Answer / 7anoter4

Ampere Frame [AF] it is the rating breaker current [maximum
current which the breaker will withstand for a long
time].Ampere trip [AT] it is the current set to trip the
circuit [usually from 60% up to 100% of the AF].

what is encoder & its use?

1 Answers   ACC,

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what is H.T?specify the range?

6 Answers  

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a distribution transformer(3 phase)supplying 440volt per phase.now suppose one of phase voltage(230volt) becomes zero.what will be the cause ?

3 Answers  

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It is used or not HT cable single core 630 sqmm in LT 3 phase capacitor bank which is used in PCC(power control center).

1 Answers  

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How to calculate the rating of ELCB OR RCCB for an equipment?

2 Answers  

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in telecom we are using neutral?

1 Answers  

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Draw an S.L.D of the main panel for a hospital, showing meter position. Essential loads are: 1) Equipment load 100 KW 2) Critical load 500 KW 3) Life AID Safety load 400 KW 4) NON-Essential load 200 KW 5) Other service loads 200 KW Calculate and suggest the size of the transformer, size of main cable, capacitor bank, and calculate the capacity of an emergency load having above first three mentioned loads is supplied by an emergency generator.

0 Answers   FEWA, HMK,

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What sort of protection scheme do you suggest for the protection of a 10 HP motor?

1 Answers   Chevron,

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what is the preventive maintence for ht panels and busbars and vcb abd acb's.

0 Answers   Future Group,

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why we are using2 wave trap in a feeder?

1 Answers  

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There is 3phase power cable from 1 point to the other point which is 100m away. Two point equipped with power meter and recorded 1st point is 205kW while the 2nd is 202kW and each phase average carry 400amps. To calculate the resistance of the 3phase power cable, is the formula using will be P=I2R?

3 Answers  

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A synchronous machines has higher capacity for (1) Leading power factor (2) Lagging power factor (3) Does not depend upon the power factor of machine (4) None of the above

2 Answers   JSW,

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