What is the difference between IGBT and TRIAC?

3 Answers  

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why booster transformer is used in sumpners test conducted on transformer????

0 Answers   Cooper,

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What is the difference when selecting a cable between AC and DC current?

13 Answers   ABB,

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what is the name for a meter/tester to measure the paint quality in electrical panel or wall?

1 Answers  

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What is the most important precaution in any experiment with d.c. Shunt motor?

0 Answers  

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1.what is the reason for transformer and lightning arrester blast in 33kv system

0 Answers   ABB,

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Why is the diffrential protection in DG. What if the CT polarity is reversed while connecting for the same type of protection? How polarity can be made ok?

1 Answers  

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fuses rated by amperes but not power,why?

3 Answers   Blue Star,

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slor cell made?

1 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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Can we transmit digital signal to long distance ?

0 Answers  

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power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 Answers  

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