Set value:
Mode
Formula used for complex power calculation
L2L3
*
*
2 3
2
3
(
)
L L
L
L
S
U
I
I
=
×
-
EQUATION1701 V1 EN
(Equation 18)
L3L1
*
*
3 1
3
1
(
)
L L
L
L
S
U
I
I
=
×
-
EQUATION1702 V1 EN
(Equation 19)
L1
*
1
1
3
L
L
S
U
I
= ×
×
EQUATION1703 V1 EN
(Equation 20)
L2
*
2
2
3
L
L
S
U
I
= ×
×
EQUATION1704 V1 EN
(Equation 21)
L3
*
3
3
3
L
L
S
U
I
= ×
×
EQUATION1705 V1 EN
(Equation 22)
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
6.5.7.2
Completing the test
Continue to test another function or end the testing by setting the parameter
TestMode
to
Off
under
Main menu/Tests/IED test mode/TESTMODE:1
. If another function
is tested, then set the parameter
Blocked
to
No
under
Main menu/Tests/Function test
modes/Current/GUPPDUP(37,P<)/GUPPDUP:1
for the function, or for each
individual function in a chain, to be tested next. Remember to set the parameter
Blocked
to
Yes
, for each individual function that has been tested.
6.5.8
Directional overpower protection GOPPDOP
Prepare the IED for verification of settings as outlined in
.
1MRK 502 049-UEN A
Section 6
Testing functionality
75
Commissioning manual