Chris Goodhand, Innovation Manager (01977 605641)
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Innovation Funding Incentive
High Voltage Technology
Partial Discharge (PD) is the primary cause of disruptive failure of High Voltage (HV)
switchgear. The UltraTEV Alarm system continuously monitors for
PD activity and alarms, using GPRS, when levels exceed
threshold limits, allowing timely intervention by the DNO. This in turn
enhances the way in which HV assets are managed and maintained and
is making a positive impact on the safety of operators working within
The Ultra TEV alarm is a permanent fixed version of the Ultra TEV hand
held devices that our substation inspectors are currently using. This
proposal is to identify a suitable set of HV switchboards and install the
Ultra TEV alarm system to provide continuous monitoring for PD which could lead to a disruptive failure.
It is also proposed to trial the use of GSM / GPRS connection from these
units to the Nortech iHost solution. This will provide the facility to
record individual events, enhancing the existing latching facility of the
EA Technology hub.