Answer / rumna

a ckt breaker consists of two parts- a fixed part and a moving part. under normal operating conditions these two parts remain in contact. when fault occurs the trip coils of the ckt breaker gets energised and the moving part are pulled apart by some mechanism thereby opening the circuit.

12.5 KVAR capacitor 440V gas filled, Its used for windmill purpose, How can i know about microfarad value for this capacitor

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sir i am fresher.can you please tell me how can i get certificate of competency as electrical supervisor.

1 Answers   ONGC,

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Is a d.c.compound motor is use as a booster? how?

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In siemens PLC, why do we want to move the data ?

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how can we calculate that how much capacitor is needed for a system to increase the pf?

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how much current and power in watts can be carry by 2.5^2mm cu wire and 4 core 10^2mm Al cable?

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why fuse is not used in neutral...

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why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation

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how can I improve the current at same voltage? if yes is there any circuits?

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how does calculate loss correction factor in transformer

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How the size of transformer decreases if we increases the frequency?

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what may the reason for vector shift in a generator?

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