ABB Relion 670 Series Commissioning Manual page 138

Transformer protection
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Section 11
Testing functionality by secondary injection
X1OutFw =
Table 34: Testing points to measure the outer boundary
Test point
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
Table 35:
Test point
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
Table continues on next page
132
X1InRv + ΔRv
R
0.0
R1LIn + R1FInFw +
0.8 *
∆Fw
R1FInFw + ∆Fw)
0.8 * (
RLdOutFw
R1FInFw + ∆Fw
0.8 * (
R1FInFw + ∆Fw)
R1FInFw + ∆Fw
0.0
R1LIn + R1FInRv +
-(0.8 *
∆Rv)
R1FInRv + ∆Rv)
-0.8 * (
RLdOutRv
-
-
R1FInRv + ∆Rv
R1FInRv + ∆Rv)
-0.8 * (
R1FInRv + ∆Rv)
-(
Testing points to measure the inner boundary
R
0.0
R1LIn + R1FInFw
0.8 *
R1FInFw
0.8 *
RLdInFw
R1FInFw
R1FInFw
0.8 *
R1FInFw
0.0
R1LIn + R1FInRv
-0.8 *
R1FInRv
-0.8 *
RLdInRv
-
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X
Comment
X1OutFw
X1OutFw
0.8 *
R1FInFw + ∆Fw) *
0.8 * (
tan (
ArgLd )
0.0
0.0
-0.8 * (
R1FInFw + ∆Fw) *
ArgLd )
tan (
-0.8 *
X1OutRv
X1OutRv
-
X1OutRv
-0.8 *
R1FInRv + ∆Rv) *
-0.8 * (
ArgLd )
tan (
0.0
0.0
R1FInRv + ∆Rv) *
0.8 * (
tan (
ArgLd )
X1OutFw
0.8 *
X
Comment
X1InFw
X1InFw
0.8 *
R1FInFw + ∆Fw) *
(0.8 *
ArgLd )
tan (
0.0
0.0
R1FInFw + ∆Fw) *
-(0.8 *
ArgLd )
tan (
X1InRv
-0.8 *
-
X1InRv
X1InRv
-0.8 *
R1FInRv + ∆Rv) *
-(0.8 * -
ArgLd )
tan (
0.0
Transformer protection RET670
1MRK 504 165-UEN E
OperationLdCh = Off
If
If
OperationLdCh = Off
OperationLdCh = Off
If
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