The role of the car relay, the role of the relay, the relay function is to use the switch to control the relay coil, then the relay working contact is closed or open, the contact is connected to the main line current, and the other end is connected to the electrical appliance to be controlled to ach... read more
1. Signal relay The signal relay is a commonly used device in the automatic control system. It is generally used to turn the circuit on and off. It releases the control command and reflects the status of the device by dropping the card. After the device returns to normal, the signal is released by t... read more
Electromagnetic relays are a common type of electrical equipment in industrial circuits. Many people who choose electromagnetic relays do not understand very well. There are many questions about how to choose good electromagnetic relays. How to choose electromagnetic relays? 1. Select the rated work... read more
Measuring contact resistance Use the resistance file of the universal meter to measure the normally closed contact and the dynamic point resistance, the resistance value should be 0, (the contact resistance value can be measured within 100 milliohms in a more precise way); and the normally open cont... read more
The comparison between traditional relays and solid state relays, due to the variety of types involved, the following comparison of electromagnetic relays with the corresponding solid state relays to illustrate their differences: 1. Structural difference: The electromagnetic relay works by the... read more
