Introduction of Relay
A relay is an electrical control device. It has a control system (also known as input loop) and a quilt
The interaction between control systems (also known as output loops). Usually applied to the control of automation
In the system circuit, it is actually a small current to control the operation of a large current of an "automatic switch".
Therefore, it plays the role of automatic regulation, safety protection and conversion circuit in the circuit.
Its working principle is to use the interaction between the control system of the relay and the controlled system.
When the input reaches the specified value, the relay makes the controlled output circuit on or off, in order to
This achieves the function of control. The input here can be divided into electrical volume (e.g. current, voltage, frequency)
Rate, power, etc.) and non-electric gas (such as temperature, pressure, speed, etc.) two categories.
