0102030405
High-Power Induction Heating Resonant Capacitor - Reliable China Suppliers & Factory for Efficient Melting Solutions
Brief description
Series Resonant capacitor used in high-power Medium Frequency Induction Furnace for Silicon Melting or steel melting.
For an efficient solid state power sources for induction furnace, usually have the induction heating load driven at its natural resonant frequency.
The furnace coil and a capacitor form a resonant tank circuit. The metal to be heated in the coil which resulting in shift in the frequency. The resonant tank circuit is returned via frequency control circuit to achieve resonance and to enable maximum power transfer to the load at all time.
Water cooled capacitors features
Water cooled film capacitors are widely used in induction heating systems because they can handle high operating currents. Heat is generated in the components of system mainly through dielectric losses. Heat is also generated at the points of connection between the leads and the dielectric material. This heat is usually referred to as connection losses. Due to the high levels of currents that these components are exposed to, considerable amount of heat is generated. A appropriate internal cooling design is necessary for induction heating used capacitor which is able to enhance its performance as well as its reliability.
1. Terminal
brass terminals brazing with copper tube & insulating bushing;
2. Protection
pressure switch to control the internal pressure;
3. Dielectric
all-film type with high quality impregnating oil;
4. Case
textured Mg-Al alloy plate (No painting).
Quality gurantee for water cooled induction heating capacitors
- Fully-automatic winding machine will test each winding core quality before it goes to next process;
- Test of intermediates will happens at welding and assembly step;
- Vacuum impregantation;
- Leakage test;
- Capacitance measurement;
- Loss factor test;
- Dielectric test between terminals;
- Dielectric test between terminals and casing.
How power capacitors work in induction heating system?
In the inductive heating system, the high-power resonant converters require capacitors with high-power density and high-efficientcy. The produced heat energy depends on switching frequency selection, Like 1Khz, 2Khz, or 10Khz etc. The induction heating system aim to convert the input AC power to a specific frequency.
During the induction heating process, the harmonic current and power loss are main problems. For comprehensive efficiency improvement, DC filtering capacitors and resonant capacitors are usually applied for the induction heating system. The typical example is IGBT based LC series resonant circuit system. DC Filter capacitors also work as an energy storage component as well as filter part in DC circuit of Induction Heating System.
The following is the schematic diagram of induction furnace
Flair capacitor prodution process
AC water cooled capacitor
| Model | Specification | Cooling method | Voltage | capacity | Frequency | capacitance | current | Terminal Nos | Diemension(mm) | Capacitor Shell | insulation covering | Weight | |||
| kv | kvar | kHz | uf | A | Length | Width | Height | Feature | Material | kg/pc | |||||
| RFM | 0.375-250-2.5 | water cooling | 0.375 | 250 | 2.5 | 113.1768484 | 666.6666667 | 4 | 336 | 142 | 175 | non-insulation | Aluminium sheet | white porcelain | 13.1 |
| RFM | 0.375-500-1(7) | water cooling | 0.375 | 500 | 1 | 565.8842421 | 1333.333333 | 6 | 400 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 34.7 |
| RFM | 0.375-500-2.5 | water cooling | 0.375 | 500 | 2.5 | 226.3536968 | 1333.333333 | 6 | 336 | 142 | 325 | non-insulation | Aluminium sheet | white porcelain | 23.6 |
| RFM | 0.375-750-1(9) | water cooling | 0.375 | 750 | 1 | 848.8263632 | 2000 | 10 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 57.7 |
| RFM | 0.375-750-2.5(9) | water cooling | 0.375 | 750 | 2.5 | 339.5305453 | 2000 | 8 | 336 | 142 | 400 | non-insulation | Aluminium sheet | white porcelain | 29.2 |
| RFM | 0.375-1000-1(4) | water cooling | 0.375 | 1000 | 1 | 1131.768484 | 2666.666667 | 10 | 440 | 207 | 470 | non-insulation | Aluminium sheet | white porcelain | 63.9 |
| RFM | 0.375-1000-1.5 | water cooling | 0.375 | 1000 | 1.5 | 754.5123228 | 2666.666667 | 10 | 440 | 166 | 430 | non-insulation | Aluminium sheet | white porcelain | 48.2 |
| RFM | 0.375-1000-2(9) | water cooling | 0.375 | 1000 | 2 | 565.8842421 | 2666.666667 | 10 | 440 | 166 | 400 | non-insulation | Aluminium sheet | white porcelain | 44.0 |
| RFM | 0.375-1000-2.5(9) | water cooling | 0.375 | 1000 | 2.5 | 452.7073937 | 2666.666667 | 10 | 440 | 166 | 325 | non-insulation | Aluminium sheet | white porcelain | 36.5 |
| RFM | 0.375-1000-4(9) | water cooling | 0.375 | 1000 | 4 | 282.9421211 | 2666.666667 | 10 | 440 | 166 | 260 | non-insulation | Aluminium sheet | white porcelain | 29.7 |
| RFM | 0.65-560-20 | water cooling | 0.65 | 560 | 20 | 10.54754652 | 861.5384615 | 4 | 303 | 120 | 175 | non-insulation | Aluminium sheet | white porcelain | 11.3 |
| RFM | 0.65-560-50 | water cooling | 0.65 | 560 | 50 | 4.21901861 | 861.5384615 | 6 | 303 | 120 | 175 | non-insulation | Aluminium sheet | white porcelain | 11.3 |
| RFM | 0.75-500-2.5 | water cooling | 0.75 | 500 | 2.5 | 56.58842421 | 666.6666667 | 4 | 303 | 120 | 210 | non-insulation | Aluminium sheet | white porcelain | 12.3 |
| RFM | 0.75-500-15 | water cooling | 0.75 | 500 | 15 | 9.431404035 | 666.6666667 | 4 | 303 | 126 | 210 | Insulation | Aluminium sheet | white porcelain | 13.0 |
| RFM | 0.75-560-4 | water cooling | 0.75 | 560 | 4 | 39.61189695 | 746.6666667 | 4 | 303 | 120 | 240 | non-insulation | Aluminium sheet | white porcelain | 13.6 |
| RFM | 0.75-640-8 | water cooling | 0.75 | 640 | 8 | 22.63536968 | 853.3333333 | 4 | 303 | 120 | 175 | non-insulation | Aluminium sheet | white porcelain | 11.0 |
| RFM | 0.75-720-1 | water cooling | 0.75 | 720 | 1 | 203.7183272 | 960 | 4 | 336 | 142 | 300 | non-insulation | Aluminium sheet | white porcelain | 21.2 |
| RFM | 0.75-900-15(2) | water cooling | 0.75 | 900 | 15 | 16.97652726 | 1200 | 6 | 336 | 166 | 240 | Insulation | Aluminium sheet | white porcelain | 20.8 |
| RFM | 0.75-900-15(3) | water cooling | 0.75 | 900 | 15 | 16.97652726 | 1200 | 6 | 336 | 142 | 220 | Insulation | Aluminium sheet | white porcelain | 17.4 |
| RFM | 0.75-1000-0.5 | water cooling | 0.75 | 1000 | 0.5 | 565.8842421 | 1333.333333 | 6 | 440 | 166 | 400 | non-insulation | Aluminium sheet | white porcelain | 42.4 |
| RFM | 0.75-1000-1 | water cooling | 0.75 | 1000 | 1 | 282.9421211 | 1333.333333 | 6 | 336 | 142 | 400 | non-insulation | Aluminium sheet | white porcelain | 28.0 |
| RFM | 0.75-1000-1(3) | water cooling | 0.75 | 1000 | 1 | 282.9421211 | 1333.333333 | 6 | 336 | 166 | 325 | non-insulation | Aluminium sheet | white porcelain | 27.0 |
| RFM | 0.75-1000-1(5) | water cooling | 0.75 | 1000 | 1 | 282.9421211 | 1333.333333 | 6 | 336 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 28.3 |
| RFM | 0.75-1000-1.5(2) | water cooling | 0.75 | 1000 | 1.5 | 188.6280807 | 1333.333333 | 6 | 336 | 142 | 285 | non-insulation | Aluminium sheet | white porcelain | 20.7 |
| RFM | 0.75-1000-2(2) | water cooling | 0.75 | 1000 | 2 | 141.4710605 | 1333.333333 | 6 | 336 | 142 | 285 | non-insulation | Aluminium sheet | white porcelain | 20.3 |
| RFM | 0.75-1000-2.5 | water cooling | 0.75 | 1000 | 2.5 | 113.1768484 | 1333.333333 | 6 | 336 | 142 | 240 | non-insulation | Aluminium sheet | white porcelain | 18.1 |
| RFM | 0.75-1000-3(2) | water cooling | 0.75 | 1000 | 3 | 94.31404035 | 1333.333333 | 6 | 336 | 142 | 240 | non-insulation | Aluminium sheet | white porcelain | 17.6 |
| RFM | 0.75-1000-4 | water cooling | 0.75 | 1000 | 4 | 70.73553026 | 1333.333333 | 6 | 336 | 142 | 240 | non-insulation | Aluminium sheet | white porcelain | 18.8 |
| RFM | 0.75-1000-6 | water cooling | 0.75 | 1000 | 6 | 47.15702018 | 1333.333333 | 6 | 336 | 142 | 240 | non-insulation | Aluminium sheet | white porcelain | 18.3 |
| RFM | 0.75-1000-6(2) | water cooling | 0.75 | 1000 | 6 | 47.15702018 | 1333.333333 | 6 | 336 | 142 | 240 | Insulation | Aluminium sheet | white porcelain | 19.0 |
| RFM | 0.75-1000-8 | water cooling | 0.75 | 1000 | 8 | 35.36776513 | 1333.333333 | 6 | 336 | 142 | 220 | Insulation | Aluminium sheet | white porcelain | 17.5 |
| RFM | 0.75-1000-8(2) | water cooling | 0.75 | 1000 | 8 | 35.36776513 | 1333.333333 | 6 | 336 | 142 | 210 | non-insulation | Aluminium sheet | white porcelain | 16.3 |
| RFM | 0.75-1000-10 | water cooling | 0.75 | 1000 | 10 | 28.29421211 | 1333.333333 | 6 | 336 | 142 | 210 | non-insulation | Aluminium sheet | white porcelain | 16.5 |
| RFM | 0.75-1000-11(2) | water cooling | 0.75 | 1000 | 11 | 25.722011 | 1333.333333 | 6 | 336 | 142 | 220 | Insulation | Aluminium sheet | white porcelain | 18.8 |
| RFM | 0.75-1500-1(9) | water cooling | 0.75 | 1500 | 1 | 424.4131816 | 2000 | 8 | 440 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 37.5 |
| RFM | 0.75-1500-1.5(9) | water cooling | 0.75 | 1500 | 1.5 | 282.9421211 | 2000 | 8 | 336 | 166 | 365 | non-insulation | Aluminium sheet | white porcelain | 30.3 |
| RFM | 0.75-1500-2 | water cooling | 0.75 | 1500 | 2 | 212.2065908 | 2000 | 8 | 336 | 166 | 300 | non-insulation | Aluminium sheet | white porcelain | 25.5 |
| RFM | 0.75-1500-2.5 | water cooling | 0.75 | 1500 | 2.5 | 169.7652726 | 2000 | 8 | 336 | 142 | 340 | non-insulation | Aluminium sheet | white porcelain | 24.8 |
| RFM | 0.75-1500-3(2) | water cooling | 0.75 | 1500 | 3 | 141.4710605 | 2000 | 8 | 336 | 142 | 285 | non-insulation | Aluminium sheet | white porcelain | 21.5 |
| RFM | 0.75-1500-4(3) | water cooling | 0.75 | 1500 | 4 | 106.1032954 | 2000 | 8 | 336 | 142 | 260 | non-insulation | Aluminium sheet | white porcelain | 22.0 |
| RFM | 0.75-1500-6(3) | water cooling | 0.75 | 1500 | 6 | 70.73553026 | 2000 | 8 | 336 | 142 | 240 | non-insulation | Aluminium sheet | white porcelain | 20.6 |
| RFM | 0.75-2000-0.5 | water cooling | 0.75 | 2000 | 0.5 | 1131.768484 | 2666.666667 | 12 | 440 | 210 | 560 | non-insulation | Aluminium sheet | white porcelain | 74.3 |
| RFM | 0.75-2000-1(2) | water cooling | 0.75 | 2000 | 1 | 565.8842421 | 2666.666667 | 10 | 440 | 207 | 410 | non-insulation | Aluminium sheet | white porcelain | 53.3 |
| RFM | 0.75-2000-1(3) | water cooling | 0.75 | 2000 | 1 | 565.8842421 | 2666.666667 | 10 | 390 | 205 | 415 | non-insulation | Aluminium sheet | white porcelain | 47.9 |
| RFM | 0.75-2000-1(9) | water cooling | 0.75 | 2000 | 1 | 565.8842421 | 2666.666667 | 10 | 440 | 166 | 465 | non-insulation | Aluminium sheet | white porcelain | 49.8 |
| RFM | 0.75-2000-1.5(9) | water cooling | 0.75 | 2000 | 1.5 | 377.2561614 | 2666.666667 | 10 | 440 | 166 | 365 | non-insulation | Aluminium sheet | white porcelain | 39.6 |
| RFM | 0.75-2000-2 | water cooling | 0.75 | 2000 | 2 | 282.9421211 | 2666.666667 | 10 | 440 | 166 | 300 | non-insulation | Aluminium sheet | white porcelain | 33.1 |
| RFM | 0.75-2000-2.5(9) | water cooling | 0.75 | 2000 | 2.5 | 226.3536968 | 2666.666667 | 10 | 440 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 37.0 |
| RFM | 1.0-1000-0.5 | water cooling | 1 | 1000 | 0.5 | 318.3098862 | 1000 | 6 | 440 | 166 | 340 | non-insulation | Aluminium sheet | white porcelain | 35.1 |
| RFM | 1.0-1000-1 | water cooling | 1 | 1000 | 1 | 159.1549431 | 1000 | 4 | 336 | 142 | 325 | non-insulation | Aluminium sheet | white porcelain | 22.3 |
| RFM | 1.0-1000-1(2) | water cooling | 1 | 1000 | 1 | 159.1549431 | 1000 | 6 | 336 | 142 | 295 | non-insulation | Aluminium sheet | white porcelain | 20.8 |
| RFM | 1.0-1400-1 | water cooling | 1 | 1400 | 1 | 222.8169203 | 1400 | 6 | 336 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 28.0 |
| RFM | 1.0-2000-0.5(2) | water cooling | 1 | 2000 | 0.5 | 636.6197724 | 2000 | 8 | 440 | 207 | 440 | non-insulation | Aluminium sheet | white porcelain | 56.5 |
| RFM | 1.0-2000-0.7 | water cooling | 1 | 2000 | 0.7 | 454.7284088 | 2000 | 8 | 440 | 166 | 465 | non-insulation | Aluminium sheet | white porcelain | 47.8 |
| RFM | 1.0-2000-1 | water cooling | 1 | 2000 | 1 | 318.3098862 | 2000 | 8 | 440 | 166 | 350 | non-insulation | Aluminium sheet | white porcelain | 36.8 |
| RFM | 1.2-1000-1 | water cooling | 1.2 | 1000 | 1 | 110.524266 | 833.3333333 | 4 | 336 | 142 | 300 | non-insulation | Aluminium sheet | white porcelain | 20.6 |
| RFM | 1.2-1200-0.7 | water cooling | 1.2 | 1200 | 0.7 | 189.4701703 | 1000 | 6 | 440 | 166 | 300 | non-insulation | Aluminium sheet | white porcelain | 30.6 |
| RFM | 1.2-1400-0.7 | water cooling | 1.2 | 1400 | 0.7 | 221.0485321 | 1166.666667 | 6 | 440 | 166 | 325 | non-insulation | Aluminium sheet | white porcelain | 33.1 |
| RFM | 1.2-2000-0.5 | water cooling | 1.2 | 2000 | 0.5 | 442.0970641 | 1666.666667 | 8 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 54.5 |
| RFM | 1.2-2000-0.7(4) | water cooling | 1.2 | 2000 | 0.7 | 315.7836172 | 1666.666667 | 8 | 440 | 166 | 420 | non-insulation | Aluminium sheet | white porcelain | 43.4 |
| RFM | 1.2-2000-1(3) | water cooling | 1.2 | 2000 | 1 | 221.0485321 | 1666.666667 | 8 | 440 | 166 | 325 | non-insulation | Aluminium sheet | white porcelain | 33.7 |
| RFM | 1.4-2000-0.5 | water cooling | 1.4 | 2000 | 0.5 | 324.8060063 | 1428.571429 | 8 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 53.7 |
| RFM | 1.4-2000-0.7 | water cooling | 1.4 | 2000 | 0.7 | 232.0042902 | 1428.571429 | 6 | 440 | 166 | 415 | non-insulation | Aluminium sheet | white porcelain | 41.3 |
| RFM | 1.5-1000-1 | water cooling | 1.5 | 1000 | 1 | 70.73553026 | 666.6666667 | 6 | 336 | 142 | 340 | non-insulation | Aluminium sheet | white porcelain | 22.7 |
| RFM | 1.5-1000-2.5 | water cooling | 1.5 | 1000 | 2.5 | 28.29421211 | 666.6666667 | 4 | 336 | 166 | 240 | non-insulation | Aluminium sheet | white porcelain | 18.1 |
| RFM | 1.5-2000-0.5 | water cooling | 1.5 | 2000 | 0.5 | 282.9421211 | 1333.333333 | 6 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 51.7 |
| RFM | 1.5-2000-0.7 | water cooling | 1.5 | 2000 | 0.7 | 202.101515 | 1333.333333 | 6 | 440 | 166 | 410 | non-insulation | Aluminium sheet | white porcelain | 40.3 |
| RFM | 1.5-2000-1 | water cooling | 1.5 | 2000 | 1 | 141.4710605 | 1333.333333 | 6 | 440 | 166 | 300 | non-insulation | Aluminium sheet | white porcelain | 30.5 |
| RFM | 1.5-2500-2.5(2) | water cooling | 1.5 | 2500 | 2.5 | 70.73553026 | 1666.666667 | 8 | 440 | 142 | 400 | non-insulation | Aluminium sheet | white porcelain | 33.6 |
| RFM | 1.5-3000-1(2) | water cooling | 1.5 | 3000 | 1 | 212.2065908 | 2000 | 8 | 440 | 166 | 430 | non-insulation | Aluminium sheet | white porcelain | 43.3 |
| RFM | 1.5-4000-1(3) | water cooling | 1.5 | 4000 | 1 | 282.9421211 | 2666.666667 | 10 | 440 | 207 | 410 | non-insulation | Aluminium sheet | white porcelain | 51.4 |
| RFM | 1.6-2000-0.5(8) | water cooling | 1.6 | 2000 | 0.5 | 248.6795986 | 1250 | 6 | 390 | 205 | 430 | non-insulation | Aluminium sheet | white porcelain | 45.2 |
| RFM | 1.7-2000-0.5 | water cooling | 1.7 | 2000 | 0.5 | 220.2836583 | 1176.470588 | 6 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 51.8 |
| RFM | 1.7-2260-0.5(4) | forced-air cooling | 1.7 | 2260 | 0.5 | 248.9205338 | 1329.411765 | 6 | 390 | 205 | 445 | Insulation | Aluminium sheet | white porcelain | 49.8 |
| RFM | 1.8-3000-1 | water cooling | 1.8 | 3000 | 1 | 147.365688 | 1666.666667 | 8 | 440 | 166 | 436 | non-insulation | Aluminium sheet | white porcelain | 43.1 |
| RFM | 2.5-2000-1(3) | water cooling | 2.5 | 2000 | 1 | 50.92958179 | 800 | 1 | 390 | 178 | 330 | Insulation | Aluminium sheet | white porcelain | 31.6 |
| RFM | 2.5-4000-1 | water cooling | 2.5 | 4000 | 1 | 101.8591636 | 1600 | 1 | 390 | 175 | 485 | Insulation | Aluminium sheet | Black porcelain | 44.4 |
| RFM | 2.5-4850-1.5 | water cooling | 2.5 | 4850 | 1.5 | 82.34 | 1940 | 1 | 440 | 170 | 500 | Insulation | Aluminium sheet | white porcelain | 51.9 |
| RFM | 3.0-3000-1(2) | water cooling | 3 | 3000 | 1 | 53.0516477 | 1000 | 1 | 391 | 176 | 355 | Insulation | Patterned aluminum sheet | Black porcelain | 32.5 |
| RFM | 3.0-3500-1(3) | water cooling | 3 | 3500 | 1 | 61.89358898 | 1166.666667 | 1 | 391 | 176 | 405 | Insulation | Patterned aluminum sheet | Black porcelain | 36.6 |
| RFM | 3.0-4000-1 | water cooling | 3 | 4000 | 1 | 70.73553026 | 1333.333333 | 1 | 390 | 178 | 500 | Insulation | Aluminium sheet | Black porcelain | 46.3 |
| RFM | 3.0-5000-1(2) | water cooling | 3 | 5000 | 1 | 88.41941283 | 1666.666667 | 8 | 441 | 167 | 535 | Insulation | Patterned aluminum sheet | Black porcelain | 51.4 |
| RFM | 3.0-13400-1.2 | water cooling | 3 | 13400 | 1.2 | 197.470022 | 4466.666667 | 2 | 560 | 218 | 775 | Insulation | Aluminium sheet | Black porcelain | 130.2 |
| RFM | 3.05-8682-0.7 | water cooling | 3.05 | 8682 | 0.7 | 212.1984437 | 2846.557377 | 2 | 559 | 203 | 711 | Insulation | Patterned aluminum sheet | Black porcelain | 103.5 |
| RFM | 3.2-4500-1 | water cooling | 3.2 | 4500 | 1 | 69.9411371 | 1406.25 | 6 | 391 | 167 | 530 | Insulation | Patterned aluminum sheet | Black porcelain | 45.5 |
| RFM | 3.2-5000-0.6 | water cooling | 3.2 | 5000 | 0.6 | 129.5206243 | 1562.5 | 6 | 441 | 215 | 590 | Insulation | Patterned aluminum sheet | Black porcelain | 70.2 |
| RFM | 3.2-6000-0.5 | water cooling | 3.2 | 6000 | 0.5 | 186.5096989 | 1875 | 8 | 441 | 208 | 715 | Insulation | Patterned aluminum sheet | Black porcelain | 81.8 |
| RFM | 3.2-6000-0.7 | water cooling | 3.2 | 6000 | 0.7 | 133.2212135 | 1875 | 8 | 441 | 208 | 540 | Insulation | Patterned aluminum sheet | Black porcelain | 62.8 |
| RFM | 3.5-3000-1 | water cooling | 3.5 | 3000 | 1 | 38.98 | 857 | 1 | 440 | 170 | 420 | Insulation | Aluminium sheet | white porcelain | 42.6 |
| RFM | 3.5-5000-0.5 | water cooling | 3.5 | 5000 | 0.5 | 129.9224025 | 1428.571429 | 6 | 441 | 215 | 755 | Insulation | Patterned aluminum sheet | Black porcelain | 93.8 |
| RFM | 3.6-5000-0.5 | water cooling | 3.6 | 5000 | 0.5 | 122.80474 | 1388.888889 | 6 | 441 | 215 | 660 | Insulation | Patterned aluminum sheet | Black porcelain | 82.6 |
| RFM | 3.6-5000-1 | water cooling | 3.6 | 5000 | 1 | 61.40237002 | 1388.888889 | 6 | 441 | 176 | 435 | Insulation | Patterned aluminum sheet | Black porcelain | 47.2 |
| RFM | 3.6-6000-1 | water cooling | 3.6 | 6000 | 1 | 73.68284402 | 1666.666667 | 1 | 440 | 218 | 560 | Insulation | Aluminium sheet | white porcelain | 69.6 |
| RFM | 1.2-2000-0.5(13) | water cooling | 1.2 | 2000 | 0.5 | 442.0970641 | 1666.666667 | 8 | 440 | 207 | 436 | non-insulation | Aluminium sheet | white porcelain | 54.4 |
| RFM | 1.4-2000-0.5(8) | water cooling | 1.4 | 2000 | 0.5 | 324.8060063 | 1428.571429 | 1 | 390 | 205 | 440 | Insulation | Aluminium sheet | white porcelain | 47.3 |
| RFM | 1.5-2000-0.5(3) | water cooling | 1.5 | 2000 | 0.5 | 282.9421211 | 1333.333333 | 1 | 390 | 205 | 405 | Insulation | Aluminium sheet | white porcelain | 43.9 |
| RFM | 1.5-3000-0.5(2) | water cooling | 1.5 | 3000 | 0.5 | 424.4131816 | 2000 | 1 | 391 | 206 | 525 | Insulation | Patterned aluminum sheet | Black porcelain | 56.4 |
| RFM | 1.6-2000-0.25(8) | water cooling | 1.6 | 2000 | 0.25 | 497.3591972 | 1250 | 6 | 390 | 205 | 680 | non-insulation | Aluminium sheet | white porcelain | 71.3 |
| RFM | 1.7-1500-0.15 | forced-air cooling | 1.7 | 1500 | 0.15 | 550.7091456 | 882.3529412 | 4 | 440 | 205 | 635 | Insulation | Aluminium sheet | white porcelain | 76.0 |
| RFM | 1.7-1500-0.25(8) | water cooling | 1.7 | 1500 | 0.25 | 330.4254874 | 882.3529412 | 4 | 390 | 205 | 615 | non-insulation | Aluminium sheet | white porcelain | 62.5 |
| RFM | 1.7-2260-0.5(8) | water cooling | 1.7 | 2260 | 0.5 | 248.9205338 | 1329.411765 | 6 | 390 | 205 | 430 | non-insulation | Aluminium sheet | white porcelain | 46.2 |
| RFM | 2.2-2000-0.5(3) | water cooling | 2.2 | 2000 | 0.5 | 131.5330108 | 909.0909091 | 6 | 330 | 165 | 775 | non-insulation | Aluminium sheet | white porcelain | 54.0 |
| RFM | 2.5-2000-0.3(8) | water cooling | 2.5 | 2000 | 0.3 | 169.7652726 | 800 | 4 | 390 | 205 | 640 | non-insulation | Aluminium sheet | white porcelain | 63.2 |
| RFM | 2.5-2000-0.5 | water cooling | 2.5 | 2000 | 0.5 | 101.8591636 | 800 | 1 | 390 | 205 | 390 | Insulation | Aluminium sheet | white porcelain | 39.6 |
| RFM | 2.5-4000-0.5 | water cooling | 2.5 | 4000 | 0.5 | 203.7183272 | 1600 | 1 | 391 | 206 | 600 | Insulation | Patterned aluminum sheet | Black porcelain | 61.0 |
| RFM | 2.5-4500-0.3 | water cooling | 2.5 | 4500 | 0.3 | 381.9718634 | 1800 | 1 | 320 | 302 | 910 | Insulation | Aluminium sheet | Black porcelain | 112.0 |
| RFM | 2.8-5000-0.5 | water cooling | 2.8 | 5000 | 0.5 | 203.0037539 | 1785.714286 | 1 | 391 | 206 | 760 | Insulation | Patterned aluminum sheet | Black porcelain | 75.8 |
| RFM | 2.8-6000-0.5 | water cooling | 2.8 | 6000 | 0.5 | 243.6045047 | 2142.857143 | 1 | 391 | 206 | 815 | Insulation | Patterned aluminum sheet | Black porcelain | 82.5 |
| RFM | 3.0-3000-0.5(2) | water cooling | 3 | 3000 | 0.5 | 106.1032954 | 1000 | 1 | 390 | 205 | 500 | Insulation | Aluminium sheet | Black porcelain | 49.8 |
| RFM | 3.0-4000-0.5 | water cooling | 3 | 4000 | 0.5 | 141.4710605 | 1333.333333 | 1 | 391 | 206 | 555 | Insulation | Patterned aluminum sheet | Black porcelain | 56.2 |
| RFM | 3.0-5000-0.5 | water cooling | 3 | 5000 | 0.5 | 176.8 | 1667 | 1 | 561 | 221 | 530 | Insulation | Patterned aluminum sheet | Black porcelain | 81.1 |
| RFM | 3.2-4000-0.5(4) | water cooling | 3.2 | 4000 | 0.5 | 124.3397993 | 1250 | 1 | 391 | 167 | 660 | Insulation | Patterned aluminum sheet | Black porcelain | 54.5 |
| RFM | 3.2-5000-0.5(12) | water cooling | 3.2 | 5000 | 0.5 | 155.4247491 | 1562.5 | 8 | 441 | 215 | 720 | Insulation | Patterned aluminum sheet | Black porcelain | 84.0 |
| RFM | 3.3-6360-0.7 | water cooling | 3.3 | 6360 | 0.7 | 132.8 | 1927.27 | 1 | 561 | 211 | 720 | Insulation | Aluminium sheet | Black porcelain | 110.5 |
| RFM | 3.3-7700-0.5 | water cooling | 3.3 | 7700 | 0.5 | 225.07 | 2333.3 | 1 | 561 | 211 | 890 | Insulation | Patterned aluminum sheet | Black porcelain | 136.8 |
| RFM | 2.5-5000-0.5 | water cooling | 2.5 | 5000 | 0.5 | 254.6479089 | 2000 | 1 | 559 | 203 | 560 | Insulation | Patterned aluminum sheet | Black porcelain | 81.6 |
| RAM | 2.5-6000-0.3 | water cooling | 2.5 | 6000 | 0.3 | 509.2958179 | 2400 | 2 | 559 | 203 | 787 | Insulation | Patterned aluminum sheet | Black porcelain | 112.2 |
| RAM | 2.5-6000-0.5 | water cooling | 2.5 | 6000 | 0.5 | 305.5774907 | 2400 | 1 | 559 | 175 | 665 | Insulation | Patterned aluminum sheet | Black porcelain | 83.7 |
| RAM | 3.0-5000-0.5(2) | water cooling | 3 | 5000 | 0.5 | 176.8388257 | 1666.666667 | 1 | 559 | 191 | 625 | Insulation | Patterned aluminum sheet | Black porcelain | 90.4 |
| RAM | 3.0-6000-0.3(2) | water cooling | 3 | 6000 | 0.3 | 353.6776513 | 2000 | 2 | 559 | 191 | 787 | Insulation | Patterned aluminum sheet | Black porcelain | 104.8 |
| RAM | 3.0-6000-0.5(6) | water cooling | 3 | 6000 | 0.5 | 212.2065908 | 2000 | 2 | 559 | 203 | 591 | Insulation | Patterned aluminum sheet | Black porcelain | 83.5 |
| RAM | 3.0-7500-0.3 | water cooling | 3 | 7500 | 0.3 | 442.0970641 | 2500 | 1 | 559 | 203 | 940 | Insulation | Patterned aluminum sheet | Black porcelain | 129.2 |
| RAM | 3.2-5000-0.3 | water cooling | 3.2 | 5000 | 0.3 | 259.0412485 | 1562.5 | 2 | 559 | 191 | 711 | Insulation | Patterned aluminum sheet | Black porcelain | 94.3 |
| RAM | 3.2-5000-0.5(2) | water cooling | 3.2 | 5000 | 0.5 | 155.4247491 | 1562.5 | 1 | 559 | 191 | 545 | Insulation | Patterned aluminum sheet | Black porcelain | 78.9 |
| RAM | 3.2-7000-0.5 | water cooling | 3.2 | 7000 | 0.5 | 217.5946488 | 2187.5 | 1 | 559 | 203 | 690 | Insulation | Patterned aluminum sheet | Black porcelain | 105.1 |
| RAM | 3.4-7000-0.5 | water cooling | 3.4 | 7000 | 0.5 | 192.748201 | 2058.823529 | 1 | 559 | 203 | 780 | Insulation | Patterned aluminum sheet | Black porcelain | 117.2 |
| RAM | 3.5-5200-0.5 | water cooling | 3.5 | 5200 | 0.5 | 135.1192986 | 1485.714286 | 1 | 559 | 175 | 630 | Insulation | Patterned aluminum sheet | Black porcelain | 80.1 |
| RAM | 3.5-6000-0.5(2) | water cooling | 3.5 | 6000 | 0.5 | 155.906883 | 1714.285714 | 2 | 559 | 203 | 591 | Insulation | Patterned aluminum sheet | Black porcelain | 88.4 |
| RAM | 3.6-6000-0.5 | water cooling | 3.6 | 6000 | 0.5 | 147.365688 | 1666.666667 | 1 | 559 | 203 | 655 | Insulation | Patterned aluminum sheet | Black porcelain | 94.5 |
| RFM | 3.8-7500-0.5 | water cooling | 3.8 | 7500 | 0.5 | 165.327157 | 1973.684211 | 1 | 559 | 203 | 845 | Insulation | Patterned aluminum sheet | Black porcelain | 121.8 |
| RAM | 4.2-5000-0.3 | water cooling | 4.2 | 5000 | 0.3 | 150.3731511 | 1190.47619 | 1 | 559 | 203 | 711 | Insulation | Patterned aluminum sheet | Black porcelain | 101.7 |
| RFM | 4.0-0.12-40 | water cooling | 4 | 483 | 40 | 0.120112246 | 120.75 | 1 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 5.4 |
| RFM | 4.0-483-40(2) | water cooling | 4 | 483 | 40 | 0.120112246 | 120.75 | 1 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 5.4 |
| RFM | 4.0-0.22-30 | water cooling | 4 | 664 | 30 | 0.220276008 | 166 | 1 | 210 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 6.3 |
| RFM | 4.0-691-23 | water cooling | 4 | 691 | 23 | 0.3 | 172.75 | 1 | 210 | 130 | 160 | Insulation | Aluminium sheet | white porcelain | 7.1 |
| RFM | 4.0-694-23(2) | water cooling | 4 | 694 | 23 | 0.300145463 | 173.5 | 1 | 210 | 130 | 160 | Insulation | Aluminium sheet | white porcelain | 7.2 |
| RFM | 4.0-700-40 | water cooling | 4 | 700 | 40 | 0.174075719 | 175 | 2 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 5.9 |
| RFM | 4.0-0.18-40 | water cooling | 4 | 724 | 40 | 0.18013535 | 181 | 1 | 210 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 6.7 |
| RFM | 4.0-803-40 | water cooling | 4 | 803 | 40 | 0.2 | 201 | 2 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 6.2 |
| RFM | 4.0-0.3-30 | water cooling | 4 | 905 | 30 | 0.300225584 | 226.25 | 1 | 210 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 6.4 |
| RFM | 4.0-0.18-50 | water cooling | 4 | 905 | 50 | 0.18 | 226.25 | 1 | 210 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 7.0 |
| RFM | 4.0-965-40 | water cooling | 4 | 965 | 40 | 0.239975813 | 241.25 | 2 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 5.9 |
| RFM | 4.0-0.2-50 | water cooling | 4 | 1005 | 50 | 0.200039809 | 251.25 | 1 | 210 | 120 | 175 | Insulation | Aluminium sheet | white porcelain | 6.7 |
| RFM | 4.0-0.34-30 | water cooling | 4 | 1025 | 30 | 0.340034501 | 256.25 | 1 | 290 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 8.4 |
| RFM | 4.0-0.4-30(3) | water cooling | 4 | 1206 | 30 | 0.399876795 | 301.5 | 1 | 170 | 126 | 150 | Insulation | Aluminium sheet | white porcelain | 5.7 |
| RFM | 4.0-0.42-30 | water cooling | 4 | 1267 | 30 | 0.420315817 | 316.75 | 1 | 303 | 120 | 160 | Insulation | Aluminium sheet | white porcelain | 8.9 |
| RFM | 4.0-0.24×2-30 | water cooling | 4 | 1447 | 30 | 0.48 | 361.75 | 2 | 260 | 120 | 110 | Insulation | Aluminium sheet | white porcelain | 6.1 |
| RFM | 4.0-0.48-30 | water cooling | 4 | 1448 | 30 | 0.480360934 | 362 | 1 | 290 | 120 | 175 | Insulation | Aluminium sheet | white porcelain | 9.1 |
| RFM | 4.0-0.56-30 | water cooling | 4 | 1689 | 30 | 0.56 | 422.25 | 1 | 200 | 120 | 150 | Insulation | Aluminium sheet | white porcelain | 7.1 |
| RFM | 4.0-0.6-30 | water cooling | 4 | 1810 | 30 | 0.600451168 | 452.5 | 1 | 303 | 120 | 180 | Insulation | Aluminium sheet | white porcelain | 10.3 |
| RFM | 4.0-0.625-30 | water cooling | 4 | 1885 | 30 | 0.625 | 471.25 | 1 | 250 | 120 | 175 | Insulation | Aluminium sheet | white porcelain | 9.3 |
| RFM | 4-0.32×2-30 | water cooling | 4 | 1930 | 30 | 0.64 | 482.5 | 2 | 260 | 120 | 110 | Insulation | Aluminium sheet | white porcelain | 6.1 |
| RFM | 4.0-2011-20(2) | water cooling | 4 | 2011 | 20 | 1 | 502.75 | 1 | 250 | 126 | 220 | Insulation | Aluminium sheet | white porcelain | 12.6 |
| RFM | 4.0-2170-30(4) | water cooling | 4 | 2170 | 30 | 0.719844545 | 542.75 | 1 | 303 | 126 | 165 | Insulation | Aluminium sheet | white porcelain | 10.9 |
| RFM | 4.0-0.72-30(3) | water cooling | 4 | 2171 | 30 | 0.719844545 | 542.75 | 1 | 210 | 126 | 175 | Insulation | Aluminium sheet | white porcelain | 8.5 |
| RFM | 4.0-0.75-30 | water cooling | 4 | 2262 | 30 | 0.750398089 | 565.5 | 1 | 250 | 120 | 180 | non-Insulation | Aluminium sheet | white porcelain | 8.6 |
| RFM | 4.0-0.8-30(2) | water cooling | 4 | 2413 | 30 | 0.800085162 | 603.25 | 1 | 210 | 126 | 180 | Insulation | Aluminium sheet | white porcelain | 8.8 |
| RFM | 4.0-0.84-30 | water cooling | 4 | 2533 | 30 | 0.840299894 | 633.25 | 1 | 303 | 126 | 220 | Insulation | Aluminium sheet | white porcelain | 12.5 |
| RFM | 4.0-0.68-40 | water cooling | 4 | 2734 | 40 | 0.680234873 | 683.5 | 1 | 303 | 126 | 210 | Insulation | Aluminium sheet | white porcelain | 12.1 |
| RFM | 4.0-2894-30(2) | water cooling | 4 | 2894 | 30 | 0.959903251 | 723.75 | 1 | 303 | 126 | 185 | Insulation | Aluminium sheet | white porcelain | 11.6 |
| RFM | 4.0-0.96-30 | water cooling | 4 | 2895 | 30 | 0.96 | 723.75 | 1 | 303 | 126 | 220 | Insulation | Aluminium sheet | white porcelain | 13.9 |
| RFM | 4.0-1-30(2) | water cooling | 4 | 3016 | 30 | 1 | 754 | 2 | 303 | 126 | 170 | Insulation | Aluminium sheet | white porcelain | 11.5 |
| RFM | 4.0-1.2-30 | water cooling | 4 | 3619 | 30 | 1.2 | 904.75 | 1 | 303 | 150 | 210 | Insulation | Aluminium sheet | white porcelain | 16.2 |
| RFM | 4.0-1.5-30 | water cooling | 4 | 4524 | 30 | 1.5 | 1131 | 1 | 336 | 150 | 220 | Insulation | Aluminium sheet | white porcelain | 19.6 |
| RFM | 4.0-2-30 | water cooling | 4 | 6032 | 30 | 2 | 1508 | 1 | 336 | 126 | 350 | Insulation | Aluminium sheet | white porcelain | 24.6 |
| RFM | 8.0-0.06-300 | water cooling | 8 | 7238 | 300 | 0.06 | 900 | 2 | 336 | 166 | 395 | Insulation | Aluminium sheet | Black porcelain | 34.0 |
Frequently Asked Questions (FAQ)
What are Series Resonant capacitors primarily used for?
Series Resonant capacitors are designed for high-power Medium Frequency Induction Furnaces, specifically used in applications like Silicon Melting or steel melting. They help drive the induction heating load at its natural resonant frequency.
Why is water cooling necessary for these film capacitors?
Induction heating systems generate high operating currents which produce significant heat due to dielectric and connection losses. An efficient internal water-cooling design is critical to dissipate this heat, ensuring stable performance and prolonged component reliability.
What are the key manufacturing features of Flair water-cooled capacitors?
They feature brass terminals brazed with copper tubes and insulating bushings, pressure switches for internal pressure control, an all-film dielectric structure with high-quality impregnating oil, and an unpainted textured Mg-Al alloy plate case.
How is the quality of these induction heating capacitors guaranteed?
Flair implements a rigorous quality check process including testing winding cores with fully-automatic winding machines, intermediate checks during welding and assembly, vacuum impregnation, leakage tests, capacitance measurements, loss factor tests, and dielectric tests between terminals and casing.
What role do DC filter capacitors play in the induction heating circuit?
In induction heating systems, particularly IGBT-based LC series resonant circuits, DC filter capacitors act as energy storage elements and filters in the DC circuit. They help mitigate harmonic currents and minimize overall power loss to enhance system efficiency.