What impact do voltage and residual voltage parameters have on high-voltage arresters?
High voltage arrester
It is said that when choosing a good high-voltage arrester equipment, reference parameters of voltage and residual voltage are very important. So what impact do voltage and residual voltage parameters have on high-voltage arresters? Will it directly affect the cost-effectiveness of high-voltage arresters? This is a highly professional question, so let’s listen to the opinions of professionals from Kaili Feng, a professional high-voltage surge arrester research and development expert.
1. Selection of the maximum continuous operating voltage: The maximum continuous operating voltage value of the arrester is a key parameter related to the operating stability of the arrester. When selecting the maximum continuous operating voltage of the arrester, in addition to complying with relevant standard requirements, possible normal fluctuations in the power grid and the possible maximum continuous fault voltage should also be considered.
Metal oxide arrester
2. Selection of residual voltage: Simply considering the lower the arrester residual voltage, the better, is not comprehensive and can easily lead to misleading. For varistor arresters, the lower the residual voltage, usually means that the maximum continuous operating voltage is reduced. Therefore, overemphasis on residual voltage requires paying the price of reducing the maximum continuous operating voltage. The consequences may be that in areas with unstable mains power supply, the arrester will be damaged.Damaged due to prolonged exposure to sustained overvoltage.
3. Selection of alarm function In order to monitor the operating status of the arrester, when the arrester is damaged, the user should know immediately and replace the damaged lightning arrester module in time. In order to achieve real-time monitoring in different application environments, it is necessary to choose high-voltage arresters with sound and light alarm devices or remote signaling alarm devices.
Lightning arrester manufacturer
