How is the application and development of AIS voltage transformers in 66kV outdoor substations?

07/15/2025

Hey everyone! I’m Echo, and today we’re diving into the application and development of Air Insulated Switchgear (AIS) voltage transformers in 66kV outdoor substations. These devices play a crucial role in power systems, not just for measurement but also for protection and control. As technology advances, they continue to evolve to meet higher performance demands and stricter environmental standards. Let’s take a closer look!

Applications

  • Voltage Measurement

    • One of the primary tasks of AIS voltage transformers is converting high voltages into low-voltage signals that meters can easily read and monitor.
  • Power System Protection

    • They work alongside relay protection devices to detect and respond to anomalies like overvoltage and undervoltage, ensuring the safe operation of the grid.
  • Synchronization Detection

    • During grid synchronization operations, they provide necessary voltage signals to ensure synchronization between generators and the grid—a critical step.
  • Energy Metering

    • Paired with current transformers, they enable precise energy metering, which is essential for billing by power companies and managing user consumption.
  • Control and Signal Transmission

    • In automation and remote control systems, voltage transformers convert voltage signals into suitable low-voltage signals for easier monitoring and control.

Development Trends

  • Intelligent and Digital Features

    • Modern voltage transformers are getting smarter, integrating real-time data acquisition, fault prediction, and self-diagnosis functions. This significantly enhances grid reliability and efficiency.
  • Precision and Compact Design

    • Improving measurement accuracy while reducing size makes these devices more suitable for limited space installations and easier to transport and maintain.
  • Eco-friendly Materials and Technologies

    • Using more environmentally friendly materials reduces environmental impact and enhances the sustainability of the equipment.
  • Standardization and Globalization

    • Equipment design and production are increasingly aligned with international standards, promoting global trade and improving product compatibility and quality.
  • Enhanced Reliability

    • To handle harsh working environments (like high temperatures, humidity, and salt fog corrosion), more durable materials and protective measures are used to ensure long-term stability.
  • Increased Security

    • With the rise of cybersecurity threats, especially in smart grids, the security of voltage transformers has become even more important. This includes both physical protection and encrypted communication methods.
  • Customized Services

    • Offering customized solutions based on user needs better adapts to different application scenarios and specific requirements.

Conclusion

In summary, 66kV outdoor substation AIS voltage transformers aren’t just about measuring voltage; they play significant roles across various aspects of power systems. Future developments focus on enhancing device intelligence, optimizing designs, and improving stability and security under various conditions. As technology progresses, these devices will continue to evolve to support increasingly complex power network demands.

I hope this article helps you gain a clearer understanding of 66kV outdoor substation AIS voltage transformers. If you have any questions or want to share your experiences, feel free to leave a comment or send me a message. Let’s learn together and improve collectively!

— Echo

As an expert in the application and trends of electrical equipment, I have a profound mastery of knowledge in circuits, power electronics, etc. I possess a comprehensive set of abilities including equipment design, fault diagnosis, and project management. I can precisely grasp the industry's pulse and lead the development of the electrical field.

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