Answer / bhupatmeer

In a.c. current and voltage waveform fluctuating.so we can not getting proper value.so we use d.c. meger.

When and where resistance earthing is used ? How to calculate the time constant for earth fault

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DEAR SIR, HOW TO CALCULATE WELDING TRANSFORMER CAPACITY IN KW OR KVA (POWER). TWO WELDING TRANSFORMER USED WHAT TYPE OF DG SET CAPACITY LIKE ( 45 KVA OR 62.5 KVA), PLEASE TELL THE WELDING TRANSFORMER RATEINGS. I AM REFINARY (TANKS WELDING) THANKING YOU

2 Answers  

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I need to calculate the Battery bank back up for below configuration:- UPS - 120 KVA Battery Bank - 200Ah Volt of each cell - 12 V Total No of cell - 34 No's Can you please help me to get the battery back up time for above configuration...? along with formula

1 Answers   Wipro,

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Hello sir i m student of gtu .what is idp.

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3phase 4 wire system is more reliable or 3 phase 3 wire systems?

4 Answers  

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transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

0 Answers   Bhel,

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What is the maximum and minimum rating of UPS?

0 Answers   Indiabulls,

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What is the reason for using a GE G101 MCB in place of an EP102 MCB if both are capable of AC circuit protection?

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0 Answers   Maples,

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Hi friends I am a service engineer in electrical field i plan to shift design engineer in same field, so i request your suggestion for what software or course i want to learn ?

5 Answers  

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if we convert ampers into kw,which one formula use by us,pls tell me?

11 Answers   ABB,

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Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

1 Answers  

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