How to calcualte the total number of cells required for particular UPS of some X KVA with 3 and 5 hours back-up?

1 Answers   JLL,

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in alternator permanent magnet generator is also connected on the alternator shaft,then y that PMG voltage is very low as compared to alternator?

1 Answers  

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What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.

0 Answers   MSETCL Maharashtra State Electricity Transmission Co Ltd,

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the site measured knee point voltage of protection class CTs should be greater than rated knee point voltage? what about meetering class CTs. Should it be below the rated knee point voltage?

0 Answers  

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what types of cable used in underground coal mining?

0 Answers  

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What are the precautions to be taken before working on a cable?

1 Answers   Alfanar,

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What is different between Difnit time and instatous over current relay

0 Answers   NCC,

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HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

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working of bucholz relay of a transformer

7 Answers  

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3ph motor running with unequal kw and different pf what are the reasons

0 Answers   UltraTech,

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how many BUSBAR is in electrical system?

3 Answers  

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what is the difference between ac motor and dc generator

0 Answers   ETA,

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