Please mention available current rating for MCB,RCCB,MCCB in the market or any website

1 Answers   ETCO,

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1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

10 Answers   Engineering,

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

1 Answers  

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In what circumstanced the CT used for protection relay will be saturated?and what will happen to the relay is the CT is saturated?

3 Answers  

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how much loading in terms of ampere can put on 5 MVA,33/11 KV TRANSFORMER having rated current 263 Amp ?????????

11 Answers   ABB,

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We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.

0 Answers   SK Engineering,

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what is difference between power & distrubution transformer ?

3 Answers  

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Why a Transformer Noise during its running condition ??

11 Answers   NTPC, UPPCL,

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When the power Factor (p.f)is lead then how the Voltage can rises?

1 Answers  

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What is the Current equation in series RLC circuits.

0 Answers   ABB, Bhel,

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What is the difference between Neutral and Eatrh?

8 Answers  

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why a pilot exciter is used in combination with the main exciter? why not only a main exciter is used for excitation to an alternator?

1 Answers   Electrical,

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