X
R
ArgDir
ArgNegRes
ZPP
ZRevPP
UL1L2
ϕ
IL1L2
en06000469.eps
IEC06000469 V1 EN
Figure 69:
Operation characteristic for reverse phase L1-to-L2 fault
Phase-to-earth fault
Mho
The measuring of earth faults uses earth-return compensation applied in a
conventional way. The compensation voltage is derived by considering the influence
from the earth-return path.
For an earth fault in phase L1, the compensation voltage Ucomp can be derived, as
shown in Figure
Section 7
1MRK502052-UEN B
Impedance protection
188
Technical manual
Содержание Relion REG670
Страница 1: ...Relion 670 series Generator protection REG670 2 0 IEC Technical manual ...
Страница 2: ......
Страница 44: ...38 ...
Страница 58: ...52 ...
Страница 80: ...74 ...
Страница 106: ...100 ...
Страница 482: ...476 ...
Страница 548: ...542 ...
Страница 570: ...564 ...
Страница 600: ...594 ...
Страница 608: ...602 ...
Страница 630: ...624 ...
Страница 862: ...856 ...
Страница 1094: ...1088 ...
Страница 1226: ...1220 ...
Страница 1250: ...1244 ...
Страница 1297: ...1291 ...