What are the uses of lead compensator?

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When should I use earth leakage circuit breaker for incomer and when should I use it for each feeder seperately?

1 Answers  

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Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 Answers  

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what is working of communitator in a dc generator?

3 Answers  

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What quedtion to ask a electrical maintenance technician?

5 Answers   Bhel, Royal Furnishers,

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what is the advantages of Lighting transformer?.. is it possible to reduce the power consumption ?.

6 Answers   Lucas TVS,

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why square root 2 is multiplied with line voltage in selection of LA ie 11/sqrtroot3=6.35 kv and it is multiplied with sqrt2 ie 6.35 KV*sqrt2=8.9 kv we will select 9kv.my question is why we are multiplying with sqrt 2?

1 Answers   KSPL,

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what is the function of choke and starter in a tube light??

2 Answers  

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how can we say that stator magnetic field rotates with synchronous speed?can we derive?

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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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Tell me in detail about c.t. And p.t. ?

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What is the effect of pi controller on the system performance?

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