Hand-held ESDD Measurement: Advancing Insulator Pollution Monitoring

In the electric power industry, insulator contamination remains a critical factor threatening grid safety, potentially leading to flashovers and outages. Accurate and efficient measurement of Equivalent Salt Deposit Density (ESDD) is essential for pollution level assessment and maintenance planning. The ZXYM-02 Hand-held ESDD Tester represents a technological leap, offering significant advantages over traditional methods.

Traditional Challenges vs. Modern Solution

Historically, ESDD measurement involved manual sample collection, lab-based conductivity testing, and complex calculations. This process was not only time-consuming but also required careful handling of cleaning fluids and depended heavily on operator skill, introducing potential for error. Results often failed to reflect real-time conditions accurately.

In contrast, the ZXYM-02 integrates the entire process into a single, hand-held device. It directly measures the ESDD on insulator surfaces in situ with a rapid measurement cycle of just 2 seconds. A key innovation is its ability to automatically convert off-line measured ESDD values to their on-line equivalents, a critical feature for accurately assessing the contamination risk of energized insulators without interruption.

Technical Superiority in Detail

The ZXYM-02's performance is defined by its precise technical indicators:

1.Wide Measurement Range: It covers an ESDD range from 0.0001 mg/cm² to 9.9999 mg/cm² (referenced to the X-4.5 insulator type), suitable for everything from very clean to heavily polluted surfaces.

2.High Precision: With a resolution of 0.0001 mg/cm² and a full-range accuracy of ±2%, it provides highly reliable data for condition assessment.

3.Comprehensive Data: The 2.8-inch true color LCD immediately displays not only the ESDD value but also the corresponding pollution class and RUSCD (Relative Unified Surface Contamination Density), offering a complete diagnostic picture.

4.Temperature Compensation: The instrument automatically compensates for temperature, displaying standardized conductivity and ESDD values at 20°C, ensuring data consistency regardless of ambient conditions.

Operational Efficiency and Data Management

Beyond accuracy, the ZXYM-02 is designed for field efficiency. It features:

1.Automatic Range Switching: Simplifies operation by eliminating manual range selection.

2.Salt Content Auto-Removal: This eliminates the need for separate cleaning fluids, streamlining the workflow.

3.Robust Data Handling: Capable of storing hundreds of thousands of records, the device supports data export via SD card for further analysis on a PC. Users can browse, delete single records, or clear the entire dataset directly on the device.

4.Field-Ready: Powered by a built-in 2600mAh Li-battery and with a hand-held unit weighing only 0.5 kg, it is perfectly suited for extended field use.

Conclusion：

The ZXYM-02 Hand-held Equivalent Salt Deposit Density Tester is a definitive tool for power system technicians and researchers. By combining laboratory-grade accuracy with field-portable convenience and intelligent features like offline-to-online value conversion, it effectively addresses the limitations of traditional ESDD measurement methods. Its adoption enables more proactive, data-driven maintenance strategies, ultimately contributing to enhanced grid reliability and the prevention of pollution-induced flashovers.

GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/