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Recent questions tagged grade-12

Solved asked Aug 17, 2016 in Grade 12 by Admin Master (629k points) 125 views tagged:
Define Kilo-watt hour meter.
In a three-phase supply system the two-wattmeter method was used to measure the input power to an inductive load which has a power factor of 0,8. The values ... 4KW COS O = 380 V Calculate the:        Total input power    Line current
Given: Il = 25 A S = 20 kVA Calculate the: Line voltage Phase voltage