Table of Contents
Advertisement
Section 11
Testing functionality by secondary injection
Test point
P26
P27
P28
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.
Testing the power swing detection logic ZMBURPSB (68)
Preconditions
The following output signals shall be configured to binary outputs: ZOUT, measured impedance within
outer impedance boundary and ZIN, measured impedance within inner impedance boundary and
PICKUP, power swing detection.
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 shown in Figure 24.
2.
Set OperationLdCh to On and set timers tP1, tP2, tW and tH to their default values.
3.
Enable the input signal REL1PH to detect the power swing in one of the three phases.
4.
The test points that are to be considered for the power swing detection are shown in Figure 24.
86
R
-R1FInRv
-0.8 * R1FInRv
-R1FInRv
© 2017 - 2022 Hitachi Energy. All rights reserved
X
Comment
0.0
(0.8 * -R1FInRv + ∆Rv) *
tan (ArgLd)
0.8 * X1InFw
Phasor measurement unit RES670
1MRK 511 409-UUS Rev. K
If OperationLdCh = Off
GUID-E19CFFAA-3853-4895-A149-32F6E78B2C69 v1
Commissioning manual
Advertisement
Table of Contents
