we have consol make 3 phase servo stabilizer for cnc m/c.
while installing the earth neutral voltage is 1.7 volts at
stbilizer off condition and when stabilizer get on en
voltage reaches 4.8 volts (new earthing is done and neutral
is helthy condition all phase to neutral volts 440,442,441
v)why this happen.solution for cause.
how can we phase identification in a distribution line,how
we recognise that which phase is coming for a house hold
what is the difference beteen differential protection and over
current protection of an alternator