Answer / bijay

V = 4.44 F X PHI X N

TO INCREASE V AT F=50HZ,
SPEED OF GENERATOR IS INCREASED WHICH INTURN WILL INCREASE
THE FREQ. ALSO.
FOR THIS REASON DROOP CURVE IS FOLLOWED.WHICH PROVIDES A
STABLE SYSTEM.
FOR MORE EXPLANATION REFER BOOKS ON GENERATOR STABILITY

Answer / felixraj

it is necessary to maintain in all magnetic circuit to avoid
saturation.

Answer / gbs

V/f determine the overfluxing condition..
normally its used for over excitation condition in generator protion. if v/f increases core will saturate.

When testing an earthing connection, we use a 60 or 100 candle bulb with a phase connected direct from supply and the other wire to the new earthing provided.If the bulb glows then the earth is ok.Else earth connection is not Ok. So, why dont we can use all the home appliances taking a single wire from the phase and the return connection to Earth instead of return connection to neutral?

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