Our plant has voltage system 415V; 3Ph; 3W and located on offshore (Floating Platform). The Ground and Neutral is common.
At main busbar, I measured the voltage between Phase A and Ground = 5 V; Phase B and Ground = 415 V; Phase C and Ground = 415 V. The voltage reading should be 240 V.
One day before measuring, one of the feeders was hit by lightning ?
What we have to solve the problem?
Many thank.
At main busbar, I measured the voltage between Phase A and Ground = 5 V; Phase B and Ground = 415 V; Phase C and Ground = 415 V. The voltage reading should be 240 V.
One day before measuring, one of the feeders was hit by lightning ?
What we have to solve the problem?
Many thank.