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A typical motor start capacitor. A motor capacitor [1] [2] is an electrical capacitor that alters the current to one or more windings of a single-phase alternating-current induction motor to create a rotating magnetic field. [citation needed] There are two common types of motor capacitors, start capacitor and run capacitor (including a dual run ...
Capacitors for AC applications are primarily film capacitors, metallized paper capacitors, ceramic capacitors and bipolar electrolytic capacitors. The rated AC load for an AC capacitor is the maximum sinusoidal effective AC current (rms) which may be applied continuously to a capacitor within the specified temperature range.
Electrolytic capacitors are usually used due to high capacity at low cost and low size. Smaller non-electrolytics may be paralleled with these to compensate for electrolytics' poor performance at high frequencies. Computers use large numbers of filter capacitors, making size an important factor. Solid tantalum and wet tantalum capacitors offer ...
The voltage rating does not need to be symmetrical; "semi-polar" capacitors can be made with different thicknesses of oxide coatings, so they can withstand different voltages in each direction, [38] but these bipolar electrolytic capacitors are not adaptable for main AC applications instead of power capacitors with metallized polymer film or ...
The minimum thickness of the dielectric layer, which today (2013) for low voltage capacitors is in the size range of 0.5 micrometers [3] is limited downwards by the grain size of the ceramic powder. The thickness of the dielectric for capacitors with higher voltages is determined by the dielectric strength of the desired capacitor.
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With food prices inflated but Thanksgiving leftovers still sitting in the fridge, what should people do with this food? Food safety experts shared their insights on the issue.
An AC motor is an electric motor driven by an alternating current (AC). The AC motor commonly consists of two basic parts, an outside stator having coils supplied with alternating current to produce a rotating magnetic field , and an inside rotor attached to the output shaft producing a second rotating magnetic field.
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