Table 27:
Test points to measure the boundary of a measuring zone in primary ohms
Test point
R
X
Comment
P1
0
XFw
P2
RFw
XFw
P3
(0.8
∗
RFw
) +
RFFwZx
0.8
∗
XFw
P4
0.8
∗
RFFwZx
0.8
∗
RFFwZx
∗
tan(
ArgLd
)
P5
RLd
0
P6
RFFwZx
0
If
LEModeZx
=
Off
P7
0.5
∗
RLd
-0.5
∗
RLd
∗
tan(
ArgDir
)
P8
-0.5
∗
RFRvZx
XFw
P9
-0.8
∗
XFw
∗
tan(
ArgNegRes - 90
)
0.8
∗
XFw
4.
Change the magnitude and angle of voltage to achieve impedances at test points P1, P2,...,.P9.
5.
The test points P7 and P9 are intended to test the directional lines of impedance protection and
are used to find the directional accuracy.
6.
For each test points, observe that the start output signals, START, STZx and STNDZx are
activated.
7.
Trip signals TRIP and TRZx appears after a set delay time of
tZx
.
10.4.4.3
Completing the test
GUID-5C822F5B-16A3-41A4-8586-53D2A4D3719E v1
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore
connections and settings to their original values, if they were changed for testing purposes.
10.4.5
Underimpedance protection for railway transformers ZGTPDIS
GUID-2DE57C53-0D98-4C7D-83F4-FEA15C369A55 v2
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to verify settings"
Values of the logical signals for ZGTPDIS are available on the local HMI under
Main menu /Tests /
Function status /Impedance /ZGTPDIS (21T, Z<) /ZGTPDIS:x
, where x = 1, 2. The Signal
Monitoring in PCM600 shows the same signals that are available on the local HMI.
10.4.5.1
Function revision history
GUID-70204B53-E684-46FC-BD5E-7EB9EDBE4E4A v2
Document
revision
Product
revision
History
A
2.2.1
-
B
2.2.1
-
C
2.2.2
-
D
2.2.3
Addition of one more instance into transformer protection package and setting range
extension for IMin to meet homologation, IEC 61850 LN mapping modification for Str and
Op data objects.
E
2.2.3
-
F
2.2.4
-
G
2.2.4
-
H
2.2.5
-
1MRK 506 377-UEN Rev. K
Section 10
Testing functionality by secondary injection
Railway application RER670
97
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Содержание Relion 670 series
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