Zinc Oxide Surge Arrester Live Tester | Wireless Series | XHDD405SC
The XHDD405 wireless series live tester for zinc oxide arresters supports energized and non-energized detection for all voltage-class arresters. It helps identify critical defects such as internal insulation dampness and valve element aging at an early stage, reducing the risk of sudden arrester failures in service.
It can test total current, resistive current and harmonics, power frequency voltage and harmonics, active power and phase difference. The large screen displays real-time voltage and current waveforms, and precisely analyzes the fundamental wave and 3rd to 7th harmonics.
Applications & Target Audience: Engineered for lightning protection testing and inspection service companies, power grid substation operation and maintenance teams, building lightning protection acceptance inspection institutions, and power grid live-line detection and online monitoring teams that perform energized and non-energized testing of zinc oxide surge arresters across all voltage classes.
Key Advantages
Adopts high-precision sampling and professional Fourier harmonic analysis;
High-speed magnetic isolation digital sensors for direct voltage and current input;
Uses electric field induction or wireless transmission to replace PT secondary connection;
Provides six independent test methods;
Supports resistive current fundamental peak output and side-phase correction;
Built-in rechargeable battery, real-time clock and micro printer; stores up to 120 test data.
Measurement Functions and Application Scenarios
The XHDD405 measures the key electrical parameters that reflect the operating condition of zinc oxide surge arresters. The table below summarizes the measurement functions and their typical application scenarios:
| Measurement Function |
What It Measures |
Typical Application Scenarios |
| Total Current and Resistive Current |
Total leakage current and its resistive component under working voltage |
Assessing valve element aging and internal insulation dampness of MOA arresters |
| Harmonic Analysis |
Fundamental wave and 3rd to 7th harmonics of voltage and current waveforms |
Detecting harmonic-related deterioration and waveform distortion trends |
| Power Frequency Voltage and Active Power |
Power frequency voltage, active power and phase difference |
Evaluating arrester operating status under normal power frequency conditions |
| Energized / Non-energized Testing |
Live-line measurement via electric field induction or wireless transmission, replacing PT secondary connection |
Routine live-line inspection and outage maintenance testing of arresters |
Regular testing of zinc oxide surge arresters enables maintenance engineers to detect insulation dampness and valve element aging before they develop into failures, helping to plan maintenance work scientifically and extend the service life of arresters and protected equipment.
FAQ
Q1: Who is this zinc oxide surge arrester tester designed for?
It is designed for lightning protection testing and inspection service companies, power grid substation operation and maintenance teams, building lightning protection acceptance inspection institutions, and power grid live-line detection and online monitoring teams that perform energized and non-energized testing of zinc oxide surge arresters across all voltage classes.
Q2: What parameters can the XHDD405 tester measure?
It measures total current, resistive current and harmonics, power frequency voltage and harmonics, active power and phase difference, and precisely analyzes the fundamental wave and 3rd to 7th harmonics of voltage and current waveforms.
Q3: Does the XHDD405 support live-line (energized) testing?
Yes. It supports energized and non-energized detection for all voltage-class arresters. It uses electric field induction or wireless transmission to replace the PT secondary connection, provides six independent test methods, and supports resistive current fundamental peak output and side-phase correction.
Q4: What are the key design features of the XHDD405?
It adopts high-precision sampling with professional Fourier harmonic analysis, high-speed magnetic isolation digital sensors for direct voltage and current input, a built-in rechargeable battery, a real-time clock and a micro printer, and can store up to 120 test data records.
Q5: Why is regular zinc oxide surge arrester testing important?
Regular testing helps identify critical defects such as internal insulation dampness and valve element aging at an early stage, reduces the risk of sudden arrester failures, supports scientific maintenance planning, and extends the service life of arresters and the protected power equipment.
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