Induction Heating & Melting Capacitors

RAM 3300V 6921KVar 1200Hz Medium Frequency Induction Heating Capacitor

Designed for efficient and precise industrial medium frequency heating applications. Supports metal smelting, forging, heat treatment, and welding across diverse industrial sectors.

Product Overview

The RAM series delivers rated voltage of 3300 V with reactive power capacity of 6921 kvar at 1200 Hz, supporting medium frequency induction heating applications requiring precision and efficiency.

The capacitor construction uses metallized polypropylene film dielectric with self-healing properties. The design incorporates high energy density and low loss characteristics, contributing to improved production efficiency while reducing maintenance costs. The capacitor operates stably at 3300 V, demonstrating voltage withstand performance and long-term reliability in industrial environments.

Two configuration options are available: single cooled-isolated case design with sub-sections (all terminals isolated) and double cooled-isolated case design without sub-sections (all terminals isolated). Both configurations provide complete terminal isolation for flexible integration with various system grounding requirements.

Core Advantages

High Voltage Withstand Performance

Rated at 3300 V with demonstrated voltage withstand capability. Ensures stable operation and long-term reliability in industrial medium frequency heating applications, supporting demanding working conditions.

Large Reactive Power Capacity

Delivers 6921 kvar reactive power compensation, ensuring sufficient power support during high-power heating operations. Effectively improves system power factor and reduces energy loss.

Medium Frequency Optimization

Specifically designed for 1200 Hz medium frequency operation. Accurately matches the needs of medium-frequency induction heating equipment, achieving fast and uniform heating results.

High Energy Density & Low Loss

Design balances high energy density with low loss characteristics. Improves production efficiency while reducing maintenance costs, supporting greener and more efficient industrial heating technology development.

Product Characteristics

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Dielectric System

Metallized polypropylene film with self-healing properties. Advanced materials and manufacturing processes ensure voltage withstand performance and long-term reliability at 3300 V operation.

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Medium Frequency Performance

Optimized for 1200 Hz operation with low equivalent series resistance. Enables precise energy delivery, fast heating response, and uniform heating distribution across the workpiece.

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Case Configurations

Single cooled-isolated case design with sub-sections for fault isolation. Double cooled-isolated case design without sub-sections for enhanced thermal management. All terminals isolated for system integration flexibility.

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Terminal Design

Heavy-duty bus bar terminals with low contact resistance. Terminal materials selected for thermal conductivity and corrosion resistance. Multiple configurations available for various connection methods.

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Discharge & Protection

Internal discharge resistors reduce stored charge to safe levels within 60 seconds. Design considerations include both high energy density and low loss characteristics for optimal system performance.

Application Scenarios

Metal Smelting

Induction melting of ferrous and non-ferrous metals. High voltage and capacity design provides reliable reactive power compensation for demanding smelting operations.

Forging Applications

Induction forging of metal components requiring rapid and uniform heating. Medium frequency optimization enables precise temperature control and improved forging quality.

Heat Treatment

Surface hardening and heat treatment of industrial components. Supports diverse heat treatment processes with consistent heating results and improved energy efficiency.

Welding Operations

Medium frequency induction welding applications. Accurate frequency matching ensures fast and uniform heating for reliable weld quality.

Installation & Operation Notes

Cooling Requirements

Single cooled configurations require adequate airflow for heat dissipation. Double cooled configurations provide enhanced thermal management for higher power applications. Ensure proper clearance around cooling vents.

Mounting Orientation

Install with cooling ports oriented for optimal airflow. Single cooled configurations require horizontal mounting; double cooled configurations offer more installation flexibility.

Electrical Connections

Torque bus bar connections to specified values to minimize contact resistance. Loose connections cause localized heating and potential performance degradation. Use appropriate torque tools and follow manufacturer specifications.

Environmental Conditions

Indoor installation only. Ambient temperature range: -25°C to +50°C. Avoid corrosive gases, conductive dust, and excessive vibration. Proper insulation coordination required per local electrical codes.

Maintenance

Regular monitoring of capacitance and dissipation factor recommended to track degradation. Inspect cooling vents and terminal connections periodically to ensure continued reliable operation and reduced maintenance costs.

Frequently Asked Questions

What makes this capacitor suitable for medium frequency induction heating? +

This capacitor is specifically optimized for 1200 Hz medium frequency operation. The design accounts for the frequency-dependent characteristics of induction heating systems, enabling accurate matching with medium-frequency heating equipment for fast and uniform heating results. The low loss characteristics at this frequency band ensure efficient energy delivery and reduced system losses.

What is the difference between single cooled and double cooled configurations? +

Single cooled configuration uses one cooling system and includes sub-sections for internal fault isolation. Double cooled configuration provides enhanced thermal management with two independent cooling systems and no sub-sections, suitable for higher power applications requiring maximum heat dissipation capacity.

How does the capacitor improve system power factor? +

The 6921 kvar reactive power capacity provides sufficient reactive power compensation during high-power heating operations. By supplying reactive power locally, the capacitor reduces the reactive current drawn from the supply, improving the overall power factor of the system and reducing energy losses in the distribution network.

What is the expected 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. The high energy density and low loss design contribute to reduced thermal stress and extended service intervals, with regular monitoring of capacitance and dissipation factor recommended to track degradation.

What industries benefit most from this capacitor? +

This capacitor is widely used in metal smelting, forging, heat treatment, and welding applications across diverse industrial sectors. Its design supports the development of industrial heating technology toward more efficient and sustainable operations, providing reliable performance for demanding manufacturing environments.