Why is it that North America uses 60 hz frequency while Europe uses 50 hz?

4 Answers  

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why is only master neutral contactor is made to switch in synchronization of dg sets

4 Answers   Honeywell,

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Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).

0 Answers  

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what are different types of excitation in synchronous generator,what is the difference between them

3 Answers  

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What is electrical charger?

3 Answers   HCL,

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what is the diff. between AVR & H.T.Stabilizer

2 Answers  

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Why we use stones in switchyard?

3 Answers   Havells, L&T,

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how to calculate short ckt current of trafo. ex.3-ph 3MVA trfo. 11/440, impdence voltage=7.25%

1 Answers  

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how kva rating of transformer is calculated.

6 Answers   Fluor Daniel, Siemens,

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what is the function of a starter in a motor? explain RLC circuit.

14 Answers  

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if we keep frequency constant can we cal a synchronous generator as a dc generator

2 Answers   Cummins,

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What will hapen if we run generator below 47.6hz frequency?

9 Answers   TATA,

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