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  2. Contactor - Wikipedia

    en.wikipedia.org/wiki/Contactor

    AC contactor for pump application. A contactor is an electrically controlled switch used for switching an electrical power circuit. [1] A contactor is typically controlled by a circuit which has a much lower power level than the switched circuit, such as a 24-volt coil electromagnet controlling a 230-volt motor switch.

  3. Electrical contact - Wikipedia

    en.wikipedia.org/wiki/Electrical_contact

    An electromagnetic relay with a pair of contacts. An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. [1]

  4. List of important publications in physics - Wikipedia

    en.wikipedia.org/wiki/List_of_important...

    Download as PDF; Printable version; ... This is a list of noteworthy publications in physics, ... General audience. List of books on popular physics concepts; Textbooks

  5. List of textbooks in electromagnetism - Wikipedia

    en.wikipedia.org/wiki/List_of_textbooks_in...

    Among the textbooks published after Jackson's book, Julian Schwinger's 1970s lecture notes is a mentionable book first published in 1998 posthumously. Due to the domination of Jackson's textbook in graduate physics education, even physicists like Schwinger became frustrated competing with Jackson and because of this, the publication of ...

  6. Centrifugal extractor - Wikipedia

    en.wikipedia.org/wiki/Centrifugal_extractor

    As described above, the mix & separation configuration is the standard operation for centrifugal contactors used for liquid-liquid extraction processes. The two liquids (typically an aqueous phase (heavy) and an organic phase (light)) enter the annular mixing zone where a liquid-liquid dispersion is formed and extraction occurs as solutes (e.g ...

  7. Relay - Wikipedia

    en.wikipedia.org/wiki/Relay

    When an electric current is passed through the coil it generates a magnetic field that activates the armature, and the consequent movement of the movable contact(s) either makes or breaks (depending upon construction) a connection with a fixed contact. If the set of contacts was closed when the relay was de-energized, then the movement opens ...

  8. Magnetic starter - Wikipedia

    en.wikipedia.org/wiki/Magnetic_starter

    A magnetic starter has a contactor and an overload relay, which will open the control voltage to the starter coil if it detects an overload on a motor. [1] [2] The overload relay opens a set of contacts that are wired in series with the supply to the contactor feeding the motor.

  9. Lecture Notes in Physics - Wikipedia

    en.wikipedia.org/wiki/Lecture_Notes_in_Physics

    Lecture Notes in Physics (LNP) is a book series published by Springer Science+Business Media in the field of physics, including articles related to both research and teaching. It was established in 1969.