Description
The ABB RET650 is a versatile transformer protection and control relay that offers comprehensive protection, monitoring, and control functionalities in a single, compact device.
Product Description
The device is designed to provide safe and reliable protection for power transformers, including step-up transformers, generator step-up transformers, and station transformers. It can also be used for protection of reactors, busbars, and capacitor banks. The ABB RET650 offers a wide range of protection functions, including overcurrent, differential, thermal, and voltage protection. It can also perform comprehensive monitoring of transformer and system parameters such as winding temperature, oil temperature, and gas accumulation. The device features a user-friendly interface that allows for easy setup, configuration, and monitoring of the protection and control functions. It also supports communication protocols such as IEC 61850, Modbus, and DNP3, enabling seamless integration with SCADA and other control systems. 
Product Parameters
- Nominal voltage: 110–500 kV
- Nominal frequency: 50 or 60 Hz
- Number of current inputs: 3 or 6
- Number of voltage inputs: 3 or 6
- Number of binary inputs: 8
- Number of binary outputs: 8
- Number of analog inputs: 4
- Number of analog outputs: 4
- Operating temperature range: -40°C to +70°C
- Storage temperature range: -40°C to +80°C
Specifications
- Protection functions: overcurrent, differential, thermal, voltage, frequency, and more
- Monitoring functions: winding temperature, oil temperature, gas accumulation, and more
- Communication protocols: IEC 61850, Modbus, DNP3, and more
- User interface: LCD display, keypad, and LED indicators
- Dimensions: 210 x 140 x 127 mm
- Weight: 2.1 kg
The ABB RET650 is a reliable and flexible solution for transformer protection and control that meets the highest industry standards. 
