Using the real-time island detection and network colouring application in electrical systems

Network colouring application has been used quite extensively within electrical distribution systems. TNB has taken an initiative to extend the power of network colouring to another dimension - to detect system islanding within their transmission network. This paper explains the needs to have a reliable and fast island detector. It then describes the processes within the detection scheme. Through the illustrations on various tests conducted and a real islanding event, the scheme proves to be a worthy assisting tool for the control system operators at TNB