Connecting Technologies
T: +44 (0)1285 323 525    E:

Back to all News »

Lightning Strike Blows Substation Surge Arrester

You would be forgiven for thinking this is a story of disaster – far from it in fact. During initial test energising at a new substation in the south of England, a Tridelta surge arrester supplied by PACE Networks was found to have failed during initial site energisation tests. PACE and Tridelta technical engineers visited the site in the following days to inspect the remaining surge arresters. Together with Scottish Power engineers, it was concluded that the most likely cause of failure was a substation software issue which created a dc fault current meaning that the surge arrester had to absorb unprecedented levels of energy over a very short space of time. Two surge arresters were found to have suffered in excess of 200 strikes and in doing so saved other equipment from failing. This was equivalent to more than 5 times the expected number of strikes over the equipment service life.

Thankfully Tridelta were able to supply replacement units in a matter of just a few weeks, which enabled the substation energisation project to continue with minimum disruption.

Get the Latest Rail & Power Grid Updates Direct to Your Inbox:

You might also be interested in reading...

Reliable Toughened Glass Insulators from SYGG Available from PACE Networks

PACE Networks are offering reliable, high quality toughened glass insulators from Sichuan Yibin Global Group (SYGG).
Read More >

Safer Remote Isolation Switching with Pear Drive Operating Gear

Tension rods are no longer recommended for future installations on new acceptance certificate. Network Rail’s 04116 certificate states a clear preference for the Morris Line designed Pear Drive and that the use of tension rods will invalidate the warranty.
Read More >

Webinar – Tridelta Meidensha Surge Arresters for Railways

Join the technical webinar on 26 April 2022 from PACE Network’s partner Tridelta Meidensha. The webinar will cover catenary system protection and railway applications.
Read More >

ISO 9001
Cyber Essentials