High availability for power supplies in computer centres

Managers of computing centres are constantly faced with the challenge of guaranteeing a high availability of power supplies. Even the briefest of interruptions of the order of milliseconds can have serious consequences. A crucial aspect of this is not just providing a back-up in the form of appropriate UPS systems, but also ensuring the proper design of the network structure and the exclusive use of TN-S systems.

Furthermore, it is important to keep the new installation in proper working order in the long term, as even an accidental bridge between the N and PE conductors can lead to inexplicable malfunctions. The impact on the grid of harmonic waves from modern consumers can cause problems of a similar level. Overloaded N conductors and the associated fire hazards or EMC-related malfunctions are not unknown.  There is also a need to implement preventive monitoring systems to avoid tripping protective equipment as a result of excessive fault currents.


Bender system solutions monitor the electrical systems at the crucial locations and by means of early reporting provide the necessary early heads-up before an unnecessary fault can occur or, in the worst-case scenario, a service interruption.

Data centre

Improved economic efficiency

  • Avoiding expensive and unplanned system shutdowns
  • Reducing time and staff expenses for maintenance
  • Detecting weak points in systems
  • Supporting investment decisions

Optimised maintenance

  • Early detection and reporting of insulation degradation
  • Automatic localisation of faulty current paths
  • Optimised use of time and staff resources
  • Central information regarding system status
  • Remote diagnosis via Internet/Ethernet

Improved fire protection

  • Early detection of fire hazardous insulation faults
  • Minimising fault arcs as a common cause of fire

A fault-free power supply and thereby uninterrupted operation is a basic requirement for the safety of humans and machines.

  • Improved operational safety due to early detection of a potential critical system status
  • Extensive protection of persons and installations against hazards caused by electrical current
  • Higher productivity
  • Clear reduction in operating expenses
  • Time- and cost-effective maintenance


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