Answer / m tashfeen abbasi

UPS calculate in watt and battery calculate in AH(ampere hour)

Answer / aamirali

we can use this formula: Max Amp= (KVA rating)/ (kv*1.73)
for three phase supply.

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

1 Answers   L&T,

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which technique servo motor tested o.k or faulty ?

1 Answers   ABB,

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What's ND relay & it's functions?

2 Answers  

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What is the high tension lines voltage and low tension lines voltage?33 kv is high tension line or low tension.

1 Answers   MPSEB,

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what is the differance of acb and mcb and mccb

12 Answers   MacAir, MDS,

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Why tripping not occur when the transmission lines (11KV & above) breaks? Doesn't we provide earthfault protection for it?

1 Answers  

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what are the reasons for overheating in electrical machines?

3 Answers  

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what is interlocing and what is the purpose of this?

4 Answers   L&T,

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in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

0 Answers  

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What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?

2 Answers  

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why transformer rating in kva and motor rating in kw

11 Answers  

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what is the function of compressor?

2 Answers  

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