Summary:
The electric heating capacitor uses the coarsened polypropylene film and high-performance liquid (excluding PCB) as the composite medium, the high-purity aluminum thin foil as the electrode plate, the porcelain sleeve screw and cooling water pipe as the outlet terminal, the aluminum alloy plate as the shell and equipped with water cooling pipe. The shape is mostly rectangular box structure.

Electrothermal capacitors are mainly used in controllable or adjustable AC voltage systems with rated voltage not greater than 4.8kv and frequency of 100kHz and below. They are specially used to improve the power factor of induction heating, melting, stirring or casting devices and similar applications. The product performance meets the requirements of GB / t3984-2004 power vessels for induction heating devices. (standard GB / t3984.1-2004 / iec60110-1998).

Product service conditions:
1. The altitude shall not exceed 1000m and shall be installed indoors.
2. The installation site shall be free of violent mechanical vibration, harmful gas, steam and conductive dust.
3. The inlet temperature of cooling water shall not exceed 30 ° C. For capacitors below 1000kvar, the water flow shall not be less than 4L / min, and for capacitors above 1000KVA
4. Not less than 6L / min. The air temperature around the capacitor shall not exceed 50 ° C.
5. The long-term overvoltage (not more than 4 hours in 24 hours) shall not exceed 1.1un, and the long-term overcurrent (including harmonic current) shall not exceed 1.3in.

Product structure:
RFM type water-cooled all film electric heating capacitor is mainly composed of core and shell. The core consists of an array of elements, and one side of the core (common plate) is welded with a cooling water pipe (except for air self cooling products); The shell is made of aluminum alloy by bending welding, the two side walls are welded with brackets for lifting and installation, and the box cover is equipped with inlet and outlet water pipes and porcelain bushing copper wiring terminals. In addition to the core, the box is filled with insulating liquid with excellent performance.

Model and meaning of electrothermal capacitor:
R: Electrothermal capacitor
F: Liquid medium code (diaryl ethane)
M: Solid medium code (polypropylene film)
0.75: rated voltage (kV)
1000: rated capacitance (kvar)
1: Rated frequency (kHz)
S: Endnote No. (water cooled)
B: Adjustable