ANSI05000149 V1 EN-US
Figure 70: Connection of polarizing voltage from an open (ANSI-broken) delta
The different steps can be described as follows.
Step 1
M15282-123 v6
This step has directional instantaneous function. The requirement is that overreaching
of the protected line is not allowed.
ANSI05000150_2_en.vsd
67
N
One- or two-phase ground-fault
67N
ANSI05000150 V2 EN-US
Figure 71: Step 1, first calculation
1MRK 511 401-UUS A Section 8
Current protection
Bay control REC670 2.2 ANSI 179
Application manual
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