Answer / rajendran

in VFD's if the supply leads are connected in the output
side, it will damage the device permenantly....

Answer / amit.sonmale

If I/P & O/P IS Conected with each other Then There will
not control on speed of motor It means Motor will directly
Conect with Suply.

Answer / sony

if the i/p and o/p are wrongly connected that will lead to damage of the driver .

Answer / jo

it will damage the i/o card

Answer / s.magi

It will damage the IGBT and also the power board of the drive.

Are we do it in single transformer with dual primary as 11 KV and 33 KV and constant output as 415 Volts?.

1 Answers  

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Which motor has more efficiency ;Synchoronous or Induction motor ?

4 Answers   TATA,

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ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

0 Answers  

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How will be the single line diagram of series trip HT breaker? how it works?

0 Answers   HAL,

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3.The slip of an IM UNDER FL condition is about.....

1 Answers   SSC,

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Why the meters sonnected to metering core of CT are not damagedon event of a fault??? Explain the phenomena??

1 Answers   Schneider,

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What is the actual formula for transformer short circuit test? below i given rating of the transformer.. 1000KVA, pri 11KV, Pri amp 56A. %Z 5.95..

2 Answers  

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What is the basic difference among IPS,UPS,EPS?

2 Answers   ABB, Navana,

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how LT meggar works

1 Answers   Essar,

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If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

0 Answers  

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how to check the insulation for motor using megger?

2 Answers   GSK,

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Reason of secondary of ct always short

5 Answers   ANITS, EID Parry,

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