Chapter 1 IntroductionC2000 Series
1-6
3 Grounding at one end in a single-phase
configuration
L
N
4 No stable neutral grounding in a three-phase
autotransformer configuration
L
L2
L3
L1
L2
L3
RFI jumper can be used
Internal grounding through RFI capacitor, which reduces
electromagnetic radiation. In a situation with higher
requirements for electromagnetic compatibility, and using a
symmetrical grounding power system, an EMC filter can be
installed. As a reference, the diagram on the right is a
symmetrical grounding power system.
L2
L3
L
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