Product Introduction:
The electrical integrity of a grounding device refers to the conductive continuity between various electrical equipment and components of the grounding system, measured as the DC resistance value (also known as conductivity). A reliable and effective connection between the ground down-lead and the grounding grid is essential for the safe operation of electrical equipment.
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Product functions:
Grounding continuity testing — Detects the continuity and connection reliability between electrical equipment and the grounding grid.
Low resistance measurement — Measures grounding connection resistance, with a range of 1 to 1999 mΩ and a resolution of 1 mΩ.
Grounding connection fault detection — Can identify issues such as poor contact, corrosion, and breakage in grounding down conductors and connection points.
High-current testing — Supports four test current levels: 1A / 2A / 5A / 10A, with a maximum continuous output of 10A, helping to break through contact oxidation films and improve test reliability.
Rapid on-site testing — Portable design with simple operation, suitable for on-site testing of grounding systems in substations, power plants, transmission lines, photovoltaic, wind power, energy storage, and other applications.
Product Features:
Compact, lightweight, and built with a unified panel and housing structure, the tester offers outstanding portability and shock resistance for easy field use.
Technical parameter
| ช่วงการวัด | 1～1999mΩ |
| ปณิธาน | 1mΩ |
| ทดสอบกระแส | DC1A、2A、5A、10A Four fixed current gears |
| ความแม่นยำในการวัด | ±(0.5%+2d) |
| รัศมีการวัด | 50ม |
| โหมดการแสดงผล | จอแสดงผล LCD 3 1/2 จอแสดงผล LCD |
| โหมดการทำงาน | อย่างต่อเนื่อง |
| แหล่งจ่ายไฟทำงาน | AC220V±10%、50Hz |
| สภาพแวดล้อมการทำงาน | temperature：-10℃～40℃ |
| humidity：≤80%RH | |
| ความชื้นสัมพัทธ์ | ≤80% |
| ขนาด | 300×270×200mm3 |
| น้ำหนัก | 5กก.(ไม่รวมเอกสารแนบ) |
Application Scenarios
Substations
Used to check whether the connections between equipment such as transformers, switchgear, and surge arresters and the grounding grid are reliable, promptly identifying issues such as poor contact, corrosion, or open circuits.
Power plants
Used for grounding connection testing of generators, transformers, and various high-voltage equipment, ensuring that fault currents can flow safely and reliably into the grounding system.
Transmission lines
Used to check the connection status of transmission towers, grounding down conductors, and grounding devices, detecting corrosion, breakage, or connection abnormalities in grounding conductors.
Photovoltaic power plants
Used to check the grounding connections of PV mounting structures, inverters, box-type transformers, and step-up station equipment, ensuring reliable lightning protection and safety grounding for the PV system.
Wind farms
Used to check the grounding connections of wind turbine towers, nacelles, converters, and box-type transformers, ensuring lightning protection and equipment safety for wind turbines.
Energy storage power plants
Used to check the grounding connections of battery compartments, PCS, transformers, and distribution equipment, ensuring that the energy storage system has a reliable grounding path.
Industrial enterprises
Used for grounding testing of transformers, high-voltage cabinets, motors, and other equipment in steel, petrochemical, mining, and other industrial facilities, reducing the risk of equipment failure and electric shock to personnel.
Railways and subways
Used for grounding connection testing of traction substations, power supply equipment, and related electrical facilities, ensuring safe operation of the rail transit power supply system.
Electrical equipment manufacturing and factory testing
Used for grounding connection quality testing of transformers, switchgear, and complete sets of equipment, ensuring that grounding performance meets requirements before product delivery.
Power engineering construction and acceptance
Used for grounding system construction quality inspection and completion acceptance of new substation, photovoltaic, wind power, energy storage, and other projects.
Routine maintenance of power equipment
Used for regular maintenance and preventive testing, quickly identifying abnormal grounding connection resistance and avoiding safety incidents caused by poor grounding.
Frequently Asked Questions
Q:What is a Grounding Ground Continuity Tester?
A:A Grounding Ground Continuity Tester is an electrical testing instrument used to measure the continuity and low resistance of grounding connections. It verifies whether electrical equipment is reliably connected to the grounding system.
Q: What does this device mainly test?
A: It is mainly used to test the continuity and grounding connection resistance between electrical equipment and the grounding grid, determining whether the grounding connection is reliable.
Q: What is the difference between this device and a ground resistance tester?
A: This device is mainly used to test the continuity and low resistance value of grounding connections, determining whether the connection between the equipment and the grounding system is in good condition. A ground resistance tester is mainly used to measure the ground resistance between the grounding system and the earth.
Q: Does the device have anti-interference capability?
A: Yes. It features strong anti-interference capability and can be used for on-site testing of power equipment, ensuring stable and reliable measurement results.
Q: Can it detect poor contact in grounding conductors?
A: Yes. By measuring the low resistance value of grounding connections, it can assist in determining whether there are issues such as poor contact in grounding conductors, connection points, and grounding down conductors.
Q:What is the difference between grounding continuity and grounding resistance?
A:Grounding continuity testing focuses on whether a conductive connection exists and how much low resistance is present along that connection. Grounding resistance testing generally evaluates the resistance between a grounding electrode/system and the surrounding earth. These are different measurements and require different testing methods.
Wuhan UHV Power Technology Co., Ltd. has been deeply engaged in the field of high-voltage power testing equipment for over 20 years.
As a direct-sale manufacturer with our own factory, we combine large-scale production capacity with a strict quality control system, ensuring stable and reliable product performance while offering you more competitive factory-direct prices.
Our core products cover a wide range of high-voltage testing equipment to meet diverse testing requirements. In addition, we can provide professional technical support and flexible customized solutions according to different project specifications.Please contact us for detailed product information and a professional quotation.
