HSDT-100A Ground Continuity Tester

HSDT-100A Ground Continuity Tester

Technical Parameters

1. Overview

The reliable and effective connection between the grounding lead of power equipment and the ground grid 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 grid. During the long-term operation of the power equipment, the connection point may be affected by moisture and other factors, resulting in corrosion or even breakage of the contact, which will increase the resistance of the connection point between the grounding lead and the main grounding grid, thereby failing to meet the requirements of the power regulations, causing unsafe hidden dangers in the operation of the equipment, and in serious cases, causing the equipment to lose ground. Therefore, in the "Twenty-five Key Requirements for Preventing Major Accidents in Power Production", it is clearly stated that the continuity detection of the grounding device lead should be carried out once a year.

The grounding continuity resistance tester is a highly automated portable tester developed by our company, which is used to measure the continuity resistance value between the grounding leads of various power equipment in the substation. The instrument adopts high-performance single-chip control, which can realize the intelligent test process. It has small size, easy to carry, simple operation, high accuracy, fast test speed, good reproducibility, and intuitive readings. It is an ideal special instrument that meets the requirements of the regulations.

2. Performance characteristics

1. The whole machine is controlled by a high-speed single-chip microcomputer, with a high degree of automation and easy operation.

2. It adopts high-frequency switching power supply technology and has a large output current.

3. The protection function is perfect and the performance is more reliable.

4. The response speed is fast, and the instrument automatically refreshes the data.

5. It adopts a vertical chassis structure, which is convenient for on-site use.

6. Intelligent power management technology, the instrument always works in the minimum power state, effectively reducing the internal heating of the instrument and saving energy.

7. Dot matrix LCD, Chinese menu, print output.

3. Technical indicators

1. Output current: 10A, 20A, 40A, 100A

2. Range: 10μΩ～100mΩ (100A)

100μΩ～500mΩ (40A)

200μΩ～1Ω (20A)

500μΩ～2Ω (10A)

3. Accuracy: 0.2%

4. Resolution: 0.1μΩ

5. Working temperature: 0～40℃

6. Ambient humidity: ≤90%RH, no condensation

7. Working power supply: AC220V±10%, 50HZ±1HZ

8. Net weight: 17KG

9. Dimensions: 400*230*380

4. Completeness of the instrument