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发明公开
CN109212455A 一种验证供电型电压互感器功率绕组电压稳定性的方法及系统 审中-实审

一种验证供电型电压互感器功率绕组电压稳定性的方法及系统
摘要：
本发明公开了一种验证供电型电压互感器功率绕组电压稳定性的方法，包括：利用调压器和试验变压器向供电型电压互感器施加工频电压；根据预设的调节步长调节功率负荷，分别监测不同功率负荷下的供电型电压互感器的功率绕组电压；分别计算每个功率负荷对应的功率绕组电压与预设电压阈值的相对误差；判断每个功率负荷对应的相对误差是否均小于等于预设误差阈值，若是，则确定所述供电型电压互感器功率绕组的电压稳定性为稳定；反之，确定所述供电型电压互感器功率绕组的电压稳定性为不稳定。本发明能够实现在功率负荷从0至满载的范围内波动时，对供电型电压互感器的功率绕组的电压稳定性能进行测量，为大容量供电互感器现场运行提供了数据支撑。
摘要（英）：

The invention discloses a method for verifying the voltage stability of the power winding of the power supply voltage transformer, comprising the steps of: applying a power frequency voltage to the power supply voltage transformer by using a voltage regulator and a testing transformer; adjusting the power load according to the preset adjustment step, and respectively monitoring the voltage of thepower winding of the power supply voltage transformer under different power loads; respectively calculating the relative error between the voltage of the power winding corresponding to each power loadand the preset voltage threshold; and determining whether the relative error corresponding to each power load is less than or equal to the preset error threshold, and if so, determining that the voltage stability of the power winding of the power supply voltage transformer is stable; otherwise, determining that the voltage stability of the power winding of the power supply voltage transformer isunstable. The method for verifying the voltage stability of the power winding of the power supply voltage transformer can measure the voltage stability of the power winding of the power supply voltagetransformer when the power load fluctuates from 0 to full load, thereby providing the data support for the field operation of the large-capacity power supply transformer.

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