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ABB RET650 Transformer Protection

Introducing the ABB RET650, a cutting-edge intelligent electronic device (IED) designed to provide reliable protection and control for two- and three-winding power transformers. This advanced device is engineered with future-proof design principles, ensuring flexibility for both new installations and retrofit projects. With its unmatched sensitivity and rapid fault detection capabilities, the RET650 stands out as a crucial component for the safety and efficiency of power transformer systems.

Key Features and Benefits

The ABB RET650 is equipped with a range of features that make it an essential tool for transformer protection and control. Its future-proof design allows for flexible application in various installations, ensuring long-term reliability. The device boasts unmatched sensitivity and fast fault detection, reducing downtime and enhancing system performance. Key features include reduced parameter settings with pre-configured defaults, and an enhanced human-machine interface (HMI) with dynamic LED indicators and configurable shortcuts. These features contribute to easier operation and maintenance, further streamlining the overall system management.

Technical Specifications and Applications

With its implementation of the IEC 61850 standard, the ABB RET650 ensures interoperability with other systems, making it a versatile choice for various applications. The device offers up to 3 user pages, each featuring 15 dynamic three-color LEDs, providing clear and comprehensive status updates. It includes a negative sequence internal/external fault discriminator and a low impedance restricted earth-fault function for all earthed windings, enhancing system security. The directional zero-sequence current criterion and overcurrent functions provide backup protection, while the thermal overload function prevents damage from overheating. The breaker failure protection enables high-speed tripping, ensuring rapid response to potential faults. The RET650 is designed for low primary CT requirements and comes factory-tested with full functionality and default parameters, simplifying the commissioning process.