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to identify deviations unique to your meters. On the inverter's input side, measure voltages
across terminals R-S, S-T, and R-T. At the inverter's output terminal block, measure voltage
across terminals U-V, V-W, and W-U. See Figure 2.9 for the locations of these terminals on the
inverter's main chassis.
Recommended voltmeters:
For the inverter's input end: moving-iron voltmeter (
~
)
For the inverter's output end: rectifying voltmeter
(-£>+-)
Taking periodic temperature readings of the inverter at start-up, run, and shutdown mode is also
an effective way to detect early signs of trouble before it develops into a major problem, thus
reducing system downtime.
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