The applicable to live and off-line testing of zinc oxide arresters at all voltage levels. It can detect potential risks such as internal insulation dampness and valve block aging in a timely manner.
It measures total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference. The large screen displays real voltage and current waveforms, and accurately analyzes the fundamental wave and 3rd to 7th harmonics.
Features
★ High-precision sampling and Fourier harmonic analysis;
★ Direct voltage and current acquisition by high-speed magnetic isolation digital sensors;
★ Electric field induction or wireless transmission instead of PT secondary wiring;
★ Six test methods available;
★ Functions including resistive current fundamental peak output and side-phase correction;
★ Built-in battery, clock and mini printer; stores 120 groups of data.