We have given to 3phase supply to ups system & how can coming netural

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where lt & ht capacitor used

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why choke is provided in the centre of the tube light?

3 Answers  

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what are pilot cells

0 Answers   KSEB,

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What are the different towers used in 132kv transmission line? what are the differences between the P,R,S towers used in 132KV and detailed explanation

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in house wiring when two wires are same colour coding and there is no any connection one end how to find which wire is earthing wire

1 Answers  

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Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers  

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State The Difference Between Generator And Alternator?

0 Answers   ABB,

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While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 Answers  

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I need bhel electrical test pattern & paper

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in a dc shunt motor what happens if motor takes high current,no speed

2 Answers  

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Difference between low impedance and high impedance Restricted Earth Fault

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