What does this figure represent

Posted on 2014-01-08 14:42:00 in Engineering by CHARLES_XAVIEOR

A watt meter reads 5.54 kw when its current coil is connected in red phase and its potential coil is connected between the neutral and red phase of symmetrical 3-phase system supplying a balanced load of 30A at 400 volts. What will be the reading of the instrument if the current coil connections remain unchanged but the potential coil be connected between blue and yellow phase? What does this figure represent

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