技术领域technical field
本发明属于电能计量领域领域,尤其是一种快速批量电能表起动试验装置脉冲对齐控制模块。The invention belongs to the field of electric energy metering, in particular to a pulse alignment control module of a rapid batch electric energy meter start-up test device.
背景技术Background technique
电能表是一种测量额定电压下，所通过的时变功率对时间积分的计量器具。The watt-hour meter is a measuring instrument that measures the time-varying power passed by the rated voltage and the time integral.
起动试验为电能表的准确度试验。通常采用比较法进行电能表的准确度试验，即由功率源向标准表和被检表输送相同功率，由误差计算器接收标准表和被检表的输出脉冲并计算被检表的相对误差。标准表和被检表都标称有脉冲常数(每通过1kWh电能输出的脉冲数)，测量时认为标准表的脉冲常数Ks是真实值，而被检表的脉冲常数Km是名义值。Ks远大于Km。同一块电能表Km是定值,因此负载功率越大脉冲频率越高,脉冲间隔Tp越小。The starting test is the accuracy test of the electric energy meter. The comparison method is usually used for the accuracy test of the electric energy meter, that is, the same power is transmitted from the power source to the standard meter and the checked meter, and the error calculator receives the output pulses of the standard meter and the checked meter and calculates the relative error of the checked meter. Both the standard meter and the tested meter have a nominal pulse constant (the number of pulses output per 1kWh of electric energy). When measuring, the pulse constant Ks of the standard meter is considered to be a real value, while the pulse constant Km of the tested meter is a nominal value. Ks is much larger than Km . The same watt-hour meter Km is a fixed value, so the greater the load power, the higher the pulse frequency, and the smaller the pulse interval Tp .
电能表起动试验方法是：在起动功率下,在规定的时间Tstart内检测到脉冲输出即为合格。起动功率很小，因此Tstart很长，通常超过10min。该实验检测到脉冲即可结束,检测不到脉冲则试验时间必须达到Tstart。由于被检表第一个脉冲出现的时间具有随机性,当同一批次被检表数量超过30时,等待时间Tw超过0.9Tstart的概率高达0.96。The starting test method of the electric energy meter is: under the starting power, if the pulse output is detected within the specified time Tstart , it is qualified. The starting power is very small, so Tstart is very long, usually more than 10min. The experiment can end when the pulse is detected, and the test time must reach Tstart if the pulse is not detected. Due to the randomness of the first pulse of the checked meter, when the number of checked meters in the same batch exceeds 30, the probability of the waiting time Tw exceeding 0.9Tstart is as high as 0.96.
随着国网公司低压集抄工程的开展，大批量换装智能表，进而导致智能表检定工作量剧增。为了完成检定任务，应对智能表的大量需求，本发明提出了快速批量电能表起动试验装置脉冲对齐控制模块，通过减少电能表准确度试验的时间，提高电能表检测效率。With the development of the low-voltage centralized reading project of the State Grid Corporation, a large number of smart meters have been replaced, which has led to a sharp increase in the workload of smart meter verification. In order to complete the verification task and respond to the large demand of smart meters, the invention proposes a pulse alignment control module of a fast batch electric energy meter start-up test device, which improves the detection efficiency of electric energy meters by reducing the time for electric energy meter accuracy tests.
发明内容Contents of the invention
本发明的目的在于克服现有技术的不足之处，提供一种结构合理、使用方便、安全可靠、提高效率的快速批量电能表起动试验装置脉冲对齐控制模块。The object of the present invention is to overcome the disadvantages of the prior art, and provide a pulse alignment control module of a rapid batch electric energy meter start-up test device with reasonable structure, convenient use, safety and reliability, and improved efficiency.
本发明解决其技术问题是采取以下技术方案实现的：The present invention solves its technical problem and realizes by taking the following technical solutions:
一种快速批量电能表起动试验装置脉冲对齐控制模块，其特征在于：A pulse alignment control module of a fast batch electric energy meter starting test device, characterized in that:
交流电源的输出端连接电源控制器，电源控制器的输出端连接被检电能表向被检电能表供电，被检电能表连接有一脉冲信号捕捉模块，该脉冲信号捕捉模块的输出/输出端口连接中央控制器，将捕捉到的脉冲信号输送给中央控制器，并且，中央控制器发送信号控制脉冲信号捕捉模块的工作；The output end of the AC power supply is connected to the power controller, and the output end of the power controller is connected to the watt-hour meter to supply power to the watt-hour meter. The watt-hour meter is connected to a pulse signal capture module, and the output/output port of the pulse signal capture module is connected to The central controller transmits the captured pulse signal to the central controller, and the central controller sends a signal to control the work of the pulse signal capture module;
中央控制器的一个输出端连接电源控制器，调控电源控制器的工作；An output terminal of the central controller is connected to the power controller to regulate the work of the power controller;
被检电能表还同时连接电压采样模块以及电流采样模块，电流采样模块和电压采样模块的输出端均连接到一乘和电路的输入端将电流采样结果和电压采样结果传输给乘和电路，该乘和电路的输出端连接参比电路的输入端，参比电路的输出端连接中央控制器；The electric energy meter under test is also connected to the voltage sampling module and the current sampling module at the same time, and the output terminals of the current sampling module and the voltage sampling module are connected to the input terminal of a multiplying and summing circuit to transmit the current sampling result and the voltage sampling result to the multiplying and summing circuit. The output end of the multiplication and circuit is connected to the input end of the reference circuit, and the output end of the reference circuit is connected to the central controller;
中央控制器的一个输出/输出端口连接高速高精度计时器，进行数据互通；An output/output port of the central controller is connected to a high-speed high-precision timer for data communication;
中央控制器的一个输入端连接标准源表；One input terminal of the central controller is connected to the standard source meter;
批量电能表起动试验检定时间试验方案：Batch electric energy meter start-up test verification time test plan:
使用较大电流通过前部分能量，分别达到目标电能消耗1500J、2100J、2400J、2700J之后，再切换为原电流IQ＝0.005Ib。Use a larger current to pass through the front part of the energy to reach the target power consumption of 1500J, 2100J, 2400J, and 2700J respectively, and then switch to the original current IQ =0.005Ib .
而且，被检表两个相邻脉冲之间消耗的电能为一个定值记为E，在一定值电压U下，使用较大电流Im通过时间T1，达到目标电能消耗E1；之后在定值电压U下，切换为试验标准电流IQ，通过时间T2，达到剩余部分电能消耗E2，并记在定值电压U下，达到电能E值，所需通过脉冲间隔标准时间为TQ，则有E＝E1+E2＝U·Im·T1+U·IQ·T2，TP＝T1+T2，Moreover, the electric energy consumed between two adjacent pulses of the tested meter is a fixed value and is denoted as E. Under a certain value voltage U, use a larger currentIm to pass through time T1 to reach the target electric energy consumption E1 ; Under the fixed value voltage U, switch to the test standard currentIQ , pass the time T2, reach the remaining part of the electric energyconsumptionE2 , and record it under the fixed value voltage U, reach the electric energy E value, the standard time required to pass the pulse interval is TQ , then E＝E1 +E2 ＝U·Im ·T1 +U·IQ ·T2 , TP ＝T1 +T2 ,
使E＝0.9E，E＝0.1E，Im＝0.1Ib。Let E=0.9E, E=0.1E,Im =0.1Ib .
则可通过E1＝U·Im·T1，E＝E1+E2＝U·Im·T1+U·IQ·T2及TP＝T1+T2,Then E1 ＝U·Im ·T1 , E=E1+ E2 ＝U·Im ·T1+ U·IQ ·T2 and TP ＝T1 +T2 ,
推算得T1≈0.45*T2,Tp≈1.45*T2<<Tq≈10*T2。It is estimated that T1 ≈0.45*T2 , Tp ≈1.45*T2 <<Tq ≈10*T2 .
而且，具体步骤为：Moreover, the specific steps are:
⑴通过在标准表上安装计数器；(1) By installing a counter on the standard table;
⑵批量电能表起动试验检定，计算在一定值电压U下，使用较大电流Im通过时间T1，达到目标电能消耗E1时，得到标准表在电能E1值中所输出的脉冲数约Ks1；⑵Batch electric energy meter start-up test and verification, calculate the number of pulses output by the standard meter in the electric energy E1 value of about Ks1 when the target electric energy consumption E1 is reached by using a relatively large current Im through the time T1 under a certain value of voltage U;
⑶批量电能表潜动试验检定，在一定值电压U下，使用较大电流Im通过被检表和标准表；(3) Creep-moving test verification of batch electric energy meters, under a certain value of voltage U, use a relatively large current Im to pass through the tested meter and the standard meter;
⑷批量电能表基本误差试验检定，当计数器计数到达脉冲数Ks1时，在一定值电压U下，切换为试验标准电流IQ，直到被检表发出脉冲；⑷Basic error test verification of batch electric energy meters. When the counter counts to the number of pulses Ks1, under a certain voltage U, switch to the test standard current IQ until the tested meter sends out pulses;
⑸检定结束：进行检定结果判断，判断为“是”则试验结束；判断结果为“否”则试验未结束，则重复步骤⑴至步骤⑷直至检定结束。(5) Verification end: Judgment of the verification result, if the judgment is "yes", the test is over; if the judgment result is "no", the test is not over, then repeat steps ⑴ to step 4 until the verification is over.
本发明的优点和积极效果是：Advantage and positive effect of the present invention are:
本发明通过对批量电能表起动试验的试验前等待时间以及试验时间进行压缩，有效提高了批量电能表检定效率。并且该方法可应用于各类人工以及自动化电能计量装置的检定系统，有利于进一步完善智能电能表检定方案和满足供电单位用表需求，提升了计量检定装置检定管理水平。The invention effectively improves the verification efficiency of the batch electric energy meter by compressing the waiting time before the test and the test time of the batch electric energy meter start-up test. And this method can be applied to the verification system of various manual and automatic electric energy metering devices, which is conducive to further improving the verification scheme of smart electric energy meters and meeting the needs of power supply units for meters, and improving the verification management level of metering verification devices.
附图说明Description of drawings
图1为缩短脉冲间隔标准时间TQ的原理框图；Fig. 1 is the functional block diagram of shortening pulse interval standard time TQ ;
图2为电能表准确度试验控制原理图。Figure 2 is the control schematic diagram of the electric energy meter accuracy test.
具体实施方式detailed description
下面结合附图并通过具体实施例对本发明作进一步详述，以下实施例只是描述性的，不是限定性的，不能以此限定本发明的保护范围。The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.
一种快速批量电能表起动试验装置脉冲对齐控制模块，该控制模块缩短脉冲间隔标准时间TQ的原理框图如图1所示，A pulse alignment control module of a fast batch electric energy meter start-up test device, the principle block diagram of which shortens the pulse interval standard time TQ is shown in Figure 1,
交流电源的输出端连接电源控制器，电源控制的输出端连接被检电能表向被检电能表供电，被检电能表连接有一脉冲信号捕捉模块，该脉冲信号捕捉模块的输出/输出端口连接中央控制器，将捕捉到的脉冲信号输送给中央控制器，并且，中央控制器发送信号控制脉冲信号捕捉模块的工作；The output end of the AC power supply is connected to the power controller, and the output end of the power control is connected to the watt-hour meter to supply power to the watt-hour meter. The watt-hour meter is connected to a pulse signal capture module, and the output/output port of the pulse signal capture module is connected to the central The controller transmits the captured pulse signal to the central controller, and the central controller sends a signal to control the work of the pulse signal capture module;
中央控制器的一个输出端连接电源控制器，调控电源控制器的工作；An output terminal of the central controller is connected to the power controller to regulate the work of the power controller;
被检电能表还同时连接电压采样模块以及电流采样模块，电流采样模块和电压采样模块的输出端均连接到一乘和电路的输入端将电流采样结果和电压采样结果传输给乘和电路，该乘和电路的输出端连接参比电路的输入端，参比电路的输出端连接中央控制器；The electric energy meter under test is also connected to the voltage sampling module and the current sampling module at the same time, and the output terminals of the current sampling module and the voltage sampling module are connected to the input terminal of a multiplying and summing circuit to transmit the current sampling result and the voltage sampling result to the multiplying and summing circuit. The output end of the multiplication and circuit is connected to the input end of the reference circuit, and the output end of the reference circuit is connected to the central controller;
中央控制器的一个输出/输出端口连接高速高精度计时器，进行数据互通；An output/output port of the central controller is connected to a high-speed high-precision timer for data communication;
中央控制器的一个输入端连接标准源表。One input of the central controller is connected to a standard source meter.
批量电能表起动试验检定时间试验方案：Batch electric energy meter start-up test verification time test plan:
由检定规程得出，原起动时间需约为10.9min，记为TQ，在220V电压下通0.005Ib(约为0.025A)在规定时间内检测到第二个脉冲，则电表合格。电表的脉冲常数C为1200imp/KW·h，即两个相邻脉冲之间消耗的电能为ΔE＝1/1200KW·h(3000J)。由于电流非常小，第二个脉冲出现的时间较长，导致检测效率不高。According to the verification regulations, the original starting time needs to be about 10.9min, which is recorded as TQ , and the second pulse is detected within the specified time by passing 0.005Ib (about 0.025A) under the voltage of 220V, and the meter is qualified. The pulse constant C of the ammeter is 1200imp/KW·h, that is, the electric energy consumed between two adjacent pulses is ΔE=1/1200KW·h (3000J). Since the current is very small, the second pulse occurs for a long time, resulting in inefficient detection.
设想使用较大电流通过前部分能量，达到目标电能消耗(1500J、2100J、2400J、2700J)之后，再切换为原电流(IQ＝0.005Ib)，以达到减少时间的目的。Imagine using a larger current to pass through the front part of the energy to achieve the target power consumption (1500J, 2100J, 2400J, 2700J), and then switch to the original current (IQ =0.005Ib ) to achieve the purpose of reducing time.
理论上，此方法是可行的，按照先前的检定流程，我们需要检定3000J能量，改进之后只需检测(1500J、900J、600J、300J)能量，在相同功率下，检定时间大大缩短，且不违背实验的理论基础，但同时也需修改检定章程，即修改测试实验基准时间。In theory, this method is feasible. According to the previous verification process, we need to verify the energy of 3000J. After the improvement, we only need to detect (1500J, 900J, 600J, 300J) energy. Under the same power, the verification time is greatly shortened, and it does not violate The theoretical basis of the experiment, but at the same time it is necessary to modify the verification regulations, that is, to modify the benchmark time of the test experiment.
例如可使E＝0.9E，E＝0.1E，Im＝0.1Ib。For example, E=0.9E, E=0.1E,Im =0.1Ib can be set.
则可通过E1＝U·Im·T1，E＝E1+E2＝U·Im·T1+U·IQ·T2及TP＝T1+T2,Then E1 ＝U·Im ·T1 , E=E1+ E2 ＝U·Im ·T1+ U·IQ ·T2 and TP ＝T1 +T2 ,
推算得T1≈0.45*T2,Tp≈1.45*T2<<Tq≈10*T2。It is estimated that T1 ≈0.45*T2 , Tp ≈1.45*T2 <<Tq ≈10*T2 .
由于被检表第一个脉冲出现的时间具有随机性,当同一批次被检表数量超过30时,等待时间Tw超过0.9Tstart的概率高达0.96。可实现T1＜TW。Due to the randomness of the first pulse of the checked watch, when the number of checked watches in the same batch exceeds 30, the probability of the waiting time Tw exceeding 0.9Tstart is as high as 0.96. T1<TW can be realized.
通过在标准表上安装计数器，得到标准表在电能E1值中所输出的脉冲数约Ks1。通过使用较大电流通过前部分能量，当计数器记到脉冲约数Ks1时，实现时间计时目标，切换被检表通过电流IQ＝0.005Ib，达到计数目的。从而达到实现缩减批量电能表起动试验检定时间Tq和检定等待时间Tw的目标。进而达到缩减批量电能表起动试验检定时间的目的。。By installing a counter on the standard meter, the number of pulses output by the standard meter in the value of electric energy E1 is about Ks1. By using a larger current to pass through the front part of the energy, when the counter counts the number of pulses Ks1, the time timing goal is realized, and the current IQ=0.005Ib is switched through the checked meter to achieve the counting purpose. So as to achieve the goal of reducing the verification time Tq and verification waiting time Tw of the batch electric energy meter start-up test. Then the purpose of reducing the verification time of the start-up test of the batch electric energy meter is achieved. .
具体步骤为：The specific steps are:
⑴通过在标准表上安装计数器；(1) By installing a counter on the standard table;
⑵批量电能表起动试验检定，计算在一定值电压U下，使用较大电流Im通过时间T1，达到目标电能消耗E1时，得到标准表在电能E1值中所输出的脉冲数约Ks1；⑵Batch electric energy meter start-up test and verification, calculate the number of pulses output by the standard meter in the electric energy E1 value of about Ks1 when the target electric energy consumption E1 is reached by using a relatively large current Im through the time T1 under a certain value of voltage U;
⑶批量电能表潜动试验检定，在一定值电压U下，使用较大电流Im通过被检表和标准表；(3) Creep-moving test verification of batch electric energy meters, under a certain value of voltage U, use a relatively large current Im to pass through the tested meter and the standard meter;
⑷批量电能表基本误差试验检定，当计数器计数到达脉冲数Ks1时，在一定值电压U下，切换为试验标准电流IQ，直到被检表发出脉冲；⑷Basic error test verification of batch electric energy meters. When the counter counts to the number of pulses Ks1, under a certain voltage U, switch to the test standard current IQ until the tested meter sends out pulses;
⑸检定结束：进行检定结果判断，判断为“是”则试验结束；判断结果为“否”则试验未结束，则重复步骤⑴至步骤⑷直至检定结束。(5) Verification end: Judgment of the verification result, if the judgment is "yes", the test is over; if the judgment result is "no", the test is not over, then repeat steps ⑴ to step 4 until the verification is over.
基本原理Fundamental
电能表的准确度试验通常采用比较法进行电能表的准确度试验，即由功率源向标准表和被检表输送相同功率，由误差计算器接收标准表和被检表的输出脉冲并计算被检表的相对误差。标准表和被检表都标称有脉冲常数(每通过1kWh电能输出的脉冲数)，测量时认为标准表的脉冲常数Ks是真实值，而被检表的脉冲常数Km是名义值。Ks远大于Km。同一类型电能表Km基本相等,因此负载功率越大脉冲频率越高,脉冲间隔时间越小。The accuracy test of the electric energy meter usually adopts the comparison method to carry out the accuracy test of the electric energy meter, that is, the same power is transmitted from the power source to the standard meter and the tested meter, and the error calculator receives the output pulses of the standard meter and the tested meter and calculates the output pulse of the measured meter. The relative error of the check table. Both the standard meter and the tested meter have a nominal pulse constant (the number of pulses output per 1kWh of electric energy), and the pulse constant Ks of the standard meter is considered to be a real value during measurement, while the pulse constant Km of the tested meter is a nominal value. Ks is much larger than Km . The Km of the same type of electric energy meter is basically equal, so the greater the load power, the higher the pulse frequency and the shorter the pulse interval time.
由于被检表第一个脉冲出现的时间具有随机性,当同一批次被检表数量超过30时,记等待时间为Tw。则理论分析表明，Tw超过0.9的概率高达0.96。即一般Tw＞0.9。Due to the randomness of the time when the first pulse of the checked meter appears, when the number of checked meters in the same batch exceeds 30, record the waiting time as Tw . Theoretical analysis shows that the probability of Tw exceeding 0.9 is as high as 0.96. That is, generally Tw >0.9.
被检表两个相邻脉冲之间消耗的电能为一个定值,记为E。设想在一定值电压U下，使用较大电流Im通过时间T1，达到目标电能消耗E1；之后在定值电压U下，切换为试验标准电流IQ，通过时间T2，达到剩余部分电能消耗E2。并记在定值电压U下，达到电能E值，所需通过脉冲间隔标准时间为TQ。The electric energy consumed between two adjacent pulses of the tested meter is a fixed value, denoted as E. Assume that under a certain value voltage U, use a relatively large currentIm to pass the time T1 to reach the target power consumption E1 ; then under the constant value voltage U, switch to the test standard current IQ and pass the time T2 to reach the remaining part Electric energy consumption E2 . And record it under the fixed value voltage U, to reach the value of electric energy E, the standard time required to pass through the pulse interval is TQ .
则有E＝E1+E2＝U·Im·T1+U·IQ·T2，TP＝T1+T2。Then E=E1 +E2 = U·Im ·T1 +U·IQ ·T2 , TP =T1 +T2 .
其中，E1和Im是自变量，通过这两个值可求出T1，E2和IQ是自变量，通过这两个值可求出T2。进而可得到脉冲间隔时间。当Im＞IQ时，则有TP＜TQ，从而达到减小脉冲间隔标准时间TQ的目标。进而通过控制IQ值，可实现T1＜TW。Among them, E1 and Im are independent variables, and T1 can be obtained from these two values, and E2 and IQ are independent variables, and T2 can be obtained from these two values. Then the pulse interval time can be obtained. When Im > IQ , then TP < TQ , so as to achieve the goal of reducing the standard time TQ between pulses. Furthermore, by controlling the IQ value, T1 <TW can be realized.
例如使Im＝20IQ，E1＝0.9E，E2＝0.1E。For example, let Im =20IQ , E1 =0.9E, and E2 =0.1E.
则可通过E1＝U·Im·T1，E＝E1+E2＝U·Im·T1+U·IQ·T2及TP＝T1+T2，Then E1 =U·Im ·T1 , E=E1+ E2 =U·Im ·T1+ U·IQ ·T2 and TP =T1 +T2 ,
推算得T1≈0.45·T2，≈1.45*T2<<TQ≈10*T2,T1＜TW。It is estimated that T1 ≈0.45·T2 , ≈1.45*T2 <<TQ ≈10*T2 , T1 <TW .
由于Ks远大于Km，则可知标准表的脉冲间隔远小于TQ。通过在标准表上安装计数器，得到标准表在电能E1值中所输出的脉冲数约Ks1。通过使用较大电流通过前部分能量，当计数器记到脉冲约数Ks1时，切换被检表通过电流，达到计数目的。Since Ks is much larger than Km , it can be seen that the pulse interval of the standard meter is much smaller than TQ . By installing a counter on the standard meter, the number of pulses output by the standard meter in the value of electric energy E1 is about Ks1 . By using a larger current to pass through the front part of the energy, when the counter counts the number of pulses Ks1 , switch the current through the tested meter to achieve the purpose of counting.
尽管为说明目的公开了本发明的实施例和附图，但是本领域的技术人员可以理解：在不脱离本发明的精神和范围内，各种替换、变化和修改都是可能的，因此，本发明的范围不局限于实施例和附图所公开的内容。Although the embodiments and drawings of the present invention are disclosed for the purpose of illustration, those skilled in the art can understand that various replacements, changes and modifications are possible without departing from the spirit and scope of the present invention. The scope of the invention is not limited to what is disclosed in the embodiments and drawings.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361940.2ACN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610361940.2ACN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
| Publication Number | Publication Date |
|---|---|
| CN105911509Atrue CN105911509A (en) | 2016-08-31 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610361940.2APendingCN105911509A (en) | 2016-05-27 | 2016-05-27 | Rapid batch watt-hour meter starting test device pulse alignment control module |
| Country | Link |
|---|---|
| CN (1) | CN105911509A (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133569A (en)* | 2019-05-28 | 2019-08-16 | 国网河北省电力有限公司邢台供电分公司 | Electric energy meter verification method and device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0420545A2 (en)* | 1989-09-25 | 1991-04-03 | General Electric Company | Electronic watthour meter |
| JPH0850938A (en)* | 1994-08-08 | 1996-02-20 | Nippon Denki Keiki Kenteishiyo | Connection installation for electrical equipment |
| CN102087352A (en)* | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| CN103630871A (en)* | 2013-12-09 | 2014-03-12 | 国家电网公司 | Testing device for dynamic characteristics of electronic energy meter |
| CN203572959U (en)* | 2013-12-09 | 2014-04-30 | 国家电网公司 | Electronic electric energy meter dynamic characteristic testing device |
| CN103926553A (en)* | 2014-04-24 | 2014-07-16 | 国家电网公司 | Self-service single-phase electric energy meter error calibration device and method |
| JP2015010983A (en)* | 2013-07-01 | 2015-01-19 | 日置電機株式会社 | Impedance measuring device |
| CN104808168A (en)* | 2015-03-25 | 2015-07-29 | 广州市格宁电气有限公司 | Rapid electric energy meter verification method based on segmented current technology |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0420545A2 (en)* | 1989-09-25 | 1991-04-03 | General Electric Company | Electronic watthour meter |
| JPH0850938A (en)* | 1994-08-08 | 1996-02-20 | Nippon Denki Keiki Kenteishiyo | Connection installation for electrical equipment |
| CN102087352A (en)* | 2011-01-31 | 2011-06-08 | 浙江省电力公司 | Three-phase intelligent watt-hour meter inspection device and method |
| JP2015010983A (en)* | 2013-07-01 | 2015-01-19 | 日置電機株式会社 | Impedance measuring device |
| CN103630871A (en)* | 2013-12-09 | 2014-03-12 | 国家电网公司 | Testing device for dynamic characteristics of electronic energy meter |
| CN203572959U (en)* | 2013-12-09 | 2014-04-30 | 国家电网公司 | Electronic electric energy meter dynamic characteristic testing device |
| CN103926553A (en)* | 2014-04-24 | 2014-07-16 | 国家电网公司 | Self-service single-phase electric energy meter error calibration device and method |
| CN104808168A (en)* | 2015-03-25 | 2015-07-29 | 广州市格宁电气有限公司 | Rapid electric energy meter verification method based on segmented current technology |
| Title |
|---|
| 周伟伟: "基于CANBUS的多工位智能电能表校表装置设计与实现", 《中国优秀硕士学位论文全文数据库·工程科技Ⅱ辑》* |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133569A (en)* | 2019-05-28 | 2019-08-16 | 国网河北省电力有限公司邢台供电分公司 | Electric energy meter verification method and device |
| Publication | Publication Date | Title |
|---|---|---|
| CN106054107A (en) | Fast batch electric energy meter false actuation test device pulse alignment control module | |
| CN106093831A (en) | Rapid batch electric energy meter false actuation test method | |
| CN103630871B (en) | Electronic electric energy meter dynamic characteristic test device | |
| CN104569902B (en) | Digital type electric energy meter power consumption measuring device and method | |
| CN109613425A (en) | Converter valve test system and test method | |
| CN202421479U (en) | Multi-parameter test device | |
| CN103472433B (en) | Intelligent substation electric energy measuring secondary system virtual load error detection device and method | |
| CN101710159A (en) | Novel direct-current converter valve test unit | |
| CN201993462U (en) | Three-phase intelligent electric energy meter checking device | |
| CN203572959U (en) | Electronic electric energy meter dynamic characteristic testing device | |
| CN106405286B (en) | The automatic test approach and system of quality monitoring device of electrical energy | |
| CN203324466U (en) | Verification system capable of verifying multiple electric-energy meters with different current specifications at the same time | |
| CN106093828A (en) | Rapid batch Basic Error of Energy Meter test calibration method | |
| CN106990381A (en) | A kind of transformer magnetic saturation detection means | |
| CN107085196A (en) | A verification method for an electronic AC watt-hour meter | |
| CN105866727A (en) | Real-time checking system for electric energy meter calibrating device | |
| CN203396938U (en) | Intelligent electric energy meter with remote calibration device | |
| CN105911511A (en) | Large-scale fast batch single-phase watt-hour meter automatic calibration system and method | |
| CN203720239U (en) | On-line monitor and online monitoring system of ultrahigh-voltage DC lightning arrester | |
| CN206945947U (en) | A kind of testing device of digital electric energy meter for sampling Detection | |
| CN105911509A (en) | Rapid batch watt-hour meter starting test device pulse alignment control module | |
| CN203433064U (en) | Detecting device based on analog quantity input combining unit | |
| CN105911510A (en) | Micro power control device and micro power control method based on high-frequency pulse of standard watt-hour meter | |
| CN104101856A (en) | Method and device for detecting error of electronic measurement unit of zero-flux DC (Direct Current) current transformer | |
| CN106932746A (en) | A kind of electronic current mutual inductor performance test system and method |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication | Application publication date:20160831 |