| 过电压起因 |
| 添加时间：2018/7/24 17:06:59 浏览次数： |
| 过电压起因 Overvoltage cause 电力系统中电路状态和电磁状态的突然变化是产生过电压的根本原因。过电压分为外过电压和内过电压两大类。研究电力系统中各种过电压的起因，预测其幅值，并采取措施加以限制，是确定电力系统绝缘配合的前提，对于电工设备制造和电力系统运行都具有重要意义。 The sudden change of circuit state and electromagnetic state is the fundamental cause of overvoltage in power system. Overvoltage is divided into two categories: external overvoltage and internal overvoltage. It is very important to study the causes of various overvoltages in the power system, predict its amplitude, and take measures to limit it. It is the premise to determine the insulation and coordination of the power system, and is of great significance for the manufacture of electrical equipment and the operation of the power system. 无论外过电压还是内过电压，都受许多随机因素的影响，需要结合电力系统具体条件，通过计算、模拟以及现场实测等多种途径取得数据，用概率统计方法进行过电压预测。 Both overvoltage and internal overvoltage are affected by many random factors. It is necessary to obtain data through a variety of ways, such as calculation, simulation and field measurement, with the specific conditions of the power system, and the overvoltage prediction is carried out by probability and statistics. 针对过电压的起因，电力系统必须采取防护措施以限制过电压幅值。如安装避雷线、避雷器、电抗器，开关触头加并联电阻等，以合理实施绝缘配合，确保电力系统安全运行。 In view of the cause of overvoltage, power system must take protective measures to limit the amplitude of overvoltage. Such as installing lightning conductor, lightning arrester, reactor, switch contact and parallel resistance, etc., so as to reasonably implement insulation coordination to ensure the safe operation of power system. |
| 上一页 线路过电压保护器使用环境 |
| 下一页 线路过电压保护器区别 |
Copyright © 技术支持：遨游网络