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Capacitor Oil
Electrical insulating oil

Capacitor Oil

No. 1 No. 2 Electrical Insulation High Voltage Low Loss

Features high resistivity and low dielectric loss, providing stable electrical insulation performance, suitable for capacitor systems in power and telecommunications equipment.

High Resistivity Excellent Electrical Insulation Properties
Low dielectric loss Reduces energy loss
Stable electrical performance Long-Term Reliable Operation
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Product Description

Product Performance: High volume resistivity, low dielectric loss, good insulation and electrical properties. Application: Mainly used in the power or telecommunications industry, injected into paper capacitors and AC devices with strong current and high-voltage electrical equipment to improve power factor. Grade 1 is used for high and low voltage phase-shifting capacitors that improve power factor in power transmission and transformation systems, as well as medium-frequency electric heaters, DC pulse capacitors, and other power capacitors; Grade 2 is used for paper capacitors in the wire industry. Grade 1 and Grade 2 oils are not interchangeable or mixable.

  • High volume resistivity and excellent electrical insulation performance
  • Low dielectric loss and low dissipation characteristics
  • Stable and reliable insulation and electrical performance
  • Specially designed for power and telecom industry capacitors
Engine oil filling scene image

Product Parameters

GB4624-88
Item Grade   No.1 No.2 Test Method
Density (20°C), kg/m³, not more than 900 900 GB/T1884
Kinematic Viscosity (20°C), mm²/s, not more than 40 37~45 GB/T265
(40°C), not more than 15.2 12.4~17.0
Pour Point, °C, not higher than -40 -40 GB/T3535
Flash Point (Closed Cup), °C, not lower than 135 135 GB/T267
Acid Value, mgKOH/g, not more than 0.02 0.02 GB/T264
Water-Soluble Acids or Alkalis None None GB/T259
Dielectric Strength (20°C, 50Hz), KV/cm, not less than 200
Dielectric Constant (20°C)

100Hz

50Hz		 2.1~2.3 GB/T5654
2.1~2.3