KRB-5404
57
◯
8
◯
1
◯
9
◯
2
◯
3
◯
4
◯
5
◯
6
◯
7
◯
2
◯
8
◯
1
5-3-2-3. Monitor screen
5-3-2-3-1. Monitor screen (AGR-21B,22B)
Fig. 56 shows how to navigate the monitor screen and Table 26 lists the items that can be viewed on this screen.
Fig. 56 Monitor screen navigation
Table 26 Monitor subscreens
No.
Subscreen item *1
Description
Tolerance
○
1
Max. phase current (present value)
Initial display
For type AGR-21B OCR:
2.5% of CT rated primary current [
I
CT
]
Reading will be "0" when < 5% of CT rated primary current
[
I
CT
].
For type AGR-22B OCR:
1.5% of CT rated primary current [
I
CT
]
Reading will be "0" when < 1.5% of CT rated primary
current [
I
CT
].
○
2
First phase (R/A-phase) current (present value)
–
○
3
Second phase (S/B-phase) current (present value)
–
○
4
Third phase (T/C-phase) current (present value)
–
○
5
Neutral (N-phase) current (present value)
Displayed when THE ACB is of 4-pole type
○
6
Ground fault current (present value)
Displayed only when THE ACB is equipped with the
ground fault trip function
○
7
Negative-phase current (present value)
Displayed only when THE ACB is equipped with the
negative-phase sequence protective function
○
8
Max. phase current
–
○
9
(Setup screen)
See 5-3-2-4-1.
–
*1 If no value is found for an item, the corresponding subscreen is skipped.