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  2. Motor capacitor - Wikipedia

    en.wikipedia.org/wiki/Motor_capacitor

    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 ...

  3. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    Low cost Robust Reliable Ratings to 1+ MW Standardized types. High starting current ... Single-phase AC, two-phase capacitor-start, capacitor run motor [93] [94]

  4. Induction motor - Wikipedia

    en.wikipedia.org/wiki/Induction_motor

    The capacitor-run designs keep the second winding on when running, improving torque. A resistance start design uses a starter inserted in series with the startup winding, creating reactance. Self-starting polyphase induction motors produce torque even at standstill.

  5. AC motor - Wikipedia

    en.wikipedia.org/wiki/AC_motor

    [19] [20] [21] A capacitor-start, capacitor-run motor has two separate capacitors, one for starting the motor, and another for running it, and has a centrifugal switch to disconnect the starting capacitor, or a back-EMF relay connected in parallel with the auxiliary winding of the motor. This motor provides high starting torque and high efficiency.

  6. HVAC control system - Wikipedia

    en.wikipedia.org/wiki/HVAC_control_system

    HVAC (Heating, Ventilation and Air Conditioning) equipment needs a control system to regulate the operation of a heating and/or air conditioning system. [1] Usually a sensing device is used to compare the actual state (e.g. temperature) with a target state. Then the control system draws a conclusion what action has to be taken (e.g. start the ...

  7. Motor soft starter - Wikipedia

    en.wikipedia.org/wiki/Motor_soft_starter

    A motor soft starter is a device used with AC electrical motors to temporarily reduce the load and torque in the powertrain and electric current surge of the motor during start-up. This reduces the mechanical stress on the motor and shaft, as well as the electrodynamic stresses on the attached power cables and electrical distribution network ...

  8. Air conditioning - Wikipedia

    en.wikipedia.org/wiki/Air_conditioning

    Air conditioning can be achieved using a mechanical 'air conditioner' or by other methods, including passive cooling and ventilative cooling. [2] [3] Air conditioning is a member of a family of systems and techniques that provide heating, ventilation, and air conditioning (HVAC). [4]

  9. Capacitor types - Wikipedia

    en.wikipedia.org/wiki/Capacitor_types

    Some film capacitors of special shapes and styles are used as capacitors for special applications, including RFI/EMI suppression capacitors for connection to the supply mains, also known as safety capacitors, [16] snubber capacitors for very high surge currents, [17] motor run capacitors and AC capacitors for motor-run applications. [18]

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