Page A–20
DuRApulse GS4 AC Drive User Manual – 1st Ed, Rev A - 10/20/2017
Appendix A: Accessories
line reaCTor appliCaTions and Wiring ConneCTions
inpuT side of aC drive
When installed on the input side of the GS4 drive, a line reactor will reduce line notching, current
peaks, voltage spikes and surges from the incoming line, as well as reduce the available short
circuit current. A line reactor will also reduce harmonic distortion from the GS4 drive onto the line.
The line reactor is installed in front of the GS4 drive as shown.
GS4 Drive
C1
T1
T2
T3
A2
B2
C2
A1 L1
B1
L2
L3
Reactor
Incoming power and
external circuit protection
provided by customer
Please refer to "Chapter 2: Installation and Wiring" for detailed wiring information for the GS4 drive.
ouTpuT side of aC drive
When installed on the output side of the GS4 drive, line (load) reactors help to protect the GS4
drive from short circuits at the load. Voltage and current waveforms from the GS4 drive are
enhanced, reducing motor overheating and noise emissions.
GS4 Drive
C1
A2
B2
C2
A1T1
B1
T2
T3
Reactor
Please refer to "Chapter 2: Installation and Wiring" for detailed wiring information for the GS4 drive.
Single phase line reactors should NOT be installed on the output side of an AC Drive. Use only
three-phase reactors on drive outputs, and only for three-phase motors.
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