Apr 2013
Electricity Distribution
LV Underground Cable Fault Management
Live
Apr 2013
Unknown
UK Power Networks
UKPN Innovation Team
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Innovation Funding Incentive
None
LV & 11kV Networks
£448,928.00
UKPN identified opportunities to improve the detection and location of intermittent faults on LV underground cables.

This project combined the use of an intermittent cable fault location device (T-P22) with an improved re-energisation device (REZAP Fault Master) so that LV intermittent faults can be better managed and customer interruptions reduced.

The project has developed the following techniques:

  • Time reflection to determine fault location

  • Transient impedance fault location

  • Travelling wave fault location

  • An auto reclosing device.