CN104459600A - Portable intelligent electronic energy meter field calibration device - Google Patents

Portable intelligent electronic energy meter field calibration device Download PDF

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CN104459600A
CN104459600A CN 201410731037 CN201410731037A CN104459600A CN 104459600 A CN104459600 A CN 104459600A CN 201410731037 CN201410731037 CN 201410731037 CN 201410731037 A CN201410731037 A CN 201410731037A CN 104459600 A CN104459600 A CN 104459600A
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meter
standard
pulse counter
connected
smart meter
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CN 201410731037
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Chinese (zh)
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刘佳
董旭亮
崔威
刘欢
王娟
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国家电网公司
国网河北省电力公司
国网河北省电力公司保定供电分公司
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Abstract

The invention discloses a portable intelligent electronic energy meter field calibration device. The portable intelligent electronic energy meter field calibration device comprises a box body. A first pulse counter, a second pulse counter, a standard intelligent energy meter, a 9 V direct-current power supply, a load and a leakage protector are arranged in the box body. The first pulse counter is connected with an energy meter to be measured. The second pulse counter is connected with the standard intelligent energy meter. The input end of the standard energy meter is connected with the intelligent energy meter to be measured in series. The output end of the standard energy meter is connected with the load. The leakage protector is connected with the input end of the intelligent energy meter to be measured. The 9 V direct-current power supply supplies power to the first pulse counter and the second pulse counter. The portable intelligent electronic energy meter field calibration device has the advantages of being visual, high in practicability, easy to operate, popular and easy to understand, accurate and rapid in detection and the like.

Description

一种便携式智能电子式电能表现场校验装置 A portable intelligent electronic energy meter calibration device field

技术领域 FIELD

[0001] 本发明涉及一种电子式电能表检修工具的技术领域。 [0001] The present invention relates to an electronic energy meter BACKGROUND maintenance tool.

背景技术 Background technique

[0002] 电能表所走的电量是用户缴纳电费的依据,电能表运行正常与否关系到千家万户。 [0002] Meter are taking charge is based on the user to pay for electricity, the meter is running properly or not related to the household. 当前,电子式电能表以其功率损耗低、体积小、重量轻、精度高、防窃电、负荷宽、安装方便、功能多等优点已经替代了原来老式的机械式电能表。 Currently, electronic energy meter of its low power consumption, small size, light weight, high precision, anti-theft, wide load, easy installation, etc. Multi-function has been replaced by the original old mechanical energy meter. 但随之而来的就是现在一些非法小企业制造一些不合格的电能表,而这些电能表安全性、稳定性差,准确度等级低。 But the attendant is now illegal to make some small businesses failed meter, which meter security, poor stability, low level of accuracy. 另外部分用户违约用电,擅自超过电能表的额定电流用电,或有的电能表年久失修这些因素导致电能表计量不准确。 Also part of the user default power, without exceeding the rated current of the electricity meter, or some of these factors lead to energy meter disrepair meter measurement inaccuracies.

[0003] 传统的检验对电能表计量的测量方法是让用户找专业的电工人员拆下电能表,客户拿着自己的电能表去专门计量鉴定单位或专为校验电能表的机构去检验电能表的快慢,整个流程存在以下几个主要问题:1、电工无法对运行的电能表计量是否准确做一个明确的判断;2、用户在这段时间用不上电,严重影响用户的用电质量。 [0003] The traditional test method for measuring energy metering is to allow users to find a professional electrician remove the meter, customers took their meter to meter specially designed for identification unit or agency of the check meter to test electrical energy table of speed, the whole process there are several major problems: 1, electricians can not run on meter metering is accurate to make a clear judgment; 2, users do not have electricity at this time, seriously affecting the quality of electricity users . 既然如此,部分用户承认自己的电能表计量“正常”而拒绝效检,阻碍电工的工作,所以就需要电工在现场即时出示有力证明依据。 That being the case, some users recognize their own power metering "normal" and refused to effect the seizure, obstruct the work of electricians, so we need to show real-time electrician at the site based on strong evidence.

[0004] 随着科学技术的发展,目前市场上现场校验电能表的仪器的出现,虽然能带电检验,但接线复杂,要求要有高技术人员才能操作,如果室外阳光强烈,光电采样器不容易采集电能表的输出脉冲信号,而且现场电能表校验仪价格昂贵,保护不当仪器,容易损坏。 [0004] With the development of science and technology, the instrument on the market currently appears on-site calibration of the meter, although the test can be charged, but the wiring complexity, required to have high-tech personnel to operate, if the outdoor sun is strong, photoelectric sampler is not readily collect meter output pulse signal, and the field calibrator meter is expensive, inadequate protection equipment, easily damaged.

发明内容 SUMMARY

[0005] 本发明所要解决的技术问题是提供一种操作简单、直观、通俗易懂、检测准确、快捷的便携式智能电子式电能表现场校验装置。 [0005] The present invention solves the technical problem is to provide a simple, intuitive, easy to understand, the detection accuracy, and efficient portable intelligent electronic energy meter calibration device field.

[0006] 为解决上述技术问题,本发明所采取的技术方案是:一种便携式智能电子式电能表现场校验装置,包括箱体,所述箱体内部设有第一脉冲计数器、第二脉冲计数器、标准智能电能表、9V直流电源、负载和漏电保护器,所述第一脉冲计数器与待测智能电能表连接,所述第二脉冲计数器与标准智能电能表连接,所述标准电能表输入端与待测智能电能表串联连接,所述标准电能表输出端与负载连接,所述漏电保护器与待测智能电能表的输入端连接,所述9V直流电源为所述第一脉冲计数器与所述第二脉冲计数器提供电源。 [0006] To solve the above technical problem, the technical solution by the present invention is: a portable intelligent electronic energy meter field calibration apparatus includes a housing, said housing interior provided with a first pulse counter, the second pulse counter, standard smart meter, 9V DC, load and leakage protection, the first pulse counter is connected with the smart meter under test, the second pulse counter is connected to a standard smart meter, the meter standard input end of the smart meter under test are connected in series, the standard meter output terminal connected to a load, the drain terminal of the input protection device to be tested and the smart meter is connected to a 9V DC power supply and said first pulse counter the second pulse counter to provide power.

[0007] 优选的,所述负载为1000W的电吹风机。 [0007] Preferably, the blower load of 1000W.

[0008] 优选的,所述第一脉冲计数器和第二脉冲计数器均为⑶D7949A-P12V四位数字循环加减计数器。 [0008] Preferably, the first and second pulse counter both pulse counters ⑶D7949A-P12V four cycle digital down counter.

[0009] 优选的,所述箱体设有电缆进出线的穿线孔。 [0009] Preferably, the housing is provided with a conduit opening out cable.

[0010] 优选的,所述标准智能电能表为误差范围内符合国家标准GB/T7215.321技术要求合格的电能表。 [0010] Preferably, the smart meter is the standard error of the national standard GB / T7215.321 meter qualified technical requirements.

[0011] 采用上述技术方案所产生的有益效果在于:本发明便于组装生产,而且直观、实用性强,通俗易懂;电力客户也可以现场观看,使客户更加放心,最后这也对电费的收缴工作和电能表的保护同样有很大的帮助。 [0011] With the above technical solutions that produced beneficial effects: the present invention facilitates assembly, and intuitive, practical, easy to understand; power customer site can be viewed, so that customers more assured, this last also collected for electricity protection and energy meter is also a great help. 如客户私自开启电能计量装置封印进行窃电等隐蔽手段进行窃电的,采用此方法同样能有效查出,对不法分子也有一定的震慑作用,即时查处,维护国家利益和用电秩序。 If the customer without permission open energy metering device seal were stealing and other covert means of stealing, using this same method can effectively detect, for criminals also have some deterrent effect, immediate investigation, and electricity order to safeguard national interests.

附图说明 BRIEF DESCRIPTION

[0012] 图1是本发明的电路原理示意图。 [0012] FIG. 1 is a schematic circuit diagram of the principles of the present invention.

具体实施方式 detailed description

[0013] 下面结合附图和具体实施方式对本发明作进一步详细的说明。 [0013] The present invention will be further described in detail in conjunction with accompanying drawings and specific embodiments.

[0014] 如图1所示,本发明是一种便携式智能电子式电能表现场校验装置,包括箱体,所述箱体内部设有第一脉冲计数器、第二脉冲计数器、标准智能电能表、9V直流电源、负载和漏电保护器,所述第一脉冲计数器与待测智能电能表连接,所述第二脉冲计数器与标准智能电能表连接,所述标准电能表输入端与待测智能电能表串联连接,所述标准电能表输出端与负载连接,所述漏电保护器与待测智能电能表的输入端连接,所述9V直流电源为所述第一脉冲计数器与所述第二脉冲计数器提供电源;所述负载为1000W的电吹风机;所述第一脉冲计数器和第二脉冲计数器均为⑶D7949A-P12V四位数字循环加减计数器;所述箱体设有电缆进出线的穿线孔;所述标准智能电能表为误差范围内符合国家标准GB/T7215.321技术要求合格的电能表。 [0014] As shown in FIG 1, the present invention is a portable electronic smart meter field calibration apparatus comprising a housing, said housing interior provided with a first pulse counter, a second pulse counter, a standard smart meter , 9V DC, load and leakage protection, the first pulse counter is connected with the smart meter under test, the second pulse counter with the standard smart meter is connected to the input terminal of the standard with a test meter smart energy tables are connected in series, the standard meter output terminal connected to a load, the drain terminal of the input protection device to be tested and the smart meter is connected to a 9V DC power supply to the first pulse and the second pulse counter counter providing power; 1000W load of the hair dryer; the first and second pulse counter both pulse counters ⑶D7949A-P12V four cycle digital down counter; threading said housing is provided with inlet and outlet holes of the cables; the said standard smart meter is within the error range national standard GB / T7215.321 meter qualified technical requirements.

[0015] 实施例: [0015] Example:

在电子系统中一般含有模拟和数字两种构件。 In the electronic system generally contains both analog and digital components. 模拟电路是系统中必须的组成部分。 Analog circuits are necessary components of the system. 但为便于存储、分析和传输信号,数字电路更为优越性。 For convenience store, analyze and transmit signals, the digital circuit is more advantages. 电子式电能表输出信号为脉冲信号。 Electronic energy meter output signal is a pulse signal. 计数器是数字系统中用的较多的基本逻辑器件。 Is the basic counter logic devices used in the digital system more. 它不仅能记录输入时钟脉冲的个数,还可以实现分频、定时、产生节拍脉冲和脉冲序列等。 It can not only record the number of input clock pulses, can also achieve frequency, timing and pulse sequence generating pulse beat and the like. 计数器的种类很多,按时钟脉冲输入方式的不同,可分为同步计数器和异步计数器,按进位体制的不同,可分为二进制计数器和非二进制计数器,按计数过程中数字递减趋势的不同,可分为加计数器和减计数器和可逆计数器。 Many types counter, according to different clock pulse input of counter can be divided into synchronous and asynchronous counters, different binary system can be divided into non-binary counter, and binary counter, a different trend of decreasing the count by the digital process, separable Up counter and the down counter and the reversible counter. 本产品使用⑶D7949A-P12V四位数字循环加减计数器。 This product ⑶D7949A-P12V four cycle digital down counter. 它有以下特点:1、采用高速度集成芯片,高亮度LED数码管,外形美观,安装简便。 It has the following characteristics: 1, using high-speed integrated chip, digital high-brightness LED, beautiful appearance, easy to install. 2、具有高速计数功能,稳定性好,抗干扰能力强,计数精准。 2, high-speed counting function, stability, anti-interference ability, accurate counting. 3、计数值掉电不丢失4、广泛应用于自动配料装置,绕线机械,包装机械,纺织等自动化及检测设备。 3, the count value of non-volatile 4, widely used in automatic dosing device, the winding machine, packaging machinery, textile and other automated test equipment. 技术参数:电源电压:DC6V-15.5V,工作电流:〈30mA,计数信号:脉冲,触发沿:上升沿,显示范围:0000-9999,计数方式:(循环)加,复位信号:短接。 Technical data: Supply Voltage: DC6V-15.5V, working current: <30mA, count signals: a pulse trigger edge: rising, display range: 0000-9999, cycle counting :() was added, the reset signal: short. 重量:50g。 Weight: 50g. 外形尺寸:79mm*43mm*30.5mm,显示方式:LED数字显示,数码管:0.56英寸红色。 Dimensions: 79mm * 43mm * 30.5mm, Display mode: LED digital display, LED: 0.56 inches red. 它具有能识别电子式电能表脉冲的功能,而且做到其接线简单,使用安全,能够做到实时电能表检测和防窃电功能。 It has to identify electronic energy meter pulse function, and the wiring do simple, safe, able to do real-time detection and anti-tampering function meter.

[0016] 具体操作中,在准备工作前先在计量设备上检测一块在误差范围内符合国家标准GB/T7215.321技术要求合格的电能表(以下称标准表),民用表用±2.0级。 [0016] Specific operation, before the first detection in the preparation of a metering device within an error range national standard GB / T7215.321 qualified technical requirements meter (hereinafter referred to as standard table), with ± 2.0 Table civilian levels. 然后把电子计数器安装在电能表的空壳里面,这样便于接线,运行也可靠,而且便于安装。 Then the electronic counter meter mounted inside a shell, which facilitates wiring to run reliably, and easy to install. 这就是已经制作好的脉冲计数器。 This is already making good pulse counter. 打开电表箱,先把要检测的电能表放在箱体内的一表位上,二表位放置脉冲计数器,二表位放置脉冲计数器的输入端外接9V直流电源,其输入端子接需要检测的电能表脉冲输出端。 Open the meter box, the first to be detected on a meter cabinets epitope, an epitope is placed two pulse counters, pulse counter placed two epitopes of an external 9V DC power supply input terminal, an input terminal connected to the electrical energy to be detected table pulse output. 脉冲计数器的中间接线端子用来短接,用来复位计数器。 Intermediate pulse counter terminals for short, is used to reset the counter. (注意电能表的脉冲输出连接计数器的输入端的极性)以监测第一块表在同样的负荷下所输出脉冲的个数。 (Note that the polarity of the meter output connected to an input terminal of the pulse counter) to monitor the number of a table under the same load of the output pulse. 然后把标准表电能表放在三表位上,四表位放置第二个脉冲计数器,以监测第二块表在同样的负荷下所输出脉冲的个数。 Then the standard hour meter on three epitopes, epitope placed four second pulse counter, to monitor at the same number of output pulses of the second load block table. 接线方面与上述相同。 With connecting the same as described above. 带有电吹风机的一次回路用6平方的红色、蓝色铜线连接,二次回路是测量信号回路,用1.5平方的黄色、绿色导线连接,供给脉冲计数器测量使用。 Hair dryer with a primary circuit with 6 sq red, blue copper wires, the secondary circuit is a measuring signal circuit, with 1.5 square yellow, green wires, supply measured using a pulse counter. 9V直流电源用1.5平方的黑色、红色铜线连接。 9V DC power supply with a 1.5 square black, red copper wire. 电能表通电接220V电源,然后把待检测的电能表与标准表串联,也就是组成串联电路,把事先准备好的吹风机接在标准表的负载侧,组成简单的串联电路。 220V power meter connected to the power supply, and the power meter to be detected in series with the standard table, that is, a series circuit composed of, pre-prepared blower connected on the load side of the standard table, a series circuit of a simple composition. 这时候两块电能表通过在同一负载下流过电能表的电流是一样的,而且两块表的额定电压相等,它们的输出脉冲的个数也是相同的。 This time two meter by the same load current flowing through the meter is the same, and the two tables are equal to the rated voltage, the number of output pulses thereof are also the same. 用同样电量时,测量出两块电能表各自输出脉冲的个数,然后通过把两块脉冲计数器显示出来的数值进行对比,从而设计的专门电路。 Similarly with electricity, the measured number of output pulses of each two meter, and then by comparing the two values ​​of the pulse counter shown, so that a specially designed circuit. 三相有功电能表及无功电能表的校验方法和以上的方法相同,只需要把要检测的电能表换成三相有功电能表,把标准表换成同样与被检测电能表常数一样的三相有功电能表,脉冲计数器在各自的电能表中取样比较。 The method of checking phase active and reactive power meter and meter the same manner as above, only need to be detected into a three-phase meter watthour meter, to replace the standard table with the same meter constant as the detection of phase active energy meter, the pulse counter compares a sampling of the respective meter. 由于此计数器是上升沿计量的,所以标准表与要检测的电能表有±limp/KWH个偏差,这属于正常现象。 Since the rising edge of this counter is measured, the standard table with the meter to be detected with a ± limp / KWH a deviation, this is normal.

[0017] 这样一台电子式电能表现场校验仪就制作完成了,它是专门为现场校验单、三相有功和无功电子式电能表而设计开发的一款便携式设备。 [0017] Such an electronic energy meter field calibrator is thus completed, it is designed for single-site verification, active and reactive three-phase electronic energy meter design and development of a portable device. 该方法应用高精度采样技术,并结合最新数字信号处理方法,为现场校验电能表和其它多种电工仪表提供了一套方便高效的解决方案。 This method uses high-precision sampling technique, combined with the latest digital signal processing method provides a convenient and efficient solution for field calibration meter and many other electrical instrumentation.

Claims (5)

  1. 1.一种便携式智能电子式电能表现场校验装置,其特征在于:包括箱体,所述箱体内部设有第一脉冲计数器、第二脉冲计数器、标准智能电能表、9V直流电源、负载和漏电保护器,所述第一脉冲计数器与待测智能电能表连接,所述第二脉冲计数器与标准智能电能表连接,所述标准电能表输入端与待测智能电能表串联连接,所述标准电能表输出端与负载连接,所述漏电保护器与待测智能电能表的输入端连接,所述9V直流电源为所述第一脉冲计数器与所述第二脉冲计数器提供电源。 A portable electronic smart meter field calibration apparatus comprising: a housing, the inner housing is provided with a first pulse counter, a second pulse counter, a standard smart meter, 9V DC, load and leakage protection, the first pulse counter is connected with the smart meter under test, the second pulse counter with the standard smart meter is connected to the input terminal of the standard with a test meter smart meter are connected in series, the standard meter output terminal connected to a load, the drain terminal of the input protection device to be tested and the smart meter is connected to a 9V DC power supply provides power to the second pulse of the first pulse counter is a counter.
  2. 2.根据权利要求1所述的一种便携式智能电子式电能表现场校验装置,其特征在于:所述负载为100W的电吹风机。 2. A portable electronic smart meter field calibration device according to claim 1, wherein: said load is a hair dryer 100W.
  3. 3.根据权利要求1所述的一种便携式智能电子式电能表现场校验装置,其特征在于:所述第一脉冲计数器和第二脉冲计数器均为⑶D7949A-P12V四位数字循环加减计数器。 3. A portable electronic smart meter field calibration device according to claim 1, wherein: said first and second pulse counter both pulse counters ⑶D7949A-P12V four cycle digital down counter.
  4. 4.根据权利要求1所述的一种便携式智能电子式电能表现场校验装置,其特征在于:所述箱体设有电缆进出线的穿线孔。 4. A portable electronic smart meter field calibration device according to claim 1, wherein: said housing is provided with a conduit opening out cable.
  5. 5.根据权利要求1所述的一种便携式智能电子式电能表现场校验装置,其特征在于:所述标准智能电能表为误差范围内符合国家标准GB/T7215.321技术要求合格的电能表。 5. A portable electronic smart meter field calibration device according to claim 1, wherein: said standard smart meter is within the error range national standard GB / T7215.321 qualified technical requirements meter .
CN 201410731037 2014-12-05 2014-12-05 Portable intelligent electronic energy meter field calibration device CN104459600A (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN106093637A (en) * 2016-06-07 2016-11-09 国网四川省电力公司电力科学研究院 Elimination method of dead zone defect between primary equipment and secondary equipment in intelligent substation
CN106154212A (en) * 2016-08-31 2016-11-23 宜兴市森维电子有限公司 EFT/B (Electrical Fast Transient-Burst) noise immunity testing system under on-load condition of electric energy meter

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