ABB REG670 Commissioning Manual page 153

1MRK 502 073-UUS A
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062
Commissioning manual
• One phase-to-phase fault
• One phase-to-ground fault
The shape of the operating characteristic depends on the values of the setting
parameters.
The figures illustrating the characteristic for the distance protection
function can be used for settings with and without load encroachment.
The solid lines designate the diagram applicable when the load current
compensation is active. The solid line and all test points except 13 are
valid for this case.
When the load current compensation is inactive, the dotted lines and
test point 13 are valid. Test points 5, 6, and 7 are not valid for this
measurement.
1
11
X1
10
40% of RLdFwd
80% of RLdFwd
ANSI05000368 V1 EN-US
Figure 42: Distance protection characteristic with test points for phase-to-phase
measurements
Testing functionality by secondary injection
X
2
80%
3
50%
4
12
120°
a
5
6
R
7 13
9
c 20°
8
0.5 x RFPP
ANSI05000368-1-en.vsd
Section 13
(O/phase)
147