Zinc Oxide Surge Arrester On-Line Tester | XHDD405 Wireless Series
The XHDD405 wireless series zinc oxide arrester on-line tester is designed for live and power-off inspection of ZnO arresters at any voltage level, enabling early detection of critical faults such as internal insulation moisture and valve plate aging.
It is capable of measuring total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference. The large LCD shows real voltage and current waveforms, and accurately analyzes fundamental wave and 3rd to 7th harmonic contents.
Applications & Target Audience: Engineered for sports stadium and gymnasium electrical maintenance teams, waste-to-energy and biomass power plant electrical departments, meteorological radar and weather observation station maintenance teams, and convention center and exhibition hall facility engineering teams that perform live and power-off inspection of zinc oxide surge arresters at any voltage level.
Performance Advantages
High-accuracy sampling and advanced Fourier harmonic analysis;
Direct voltage and current acquisition using high-speed magnetic isolation digital sensors;
Uses electric field induction or wireless transmission instead of PT secondary connection;
Six independent test methods available;
Features resistive current fundamental peak output and side-phase correction;
Equipped with internal battery, calendar clock and micro printer; stores 120 sets of measurement data.
Testing Capabilities and Field Application Scenarios
The XHDD405 combines live-line measurement capability with comprehensive data management, making it suitable for a wide range of field scenarios. The table below summarizes its testing capabilities and typical applications:
| Testing Capability |
How It Works |
Typical Field Scenarios |
| Live-line (on-line) testing |
Electric field induction or wireless transmission replaces the PT secondary connection for energized measurement |
Routine on-line inspection of arresters in service without power outage |
| Power-off testing |
Six independent test methods for direct connection measurement |
Scheduled outage maintenance and acceptance testing |
| Harmonic content analysis |
Accurate analysis of fundamental wave and 3rd to 7th harmonic contents |
Early detection of internal insulation moisture and valve plate aging |
| Field data management |
120 sets of measurement data with calendar clock and micro printer |
On-site documentation, report printing and maintenance records |
With high-accuracy sampling, advanced Fourier harmonic analysis and a robust wireless design, the XHDD405 helps engineers keep zinc oxide surge arresters in reliable operating condition.
FAQ
Q1: Who is this zinc oxide surge arrester on-line tester designed for?
It is designed for sports stadium and gymnasium electrical maintenance teams, waste-to-energy and biomass power plant electrical departments, meteorological radar and weather observation station maintenance teams, and convention center and exhibition hall facility engineering teams that perform live and power-off inspection of zinc oxide surge arresters.
Q2: What parameters can the XHDD405 tester measure?
It measures total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference, and accurately analyzes fundamental wave and 3rd to 7th harmonic contents of voltage and current waveforms.
Q3: Does the XHDD405 support live-line testing?
Yes. It is designed for live and power-off inspection of ZnO arresters at any voltage level, using electric field induction or wireless transmission instead of the PT secondary connection, with six independent test methods available.
Q4: What are the key design features of the XHDD405?
It features high-accuracy sampling with advanced Fourier harmonic analysis, high-speed magnetic isolation digital sensors for direct voltage and current acquisition, resistive current fundamental peak output and side-phase correction, and an internal battery, calendar clock and micro printer that stores 120 sets of measurement data.
Q5: Why is regular zinc oxide surge arrester inspection important?
Regular inspection enables early detection of critical faults such as internal insulation moisture and valve plate aging, reduces the risk of sudden arrester failures and equipment damage, supports scientific maintenance planning, and extends the service life of arresters.
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