Industry News
- Introduction of Transformer Turns Ratio ErrorTransformer turns ratio measurementGenerally judging the quality of a transformer requires the following tests: AC withstand voltage, DC resistance, turns ratio, capacity, Load and no-load loss. For the turns ratio test, it is mainly to measure the actual transformer turns ratio error. The nameplateIndustry News July 16, 2021
- What should we notice when testing the DC resistance of the transformer?1. The measurement should generally be performed after the oil temperature has stabilized. Only after the oil temperature is stable, the oil temperature can be equal to the winding temperature, and the measurement result will not cause temperature conversion errors due to temperature differences.ForIndustry News April 16, 2021
- When do you need Transformer Sweep Frequency Response Analyzer SFRA?GDRZ-902 Transformer Sweep Frequency Response SFRA Analyzer is used to check the frequency response data of transformer winding.Industry News March 12, 2021
- Why We Need Do Transformer Oil Breakdown Voltage Test?Transformer oil mainly plays a role of insulation and cooling during the operation of power transformers. Therefore, transformer oil must have a certain electrical insulation strength during the operation of power transformers. In order to ensure the safe and reliable operation of power transformersIndustry News February 22, 2021
- How to choose test current of our GDZC Transformer Winding Resistance Tester?The transformer DC resistance tester is subdivided into various specifications such as 1A, 3A, 5A, 10A, 20A, 40A, 50A, 100A, etc. The power supply of the instrument is divided into external power supply AC220V, internal power supply (battery power supply), AC and DC power supply, etc. At present, thIndustry News January 08, 2021
- How to choose oil-immersed, gas-filled and dry test transformers?No matter what kind of test transformer, its main function is to test the insulation strength and withstand voltage of electrical equipment, and obtain the insulation performance of electrical equipment and the ability to withstand overvoltage. But its main difference lies in its structure and workiIndustry News November 27, 2020
- Why we need GDRZ-902 Transformer SFRA?After the transformer is designed and manufactured, its coil and internal structure are determined. Therefore, for a multi-winding transformer coil, if the voltage level is the same and the winding method is the same, the corresponding parameters (Ci, Li) of each coil should be Is ok. Therefore, theIndustry News June 16, 2020
- 4 Sets Transformer Testing Equipment to BulgariaOne of our Bulgarian customer ordered 4 sets following equipment for Z type transformer testing from our company in December, 2017.Industry News February 02, 2018