Answer Posted / ramu

if secondary of current transformer is kept open it will
blast

What is the mmf,rgt and ngt please brief completely

1166

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what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.

1577

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whatis the commertial spec. of distribution boards ?

1542

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What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

2095

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Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?

1351

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why transformer tank is in rectangular shape what happen when it is in step shape

957

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WHat is the general checks required for Dry type transformers

1657

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iam preparing for rrb section engineer post in electrical branch.suggest the right textbook for my reference.fromwhere i will get the previous q.papers?

1734

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A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.

1464

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in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

1884

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Which motor connection is preferable star-delta or delta-star?

635

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we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

1429

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state basic meaning of 'INDUSTIAL AUTOMATION'?

1370

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i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula

1731

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When a square wave is applied to primary of a transformer then what will be output wave form of secondary ?

1588

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