REM615电动机保护测控装置的主要功能包括保护、测量、控制和监视。

其中，保护功能主要包括过热保护、电动机启动监视、转子堵转保护以及电动机频繁启动保护等。此外，该装置还包括无方向接地保护、负序不平衡电流保护，以及后备过电流保护功能。它还为电动机失速保护、失载等情况提供了保护措施。

在测量方面，REM615可以测量电压、电流等模拟量，并支持功率和电能测量。

控制功能上，REM615可以实现电动机的本地或远程启动/停止控制。

除了以上主要功能，REM615还具有其他辅助功能，如事件记录，可帮助用户在装置或系统发生故障时找出问题所在。同时，该装置还支持多种通信协议，可以方便地与其它系统进行数据交换和远程监控。

The main functions of the REM615 motor protection and measurement device include protection, measurement, control, and monitoring.

Among them, the protection functions mainly include overheat protection, motor start monitoring, rotor blockage protection, and frequent motor start protection. In addition, the device also includes directional grounding protection, negative sequence unbalanced current protection, and backup overcurrent protection functions. It also provides protection measures for situations such as motor stall protection and loss of load.

In terms of measurement, REM615 can measure analog quantities such as voltage and current, and supports power and energy measurement.

In terms of control function, REM615 can achieve local or remote start/stop control of the motor.

In addition to the main functions mentioned above, REM615 also has other auxiliary functions, such as event recording, which can help users identify the problem when a device or system malfunctions. At the same time, the device also supports multiple communication protocols, which can facilitate data exchange and remote monitoring with other systems.