Answer Posted / bramananthan

Whenever the unbalanced current flow in the circuit the connected EFR sense that current and giving signal to the UV or shunt coil which is placed in the breaker.At that instant the breaker comes to Trip & break the supply.

In Power cable specification what is U0/U and Um.

3878

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What are the two major types of control system?

1142

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how to calculate magnetic force genrated by a coil ?

2255

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Can you explain about TEE protection scheme?

2358

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if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

1993

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whats the differece between Exd and Exe

5026

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the typical output of a solar cell is........

2415

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What is Fire Panel ? How it works ?

2119

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What is the difference between the transmission line and distribution line?

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What is the relationship between voltage,current & frequency?

1820

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how to avoid electrical shock how capacitor store charges wat are the speed control of induction motors state faradays law flemings left hand rule what is rotary converter wat is transmission and distribution what are the sources of energy abrevation of acb,vcb,sf6,igbt what is output equation of transformer which test copper iron and iron loss are calculated what is eddy current draw a single line diagram (10 marks) draw direct online starter(10 marks)

2028

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why we get 2 differnet values for power factor in 2 watt meter method in 3 phase

1915

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dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

1418

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what is a bus post insulator? explain its application in a substation.

12667

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I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

2003

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