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Relay What It Means
Dec 06, 2016

Is an electrical control devices, is when the input (excitation) meet the requirements, in the electrical circuit was scheduled step change in control of an appliance.
It has a control system (also known as the input circuit) and the control system (also known as output circuit) between interactions. Often used in automatic control circuits, it is actually a small current to control the current operation "auto switch". It played in the circuit automatically adjusts, security protection, conversion circuits, and so on.
Relay is a quarantine function of automatic switching elements, are widely used in remote control, telemetry, communications, automation, Mechatronics and electrical and electronic equipment, is one of the most important control elements.
Following electrical General are has can reflect must entered variable (as current, and voltage, and power, and impedance, and frequency, and temperature, and pressure, and speed, and light,) of induction institutions (entered part); has can on was control circuit achieved "pass", and "broken" control of implementation institutions (output part); in following electrical of entered part and output part Zhijian, also has on entered volume for coupled isolation, function processing and on output part for drive of middle institutions (drive part).