Answer / ram

Pf is the cosine of the angle by which the current leads
voltage ( or vice versa as cos(-th)=cos(th)) .So in order to
find the PF connect an AC power supply , a wattmeter and
ammeter in series with the cap with a voltmeter across it .
The real power measured by the wattmeter divided by
current*Voltage gives the power factor. Ideally the pf is 0
for cap as current leads voltage by 90

Answer / sakthipriya m

Transfomer rating -
KVA rating of the transformer
Voltage rating
Current rating

Scott connection is used for A 3-phase to 2-phase conversion B to achieve higher effciency C to save copper D to reduce harmonics

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we have total 1000hp motors we paid 7 laks rupees how to reduce power bill

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sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

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If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

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whycircuit breaker is not connected at the generator end where the capacity of the generator is more say 60MW, 100MW etc.

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why+ve is earthed in electrostatic precipitator in thermal power plant

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in a diesel generator is there any relation between AVR to fule system?

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Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

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when we put inducter in neuteral grounding of genrator.

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2 Answers  

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What is VCC?

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