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  2. Arc flash - Wikipedia

    en.wikipedia.org/wiki/Arc_flash

    An electric arc between two nails. An arc flash is the light and heat produced as part of an arc fault (sometimes referred to as an electrical flashover ), a type of electrical explosion or discharge that results from a connection through air to ground or another voltage phase in an electrical system. Arc flash is distinctly different from the ...

  3. Electric motor - Wikipedia

    en.wikipedia.org/wiki/Electric_motor

    An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and electric current in a wire winding to generate force in the form of torque applied on the motor's shaft. An electric generator is mechanically identical to ...

  4. Operating temperature - Wikipedia

    en.wikipedia.org/wiki/Operating_temperature

    Operating temperature. An operating temperature is the allowable temperature range of the local ambient environment at which an electrical or mechanical device operates. The device will operate effectively within a specified temperature range which varies based on the device function and application context, and ranges from the minimum ...

  5. Thermistor - Wikipedia

    en.wikipedia.org/wiki/Thermistor

    Thermistor. A thermistor is a semiconductor type of resistor whose resistance is strongly dependent on temperature, more so than in standard resistors. The word thermistor is a portmanteau of thermal and resistor . Thermistors are categorized based on their conduction models. Negative-temperature-coefficient (NTC) thermistors have less ...

  6. Servomechanism - Wikipedia

    en.wikipedia.org/wiki/Servomechanism

    electric motor 2. position feedback potentiometer 3. reduction gear 4. actuator arm. A servomotor is a specific type of motor that is combined with a rotary encoder or a potentiometer to form a servomechanism. This assembly may in turn form part of another servomechanism.

  7. Synchronous motor - Wikipedia

    en.wikipedia.org/wiki/Synchronous_motor

    Synchronous motor. Miniature synchronous motor used in analog clocks. The rotor is made of permanent magnet. Small synchronous motor with integral stepdown gear from a microwave oven. A synchronous electric motor is an AC electric motor in which, at steady state, [1] the rotation of the shaft is synchronized with the frequency of the supply ...

  8. Thermostat - Wikipedia

    en.wikipedia.org/wiki/Thermostat

    A thermostat is a regulating device component which senses the temperature of a physical system and performs actions so that the system's temperature is maintained near a desired setpoint . Thermostats are used in any device or system that heats or cools to a setpoint temperature.

  9. Electric machine - Wikipedia

    en.wikipedia.org/wiki/Electric_machine

    Electric machine. In electrical engineering, electric machine is a general term for machines using electromagnetic forces, such as electric motors, electric generators, and others. They are electromechanical energy converters: an electric motor converts electricity to mechanical power while an electric generator converts mechanical power to ...