Directional Underpower Protection Guppdup; Verifying The Settings - ABB REG670 2.0 IEC Commissioning Manual

Section 12
Testing functionality by secondary injection
12.5.10
12.5.10.1
166

Directional underpower protection GUPPDUP

Prepare the IED for verification of settings outlined in section
section "Preparing for test"

Verifying the settings

The underpower 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.
Table 16: Calculation modes
Set value: Mode
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
Table continues on next page
in this chapter.
Formula used for complex power calculation
*
= × + ×
S U I U
L 1 L 1 L 2
EQUATION1697 V1 EN
*
= × -
S U I U
L L 1 2 L 1 L L
EQUATION1698 V1 EN
= × ×
S 3 U I
PosSeq PosSeq
EQUATION1699 V1 EN
*
= × -
S U ( I I
L L 1 2 L 1 L
EQUATION1700 V1 EN
*
= × -
S U ( I I
L L 2 3 L 2 L
EQUATION1701 V1 EN
*
= × -
S U ( I I
L L 3 1 L 3 L 1
EQUATION1702 V1 EN
1MRK502053-UEN B
"Requirements"
* *
+ ×
I U I
L 2 L 3 L 3
(Equation 80)
*
×
I
2 3 L 3
(Equation 81)
*
(Equation 82)
*
)
2
(Equation 83)
*
)
3
(Equation 84)
*
)
(Equation 85)
Generator protection REG670 2.0 IEC
Commissioning manual
and