Introduction of rapid earth fault current limiters to selected 22KV zone substations
Energy Safe Victoria (ESV) has commissioned a survey of selected high voltage customer sites across Victoria to examine the safety risks when HV customer sites are supplied by rapid earth fault current limiter (REFCL) protected networks.
This survey has been completed and Dr Tony Marxsen has provided his final report titled “Customer Assets Directly Connected to REFCL Networks: A Preliminary Risk Survey” (The Marxsen Report), which is now available on the ESV website.
The Marxsen Report concludes that there is a small but real risk posed from the operation of a REFCL potentially affecting the HV customer sub-network as well as compromise the effectiveness of the REFCL protected network to reduce fire ignitions.
The report also provides insights into the potential solutions and the work required to address these risks.
ESV welcomes any comments stakeholders might have on the final report and with the agreement of the stakeholder will post those comments on our website.
Read more on our dedicated webpage here.