Answer Posted / db

1.Whats the use of GNAC(Generator Neutral Accessory
Compartment)
Mounting of neutral side CTs and connection to NGR/NGT
2. why generator or any other system require Neutral
Grounding and not Phase grounding
If you ground a phase, you get a soild line to ground fault
3. what happens if any one of the phase is grounded.
An earth fault
4. if 15kv is grounded directly what will happen, why it
should not be grounded like that
Fault current will flow limited only by the impedance in
the circuit
5. use of of NGTR(Neutral Grounding Transformer and
Resistor) for grounding is helpfull and how
They both limit the earth fault current

Single line digram for 11 kV to distribution use go,la and do

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plz tell me,ht and lt panel terminals in substations explain beiefly

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which type of stability limit is higher,steady state or transient? why?

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What is Surge Capacitor? Why it is require in Generator Circuit Breaker,inspite of surge arrester?

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how we will deside the high voltage value

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XYZ

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i want to apper for apgenco or aptransco or related can any one sugest me where can i get previous papers of thouse exams

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1)Explain why the cradle guard is used on railway crossing in overhead line construction?

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sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

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what is the min and max ohmic resistance for the earthing rod installed for lighting poles for street light network

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HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

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