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High Efficiency Induction Furnace Capacitors from China Suppliers - Custom Factory Options for Optimal Performance
Brief Instruction
We custom the induction furnace capacitors specially for improving the power factor or loop characteristics of induction heating, melting, stirring or casting and related induction heating /melting applications in controlled or adjustable AC voltage systems with normal voltages or greater than 4kV, medium frequency, high frequency induction heating power system ranged 0.5khz~300Khz.
These induction furnace capacitor play a crucial role in enhancing the performance and efficiency of induction heating/melting applications, especially in environments requiring controlled AC voltage. The robust design and high frequency, high current, high power, specifications make them a reliable choice for medium frequency induction heating furnace focused on improving their operational effectiveness.
Types of Capacitors used in induction heating furnace and Their Benefits:
Water-Cooled Capacitors
Water-cooled capacitors are essential for high-frequency induction heating systems which could effectively dissipate the heat generated by the capacitor itself, preventing overheating and ensuring reliable operation.
High-Voltage Film Capacitors
Some induction furnaces, particularly those used for melting, operate at high voltages. High-voltage film capacitors are specifically designed to withstand high-voltages and prevent breakdown, and to the power supply system for DC filter circuit. The high-voltage film capacitors are popular used in induction heating systems due to their ability to handle high currents and frequencies.
Product Features
- High Voltage Rating: Capable of handling nominal voltages up to 5kVAC, making them suitable for high-power applications.
- Frequency Ranges: Designed to operate efficiently at high frequencies like 500Hz, 1000Hz, 1500KHz, 2000Hz, 3000Hz, 4000hz normally, max 300khz, ensuring compatibility with various induction heating processes.
- Durability: Built to withstand harsh indoor high temperature environments, ensuring longevity and reliability.
- Built-in cooling tubes for capacitor cooling down
Capacitor Construction
Dielectric Material
Typically constructed with high-quality Film dielectric and foil as internal electrode that enhance performance and reduce losses.
Encapsulation
Filled in insulation oil, no PCB. The whole encapsulated process must be handled in high-level workshop, for example, the capacitor core winding process must be completed at dust-free workshops, and the oil filling must be completed at vacuum environment. Often encapsulated to provide protection against environmental factors, including moisture and dust.
Terminals/Tabs
Equipped with robust copper terminals and insulation bush for secure connections and overcurrent capacity, facilitating ease of installation and maintenance.
Built-in Water-pipes
built-in cooling water pipes
Operation Condition
- Indoor use
- Installation Altitude compliable: not exceed 1000m
- Indoor temperature: -40~ 50℃
- Maximum voltage applicable: Rated Voltage × 1.05
- Maximum Current applicable: Rated current× 1.15
- Cooling water Flow rate: Minimum Flow rate (L/min)
| Minimum Flow Rate | Output Power Range |
|---|---|
| 3 L/min | output less than 500 Kvar |
| 6 L/min | output 500~800 Kvar |
| 8 L/min | output 800-1500 Kvar |
| 10 L/min | output more than 2000 Kvar |
Water Quality & pressure requirements:
Inlet pressure of cooling water shall not exceed 0.4Mpa, inlet water temperature shall not exceed 30℃, flow rate of cooling water shall not be less than 6L/min, cooling water shall be soft water without impurities, PH value at 6 ~ 9. Inlet pressure of cooling water shall not exceed 0.4Mpa.
Inlet pressure of cooling water shall not exceed 0.4Mpa, inlet water temperature shall not exceed 30℃, flow rate of cooling water shall not be less than 6L/min, cooling water shall be soft water without impurities, PH value at 6 ~ 9. Inlet pressure of cooling water shall not exceed 0.4Mpa.
Reference Induction Furnace Capacitor Specification
Model: RFM 0.75-1500-0.5S
Technical Parameter (RFM 0.75-1500-0.5S) - Electrical
| No | Description | Unit | Data |
|---|---|---|---|
| 1 | Rated capacity | Kvar | 1500 Kvar |
| 2 | Rated voltage | VAC | 750 VAC |
| 3 | Frequency | hz | 500 Hz |
| 4 | Rated Current | Amps | 2000 A |
| 5 | Capacitance | microfarad | 849 uf |
Technical Parameter (RFM 0.75-1500-0.5S) - Mechanical & Material
| No | Description | Unit | Data |
|---|---|---|---|
| 1 | Terminal/Tab | mm | M12 |
| 2 | water tubes | Nos | 1 |
| 3 | output water temperature | C | Max 45C |
| 4 | Flow rate of cooling water | L | 6 L/Min |
| 5 | Discharge resistor / Pressure switch | None | |
| 6 | Dielectric Medium | All-film polypropylene / aluminum foil | |
| 6 | Filling material | Insulation oil(PEPE), No PCB | |
| 7 | Case Material | Aluminium alloy | |
| 8 | Dimension | mm | 440*210*450 mm (±3mm) |
| 9 | Max tightening torque | N m | 18 |
Frequently Asked Questions
What is the primary application of these induction furnace capacitors?
They are custom-designed to improve the power factor or loop characteristics of induction heating, melting, stirring, or casting applications in controlled or adjustable AC voltage systems. They support medium to high-frequency systems ranging from 0.5kHz to 300kHz.
What are the key benefits of using water-cooled capacitors?
Water-cooled capacitors are essential for high-frequency induction heating systems because they effectively dissipate the heat generated by the capacitor during operation. This prevents overheating and ensures reliable, continuous performance.
What environmental conditions are required for capacitor operation?
These capacitors are designed for indoor use at altitudes not exceeding 1000m. The operating indoor temperature range should remain between -40°C and 50°C.
What are the cooling water specifications for these capacitors?
The cooling water must be soft water without impurities with a PH value of 6 to 9. The inlet water temperature must not exceed 30℃, and the inlet pressure must not exceed 0.4Mpa. The flow rate should not be less than 6L/min (or as detailed by the Kvar output range).
Are these capacitors environmentally safe and PCB-free?
Yes, the capacitors are filled with insulation oil (PEPE) containing no PCBs. The encapsulation process is handled in high-level dust-free workshops and the oil filling is performed in a vacuum environment.