b'Partner News Spring 2021 27EnterpriseHVPD support UKwind farm operatorsin maintaining reliable High Voltage networksDetecting degradation in electrical insulationhigh voltage withstand testing can also be plays a crucial part in maintaining highdetected. Once a wind farm is in-service, reliability of wind farm export and inter- non-intrusive On-line PD testing can detect array High Voltage (HV) networks. HVPDand locate any early stages of insulationThe HVPD test team are fully have been supporting onshore and offshoredeterioration whilst the asset is under normalqualified to work offshore.wind farm operators across the UK throughoperating conditions. By having an overview Partial Discharge (PD) test services on theof the insulation condition of the entire HVfrom factory tests through entire network from substations through tonetwork, operation and maintenance teamsto at-site commissioning.export and inter-array cables to wind turbinecan trend any issues and make interventions transformers.to avoid in service failures.PD can occur due to voids or imperfectionsIf youd like to know more information in insulation that will eventually lead toon PD testing, get in touch with HVPD at treeing or tracking. PD detection thus givesinfo@hvpd.co.uk or visit hvpd.co.ukan indication of an incipient fault prior to insulation breakdown; it is a useful tool both for assessment of new equipment and as part of safe site access protocols and Condition Based Maintenance programs on operating sites.The HVPD test team are fully qualified to work offshore, with certifications including BOSIET and GWO, and carry out PD testing at all stages in the lifespan of high voltage equipment, from factory tests through to at-site commissioning and during operation and maintenance.PD testing in the factory and during commissioning or after repair helps ensure the insulation system in good condition prior to putting into service. Defects which may not cause immediate failure duringTesting for Partial Discharge'