Table 2:
Calculation modes
Set value:
Mode
Formula used for complex power calculation
L1, L2, L3
*
*
*
1
1
2
2
3
3
L
L
L
L
L
L
S
U
I
U
I
U
I
=
×
+
×
+
×
EQUATION1697 V1 EN
(Equation 4)
Arone
*
*
1 2
1
2 3
3
L L
L
L L
L
S
U
I
U
I
=
×
-
×
EQUATION1698 V1 EN
(Equation 5)
PosSeq
*
3
PosSeq
PosSeq
S
U
I
= ×
×
EQUATION1699 V1 EN
(Equation 6)
L1L2
*
*
1 2
1
2
(
)
L L
L
L
S
U
I
I
=
×
-
EQUATION1700 V1 EN
(Equation 7)
L2L3
*
*
2 3
2
3
(
)
L L
L
L
S
U
I
I
=
×
-
EQUATION1701 V1 EN
(Equation 8)
L3L1
*
*
3 1
3
1
(
)
L L
L
L
S
U
I
I
=
×
-
EQUATION1702 V1 EN
(Equation 9)
L1
*
1
1
3
L
L
S
U
I
= ×
×
EQUATION1703 V1 EN
(Equation 10)
L2
*
2
2
3
L
L
S
U
I
= ×
×
EQUATION1704 V1 EN
(Equation 11)
L3
*
3
3
3
L
L
S
U
I
= ×
×
EQUATION1705 V1 EN
(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.
Section 6
1MRK 511 248-UEN -
Testing functionality
58
Commissioning Manual
