in three phase supply there are three phases (here R, y,
and z) and only one neutral.
the voltage between any one phase and neutral is 220.
and the voltage between remaining two phases is 440.hence
the 3 phase supply is 440
Can earth resistance be measured without connecting the
and should earthing connections be disconnected
What is the effect of connecting two cables of different
sizes in parallel with supply?
Thanks in Advance.
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