differtiate between energy consevation and energy efficiency..

1 Answers   L&T,

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If DC supply is given to a transformer it may a) Work b)Not Work c)Give lower voltage than the rated voltage on secondary side. d)burn the winding

12 Answers   wbsedcl,

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How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks

3 Answers  

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In a d.c circuit, if current and resistance are known, power (P=I*I*R) can be determined. This relationship also applied to an a.c circuit. Comment the reason for this.

3 Answers  

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what is the differance between HT motors And LT MOTORS.

0 Answers   Empire Vitrum Glass, Sappi,

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what is per unit impedance?

3 Answers  

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WHat is the general checks required for Dry type transformers

0 Answers  

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What is the acceptance value of leakage current in HI POT test

2 Answers   CPCL,

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how we sesign the transformer give some specifion regarding design of transformers

0 Answers  

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Explain why the Voltage drop will happen in 3 Phase line?

3 Answers  

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1 Answers   Exide,

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how many earthing should give for transformer body and nuetral

5 Answers   GMR, GOMS,

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