What are protection of power transformer?

1 Answers  

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How to increase solar cell efficiency ?

1 Answers  

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why dont we connect the two 12 V DC batteries in parallel, for an inverter (UPS)? is there any harm ?

3 Answers  

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Proviiding the Dedicated N earth and individual Body Earths ,Finally these all looped /Now my Question :- will it not harm in case of Transformer Fault current flows in Dediacted N Earthing to Looped Body Earthing.

0 Answers  

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Q-1 what are the structural and operational difference between a distribution and a power transformer? Q-2 what is skew in motors? Q-3 draw equivalent circuit of transformer Q-4 explain with phasors how pf is improved with loading in induction motors Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next) Q-6 pi model of medium length trans line Q-7 v/f control?why Q-8 vacuum circuit breaker operates in?

1 Answers   Vijai Electricals,

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How efficiency of thermal plant can be improved?

0 Answers  

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why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

3 Answers   BDL,

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Unit of Magnetic Flux Density a) Tesla b) weber c) Hendry d) Farad

3 Answers   Ecil,

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Describe how a salient pole / projecting pole rotor differs from a cylindrical rotor and state the application of each rotor respectively

3 Answers  

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In 110V DC supply,if a closed circuit gets open, How can we identify the voltage which is measured after the resistor(4KOhm) which is open with negative.it shows 55V +ve when measured, also the actual positive source is 55V +ve .Because there is no voltage drop in open circuit. How can we identify whether this is the voltage which is series with the resistor or the DC source direct +ve.

1 Answers   GE,

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Distinguish between shunt and series field coil constructions.

2 Answers   BEL,

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what are difference between indoor and out door substation

1 Answers  

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