Industrial Capacitors,
precisely engineered.

Hang Zhou Ou Neng Electric Co., Ltd. designs and manufactures industrial capacitors for demanding electric applications — spanning pulsed energy systems for nuclear fusion, induction heating and melting, and power generation, transmission, and distribution.

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200+
Custom specs delivered
Since 2002
Industrial capacitor manufacturing
19
Granted patents
100%
Factory tested
Applications

Built for the World's Most Demanding Applications

DC Capacitors

For series resonant circuits in medium-frequency power supplies and DC filtering in power electronics.
Application

DC Filtering & Series Resonance

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Special Application Capacitors

Purpose-engineered capacitors for UHVDC transmission, rail transit, high-frequency power supplies, and industrial protection applications.
Application

UHVDC, HF Power & Custom Applications

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Pulse Capacitors

Low-inductance, low-ESR pulse capacitors with high energy density and high peak discharge current capability.
Application

Pulsed Power & Fusion Energy

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High-Voltage Capacitors

High dielectric strength, low partial discharge power capacitors for reactive power compensation and harmonic filtering in AC systems.
Application

AC System Reactive Power Compensation

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Induction Heating Capacitors

Low tan δ, low temperature rise, long-life resonant capacitors for medium and high-frequency induction heating and melting systems.
Application

Induction Heating & Melting

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Application

DC Filtering & Series Resonance

DC capacitors for both IGBT and thyristor (SCR) converter systems, serving series resonant circuit energy storage and DC bus filtering with high ripple current capability and long service life.
Widely used in medium-frequency power supplies, variable-frequency drives, UPS, solar inverters, and industrial motor drive systems.

Medium-frequency power suppliesVariable-frequency drivesUPSSolar invertersIndustrial motor drivesPower electronic equipment
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Our Story

Industrial Capacitor Manufacturing Since 2002

01

Founded in 2002, Hang Zhou Ou Neng Electric Co., Ltd. (Ou Neng Electric) is a Chinese manufacturer of industrial power capacitors, integrating R&D, design, production, sales, and service under one roof, with an 80,000 ft² production facility in Hangzhou, Zhejiang.

02

For selected capacitor specifications and production mixes, annual manufacturing capacity can exceed 100,000 units. Our capabilities are backed by 19 granted patents, precision manufacturing, deep customization, and ISO 9001 / 14001 / 45001 management systems.

Quality & Standards

Engineered to Specification. Tested Before Delivery.

100% Factory Tested

Every capacitor is tested for voltage withstand, capacitance, and tan δ before release — built for stable, long service life under continuous industrial duty cycles.

Test report on request

Product-Specific Standards

Induction heating capacitors are designed to GB/T 3984 and IEC 60110; high-voltage shunt capacitors are designed to GB/T 11024 and IEC 60871.

GB/T 3984 · IEC 60110 · GB/T 11024 · IEC 60871

Full Technical Documentation

Datasheets, dimensional drawings, test certificates, and conformance documents provided with every order. Engineering clarification available.

Datasheets · drawings · certs

ISO Certified

Certified to ISO 9001:2015 (quality management), ISO 14001:2015 (environmental management), and ISO 45001:2018 (occupational health & safety).

ISO 9001 · ISO 14001 · ISO 45001

Ready to Power Your Next Project?

Tell us your application, operating frequency, voltage, capacitance, and installation requirements so our team can review the project.

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