Completing The Test; Directional Underpower Protection Guppdup; Verifying The Settings - ABB RET670 Installation And Commissioning Manual

Section 13
Verifying settings by secondary injection
13.6.8.2
13.6.9
13.6.9.1
152
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.

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.

Directional underpower protection GUPPDUP

Prepare the IED for verification of settings as outlined in section
section "Preparing for test"

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.
in this chapter.
1MRK 504 088-UEN C
"Overview"
Installation and commissioning manual
and