Hitachi Relion 670 Series Commissioning Manual page 115

1MRK506371-UUS Rev. M
X1set
ANSI05000368 V2 EN-US
Figure 33:
Table 31:
Test point
1
2
3
4
5
6
7
8
9
10
Table continues on next page
Line distance protection REL670
Commissioning manual
X
2
1
11
10
12
9
8
25% of RFPPZx/2
50% of RFPPZx/2
RFPP/2
Distance protection characteristic with test points for phase-to-phase measurements
Test points for phase-to-phase loops A-B (Ohm/phase)
Reach Set value
X X1
set
R 0
X X1
set
R R1
set
X 0.8 x X1
set
R 0.8 x R1 + RFPPZx/2
set
X 0.5 x X1
set
R 0.5 x R1 + RFPPZx/2
set
X RFPPZx/2 x tan (LdAngle)
R RFPPZx/2
X RLdFwd x tan (LdAngle)
R RLdFwd
X 0
R RLdFwd
X -0.8 x RLdFwd/2 x tan( AngDir)
R 0.8 x RLdFwd/2
X -0.4 x RLdFwd x tan( AngDir)
R 0.4 x RLdFwd
X 0.5 x X1
set
R 0.5 x X1 / tan( AngNegRes)
set
© 2017 - 2023 Hitachi Energy. All rights reserved
80%
3
50%
4
5
ArgLd
6
(Ω/phase)
R
7 13
ArgDir
ANSI05000368-2-en.vsdx
Comments
Section 11
Testing functionality by secondary injection
109