Sample Interview Questions For Electrical Engineering

what is the purpose of NGR?

Wat is da difference b/w neutral earthing and unearthed system?

HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?

why 6.6,11,22,33,66kv? what basis they have considered?

What is the difference between short circuit and overload currents?

when we connect a CT in the line will there be any loses in the line due to the mutual inductance of the CT?

what is R Core Transformer? how it differs from normal transformers? dont search in net and post the answer?

What is the amount of no load current of 630 kVA tranformer voltage ratio 11kV/440V ?

Wat wil happen if Transformer is operated at 100 HZ Frequency?
Wat type of DC Generator is used for Arc Welding purposes?

What happen if LV supply is fed to a HT motor?

I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

How do determine the Size of a Droop Current Transfomer for Paralleling of Two Generators? Say I need a Droop Current transformer for a 600 kW generator need to be parallel with a 800 kW generator, etc. PNG-Power

Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.?

how much UPS neutral erath leakage current?.