SGZZ-1A DC Resistance Tester

SGZZ-1A DC Resistance Tester

Overview

The DC resistance test of transformer windings is a test item for transformers after handover, major repairs, and changes to tap changers. Under normal circumstances, measuring the DC resistance of transformer windings and high-power inductive devices using traditional methods such as bridge method and voltage drop method is a time-consuming and labor-intensive task. In order to change this situation, shorten measurement time, and reduce the workload of testers, our company has developed a DC resistance rapid tester. It adopts a new power technology, which has the characteristics of fast measurement, compact size, easy use, and high measurement accuracy. It is an ideal device for measuring the DC resistance of transformer windings and high-power inductive equipment. This product complies with the requirements of the national standards GB6587-86 "General Principles for Environmental Testing of Electronic Measuring Instruments" and GB6593-86 "Quality Verification Rules for Electronic Instruments".

SGZZ-1A DC Resistance Tester

The product series has a high degree of serialization, including 1A, 2A, 3A, 5A, 10A, 20A, 40A, 60A

Product Features

① Intelligent instrument controlled by microcomputer, capable of storing test results;

② AC and DC power supply, portable design, easy to use and carry;

③ By adopting constant current power supply technology, the size, weight, and power consumption of the instrument have been greatly reduced, further shortening the measurement time and ensuring more stable and reliable measurement data.

④ Large screen LCD display, blue backlight, all-weather use;

⑤ Equipped with a micro printer, directly output printing results;

⑥ Built in high volume buzzer with sound prompt function.

⑦ Large capacity battery, three-stage charging circuit, screen display of battery level, automatic shutdown when low voltage, to avoid excessive discharge of the battery;

⑧ This instrument is suitable for measuring and analyzing inductive and low resistance resistors in various types of power transformers, transformer windings, etc.

Performance characteristics and technical indicators

1. Output current and range: Output current: 0-10A, range: 10mW-20KW.

2. Test accuracy: 0.2% maximum resolution: 0.1mW.

3. The instrument adopts a 65K true color LCD display, with Chinese menu prompts and easy operation.

4. It has a large storage capacity and can store 2000 test records,

5. Working power supply: AC220V ± 10%

6. Working temperature: -10 ℃ to 40 ℃.

7. Working humidity: Environmental humidity<80% RH.

8. Instrument weight: 3kg.