Product Introduction:
Wuhan UHV Power Technology Co.,Ltd., is a professional manufacturer and supplier of high-voltage power testing equipment in China.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 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
| 측정 범위 | 1～1999mΩ |
| 해결 | 1mΩ |
| 테스트 전류 | DC1A、2A、5A、10A Four fixed current gears |
| 측정 정확도 | ±(0.5%+2d) |
| 측정 반경 | 50m |
| 디스플레이 모드 | 3 1/2 LCD 디스플레이 LCD 디스플레이 |
| 작업 모드 | 계속해서 |
| 작업 전원 공급 장치 | AC220V±10%、50Hz |
| 근무 환경 | temperature：-10℃～40℃ |
| humidity：≤80%RH | |
| 상대습도 | ≤80% |
| 치수 | 300×270×200mm3 |
| 무게 | 5kg(부속품 제외) |
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 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.
