This project’s aims were to develop and demonstrate a pre-saturated core fault current limiter device (PCFCL), to reduce the impact of faults on electricity distribution networks. The PCFCL was developed by GridON, based in Tel Aviv, Israel, and was demonstrated in service over 3 years on a live network at a UK Power Networks substation in Newhaven, East Sussex.
A fault current limiter (FCL) suppresses the damaging currents which result from electricity network faults. This is the fact sheet for the PCFCL device developed during this project.
GridON’s FCL uses a direct current coil to magneticallysaturate the iron core – providing a very low impedanceduring normal operation and a high impedance to limit faults.
Unlike previous technologies, this design offers the advantages of a pre-saturated core type fault currentlimiter without the need for superconducting components.
The design is based on combining industry standard, proven transformer technology with GridON’s unique and proprietary magnetic saturation technology