This MOV- metal oxide varistor test system is the perfect device to perform analysis and diagnostics on metal oxide arrestors. It is supplied with a special current clip-on transformer designed for the measurement of current leakage.On-line diagnostic of metal oxide surge arrestersAccording to IEC 60099-5 A1 Diagnostic indicators of metal-oxide surge arresters in serviceThird harmonic analysis of leakage current with compensationExtensive field experienceEasy, fast and reliable diagnostic methodSafe lightweight equipmentSupplied with C 47-IS clip-on transformer specifically designed to measure leakage current losses in the presence of high electric and magnetic fields