ABB RED670 Commissioning Manual page 136

Line differential protection
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Section 11
Testing functionality by secondary injection
ΔRv =
RLdInFw =
RLdInRv =
X1OutFw =
X1OutRv =
Table 35:
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
Table 36:
Test point
P15
P16
P17
P18
P19
P20
P21
P22
P23
Table continues on next page
130
RLdOutRv – (kLdRRv *RLdOutRv)
kLdRFw * RLdOutFw
kLdRFw * RLdOutFw
X1InFw + ΔFw
X1InRv + ΔRv
Testing points to measure the outer boundary
R
0.0
0.8 * R1LIn + R1FInFw +
∆Fw
0.8 * (R1FInFw + ∆Fw)
RLdOutFw
R1FInFw + ∆Fw
0.8 * (R1FInFw + ∆Fw)
R1FInFw + ∆Fw
0.0
-(0.8 * R1LIn + R1FInRv +
∆Rv)
-0.8 * (R1FInRv + ∆Rv)
-RLdOutRv
-R1FInRv + ∆Rv
-0.8 * (R1FInRv + ∆Rv)
-(R1FInRv + ∆Rv)
Testing points to measure the inner boundary
R
0.0
0.8 * R1LIn + R1FInFw
0.8 * R1FInFw
RLdInFw
R1FInFw
0.8 * R1FInFw
R1FInFw
0.0
-0.8 * R1LIn + R1FInRv
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X
Comment
X1OutFw
0.8 * X1OutFw
0.8 * (R1FInFw + ∆Fw) *
tan (ArgLd)
0.0
0.0
-0.8 * (R1FInFw + ∆Fw) *
tan (ArgLd)
-0.8 * X1OutRv
-X1OutRv
-0.8 * X1OutRv
-0.8 * (R1FInRv + ∆Rv) *
tan (ArgLd)
0.0
0.0
0.8 * (R1FInRv + ∆Rv) *
tan (ArgLd)
0.8 * X1OutFw
X
Comment
X1InFw
0.8 * X1InFw
(0.8 * R1FInFw + ∆Fw) *
tan (ArgLd)
0.0
0.0
-(0.8 * R1FInFw + ∆Fw) *
tan (ArgLd)
-0.8 * X1InRv
-X1InRv
-0.8 * X1InRv
Line differential protection RED670
1MRK 505 378-UUS Rev. J
If OperationLdCh = Off
If OperationLdCh = Off
If OperationLdCh = Off
Commissioning manual

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