Advanced Ground Resistance Measurement with the ZXET3006 Double Clamp Tester

A reliable grounding system is fundamental to the safety and operational integrity of electrical power, telecommunications, and various electrical equipment installations. The performance of such a system is primarily evaluated based on its earth resistance. Consequently, the ability to perform accurate, rapid, and straightforward earth resistance measurements is a critical requirement in the field of lightning protection and grounding. The ZXET3006 Multifunction Dual-Clamp Earth Resistance Tester addresses this need with a versatile and innovative approach, offering both traditional and advanced measurement methodologies.

Innovative Measurement Principle

A key innovation of the ZXET3006 is its ability to measure earth resistance without auxiliary ground electrodes. This is achieved through its double-clamp, non-contact measurement method. This technique revolutionizes traditional testing by eliminating the need for driving stakes into the ground, saving significant time and labor, especially in areas with rocky or paved terrain where installing auxiliary electrodes is challenging. The instrument can also be used with the conventional ground piles method, providing flexibility for various site conditions, whether measuring single-point or complex multi-point grounding systems.

Key Technical Features and Advantages

1.Dual Methodology: The tester supports both the double-clamp method and the ground piles method within a range of 0.01Ω to 200Ω, making it suitable for virtually any grounding measurement scenario.

2.High Immunity to Interference: The instrument generates its own high-frequency test current, which allows it to effectively filter out 50Hz and 100Hz harmonic interference. This ensures accurate and stable readings even in highly noisy electromagnetic environments, such as 500kV substations.

3.Precision and Resolution: With a wide measurement range and a high resolution of 0.01Ω, the ZXET3006 can precisely measure very low resistance values, including those below 0.7Ω, which is crucial for assessing high-quality grounding systems.

4.Large Claw Design: The standard 50mm jaw diameter accommodates common grounding conductors like flat steel strips or round steel wires. Custom jaw sizes are also available for specialized applications.

5.Data Management and Portability: The device can store up to 200 measurement data sets, facilitating record-keeping and trend analysis. Its compact design (265×130×65mm), light weight (0.8kg), and use of standard AA batteries (rechargeable NiMH or regular) make it highly portable and ideal for field use by a single operator.

Technical Specifications Summary

1.Measurement Range: 0.01Ω ~ 200Ω (Both Methods)

2.Accuracy:

Double Clamp Method: ±3% ±2 digits

Ground Piles Method: ±2% ±2 digits

3.Resolution: 0.01Ω

4.Claw Size: 50mm

5.Data Storage: 200 groups

6.Operating Temperature: 0°C to +50°C

7.Power Supply: 8 x AA batteries

Conclusion

The ZXET3006 Double Clamp Grounding Resistance Tester represents a significant advancement in earth resistance measurement technology. By combining the convenience and speed of the non-contact double-clamp method with the reliability of the traditional ground piles technique, it provides electrical technicians and engineers with a powerful, accurate, and efficient tool. Its robust design, strong anti-interference capability, and user-friendly features make it an excellent choice for a wide range of applications, from power utilities and telecommunications to industrial plant maintenance and lightning protection system verification.

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/