What is the relay function?

2 Answers  

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critically criticize the application of ring main unit in power system

0 Answers  

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In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

1 Answers  

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. Is there a simple method to measure the horsepower of a small motor (1-3 hp) for a non-technical person

2 Answers  

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What is load boxes ?

0 Answers   AMIE, PEPL,

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how to calulate short circuit current for the following: 1.cable connecting 11KV of 22KV/11KV transformer to 11Kv of 11KV/415V transformer 2.what cable size should i use.

0 Answers  

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where any change in supply line due to the incipient faults in three phase induction motor

2 Answers   ABB,

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How can you measure the signal from the PT100 sensor?

1 Answers  

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what is called star connection and delta connection also purpose of this connections?

3 Answers   Siemens,

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how does directional relay work incase of ac ?

0 Answers  

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A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 Answers  

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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