22
• DOK-POWER*-TVD*1.3****-ANW1-EN-E1,44 • 02.97
• The periodic overvoltage on the TVD 1.3 between a phase (1U1, 1V1, 1W1,
2U1, 2V1, 2W1) and the housing may not exceed 1000 V (peak value).
• Non-periodic overvoltages, as per VDE 0160, between the phases and the
phases and the housing are permissible for the TVD 1.3 as depicted in the
diagram below.
Overvoltages
0.1
0.2
0.4 0.6
1 1.3
2
4
6
10
20
T (ms)
T
UN+
∆
U
UN
3
2.6
2.4
2.3
2.2
2
1.8
1.6
1.4
1.2
1.15
1.1
1
U
N
∆
U
∆
U
2
DGUespg
3. Electrical Connections
Fig. 3.8: Permissible non-periodic overvoltages as per VDE 0160
The TVD 1.3 can be connected to 3 x 480 V.
This means that the maximum permissible overvoltage equals:
480 V x
√
2 • 2.3 = 1560 V
