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Annual Output Value-翻译为中文-例句英语| Reverso Context
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6 FAQs about [Annual output value of vacuum capacitors]
What is a vacuum variable capacitor?
A vacuum variable capacitor is a variable capacitor which uses a high vacuum as the dielectric instead of air or other insulating material. This allows for a higher voltage rating than an air dielectric using a smaller total volume.
What is the voltage rating of a vacuum capacitor?
The vacuum capacitor (shown to comparitive scale) also has a voltage rating of 5 kV peak, but is variable from 10 to 1000 pF (100:1 range). It is 77.5 mm in diameter at its widest point, and is 171 mm long excluding the control shaft.
What is the difference between air and vacuum variable capacitors?
Air and vacuum variable capacitors for comparison: The air capacitor shown is variable from 34 to 864 pF (25:1 capacitance range), and has a plate spacing of 1.6 mm giving a voltage rating of 5 kV peak (3.5 kV RMS). The dimensions of the capacitor frame (excluding protruding studs and mounting brackets) are: 260 × 126 × 135 mm.
How big is a vacuum capacitor?
It is 77.5 mm in diameter at its widest point, and is 171 mm long excluding the control shaft. Notwithstanding its advantages in terms of dimensions and variation range, the vacuum capacitor can be expected to have an ESR considerably smaller than that of the air capacitor, and being more compact has a much smaller inductance.
Why is a vacuum capacitor better than other variable capacitors?
When compared to other variable capacitors, vacuum variables tend to be more precise and more stable. This is due to the vacuum itself. Because of the sealed chamber, the dielectric constant remains the same over a wider range of operating conditions.
Why is VC capacitor a small and high withstand voltage capacitor?
It becomes a small and high withstand voltage capacitor by keeping vacuum insulation. The cur-rent capacity of VCs is therefore, more than 100Arms, and the withstand voltage of VCs is a one-tenth than the atmosphere distance by the vac-uum insulation, so a large current can be supplied in a compact size.