When the motor is working normally, if the motor stops due to the disappearance of the power supply voltage, the motor may start automatically when the power supply voltage is restored. The self-starting of the motor may cause personal or equipment accidents. For the power grid, the self-starting of... read more
The programmable controller is developed from the relay control system. Due to the application of microprocessor and electronic technology, PLC has the following characteristics: 1.High reliability PLC adopts many anti-interference measures, such as electromagnetic shielding of CPU module, setting... read more
Because there are many types of low-voltage electrical appliances, their functions are diverse, they are widely used, and their working principles are different, so there are different classification methods. According to its relationship with the use of the system, it can be divided into the follow... read more
Classification according to the overall dimensions of the relay: 1. Miniature relay: a relay with the longest side size not greater than 10 mm. 2. Subminiature miniature relays: Relays with the longest side larger than 10 mm but not larger than 25 mm. 3. Miniature miniature relay: The relay with the... read more
In the process of using the solid-state relay, it is still good to check all aspects. After a period of heating, when I check it again, I find that the solid-state relay is broken. What is the reason for this? It is mainly the effect of temperature. What are the effects of temperature on the use of ... read more
