3.0KV Low Frequency Furnace Melting Induction Heating Capacitor

3.0KV low-frequency furnace melting induction heating capacitor is specially designed for the 3.0-kilovolt working environment, with voltage tolerance and insulation performance, ensuring safe and stable operation under high-intensity working conditions and extending the service life of the equipment. With advanced capacitor materials and technology, it realizes efficient conversion of electrical energy to thermal energy, improves melting efficiency, reduces energy loss, and saves precious power resources for enterprises. After strict quality control and a precise manufacturing process, it ensures that the output current of the capacitor is stable and has small fluctuations, effectively avoiding the problem of uneven heating caused by unstable current and improving the melting quality. The internal structure is reasonably designed and the heat dissipation performance is good, which effectively prevents overheating, reduces maintenance frequency, and extends the service life of the capacitor and the entire induction heating system. In the power and communication industries, induction heating capacitors can be used for preheating and welding of cable terminal heads to improve welding quality and efficiency. In metallurgy, machinery, shipbuilding, and other industries, induction heating capacitors can also be used for local heating and repair of castings. Compared with traditional heating methods, the heat generated by induction heating capacitors is generated inside the workpiece, which reduces the impact of heat radiation and smoke on workers' health and improves the working environment.

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Induction Heating & Melting Capacitors

3.0kV Low Frequency Furnace Melting Induction Heating Capacitor

Designed for low-frequency furnace melting applications requiring voltage tolerance and efficient energy conversion. Supports metallurgy, machinery, shipbuilding, and power industries.

Product Overview

The RFM series delivers rated voltage of 3.0 kV for low-frequency furnace melting applications, supporting efficient energy conversion and stable operation.

The capacitor construction uses advanced dielectric materials with voltage tolerance and insulation performance, ensuring safe and stable operation under high-intensity working conditions. Advanced capacitor materials and technology enable efficient conversion of electrical energy to thermal energy, improving melting efficiency and reducing energy loss. Strict quality control and precision manufacturing processes ensure stable output current with minimal fluctuations, effectively avoiding uneven heating caused by unstable current.

Three configuration options are available to accommodate different system requirements: single cooled-live case design with sub-sections (one terminal connected to casing), single cooled-isolated case design with sub-sections (all terminals isolated), and double cooled-isolated case design without sub-sections (all terminals isolated). This flexibility allows integration with various system grounding requirements and thermal management approaches.

Core Advantages

Voltage Tolerance & Insulation

Specially designed for 3.0 kV working environment with voltage tolerance and insulation performance, ensuring safe and stable operation under high-intensity working conditions.

Efficient Energy Conversion

Advanced capacitor materials and technology enable efficient conversion of electrical energy to thermal energy, improving melting efficiency and reducing energy loss.

Stable Current Output

Strict quality control and precision manufacturing ensure stable output current with minimal fluctuations, avoiding uneven heating and improving melting quality.

Improved Working Environment

Heat generated inside the workpiece reduces the impact of heat radiation and smoke on worker health, improving the working environment compared to traditional heating methods.

Product Characteristics

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Dielectric & Insulation System

Advanced dielectric materials with voltage tolerance and insulation performance ensure safe and stable operation in 3.0 kV low-frequency furnace melting applications.

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Energy Conversion Efficiency

Efficient conversion of electrical energy to thermal energy improves melting efficiency, reduces energy loss, and saves power resources for enterprise operations.

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Current Stability

Precision manufacturing ensures stable output current with minimal fluctuations, effectively avoiding uneven heating and improving melting quality.

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Case Configurations

Live case design with one terminal connected to casing for grounded systems. Isolated case design with all terminals isolated for floating systems. Sub-section options for internal fault isolation.

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Thermal Management

Reasonable internal structure design with good heat dissipation performance effectively prevents overheating, reduces maintenance frequency, and extends service life.

Application Scenarios

Furnace Melting

Provides efficient energy conversion and stable current output for furnace melting operations, improving melting efficiency and quality.

Power & Communication

Used for preheating and welding of cable terminal heads, improving welding quality and efficiency in power and communication industries.

Metallurgy & Machinery

Supports local heating and repair of castings in metallurgy, machinery, and shipbuilding industries with precise and efficient heating.

Casting Repair

Enables localized heating for casting repair applications, providing targeted heat treatment without affecting surrounding material properties.

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. Good heat dissipation performance reduces maintenance frequency.

Mounting Orientation

Install with cooling ports oriented for optimal airflow. Single cooled configurations require horizontal mounting; double cooled configurations offer more installation flexibility. Reasonable internal structure design ensures effective heat dissipation.

Electrical Connections

Torque bus bar connections to specified values to minimize contact resistance. Loose connections cause localized heating and potential performance degradation. Follow manufacturer specifications.

Grounding

Live case configurations require casing grounding per local electrical codes. Isolated case configurations require proper insulation coordination with adjacent equipment to maintain system integrity and safety.

Environmental & Working Conditions

Indoor installation only. Ambient temperature range: -25°C to +50°C. Voltage tolerance and insulation performance ensure safe operation under high-intensity working conditions. Heat generated inside workpiece improves working environment.

Frequently Asked Questions

What is the difference between live case and isolated case configurations? +

In live case configuration, one terminal is internally connected to the capacitor casing, requiring the casing to be grounded. This design is typically used in systems where the capacitor is part of a grounded circuit. In isolated case configuration, all terminals are isolated from the casing, providing flexibility for floating or ungrounded system designs.

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 melting efficiency? +

Advanced capacitor materials and technology enable efficient conversion of electrical energy to thermal energy. Combined with stable output current and minimal fluctuations, this significantly improves melting efficiency, reduces energy loss, and saves power resources for enterprise operations.

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. Reasonable internal structure design with good heat dissipation performance prevents overheating, reduces maintenance frequency, and extends the service life of both the capacitor and the entire induction heating system.

How does this capacitor improve the working environment? +

Unlike traditional heating methods where heat is transferred through radiation and convection, induction heating capacitors generate heat directly inside the workpiece. This reduces the impact of heat radiation and smoke on worker health, significantly improving the working environment in industrial settings such as metallurgy, machinery, and shipbuilding.

TYPE	Rated UN (V)	QN(kvar)	fN (Hz)	IN(A)	CN(uF)
RFM 2 5-4000-0.4S	2500	4000	400	1600	254.6
RFM 3.3-4100-0.6S	3300	410	600	1243	100
RFM 1.5-4241-1S	1500	4241	1000	2827.3	300
RFM 1.8-4299-1.2S	1800	4299	1200	2388.3	176
RFM 2.0-4986-0.8S	2000	4986	800	2493	160
RFM 2.5-5000-0.4S	2500	5000	400	2000	318.3
RFM 4. 0-5000-0.4S	4000	5000	400	1250	124.3
RFM 1.1-5018-2.2S	1100	5018	2200	4561.8	300
RFM 3.0-5350-0.3S	3000	5350	300	1783.3	315.4
RFM 3.0-5400-0 45S	3000	5400	450	1800	212.2
RFM 3.0-5450-0.7S	3000	5450	700	1816.7	137.7
RFM 2. 5-6000-1.5S	2500	6000	1500	2400	101.9
RFM 3.0-6000-0.3S	3000	6000	300	2000	353.7
RFM 3. 6-6000-0.5S	3600	6000	500	1667	147.4
RFM 5.0-6000-0.4S	5000	6000	400	1200	95.5
RFM 3.3-6160-0 5S	3300	6160	500	1867	180.1
RFM 4.0-6333-0.6S	4000	6333	600	1583.3	105
RFM 3.0-6921-1.2S	3000	6921	1200	2307	102
RFM 3. 6-7000-0.4S	3600	7000	400	1944.5	214.9
RFM 1. 5-7200-1.2S	1500	7200	1200	4800	424.4
RFM 4. 4-7260-0.6S	4400	7260	600	1650	99.5
RFM 3.3-7350-1.5S	3300	7350	1500	2227	71 6
RFM 4.0-7500-0.4S	4000	7500	400	1875	186.5
RFM 3.0-7804-1.2S	3000	7804	1200	2601	115
RFM 3.0-8000-0.7S	3000	8000	700	2666.7	202.1
RFM 3. 6-8000-0.4S	3600	8000	400	2222	245.6

Wholesale 3.0KV Low Frequency Furnace Melting Induction Heating Capacitor