1 Touch screenDC resistance testerOverview

For the power system, transformers are the core equipment in the system, so the long-term and reliable operation of transformers is related to the stability and reliability of the entire system.

The DC resistance of transformers is a necessary test item for semi-finished and finished products in transformer manufacturing, factory testing, installation, handover testing, and preventive testing by the power department. It can effectively detect manufacturing defects such as material selection, welding, loose connection parts, missing strands, and broken wires of transformer coils, as well as hidden dangers after operation.In order to meet the needs of rapid measurement of DC resistance in transformers, our company has developed using our own technological advantagesA transformer DC resistance tester. This instrument is a setThree phase testing（and Y,andDemagnetization functionThe new generation of rapid testing equipment integrated into one isIdeal equipment for measuring the DC resistance of large power transformers.The screen adopts a true color high-resolution industrial display screen, full touch operation, with Chinese menu prompt function, easy and intuitive operation, fast testing speed, high accuracy, and wide range.

2 touch screenDC resistance testerpackage contents

After receiving the shipping packaging box, open the box and check for any damage. If the shipping packaging box is damaged or the cushioning material has pressure marks, please notify the shipping company and the nearest sales office of our company.

Please check if you have received the following items in the entire set of equipment:

Standard configuration:

√ 1 tester

√ 1 set of test lines (yellow, green, red, black each)1Article)

√ 1 three core power cord

√ 1 grounding wire

√ 3 insurance tubes

√ 2 rolls of printing paper

√ 1 printed user manual

√ 1 factory test report

√ 1 certificate of conformity and warranty card

3 Main functions and features

3.1 ForYn type, Y type, and △ type windings can all be tested using three-phase measurement method, and the three-phase unbalance rate can be calculated.

3.2 Test the maximum output current of the power supply20A， Test range 0~200Ω, meeting the testing requirements of the vast majority of transformers; And it has demagnetization function, which canReduce the harm of high residual magnetism in transformers during high current testing.

3.3 The testing process can automatically calculate5S、15S、30The rate of change in resistance value within S can assist testers in determining the stability of test data and prevent misreading of data.

3The instrument has multiple protection functions such as back electromotive force protection, wire breakage protection, and power-off protection.

3.5 The instrument is equipped with a thermal printer, which stores data locally200Supports massive storage on USB drives.

3.6 industrial-grade7The inch true color large screen display, with a fresh and simple display style design and full touch operation, creates a comfortable and convenient human-computer interaction experience for you.

4 Main technical indicators