what is the diffrent between ups and inverter

2 Answers   ABB,

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what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

0 Answers  

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6.6Kv feeder feeding tow step down transformers-415V-,what the possible consideration for parrellel operation?

1 Answers  

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What is the difference between magnetic loading and electric loading of a machine?

2 Answers  

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HOW CAN YOU CALCULATE PRACTICAL EFFICIENCY OF A ASYNCHRONOUS INDUCTIONMOTOR OF 7.5KW,& MOTOR IS RUNNING WITH AVOLTAGE OF 410 VOLTS,& TAKING CURENT OF 13 AMPS

0 Answers  

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Normally the starter used to reduce the starting current.but the dol starter do not it,so why we use it?

4 Answers  

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How to calculate phase to phase difference in 33KV Line ,11KV Line etc.

1 Answers  

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What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?

2 Answers   Techno Labs,

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How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 Answers  

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WHY RATING OF VCB NOT LESS THAN 630A

0 Answers  

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what is PDU in transformer?? which company manufacture??

0 Answers  

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What is Primary and Secondary Injection Test of CT and Relay.

2 Answers  

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