南斯拉夫生产的桑诺斯(SANOS)S411型高级大客车使用了较多的继电器,其中空调起动继电器采用了晶体管电路,体积小巧,结构紧凑,并且具有自动断开起动机电源及停机后延时约10秒再起动的保护功能。但此起动继电器故障率较高,直接影响了空凋装置的使用。我根据修理实践,整理出继电器原理图及维修点滴经验,供同志们参考。 YOSHIN SANOS S411 used this type of high-class bus using more relays, including air-conditioning start-up relays using transistor circuits, small size, compact structure and has the power to automatically disconnect the starter and shut down after a delay of about 10 seconds to restart the protection function. However, the higher starting relay failure rate directly affects the use of empty winking device. According to my repair practice, sorted out the relay schematic and maintenance drip experience for comrades reference.