Answer Posted / preethi

yes in d.c no alternating supply ,no change of current with respective time no e.m.f induces as we know that transformer is a static device works on principle of mutual induction no flux means no induction.hence it not works with d.c. suply

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1589

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Draw a SLD of DG distribution up to main LT panel?

9472

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How can we measure the residual voltage in dc machines?

1855

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Is there a possibility to use such a treshold voltage for the NMOS part of a CMOS circuit that during the switching it will start conducting only after the PMOS part will be already closed, by this eliminating the leakedge current? Please note, I'm not asking about the well bias in standby mode, but about the "antileakedge" measures during normal operation.

2062

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What is trip and closing coil in cb? Why need of them

1507

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2291

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when we decide to use soft starter drive or vfd drive in mcc to operate apump?

1977

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what is the value of combined earthing in general electrical circiut?

1900

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Why the frequency of ac in india is 50 hz but in some other countries it is 60 hz.

2128

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What is pi controller?

1174

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What are the uses of lead compensator?

1173

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we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

1725

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How to decide whether A / B / C / D curve type MCB should be used?

2282

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To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

1915

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Define the overload capacity of the motor?

2035

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