Comprehensive Protection and Precise Monitoring

Beyond the standard overcurrent and undervoltage protections offered by devices of the same series, this unit incorporates advanced protection functions such as instantaneous grounding protection and thermal overload protection. It can continuously monitor a full range of electrical parameters within the bay, enabling rapid response to abnormal conditions and effectively preventing equipment damage. The local HMI supports multi-page display, allowing operators to view detailed operating information and maintain a comprehensive understanding of equipment status at all times.

Reliable Interlocking and Intelligent Control

Station-wide interlocking is implemented via GOOSE messages, ensuring fast, deterministic communication. Combined with vertical MMS client–server communication, the device seamlessly connects to local control systems and remote SCADA workstations. It adheres to the “select-before-execute” control philosophy, ensuring safe and error-free operation. Supporting a distributed control architecture, the unit can be configured for single-bay control or scaled to manage multiple bays, offering high flexibility across different substation and power system layouts.

High Adaptability and Easy Maintenance

The modular architecture allows functional expansion according to application needs and adapts easily to different switchgear configurations. A pull-out chassis design paired with screw-terminal wiring not only simplifies installation but also enables the device to be easily withdrawn for inspection or replacement. This significantly reduces maintenance complexity and minimizes downtime, lowering long-term operational costs.

Typical Application Scenarios

Substation Automation Systems:
Provides comprehensive monitoring and control for bay-level equipment such as feeders, capacitors, and transformers, enhancing overall station automation reliability.

High-Voltage Direct Current (HVDC) Transmission:
Particularly suitable for series compensation systems and HVDC infrastructures, where it ensures stable long-distance power transmission and supports the demanding requirements of special-purpose power systems.

Industrial Power and Automation:
Can be embedded within factory power distribution systems to protect, control, and monitor production-line power circuits, preventing electrical faults from interrupting manufacturing processes.