Set value: Mode
Formula used for complex power calculation
L1
*
1
1
3
L
L
S
U
I
= ×
×
EQUATION1703 V1 EN-US
(Equation 10)
L2
*
2
2
3
L
L
S
U
I
= ×
×
EQUATION1704 V1 EN-US
(Equation 11)
L3
*
3
3
3
L
L
S
U
I
= ×
×
EQUATION1705 V1 EN-US
(Equation 12)
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
11.4.13.2
Completing the test
SEMOD175027-15 v4
Continue to test another function or end the test by changing the
TESTMODE
setting to
Off
. Restore
connections and settings to the original values, if changed for testing purposes.
11.4.14
Directional overpower protection GOPPDOP
SEMOD175058-3 v5
Prepare the IED for verification of settings as outlined in section
11.4.14.1
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.
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
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
Section 11
1MRK 511 403-UEN Rev. L
Testing functionality by secondary injection
108
Bay control REC670
Commissioning manual
© 2017 - 2022 Hitachi Energy. All rights reserved
Содержание REC670
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