Answer / venkata ramana

Three phase supply produce rotating magnetic field so three
motors are self starting so not required capacitors in three
phase motors.

What do you mean by dependent and independent voltage sources?

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Is it necessary to carry out sheath test after cable jointing? If the value is zero of such instance , is it ok to energize the cable?

1 Answers  

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Dear sir, we are getting voltage fluctuations suddenly for 2 or 3 minutes again it becomes normal. we checked each and every connection some times we are getting 110 volts like that from earth to neutral again it is reducing we are getting supply from 45 kva DG set give earthing properly.

3 Answers   Triveni,

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What is the difference between Earth Fault protection & Neutral Protection

1 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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Efficient electrical earthing in hard rock area

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how generator load test is conducted?what are the steps?

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What is the use of arc chute in ACB?

7 Answers   lenovo,

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i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

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what purpose of the percentage impendance in transformer

3 Answers  

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What is the voltage violating limit to be considered for load flow study? What is acceptable deviation limit according to relevant standards?

1 Answers  

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All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

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