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1MRK502053-UEN B
12.5.10.2
12.5.11
12.5.11.1
Generator protection REG670 2.0 IEC
Commissioning manual
Testing functionality by secondary injection
Set value:
Mode
L1
L2
L3
2.
Adjust the injected current and voltage to the set values in % of IBase and UBase
(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 START1 signal, start 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
Completing the test
Continue to test another function or end the test by changing the TestMode setting to
Off. Restore connections and settings to their original values, if they were changed for
testing purposes.
Directional overpower protection GOPPDOP
Prepare the IED for verification of settings outlined in section
section
"Preparing for test"
Verifying the settings
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.
Formula used for complex power calculation
*
= ×
×
S
3
U
I
L
1
L
1
EQUATION1703 V1 EN
*
= ×
×
S
3
U
I
L
2
L
2
EQUATION1704 V1 EN
*
= ×
×
S
3
U
I
L
3
L
3
EQUATION1705 V1 EN
2
to
6
for the second stage.
in this chapter.
Section 12
(Equation 86)
(Equation 87)
(Equation 88)
"Requirements"
and
167
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