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Power Electronic Capacitor
Power Electronic Capacitor

Power electronic capacitor is a metallized film capacitor in nature. It's compact, non-polarized and resistant to large current impact with low loss but high reliability, stability and safety. Instrumental in all sorts of power electronic system converters, it is in extensive use in flexible DC power transmission, rail transit, military equipment, industrial, mining, health - care, and new energy.


Product Series
Application Area
  • Industrial frequency conversion
  • High power motor drive
  • Photovoltaic
  • Rail Transit
  • Power electronics
  • Wind power
Technical Features
Experimental ability
The company has complete testing equipment and can complete the full set of routine and type tests of capacitors in accordance with relevant standards. This includes a professional partial discharge shielding room that can perform extreme shell partial discharge testing on products. It has the advantages of low background partial discharge and accurate partial discharge testing. In addition, it is equipped with a fairly complete set of preliminary testing and verification equipment, including component durability testing equipment, component impact discharge equipment, and double 85 testing equipment for cylindrical products.
High end production line environment, advanced equipment and technology
The workshop maintains constant temperature and humidity, the winding room is a thousand level purification room, and the production environment is the best in the same capacitor industry. All production equipment is customized according to the manufacturing requirements of high-end metalized film capacitors from top manufacturers with international and domestic technological strength. Throughout the entire production process, the equipment matching is perfect, the automation level is high, and the product quality is stable and consistent. The production and manufacturing process is continuously adjusted based on the advice of international and domestic technical experts, combined with actual R&D process experience. Existing process and product technical requirements The equipment capabilities are highly compatible.
R&D Team

The R&D team of Jiashan Sunking Power Electronic Capacitor Co., Ltd. comprises over 20 professionals dedicated to the research, development, design, and manufacturing of metallized polypropylene film DC-link capacitors and pulse capacitors.

DC-link capacitors are primarily used in flexible DC transmission, locomotives, static var generators (SVGs), mining inverters, photovoltaics, wind power, and other new energy applications. Pulse capacitors are widely applied in military, industrial, medical, and exploration fields.

· Total R&D team over 20 people

Manufacturing capability
Jiashan Sunking Power Electronic Capacitor Co., Ltd

Mainly engaged in research, development, design, and manufacturing of metallized polypropylene film DC link capacitor and pulse capacitor.


Ningbo Hairong Electric Co., Ltd. 

Specializing in the research and development, manufacturing, and sales of high-power power electronic capacitor, induction furnace capacitor, locomotive capacitor, and power capacitor. 


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