SF6 Standard Capacitor
These capacitors use SF6 as the insulating medium, feature an epoxy resin outer casing, and have stainless steel internal electrodes. They offer high precision, high stability, and high voltage withstand capability. They are suitable for high-voltage measurement, calibration, and use as laboratory standards.
Functions and characteristics
1. High accuracy: High capacitance accuracy (±3%), meeting the requirements of laboratory and high-voltage measurements.
2. High stability: Low temperature coefficient (≤10 ppm/℃), with capacitance decreasing over a wide temperature range.
3. High voltage withstand capability: Rated voltage of 500 kV, voltage withstand level of 600 kV, and excellent insulation performance.
4. Low dielectric loss: Dielectric loss ≤ 0.00002; the dielectric loss is low.
5. Low partial discharge: Partial discharge level ≤ 5 pC, ensuring safety and reliability at high voltages.
6. Environmentally Friendly Design: SF₆ gas offers excellent sealing performance and a low leakage rate, and the housing material is recyclable.
7. High mechanical strength: The epoxy drum shell is corrosion-resistant and impact-resistant, making it suitable for complex environments.
Application Areas
High-voltage measurement: Used for calibrating 500 kV high-voltage transformers and voltage dividers.
Laboratory standards: High-precision capacitance standards used in scientific research and metrology.
Power Equipment Testing: Used for insulation testing and performance evaluation of high-voltage equipment.