1.what is the difference between transformer differential and busbar differential.2)why we are using 2 slope for trafo diif and 1 slope for busbar diff.3)what is the purpose of metrosil and stabilizing resistor in high impedance relay circuit.4)how metrosil reduce the peak volage.5)what is the funtion of stabilizing resistor

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1.wat is the negative slip region in the motor?

1 Answers  

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Why RCD trips on connecting to one Socket but not trips one other circuit on same RCD.

1 Answers  

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how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

0 Answers   ONGC,

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2 t/f operating in parallel will share the load according 2 their- a)leakage reactance,b)pu impedence,c)efficiency,d) rating.

1 Answers  

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what is mean by PIR in circuitbreaker and give me detail of that?

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What do you mean by 4.44 in this transformer equetion E=4.44 nfqm

4 Answers   Bharat Bijlee,

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You are given 220 V supply source, four wires, an ammeter and voltmeter. There is no any indication or description on meters. How will you identify which is ammeter or voltmeter?

7 Answers   ABB,

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what is tha online tapping and offline tappchange? which side connected primary or secondary and explain ?

4 Answers   Essar,

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what is servomechanism?

1 Answers  

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is there any chance to get shock from the transformer oil at the time of maintenance due to its dielectric property. . ?

6 Answers   Bhel,

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What is the current carrying capacity of 35sq.mm flexible cable?

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