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  2. Current limiting - Wikipedia

    en.wikipedia.org/wiki/Current_limiting

    Current limiting is the practice of imposing a limit on the current that may be delivered to a load to protect the circuit generating or transmitting the current from harmful effects due to a short-circuit or overload. The term "current limiting" is also used to define a type of overcurrent protective device.

  3. List of social networking services - Wikipedia

    en.wikipedia.org/wiki/List_of_social_networking...

    A social networking service is an online platform that people use to build social networks or social relationships with other people who share similar personal or career interests, activities, backgrounds or real-life connections. This is a list of notable active social network services, excluding online dating services, that have Wikipedia ...

  4. Issues relating to social networking services - Wikipedia

    en.wikipedia.org/wiki/Issues_relating_to_social...

    There is a growing number of social network users who decide to quit their user account by committing a so-called virtual identity suicide or Web 2.0 suicide. A 2013 study in the journal Cyberpsychology, Behavior, and Social Networking investigated this phenomenon from the perspective of Facebook users. The number one reason for these users was ...

  5. Social networking service - Wikipedia

    en.wikipedia.org/wiki/Social_networking_service

    Illustrations showing various icons of some popular social networking services. A social networking service (SNS), or social networking site, is a type of online social media platform which people use to build social networks or social relationships with other people who share similar personal or career content, interests, activities, backgrounds or real-life connections.

  6. List of social platforms with at least 100 million active ...

    en.wikipedia.org/wiki/List_of_social_platforms...

    This is a list of social platforms with at least 100 million monthly active users. [a] The list includes social networks, as well as online forums, photo and video sharing platforms, messaging and VoIP apps.

  7. Motor controller - Wikipedia

    en.wikipedia.org/wiki/Motor_controller

    A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [1] A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical ...

  8. Motor control center - Wikipedia

    en.wikipedia.org/wiki/Motor_control_center

    A small, early 1960s-vintage motor control center for 480 volt motors. A motor control center ( MCC ) is an assembly to control some or all electric motors in a central location. It consists of multiple enclosed sections having a common power bus and with each section containing a combination starter, which in turn consists of motor starter ...

  9. Utilization categories - Wikipedia

    en.wikipedia.org/wiki/Utilization_categories

    The control of a hermetically sealed refrigeration compressor motor with automatic reset of the overload trips: Intermittent operation 60947-4-2 AC-140 Control of small electromagnetic loads with holding current ≤ 0.2 A; e.g. contactor relays 60947-5-2 A: Protection of circuits, with no rated short-time withstand current: 60947-3 B