What is battery Amphere-hour? How the battery back up time period is calculated?

2 Answers  

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What is differential relay? How it operates?

1 Answers  

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what is two wattmeter test

2 Answers   Jindal,

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How to reduce power factor correction capacitors failure in an industrial environment with vsd and computers usage in the system

2 Answers   ABB,

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in star-delta tranformer,if the input of star connection is 400/7v 3 kva then what is the output of delta connection?

0 Answers   Elicon,

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What is MODBUS Controller Used for BMS Mointoring???

2 Answers   Emerson,

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What is the basic difference between directional and non directional over current protection?

1 Answers  

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why in india the voltage generate multiply by 11,,,like 220v,440v,11kv,33kv,66kv,220kv,

3 Answers   NTPC, Servotech, Tata Power,

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what happen if any one phase of a slipring induction rotor winding is open?is it start or won't?

2 Answers   Aurobindo, Hetero,

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what do you mean by synchronous speed of a three phase induction motor?

5 Answers   FlexPoint,

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In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

0 Answers   Kaytech,

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wt wil happen if a 120kv line is grounded

4 Answers  

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