Table of Contents
Advertisement
1MRK 505 288-UEN A
Technical manual
Below example shows a situation with adaptive frequency tracking with one reference
selected for all instances. In practice each instance can be adapted to the needs of the
actual application.
Task time group 1
(5ms)
SMAI_20_1:1
BLOCK
SPFCOUT
DFTSPFC
AI3P
REVROT
AI1
GRP1L1
AI2
GRP1L2
AI3
GRP1L3
AI4
GRP1N
AIN
Task time group 1 (5ms)
SMAI instance 3 phase group
SMAI_20_1:1
1
SMAI_20_2:1
2
SMAI_20_3:1
3
SMAI_20_4:1
4
SMAI_20_5:1
5
DFTRefGrp7
SMAI_20_6:1
6
SMAI_20_7:1
7
SMAI_20_8:1
8
SMAI_20_9:1
9
SMAI_20_10:1
10
SMAI_20_11:1
11
SMAI_20_12:1
12
IEC11000284 V1 EN
Figure 214:
Configuration for using an instance in task time group 1 as DFT
reference
Assume instance SMAI_20_7:1 in task time group 1 has been selected in the
configuration to control the frequency tracking (For the SMAI_20_x task time
groups). Note that the selected reference instance must be a voltage type.
For task time group 1 this gives the following settings:
For SMAI_20_1:1
DFTRefExtOut set to DFTRefGrp7 so as to route SMAI_20_7:1 reference to the
SPFCOUT output, DFTReference set to DFTRefGrp7 so that SMAI_20_7:1 is used as
reference.
For SMAI_20_2:1 to SMAI_20_12:1
DFTReference set to DFTRefGrp7 so that SMAI_20_7:1 is used as reference.
For task time group 2 this gives the following settings:
Basic IED functions
Task time group 2
(20ms)
SMAI_20_1:2
BLOCK
SPFCOUT
DFTSPFC
AI3P
REVROT
AI1
GRP1L1
AI2
GRP1L2
AI3
GRP1L3
AI4
GRP1N
AIN
Task time group 2 (20ms)
SMAI instance 3 phase group
SMAI_20_1:2
1
SMAI_20_2:2
2
SMAI_20_3:2
3
SMAI_20_4:2
4
SMAI_20_5:2
5
SMAI_20_6:2
6
SMAI_20_7:2
7
SMAI_20_8:2
8
SMAI_20_9:2
9
SMAI_20_10:2
10
SMAI_20_11:2
11
SMAI_20_12:2
12
IEC11000284-1-en.vsd
Section 15
485
Advertisement
Table of Contents
