Answer Posted / mahmoud aboelfadel

distribution transformer is often 11kv/0.4 kv but the very important thing in this type of transformers is iron losses is least we can

Pleae send me last 5 years of Question book about RRB chennai.

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At full load wat is the motor p.f And at no load will is the motor p.f?

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what is buffer resistance starter.?.What is the working principle and where it is used..?

2034

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How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

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from where the self excitrd induction generator get the power?why is the voltage regulation is poor of seig?

2274

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How can calculate the rating of a servo stabilizer for given a specific load

3521

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what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

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defination of lines

1996

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role of europe union in UK safety legistlation (electrical safety)

1765

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How to calculate cable size in HT AND LT

2011

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Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

2135

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What is the difference between a verilog task and verilog function?

1285

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Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?

1999

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Disadventage of cable-gland earthing if any ?

2224

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What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

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