Answer / k.prakashchandra

To allow for unbalanced load.

Answer / k.prakashchandra

CT rating is the same as that of line CTs .Only the relay
setting for earth fault is 20 % of OCR

WHY THE +VE POLARITY OF 48V DC POWER SUPPLY IS USUALLY GROUNDED?

1 Answers   Tulip,

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pls,send the previous year written test questions.

0 Answers  

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How to run 1ph motor(230 VOLTS its full load amps is 4.5 ampa))with 480 volts main(we didn hav neutral)Thn we go for step down transformer.Our load 10 amps,so we conisder this amps in primary are secondary side?

1 Answers  

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How do you maintain the batteries for generators, what is the daily maintenance of a generator?

2 Answers   Jindal,

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what are the different pre- commissioning tests performed on distribution transformer, power cable and switchgear?????

1 Answers   Reliance,

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what is the bus bar size of 2700 amp ACB breaker ? and what is the cable size ?pls detailed answer ?

3 Answers  

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What is the difference between surge and impulse?

4 Answers  

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what will be the effect on the voltage .if power frequency is increasing or decreasing.

2 Answers  

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Meaning of CTPT ,how it works &how it measures the reading on trivecter meter,&what is trivecter meter

1 Answers   PF, Student, TSSPDCL,

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Can we use a Potential Transformer for Auxilliary Power supply( Spring charge Motor, Lighting etc)?

1 Answers  

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we have 400kv/6.6kv transformer ,it has total 9 taps on HV side with normal tap on tap no 5.when we took the ratio test we observed that ratio was decreasing from tap 1 to tap 5 and was found increasing from tap 5 to tap 9.What is the reason?if anyone have related document then please send me on the email id ankushbahale@gmail.com......plz plz

1 Answers  

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what is grounding & what is the value of groumding rod 2.5m?

3 Answers  

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