CLASSIFICATION AND PRINCIPLES OF CURRENT CONVERTERS STRUCTURE

The article discusses the principles of constructing a new ferromagnetic current converter with an adjustable range in transformer and galvanomagnetic modes and their classification. It is described how to determine the methods for measuring current transducers, as well as the differences between the non-contact method and the contact method. It has been determined that current transducers used in traction power control systems must have advanced measurement functions, adjustable range, linear ramping function, high sensitivity and accuracy, and proportional characteristics even under severe operating conditions. A comparative analysis of the main characteristics of existing current measuring converters showed that transformer and galvanomagnetic measuring converters better meet the requirements of traction power supply control systems.