Y-△降压起动电路的改进设计  

Improved Design of Y-△ Reduced-voltage Starting Circuit

作　　者：楼晓春[1,2] 陈华凌[2] 

机构地区：[1]浙江工业大学,浙江杭州310018 [2]杭州职业技术学院,浙江杭州310018

出　　处：《机电产品开发与创新》2010年第3期139-140,100,共3页Development & Innovation of Machinery & Electrical Products

摘　　要：Y-△降压起动在大功率的笼型异步电动机起动控制广泛应用。常用的Y-△降压起动电路经常发生接触器主触点烧毛、熔焊的故障,影响电路工作的可靠性。本文在对常用Y-△降压起动电路进行分析的基础上,采用PLC进行了改进设计。Y-△ reduced-voltage starting is widely used in high power cage asynchronous motor.In the Y-△ reduced-voltage starting circuit,some defects are found in design of the main circuit.For example,the contactor main-contact is break down,melt is welded.These in fluence the reliability of the circuit.Based on analysis for the main circuit,improving method by PLC is put forward.

关 键 词：Y-△降压起动 故障 PLC 改进 

分 类 号：TM32[电气工程—电机]