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

2 Answers  

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In Indian Railways , how the AC motor is driven? Please explain clearly starting from the overhead 25kV supply.

1 Answers  

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What is the difference between MCCB & MOCB?

1 Answers  

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What is the difference between Isolator annd Circuit Breaker.

21 Answers   ABB, Lanco, NTPC, Power Grid, RInfra,

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What is the difference between alternator and generator?

0 Answers   IOCL,

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Why stand-by earth fault relay and restricted earth fault relays are connected between neutral and ground in transformer?

1 Answers  

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how can we chacke adiod in a circuit

2 Answers  

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What will happen 50 HZ motor when you will give 60 HZ?

7 Answers   Bhushan Power Steel,

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What is the use of doing meggering for a cable

2 Answers  

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in what type of applications v can use q meter?

0 Answers  

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what is the surge arrestor?how it operates?what is the range for it?

4 Answers  

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Can I do body earthing of machine by using Cable armour or I have to run another GI wire for body earthing and how many wires I need to run. Is there any rule for this. eartnig

3 Answers   HAL,

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