for flour light (garden light) how much deep need to put 222ov
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I have a 600VA UPS for computer only. It holds for 20minutes only. 1. Can it be upgraded for longer period.? 2. Can it be used for one ceiling fan and a tube light? If yes, how to upgrade?
why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving
how to mesure the earth pit value and what is the minimum value of single earth pit?
how determine base of given number like 302/20=12.1
How to calculate the size of cables (all minium/copper) for a particular load
1 Answers BSL, Galaxy Power System,
How can a equal potential zone be carried out in conductors?
Residual voltage & residual current used in which protection?
5 Answers Qatar Gas, Reliance, Transformers and Electricals,
Send me Model Question paper for the post Scientific Assistant in NPCIL
What is current and voltage?
why AC voltage source are generate as 50 Hz ?
Difference between copper earthing & aluminium earthing?
can any one help me for my ups inter view , list out few basic technical ups question with answer.