Research And Implementation Of Soft Starter Test Method

The starting method is the weighty consideration of asynchronous motors.The development and research of softstarter is the cost effective starting method and had been sustainable growth in the field without speed control.This make that the development and research of softstarter becoming more and more important.The softstarter can improve the voltage drop caused by impulse current and the mechanical wear caused by impulse torque.At the same time,there are some special motor load requires the asynchronous motor start and stop with special controlling method instead of direct on line.The soft starter will get a huge advantage in the asynchronous motor application which running without speed control,and it is being more and more popularity in the market.The soft starter testing system is under start-up stage.Firstly,the paper researches the development stage domestic and overseas.Discusses the principle and effect for the soft starter from the view of voltage,current and torque.Researches the structure and composition of a normal soft starter.At the same time,analyzes the feather of voltage,current and torque of different start and stop method.This paper introduces and analyzes the most important parameter.Make the design of soft starter testing system accordingly.This paper focused research the development of soft starter testing system.Researches the method to implement the dynamic load test.Compares the advantage and disadvantage of actual load,magnetic powder brake and dynamic load with drive.Focused analyzes the principle of dynamic load with drive.Base on this to implement the research and application for soft starter dynamic load testing system.At last,based on the research above,research and design a complete testing method.After tested with this system and analyzed the testing result,the feasibility of testing system was improved.