Answer Posted / k.prakashchandra

CT specification depends on rated/nominal current not the
fault current as it is momentary.

Why PT voltages are measured with respect to ground? What do u mean by voltage or current polarized.

2387

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In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

2270

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Can u Explain about the electronic trivector meter and the use of data converters in them?

2374

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Why the magneti fields are not passes from southpole to north pole

2137

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how cables go in and come out for distribution from the feeder pillar box?

2099

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What do you mean by lighting transformer?

1064

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What is rotary phase converter?

1099

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Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

1921

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How to Calculate the Fault Level of Electrical Installation

2276

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Whether power factor should be high or low? Why?

1133

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I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

1964

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what is the difference between b c d curves on mcb

1815

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I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

1684

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List examples of current sources?

1122

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Iin ESP why positive is grounded ? why not negative ?

2676

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