Improving Network Security and Stability using an Integrated Operational Tripping System

The need for an operational tripping system that would increase the security and stability of the transmission network for the Southern Region was highlighted by National Grid. The requirement to de-load the strategically important cross-channel DC link at Sellindge Substation was to be implemented using an integrated solution which incorporated and met both high-speed stability and mid-speed thermal criteria. This presentation discusses how this is achieved with the use of modern control and protection technology.