Hitachi Relion 670 Series Commissioning Manual page 120

Section 11
Testing functionality by secondary injection
Test point
4
5
6
7
8
9
10
11
12
13
Table is used in conjunction with figure .
(2 x X1set+X0set)/3
25% of RFPEZx
ANSI05000369 V3 EN-US
Figure 36:
Table is used in conjunction with figure .
114
Reach Set value
X 0.5 x X1
set
R 0.5 x R1 + RFPPZx/2
set
X RFPPZx/2 x tan (LdAngle)
R RFPPZx/2
X RLdFw x tan (LdAngle)
R RLdFw
X 0
R RLdFw
X –0.8 x RLdFw/2 x tan(AngDir)
R 0.8 x RLdFw/2
X –0.4 x RLdFw x tan(AngDir)
R 0.4 x RLdFw
X 0.5 x X1
set
R 0.5 x X1 / tan(AngNegRes)
set
X 0.8 x X1
set
R 0.8 x X1 / tan(ArgNegRes)
set
X 0.5 x X1
set
R 0.5 x R1
set
X 0
R 0.5 x RFPPZx
X
2
1
11
10
12
9
8
50% of RFPEZx
alt. 80% of
RFPG
RFPG (Load
encroachment)
Distance protection characteristic with test points for phase-to-ground measurements
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80%
3
50%
4
5
ArgLd
6
(Ω /loop)
R
7 13
ArgDir
ANSI05000369-3-en.vsdx
1MRK506371-UUS Rev. M
Line distance protection REL670
Commissioning manual