X
R
ArgDir
ArgNegRes
ZPP
ZRevPP
VAB
ϕ
IAB
en06000469_ansi.ep
ANSI06000469 V1 EN-US
Figure 102: Operation characteristic for reverse phase A-to-B fault
Phase-to-ground fault
SEMOD154224-283 v2
Mho
SEMOD154224-120 v5
The measuring of ground faults uses ground-return compensation applied in a conventional way.
The compensation voltage is derived by considering the influence from the ground-return path.
For a ground fault in phase A, the compensation voltage Vcomp can be derived, as shown in Figure
.
Section 7
1MRK 502 066-UUS B
Impedance protection
226
Technical manual
Содержание Relion 670 series
Страница 1: ... RELION 670 SERIES Generator protection REG670 Version 2 1 ANSI Technical manual ...
Страница 2: ......
Страница 48: ...42 ...
Страница 62: ...56 ...
Страница 182: ...176 ...
Страница 692: ...686 ...
Страница 726: ...720 ...
Страница 1014: ...1008 ...
Страница 1242: ...1236 ...
Страница 1362: ...1356 ...
Страница 1386: ...1380 ...
Страница 1422: ...1416 ...
Страница 1431: ...1425 ...