| 降低工频过电压的措施 |
| 添加时间：2017/5/15 17:30:25 浏览次数： |
| 降低工频过电压的措施： Measures to reduce the overvoltage of workers: 1）单机带长线，特别是单机容量相对较小时是造成工频过电压过高的最不利电网条件。一般工程中遇到这种情况会重点校核，并尽量避免这种情况。 1) single machine band long line, especially when single machine capacity is relatively hour is the most unfavorable grid condition that causes overvoltage. This is the case in general engineering, and it is the case that you are trying to avoid. 2）经常保持发电机自动电压调节器投入运行，特别是采用快速励磁。 2) keep generator automatic voltage regulator in operation, especially with quick excitation. 3）采用单相重合闸并确保继电保护及其选相性能的正确性（这块细化分析故障的话就比较费篇幅，就不展开） 3) use single-phase reswitching to ensure the correctness of relay protection and the performance of the selected phase (the detailed analysis failure is more than the length of time) 4）装设高抗 4) install high resistance 5）采用良导体线(铝合金线、钢芯铝线、铝包钢线)作为架空地线，与钢铰线比，线路零序阻抗减少，从而可以降低工频过电压3%-8%。 5) USES the good conductor wire (aluminum alloy wire, acsr, aluminum clad steel wire) as the earth wire, and the steel hinge line, line zero sequence impedance is reduced, which can reduce the power frequency overvoltage between 3% and 8%. |
| 上一页 3KW家用光伏设计案例 |
| 下一页 过电压的介绍 |
Copyright © 技术支持：遨游网络