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Power supply issues.
Panel of Yokogawa CS1000 system.
Power supply: 110 VAC from a UPS has floating neutral.
Three wires are terminated in the panel.
two of them carry the AC supply the third is the earth.
Problem: on checking the voltages between individual AC supply wires and the earthing wire it was observed that two different voltages exist, 48VAC and 64VAC. of course between the two supply wires the voltage is 112VAC.
is this imbalance normal or does it have any ill effect on the system.
regards,
Najmuddin
Panel of Yokogawa CS1000 system.
Power supply: 110 VAC from a UPS has floating neutral.
Three wires are terminated in the panel.
two of them carry the AC supply the third is the earth.
Problem: on checking the voltages between individual AC supply wires and the earthing wire it was observed that two different voltages exist, 48VAC and 64VAC. of course between the two supply wires the voltage is 112VAC.
is this imbalance normal or does it have any ill effect on the system.
regards,
Najmuddin