What is a dry-type iron-core shunt reactor used for?

Table of Contents

1. Introduction to Dry-type Iron-core Shunt Reactors
2. Applications and Uses
3. Technical Specifications and Parameters
4. Benefits of Using Dry-Type Reactors
5. HOLEEP Company Solutions
6. Conclusion
7. References

Introduction to Dry-Type Iron-Core Shunt Reactors

Dry-type iron-core shunt reactors are electrical devices used to absorb reactive power in power transmission networks. Unlike their oil-immersed counterparts, dry-type reactors use air or another gas to insulate the conductive components. This makes them safer and more environmentally friendly.

Applications and Uses

Shunt reactors are primarily used for reactive power compensation, voltage regulation, and system stability in electrical grids. Some common applications include:

• Voltage Control: Prevents overvoltage on the transmission lines, thereby maintaining system voltage within desired limits.
• Reactive Power Compensation: Balances the load of reactive power, improving the power factor and efficiency of the system.
• System Stability: Enhances the stability of long transmission lines by reducing the Ferranti effect, especially in high-voltage lines over 220 kV.

Technical Specifications and Parameters

Key specifications of dry-type iron-core shunt reactors include:

• Nominal Voltage: Typically available for systems from 6.6 kV to 765 kV.
• Current Rating: Current ratings can range from a few tens of Amperes to several thousands of Amperes, depending on system requirements.
• Inductive Reactance: Essential for providing the necessary reactive power compensation.
• Power Losses: Typically, lower compared to oil-filled reactors due to better materials used.

Benefits of Using Dry-Type Reactors

Dry-type reactors offer several advantages over oil-filled options:

• Safety: No risk of oil leaks or fires, making them safer for densely populated areas.
• Environmental Impact: Free from oil spills and eco-friendly design.
• Maintenance: Reduced maintenance due to the absence of oil, lowering operational costs.
• Compact Design: Often smaller and lighter, making installation easier in limited spaces.

HOLEEP Company Solutions

HOLEEP offers a variety of solutions tailored for specific needs in dry-type iron-core shunt reactors:

• Standard and Custom Reactors: Solutions designed for a wide range of operational voltages and sizes.
• Modular Designs: Allows for scalable installations adaptable to growing system needs.
• Advanced Cooling Techniques: Provides enhanced cooling systems that improve performance and prolong component life.
• Smart Monitoring Systems: Integration with intelligent monitoring systems for real-time data and diagnostics.

Conclusion

In summary, dry-type iron-core shunt reactors play a critical role in modern power systems by enhancing voltage regulation, stability, and efficiency. Their ecological and safety benefits, combined with the advanced solutions offered by companies like HOLEEP, make them an attractive choice for the energy sector.

References

• Smith, J. Power System Stability and Control, McGraw-Hill, 2011.
• HOLEEP Corporation, Advanced Solutions for Power Systems, accessed October 2023.
• IEEE Std 1030-2015, Guide for Synchronization, Calibration, and Connection of Shunt Reactors, 2015.