Answer Posted / m.radhakrishnan

Circuit Breaker is switchgear equipment. when short ciruit
condition abnormal current flow in the circuit. To protect
all the equipment in the power system network against
excessive over voltage or excessive current.

Explain dc generator with its types?

1097

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oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

2016

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why various test are performed on electrical panels & power cables before commissioning on site & what are these test???

1974

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when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

1963

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how much LT load can bear by the 100 KW HT connection.

2213

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I need model question papers for RRB section engineer Chennai... Please send to my E-mail Id:- maitheerainbow@gmail.com

1931

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i want to apper for apgenco or aptransco or related can any one sugest me where can i get previous papers of thouse exams

3288

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why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

2254

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What are the criteria shall be considers for sizing Fuse and MCB? If the rated current is 10Amps what should be the fuse size / MCB Size?

1616

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what is die electric strnth of transformer ?

2174

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is all the servo motors having brake?please specify which servo motors having brake for stop on position and which are not.

1767

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how to compute kvar in substation feeder to improve power factor and sending voltage

2125

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What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1581

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how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1566

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what is servo motor and how to work it.

1899

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