利索-全球专利检索

  1. 登录
  2. 注册
实用新型
CN205301408U 三相中性点不接地系统的电压采样装置 有权 转让

三相中性点不接地系统的电压采样装置
摘要：
本实用新型涉及三相中性点不接地系统的电压采样装置，包括第一电阻、第二电阻、第三电阻、第一电流电压转换器、第二电流电压转换器和第三电流电压转换器，第一电流电压转换器、第二电流电压转换器和第三电流电压转换器均设有正相输入端、反相输入端和信号输出端；第一电阻、第二电阻和第三电阻一端分别连第一电流电压转换器、第二电流电压转换器、第三电流电压转换器的正相输入端，另一端分别连第一相电压互感器二次侧、第二相电压互感器二次侧、第三相电压互感器二次侧的输出测量端，第一电流电压转换器、第二电流电压转换器和第三电流电压转换器的反相输入端连接构成重构中性点，各信号输出端连接电压检测设备。可提高电压测量准确度。
摘要（英）：

The utility model relates to a three -phase isolated neutral system's voltage sample device, including first resistance, second resistance, third resistance, a current -to -voltage convertor, the 2nd current -to -voltage convertor and the 3rd current -to -voltage convertor, a current -to -voltage convertor, the 2nd current -to -voltage convertor and the 3rd current -to -voltage convertor all are equipped with non -inverting input end, inverting input end and signal output part, first resistance, second resistance and third resistance one end link a current -to -voltage convertor respectively, the 2nd current -to -voltage convertor, the 3rd current -to -voltage convertor's non -inverting input end, the other end links phase 1 enzyme voltage transformer secondary side respectively, phase 2 enzyme voltage transformer secondary side, the output measuring junction of third phase voltage transformer secondary side, a current -to -voltage convertor, component reconsitution neutral point is connected to the 2nd current -to -voltage convertor and the 3rd current -to -voltage convertor's inverting input end, each signal output part connects voltage detecting equipment. The voltage measurement degree of accuracy can improve.

0/0