placed at the
transformer bay? In the substaion that i am working -i have
noticed that it is placed between a breaker and
a common double bus bar and this line bay is connected to
another substation at a remote place which is furthur
connected to a load.
S______CT for 67 & 67N ______Breaker _____ remot s/s.
|why transformers are sometimes kept on concrete benches..?
|what is purpose of manual bybass in ups
|In any plant or substation main incommer voltage RY - 415
V,YB - 400 V, BR - 387 V(in commer feed from transformer 11
Kv /0.415 KV) why found voltage differance in each phase?
plant have not self power plant it is depend on outsource
|how system fault level is calculated?
|what is the use of vcb & isolator in substation?
|1.what is the easiest way to convert AH(ampere hour)to watts?.
|can we share mvar in parrelell connected alternators
|what is the formula for transformer oil?
|What type of bulb used in small size cross symbol boder and
original flame type(Deepam)?
|wath is skin effect?
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