ABB Relion 670 series - Page 141

Test point R X Comment
P6 0.8 * (R1FInFw + ∆Fw) -0.8 * (R1FInFw + ∆Fw) *
tan (ArgLd)
P7 R1FInFw + ∆Fw -0.8 * X1OutRv
P8 0.0 -X1OutRv
P9 -(0.8 * R1LIn + R1FInRv +
∆Rv)
-0.8 * X1OutRv
P10 -0.8 * (R1FInRv + ∆Rv) -0.8 * (R1FInRv + ∆Rv) *
tan (ArgLd)
P11 -RLdOutRv 0.0
P12 -R1FInRv + ∆Rv 0.0 If OperationLdCh = Off
P13 -0.8 * (R1FInRv + ∆Rv) 0.8 * (R1FInRv + ∆Rv) *
tan (ArgLd)
P14 -(R1FInRv + ∆Rv) 0.8 * X1OutFw
Table 35: Testing points to measure the inner boundary
Test point R X Comment
P15 0.0 X1InFw
P16 0.8 * R1LIn + R1FInFw 0.8 * X1InFw
P17 0.8 * R1FInFw (0.8 * R1FInFw + ∆Fw) *
tan (ArgLd)
P18 RLdInFw 0.0
P19 R1FInFw 0.0 If OperationLdCh = Off
P20 0.8 * R1FInFw -(0.8 * R1FInFw + ∆Fw) *
tan (ArgLd)
P21 R1FInFw -0.8 * X1InRv
P22 0.0 -X1InRv
P23 -0.8 * R1LIn + R1FInRv -0.8 * X1InRv
P24 -0.8 * R1FInRv -(0.8 * -R1FInRv + ∆Rv) *
tan (ArgLd)
P25 -RLdInRv 0.0
P26 -R1FInRv 0.0 If OperationLdCh = Off
P27 -0.8 * R1FInRv (0.8 * -R1FInRv + ∆Rv) *
tan (ArgLd)
P28 -R1FInRv 0.8 * X1InFw
4. Change the magnitude and angle of three phase voltages to achieve the impedances at test points
P1, P2,…., P28.
5. For test points P1 to P14, observe the operation value for the signal ZOUT and compare the
operation value with the set value.
6. For test points P15 to P28, observe the operation value for the signal ZIN and compare the
operation value with the set value.
1MRK 504 165-UUS Rev. J Section 11
Testing functionality by secondary injection
Transformer protection RET670 135
Commissioning manual
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