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三、晶体管电机保护器三相感应电动机是油田注水、采油上的主要动力设备,对电机进行自动保护是生产中的一个重要环节。白杨河油矿采用半导体开关电路研制成了一种电机自动保护器。对电机自动保护器的设计要求是:1.在电机发生断相或过载运转时,保护器能自动可靠地切断电源,以保证电机不发生烧损事故。2.电机在故障切断电源停机后,保护器能通过自动化线路,连续向控制室操作人员发出报警讯号,以便能及时排除故障。
Third, the transistor motor protection Three-phase induction motor oil field injection, the main power equipment on the oil, the motor is automatically protected in production is an important part. Poplar River oil mine using semiconductor switching circuit developed into a motor automatic protection. The design requirements of the motor automatic protector are: 1. In the motor phase failure or overload operation, the protector can automatically and reliably cut off the power to ensure that the motor does not occur burning accident. 2. After the motor is shut down in the event of a power failure, the protector can send an alarm signal to the operator of the control room through the automatic circuit so as to promptly eliminate the fault.