STOBER
5 | Storage
05/2019 | ID 442793.01
29
5.1.2
Reforming before commissioning
If reforming is not possible every year, institute reforming on stored devices before commissioning. Note that the voltage
levels depend on the storage time.
The following graphic shows the predominant supply connection.
F1
L1
L2
L3
PE
X10
L1 L2
T2
PE
L3
T1
L1 – L3
Lines 1 to 3
N
Neutral conductor
PE
Grounding conductor
F1
Fuse
T1
Variable transformer
T2
Drive controller
0
25
50
75
100
t [h]
U
[%]
1
2
3
1
0,5
0
2
4
6
8
Fig. 5: Voltage levels dependent on storage time
1
Storage time of 1 – 2 years:
Apply voltage for 1 hour before switching on.
2
Storage time of 2 – 3 years:
Implement reforming according to the graph before switching on.
3
Storage time ≥ 3 years:
Implement reforming according to the graph before switching on.
Storage time < 1 year:
No actions required.