Is it possible to use AC supply insted of DC supply in trip coil operation? if not, why?

5 Answers   HAL,

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My ups output shows 230 v between phase and neutral,but show zero between phase and earth.Is the system/installation is correct.If not what will be the possible reasons

4 Answers  

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what is active power & reactive power?

0 Answers   Avtech, Jindal,

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why ups in kva ratings?

2 Answers  

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I AM FROM ELECTRICAL ENGINEERING ? I AM ASPIRING FOR "BHEL".HOW I HAVE TO PREPARE .ON WHICH TOPICS TO BE CONCENTRATE MORE.PLEASE GIVE FULL DETAILS OF WRITTEN EXAM.

0 Answers   Bhel,

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What are steps to be taken while designing of DYN11 distribution transformer to achieve magnetising balance?

0 Answers  

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How can we save theft of wire after finishing of wiring work, plz suggest another answer other than security or supervisor's work?

1 Answers  

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At no load the PF of an alternator -Zero -Zero Lagging -Zero leading -None of the above

2 Answers  

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1 ph induction motor winding priniple and connection diagram?Similarly for 3 ph induction motor?Full description

0 Answers  

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What is the type of electrical earthing recommended in hard rock area

2 Answers  

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why the 4 terminal are named as main, line, common, voltage (M, L, C, v) of a wattmeter?? why not its nameed as A,B,C,D??

6 Answers   Jindal,

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what do you mean by 1 ton in AC`s

36 Answers   Bhel, Bosch, ITC Infotech,

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