ABB Relion 670 Series Technical Reference Manual page 182
Line differential protection ansi
Hide thumbs
Also See for Relion 670 Series:
- Technical manual (1432 pages) ,
- Applications manual (944 pages) ,
- Technical reference manual (752 pages)
Table of Contents
Advertisement
Section 6
Impedance protection
176
RFPG
R1+Rn
X1+Xn
RFPG
RFPG
R1+Rn
ANSI05000661 V3 EN
Figure 75:
Characteristic for phase-to-ground measuring, ohm/loop domain
X
(Ohm/loop)
RFPG
=
Xn
=
Rn
j
j
n
n
R
RFPG
X1+Xn
RFPG
ANSI05000661-3-en.vsd
1MRK505222-UUS C
X0-X1
3
R0-R1
3
(Ohm/loop)
Technical reference manual
Advertisement
Table of Contents
