Completing The Test; Current Protection; Directional Phase Overcurrent Protection, Four Steps Oc4Ptoc; Function Revision History - ABB Relion 650 Series Commissioning Manual

1MRK 505 390-UEN Rev. F
2. Increase the voltage and make note of the operate value U>Trip. This is done by manual
testing and without trip of the test set.
3. Connect the trip contact to the test set to stop the test set for measurement of trip times below.
4. Reduce the voltage slowly and make note of the reset value. The reset value must be high for
this function.
5. Check the operating time by injecting a voltage corresponding to 1.2 ˣ U>Trip level. Make note
of the measured trip time.
6. If required, verify the trip time at another voltage. Normally 2 ˣ U>Trip is selected.
7. If used, measure the alarm level operating value. Increase the voltage and make note of the
operate value U>Alarm. This is done with manual test and without trip of the test set.
8. Measure the operating time on the alarm output by connecting the stop of the test set to an
output from tAlarm. Inject a voltage 1.2 ˣ U>Alarm and measure the alarm time.
9. Check that trip and alarm outputs operate according to the configuration logic.
10. Finally check that start and alarm information is stored in the event menu and if a serial
connection to the SA is available verify that the correct and only the required signals are
presented on the local HMI and on the SCADA system.
9.3.1.2

Completing the test

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.
9.4

Current protection

9.4.1

Directional phase overcurrent protection, four steps OC4PTOC

Prepare the IED for verification of settings outlined in Section
Values of the logical signals for OC4PTOC are available on the local HMI under Main menu/Tests/
Function status/Current protection/PhaseOverCurrent4Step(51_67,4(3I>)) /
OC4PTOC(51_67;4(3I>)):x, where x = instance number.
The Signal Monitoring in PCM600 shows the same signals that are available on the local HMI.
9.4.1.1

Function revision history

Document
revision
A
B
C
Table continues on next page
Busbar protection REB650
Commissioning manual
The required trip and alarm voltage, as well as the used stabilizing resistance
value must be set in the function. Note as well that the used CT input in the
IED must have the ratio set as 1:1. This is essential for the measurement of the
expected value. Normally a slightly higher operating value is no problem as the
sensitivity is not influenced much.
Information on how to use the event menu is found in the operator's manual.
Product History
revision
2.2.1 -
2.2.1 -
2.2.1 -
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Testing functionality by secondary injection
"Preparing the IED to verify
GUID-154CAE8E-8FD4-460C-852D-6E5C93545F0D v1
Section 9
SEMOD55257-73 v4
SEMOD53531-1 v1
SEMOD56287-67 v9
settings".
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