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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On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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what is the step by step formula for calculating bus bar phase and neutral size of a panel board.suppose the incomer of panel board is 100A..???step by step answer please

1 Answers  

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why voltage rating not mention at HPSV or HPMV lamps?

2 Answers   OPS,

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how to work current transformer and potential transformer

1 Answers   Adhunik,

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why florescent light was flickering?

4 Answers  

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What do you mean by deregulated power system structure? Which structure (regulated/deregulated) is used by modern power system?

1 Answers  

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We have got the HT connection of 1000 KVA in which we have installed a seprate APFC panel at the PCC end & seprate KWH meter is installed. My question is that does the KWH reading shown in the meter is a part of the Consumption ???? ( approx 500 units is shown)

1 Answers  

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which pump used in STP

0 Answers   Dalkia,

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brief notes on ammeters

0 Answers  

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how to calculate relay rating for 50kw load

1 Answers   JNU,

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how to varied the frequency in transmission line and how i kept it as a constant one?

2 Answers   L&T,

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