Answer Posted / munna

Transformer neutral should be earthed separately by Cu Flat
strip to Earth Pit. Yes T/F neutral is connected to earth
mat in substations.

In how we connect watt meter for open & short circuit test of a single phase transformer.

6731

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What is the difference between isolators and electrical circuit breakers? What is bus-bar?

1160

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Why an ac solenoid valve attract the plunger even though we interchanges the terminal? Will the poles changes?

1225

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How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

1661

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What is the previous name of Cox's Bazar

2255

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10 Mtr Hight of Lighting Arrestar how much area coverd??

2510

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WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

1985

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Define cut-off rate?

1094

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How Calculet The UPS AH In Load

1909

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What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

1636

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What Should be the value of Vector Surge angle at Tripping and how to calculate it?

2065

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send me all basic electrical question and answers

2928

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I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

1932

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Why L.T.Cable voltage rating is 1.1kV,where as system voltage is 0.415kV?

2352

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Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

1981

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