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发明公开
CN107783016A 变电站投运前多相并联完成GIS耐压试验的测算方法 有权

变电站投运前多相并联完成GIS耐压试验的测算方法
摘要：
本发明公开了一种变电站投运前多相并联完成GIS耐压试验的测算方法，解决了变电站投运前三次重复接线存在的劳动强度大、危险性高的问题。将A相GIS、B相GIS与C相GIS三相并联连接后进行耐压试验的测算，根据三相并联连接后的耐压与频率关系曲线UC–ω，若承受的耐压值为最大耐压值大于或等于GIS出厂规定试验耐压值，并且ω0大于A相GIS、B相GIS和C相GIS所规定的限频频率，则可以将三相并联连接后进行耐压试验；保障了交流耐压试验的顺利进行，节省了试验时间。
摘要（英）：

The invention discloses a measuring and calculating method of GIS high voltage test through multiphase parallel connection before the operation of a transformer station, which resolves the problem that three repetitive wiring causes high labor intensity and high risks before the operation of the transformer station. A-phase GIS, B-phase GIS, and C-phase GIS are connected in parallel, and the measuring and calculating of the high voltage test are conducted. Based on the voltage resistance and frequency relation curve UC-Omega after the parallel connection of three phase GIS, if the borne pressure-resistant value is the maximum voltage resistance value, which is greater than or equal to the test pressure-resistant value of GIS release regulation, and Omega0 is greater than the limited frequency regulated by the A-phase GIS, the B-phase GIS, and the C-phase GIS, the three phase GIS can be connected in parallel and the high voltage test can be conducted. The invention is advantageous in that the AC voltage resistance test can be carried out smoothly, and test time can be saved.

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