Overload Capability; Hardware Principles; Basic Principles - INVT Goodrive800 Pro Series Hardware Manual

Goodrive800 Pro Series Active Rectifier Hardware Manual
Heavy overload application: I

minutes, the overload with the current of 150%*I

2.4 Overload capability

Based on the light overload continuous run current (I
of the rated current. See Figure 2-3.
Based on the heavy overload continuous run current (I
of the rated current. See Figure 2-4.

2.5 Hardware principles

2.5.1 Basic principles

The active rectifier, a four-quadrant rectifier system, mainly consists of active rectifier filter unit and active
rectifier unit. It is used with the pre-charge circuit and control unit. The intermediate DC voltage can supply
the subsequent inverter modules. One or more inverter modules can be installed.
The active rectifier converts 3PH AC voltage into DC voltage, and the DC voltage can supply the subsequent
inverter modules to drive motors. It can also feed the regenerative energy of the motor back to the grid. The
active rectifier filter unit, which is the filter, is used to suppress input or regenerative current harmonics.
The active rectifier mainly consists of AC fuse, active rectifier filter unit, active rectifier unit, and DC fuse.
Figure 2-5 shows the simplified main circuit diagram.
202305 (V1.0)
indicates the continuous running current at heavy overload. Every 5
Hd
Figure 2-3 Light overload application
Current (A)
Short-time overload current 110%I
Light overload rating I
60s
Figure 2-4 Heavy overload application
Current (A)
Short-time overload current 150%I
Heavy overload ratingI
60s
300s
can last for 1 minutes at 40℃.
Hd
), the active rectifier can keep running for 60s at 110%
Ld
LD
Rated current I
LD
), the active rectifier can keep running for 60s at 150%
Hd
HD
Rated current I
HD
60s
Product overview
(Continuous)
N
Time (s)
(Continuous)
N
Time (s)
7