Use the TRIP signal from the configured binary out put stop the timer.
15. 15. Deactivate the CLOSECMD. Decrease one current with 80% of the
current unsymmetrical level compared to the other two phases. Activate
CLOSECMD.
NO TRIP signal should appear.
13.6.8.2 Completing the test
Continue to test another function or end the test by changing the Test mode setting
to Off. Restore connections and settings to their original values, if they were
changed for testing purposes.
13.6.9 Directional underpower protection GUPPDUP
Prepare the IED for verification of settings as outlined in section "Overview" and
section "Preparing for test" in this chapter.
13.6.9.1
Verifying the settings
The underpower protection shall be set to values according to the real set values to
be used.
The test is made by means of injection of voltage and current where the amplitude
of both current and voltage and the phase angle between the voltage and current
can be controlled. During the test the analog outputs of active and reactive power
shall be monitored.
Procedure
1. Connect the test set for injection of voltage and current corresponding to the
mode to be used in the application. If a three-phase test set is available this
could be used for all the modes. If a single-phase current/voltage test set is
available the test set should be connected to a selected input for one-phase
current and voltage.
Section 13 1MRK 504 088-UEN C
Verifying settings by secondary injection
152
Installation and commissioning manual
To Next Page
Loading...
Need help?
General
