
Logical signals for BRPTOC protection are available on the local HMI under
Main menu /
Settings /IED Settings /Current protection /OvercurrBinRel (50, 2I>) /BRPTOC (50, 2I>):x
.
The Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
10.5.8.1
Function revision history
GUID-4FFCEA56-38BC-4B5A-BADB-6C1F7C2249F3 v2
Document
revision
Product
revision
History
A
2.2.1
-
B
2.2.1
-
C
2.2.2
-
D
2.2.3
-
E
2.2.3
-
F
2.2.4
-
G
2.2.4
-
H
2.2.5
Setting
MeasType
to select between
DFT
,
Peak
, and
Peak to peak
measurement modes
is added.
10.5.8.2
Measuring the operate limit of set values
GUID-4FF9AAC6-04B7-4A26-9093-C199C0C50540 v4
1.
Check that the input logical signals BLOCK and BLKTR and the output logical signal TRIP are
all logical zero.
2.
If required, activate the input RELEASE on the BRPTOC function block.
3.
Set
MeasType
to DFT for overcurrent operation.
4.
For a short while inject a current (fault current) in phase L1 to about 110% of the set operating
current
I>
, and switch the current off.
Observe to not exceed the maximum permitted overloading of the current circuits in the IED.
5.
Switch the fault current on and observe that STL1 and START appears. Also, measure the
operating time of BRPTOC.
Use the TRIP signal from the configured binary output to stop the timer. Repeat step 4 and step
5 by changing
MeasType
to Peak and Peak-to-peak and observe the operate time of BRPTOC.
6.
Activate the input BLOCK on the BRPTOC function block.
7.
Switch on the fault current (110% of the setting).
No STL1, START, and TRIP signal should appear.
8.
Switch off the fault current.
9.
For a short while inject a current (fault current) in same phase to about 90% of the set
operating current, and switch the current off.
10.
Switch the fault current on.
No STL1, START, and TRIP signal should appear.
11.
Switch off the fault current.
12.
If required, reset the RELEASE binary input.
13.
Switch the fault current on.
No STL1, START, and TRIP signal should appear.
14.
Switch the fault current off.
15.
Repeat the above steps by injecting fault current in phase L2.
10.5.8.3
Completing the test
M14922-50 v4
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore
connections and settings to the original values, if changed for testing purposes.
Section 10
1MRK 506 377-UEN Rev. K
Testing functionality by secondary injection
112
Railway application RER670
Commissioning manual
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Содержание Relion 670 series
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