WO2018053725A1 - 一种电能表抗扰度测试装置 - Google Patents

一种电能表抗扰度测试装置 Download PDF

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Publication number
WO2018053725A1
WO2018053725A1 PCT/CN2016/099616 CN2016099616W WO2018053725A1 WO 2018053725 A1 WO2018053725 A1 WO 2018053725A1 CN 2016099616 W CN2016099616 W CN 2016099616W WO 2018053725 A1 WO2018053725 A1 WO 2018053725A1
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WO
WIPO (PCT)
Prior art keywords
terminal
electric energy
energy meter
voltage
current
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PCT/CN2016/099616
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English (en)
French (fr)
Inventor
李向锋
张平
龙代文
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深圳市思达仪表有限公司
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Application filed by 深圳市思达仪表有限公司 filed Critical 深圳市思达仪表有限公司
Priority to PCT/CN2016/099616 priority Critical patent/WO2018053725A1/zh
Publication of WO2018053725A1 publication Critical patent/WO2018053725A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
    • G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current

Definitions

  • the present invention relates to an electric energy meter testing device, and in particular to an electric energy meter immunity testing device.
  • the test field strength is 10V/m
  • the voltage and current of the tested electric energy meter are provided by the electric energy meter detecting device, and the electric energy meter error value is recorded to judge whether the change of the error is within the limit specified by the corresponding standard.
  • the length of the cable to be tested in the electromagnetic field is 1M.
  • the length of the cable is too long and the connection line of the equipment is complicated, which makes the line condition difficult to distinguish, affecting the line.
  • Fast and accurate connection, and the connection line is too long will be affected by high frequency interference, which will affect the test results.
  • the dark room for high frequency electromagnetic interference test is expensive, the test equipment is expensive, so the test cost is high, so the equipment connection line is complicated. Not only does it add unnecessary testing time, but it also costs more testing.
  • the present invention provides a power metering that makes the connection between devices under test more convenient, faster, more reliable, and minimizes the length of the connection line to reduce high frequency interference. Disturbance test device.
  • An electric energy meter immunity test apparatus includes a bracket base, a tailstock and a backboard, wherein the backboard is fixed on the bracket seat, and the tailstock is fixed on the backboard;
  • the backplane is provided with a current connection terminal, a pulse terminal and a voltage connection terminal;
  • the voltage connection terminal comprises a voltage fire line L connection terminal and a voltage zero line ⁇ connection terminal, and the pulse terminal comprises a pulse output positive terminal a sub-pulse output negative terminal,
  • the current connection terminal includes a current positive terminal and a current negative terminal; the current terminal, the pulse terminal and the voltage terminal are respectively electrically connected to the electric energy meter detecting device;
  • the tailstock is provided with a binding post, including one or more positive terminal, a negative terminal and a voltage terminal;
  • the positive electrode terminal and the negative electrode terminal are connected in series, the positive terminal of the first end is connected to the current positive terminal, and the negative terminal of the tail is connected to the current negative terminal;
  • the voltage terminals are connected in parallel, the voltage line L terminal is electrically connected to the positive terminal of the first end, and the voltage terminals are electrically connected to the voltage neutral N terminal.
  • tailstock is two or more.
  • the positive terminal is correspondingly marked with "+”
  • the negative terminal is correspondingly marked with "-”
  • the voltage binding column is marked with "Un”.
  • the current connection terminal is disposed at a right end of the back plate, the current connection terminal at the upper portion is a current positive terminal, and the lower portion is a current negative terminal.
  • the live line L terminal is disposed on the left side of the neutral line N terminal.
  • the pulse output terminals are arranged horizontally, the left side of the pulse output terminal is a pulse output positive pole, and the right side is a pulse input negative pole.
  • the beneficial technical effects of the present invention are: distinguishing from the prior art electric energy meter in the 10V/m high frequency electromagnetic field testing process, the connection between the measured electric energy meter and the electric energy meter detecting device is too long.
  • the length of the cable and the connection between the ports are not clearly marked. It takes a long time to distinguish between the line and the wiring port. The process is very complicated and the line condition is difficult to distinguish, which affects the fast and accurate connection of the line, thus generating unnecessary tests.
  • the present invention provides an electric energy meter immunity test device, which includes a back plate fixed to a bracket base, and is installed, and the connection line is too long to be subjected to high frequency interference and affects test results and the like.
  • connection time between the test sites can be significantly reduced and the reliability of the connection can be ensured. Since the high-frequency magnetic field test is expensive, the connection between the measured electric energy meter and the verification device by the invention is saved by directly connecting the lines through the flexible line. Nearly 2 times the operation time, so using the device of the invention for testing not only saves a lot of test costs, but also saves unnecessary test time;
  • installing the electric energy meter to be tested on the invention device ensures that the device under test is stably and reliably placed in the test process, and is not easy to slip;
  • the device under test is connected to the calibration device by the device, and since the internal current lines between the devices are connected in series, even if multiple electric energy meters are detected at the same time, only one connection is needed.
  • the voltage fire line L provides the working voltage of a plurality of measured electric energy meters, and only needs to set one current output terminal and current input terminal, instead of dividing the voltage hot wire terminal and the current terminal terminal for each electric energy meter to be tested, reducing the electric energy meter to be tested.
  • the connection between the device and the calibration device can greatly shorten the bow I line between the device under test and the inspection device, which can avoid the problem of high frequency interference caused by the long bow I line.
  • the device can realize clear, accurate and fast connection between the measured electric energy meter and the electric energy meter verification device, and can minimize the length of the connecting line, thereby reducing the high frequency interference, and then saving. Unnecessary test costs.
  • FIG. 1 is a schematic structural view of an electric energy meter immunity test apparatus according to the present invention.
  • FIG. 2 is a circuit schematic diagram of an electric energy meter immunity test apparatus of the present invention.
  • bracket base -1 bracket base -1; tailstock -2; backplane -3; current terminal -4; pulse terminal -5; voltage terminal -6;
  • Terminal -7 positive terminal -8; negative terminal -9; voltage terminal -10.
  • FIG. 1 an apparatus for testing the immunity of an electric energy meter, comprising a bracket base 1 , a tailstock 2 , a back plate 3 , a current connection terminal 4 , a pulse terminal 5 , a voltage connection terminal 6 , and a binding post 7. Positive terminal block 8, Negative terminal 9 and voltage terminal 10.
  • the back plate 3 is fixed on the bracket seat 1, and the tail plate 3 is fixed with a tailstock 2, and the backboard 3 is provided with a current terminal 4, a pulse terminal 5 and a voltage terminal 6; the voltage terminal 6 includes a voltage line L terminal. And voltage zero line N terminal, pulse terminal 5 includes pulse output positive terminal and pulse output negative terminal, current terminal 4 includes current positive terminal and current negative terminal; during use, current terminal 4, pulse
  • the terminal 5 and the voltage terminal 6 are respectively electrically connected to the electric energy meter detecting device;
  • the tailstock 2 is provided with horizontally arranged terminals 7 , and the binding post 7 includes one or more positive terminal 8 , a negative terminal 9 and a voltage connection
  • the column 10 is marked with "+", “one", “Un” and "empty” respectively, and the tailstock 2 is used for installing the electric energy meter to be tested, so that the electric energy meter to be tested can be stably and reliably placed neatly, and is not easy to slip.
  • the terminal 7 on the tailstock 2 is used to correspond to the current incoming line, the current outgoing line and the live line voltage of the measured electric energy meter on the tailstock 2, and the terminal "empty" is vented;
  • the tailstock 2 can be two or Two
  • the back board 3 is provided with a voltage connection terminal 6, a pulse terminal 5 and a current connection terminal 4.
  • the voltage connection terminal 6 includes a voltage live line L terminal and a voltage neutral line N terminal
  • the current connection terminal 4 includes a current positive terminal and a current negative terminal.
  • the terminal block, the pulse terminal 5 includes a pulse output positive terminal and a pulse output negative terminal.
  • the voltage zero line N terminal is used to respectively connect the No. 2 table of the electric energy meter calibration device and the zero line N of the No. 3 table; the back plate 3 is provided with a voltage hot wire L terminal, preferably the voltage hot wire L terminal is set.
  • the voltage live line L terminal is used to connect the voltage output fire line of the electric energy meter calibration device to provide the No. 1 electric energy meter and the No. 2 electric energy meter.
  • the pulse input of the No. 1 epitope, the No. 2 epitope and the No. 3 epitope of the electric energy meter calibration device is connected to the positive pole and the negative pole, and the electric energy pulse signal output by the electric energy meter for verification passes through the corresponding pulse output positive terminal.
  • the power pulse signal input terminal corresponding to the energy meter verification device is transmitted to the calibration device to determine the output power of the measured energy meter, and the measurement accuracy of the measured energy meter is calculated.
  • Current terminal 4 The current connection terminal 4 is provided at the right end of the backboard 3, and the current terminal 4 is connected to the corresponding current terminal 4 by the current line of the first tailstock, the second tailstock and the third tailstock, and the current terminal 4 located above a positive terminal, the positive terminal is connected in series with the voltage hot line L, and is used for connecting the current output and voltage output of the electric energy meter calibration device, providing input current and input voltage of the electric energy meter under test, and current wiring under the electric energy meter Terminal 4 is the current output negative terminal.
  • the current from the energy meter test device flows through the measured energy meter and flows out from the negative terminal of the current terminal, and returns to the calibration device as the calibration current of the energy meter.
  • the tailstock 2 disposed on the backboard 3 is not limited to one, and may be multiple, so as to facilitate detection of high-frequency electromagnetic field immunity of 10V/meter of multiple electric energy meters according to needs; Located below the tailstock 2, it facilitates the connection between the meter being tested and the calibration device.
  • FIG. 2 a circuit schematic diagram of an electric energy meter immunity test apparatus according to the present invention
  • the circuit diagram shown in FIG. 2 is formed, and the positive current output positive electrode on the electric energy meter inspection device is connected to the current positive terminal of the back plate 3 through a connection, and the current positive terminal block is connected.
  • the positive terminal 8 on the tailstock is connected, and the positive terminal 8 and the negative terminal 9 on the tailstock 2 are connected in series.
  • the positive terminal 8 on the first end of the first tailstock is connected in series with the current positive terminal.
  • the negative terminal on the first tailstock is connected in series with the positive terminal on the second tailstock, and the positive terminal and the negative terminal string on the second tailstock
  • the negative terminal on the third tailstock that is, the negative terminal of the tail end and the current negative terminal block, and / the negative terminal are connected to the negative pole of the current output on the electric energy meter test equipment to form a test current loop.
  • the voltage output fire line on the electric energy meter verification device is connected to the voltage hot line L terminal on the back board 3 through the connection, the voltage line L terminal is electrically connected with the positive terminal 8 of the head end, that is, with the first tailstock.
  • the positive terminal 8 is connected in series, and the voltage terminal 10 on the first tailstock, the voltage terminal 10 on the second tailstock and the voltage terminal 10 on the third tailstock are connected in parallel, and the voltage terminal 10 is respectively It is electrically connected to the voltage neutral N terminal of the voltage terminal 6, and provides an operating voltage for the electric energy meter to be tested.
  • the pulse output positive terminal and the pulse output negative electrode of the pulse terminal 5 are respectively Pulse input positive and pulse input negative of electric energy meter test equipment
  • the series is connected to form a test pulse circuit.
  • the device of the present invention and the electric energy meter to be tested are placed in a dark room of a high-frequency electromagnetic field of 10 V/m, preferably three on the back plate 3.
  • Tailstock 2 three test electric energy meters are installed on the three electric energy meter connection tailstocks 2 of the device of the invention, and are connected with the electric energy meter calibration device of the dark outdoor through the connection terminal and the binding post 7, and the electric energy meter is at 10V.
  • the specific line connection method is as follows: The No. 1 measured electric energy meter, the No. 2 measured electric energy meter and the No.
  • the electric energy meter calibration device provides, and connects the output voltage of the electric energy meter verification device to the voltage fire line L terminal, the electric energy meter No. 1 , the electric energy meter No. 2 and the voltage line inside the electric energy meter No. 3
  • the No. 2 measured electric energy meter and the No. 3 measured electric energy meter share the voltage of the No. 1 measured electric energy meter, and uniformly provide the working voltage of the electric energy meter to be tested.
  • the electric energy pulse signal output by the measured electric energy meter for verification is connected to the positive and negative terminals of the pulse input of the electric energy meter calibration device through the connection line of the pulse output positive and negative terminals, and constitutes a pulse test circuit, the electric energy meter After receiving the calibration device, the power of the measured energy meter is judged by the pulse signal of the measured electric energy meter, and then the measurement accuracy of the measured electric energy meter is obtained.
  • the current positive pole and the current negative pole on the electric energy meter calibration device are connected to the current positive pole and the current negative terminal connected to the right end of the back panel 3, because the current lines on the tailstock 2 of the three electric energy meter are Connected in series, the positive current from the electric energy meter calibration device flows through the current positive terminal to the No. 1 measured electric energy meter, No. 2 measured electric energy meter and No. 3 measured electric energy meter, and then flows back to the electric energy meter through the current negative terminal block. Verify the device and verify the current as an energy meter. The voltage, current and pulse data of the measured electric energy meter received on the device can be verified by the electric energy meter to obtain the immunity of the measured electric energy meter in the high frequency electromagnetic field of 10V/m.
  • the device is connected to the electric energy meter and the electric energy meter verification device, so that the line between the electric energy meter to be tested and the electric energy meter calibration device can be clearly and accurately connected, and the length of the connection line can be minimized. , to reduce high frequency interference, and save unnecessary test costs

Abstract

一种电能表抗扰度测试装置，包括支架座（1）、尾座（2）和背板（3），背板（3）固定在支架座（1）上，尾座（2）固定在背板（3）上，背板（3）上设有电流接线端子（4）、脉冲端子（5）和电压接线端子（6）；电流接线端子（4）、脉冲端子（5）和电压接线端子（6）分别与电能表检测设备电连接，尾座（2）上设有接线柱（7），包括一个或一个以上的正极接线柱（8）、负极接线柱（9）和电压接线柱（10），正极接线柱（8）和负极接线柱（9）之间串联，首端的正极接线柱（8）与电流正极接线端子相连，尾端的负极接线柱（9）与电流负极接线端子相连；电压接线柱（10）之间并联，电压火线L接线端子与首端的正极接线柱（8）电连接，电压接线柱（10）分别与电压零线N接线端子电连接。该测试装置使高频电磁场抗扰度测试中设备之间的连线更加快捷，最大限度减少连接线长度以降低高频干扰。

Description

一种电能表抗扰度测试装置
[0001] 技术领域
[0002] 本发明涉及电能表测试装置， 具体涉及一种电能表抗扰度测试装置。
[0003] ¾體
[0004] 为了确保电气、 电子产品在受到高频电磁干扰吋的抗静电放电干扰能力， 电气 、 电子产品都必须接受高频电磁场抗扰度测试， 目前公知的电能表高频电磁场 抗扰度测试装备是由电能表检验装置、 信号发生器、 功率放大器和天线等组成 。 测试过程必须在电波暗室中进行， 信号发生器产生进行该测试所需要 80MHz~ 2000MHz的标准要求频率信号， 在经过功率放大器放大功率以后， 由天线产生 测试标准要求的均匀性测试场地， 未调试的试验场强为 10V/m, 由电能表检测装 置提供被测电能表正常工作的电压和电流， 并记录下电能表误差值， 判断误差 的改变是否在相应标准规定的极限内。 由于在测试过程中， 按照标准， 被测试 产品需要暴露于电磁场中的电缆长度为 1M, 在测试吋往往由于设备电缆长度过 长且设备连接线路繁杂而导致线路状况絮乱难以分辨， 影响线路的快速准确连 接， 且连接线过长会受到高频的干扰而影响测试结果， 再来， 由于进行高频电 磁抗干扰测试的暗室造价很高， 测试设备昂贵， 因此测试费用高昂， 所以设备 连接线繁复不仅增加了不必要的测试吋间， 而且花费了更多的测试费用。
[0005] 发明内容
[0006] 为了克服上述现有技术的缺陷， 本发明提供一种使测试中设备之间的连线更加 方便、 快捷、 可靠以及最大限度减少连接线长度以降 ί氐受到高频干扰的电能表 抗扰度测试装置。
[0007] 为了解决上述技术问题， 本发明采用的技术方案为：
[0008] 一种电能表抗扰度测试装置， 包括支架座、 尾座和背板， 所述背板固定在支架 座上， 所述尾座固定在背板上；
[0009] 所述背板上设有电流接线端子、 脉冲端子和电压接线端子； 电压接线端子包括 电压火线 L接线端子和电压零线 Ν接线端子， 脉冲端子包括脉冲输出正极接线端 子和脉冲输出负极接线端子， 电流接线端子包括电流正极接线端子和电流负极 接线端子； 所述电流接线端子、 脉冲端子和电压接线端子分别与电能表检测设 备电连接；
[0010] 所述尾座上设有接线柱， 包括一个或一个以上的正极接线柱、 负极接线柱和电 压接线柱；
[0011] 所述正极接线柱和负极接线柱之间串 联， 首 端的正极接线柱与所述电流正极接线端子相连， 尾端的负极接线柱与所述的电 流负极接线端子相连；
[0012] 所述电压接线柱之间并联， 所述电压火线 L接线端子与所述首端的正极接线柱 电连接， 所述电压接线柱分别与电压零线 N接线端子电连接。
[0013] 其中， 所述尾座为两个或者两个以上。
[0014] 其中， 所述正极接线柱对应标有" +"、 负极接线柱对应标有" -"、 电压接线柱对 应标有 "Un"。
[0015] 其中， 所述接线端子位于所述尾座下方。
[0016] 其中， 所述电流接线端子一上一下的设于所述背板右端， 所述位于上部的电流 接线端子为电流正极接线端子， 下部为电流负极接线端子。
[0017] 其中， 所述火线 L接线端子设于所述零线 N接线端子左侧。
[0018] 其中， 所述脉冲输出端子为横排列， 所述脉冲输出端子左侧为脉冲输出正极， 右侧为脉冲输入负极。
[0019] 其中， 所述尾座上的接线柱为横排列。
[0020] 本发明的有益技术效果是： 区别与现有技术中电能表在 10V/米高频电磁场测试 过程中， 在进行被测电能表与电能表检测装置之间的连线吋， 过长的电缆长度 且连线端口之间没有明确的标示， 需要较长的吋间区分线路及接线端口， 过程 很繁杂且线路状况絮乱难以分辨， 影响线路的快速准确连接， 从而产生不必要 的测试费用， 且连接线过长将受到高频的干扰而影响测试结果等系列问题， 本 发明提供了一种电能表抗扰度测试装置， 本发明包括通过固定在支架座上的背 板， 以及安装在背板上的尾座及与各个尾座相对应的各类接线端子和接线柱， 该尾座用于安装被测电能表， 各类接线端子与接线柱与对应校验设备的各线路 连接， 具体有以下优点：
[0021] 可以明显减少测试现场的连线吋间并确保连线的可靠性， 由于高频磁场测试费 用很高， 通过该发明连接被测电能表与校验设备比通过软线直接连接线路节省 了近 2倍的操作吋间， 因此采用该发明装置进行测试不仅能节省大量的测试费用 , 还能省去不必要的测试吋间；
[0022] 将被测电能表安装在该发明装置上， 可以确保测试过程中被测设备稳定可靠的 摆放整齐， 不易滑落；
[0023] 测试过程中通过该发明装置进行被测设备与校验设备的连线， 由于设备之间内 部电流线为串 联连接， 即使是多台电能表同 吋进行检测， 也只需连接一根电压火线 L来提供多台被测电能表的工作电压， 只 需设置一个电流输出端子和电流输入端子， 而不用每台被测电能表分设电压火 线接线端子和电流接线端子， 减少被测电能表与校验设备之间的连线， 且能大 大缩短被测设备与检验设备之间的弓 I线， 能最大限度的避免过长弓 I线受到高频 干扰的问题。
[0024] 通过该装置可实现被测电能表与电能表校验设备之间的线路清晰准确而快速的 连接， 且能最大限度的减少连接线长度， 以降 ί氐受到高频干扰， 再来节省了不 必要的测试花费。
[0025] 國綱
[0026] 图 1是本发明电能表抗扰度测试装置的结构示意图。
[0027] 图 2是本发明电能表抗扰度测试装置的电路原理图。
[0028] 标号说明：
[0029] 支架座 -1; 尾座 -2; 背板 -3; 电流接线端子 -4; 脉冲端子 -5; 电压接线端子 -6;
接线柱 -7; 正极接线柱 -8; 负极接线柱 -9; 电压接线柱 -10。
[0030] t m^
[0031] 为详细说明本发明的技术内容、 构造特征、 所实现目的及效果， 以下结合实施 方式并配合附图详予说明。
[0032] 请参阅图 1 , 本发明的一种电能表抗扰度测试装置， 包括支架座 1、 尾座 2、 背 板 3、 电流接线端子 4、 脉冲端子 5、 电压接线端子 6、 接线柱 7、 正极接线柱 8、 负极接线柱 9和电压接线柱 10。
背板 3固定在支架座 1上， 背板 3上固定有尾座 2, 背板 3上设有电流接线端子 4、 脉冲端子 5和电压接线端子 6; 电压接线端子 6包括电压火线 L接线端子和电压零 线 N接线端子， 脉冲端子 5包括脉冲输出正极接线端子和脉冲输出负极接线端子 , 电流接线端子 4包括电流正极接线端子和电流负极接线端子； 在使用过程中， 电流接线端子 4、 脉冲端子 5和电压接线端子 6分别与电能表检测设备电连接； 尾 座 2上设有横排列的接线柱 7, 接线柱 7包括一个或者一个以上的正极接线柱 8、 负极接线柱 9和电压接线柱 10, 分别标有" +"、 "一"、 "Un"和"空"， 尾座 2用于安 装被测电能表， 可使被测电能表稳定可靠的摆放整齐， 且不易滑落， 尾座 2上的 接线柱 7按照标号用于对应连接尾座 2上被测电能表的电流进线、 电流出线和火 线电压， 接线柱 "空"为放空状态； 尾座 2可以是两个或者两个以上， 优选尾座 2 有三个， 分别对应安装被测 1号被测电能表、 2号被测电能表和 3号被测电能表， 测试吋， 分别对应连接电能表校验设备的 1号表、 2号表和 3号表。 背板 3上设有 电压接线端子 6、 脉冲端子 5和电流接线端子 4, 电压接线端子 6包括电压火线 L接 线端子和电压零线 N接线端子， 电流接线端子 4包括电流正极接线端子和电流负 极接线端子， 脉冲端子 5包括脉冲输出正极接线端子和脉冲输出负极接线端子。 电压零线 N接线端子用于分别连接电能表校验设备 2号表位和 3号表位的零线 N; 背板 3上设有电压火线 L接线端子， 优选所述电压火线 L接线端子设于第一尾座的 电压零线 N接线端子的左侧， 电压火线 L接线端子用于连接电能表校验设备的电 压输出火线， 以提供 1号被测电能表、 2号被测电能表和 3号被测电能表的工作电 压； 第一尾座、 第二尾座和第三尾座分别对应电连接的脉冲端子 5分别包括脉冲 输出正极接线端子和脉冲输出负极接线端子， 脉冲端子 5为横排列， 左侧为脉冲 输出正极接线端子， 右侧为脉冲输出负极接线端子， 所述脉冲端子 5用于分别与 对应被测电能表的脉冲输出连接； 所述脉冲端子 5用于分别与对应电能表校验设 备的 1号表位、 2号表位和 3号表位的脉冲输入正极和负极连接， 电能表输出的用 于校验的电能脉冲信号经过对应脉冲输出正极端子输出电能校验脉冲后通过连 接线输入到电能表校验设备对应的电能脉冲信号输入端子传输到校验设备进行 判断被测电能表输出功率， 计算出被测电能表的计量精度。 电流接线端子 4一上 一下的设于背板 3的右端， 电流接线端子 4为第一尾座、 第二尾座和第三尾座的 电流线串 联后引接到对应的电流接线端子 4 , 位于上方的电流接线端子 4为正极接线端子， 所述正极接线端子内部与所述电压 火线 L串 联， 用于连接电能表校验设备的电流 输出和电压输出， 提供被测电能表输入电流和输入电压， 位于下方的电流接线 端子 4为电流输出负极接线端子， 来自电能表检验设备的电流流经各被测电能表 后由电流端子负极流出， 回到校验设备， 作为电能表的校验电流。 其中， 优选 ： 设于背板 3上的尾座 2并不局限于一个， 可为多个， 便于根据需要同吋检测多 台电能表的 10V/米高频电磁场抗扰度； 所述接线端子位于尾座 2的下方， 方便被 测电能表与校验设备之间的连线。
[0034] 请参阅图 2, 本发明的一种电能表抗扰度测试装置的电路原理图，
[0035] 在各连接线连接完成后， 构成如图 2所述电路图， 电能表检验设备上的电电流 输出正极通过连线与所述背板 3上的电流正极接线端子连接， 电流正极接线端子 尾座上的正极接线柱 8连接， 所述尾座 2上的正极接线柱 8与负极接线柱 9之间 串 联， 具体的， 第一尾座上首端的正极接线 柱 8与电流正极接线端子串 联， 第一尾座上的 负极接线柱与第二尾座上的正极接线柱串 联 , 第二尾座上的正极接线柱与负极接线柱串
联， 第二尾座上的负极接线柱与第三尾座上的正极接线柱
串 联后， 第三尾座上的负极接线柱即尾端的 负极接线柱与电流负极接线端子串 、、/ 负极接线端子通过连线与电能表检验设备上的电流输出负极连接， 构成检验电 流回路。 电能表检验设备上的电压输出火线通过连线与背板 3上的电压火线 L接 线端子连接后， 电压火线 L接线端子与所述首端的正极接线柱 8电连接， 即与第 一尾座上的正极接线柱 8串 联， 第一尾座上的 电压接线柱 10、 第二尾座上的电压接线柱 10和第三尾座上的电压接线柱 10之间 并联， 所述电压接线柱 10分别与电压接线端子 6的电压零线 N接线端子电连接， 为被测电能表提供工作电压。 脉冲端子 5的脉冲输出正极和脉冲输出负极分别与 电能表检验设备的脉冲输入正极和脉冲输入负极
串 联， 构成检验脉冲回路。
[0036] 本发明具体实施过程如下：
[0037] 在进行电能表在 10V/米高频电磁场抗扰度测试过程中， 将本发明装置与被测电 能表置于 10V/米高频电磁场测试暗室内， 优选背板 3上设有三个尾座 2, 将 3台被 测电能表安装于本发明装置的 3个电能表连接尾座 2上， 通过接线端子和接线柱 7 与暗室外的电能表校验设备连接， 进行电能表在 10V/米高频电磁场抗扰度测试 , 所述具体的线路连接方式如下： 将 1号被测电能表、 2号被测电能表和 3号被测 电能表分别安装在对应的尾座 2上， 分别将 1号被测电能表、 2号被测电能表和 3 号被测电能表的电流进线、 电流出线和电压火线 Un分别与尾座 2上的接线柱 7对 应标有 "+"、 "-"和" Un"的接线柱 7连接， 标有"空"的接线柱 7放空。 所述 1号被测 电能表、 2号被测电能表和 3号被测电能表对应电能表校验设备的 1号表、 2号表 和 3号表， 由于被测电能表的工作电压由电能表校验设备提供， 将电能表校验设 备的输出电压连接到电压火线 L接线端子， 所述 1号被测电能表、 2号被测电能表 和 3号被测电能表内部的电压线为并联， 2号被测电能表和 3号被测电能表共用 1 号被测电能表的电压， 统一提供被测电能表的工作电压。 将电能表校验设备上 1 号表、 2号表和 3号表的电压零线 N分别接到对应 1号被测电能表、 2号被测电能表 和 3号被测电能表的电压零线 N接线端子， 当电能表校验设备只有一组电压输出 吋， 则 1号被测电能表、 2号被测电能表和 3号被测电能表的电压零线 N并联。 将 1 号被测电能表、 2号被测电能表和 3号被测电能表的脉冲输出端正极和负极分别 与对应的第一尾座、 第二尾座和第三尾座上的脉冲输出正极和负极端子连接， 将电能表校验设备上 1号表、 2号表和 3号表的脉冲输入线路分别与第一尾座、 第 二尾座和第三尾座上对应的脉冲输出正极和负极端子连接， 被测电能表输出用 于校验的电能脉冲信号通过脉冲输出正极和负极端子经由连接线与电能表校验 设备的脉冲输入正极和负极端子连接， 构成脉冲检验回路， 电能表校验设备接 收后通过被测电能表的脉冲信号判断被测电能表的功率， 进而得出被测电能表 的计量精度。 将电能表校验设备上的电流正极与电流负极对应连接背板 3右端上 下排列的电流正极和电流负极接线端子， 由于三个电能表尾座 2上电流线为 串 联连接， 来自电能表校验设备的电流正极 通过电流正极接线端子流经 1号被测电能表、 2号被测电能表和 3号被测电能表后 由电流负极接线端子流回到电能表校验设备， 作为电能表校验电流。 通过电能 表校验设备上接收到的被测电能表的电压、 电流和脉冲数据便可得出被测电能 表在 10V/米高频电磁场中的抗扰度。
[0038] 通过本装置连接被测电能表与电能表校验设备， 可以实现被测电能表与电能表 校验设备之间的线路清晰准确而快速的连接， 且能最大限度的减少连接线长度 , 以降 ί氐受到高频干扰， 再来节省了不必要的测试花费
[0039] 以上所述仅为本发明的实施例， 并非因此限制本发明的专利范围， 凡是利用本 发明说明书及附图内容所作的等效结构或等效流程变换， 或直接或间接运用在 其他相关的技术领域， 均同理包括在本发明的专利保护范围内。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种电能表抗扰度测试装置， 其特征在于， 包括支架座、 尾座和背板
， 所述背板固定在支架座上， 所述尾座固定在背板上；
所述背板上设有电流接线端子、 脉冲端子和电压接线端子； 电压接线 端子包括电压火线 L接线端子和电压零线 N接线端子， 脉冲端子包括 脉冲输出正极接线端子和脉冲输出负极接线端子， 电流接线端子包括 电流正极接线端子和电流负极接线端子； 所述电流接线端子、 脉冲端 子和电压接线端子分别与电能表检测设备电连接； 所述尾座上设有接线柱， 包括一个或一个以上的正极接线柱、 负极接 线柱和电压接线柱；
所述正极接线柱和负极接线柱之间串联， 首端的正极接线柱与所述电 流正极接线端子相连， 尾端的负极接线柱与所述的电流负极接线端子 相连；
所述电压接线柱之间并联， 所述电压火线 L接线端子与所述首端的正 极接线柱电连接， 所述电压接线柱分别与电压零线 N接线端子电连接
[权利要求 2] 所述一种电能表抗扰度测试装置， 其特征在于， 所述尾座为两个或者 两个以上。
[权利要求 3] 所述一种电能表抗扰度测试装置， 其特征在于， 所述正极接线柱对应 标有" +"、 负极接线柱对应标有" -"、 电压接线柱对应标有 "Un"。
[权利要求 4] 所述一种电能表抗扰度测试装置， 其特征在于， 所述接线端子位于所 述尾座下方。
[权利要求 5] 所述一种电能表抗扰度测试装置， 其特征在于， 所述电流接线端子一 上一下的设于所述背板右端， 所述位于上部的电流接线端子为电流正 极接线端子， 下部为电流负极接线端子。
[权利要求 6] 所述一种电能表抗扰度测试装置， 其特征在于， 所述火线 L接线端子 设于所述零线 N接线端子左侧。
[权利要求 7] 所述一种电能表抗扰度测试装置， 其特征在于， 所述脉冲输出端子为 横排列， 所述脉冲输出端子左侧为脉冲输出正极， 右侧为脉冲输入负 极。
[权利要求 8] 所述一种电能表抗扰度测试装置， 其特征在于， 所述尾座上的接线柱 为横排列。
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