Answer / rishi

Stability refers to the ability of power system to regain
synchronism after a fault.fault may be due to sudden
switching or lightning or due to overloads......

Answer / patel sahishnu

Power system stability means availibility of power without
interruption at predefined voltage and frequency.

suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current , the rating of motor is 1HP ?

5 Answers  

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what is the working principale of air circuit breaker ?

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Explain the operation of damper winding

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In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

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Name the instruments which run on DC?

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in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

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when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

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how rectifier transformer work in electroststic precipetatore(esp?

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What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

6 Answers  

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UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

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how can we calculate air compressure capacity

1 Answers  

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How many sprinklers should be in one pipe line?

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