Wuhan Hengxin Guoyi Technology Co., Ltd. produces grounding and down-line conduction tester, also known as grounding conduction tester, grounding and down-line conduction resistance tester, grounding network grounding conduction tester and conduction tester, grounding lead The down-line conduction tester is suitable for the conductivity detection of the connection between the power equipment and the ground network during the power department engineering test, and the ground-leading down-line conduction tester is suitable for the measurement of low resistance value resistance. The grounding lead-down conduction tester conducts electrical integrity test on the grounding device.

The electrical integrity of the grounding device refers to the electrical connection between various electrical equipment, the parts of the grounding device and the equipment, that is, the DC resistance value, also known as electrical conductivity. The reliable and effective connection between the grounding lead of the power equipment and the ground network is the fundamental guarantee for the safe operation of the equipment. The grounding lead is the connecting part between the power equipment and the ground network. During the long-term operation of the power equipment, the connection may be affected by moisture and other factors, resulting in the grounding lead and main. The resistance of the grounding grid connection point increases, which cannot meet the requirements of power regulations, causing unsafe risks in the operation of the equipment, which will cause the equipment to lose ground operation in serious cases. The underground grounding pole and its connecting part of the grounding device may also undergo rust or even breakage. Therefore, it is necessary to regularly use the grounding lead-down conduction tester to conduct electrical integrity testing on the grounding device.

Power Industry Standard DL/T475-2006 "Guidelines for Measurement of Characteristic Parameters of Grounding Devices" stipulates that electrical conductivity should be measured using a special tester. The resolution of the grounding lead-through conduction tester is 1mΩ and the accuracy is not lower than that of Level 1.0. The grounding lead-down conduction tester developed by our company based on this standard is a portable tester with a high degree of automation. The grounding lead-down conduction tester is specially used for electrical integrity testing of grounding devices. Its various items All technical indicators meet or exceed the relevant standard requirements. The grounding lead-off conduction tester is simple and convenient to operate, has high accuracy, fast test speed, good retestability and intuitive reading. It is an ideal special tester that meets the requirements of the regulations. It greatly facilitates the development of the test project and improves the work efficiency.

The grounding lead-down conduction tester is suitable for measuring the on-resistance value between the grounding lead-down line of the power equipment and the grounding network (or adjacent equipment). The grounding lead-down conduction tester is also suitable for low resistance. Measurement of value resistance.

Grounding conduction tester function:

1. Power supply technology: Adopt the latest power supply technology, output 10A current, can work continuously for a long time, overcome the disadvantages of instantaneous current of the pulsed power supply, effectively breaking down the contact oxide film, and obtaining good test results
2. Anti-interference ability Strong: Under severe interference conditions, the last bit of the LCD screen can be stable within ±1 word range, the reading is stable, and the repeatability is good.
3. Long service life: The grounding lead-down conduction tester uses high-precision resistance. Effectively eliminate the impact of ambient temperature on the measurement results, and at the same time, the use of military connectors enhances vibration resistance.
4. Simple operation: Just press the measurement key to obtain the measurement results. The measurement results are displayed with LCD LCD backlight, with intuitive readings and good repeatability.
5. Easy to carry: The grounding lead-down conduction tester adopts a portable design, small size and light weight. The panel and the chassis are integrated, with good shock resistance

Technical parameters:

1. Measuring range: 1～1999mΩ
    2. Resolution: 1mΩ
    3. Test current: DC 10A

    4. Measuring accuracy: ± (0.5%+2d)
    5. Measuring radius: 50 meters
    6. Display mode: LCD backlight display
    7. Working mode: Continuous
    8. Working power supply: AC220V±10% 50Hz
    9. Working environment: Temperature- 10℃～40℃ Humidity: ≤80 %RH
    10, Volume: 300×270×200 mm3
    11, Weight: 5kg (excluding accessories)