Over-voltage monitoring sensor for AD electricity system
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- CHONGQING UNIV
- Publication Date
- 2007-02-07
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention belongs to a power system overvoltage signal acquisition device, in particular to an overvoltage signal acquisition device for a 110-500kV AC power system. Background technique
[0002] The impact of overvoltage on the safety of power grid operation has attracted more and more attention. Operation experience shows that most of the various accidents in the power grid are caused by overvoltage in the system, so it is particularly important to monitor the overvoltage signal of the power system. Although a large number of high-voltage dividers are installed as measuring elements in the actual operating system to monitor the voltage waveform, the overvoltage is often steep and short in duration, and the existing measuring devices cannot accurately capture the power due to their own technical limitations. The occurrence process of overvoltage in the system makes it very difficult to accurately analyze and judge the cause of overvoltage. [00...