SFA-106B Series Automatic Transformer Comprehensive Characteristics Tester is specially designed to test transformer voltage-current characteristics, 5% and 10% error curves, secondary circuit check, ratio and polarity judgment. Only need to set the highest test voltage, current and step length, the device will automatically increase the voltage, automatically draw the voltage-current curve, save the manual adjustment, manual recording, drawing curves and other tedious work. Fast, simple and convenient. If the single machine cannot meet the test requirements, an external booster can be used for the test. It is a high-performance and cost-effective multi-function test instrument. Its performance is unique, and this instrument is currently in the leading position in China.

SF-3D motor protection tester is a professional device for the calibration of motor protection devices and current type motor protection devices, thermocouples. It is suitable for various thermal relays and various active and passive motor protection devices for the action current and time testing, and can also test the action current of the current relay and the action time of the rated current.