How frequency meter measuring frequency? What is the principle of frequency meter?

2 Answers  

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the rating of fuse wire i always expressed in what?

3 Answers  

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Whats the use of earth pits? and it will function? whats the natural earth value? How to improve ur earth resistance?

3 Answers   Anwar Ispat,

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what is skin effect?

4 Answers  

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which generator is called as brushless excitation generator and why??

3 Answers  

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what is the difference between "ampere trip and ampere frame"

1 Answers  

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what is the principle of switch gear? where its function ?

9 Answers  

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what is the difference between static and dynamic induced emf?

14 Answers   College School Exams Tests, MRF, Suraj Constructions,

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what is the type of pilot wire in pilot relay?

1 Answers  

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CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

0 Answers  

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in india ac frequency is 50hz, but in foreign countries it is 60hz,whwt is the reason

9 Answers   SVIT,

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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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