The ABB REC650 1MRK008514-AA is a bay control unit for substations, part of the Relion protection and control product family. The following is a detailed introduction:

Features:

Powerful Control Functions: It controls primary devices such as circuit breakers, disconnectors, and earthing switches, supporting both local and remote control. The "select before action" principle ensures safe operation and prevents human error. By selecting the control screen as the default, control commands can be quickly executed and important measurements and position indicators can be viewed.

Protection Functions: A variety of protection functions, including high-set instantaneous phase and ground overcurrent, directional or non-directional delayed phase and ground overcurrent, thermal overload, and two-step undervoltage and overvoltage functions, provide flexible protection solutions for different station types and busbar arrangements. The auto-reclosing function includes a priority circuit for single-breaker arrangements and can be combined with the synchrocheck function to achieve high-speed or delayed reclosing.

Monitoring and Alarms: Extensive monitoring functions provide real-time monitoring of equipment operating status. The device features three alarm indication pages, each containing 15 dynamic, three-color indicators. These indicators display the status of any binary input signal on the human-machine interface (HMI), facilitating quick device status and fault detection.

Strong communication capabilities: Supporting multiple communication protocols, the device can exchange data with SCADA systems or other station equipment via a communication bus, enabling remote monitoring and control.

Easy to configure and use: Basic parameters are factory-set before delivery, allowing users to quickly start operations by simply configuring specific parameters based on their specific application. A graphical configuration tool makes testing and commissioning simple and fast, with pre-configured configuration packages available for various application scenarios, such as single busbar single circuit breaker and dual busbar single circuit breaker.

Application Areas:

Substations: Primarily used in medium-voltage substations, the device is suitable for switchgear arrangements, such as single busbar single circuit breaker and dual busbar single circuit breaker. It provides effective control, protection, and monitoring of various bays within the substation, ensuring reliable operation. Industrial: It can be used in power distribution systems in industrial plants to control and protect the power supply circuits of industrial equipment, ensuring a stable power supply during industrial production.

Renewable energy power plants, such as wind and solar farms, can be used to control and protect related equipment such as booster stations, ensuring stable grid connection and transmission of renewable energy.

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