小型大功率塑封继电器性能和触点分析

Analysis of the Behavior of Small High Power Plastic Encapsulated Relays and the Properties of the Contacts Used

小型大功率塑封继电器广泛应用于家电产品和工业领域。购买了市场常见的5款型号为T90的30 A塑封型继电器,重点比较分析了这些继电器的机械参数、电气参数、触点材料以及电寿命等。研究发现,这些继电器的机械电气参数比较接近,但触点材料和电寿命差别较大,这些数据可为触点材料的研究和应用提供一定的依据。

Small high-power plastic-encapsulated relays are widely used in household appliances and industrial applications.5 common 30A plastic-encapsulated relays(model T90)produced by different manufacturers were analyzed on the mechanical parameters,electrical parameters,contact materials and electrical life.Studies have found that the mechanical and electrical parameters of these relays are relatively close,but the contact materials and electrical life are quite different.The data obtained can provide as a certain basis for the development and application of the contact materials.