Premier Supplier

Reliable MV/HV Capacitors & cap bank Manufacturer

Premium Capacitors& Capacitor bank/: Engineered for demanding applications including power factor correction (PFC), harmonic filtering, energy transmission systems, drive technology, impulse test solutions, and diverse AC/DC applications.

reliable Quality

China’s premier automated capacitor production line, featuring cutting-edge technology and ISO 9001/ 14001/ OHSAS 18001 certifications, compliant with global quality, environmental standards.

Cost-Effective

Our cost leadership stems from advanced automation, economies of scale, and vertically integrated supply chains, ensuring competitive pricing and sustainable savings without compromising quality.

Value Long-Term Cooperation

We prioritize enduring partnerships through flexible collaboration models, joint R&D innovation, and lifecycle technical support, fostering trust and mutual growth in dynamic energy markets.

Shangdian capacitor units & capacitor banks

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Over 70 Years capacitor Industry Experience

qulified vender of SIEMENS energy , CRRC , ABB

ISO 9001 /14001 Certified

High quality capacitors with copetitive price

exported to over 20 countries with 100+ successful projects

Quality isn't just checked, it's engineered in.

At Shangdian Capacitor, our relentless pursuit of quality begins in our state-of-the-art ISO 5 Class 100 cleanroom environment. Combined with highly automated production lines and rigorous automated testing, we ensure every product meets the highest standards for performance, reliability, and unwavering consistency. Experience the difference precision manufacturing makes.

Who We Are

Partner with us for the long term, We value lasting collaboration.

Extremely durable capacitor unit and capacitor banks engineered for maximum longevity and cost-effective operation.

70+ years

experience in designing and manufacturing capacitors

your trusted partner

The Choice of Leading Brands

Testimonials

What Our Clients Say

Shangdian Capacitor has been our primary PFC capacitor supplier for over a decade. Their products offer outstanding reliability, and their supply chain ensures predictable, timely delivery – critical factors for our operations. We have successfully integrated Shangdian capacitors into numerous high-impact projects, such as nickel ore processing in Indonesia and copper extraction in Zambia, with excellent results.

John DoeFrom USA

Service defines Shangdian. They anticipate needs, respond faster than any supplier we’ve used, and view our success as shared success. This commitment to partnership – not just transactions – keeps us loyal across continents and projects

ZeynepFrom Turkey

Shangdian solved the impossible. For a mission-critical pulse capacitor needing unprecedented reliability in extreme environments, their R&D team developed, validated, and delivered a custom solution faster than any competitor. When failure wasn’t an option, neither was any other supplier

AhmadFrom Indonesia

Industries We Serve

Shangdian Capacitor brings over 70 years of focused industry knowledge to the global supply of medium voltage (MV) and high voltage (HV) capacitors & capacitor banks. We provide engineered, application-specific solutions for critical needs across leading sectors.

Strategic placement of capacitor banks along transmission and distribution networks decreases reactive power demand, enhancing system efficiency. This improves power grid performance through reduced line losses, greater transmission capacity, and better voltage stability. Ultimately, capacitor banks boost overall grid reliability and operational effectiveness.

Aluminum electrolysis plants are a major source of harmonic pollution in power systems due to their extensive use of power electronic rectifiers. These harmonics distort the grid voltage, prevent reactive power compensation systems from operating effectively, and lead to recurring penalties for non-compliance with power factor regulations.

Passive harmonic filters are commonly used to mitigate harmonics. They not only reduce harmonic distortion but also supply reactive power, improving power factor and voltage stability.

Steel mills, power factor correction systems and harmonic filters for the compensation and filtering of harmonics produced by distorting loads of the plant, by EAF furnaces and LF furnaces; harmonic filters are made for the various processing lines, for SVC and STATCOM, induction furnaces capacitors and RC filters to protect EAF-LF transformers.

For large transformers, temperature rise tests are typically conducted using the short-circuit method, with power sourced directly from the grid or a dedicated generator. Capacitive compensation can be employed during the test, using capacitor banks to offset the reactive current, allowing the power supply capacity to be determined based on the transformer’s active loss. This greatly reduces the required power supply capacity and saves costs.

Numerous non-linear devices in petrochemical plants lead to harmonics and low power factor issues. Reactive power compensation improves power distribution stability and offers economic benefits. Petrochemical production relies on extensive automation and non-linear loads, making harmonic interference unavoidable. Key sources include:Variable frequency drivesSoft startersUPS systemsEnergy-efficient lightingHarmonics increase energy use, compromise electrical safety, and disrupt precision processes. Therefore, harmonic monitoring and mitigation are crucial for stable petrochemical operations.

Mining and metal processing plants require large reactive compensation and harmonic filtering systems to address poor power factor and harmonics from high-power drives, converters, and rectifiers. Key loads like SAG mills, ball mills, and conveyors—often using cycloconverters and solid-state drives—generate variable harmonics and low power factor, stressing the power system. Compliance with grid codes demands reliable multi-tuned filter systems. Given the scale or remote location of many mines, filter system failures can force full plant shutdowns, making reliability critical.

Wind energy is inherently random and intermittent. Large-scale wind farms are usually located in remote areas, often at weak points in the grid. As wind power capacity increases, voltage instability and line losses have become more prominent. Power quality is critical to grid stability, safe operation of equipment, and industrial and agricultural productivity. Among the key factors, reactive power significantly affects power quality. Effective reactive power compensation in wind power systems helps improve grid-connected power quality, reduce losses, and enhance grid stability and security.

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