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ratan.chakravorty
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Join Date: Jul 2009
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Power Factor

07/24/2009 3:44 AM

Explain what is power factor.How is it controlled for maximum efficiency of multiple number of DG sets running in the sub ststion?
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PWSlack
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#1

Re: Power Factor

07/24/2009 3:52 AM

Apart from cable sizing and breaking cast iron baths up, it is CR4's most popular topic.

Link.

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sb
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#2
In reply to #1

Re: Power Factor

07/24/2009 4:24 AM

Along with

50Hz-60Hz ?

Weight of MS beams ?

Why the generation is in multiples of 11 ?

Home work questions (look to be one here)

BTW:

a) Substation as far as I know do not have DG sets.

b) The power factor improvement has got nothing to do with number of DG sets- well not immediately, except in case of miscalculations and instability in the system.

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PWSlack
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#4
In reply to #2

Re: Power Factor

07/24/2009 6:22 AM

Quite.

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Simon Wan
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#3

Re: Power Factor

07/24/2009 5:28 AM

It's a home work.

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mayt2u
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#5

Re: Power Factor

07/25/2009 3:49 AM

What's a DG? (Dog Gone? Done Good? Diesel Generators???) Load? Hz? Lead Lag? Voltage? Amps? Location? KVA? KVR? Moon-rise time?? Sunset time? Tide high times?? Low tide?? Size of your shirt in metric!!!..... and power factor is based on the amount of current used by a motor over what is apparently being used by a motor of lagging current. It's kind of an efficiently thing. Degree angle of lag Cosine θ = P.F. You can run your gen sets with a certain degree of lead or add a set of capacitors.

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