The Smart Fuse

BIDOYNG is a single shot auto-recloser designed to remove intermittent faults from the Low Voltage network.

BIDOYNG fits into existing LV fuse positions using two LV fuses in parallel, creating a robust single-shot auto-recloser. The primary fuse carries the load current until a fault causes it to operate. Then, after a user programmed delay, the secondary fuse is switched in and the network re-energised without customer interruption.

A revolutionary step forward in the intelligent automation of the Low Voltage distribution network, BIDOYNG provides:

  • Single shot auto-recloser
  • Fault location
  • Voltage and current measurement
  • Load profiling
  • Remote communications
  • Efficiency towards a low carbon network
  • Improved network performance
  • Fuse replacements can be proactively scheduled - better use of manpower resources
  • Embedded fault location reduces the cost of finding and repairing faults

Key Benefits

  • Manage and extend life of underground cable assets
  • Better LV network performance
    • Dramatically reduce CML’s and CI’s
  • Minimise cost and impact of intermittent faults
    • Embedded fault location and early detection of developing faults
    • Built-in voltage and current measurements
  • Efficiencies in manpower and financial resources
    • Target repairs more accurately
    • Apply resources when and where needed
  • Integrate into an existing network management system
  • Load profiling of LV network



GATEWAY provides LV substation communications. GATEWAY is a wireless interface between BIDOYNG and remote users, GATEWAY gives visual representation of local BIDOYNG units.

This allows up to 15 BIDOYNG units to give live status updates remotely.


BIDOYNG are used in conjunction with a GATEWAY to provide enhanced system features:

  • GSM / GPRS for external communication and real time status of each unit
  • Full web-based interface for detailed information
  • Updates on critical feeders via SMS and / or email