User Manual
Chapter 8 - BSPS
1QDF10134AAP-SYD-FCC Issue 03
Draft 02
8-3 of 8-16
Another bus (ALARM) sends the information of a faulty rectifier module to the
system controller.
Two accurate shunt-resistors are contained in the system to monitor the load and the
total current.
The battery current is then calculated by the controller to be the difference between
the two.
Two temperature sensors are connected to measure the battery temperature. The
average temperature is calculated and demonstrated.
The status of the various circuit breakers (CB's) is monitored constantly by using
their auxiliary switches. The opening of a CB will result in an audio/visual alarm.
When the reason for alarm is removed, the alarm clears and stops.
8.2. Main Rack
8.2.1. Main Rack
The main rack is the core of the Full-Redundancy 48VDC-power system. It can
contain between one to three rectifiers and a system controller. Listed below are the
components that are housed in the main rack (see Figure 8-2).
•
Rectifier modules
• System controller
• LVLD contactors (commanded by the system controller)
•
Load and battery circuit breakers for DC protection and distribution