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REJ 513
User’s Guide
ABB Substation Automation
Products and Systems
1MRS750613-MUM
32
SGR1...SGR4
The start and operate signals of the protection stages are connected to the output
contacts with switches SGR1...SGR4.
The matrix below can be used for help in making the desired selections. The start and
operate signals of the different protection stages are combined with the output
contacts by encircling the desired intersection point. Each intersection point is marked
with a switch number, and the corresponding weighting factor of the switch is shown
on the bottom row of the matrix. The switchgroup checksum is obtained by adding
horizontally the weighting factors of all the selected switches of the switchgroup.
1
I>
t>
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
1
I>>
t>>
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
O_S513
128
1
2
4
8
16
32
64
Checksum
(factory setting)
PO1
PO2
SO1
SO2
Not in use
Not in use
Not in use
Not in use
SGR1
∑
SGR1=
(
∑
= 12)
∑
SGR2=
(
∑
= 3)
SGR2
∑
SGR3=
(
∑
= 12)
∑
SGR4=
(
∑
= 3)
SGR3
SGR4
Weighting factor
Figure 2.1.3.4-2 Output signal matrix of the overcurrent relay
Содержание REJ 513
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