Answer / anitha

spark is a flash of light produced by electrical discharge
and arc is the phenomenon that occurs between the contacts
of the circuit breaker due to short circuit and also due to
large fault currents

Answer / k.prakashchandra

Arc is continuous(line) and spark is intermittent(dots)

what are the methods of speed control of dc motor???

4 Answers  

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

0 Answers  

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The neutarl to earth voltage in system is 7volts on Electricity power but it lowers to 1.3volts when load transfered to DG power.what may be the reason.

3 Answers  

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what is the 2MVA distribution transformer efficiency

1 Answers  

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what happen if field of dc shunt motor opens? what is function of putting res. in parallel to one phase of 3 phase IM? the power supplied by 5A source in circuit is given by------Watt.

0 Answers  

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What is BusBar integrity test and how it is conducted?

0 Answers  

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what is the difference between earth and unearth cable?

1 Answers   Essar,

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We have Diesel generator of 200KW but load connected to it only 100KW. Pl. brief me about fuel consumption.

4 Answers   ARDE,

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How many input terminal of single phase transformer.which is use for rural power distribution.

1 Answers   RMSI,

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Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

0 Answers  

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if we apply 1000ADC instead of 100ADC or We apply 50ADC instead of 100ADC,What will be happened in the test result value.Pl explain

0 Answers   NCC,

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Which one hurts more AC or DC Current ?

10 Answers  

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