Zinc Oxide Surge Arrester Live Tester | Wireless Series XHDD405
The XHDD405 wireless series live arrester tester supports both live and off-line detection for zinc oxide arresters of all voltage classes, effectively identifying risks including insulation dampness and valve element degradation.
It measures total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference. The large-screen display shows real voltage and current waveforms, and precisely calculates fundamental and 3rd to 7th harmonic components.
Applications & Target Audience: Engineered for grain storage and agricultural product warehouse facilities, seismic monitoring station maintenance teams, bank and financial institution facility electrical departments, and government office building facility management teams that perform live and off-line detection of zinc oxide surge arresters of all voltage classes.
Key Features
High-precision sampling and Fourier harmonic analysis;
Direct signal acquisition via high-speed magnetic-isolated digital sensors;
PT secondary wiring replaced by electric field induction or wireless transmission;
Six optional test modes;
Functions of resistive current fundamental peak output and side-phase correction;
Integrated battery, real-time clock and mini printer; stores 120 test records.
Measurement Functions and Detection Workflow
The XHDD405 supports a complete detection workflow from risk identification to on-site reporting. The table below summarizes the measurement functions and the detection workflow:
| Detection Stage |
What It Does |
Workflow Benefit |
| Risk identification |
Measures total current and resistive current to identify insulation dampness and valve element degradation |
Detects hidden risks at an early stage |
| Live-line detection |
PT secondary wiring replaced by electric field induction or wireless transmission for energized measurement |
Testing without power outage |
| Off-line detection |
Direct connection measurement with six optional test modes |
Comprehensive assessment during scheduled maintenance |
| Analysis and reporting |
Precisely calculates fundamental and 3rd to 7th harmonic components; stores 120 test records and prints with the mini printer |
Traceable, professional maintenance documentation |
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 integrated battery, real-time clock and mini printer, the XHDD405 provides a complete, portable solution for zinc oxide surge arrester live-line and off-line testing.
FAQ
Q1: Who is this zinc oxide surge arrester tester designed for?
It is designed for grain storage and agricultural product warehouse facilities, seismic monitoring station maintenance teams, bank and financial institution facility electrical departments, and government office building facility management teams that perform live and off-line detection 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 precisely calculates fundamental and 3rd to 7th harmonic components of voltage and current waveforms.
Q3: Does the XHDD405 support both live-line and off-line testing?
Yes. It supports both live and off-line detection for zinc oxide arresters of all voltage classes. For live-line testing, the PT secondary wiring is replaced by electric field induction or wireless transmission; for off-line testing, six optional test modes are available.
Q4: What are the key technical specifications of the XHDD405?
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); wireless frequency is 433MHz with 100 meters transmission distance; continuous operating time is over 8 hours and weight is 5kg.
Q5: What data management functions does the XHDD405 provide?
It provides an integrated battery, real-time clock and mini printer, and stores up to 120 test records, enabling convenient on-site testing, data archiving and report printing for maintenance records.
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