The technical parameters and key features of the ABB SPAU 110 C-CA Residual Overvoltage Relay can be summarized as follows in English:

Technical Specifications

1. Product Overview:
   The ABB SPAU 110 C-CA is a residual overvoltage relay designed to monitor and protect electrical systems from excessive overvoltage conditions. It is widely used in industrial and utility applications to ensure the safety and reliability of power distribution networks.

2. Key Features:

   • Overvoltage Protection: Monitors and detects residual overvoltage conditions in electrical systems.
   • Adjustable Settings: The overvoltage threshold and operating time are configurable to suit specific application requirements.
   • Flexible Reset Options: Supports both manual and automatic reset modes for enhanced operational convenience.
   • High Reliability: Designed for long-term operation in harsh industrial environments.
   • Easy Installation: Compact design and standardized mounting dimensions for quick integration into existing systems.

3. Applications:

   • Power Distribution Networks: Protection of transformers, switchgear, and distribution lines.
   • Industrial Plants: Monitoring of motors, generators, and other critical equipment.
   • Renewable Energy Systems: Overvoltage protection in solar and wind power installations.
   • Infrastructure: Water treatment plants, wastewater management, and oil & gas facilities.

4. Advantages:

   • Enhanced Safety: Prevents equipment damage and downtime caused by overvoltage events.
   • Cost-Effective: Reduces maintenance costs and extends the lifespan of electrical assets.
   • Scalability: Suitable for small-scale to large-scale industrial applications.
   • Global Support: ABB's extensive service network ensures rapid response and technical assistance.

5. Technical Details (if available from official documentation):

   • Voltage Range: Typically supports a wide range of input voltages to accommodate different system requirements.
   • Response Time: Fast response to overvoltage conditions to minimize equipment stress.
   • Operating Temperature: Designed to operate reliably in a broad temperature range, often from -20°C to +70°C.
   • Compliance: Meets international standards for electrical safety and electromagnetic compatibility (EMC).

6. Configuration and Customization:

   • The relay may offer configurable settings for overvoltage thresholds, delay times, and reset modes, allowing it to be tailored to specific system needs.
   • Compatibility with ABB's range of control and protection systems for seamless integration.

7. Certifications and Approvals:

   • Complies with relevant international standards (e.g., IEC, IEEE) for overvoltage protection devices.
   • Certified for use in hazardous areas or specific industrial environments where safety and reliability are critical.