Paralleling Principle - INVT Goodrive800 Pro Series Hardware Manual

Goodrive800 Pro Series Regenerative Rectifier Hardware Manual
Figure 2-5 Simplified main circuit diagram of the regenerative rectifier
Regenerative rectifier
filter unit
2
Regenerative
reactor
R
S
T
1
No.
1
Regenerative rectifier
2
Regenerative rectifier
3
4
Note: The AC fuse is not a component of the regenerated rectifier. You can choose to configure AC
fuses according to the actual application requirements.

2.5.2 Paralleling principle

The regenerative rectifier supports parallel use in L+2A8 frame structure, that is, one regenerative rectifier
filter unit is connected with two regenerative rectifier units, as shown in Figure 2-6. To meet the
requirements of greater capacity, the parallel pattern (L+2A8)*N should be used, where N cannot be greater
than 3. In parallel connection, ensure that the regenerative rectifier filter units have the same specifications
and regenerative rectifier units use the same software and hardware.
202308 (V1.1)
Regenerative rectifier
unit
Name
To protect against overload and short-circuit on the
AC fuse
regenerative rectifier unit side.
To suppress AC voltage and current harmonics.
filter unit
To convert AC current to DC current.
unit
To prevent backend short circuit from causing machine
DC fuse
burndown.
3
Description
Product overview
DC+
4
DC-
8