摘要
介绍了现有核相仪的工作原理,提出了一种基于电网电压波形记录原理的新型核相仪。该核相仪通过记录一个待核相点的电压波形,并将其动态保留在系统的存储器中,再检测另一个待测点的电压波形,将其与所保留的动态波形进行对比,如果相位差在误差范围内则判定为同相,若相位差较大则判定为非同相。通过分析可知,该核相仪有效提高了核相效率。
The paper presents the operation principle of the nuclear instrument now available. Put forward a new type nuclear instrument based on the record principle of the electric network voltage waveform. The instrument records the voltage waveform of a nuclear point retaining its dynamic state in the system storage. Check the voltage waveform of another control point to be awaited. Compane it with the dynamic stafe waveform. If the phase difference is in the scope of the error,the judge is the same. If the phase difference is higher difference,the judge is not the same. By analyzing,the nuclear-mstrument increases the nuclear instoument efficiency.
出处
《电气开关》
2017年第2期79-81,86,共4页
Electric Switchgear
关键词
波形记录
核相
电力线路
相位检测
waveform record
nuclear instrument
power line
phase check