Set value: Mode Formula used for complex power calculation
CA
EQUATION2060-ANSI V1 EN-US (Equation 89)
A
EQUATION2061-ANSI V1 EN-US (Equation 90)
B
EQUATION2062-ANSI V1 EN-US (Equation 91)
C
EQUATION2063-ANSI V1 EN-US (Equation 92)
2. Adjust the injected current and voltage to the set 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 reverse 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.
11.5.13.2 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 the original values, if changed for testing purposes.
11.5.14 Directional overpower protection GOPPDOP (32)
SEMOD175058-3 v5
Prepare the IED for verification of settings as outlined in section
"Requirements" and section "Preparing
for test" in this chapter.
11.5.14.1 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.
Section 11 1MRK 504 165-UUS Rev. J
Testing functionality by secondary injection
190 Transformer protection RET670
Commissioning manual
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