Step 3: Voltage Rating Check/Adaptation And Phase Rotation Check - ABB PQFS Installation, Operation And Maintenance Instructions

WARNING: Failing to terminate the communication bus properly will lead to equipment
malfunction and equipment damage.
8.4 Step 3: Voltage rating check/adaptation and phase rotation
check
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The active filter nominal voltage setting must be adapted to the actual network
voltage by adjusting the power supply connection of the control voltage (Cf.
Figure 14, wire 'N'). Ensure that the filter panel is isolated upstream before
changing the power supply connection of the control voltage.
WARNING: The tap setting of the auxiliary transformer's primary must be
adapted according to the network voltage to avoid a too high or too low
auxiliary voltage. If the tap setting for your network voltage is not available,
then choose a tap just above the network voltage present (e.g. for 390V
network choose 400V tap setting). Excessive (auxiliary) voltage levels will lead
to filter damage.
Note that in addition to configuring the unit hardware for a certain voltage range,
the network voltage also has to be set up in the filter controller software
(commissioning window).
WARNING: The PQFS is able to operate on networks where the supply voltage is
up to 10% higher (inclusive of harmonics but not transients) or lower than the
voltage range it is set up for. Since operation at the upper limits of voltage and
temperature may reduce its life expectancy, the PQFS should not be connected
to systems for which it is known that the overvoltage will be sustained
indefinitely.
−
The voltage phase rotation at the active filter incoming power supply terminals
must be clockwise (L1 (R,U) -> L2 (Y,V) -> L3 (B,W) -> L1 (R,U)).
WARNING: Applying voltage to the filter to check the phase rotation may only
be done after ensuring that the network voltage level is acceptable for the filter
operation and after it has been found that the filter is not mechanically nor
electrically damaged.
When power is supplied to the active filter terminals, the unit will automatically
do a phase rotation check in the master unit. If the phase rotation is wrong the
filter will show the message 'ACK. FAULT' on the PQF-Manager 'Welcome' screen.
The filter will refuse to start and a message indicating wrong phase rotation will
be stored in the filter event log (Cf. Section 7.10.3)
Manual Power Quality Filter PQFS  Commissioning instructions 145