Answer Posted / amit khamesra

Conventionally only PS class CT shall be used for unit
protections. But now a days, with the use of miro processor
based relays having facility of low impedance or biased
differential protection, 5P20 may be used as biasing in the
relay takes care of the unmatched characteristics of the
both side Cts.

A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

1013

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What is state space method ? Why its used ? Can it applicable on linear, non-linear, 1st order, higher order, homogeneous, non-homogeneous, open-loop , closed loops , stable & unstable systems ?

2025

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Is there any Electrical supervisor license which gives permit to work whole India rather than individual state??

1853

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which type of motor is used in automatic swing gate

1991

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Explain marx circuit.

1320

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There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

1879

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why on axial hitting up of air blast on hydrogen produced in oil circuit breaker,temperature rises of the core of the arc?

1950

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Approach of a cooling tower is the difference between temperatures of what factors?

1125

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How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

1063

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Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

6693

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Why space heater is required for each verical bus bar chamber? if one space heater is adequate or not for anti condensation?

2518

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what is a bus riser in power system and why it is used

46156

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what is the function of choke in the flourcent tube lights and why the colour is in white mostly in flourcent tube lights

1922

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Can any body tell me the different types of LT cables & their application.

2091

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Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

4048

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