High Voltage Self-Healing Capacitor

Product Introduction

Designed for high-voltage reactive power compensation and power factor improvement, the High Voltage Self-Healing Capacitor provides a reliable solution for industrial power systems, substations, and large-scale electrical distribution networks.

This capacitor adopts self-healing technology, which allows localized dielectric breakdown points to recover their insulating properties under appropriate operating conditions. This helps maintain capacitor operation and improve long-term operational reliability. Its oil-free design eliminates the risk of oil leakage associated with traditional oil-filled capacitor structures, while dry-type resin potting provides internal insulation protection.

The High Voltage Self-Healing Capacitor is rated at 10kV AC, with available rated capacities ranging from 100 to 500 kvar. It features a rectangular enclosure made of austenitic stainless steel, offering structural protection for demanding industrial environments. Designed to operate at temperatures from -45℃ to +70℃, it supports various high-voltage reactive power compensation applications.

With an expected lifespan of up to 100,000 hours under specified operating conditions, this capacitor is suitable for power quality management systems that require stable reactive power compensation and dependable electrical performance.

Key Product Features and Advantages

1. Self-Healing Dielectric Technology

The capacitor uses self-healing technology to help restore insulation performance following localized dielectric breakdown. This feature supports continued operation and improves the reliability of the capacitor under suitable working conditions.

2. Oil-Free Safety Design

The oil-free construction eliminates oil leakage risks associated with oil-filled capacitor designs. It also avoids hazards directly associated with combustible insulating oil, supporting safer installation and operation.

3. High-Voltage 10kV AC Rating

Designed for 10kV AC electrical systems, the capacitor is suitable for high-voltage reactive power compensation in industrial facilities and power distribution networks.

4. Multiple Reactive Power Capacity Options

Available rated capacities range from 100 to 500 kvar, allowing selection according to system load characteristics and reactive power compensation requirements.

5. Austenitic Stainless Steel Enclosure

The rectangular housing is manufactured from austenitic stainless steel, providing structural strength and protection for internal capacitor components in industrial installation environments.

6. Dry-Type Resin Potting

The dry-type resin potting process provides internal insulation protection without the use of liquid insulating oil, contributing to a cleaner and more practical capacitor structure.

7. Wide Operating Temperature Range

Designed for operating temperatures from -45℃ to +70℃, making it suitable for installations exposed to varying ambient temperature conditions.

8. Secure Installation Structure

The capacitor features lifting lugs and bolted fixing points to support equipment handling, positioning, and secure mounting during installation.

9. Long Expected Service Life

With an expected lifespan of up to 100,000 hours under specified operating conditions, the capacitor is designed to support long-term operation in high-voltage power compensation systems.

Product Technical Specifications

Structural Design and Safety Features

Oil-Free Capacitor Construction

Unlike traditional oil-filled capacitor designs, this product adopts an oil-free structure. It eliminates the possibility of insulating oil leakage and reduces safety concerns associated with combustible insulating oil.

Self-Healing Performance

Self-healing dielectric technology is designed to isolate localized breakdown areas and restore insulation around the affected points. This helps reduce the impact of certain dielectric faults on overall capacitor operation.

Stainless Steel Enclosure

The rectangular austenitic stainless steel enclosure provides a durable external structure for protecting internal components. Its design is suitable for industrial electrical installations and power compensation equipment.

Dry-Type Resin Potting

The dry-type resin potting process supports internal insulation and component protection without requiring liquid dielectric oil.

Lifting and Fixing Structure

Integrated lifting lugs facilitate handling and positioning, while bolted capacitor fixing supports stable installation in designated electrical equipment assemblies.

Product Applications

The High Voltage Self-Healing Capacitor is designed for reactive power compensation and power quality improvement in various high-voltage electrical systems.

• Power Substations: Used in high-voltage shunt capacitor installations to support reactive power compensation and power factor improvement.

• Industrial Power Systems: Suitable for electrical networks in manufacturing facilities with significant inductive loads.

• Mining Enterprises: Supports reactive power management in mining and heavy industrial electrical distribution systems.

• Power Distribution Networks: Helps compensate for reactive power demand and improve the utilization efficiency of electrical infrastructure.

• Rail Transit: Suitable for relevant high-voltage power compensation applications in railway and transportation electrical systems.

• Large Industrial Equipment: Can be integrated into capacitor banks and power compensation installations according to system design requirements.

• Energy Management Projects: Supports power quality optimization and reactive power management in industrial energy systems.

Why Choose Wuxi Power Filtering Co., Ltd.?

Wuxi Power Filtering Co., Ltd. is a technology-driven enterprise specializing in the research, development, and production of power electronic capacitors, high- and low-voltage power filtering devices, and reactive power compensation equipment.

Originally developed from the Power Filtering Research Institute of Wuxi Power Capacitor Co., Ltd., the company completed its shareholding reform in 1994 and has established extensive experience in capacitor technology and power quality management.

Established Manufacturing Capabilities

• Approximately 20,000 square meters of built-up area.

• Registered capital of RMB 20 million.

• Production base located in Tongling, Anhui Province.

• Experienced technical team including senior engineers, senior economists, and industry specialists.

• Product development and manufacturing capabilities covering different capacitor types and power compensation equipment.

Technical Research and Development

The company maintains long-term technical cooperation with leading research institutions and universities, including:

• China Electric Power Research Institute.

• China Southern Power Grid Electric Power Research Institute.

• Tsinghua University.

• Huazhong University of Science and Technology.

• North China Electric Power University.

These partnerships support technological innovation, product development, and the continuous improvement of capacitor and power filtering solutions.

Industry Recognition and Project Experience

Wuxi Power Filtering Co., Ltd. has been recognized as a National High-Tech Enterprise and a Wuxi City Specialized, Sophisticated, and Innovative Enterprise. The company also operates a provincial-level Engineering Technology Research Center and a municipal-level Enterprise Technology Center.

Its products and equipment have been supplied to major enterprises and organizations, including State Grid, China Southern Power Grid, and CRRC Group, as well as industrial and mining enterprises.

Comprehensive Power Quality Product Portfolio

In addition to high-voltage self-healing capacitors, the company's main product range includes:

• Power electronic capacitors.

• Pulse capacitors.

• High-voltage power capacitors.

• Low-voltage AC capacitors.

• Power filtering devices.

• Shunt capacitor compensation installations.

• Reactive power compensation equipment.

Its products and solutions are applied in industrial manufacturing, power systems, rail transit, aerospace, and defense-related industries.

Ordering and Customization Information

To select a suitable high-voltage self-healing capacitor for your project, buyers are encouraged to provide the following technical information:

• Required rated voltage: 10kV AC.

• Required rated capacity: 100–500 kvar.

• Operating temperature and installation environment.

• Capacitor bank configuration and system connection requirements.

• Installation space and mounting requirements.

• Application type and power system parameters.

• Required quantity and project specifications.

Providing detailed electrical system information helps determine the appropriate capacitor capacity and installation configuration.

Reliable High-Voltage Reactive Power Compensation

Selecting suitable capacitor equipment is important for improving power factor, managing reactive power, and maintaining efficient operation of high-voltage electrical systems.

With established technical research capabilities, manufacturing experience, and cooperation with leading power industry institutions, Wuxi Power Filtering Co., Ltd. provides capacitor products and power quality management solutions for industrial and electrical infrastructure applications.

Contact us for technical specifications, product selection assistance, and bulk procurement inquiries about the High Voltage Self-Healing Capacitor.