Wärtsilä JOVYTEC PNT 1000VA
–
3000VA BAX 3313_en
- 8 -
P L E A S E N O T E !
The output of the UPS unit also carries a voltage in the case of a power failure!
This is why the installation engineer must mark the outputs and power
sockets on the UPS unit clearly according to EN 62040.
Input
Battery
Rectifier
Inverter
Ouput
Manual Bypass
Input
Battery
Rectifier
Inverter
Output
Manual Bypass
3.
General description of the function
Normal operation
During normal operation the battery and the inverter are supplied with power via a rectifier (online operation).
The change-over from alternating voltage to direct voltage and back to alternating voltage again is achieved
by a sinusoid output voltage with a low distortion factor. The direct voltage is also needed for charging the
battery. The inverter supplies the attached consumers.
Figure 1
: Block diagram “Normal operation“
Power failure
In the case of a power failure, the energy needed by the inverter is taken from the battery. At the output the
voltage from the inverter is still available.
Figure 2
: Block diagram “Power failure“
