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BlueNet residual current monitoring

Maximum availability and safety

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Using residual current monitoring allows changes in the level of insulation of a power supply to be detected at an early stage, before protective devices are tripped by a residual current that puts people at risk and involves the risk of fire. This time advantage allows countermeasures to be planned and contributes to the high availability of the power supply and therefore the system.

Thanks to the BACHMANN BlueNet PDU, this residual current monitoring isn't just undertaken at central measuring points, but at rack level per PDU, per phase or even per socket group. The residual current sensor conforms to the relevant standards and provides a high physical granularity, maximum safety and high availability. This AC/DCsensitive technology monitors all kinds of residual current in modern power supplies with switching power supplies. The residual current monitoring (RCM) is therefore
particularly suited to use in IT.

Permanent monitoring of systems and operating equipment
Permanent monitoring is absolutely essential in modern information technology. Continuous monitoring equipment reduces the work involved in statutory repeat testing. In accordance with accident prevention regulations (DGUV, rule 3), the system's testing dates can be adapted to suit actual circumstances and optimise costs using permanent RCM. The residual current monitoring (RCM) is able to record residual currents of 1 mA and higher. Residual current activation values can be set in the  BlueNet software.

The BlueNet software reliably signals instances where these values are exceeded. All measured values are transferred to superordinate systems via the Ethernet interface. A local display in the PDU also provides information about all important measured values. This setup ensures that the availability of  the power supply has absolute priority at all times and that the system is not unexpectedly shut down in the event of errors. The BlueNet technology also allows a master-slave network to be installed, saving installation costs and minimising the administration work involved.

The advantages at a glance

Greater safety for people, operations and systems

  • Early detection of data loss and network failure
  • Recording of residual currents at the consumer socket outlet directly for the fastest
    possible error localisation
  • Preventative safety to protect people from the hazards caused by electric current
  • Faults and unexpected interruptions to the operation of sensitive equipment are minimised
  • Insulation errors in newly installed systems and devices are detected immediately
  • Permanent monitoring of systems and operating equipment
  • TN-S systems are monitored for additional unwanted N-PE bridges

More cost-effective

  • Continuous monitoring equipment reduces the work involved in repeat tests
  • In accordance with §5 of the accident prevention guidelines BGV A3, the testing dates for measuring insulation can be adapted to suit actual circumstances using
    permanent RCM
  • No expensive and unscheduled system downtimes and service interventions

Greater fire protection

  • Combustible residual currents are recognised as they arise



Find out more about these articles in our Complete Catalogue from page 230.

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Email info(at)bachmann.com