We should all know the role of the relay. As long as a certain voltage is applied across the coil, a certain current will flow in the coil, which will produce an electromagnetic effect. The armature will overcome the tension of the return spring under the action of electromagnetic attraction. To the... read more
To make it easier to understand, we divide the circuit into two parts, a low voltage (small current) circuit and a high voltage (high current) circuit. In the figure, the power supply, the switch S1, and the coil are low voltage circuit parts; the contacts, the load power supply, and the consumer ar... read more
In industrial control lines and current home appliance control lines, there are often intermediate relays. For different control lines, the role of three-phase relays is different. The functions of the intermediate relays are common in the following ways: 1. Replace the small contactor The contacts ... read more
1. Introduction to magnetic latching relays The magnetic latching relays is also a kind of relay, but it has more stable performance than other relays, and has a smaller volume and a stronger carrying capacity. The magnetic latching relays is essentially an automatic switch that can automatically tu... read more
1. First understand the necessary conditions a. control circuit power supply voltage, the maximum current that can be provided; b. voltage and current in the circuit being controlled; c. The controlled circuit needs several sets and what forms of contacts. When a relay is selected, the power supply ... read more
