what is difference between RCB,RCCB &RCBO?

3 Answers   ABB,

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what happens in the primary side of the transformer if transformer is short circuited first and increasing the resistance of the short circuit gradually?

3 Answers   Emerson, IIT,

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What will happen if primary of transformer is fed with Square wave instead of sinsoidal wave ?Will it operate or Not?

3 Answers   Areva,

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when we have to use UPF wattmeter and LPF wattmeter? what is the difference between UPF and LPF wattmeter in terms of construction?

0 Answers  

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Is it necessary to place tap changer in secondary winding or we can use on both sides?

3 Answers  

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Which is the largest hydropower station in the world?

0 Answers  

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How can calculate the efficency of the rectifier. input 240V AC, current 5 amps,P.F 0.98, Output is 54 V DC,62.6 A.

10 Answers  

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how to find out this one mcb r mccb?

4 Answers   L&T,

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what are advantage and disadvantage of zener diode?

2 Answers   Infosys,

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Hi, My plant daily consumption is calculated as 3.8MWH but my supplier has sanctioned an power of 2.6MW per day. how can i equal or distinguish this two factors

0 Answers  

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what is reactive power ? what its role in transmission lines?

3 Answers   Thermax,

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How phase displacement change in the over current relay coils.

0 Answers  

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