power protection). Check that the monitored active power is equal to 100% of
rated power and that the reactive power is equal to 0% of rated power.
3. Change the angle between the injected current and voltage to Angle1 + 90°.
Check that the monitored active power is equal to 0% of rated power and that the
reactive power is equal to 100% of rated power.
4. Change the angle between the injected current and voltage back to 0°. Decrease
the current slowly until the PICKUP1 signal, pickup of stage 1, is activated.
5. Increase the current to 100% of IBase.
6. Switch the current off and measure the time for activation of TRIP1, trip of stage
1.
7. If a second stage is used, repeat steps
2 to 6 for the second stage.
13.5.10.2 Completing the test
SEMOD175027-15 v4
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled. Restore connections and settings to their original values, if they were
changed for testing purposes.
13.5.11 Directional overpower protection GOPPDOP (32)
SEMOD175058-3 v5
Prepare the IED for verification of settings outlined in Section "Preparing the IED to
verify settings".
13.5.11.1 Verifying the settings
SEMOD175058-7 v6
The overpower 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.
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.
2. Adjust the injected current and voltage to the set rated values in % of IBase and
VBase (converted to secondary current and voltage). The angle between the
injected current and voltage shall be set equal to the set direction Angle1, angle
for stage 1 (equal to 0° for low forward power protection and equal to 180° for
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 209
Commissioning manual
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