Answer / ibrahim+8801671121852

lighting arrester is used mainly for balancing the voltages
of any building. when lit comes from the sky the voltages of
any houses is rises. to aviod this rising voltage we used
lighting arrester. but if it passed 3.3kv it doesn't work.
or it would be burned.

Grounding. Dear all at one of my site we checked the amps at the earthing cable to the alternator it was found 125 to 130 A. at the neutal cable in same machine found 146A. in the same plant checked the earthing current on other alternator it was 52A, and neutral 116 A. we are facing problems with our controller and the card was damaged once. can that neutral/GND current be a reason? as there is common grounding for the Alternator,Brkr panel,Transformer?

2 Answers  

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Hello,l am complete dip and i was working maintance in ht dep again i study b.e completed again one year exp in ht totally two year i am ealigble in c license

1 Answers  

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how does this job compare with others you have aplied for?

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what is cogging in motors?

1 Answers  

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How we can change the direction of rotation of Induction motor? Prove it using graphical methods.

4 Answers   Adama University,

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Piezoelectric materials serve as a source of:- A. Microwaves B. Ultrasonic waves C. Musical waves D. Resonant waves

3 Answers  

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State superposition theorem?

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what is short circuit force ? How to calculate it for Panel?

1 Answers   Bilt,

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Under wat condition statcom operates as an inductor for the transmission line?

0 Answers  

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why HT line voltage is multiple of 11.eg11kva,33kva,132kva

2 Answers   HP,

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How much amps carry in single phase R-phase,in D63A 4-pole MCB

1 Answers   TCS,

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What is the name of transformer oil?

18 Answers  

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