ABB has introduced the REF545KC133AAAA, a feeder terminal in the REF545 series designed for the protection, control, measurement and monitoring of power systems. The REF 545 feeder terminal can be used in combination with a variety of switching devices, including single bus, dual bus and dual systems, while supporting multiple types of grid protection functions, such as neutral ungrounded networks, arc suppression coil grounded networks and partially grounded networks. In addition, the REF 545 covers the protection and control requirements of medium-sized three-phase asynchronous motors and reactive power compensation shunt capacitor banks.

Another feature of the REF 545 feeder terminal is its integrated PLC logic programmable function, which enables the automation functions and sequential logic control functions required for the substation integrated automation system to be integrated into a single device. In terms of data communication, REF 545 supports a variety of communication standards, including SPA bus protocol, LON bus protocol, IEC 60870-5-103 protocol, etc. As well as IEC 61850 supported by SPA-ZC 400 and Profitbus DPV1 protocol supported by SPA-ZC 302, DNP 3.0 and Modbus communication protocols for upper layer devices.

REF543KM127AAAA

Key benefits of the REF545KC133AAAA feeder terminal include a large selection of protection functions, high flexibility with PLC programmable functions, 34 switching inputs and 25 outlet relays, and flexible connection options to meet all communication needs. This device has a wide range of applications, suitable for various scenarios of power systems, including substations, distribution systems, motor control, etc., to ensure the safe, stable and reliable operation of power systems.

REF545KC133AAAA is a new medium voltage network protection device launched by ABB. Its advanced technology, high integration and strong communication capability make it a strong competitor in the field of power system protection.