Fujitsu DX60S2 사용자 설명서
Chapter 2 ETERNUS DX Disk Storage System Installation
2.6 Circuit Protectors
2.6 Circuit Protectors
ETERNUS DX60 S2 Disk storage system User’s Guide -Site Planning-
37
Copyright 2012 FUJITSU LIMITED
P3AM-5492-04ENZ0
2.6.2
Breaking Characteristics
■
For power distribution unit (2U) connection
The breaking characteristics (*1) of distribution board circuit protectors must be slower than the
values shown in
values shown in
or equivalent to D (IEC898).
*1:
Relationship between the size of excess current and operation time
Figure 2.4
Power distribution unit (2U) breaking characteristics (graph)
Table 2.10 Power distribution unit (2U) breaking characteristics (Trip time (sec.))
Delay
100%
125%
150%
200%
400%
600%
800%
1000%
63
No Trip
50 to
700
30 to
400
10 to
150
1.5 to
20
0.4 to
10
0.013 to
0.85
0.013 to
0.5
150
100
200
300
400
500
600
700
800
900
1000
0
125
PERCENT OF RATED CURRENT
100
1000
10000
10
1
.1
.01
.001
TIME IN SECONDS
DELAY 63
MA
Y TRIP