What is the fuction of UV & how it works in circut breakers? is it one type of relay?

4 Answers  

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How to increase the specific gravity of DG batteries?

12 Answers   SCS,

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What are safety features considered for Lifts during emergency?

1 Answers  

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how does directional relay work incase of ac ?

0 Answers  

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why the arc welding machines require parallel earthing systems? ie why each machines are connected to earth pit by separate wires during earthing? wats it adavantages?

0 Answers  

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Why Nutral CT rating for Earth Fault Protection of Transformer neutral shall be 20% of Full load Current of Transformer

2 Answers  

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what will happen if ac power supply is given to the rotor of an alternator

1 Answers   Goldman Sachs,

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what is purpose of using reactor in substations

4 Answers   NCC,

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Why transformer making sound during operations?

2 Answers  

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what is specific gravity of a battery if specific gravity increase/decrease,what will happen to the voltage/current of the battery

5 Answers   NTPC,

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What is the difference between sensitive earth fault and restricted earth fault in power transformers?

4 Answers  

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what does the transformer connection symbol YNaod1 mean ?

3 Answers  

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