Answer Posted / joel q.

Ex. If your load is 100KW @ 0.9 power factor.

Your KVAR load is:

KVAR = 100*Tan((arccos0.9))

How calculated single phase induction motor req. Capacitor?

1521

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What is the mechanism of WTI

1737

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What happens if we run alternator on under frequency? 

2048

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who can measure the size of power cable?

2094

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What is an automatic controller?

1091

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Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.

2098

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what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

2045

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A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .

2573

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how to select proper cable for ct wiring so that drop within the limit.

1919

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HOW DO I CALCULATE THE SETTINGS FOR THE DIFFERENTIAL PROTECTION OF A 12kV/6.6kV, 6MVA,DYN11 XMER WITH PRIMARY SIDE CTR 400/1 AND SEC SIDE CTR 600/1?

2541

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What is meant by analogous system?

1216

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Briefly describe your ideal job?

2923

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Phase control and integral control are used for?

2252

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What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

2017

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1.Can we use 6.6/11KV 300sq mm xlpe 3core cable for LT use (415 Volt). 2. If we use it for LT then what is the current rating

1696

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