Answer Posted / vadlamudi068

dear sir ..
I completed diploma in electronics and communication engineering.how can get electrical c licence.now i am working in NTTF collage in electrical maintenance..please tell me about this..

Why syn. Generators are used for the production of electricity?

1168

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how can maintaince the acb contactor moveing and fixing kit

2086

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What is a fuse? How does it work? What are materials used?

2045

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Does outdoor isolator loose connection cause short circuit current in that circuit? if yes then how ??

1702

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Dry type transformers

1886

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What is meant by a stray loss of a induction motor??? What is the equation to find it

3102

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What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

2829

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What is CVT and what is relation with wave trap?

2156

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For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

2327

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What is the differance between 2 dc motors of armature voltage 660 v and 440 v?

1988

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what is mean by NPS (Negative phase sequence)fault? what is the difference between EFR & OCR faults?

2381

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What is mean by hot and cold loop testing?

1100

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how diside ct mf exmp.200/5 ct

2195

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hi pal, i am vengatesh from tamilnadu(chidambaram),i have called for the written test for the post of jr executive(ELECTRICAL) of AAI ,I dont know about the question paper pattern,so any kindly help me to face the examination,post me the model question papers and some tips to write my examination to (vengi.annadurai@gmail.com)

1893

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How many types of faults are there in 3 phase power system?

1098

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