


The GWZC-9000 20kV & 33kV Substation Automation System (SAS) integrates intelligent protection relays, PLCs, and RTUs to automate critical functions like circuit breaker control, fault detection, load management, and power quality monitoring. Compliant with IEC 61850, it enables seamless grid communication while SCADA and HMI provide centralized monitoring and control. The system features advanced protection schemes (overcurrent, earth fault, differential protection), predictive maintenance alerts, and robust cybersecurity to ensure secure data transmission. Ideal for industrial plants, utilities, and commercial facilities, the SAS enhances operational efficiency, minimizes downtime, and supports smart grid integration through real-time data acquisition, remote operation, and rapid fault isolation.
Substation Automation System (SAS) Overview
The GWZC-9000 20kV & 33kV Substation Automation System (SAS) is a smart control solution that enhances medium-voltage power distribution by automating monitoring, protection, and switching operations. It is widely used in industrial, utility, and renewable energy applications to improve grid reliability, safety, and efficiency.
Key Functions of SAS
Benefits & Role of SAS
Major Components of SAS
This integrated automation system ensures efficient, secure, and resilient power distribution for modern electrical networks.