It is said that when choosing a good power supply lightning arrester device, the parameter reference of voltage and residual voltage is very important. So what impact do the voltage and residual voltage parameters have on the power supply lightning arrester? Will it directly affect the cost performance of the power supply lightning protector? This is a highly professional question, so let’s listen to the opinions of the arrester manufacturers.
1. Selection of the maximum continuous working voltage: The maximum continuous working voltage value of the lightning arrester is a key parameter related to the operational stability of the lightning arrester. When selecting the maximum continuous operating voltage of a lightning arrester, in addition to complying with relevant standard requirements, possible normal fluctuations in the power grid and possible high continuous fault voltages should also be taken into consideration.
2. Selection of residual voltage: Simply considering the lower the residual voltage of the lightning arrester, the better, is not comprehensive and can easily lead to misleading. For varistor lightning arresters, the lower the residual voltage, usually means that its maximum continuous operating voltage is reduced. Therefore, overemphasis on residual voltage requires paying the price of reducing the maximum continuous operating voltage. The consequence may be that in areas with unstable mains power, the lightning arrester may be damaged due to sustained overvoltage for a long time.
3. Selection of alarm function In order to monitor the operating status of the lightning arrester, when the lightning arrester is damaged, the user should know immediately and replace the damaged lightning protection module in time. In order to achieve real-time monitoring in different application environments, it is necessary to choose lightning arresters with sound and light alarm devices or remote signaling alarm devices.
