Answer / gunasekaran

transformer inrush current having more 2nd horminics it
will give the false trip to diffrential protection

Answer / sudheer868

It has frequency 2 times that of fundamental.Second
harmonics does not effect transformer as the supply is
symmetrical.If supply is symmetrical even harmonics are
automatically eliminated.

what is the purpose of interpose t/f in control and relay ckts?

2 Answers  

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two generator runnig with parallel but only one NGR on And one off Why

1 Answers  

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how to find the capacitance value of the motor while running??

0 Answers  

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One B.O.T Unit ??

10 Answers  

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1.what is electricity 2.what is electronice 3.how many modules 4.five electrical component with symbol 5.five electronice componene with symbol 6.how convert 220v.A/C to 24v/DC 7.220V.WAIRING DIAGRAM OF AMMETER/VOLTMETER/OHMMETEER

1 Answers   Hatsun,

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Will transformer heating be approximately the same for resistive, inductive or capacitive loads of the same VA rating? Explain.

1 Answers  

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what is the reason of battery voltage is 12v maintain?please answer me.mail-psrinivasan20@yahoo.com

1 Answers   CTS,

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with 3 phase board on a 63 amp rcd is it ok to have 6 electrical showers 2 on each phase and what problems could happen

0 Answers  

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why write 500v on line tester (Test pen)

3 Answers  

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which is dangerous AC or DC? If so why?

4 Answers  

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Is necessary Protection CT, CLASS - 5P10 fitted at Incomer side of main Breaker ? Why ?

1 Answers  

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why knee point voltage should be high in Ct for differential protection

1 Answers   NTPC,

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