Oil-Filled AC Filter Capacitors
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  • Oil-Filled AC Filter Capacitors
  • Oil-Filled AC Filter Capacitors
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◆ Product Advantages
• Oil-Impregnated Insulation Technology with Strong High-Voltage Impulse Resistance: Utilizing high-insulation impregnating oil as an auxiliary dielectric, significantly enhancing the capacitor's ability to withstand peak voltages and high dv/dt, suitable for AC filter applications subject to high-voltage pulses
• High Ripple Current Handling Capability: Oil-immersed heat dissipation structure provides superior thermal stability under high ripple current conditions, enabling continuous long-term operation under larger RMS AC currents without overheating
• Mechanical Safety Anti-Explosion Design: Built-in mechanical safety pressure relief valve activates upon abnormal internal pressure

◆ Key Selling Points
• Customized for High-Power UPS and Power Electronics: Tailored for AC filtering needs of industrial UPS, large motor drives, and power conversion equipment, with reliability verified by extensive practical applications
• Excellent High-Frequency AC Performance: Low equivalent series inductance (ESL) design ensures good filtering performance from power frequency to high-frequency range
• Support for Multiple Mounting Methods: Supports bolt mounting and various terminal configurations to meet different power cabinet installation requirements
• Passed Strict Quality Testing: Complies with international standards such as IEC 61071

◆ Primary Applications
• AC filtering for large industrial UPS uninterruptible power supplies
• AC-side filtering for industrial frequency converters and motor soft starters
• High-power power electronic conversion equipment (SVG, SVC)
• Power filtering for medical imaging equipment (MRI, CT)
• AC filtering for rail transit traction inverter systems

Reference Standard GB/T 17702 IEC 61071
Climatic Category 40/70/21, 40/85/21
Operating Temperature -40~85℃
Storage Temperature -40~85℃
Rated Voltage 350Vac 460Vac 700Vac
Rated RMS Voltage 250Vac 330Vac 500Vac
Rated frequency 50/60Hz
Capacitance Tolerance ±5%;±10%
Test Voltage Between T-T 1.5Un (10s, 20±5℃)
Test Voltage Between T-C 3000Vac (10s, 20±5℃)
Life Expectancy After 60000 hours at Urms, 50℃, △C/C≤5%
Mounting position Terminals upright
Max.Altitude 2000m
Max.Torque of terminals 8Nm
Bottom bolt size M8×10(D≤50) M10×12(D=55) M12×16(D≥60)
Max.Torque of installation 5Nm 7Nm 10Nm

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About Us
Anhui Juan Kuang Electric Co., Ltd.

Anhui Juan Kuang Electric Co., Ltd. Against the backdrop of the rapid development of the electronic information and new‑energy industries, film capacitors serve as core basic components. Their performance directly determines the reliability and energy‑efficiency level of downstream end‑products. In this sector, Anhui JuanKuang Electric Co., Ltd. has built up expertise over more than 30 years. Through professionalism and innovation, it has established itself as a capable player in the film‑capacitor industry.

Established in 1995, Anhui JuanKuang Electric Co., Ltd. specializes in the R&D and manufacturing of a full range of film capacitors. For over 30 years, the company has stayed focused on its core business. It avoids blind expansion and rejects careless production. Embracing the philosophy of “manufacturing quality capacitors with craftsmanship” across every production process, it has become a model of steady growth within the industry.

Certificate Of Honor
  • TUV-CBB65
  • UL
  • UL-For-Compressor
  • VDE
  • VDE
  • Anhui Yuanguang Electric Appliance‑Environmental Management System Certificate
  • GB/T 4787.1‑2021 – Voltage‑Sharing Capacitors for High‑Voltage Alternating‑Current Circuit‑Breakers
  • GB/T 17702‑2021‑Power Electronic Capacitors
  • GB/T 28543‑2021‑Noise Measurement Method on Power Capacitors
  • GB/T 11026.8‑2025‑Electrical insulating materials—Thermal endurance properties—Part 8: Determination of thermal endurance indices (TI and RTI) of an insulating material using the fixed time frame method
  • NB/T 10451‑2020‑Insulating liquids‑Unused polyisobutene
  • NB/T 10452‑2020‑Insulating liquids‑Epoxidized soybean oil for metallized film capacitors
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