GE IC697ACC722B是继电保护装置的电路板。

继电保护装置是能够向运行值班人员及时发出警告信号，或者直接向所控制的断路器发出跳闸命令以终止这些事件发展的一种自动化措施和设备。实现这种自动化措施的成套设备，一般通称为继电保护装置

It is the circuit board of the relay protection device.

Relay protection devices are automated measures and equipment that can issue timely warning signals to the operating duty personnel, or directly issue tripping commands to the controlled circuit breakers to terminate the development of these events. The complete set of equipment for implementing this automation measure is generally referred to as relay protection devices