Contactor Type For Different Unit Ratings; Optional Surge Arrester Circuit (Ce Version Only) - ABB PQFM Instruction Manual

The internal power circuit protection characteristics for cULus filters are given in
23.
Table 23: Power circuit fuse characteristics for PQFM filters (cULus version)
Nominal Power circuit fuse
type
network
voltage (Vrms)
Class J Time delay
208 £ Ue £ 480
Class J Time delay
480 < Ue £ 600
Remark: (a) fuse short circuit current capability
The control circuit fuses characteristics for cULus versions of PQFM active filter are
given in Table 24.
Note: for CE versions, fuses are optional items.
Table 24: Control circuit fuse characteristics for PQFM filters (cULus version)
Nominal Control circuit
fuse type
network
voltage (Vrms)
Class C
208 £ Ue £ 480
Class C
480 < Ue £ 600
Remark: (a) fuse short circuit current capability
6.7.3

Contactor type for different unit ratings

All PQFM units incorporate a main contactor. Depending on the filter rating, a different
contactor type may be used.
Unit rating (Arms)
70
100
130
150
Central connection in cable entry
cubicle
6.7.4

Optional surge arrester circuit (CE version only)

When the filter is equipped with a surge arrester circuit (optional), this circuit has its
own fuse protection with following characteristics:
Table 26: Surge arresters circuit (optional) protection fuses (CE version)
Nominal Surge arresters
network circuit protection
voltage (Vrms) fuse type
208 £ Ue £ 480 Size 0, gG/Gl, with
striker
Remark: (a) fuse short circuit current capability
Irms fuse
(Arms)
175
175
Irms fuse
(Arms)
6
6
Table 25 details the contactor type.
Table 25: Contactor type for different unit ratings
Associated main contactor
ABB UA 95
ABB UA 95
ABB UA 95
ABB UA 110
Contactor in every power stage cubicle according to
cubicle rating
Irms fuse
(Arms)
125
Manual Power Quality Filter PQFM ç Electrical design and installation 53
Rated Voltage (Vrms)
Isc (a) fuse
(kA) at rated
voltage
200 600
200 600
Isc fuse Rated Voltage (Vrms)
(a)
(kA) at rated
voltage
200 600
200 600
Rated Voltage (Vrms)
Isc (a) fuse
(kA) at rated
voltage
120 500
Table