Answer / kj

It acts to limit the current flow. When the tube lights up
the gas in the tube has very low resistance and n the choke
stops too much current from going through the tube.

why do we use UPF watt meter in short circuit test of the transformer and LPF watt meter in open circuit test of the transformer

2 Answers   Bell, TCS,

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how can i apilly for electrical c licencese.sir,i completed B.Tech in electrical & electronics engineering in 201onot working any company

0 Answers   Subros,

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formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

0 Answers  

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Do you know what is dry-out test in x'mer

0 Answers   First American Corporation, GPSC Gujarat Public Service Commission, Jindal,

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how can we change the supply voltage?

4 Answers   Areva,

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percetans

0 Answers   Bhel,

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what is relay

15 Answers   HPCL, IOCL,

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why the indian frequency is 50 hz & U.S.Frequency of 60 hz

3 Answers  

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can transformer develop three phase poer from a single phase source?

2 Answers  

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Active power= VI COS FI But incase of leading power factor ( more than unity), may we use other formula ? because the cos fi (value of cos thita) should not be grater than one.

2 Answers  

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1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)

0 Answers  

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what is the clearance time circuit breakr?

1 Answers  

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