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3.1. Location of the main PQFI components
3.1.1.
PQFI active filter bottom part components
Figure 6
shows a picture of the PQFI bottom part in CE version and
version.
The component identification is given in the table below.
Item Description
5
Motorized circuit breaker (MCB)
6
Fuse holder auxiliaries circuit
7
Auxiliary voltage transformer
8
DC voltage power supply 24V (behind transformer)
9
Preload contactor
10
CT connection terminal
11
PWM reactor
12
Output reactor
13
Earth bar
14
Surge arrester protection (for cULus version only)
Note:
– In CE versions of PQFI, EMC compliance circuitry is standard present
– In cULus versions of PQFI, EMC compliance circuitry is optional
3.1.2.
PQFI active filter middle part components
Figure 8
shows a picture of the PQFI middle part.
The component identification is given in the table
Item Description
15
IGBT inverter with DC capacitors
16
IGBT heat extraction fans
17
DC capacitor discharge resistors
18
Terminals for heat extraction fans
The PQF Main controller board has connectors which are predominantly pre-wired for use within the filter. However, it
also contains a DIP-switch used to set the identification address and CAN bus connectors for use in a multi-module
filter arrangements.
The main controller board is shown in
STATUS
Approved
Table 3: PQFI bottom part description
below.
Table 4: PQFI middle part description
Figure 13.
SECURITY LEVEL
Public
Figure 7
shows the PQFI bottom part in cULus
(Figure 6
and
Figure
Circuit diagram designation
Q1
Q2
T1
U2
K1
X21
L12
L11
-
F8-F9-F10
(Figure 8)
Circuit diagram designation
U1
M1, M2, M3
R5, R6
X23
DOCUMENT ID
9AKK107045A4703
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