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Chapter2 Specifications and Selection
SVF-G7 Series Frequency Inverter Operation Manual
22
SVF-G7 Series frequency inverter, G37/P45KW~G400/P450KW all use external
DC reactor, (DC reactor usage: power grid harmonic suppression, to improve
the input power factor of the inverter.) Users could select the DC reactor
based on actual situation. Users need to remove the short circuit copper
bars between the main circuit terminals (+) and P when installation, then
the DC reactor could be connected between the (+) and P, there is no pole
between the reactor terminals and the inverter terminals (+), P. After
installing the DC reactor, the short circuit copper bars between (+) and
P short circuit is no longer used.
Table 2-5 Selection of SVF-G7 VFD External DC reactor
VFD POWER
(KW)
DC
Reactor
Configuration
Recommended
DC
Reactor
TYPE
Reactor
Rated
Current(A)
Notice
0.4
~
30
Without
external DC
reactor
terminals
Without
external
DC
reactor
terminals
37
~
55
Optional
external DC
reactor
SC-DCL150
150
For
the
method
of
external DC
reactor,
please
check
the
chapter 3
75
~
93
SC-DCL250
250
110
~
132
SC-DCL300
300
160
~
200
Standard
external DC
reactor
SC-DCL400
400
220
~
280
SC-DCL600
600
315
~
400
SC-DCL800
800
2.8 Frequency Inverter Daily Maintenance
2.8.1
2.8.1
2.8.1
2.8.1
Daily
Daily
Daily
Daily Maintenance
Maintenance
Maintenance
Maintenance
Many factors such as ambient temperature, humidity, dust, vibration will
casue the internal components aging and give rise to the occurrence of
potential faults or lessen the service life of the VFD. Therefore, it is
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