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)

Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

3 Answers   Bhel,

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what is servomechanism?

1 Answers  

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What’s electric traction?

0 Answers  

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How much of the total hydro power potential has been exploited so far in india?

0 Answers  

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What is the phase relationship between the primary and secondary voltages of a transformer?

0 Answers  

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Explain why inductance of the iron cored coil changes with current?

2 Answers  

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A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42

3 Answers   Ramky,

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Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com

0 Answers  

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For 35 HP motor how much amount of capacitor should be on in kvr to reduce the current bill

1 Answers  

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Where to use pt and where to use CVT

2 Answers  

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What happen if we have run 415 V,50Hz designed motor at on 480V,60HZ

8 Answers  

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How CT is connected to measure current by changing plug setting , ratio is 300 - 150 / 5 A ?

1 Answers   Ajanta Pharma, Bhel, Cosmo Films, Suzlon,

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