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2. Motor capacitor - Wikipedia

   en.wikipedia.org/wiki/Motor_capacitor

   Motor capacitors are used with single-phase electric motors [3]: 11 that are in turn used to drive air conditioners, hot tub/jacuzzi spa pumps, powered gates, large fans or forced-air heat furnaces for example. [1] A "dual run capacitor" is used in some air conditioner compressor units, to boost both the fan and compressor motors. [1] Permanent ...

3. Static VAR compensator - Wikipedia

   en.wikipedia.org/wiki/Static_VAR_compensator

   However, static VAR compensators are more expensive than mechanically switched capacitors, so many system operators use a combination of the two technologies (sometimes in the same installation), using the static VAR compensator to provide support for fast changes and the mechanically switched capacitors to provide steady-state VARs.

4. Inrush current - Wikipedia

   en.wikipedia.org/wiki/Inrush_current

   A discharged or partially charged capacitor appears as a short circuit to the source when the source voltage is higher than the potential of the capacitor. A fully discharged capacitor will take approximately 5 RC time periods to fully charge; during the charging period, instantaneous current can exceed steady-state current by a substantial ...

5. Capacitor types - Wikipedia

   en.wikipedia.org/wiki/Capacitor_types

   Air and vacuum capacitors: Not measurable Class-1 ceramic capacitors, NP0: 0.6% Class-2 ceramic capacitors, X7R: 2.5% Polypropylene film capacitors (PP) 0.05 to 0.1% Polyester film capacitors (PET) 0.2 to 0.5% Polyphenylene sulfide film capacitors (PPS) 0.05 to 0.1% Polyethylene naphthalate film capacitors (PEN) 1.0 to 1.2%

6. Capacitor - Wikipedia

   en.wikipedia.org/wiki/Capacitor

   For air dielectric capacitors the breakdown field strength is of the order 2–5 MV/m (or kV/mm); for mica the breakdown is 100–300 MV/m; for oil, 15–25 MV/m; it can be much less when other materials are used for the dielectric. [37] The dielectric is used in very thin layers and so absolute breakdown voltage of capacitors is limited.

7. Variable capacitor - Wikipedia

   en.wikipedia.org/wiki/Variable_capacitor

   The closely related split stator variable capacitor does not have the limitation of 90° angle since it uses two separate packs of rotor electrodes arranged axially behind one another. Unlike in a capacitor with several sections, the rotor plates in a split stator capacitor are mounted on opposite sides of the rotor axis.