Premier Supplier
Reliable MV/HV CAPACITORS Manufacturer
Premium Capacitors: Engineered for demanding applications including power factor correction (PFC), harmonic filtering, energy transmission systems, drive technology, impulse test solutions, and diverse AC/DC power 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
shunt capacitor
single-phase shunt capacitor
three-phase shunt capacitor
impulse capacitor
impulse capacitor/ High energy
density(HED) pulse capacitor
Filter capacitor
AC Filter capacitor
DC Filter capacitor
Coupling capacitor
HV caps for partial discharge
or AC/DC measurements
protective capacitor
RC Filters consist of protective
capacitors and resistors
overvoltage absorber
Surge Protection Capacitors
Surge Absorbing Capacitors
locomotive capacitor
Snubber, AC harmonic filters,
commutation capacitors, DC link
Capacitor Banks
open rack capacitor banks
enclosed
capacitor banks
Trusted by Our Partners
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.
foil winding
Core pressing
Vacuum impregnation
automatic test station
Robot painting
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 partners Say
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. 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 equipment in petrochemical plants can cause harmonics and low power factor issues. Reactive power compensation not only enhances power distribution stability but also delivers economic benefits.Petrochemical production involves extensive, highly automated processes with significant non-linear loads—inevitably generating harmonic interference. Major harmonic sources include:Variable frequency drives for pumpsSoft startersUPS systemsEnergy-efficient lightingHarmonics increase power consumption, jeopardize electrical safety, and disrupt precision automated production lines. Thus, harmonic monitoring and mitigation are essential for 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 characterized by its randomness and intermittency. Large-scale wind farms are typically located in remote areas, often at weak points in the power grid. As the capacity of wind power integrated into the grid continues to grow, issues such as voltage instability and increased line losses have become increasingly prominent. Power quality plays a critical role in maintaining grid stability, ensuring the safe operation of power equipment, and supporting industrial and agricultural productivity. Among the factors influencing power quality, reactive power is particularly significant. Effective reactive power compensation in wind power systems is essential for improving grid-connected power quality, minimizing transmission losses, and enhancing the overall stability and security of grid operations.
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Latest Projects
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