Electromagnetic starters of general industrial use are switching electrical devices designed to launch, stop and protect three -phase asynchronous electric motors with a short -closed rotor by direct connection of the stator windings and a current break in them.
In practice, electromagnetic starters perform additional functions:
– change the direction of rotation of the engine, changing the connection sequence to the windings of the network phases;
– protect the engine from overloads and overheating, reduce insulation resistance and t.P.
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