Handheld Zinc Oxide Surge Arrester Live Tester | XHDD405 Wireless Series
The XHDD405 handheld live-line tester is 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, helping maintenance teams act before failures occur.
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.
Applications & Target Audience: Engineered for broadcast and television transmission tower maintenance teams, cultural heritage building and museum lightning protection departments, amusement park and outdoor attraction electrical safety teams, and printing and packaging plant electrical departments that perform live and off-line testing of zinc oxide surge arresters at all voltage levels.
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.
Live-Line Testing Scenarios and Benefits
The handheld design and wireless measurement capability of the XHDD405 make it suitable for a wide range of on-site scenarios. The table below summarizes typical testing scenarios and their benefits:
| Application Scenario |
How It Works |
Key Benefit |
| Routine live-line inspection |
Electric field induction or wireless transmission replaces PT secondary wiring for energized measurement |
No outage required; detects insulation dampness and valve block aging in time |
| De-energized maintenance testing |
Direct connection testing with six available test methods |
Comprehensive assessment of arrester condition during scheduled outages |
| Harmonic condition monitoring |
Fourier harmonic analysis of fundamental wave and 3rd to 7th harmonics |
Early warning of waveform distortion and harmonic stress |
| On-site data management |
Stores 120 groups of data and prints records with the mini printer |
Complete, traceable maintenance documentation |
With its built-in battery, clock and mini printer, the XHDD405 is a reliable companion for field engineers who need accurate, portable and efficient zinc oxide surge arrester testing.
FAQ
Q1: Who is this handheld zinc oxide surge arrester tester designed for?
It is designed for broadcast and television transmission tower maintenance teams, cultural heritage building and museum lightning protection departments, amusement park and outdoor attraction electrical safety teams, and printing and packaging plant electrical departments that perform live and off-line testing 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 the fundamental wave and 3rd to 7th harmonics of voltage and current waveforms.
Q3: Does the XHDD405 support live-line testing?
Yes. It supports live and off-line testing of zinc oxide arresters at all voltage levels, using electric field induction or wireless transmission instead of PT secondary wiring, with six test methods available and resistive current fundamental peak output and side-phase correction functions.
Q4: What are the key design features of the XHDD405?
It features high-precision sampling with Fourier harmonic analysis, high-speed magnetic isolation digital sensors for direct voltage and current acquisition, a built-in battery, clock and mini printer, and storage capacity for 120 groups of data.
Q5: Why is regular zinc oxide surge arrester testing important?
Regular testing detects potential risks such as internal insulation dampness and valve block aging in a timely manner, 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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