Jul. 28, 2021
With the rapid development of network information, the previous method of on-site electricity checking and charging has been gradually replaced by the way of checking electricity consumption information on the Internet and bank payment, so long-term data storage and display is indispensable.
Jul. 26, 2021
Varistor is a resistance device with nonlinear volt-ampere characteristics. It is mainly used for voltage clamping when the circuit is subjected to overvoltage and absorbs excess current to protect sensitive devices. In daily use, we must understand clearly the voltage and leakage current of the varistor.