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ONLINE CHECK METER OF HIGH-VOLTAGE ELECTRIC ENERGY METERING DEVICE

机译:高压电能计量装置在线检查仪

摘要

Disclosed is an online check meter of a high-voltage electric energy metering device, comprising: an acquisition processing unit (1) arranged at a high-voltage side and used for acquiring electricity parameter information on a high-voltage line and converting the electricity parameter information into a digital signal; an electric energy metering unit (2) arranged at a low-voltage side, connected with the acquisition processing unit (1) and used for receiving the digital signal corresponding to the electricity parameter information and calculating the electric energy standard value of the current loop; and a microprocessor (3) arranged at the low-voltage side, connected with the electric energy metering unit (2) and connected with an electric energy pulse signal input interface (4). The microprocessor (3) receives the electric energy pulse signal, measured by the tested high-voltage electric energy metering device, of the current loop via the electric energy pulse signal input interface (4), and the electric energy standard value provided by the electric energy metering unit (2), and calculates the overall error of the tested high-voltage electric energy metering device, so that the overall error of the high-voltage electric energy metering device is checked accurately under the condition that the power supply is uninterrupted.
机译:公开了一种高压电能计量装置的在线检查仪表,其包括:采集处理单元(1),其布置在高压侧,用于采集高压线上的电参数信息并转换电参数。信息转化为数字信号;布置在低压侧的电能计量单元(2),与获取处理单元(1)连接,用于接收与电能参数信息相对应的数字信号,并计算出电流环的电能标准值;微处理器(3),其布置在低压侧,与电能计量单元(2)连接并且与电能脉冲信号输入接口(4)连接。微处理器(3)通过电能脉冲信号输入接口(4)接收电流回路的电能脉冲信号,该电能脉冲信号是由测试过的高压电能计量装置测得的,并且是电能提供的电能标准值。电能计量单元(2),并计算出所测试的高压电能计量装置的总误差,以便在不中断电源的情况下准确地检查高压电能计量装置的总误差。

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