. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

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What is LCI drive & how does it work & why it is used?

1 Answers   EIS, ONGC,

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what is the difference withbeen lighting capacitor and motor capacitor?

2 Answers  

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If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

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what is the formular for the calculation of CT'S when installed as part of a electrical installation so the correct meter is used

2 Answers  

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when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil

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how can a transformer test by megger?

1 Answers  

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how induction generator generated the power without excition like syncronous generator.

3 Answers  

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how to calculate voltage drop and followed by cable calculation?is there avail in formula?

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What is the latest generation of circuit breakers called?

2 Answers   Focus, Oil India,

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what the function breaker failure scheme, how is it operated

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Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.

12 Answers   ACC, JLL, ZETDC,

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