- Comprehensive Protection Functions: It has a variety of protection functions for two – winding power transformers, including advanced and fast differential protection with high inrush stability, which can quickly and accurately detect internal faults of transformers. It also supports over – excitation (V/Hz) protection to prevent the transformer from being damaged due to over – voltage or under – frequency.
- Voltage Regulation Function: Optionally, it can include automatic voltage regulation of power transformers with a motor – driven on – load tap changer, which is beneficial to maintaining the stability of the power grid voltage.
- Arc Protection: It may have arc protection function, which can detect arc faults in time and take corresponding protection measures to improve the safety of the system.
- Graphical Display: It is equipped with a large – screen graphical display, which can display customizable single – line diagrams, and can be accessed locally or through a web – browser – based human – machine interface (HMI), which is convenient for users to monitor and operate.
- Power Distribution Systems: It is mainly used for the protection, control, measurement, and supervision of power and step – up transformers in utility and industrial power distribution systems, including power generator – transformer blocks.
- Voltage Regulation Scenarios: It is ideal for voltage regulation occasions, which can ensure the stable operation of the power grid by adjusting the tap position of the transformer.
- IEC 61850: It supports native IEC 61850 edition 1 and 2, including redundancy HSR (High – Speed Redundancy Protocol) and PRP (Parallel Redundancy Protocol), as well as GOOSE (Generic Object – Oriented Substation Event) messaging and IEC 61850 – 9 – 2 LE, which is conducive to realizing digital communication in substations and reducing wiring.
- Modbus: It supports Modbus protocol, which can communicate with other devices such as PLCs and HMIs, and is convenient for data exchange and system integration.
- DNP3: It supports DNP3 (Distributed Network Protocol 3), which is suitable for communication between power system devices and can realize remote monitoring and control.
- IEC 60870 – 5 – 103: It also supports this protocol, which is a common communication protocol for power system protection devices and is used for the transmission of protection and control information.
- IEEE 1588 V2: It supports high – accuracy time synchronization via IEEE 1588 V2 precision time protocol, which is beneficial to ensuring the synchronization of each device in the power system.
- Functional Expansion: It has functional scalability, and users can easily customize configurations according to application – specific requirements, such as adding or adjusting protection functions, voltage regulation functions, etc.
- Configuration Expansion: The withdrawable plug – in unit design is conducive to quick installation and testing. At the same time, through the programmable push – button and ring – lug terminals for all inputs and outputs, it is convenient to re – configure and expand the system without rewiring or changing components, which is convenient for system upgrades and maintenance.
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