Zinc Oxide Surge Arrester Live Tester | Wireless Series with Built-in Battery | XHDD405SC
The XHDD405SC wireless series live testing device for ZnO arresters is used for both energized and de-energized tests of arresters of any voltage class. It can effectively discover hidden troubles like internal insulation moisture and valve plate deterioration at an early stage.
It is capable of measuring total current, resistive current and harmonics, fundamental reference voltage and harmonics, active power and phase difference. Real voltage and current waveforms are shown on the large display, with accurate analysis of fundamental and 3rd to 7th harmonic components.
Applications & Target Audience: Engineered for home appliance and consumer electronics manufacturers' electrical safety testing departments, insurance loss adjustment and electrical risk assessment institutions, pharmaceutical and biotechnology plant electrical maintenance teams, and logistics park and cold chain warehouse facility electrical teams that perform energized and de-energized testing of zinc oxide surge arresters to prevent insulation moisture and valve plate deterioration.
Performance Characteristics
High-accuracy sampling technology and Fourier transform harmonic analysis;
Direct signal collection via high-speed magnetic-isolated digital sensors;
PT secondary circuit replaced by electric field induction or wireless transmission;
Six optional testing modes;
Equipped with resistive current fundamental peak output and side-phase correction;
Integrated battery, calendar clock and micro printer; supports 120 data records.
Measurement Functions and Diagnosis Value
Each measurement function of the XHDD405 corresponds to a specific diagnostic purpose. The table below helps maintenance engineers understand what each parameter reveals about arrester condition:
| Measurement Function |
What It Reveals |
Diagnosis Value |
| Total Current and Resistive Current |
The resistive component of the leakage current under working voltage |
Detects valve plate deterioration and internal insulation moisture |
| Fundamental Reference Voltage and Harmonics |
Reference voltage level and its harmonic content |
Evaluates arrester reference voltage drift and aging trend |
| Active Power and Phase Difference |
Power consumption and phase relationship of the arrester circuit |
Assesses overall operating condition under power frequency voltage |
| 3rd to 7th Harmonic Analysis |
Harmonic components of voltage and current waveforms |
Identifies waveform distortion caused by harmonic stress |
Technical Specifications
| Parameter |
Specification |
| Full current measurement range |
0 ~ 10mA RMS, ±(5% + 5uA) |
| Resistive current fundamental wave measurement accuracy |
±(5% + 5uA) |
| Current harmonic measurement |
±(10% + 10uA), input resistance ≤2Ω |
| Reference voltage input range |
25V ~ 250V RMS, ±(5% + 0.5V) |
| Voltage harmonic measurement |
±(10% of reading), input resistance ≥1800kΩ |
| Wireless frequency |
433MHz, transmission distance 100 meters |
| Continuous operating time |
Over 8 hours; charging time over 6 hours |
| Charging power supply |
AC 220V ±10%, 50Hz ±1% |
| Weight |
5kg |
With its built-in battery, calendar clock and micro printer, the XHDD405SC supports up to 120 data records, making it convenient for on-site testing, data archiving and report printing.
FAQ
Q1: Who is this zinc oxide surge arrester tester designed for?
It is designed for home appliance and consumer electronics manufacturers' electrical safety testing departments, insurance loss adjustment and electrical risk assessment institutions, pharmaceutical and biotechnology plant electrical maintenance teams, and logistics park and cold chain warehouse facility electrical teams that perform energized and de-energized testing of zinc oxide surge arresters.
Q2: What parameters can the XHDD405SC tester measure?
It measures total current, resistive current and harmonics, fundamental reference voltage and harmonics, active power and phase difference, and accurately analyzes fundamental and 3rd to 7th harmonic components of voltage and current waveforms.
Q3: What are the measurement ranges and accuracy of the XHDD405SC?
The full current measurement range is 0 ~ 10mA RMS with accuracy of ±(5% + 5uA); the reference voltage input range is 25V ~ 250V RMS with accuracy of ±(5% + 0.5V); current harmonic measurement is ±(10% + 10uA) with input resistance ≤2Ω; voltage harmonic measurement is ±(10% of reading) with input resistance ≥1800kΩ.
Q4: What are the wireless transmission and battery features?
The tester uses 433MHz wireless transmission with a distance of 100 meters, and electric field induction or wireless transmission replaces the PT secondary circuit connection. The built-in battery supports over 8 hours of continuous operation with a charging time of over 6 hours.
Q5: What data management functions does the XHDD405SC provide?
It provides an integrated battery, calendar clock and micro printer, and supports up to 120 data records, enabling convenient on-site testing, waveform and data archiving, and report printing for maintenance records.
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