Table of Contents
Advertisement
1MRK 505 378-UEN Rev. K
Test point
12
13
Table
21
(2 x X1set+X0set)/3
IEC05000369 V5 EN-US
Figure 24:
Table
22
Table 22:
Test point
1
2
3
4
5
6
Table continues on next page
Line differential protection RED670
Commissioning manual
Reach
Set value
X
0.5 x X1
set
R
0.5 x R1
set
X
0
R
0.5 x RFPP
is used in conjunction with figure 23.
X
2
1
11
10
12
9
8
25% of RFPEZx
50% of RFPEZx
alt. 80% of
RFPEZx
RFPEZx (Load
encroachment)
Distance protection characteristic with test points for phase-to-earth
measurements
is used in conjunction with figure 24.
Test points for phase-to-earth L3-E (Ohm/Loop)
Reach
Value
X
(2 x X1
+X0
set
R
0
X
(2 x X1
+ X0
set
R
2 x R1
+ R0
set
X
0.8 x (2 x X1
R
0.8 x (2 x R1
+RFPE
set
X
0.5 x (2 x X1
R
0.5 x (2 x R1
RFPE
set
X
0.85 x RFPE
R
0.85 x RFPE
X
RLdFwset x tan(ArgLdSet)
R
RLdFw
set
© 2017 - 2022 Hitachi Energy. All rights reserved
Comments
Only used when RLdFw > 0.5 x RFPP
80%
3
50%
4
5
6
R (Ohm/loop)
7
13
ArgDir
IEC05000369-5-en.vsdx
Comments
)/3
set
)/3
set
)/3
set
+ X0
)/3
set
set
+ R0
)/3
set
set
+ R0
)/3
set
set
+R0
)/3 +
set
set
x tan(ArgLdset)
ArgLd = angle for the maximal load transfer
set
Section 11
Testing functionality by secondary injection
101
Advertisement
Table of Contents
