ABB REC650 - Direct Grounded System

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ANSI07000190-1-en.vsd
ANSI07000190 V1 EN
Figure 64: Ground fault in Non-effectively grounded systems
7.3.3.3 Direct grounded system
In direct grounded systems, an ground fault on one phase indicates a voltage collapse in
that phase. The two healthy phases will have normal phase-to-ground voltages. The
Section 7 1MRK 511 286-UUS A
Voltage protection
160
Application manual