Battery monitoring system

To maintain a submarine battery in good condition it is necessary to continuously monitor individual battery cells.

The Battery Monitoring System is a wireless system intended for measurements of voltage, acid level and acid temperature for all battery cells. The busbar voltage drop between two cells is also measured. The measurements are performed by Cell Probes fitted on each battery cell.

The Cell Probes are sending data wirelessly via a Probe Interface to the Interface Unit. There is one or two Probe Interface and one Interface Unit per battery compartment. Depending on customer requirements the Interface Unit can also include insulation monitoring and collection of external signals, e.g. for total battery voltage and current.

The Interface Unit communicate with the operator system to be used. This operator system could be a Ships Control and Monitoring System or a dedicated Battery Monitoring Computer. It is also possible to connect a PC directly to the Interface Unit for service and maintenance of the system.

The main features are:

  • Low maintenance
  • Reduced cabling
  • Reduced Mean time to repair (MTTR)
  • Simplified service/repair work
General Technical Data
  • Power supply from cell 1.5-3.0 VDC
  • Power consumption 0,5W
  • Degree of protection IP67
  • ATEX classification II 1/2G Ex e ib mb
    IIC T4 Ga/Gb
  • Shock resistance Half Sine Shock Pulse 700g 1,5 ms, 72 g 3,5 ms
  • Vibration MIL-STD-167-1A
  • EMC MIL-STD-461-G
  • Cell Voltage 1.5-3.0V DC
  • Bus bar voltage drop accuracy -500mV to 500mV
  • Electrolyte level range 55 mm t0 160 mm
    ±5 mm
  • Temperature range 0-60 C
  • Weight 300 g