when a machine act as genartor and as motor?

2 Answers  

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What will happen if the field of synchronous generator is removed when it is in operation with no load?

3 Answers   HJ, UPPCL,

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WE are using a 63A MCCB(SIEMENS MAKE) for one of the feeder in LV substation panel.It is supplying to a lighting & power socket DB.Settings in the MCCB is Ir = 63 * 1 , Isd = 8 times of Ir , tsd = 0.5 sec( I2 t off). Sometimes this MCCB is tripping .But no trip in DB MCB. Can anybody tell me reason ? From where i can know about the MCCB settings?

5 Answers  

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what is the last range of mccb in amp?

2 Answers  

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my diploma certificate in my higher education college

0 Answers   Aastha Spintex,

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can we light the mercury vapour (tube light)with out a 1).starter and 2).choke in our homes if yes explain how?

5 Answers  

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what is used root two in single phase line?

1 Answers   DVC,

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how to calculate the megger values for motors and cables?

2 Answers   Adhunik,

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what is the merz prodution ? what is the turn to turn fault?

2 Answers   L&T,

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What is the cut-off rate?

0 Answers  

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What is the min and max ohmic value for earthing?

15 Answers   NewTek, Wipro,

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why star point of motor shall not be grounded?

8 Answers  

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