This video introduces the formulae for power in an electric circuit, P=IxE, P=I^R, and P=E^/R. It also explains how P=I^R and P=E^/R are algebraically derived from P=IxE and Ohm’s Law.
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Search in section ‘Power Substations’ overhere:
https://electrical-engineering-portal.com/download-center/books-and-guides/power-substations
pls tell me power factor improvment formullas-: one induction motor 45 kw 415 volt ,3 phase, p.f is .80 now what can i improve p.f .80 to .90 . how many capacitor add in motor cerket .