RuiDu Mechanical and Electrical (Shanghai) Co., Ltd

 

RDWR-5A ground grid tester is specialized for measuring grounding resistance and grid conduction between grounding points. Utilizing frequency conversion anti-interference technology, it delivers precise 50Hz data even in substation environments with strong interference. Results are displayed on a large LCD screen and can be printed using the built-in micro printer. This streamlined tester simplifies testing, improves accuracy, and reduces labor intensity and costs while providing a comprehensive view of grounding grid characteristics.

 

 

• High Precision Measurement:

  -RDWR-5A ground grid tester utilizes a sinusoidal current waveform for testing, providing precise 50Hz frequency measurements with an error margin of just 0.005Ω. Suitable for both 50Hz and 60Hz frequency measurements.

 

• Robust Anti-interference Capability:

  -Employs an asynchronous frequency measurement technique along with advanced filtering technology, guaranteeing exceptional anti-interference capabilities and delivering stable and precise test results.

 

• Versatile Testing Capabilities:

  - RDWR-5A Encompasses various tests, including current and voltage piles, ground grid impedance, grounding resistance, and more, offering a comprehensive view of the grounding grid's characteristics.

 

• Intuitive Operation And Clear Display:

  -Equipped with a full-touch LCD, the interface is intuitive and clear, requiring no specialized training. Testing can be effortlessly completed with a simple touch.

 

• Intelligent Data Management And Export:

  -Earth grid resistance tester features smart data management for easy export. Specialized software facilitates data analysis, report generation on any PC, and quick access to historical records.

 

• Safe And Reliable Design:

  -Comprehensive safety measures, including grounding protection, current and voltage limiting, and audio-visual alarms, ensure the safety of both test personnel and equipment, reducing on-site wiring for enhanced testing efficiency.

 

Q： What if earth resistance is high?

A： High earthing resistance can pose several risks, notably an elevated chance of electric shock. This is attributed to higher voltages on exposed metal parts of electrical equipment. It is crucial to address elevated earthing resistance promptly to mitigate these potential safety hazards.

 

Q： Why earthing resistance is kept low?

A： Low earthing resistance is crucial for safety, equipment protection, system performance, compliance with standards, and overall electrical reliability. It ensures effective dissipation of fault currents, stabilizes voltages, protects against damage, enhances device performance, and maintains a stable reference point for the electrical system. In summary, it safeguards lives, equipment, and system functionality while meeting industry standards.

 

Q： Why is earth ground testing important?

A： Insufficient grounding poses risks of equipment failure and safety hazards. Properly grounded electrical systems provide a safe path for current during events like lightning strikes or overvoltages, ensuring protection.

 

 

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