What is the formuala to calculate the rating of motor protection circuit breaker

0 Answers  

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how give earthing to shif and aeroplane which is away from earth?

1 Answers   ABC,

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AC covered area by ton calculation

2 Answers  

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How does a digital electronic meter work??????

0 Answers  

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what is the function of breather in a transformer

29 Answers   Areva, Bhel, RKM Powergen, Vijai Electricals,

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what is voltage

7 Answers   TCS,

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why the Parameters : Base Voltage & Maximum Voltage can't be equal in value in a VFD (Variable Frequency Drive) ? How much the base voltage would be lower than the maximum voltage ? If 400 V is the 3 phase output of a VFD ... then what should be the base voltage ? thanks a lot

1 Answers   Yaskawa,

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What is 100% protection of generator? Why 95% protection is used not 100%?

9 Answers   NTPC,

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IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE EQUIPMENTS IF EARTH GETS OPEN ON LOAD?

2 Answers  

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What is a transductor ?

2 Answers  

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Explain working of servo controlled voltage stabilizer.

3 Answers  

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why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

3 Answers   OEG,

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