Commissioning Report - ABB PQFM Instruction Manual

Figure 100: CT connection guidelines for the case that a passive filter is installed
Further, when a passive filter and an active filter are installed on the same bus, it
is not recommended to select on the active filter the harmonics at or below the
tuning frequency of the passive filter. If these harmonics are selected, the SDP
function may stop filtering these harmonics temporarily resulting in a reduced
overall filtering performance.
- In installations where 2 non-compatible masters are connected to the same CT,
respect the following guidelines for best performance:
1. Select different harmonics on both units
2. If 1 above is not possible, put one filter in Mode 1 and the other filter in Mode 3
Note: 'Non-compatible'' master units are master units that cannot or are not
interconnected with the RJ45-communication cable.
Please do not forget to fill in the commissioning report for future reference.

8.11 Commissioning report

The commissioning report is designed to help the person in charge of the
commissioning.
Before installation and operation of the PQF, read the relevant sections of the
Instruction Manual.
Feeding
transformer Filter CTs
downstream of the active filter
Manual Power Quality Filter PQFM ç The PQF-Manager user interface 177
PQFx
Passive
filter
+ -