in 220 kv substation,what is the mean of avr voltage reading?
means at oltc temp. 36 the avr voltage was 109v.so what the
mean of 109v
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what is the usage of microcontroller in the panel board?
Fantio of tranformer
What do you mean by power transformer?
Is it a better option to procure screw type air compressor rather than reciprocating air compressor?If so, what is the reason?How should we select an air compressor(100 CFM)? Please mention the important parameters of air compressor.
Can we use BS 6651 and BS EN 62305 standards for computer room lightning ptotection in substation?
Explain the operation of variable frequency transformer?
What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?
how to design coil turns ?
Why computer humming sound occurred in ht transmission line?
what is the common earth
what are the parameters plays a major role in Potential transformer Burden calculation??
Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.
how to calculate micom relay earth falt time and current sertting
What is formula calculation size cable wire ?
Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?