1MRK 511 401-UUS F
Rct
ANSI05000427 V2 EN-US
Figure 50: The high impedance principle for one phase with two current transformer inputs
Bay control REC670
Application manual
Rl
R
I>
Protected Object
VR
a) Through load situation
VR
b) Through fault situation
VR
c) Internal faults
© Copyright 2017 ABB. All rights reserved
Rl
VR
Rres
ANSI05000427-2-en.vsd
Differential protection
Rct
Section 7
119