The transformer which is smallest in size is and how to calculate that? The options are 100 KVA, 50 Hz 100 KVa, 100 Hz 100 KVA, 25 Hz 50KVA, 25 HZ

4 Answers   Ranbaxy, Zee Laboratories,

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An engineer measures the direct current resistance of a transformer using ohm meter. When he/she takes out one of the leads of the meter, spark comes.. Why ?? This effect is known as...

1 Answers   Saint Gobain,

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what is metering cum synchronizing panel and how it is used?

0 Answers   Wipro,

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we know that dc motors are more superior then three phase induction motors in torque generation though they are not much used in industries why?

5 Answers   Essar, L&T,

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operation of protection relay watchdog contact?

0 Answers   L&T,

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why we use battery source for current transformer polarity testing?

2 Answers  

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why Induction Generators are not "Black start" ? and apart from WTGs where this types of generator are generally used?

0 Answers  

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why use -48 volt DC power in telecom?

3 Answers  

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What is the fuction of surge arrester and surge suppressor? Modern days line designes are based on which surge?

1 Answers  

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1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.

0 Answers  

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what is H.T?specify the range?

6 Answers  

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what is preventive maintenance? and what is predictive maintenance? and what diffrence both?

3 Answers   Volkswagen,

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