Hitachi RED670 Commissioning Manual page 130

Section 11
Testing functionality by secondary injection
Testing the operating characteristics
Preconditions
The following output signals shall be configured to binary output available: ZOUT, measured
impedance within outer impedance boundary and ZIN, measured impedance within inner impedance
boundary.
1. Set X1InFw, R1LIn, X1InRv, R1FInFw, R1FInRv, ArgLd, RLdOutFw, RLdOutRv, kLdRFw and
kLdRRv to values that are in accordance with the selectivity plan and the corresponding
operating characteristic is as shown in Figure 37.
2. Set OperationLdCh to On.
3. The test points that are to be considered for the measurement accuracy of set resistive and
reactive reaches for outer and inner boundaries are shown in Figure 37, Table
IEC18000101 V1 EN-US
Figure 37:
Where,
ΔFw =
ΔRv =
RLdInFw =
RLdInRv =
X1OutFw =
X1OutRv =
124
X1OutFw
P14
P28
D
ArgLd
Rv
P27
P13
P12
P26
D
Rv
P10
P24
P23
P9
D
Rv
Proposed test points to measure the outer and inner boundaries of operating
characteristics
RLdOutFw – (kLdRFw *RLdOutFw)
RLdOutRv – (kLdRRv *RLdOutRv)
kLdRFw * RLdOutFw
kLdRFw * RLdOutFw
X1InFw + ΔFw
X1InRv + ΔRv
© 2017 - 2022 Hitachi Energy. All rights reserved
jX
X1InFw
P1
P15
R1FInRv R1FInFw
D
Rv
D
Fw
P11 P25 P18 P4
P20
RLdInRv
RLdInFw
RLdOutFw
RLdOutRv
P22
P8
D
Rv
1MRK 505 378-UEN Rev. K
GUID-07387F60-E7E8-4B72-8442-90ADF0529269 v1
35 and Table 36.
R1LIn
D
Fw
P2
P16
D
Fw
ArgLd
P17
P3
D
Fw
P19
P5
R
D
P6
Fw
D
Fw
P21
P7
X1InRv
X1OutRv
IEC18000101-1-en.vsdx
Line differential protection RED670
Commissioning manual