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CENTRIC User Guide, rel. 3.4
103
Figure 78: Voltage and current msmts. on the inverter output tab
2.
Return to the static switch measurements screen (“Status > STSW icon”). Compare the bypass
voltage measurements with the true mains power voltages. If the difference is greater than ±3 %,
perform static switch calibration.
3.
If the inverter is not synchronized to bypass, check the measured bypass frequency (Figure 79).
Verify that the setup of the nominal frequency and the frequency tracking range
(“Setup > System > Nominal settings” {Figure 80}) corresponds to the actual frequency at bypass
input. Correct the setup values if necessary.
Figure 79: Bypass frequency measured at the static switch
Figure 80: “Setup nominal values” screen
