Hello, the relay is a safety switch it, in the current load to eat a large load or what circumstances will trip, it has a safety switch in the middle, you can press the hope can help you
A relay is an electronic control device that has a control system and a controlled system, usually used in an automatic control circuit, which is actually an "automatic switch" that uses a smaller current to control a larger current. So in the circuit plays an automatic adjustment, security protection, conversion circuit and so on.
I'll talk to you. The relay is indeed a device in the control circuit. It is indeed through a small current to control the larger current. But this explanation for you is equal to no explanation. (Points so high, I give you a clear point. Remember to give me the best oh) In fact, the relay points are many kinds. I am here with time relay to show you. For example, we often see in the factory press machine. Inside the circuit to use the time relay. When the switch is connected to the power supply, the relay closed and (relay inside the main structure is the copper package of this iron.Using electromagnetic induction principle after the iron will have magnetic magnetic adsorption will be the other side of the iron, when the relay is connected ). I have just said that the relay one end of the power supply, the other end of the load (such as lights, motor). After the power to start working. And the time relay it will automatically disconnect after a certain period of time. (This relay will be identified). After the break to stop working. Want to press the press down to the time will stop pressing the same automatic bounce up. And the relay can be connected to several loads at the same time, for example, then connect the motor and indicator light, that is to say the motor and the lights at the same time by the relay control. When the motor is working, the indicator light turns on and stops when it stops working. Like the press machine in the press when the light on the light, stop the pressure together. The lights are gone. (There are questions can be added, give me. Thank you!
A relay is an electronic control device that is usually used in an automatic control circuit and is actually an "automatic switch" that uses a smaller current to control a larger current. So in the circuit plays an automatic adjustment, security protection, conversion circuit and so on.
