HSDT-50A Ground Continuity Tester

HSDT-50A Ground Continuity Tester

Technical Parameters

1. Overview

The reliable and effective connection between the grounding conductor of the power equipment and the ground grid is the fundamental guarantee for the safe operation of the equipment. The grounding conductor 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 conductor 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 down conductor should be carried out once a year.

The grounding conductor continuity tester is a highly automated portable tester developed by our company. It is used to measure the continuity resistance value between the grounding conductors 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.

II. Performance characteristics

1. The instrument provides 5 output current options, with a maximum current of 50A and a minimum current of 2A;

2. The instrument has a wide measurement range and high test accuracy;

3. The instrument responds faster and automatically refreshes data;

4. The instrument uses a 7-inch color LCD screen and a full Chinese operation interface. The interface display is clear and beautiful, and the output results can be printed in real time;

5. It has an RS485 communication interface, which can transmit test data to the background;

6. The machine has a large storage capacity and can store up to 500 test records;

7. It has a USB interface, which can transfer test data to a USB flash drive;

8. This instrument uses an industrial plastic shell chassis, which is easy to carry.

3. Technical indicators

1. Output current: 50A, 20A, 10A, 5A, 2A

2. Range: 40μΩ～400mΩ (50A)

100μΩ～1Ω (20A)

500μΩ～2Ω (10A)

1mΩ～4Ω (5A)

2mΩ～10Ω (2A)

3. Accuracy: ±(0.2%+2 characters)

4. Resolution: 0.1μΩ

5. Working temperature: -10℃～40℃

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

7. Altitude: ≤1000 meters

8. Working power supply: AC220V±10%, 50Hz±1Hz

9. Dimensions: 428mm*350mm*230mm

10. Instrument weight: 10.9kg

IV. Instrument completeness