ABB RELION 670 Series Commissioning Manual page 104

Section 11
Testing functionality by secondary injection
The second current I
the starting time of the test) and frequency:
•
•
Verifying the settings by secondary injection
It is advised to connect the analog output channels of the function block OOSPPAM to the internal
disturbance recorder (and in particular to the function block A4RADR) in order to perform a better
analysis of the tests.
If the device is in test mode, the recording of the disturbances are enabled by the setting in Main
menu/Settings/IED Settings/Monitoring/Disturbance report/DisturbanceReport/DRPRDRE:1:
set the parameter
1. Check the Application Configuration: verify that hardware voltage and current channels of the
IED are properly connected to SMAI function blocks, and that the proper analog outputs of
SMAI's are connected to the analog inputs of the function block OOSPPAM.
2. Connect three-phase voltage channels of the test set to the appropriate IED terminals.
3. Connect in parallel two groups of three-phase currents of the test set to the appropriate IED
terminals.
4. Connect the appropriate trip output of the IED to the input channel of the test set that
monitors the trip.
5. Go to Main menu/Settings/IED Settings/Impedance protection/OutOfStep(78,Ucos)/
OOSPPAM(78,Ucos):1, and make sure that the function is enabled, that is,
On .
98
has magnitude 10459 A (that is, 1.162 A secondary), phase angle 180º (at
tf
49.5 Hz for the test as generator in the quadrant 1 and 2 of the R-X plane
50.5 Hz for the test as generator in the quadrant 3 and 4 of the R-X plane
When the trajectory of the impedance, that is seen by the protection function,
traverses the lens characteristic then a pole slipping is detected. The present
procedure avoids tests of points of the line SE-RE that are too close to the R-axis
because in that case the voltage is close to zero and, therefore, the impedance may
approach a not defined quantity 0/0.
The accuracy of the impedance reach is ±2% of the base impedance; that is
considered while evaluating the test results.
For the test as motor the frequency current may have 50.5 Hz in the quadrant 1 and
2 of the R-X plane and 49.5 Hz in the quadrant 3 and 4.
OpModeTest to On .
1MRK 511 366-UUS A
GUID-1752CE04-7C0F-4D37-9602-B22D8096DD2D v1
Operation is set to
Commissioning manual