Main features

• On-line diagnostic of metal oxide surge arresters
• According to IEC 60099-5 A1 “Diagnostic indicators of metal-oxide surge arresters in service”
• Third harmonic analysis of leakage current with compensation
• Extensive field experience
• Easy, fast and reliable diagnostic method
• Safe lightweight equipment
• Supplied with C 47-IS clip-on transformer specifically designed to measure leakage current losses in the presence of high electric and magnetic fields