Wholesale Air-Cooled Induction Heating Capacitor

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Air-Cooled Induction Heating Capacitor

Air-cooled induction heating capacitors integrate advanced induction heating principles and efficient air-cooling heat dissipation systems, bringing users a heating experience and improved energy efficiency. Using the latest electromagnetic induction technology, the high-frequency current generates eddy currents inside the metal workpiece, directly converting electrical energy into thermal energy to achieve rapid and uniform heating effects. Compared with traditional heating methods, induction heating has higher energy conversion efficiency and shorter heating time, significantly improving production efficiency and heating quality. Equipped with a high-efficiency air cooling system, it uses powerful fans combined with precision-designed cooling ducts to quickly take away heat from the capacitor and the surrounding environment, effectively extending the service life of the capacitor and maintaining performance even under long-term high-load operation. Using high-quality electrical components and insulation materials, and using multiple safety protection measures (such as over-current protection, over-voltage protection, over-heat protection, etc.) to ensure that the equipment can still operate safely under complex and changeable working conditions, reduce failure rates, and improve usage safety. It is suitable for metal smelting, heat treatment, welding, forging, drying, and other industrial fields. It is also suitable for rapid heating needs in homes and commercial places, such as kitchen appliances, heating equipment, etc., showing its strong adaptability and flexibility.

  • Specification

    Special power capacitors up to 800 V are designed for tuning the circuits of induction furnaces and low-frequency heaters 50/60 Hz.
    Thanks to the technology used, big capacitances in the unit can be achieved at lower voltages (compared to water-cooled condensers).

  • describe

    Voltage: up to 800 V
    Capacitance: up to 4400 µF
    Power: up to 1000 kvar
    Frequency: 50/60 Hz

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Induction Heating & Melting Capacitors

Air-Cooled Induction Heating Capacitor

Engineered for induction heating systems requiring air-cooled thermal management. Supports reactive power delivery across metal smelting, heat treatment, forging, welding, and drying applications.

Product Overview

This capacitor series is designed for induction heating systems that utilize air-cooling for thermal management.

The air-cooled construction enables operation at power levels up to 1000 kvar with voltage ratings up to 800 V and capacitance configurations up to 4400 µF. The integrated air cooling system uses forced convection through precision-designed cooling ducts, extracting heat from the capacitor elements during continuous operation. This thermal management approach supports duty cycles typical of industrial heating processes where water availability may be limited.

The capacitor elements are constructed using metallized polypropylene film with a self-healing dielectric layer. The housing incorporates optimized airflow channels and is constructed from materials that facilitate heat dissipation. Terminal configurations are available in multiple formats to accommodate various bus bar and cable connection methods.

800 V Rated Voltage 50/60 Hz base
4400 µF Capacitance Range Tolerance ±5%
1000 kvar Reactive Power At rated voltage
50/60 Hz Frequency Range Low-frequency operation
Forced Air Cooling Method Fan-assisted convection
-25 to +50°C Ambient Temp Range Indoor installation

Core Advantages

01

Air-Cooled Thermal Management

Forced convection cooling system removes heat from the capacitor core without requiring water infrastructure. This reduces installation complexity and eliminates risks associated with water leakage or water quality management.

02

Self-Healing Dielectric

Metallized polypropylene film construction isolates localized breakdown events, allowing the capacitor to continue operation after minor insulation failures and extending service intervals.

03

High Capacitance Density

Design achieves capacitance values up to 4400 µF at 800 V, enabling high reactive power compensation in a compact footprint suitable for space-constrained installations.

04

Protection Circuitry

Integrated over-current, over-voltage, and over-temperature protection monitors operating conditions and initiates protective responses when parameters exceed safe thresholds.

Product Characteristics

Dielectric System

Metallized polypropylene film with self-healing properties. Dielectric thickness selected based on voltage rating to balance capacitance density and dielectric strength.

Air Cooling System

Precision-designed cooling ducts direct airflow across the capacitor element stack. Fan-assisted convection ensures heat removal during continuous operation.

Terminal Configurations

Multiple terminal options including bus bar connections, threaded studs, and flat tabs. Terminal materials selected for low contact resistance and corrosion resistance.

Protection Features

Over-current protection, over-voltage protection, and over-temperature protection circuits monitor operating conditions and respond to fault events.

Discharge Resistor

Internal bleed resistors reduce stored charge to safe levels within 60 seconds of disconnection, per industrial safety practices.

Installation & Operation Notes

01

Airflow Requirements

Ensure adequate clearance around the capacitor for air intake and exhaust. Obstructions within 200 mm of cooling vents will reduce cooling efficiency and may cause derating.

02

Ambient Temperature

Rated for indoor installation with ambient temperatures from -25°C to +50°C. Derating applies when operating in elevated ambient temperatures or at high altitudes.

03

Mounting Orientation

Install with cooling vents oriented vertically to allow natural convection to assist forced airflow. Horizontal mounting requires verification of airflow path.

04

Electrical Connections

Torque bus bar connections to specified values to minimize contact resistance. Loose connections cause localized heating and potential terminal degradation.

05

Environmental Conditions

Avoid installation in areas with high particulate concentration, corrosive gases, or excessive moisture. Filtration of intake air may be required in dusty environments.

Frequently Asked Questions

What is the typical airflow requirement for these capacitors? +
Airflow requirements depend on the power rating and ambient temperature. For standard 1000 kvar units, a minimum airflow of 150 CFM at the intake is recommended. Detailed cooling specifications are provided with each unit based on the operating parameters.
How does the capacitor perform when the fan system fails? +
The integrated temperature monitoring system will detect the temperature increase and activate protection circuits. The capacitor will reduce output or disconnect from the power supply to prevent thermal damage. A redundant fan configuration is recommended for critical applications.
Can these capacitors be used in parallel for higher power systems? +
Parallel operation is supported with proper current sharing. Each capacitor should be matched for capacitance and equivalent series resistance. The cooling air distribution must be verified to ensure all units receive adequate airflow.
What is the typical service life under continuous operation? +
Service life is influenced by operating temperature, voltage stress, and duty cycle. Under rated conditions with proper cooling, the design life exceeds 80,000 hours. Regular monitoring of capacitance and dissipation factor is recommended to track degradation.
What maintenance is required for the air cooling system? +
Regular maintenance includes cleaning or replacing air filters (if installed), inspecting fan operation, and verifying airflow path is unobstructed. A full cooling system inspection is recommended every 6 months or per the manufacturer's schedule.
Jiande Antai Power Capacitor Co., Ltd.
Jiande Antai Power Capacitor Co., Ltd.
Jiande Antai Power Capacitor Co., Ltd. is China Wholesale Air Cooled Capacitor Factory and Air-Cooled Induction Heating Capacitor Suppliers, located on the banks of the beautiful Xin'an River in Jiande City, Zhejiang Province. It was founded in 2003 and has a history of nearly 20 years. The company specializes in producing RFM series electric heating capacitors, series resonant capacitors for small and high frequencies, and DZMJ series DC filter capacitors, with a complete production and quality management system. 1S09001 management system certification and CE certification, the company has a strong technical force, advanced production technology, complete testing methods, and independent research and development capabilities. The company's products are novel in design, exquisite in manufacturing, stable in quality, and deeply trusted by domestic and foreign users. With more than 10 years of export experience, the products are exported to the United States, Italy, Germany, Ukraine, Turkey, South Korea, India and other countries. Series resonant capacitors, large-capacity high-voltage capacitors, and filter capacitors have an advantage in the domestic and foreign markets. We offer Air-Cooled Induction Heating Capacitor Suppliers for sale.
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