Overview Frequency conversion series resonance test device is designed and manufactured for alternating-current withstand voltage test of Possessing a wider application scope, it is the ideal withstand voltage equipment for prefecture-level, municipal-level and county-level high-voltage test departements as well as power installation and repair & testing engineering units. Frequency Conversion Series Resonance Test Device Technical index Rated voltage Quality factor under full load in test of fire power generator Q 10 relating to load Quality factor under full load in cable test Q 30 relating to load Quality factor under full load in test of main transformer: Q 30 relating to load GIS, the quality factor under full load in switch test and other tests Q 50 relating to load Input power supply single phase of 380V Frequency adjustment range 20Hz 300Hz Accuracy of system measurement 1.5 The unit possesses protective functions, such as over voltage, over current and zero start. Description for main configuration and technical data of equipment One set of variable-frequency power supply Rated power 10kVA; Input voltage single phrase of 220V or three phase of 380V 10 and 45 65Hz Output voltage 0 400V adjustable Output voltage frequency 30 300Hz 0.1Hz adjustable stepping Instability degree of frequency 0.02 Output current: 0 25A