Answer / hpl

Voltage regulator working principle depend on feedback
circuit.ie output requirement. it maybe static voltage
regulator or by auto transformer

why corona ring is used in out door switchyard lightning arrestor

3 Answers  

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How does the phase sequence controller works, how it identifies the phases? confirm working principle

0 Answers  

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wat is power factor

7 Answers   IOCL,

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At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC 54A as per the nameplate. At the time of starting it draws 840A instead of 390A (7.2%). As per the data sheet also its 390A starting current. it thru a dol starter from the MCC. can anyone tell what is the problem in the motor

5 Answers   ME,

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What is a Single Phase and Three phase Power? How it will be converted or transformed into another form?

3 Answers  

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How servo stabilizer works.

0 Answers  

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what is accuracy ? in any meters , coils accuracy . how can u defined that ?

0 Answers   Adani,

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a bulb of 100W and anather bulb of 200W , rated supply voltage 230v.when supply voltage is reduced to 100v,which bulb will give more light? and why with calculation?

12 Answers  

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What is meant by reactance voltage?

0 Answers  

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) why transformer cannot rotate though the principle behind induction motor is similar to a transformer

3 Answers  

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How to select the different contactors ( starter combination) for different AC motors? what about fuse cappacity 4 different motors too?

2 Answers   Equate,

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How many points does a Circuit can have?

0 Answers  

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