AEG Protect 5.31 Series Operating Instructions Manual page 12

Protect 5.31/xxx-480-220-120 10 kVA - 120 kVA
The information exchange between the individual modules is carried
out using the CAN bus (Controller Area Network). This CAN bus has
high interference immunity and is frequently used for industrial
applications.
Mains
- X1
- Q1
- T40
Rectifier
Inverter
- T1
- F1
optional
- K7
- X2 L-, L+, PE
Battery
Figure 2 Functional principles of the Protect5.xxx/31
The main components of the UPS are (Figure 2):
Rectifier section with:
•
Thyristor stack and control unit
•
Transformer
•
Smoothing device for the batteries
•
Interference suppression devices
Inverter section with:
•
Inverter stack and control unit
•
Interference suppression devices
Static bypass switch (SBS) with:
•
Thyristor stack and control unit
•
Interference suppression devices
Figure 2 illustrates the functional principle of the uninterruptible power
supply unit.
Page 12 of 56
SBS-Mains
U, V, W, PE - X4 U, N, PE
SBS
- Q29
optional
- X3 U, N, PE
Load
- A18 DOU
Display
Signalling
8000020680 BAL, en