how to calculate cable size for the motor

2 Answers  

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what is load vs Torque curve & why it is used?

0 Answers  

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what is power factor ?

12 Answers   KSEB,

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How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

0 Answers  

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Why DC exitation to AC Generator? Why not AC?

2 Answers   Equate,

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Any link for Electrical objective type questions ?

0 Answers  

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Please define ampere?

0 Answers  

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why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

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When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<

0 Answers   Lupin,

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What is the ladder circuit?

1 Answers   Mitharg Information Systems,

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WHy neutral to ground trips when neutral touches the ground

1 Answers  

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when current lags behind voltage how does it affect the circuit.In other words what is the significance of lagging current?

3 Answers  

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