why steady state stability limit is greater than transient stability limit ? How it can be explained ?

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draw the block diagram of fire alarm?

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Is AC Current Scalar or Vector Component?

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Why can't we parallel the secondary circuits of two voltage transformers?

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what is power frequency withstand and impulse withstand of a circuit breaker?

2 Answers   Power Grid,

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what will happen if the bus PT fuses are accidently removed from the circuit in 6.6kV feeder?

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Why do you have to use Protecion relay with the function MTB ( Mechanical Trip Button ) for electrical system.

0 Answers   DT Technologies,

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AMF (auto mains failure) control for DG sets at home.

1 Answers  

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please give some hindalco placement papers for written exam

0 Answers   Hindalco,

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

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Electrical breakdown strength of an insulating material depends on............?why because?

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what is an unbalance in acircuit? in a three phase 3wire circuit how an unbalance will come? in a three phase four wire system how an un balance is coming?

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