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Power Limit Solution for Grid-Tied PV Inverters User Manual V1.0-2022-09-15
2.1 Single-Phase Inverter + CT90 Networking
No. Parts Description
1 Inverter • Applicable inverters are DNS series, XS series, MS series and NS series.
• It is only applicable to install one inverter in the system, not for multiple inverters in parallel.
2 CT90 You can purchase CT from GoodWe with a standard length of 5 meters. Or select one with 30 meters in
length. The cable length of CT depends on the actual distance between the inverter and the entry point of the
distribution board.
3 Load The load current shall be less than 90A.
WARNING
1. Make sure the CT direction is right during installing. If CT is installed reversely, the inverter will be triggered with an alarm and
unable to realize the power limit function.
2. The appearances of the inverter and its communication port for CT connection vary according to dierent types. Please refer to
the related inverter’s user manual or quick installation guide for specic CT wiring.
3. CT shall be snap tted on Cable L. Do not t it on Cable N.
Wiring Description
Parts Description
-
+
CT+
CT+
CT-
CT-
K
L
N
L
Inverter
Distribution Board
Load
Utility Grid
PV String
CT90
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