Answer Posted / waseem aslam

Control circuit wiring of substation refers to wiring of protection relays of transformer with the circuit breaker and wiring of over-current/earth-fault protection relay in the CB, including manual tripping operation.

Why two phase welding machine is used instead of three phase welding machine.

1917

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For some transformers we are using solid neutral earthing while some others we are using resistance earthing why ?

1893

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why there using acb enclosure in big buildings

2091

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can i connect REF and Differencial relay in 1 CT core for transformer protection?

1918

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Please sent me some previous year question papers of BSNL-JTO telecom and RRB in ELectrical Engineering to varshashahi@yahoo.com

2052

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What is installed in PAC that is control the humidity

1502

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what is the role of transistor in Circuit?

1177

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Showing results for capital, machinery, stock,wages, carriage in words, salaries, factory rent, repairs, fuel and power, buildings, debtors, sales, purchases, creditors, return outwords, return inwords, drawings, discount allowed, discount receivable, office expenses, bills payable, bills receivable, cash in hand, cash at bank, office rent comes under debit or credit

1518

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Difference between HRG and NGR. Are they both the same thing

4280

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what is basic difference betmeen normal & flame proof motor??

2019

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some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

1750

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how to select fuse rating for a 3-phase motor ???

1792

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if the motor rated speed is 950rpm. how to change the above rated speed? is it possible?

1406

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what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2699

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WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm?

2095

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