ABB Relion 670 Series Commissioning Manual page 113
Hide thumbs
Also See for Relion 670 Series:
- Technical manual (1432 pages) ,
- Technical reference manual (1232 pages) ,
- Applications manual (944 pages)
Table of Contents
Advertisement
1MRK 511 403-UEN Rev. K
11.4.13
Directional underpower protection GUPPDUP
Prepare the IED for verification of settings as outlined in section
section
11.4.13.1
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 21:
Set value: Mode
L1, L2, L3
Arone
PosSeq
L1L2
L2L3
L3L1
Table continues on next page
Bay control REC670
Commissioning manual
"Preparing for test"
in this chapter.
Calculation modes
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Formula used for complex power calculation
*
*
=
×
+
×
S
U
I
U
I
L
1
L
1
L
2
L
2
EQUATION1697 V1 EN-US
*
=
×
-
×
S
U
I
U
L L
1 2
L
1
L L
2 3
EQUATION1698 V1 EN-US
*
= ×
×
S
3
U
I
PosSeq
PosSeq
EQUATION1699 V1 EN-US
*
*
=
×
-
S
U
(
I
I
)
L L
1 2
L
1
L
2
EQUATION1700 V1 EN-US
*
*
=
×
-
S
U
(
I
I
)
L L
2 3
L
2
L
3
EQUATION1701 V1 EN-US
*
*
=
×
-
S
U
(
I
I
)
L L
3 1
L
3
L
1
EQUATION1702 V1 EN-US
Testing functionality by secondary injection
"Requirements"
and
*
+
×
U
I
L
3
L
3
*
I
L
3
Section 11
SEMOD175027-3 v5
SEMOD175027-7 v7
(Equation 4)
(Equation 5)
(Equation 6)
(Equation 7)
(Equation 8)
(Equation 9)
107
Advertisement
Table of Contents
