what is derated current of power cable & what is formule to find derated current?

1 Answers   Thermon,

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fuses rated by amperes but not power,why?

3 Answers   Blue Star,

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What is meant by line losses, how do you prevent the losses?

3 Answers  

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What is bandpass of a transformer?

2 Answers  

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directional relay is typically used to respond in fault condition who it can be used just as reverse power protection which purely senes direction reversal to operate a circuit breaker?

1 Answers  

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how much current a 100 sq mm busbar will carry?

1 Answers   ABB,

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Why is it preferred to use a wattmeter(s) to measure power in three phase systems rather than using a combination of other instruments e.g. voltmeters, ammeters etc?

2 Answers  

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why air handling unit interloking in case of fire

3 Answers  

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how the direction relay sense rhe directional fault?it's forward or reverse?

2 Answers  

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Wht ar the reason for low voltage on consumer side?

6 Answers  

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For RCD (Residual current device) Icu is defined. How i can find Ics for them?

0 Answers  

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why motors are rated in HP?

3 Answers   HCL, ncpl,

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