Section 4
1MAC050144-MB C
Protection functions
140
615 series ANSI
Technical Manual
Figure 60:
Single-phase ground fault, phase A
In an example of the phasors in a two-phase short-circuit failure where the fault is between
the phases B and C, the angle difference is measured between the polarizing quantity V
AB
and operating quantity I
B
- I
C
marked as
φ
.
Содержание 615 Series ANSI
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