在铁路通信集中电话机当中,JRXB—1微型继电器运用最多,最易出事,平均每台就有一百多组接点,如果其中有一组接点接触不良,就不能正常通话,以致影响运输生产和接发列车。因此,在轮修出所前必须对此继电器进行调整和老化性能试验,把故障消灭于出所之前,为了方便调整试验,我们研制了“JRXB—1型继电器自动老化测试器”。 JRXB-1 miniature relays are the most used and the most prone to accidents in railway communication centralized telephones. Each has an average of over 100 sets of contacts. If there is a group of contacts in poor contact, it will not be able to communicate normally, so as to affect the transportation and manufacturing. Train. Therefore, the wheel must be repaired before the adjustment and aging of the relay performance test, the failure is eliminated before leaving, in order to facilitate the adjustment test, we developed a “JRXB-1 automatic aging tester relay.”