what is automatic voltage regulator and it is used?

28 Answers   ACME, TCS,

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hello everybody...i m an Elelctrical Engineering student.. i m in final year.. i m attending IOCL interview on 2nd aug. kindly let me know on wat subjects to concentrate more...any body who has attended the interview can help... others can also post their views... thankyou.

3 Answers  

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1. When do you use a VFD motor? 2. If the ceiling fan is on slow speed, does it consume less electricity? 3. If we want the fan to consume less electricity at low speed, what do we have to do? 4. What does “battery of 180 AMP HOUR” mean to you? 5. What does “battery of 180 AMP HOUR” mean to you? 6. If you don’t have coal, salt and copper, then how would you earth your connection temporarily at a camp site.?

6 Answers   Asian Power, Bhel, Focus, Focus Energy, L&T,

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in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

0 Answers  

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what is demagnetising effect & crossmagnetising effect and how it is related to electrical system?is there any more effects are available or only these two??

1 Answers   Telco,

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I am an electrical engineer, I found variation in KWH between DG and EB for Same load for same duration, can any one help me why this variation arises?

1 Answers  

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Explain what is CBCT.

1 Answers  

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what is the difference between high impedance & low impedance

1 Answers   L&T,

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what is errection pcbs?

0 Answers  

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In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 Answers  

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mention the earthing system as per BIS?

1 Answers  

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why grid frequency varry time to time?

2 Answers  

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