CN114200384B - An electric energy meter detection device with multiple detection methods - Google Patents
An electric energy meter detection device with multiple detection methods Download PDFInfo
- Publication number
- CN114200384B CN114200384B CN202111524784.4A CN202111524784A CN114200384B CN 114200384 B CN114200384 B CN 114200384B CN 202111524784 A CN202111524784 A CN 202111524784A CN 114200384 B CN114200384 B CN 114200384B
- Authority
- CN
- China
- Prior art keywords
- electric energy
- energy meter
- line
- detector
- neutral
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
本发明公开了一种具有多种检测方式的电能表检测装置,涉及电能表检测技术领域,包括第一电能表、总开关和检测组件,所述第一电能表的外侧表面连接有读数盘,且读数盘的底部外侧设置有圈数走表盘。本发明检测组件可对第一电能表和总开关之间的电流量进行读取,若无电流量,说明第一电能表运转正常,若第一电能表和总开关之间有电流量,钳形电流表进行工作,若钳形电流表感应到电量,则说明火线出线和零线出线表面有其他接口通向别处,此时播报器会发出窃电信号,提醒工作人员电量被盗窃,若钳形电流表未检测到电流量,则说明第一电能表存在问题,通过该方式,能有效判断电能表是否故障,同时可判断是否有人窃电,能提升设备的检测范围和功能性。
The invention discloses a detection device for an electric energy meter with multiple detection modes, relates to the technical field of electric energy meter detection, and comprises a first electric energy meter, a main switch and a detection assembly, the outer surface of the first electric energy meter is connected with a reading plate, And the bottom outer side of the reading plate is provided with a lap dial. The detection component of the present invention can read the current between the first electric energy meter and the main switch. If there is no electric current, it means that the first electric energy meter is operating normally. If there is electric current between the first electric energy meter and the main switch, the clamp If the clamp ammeter senses the electricity, it means that there are other interfaces on the surface of the outgoing wire and the neutral line leading to other places. At this time, the announcer will send out a stealing signal to remind the staff that the power has been stolen. If the clamp ammeter If the amount of current is not detected, it means that there is a problem with the first electric energy meter. Through this method, it is possible to effectively determine whether the electric energy meter is faulty, and at the same time determine whether someone is stealing electricity, which can improve the detection range and functionality of the equipment.
Description
技术领域technical field
本发明涉及电能表检测技术领域,具体为一种具有多种检测方式的电能表检测装置。The invention relates to the technical field of electric energy meter detection, in particular to an electric energy meter detection device with multiple detection modes.
背景技术Background technique
电能表是用来测量电能的仪表,又称电度表、火表、千瓦小时表,指测量各种电学量的仪表,使用电能表时要注意,在低电压(不超过500伏)和小电流(几十安)的情况下,电能表可直接接入电路进行测量,在高电压或大电流的情况下,电能表不能直接接入线路,需配合电压互感器或电流互感器使用,而电能表检测装置是一种可对电能表的运转准确性进行检测的装置。An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, and a kilowatt-hour meter. It refers to an instrument for measuring various electrical quantities. When using an electric energy meter, pay attention to it. In the case of current (tens of amperes), the electric energy meter can be directly connected to the circuit for measurement. In the case of high voltage or high current, the electric energy meter cannot be directly connected to the line, and it needs to be used with a voltage transformer or a current transformer. The electric energy meter detection device is a device that can detect the operation accuracy of the electric energy meter.
市场上的电能表检测装置通常只能使用单种方式对电能表进行检测,这导致电能表的结果容易出现误差,并且电能表检测装置功能单一,只能对电能表的运转准确性进行检测。Electric energy meter detection devices on the market can only use a single method to detect electric energy meters, which leads to errors in the results of electric energy meters, and the single function of electric energy meter detection devices can only detect the operation accuracy of electric energy meters.
发明内容Contents of the invention
本发明的目的在于提供一种具有多种检测方式的电能表检测装置,以解决上述背景技术中提出的问题。The object of the present invention is to provide a detection device for an electric energy meter with multiple detection methods, so as to solve the problems raised in the above-mentioned background technology.
为实现上述目的,本发明提供如下技术方案:一种具有多种检测方式的电能表检测装置,包括第一电能表、总开关和检测组件,所述第一电能表的外侧表面连接有读数盘,且读数盘的底部外侧设置有圈数走表盘,所述第一电能表的底部外侧设置有火线出线口,且火线出线口的外侧连接有火线出线,所述火线出线口右端安置有零线出线口,且零线出线口的外侧连接有零线出线,所述总开关安置于火线出线、零线出线的末端,所述检测组件连接于第一电能表的顶部外侧,所述检测组件包括连接壳体、第一吸盘座、第二吸盘座、火线出检测器、对接线、零线出检测器、钳形电流表、播报器、第二电能表、对比模块和负载组件,所述连接壳体的前部两侧设置有第一吸盘座,且连接壳体的外部两侧连接有第二吸盘座,所述连接壳体的底部外侧设置有火线出检测器,且火线出检测器的右端安置有零线出检测器,所述火线出检测器、零线出检测器外端均设置有对接线,所述连接壳体的后部外侧连接有钳形电流表,所述火线出检测器、零线出检测器电性连接有播报器,且火线出检测器、零线出检测器电性连接有对比模块,所述零线出检测器电性连接有负载组件。In order to achieve the above object, the present invention provides the following technical solutions: a detection device for electric energy meters with multiple detection methods, including a first electric energy meter, a main switch and a detection assembly, the outer surface of the first electric energy meter is connected with a reading plate , and the outside of the bottom of the reading plate is provided with a dial for the number of turns, the outside of the bottom of the first electric energy meter is provided with a live wire outlet, and the outside of the live wire outlet is connected with a live wire outlet, and the right end of the live wire outlet is arranged with a neutral wire Outlet, and the outside of the zero line outlet is connected with the zero line outlet, the main switch is arranged at the end of the live line outlet and the neutral line outlet, the detection component is connected to the top outside of the first electric energy meter, and the detection component includes The connection shell, the first suction cup seat, the second suction cup seat, the live wire output detector, the pairing wire, the neutral line output detector, the clamp ammeter, the announcer, the second electric energy meter, the comparison module and the load assembly, the connection shell The two sides of the front part of the body are provided with a first sucker seat, and the outer sides of the connecting shell are connected with a second sucker seat. A neutral line output detector is installed, and the outer ends of the live line output detector and the neutral line output detector are provided with paired wires, and a clamp ammeter is connected to the outside of the rear part of the connecting housing. The zero line output detector is electrically connected to the announcer, and the live line output detector and the neutral line output detector are electrically connected to the comparison module, and the neutral line output detector is electrically connected to the load assembly.
进一步的,所述第一吸盘座沿连接壳体的竖直中心线对称分布,且第一吸盘座与第一电能表吸附连接。Further, the first suction cup seats are distributed symmetrically along the vertical centerline of the connection housing, and the first suction cup seats are connected to the first electric energy meter by adsorption.
进一步的,所述第二吸盘座共设置有两个,且第二吸盘座与第一电能表吸附连接。Further, there are two second suction cup seats in total, and the second suction cup seats are connected to the first electric energy meter by adsorption.
进一步的,所述火线出线口与对接线电性连接,且对接线与火线出检测器电性连接。Further, the live wire outlet is electrically connected to the paired wire, and the paired wire is electrically connected to the live wire outlet detector.
进一步的,所述零线出线口与对接线电性连接,且对接线与零线出检测器电性连接。Further, the neutral line outlet is electrically connected to the paired wire, and the paired wire is electrically connected to the neutral line outlet detector.
进一步的,所述钳形电流表共设置有两个,且钳形电流表与火线出线、零线出线卡合连接。Further, there are two clamp-on ammeters in total, and the clamp-on ammeters are engaged with the outgoing line of the live line and the outgoing line of the neutral line.
进一步的,所述第二电能表通过火线出检测器、零线出检测器与第一电能表电性串联连接,且第二电能表与对比模块电性串联连接。Further, the second electric energy meter is electrically connected in series with the first electric energy meter through the live line out detector and the neutral line out detector, and the second electric energy meter is electrically connected in series with the comparison module.
进一步的,所述播报器与第二电能表电性连接,且播报器通过火线出检测器、零线出检测器与第一电能表电性连接。Further, the announcer is electrically connected to the second electric energy meter, and the announcer is electrically connected to the first electric energy meter through a live line out detector and a neutral line out detector.
进一步的,所述负载组件与零线出检测器电性连接,且负载组件的功耗为100w/h。Further, the load component is electrically connected to the zero line out detector, and the power consumption of the load component is 100w/h.
本发明提供了一种具有多种检测方式的电能表检测装置,具备以下有益效果:通过设置三种不同的检测方案,能根据实际使用情况来更改测试方案来检测电能表是否损坏,这能提升设备的使用灵活性。The invention provides an electric energy meter detection device with multiple detection methods, which has the following beneficial effects: by setting three different detection schemes, the test scheme can be changed according to the actual use conditions to detect whether the electric energy meter is damaged, which can improve Equipment flexibility.
1、本发明检测组件衔接完成后,其外部两侧的第二吸盘座能吸附在第一电能表的外部两端,而第一吸盘座能吸附在第一电能表的正表面,因第一电能表通常竖直挂载在墙体表面,通过第一吸盘座和第二吸盘座的双重吸附,能有效避免检测组件在检测过程中发生掉落,此外第一吸盘座和第二吸盘座均可通过解除外侧固定螺栓更改安置位点,这能使检测组件适应不同的电能表。1. After the connection of the detection components of the present invention is completed, the second sucker seats on both sides of the outer sides can be adsorbed on the outer two ends of the first electric energy meter, and the first sucker seats can be adsorbed on the front surface of the first electric energy meter. The electric energy meter is usually mounted vertically on the wall surface. The double adsorption of the first suction cup seat and the second suction cup seat can effectively prevent the detection component from falling during the detection process. In addition, the first suction cup seat and the second suction cup seat are both The installation position can be changed by releasing the outer fixing bolts, which enables the detection assembly to adapt to different electric energy meters.
2、本发明火线出检测器、零线出检测器可对第一电能表和总开关之间的电流量进行读取,若无电流量,则说明第一电能表运转正常,若第一电能表和总开关之间存在电流量,钳形电流表可进行工作,若钳形电流表感应到电量,则说明电量是通过火线出线和零线出线流出的,这说明火线出线和零线出线表面有其他接口通向别处,此时播报器会发出窃电信号,提醒工作人员电量被盗窃,若钳形电流表未检测到电流量,则说明第一电能表存在问题,此时播报器会发出电能表故障信号,提醒工作人员替换故障电能表,通过该方式,能有效判断电能表是否故障,同时可判断是否有人窃电,这能提升设备的检测范围和功能性。2. The live wire output detector and the zero line output detector of the present invention can read the current between the first electric energy meter and the main switch. If there is no current, it means that the first electric energy meter is operating normally. If the first electric energy There is a current between the meter and the main switch, and the clamp ammeter can work. If the clamp ammeter senses the power, it means that the power flows out through the outgoing line of the live line and the outgoing line of the neutral line. The interface leads to other places. At this time, the announcer will send out a stealing signal to remind the staff that the electricity has been stolen. If the current is not detected by the clamp ammeter, it means that there is a problem with the first electric energy meter. At this time, the announcer will issue an electric energy meter fault. Signal to remind the staff to replace the faulty energy meter. Through this method, it can effectively determine whether the energy meter is faulty, and at the same time determine whether someone is stealing electricity, which can improve the detection range and functionality of the equipment.
3、本发明火线出检测器、零线出检测器进行工作,能与第二电能表进行连通,此时通过第一电能表的电量能通过对接线进入火线出检测器、零线出检测器内侧,而经过火线出检测器、零线出检测器的电量能先进入第二电能表内侧,再从火线出线、零线出线流出,这使得第一电能表与第二电能表可同时对流通的电流量进行计算,在电流流通一定时间后,对比模块可对两个电能表的计算值进行读取,若两者计算值相近或无误,则说明电能表不存在故障,通过采用两块电能表进行数据对比,能直观的判断出电能表是否存在故障,此外该测试可在通电状态下进行,这使得该方案能方便较难断电的场景进行使用,此外工作人员可通过观察两个电能表的读数盘直观判断两者的计算电量。3. The live wire output detector and the neutral line output detector of the present invention work and can communicate with the second electric energy meter. At this time, the electric quantity passing through the first electric energy meter can enter the live wire output detector and the neutral line output detector through the paired wiring. Inner side, while the electric energy passing through the live line out detector and the neutral line out detector can first enter the inside of the second electric energy meter, and then flow out from the live line outgoing line and the neutral line outgoing line, which makes the first electric energy meter and the second electric energy meter flow simultaneously After the current flows for a certain period of time, the comparison module can read the calculated values of the two electric energy meters. If the calculated values of the two are similar or correct, it means that there is no fault in the electric energy meter. By using two electric energy By comparing the data of the energy meter, it is possible to intuitively judge whether there is a fault in the electric energy meter. In addition, the test can be carried out in the power-on state, which makes the solution convenient for use in scenarios where it is difficult to cut off the power. In addition, the staff can observe the two electric energy The reading dial of the watch can visually judge the calculated power of the two.
4、本发明对比模块可对圈数走表盘的运行圈数进行收集读取,设第一电能表的功率为3000r/千瓦时,圈数走表盘在五分钟内共旋转30r,经对比模块计算,负载组件工作五分钟消耗0.01千瓦,此时对比模块可将计算的数据代入公式P=w/t得出,负载组件的功耗为120w/h,在计算出功耗后,对比模块可将计算出的功耗值与负载组件的功耗值进行对比,负载组件功耗为100w/h,通过对比,可判断出第一电能表的统计值错误,通过该方案,能准确的判断出第一电能表的是否有误差,以及第一电能表的误差值,这能提升设备的检测精度。4. The comparison module of the present invention can collect and read the number of running laps of the lap dial. Assuming that the power of the first electric energy meter is 3000r/kWh, the lap dial rotates 30r in five minutes, calculated by the comparison module , the load component consumes 0.01 kilowatts after working for five minutes. At this time, the comparison module can substitute the calculated data into the formula P=w/t to obtain that the power consumption of the load component is 120w/h. After calculating the power consumption, the comparison module can The calculated power consumption value is compared with the power consumption value of the load component. The power consumption of the load component is 100w/h. Through comparison, it can be judged that the statistical value of the first electric energy meter is wrong. Through this scheme, it can be accurately judged Whether there is an error in the first electric energy meter, and the error value of the first electric energy meter, which can improve the detection accuracy of the equipment.
5、本发明通过设置三种不同的检测方案,能根据实际使用情况来更改测试方案来检测电能表是否损坏,这能提升设备的使用灵活性。5. By setting three different detection schemes, the present invention can change the test scheme according to the actual use situation to detect whether the electric energy meter is damaged, which can improve the flexibility of use of the equipment.
附图说明Description of drawings
图1为本发明一种具有多种检测方式的电能表检测装置的正视整体结构示意图;Fig. 1 is a front view overall structural schematic diagram of an electric energy meter detection device with multiple detection modes in the present invention;
图2为本发明一种具有多种检测方式的电能表检测装置的第一电能表整体结构示意图;2 is a schematic diagram of the overall structure of a first electric energy meter of an electric energy meter detection device having multiple detection modes in the present invention;
图3为本发明一种具有多种检测方式的电能表检测装置的检测组件正视结构示意图;Fig. 3 is a schematic diagram of the front view structure of a detection component of a detection device of an electric energy meter having multiple detection modes according to the present invention;
图4为本发明一种具有多种检测方式的电能表检测装置的火线出检测器结构示意图;Fig. 4 is a structural schematic diagram of a fire wire out detector of an electric energy meter detection device having multiple detection modes in the present invention;
图5为本发明一种具有多种检测方式的电能表检测装置的检测组件结构示意图;Fig. 5 is a schematic structural diagram of a detection component of an electric energy meter detection device with multiple detection modes according to the present invention;
图6为本发明一种具有多种检测方式的电能表检测装置的电流状态检测流程示意图;6 is a schematic diagram of a current state detection flow chart of an electric energy meter detection device having multiple detection modes according to the present invention;
图7为本发明一种具有多种检测方式的电能表检测装置的电能功耗对比检测流程示意图;Fig. 7 is a schematic diagram of the electric energy consumption comparison detection flow chart of an electric energy meter detection device with multiple detection modes in the present invention;
图8为本发明一种具有多种检测方式的电能表检测装置的功率检测流程示意图。Fig. 8 is a schematic diagram of a power detection flow chart of an electric energy meter detection device with multiple detection methods according to the present invention.
图中:1、第一电能表;2、读数盘;3、圈数走表盘;4、火线出线口;5、火线出线;6、零线出线口;7、零线出线;8、总开关;9、检测组件;901、连接壳体;902、第一吸盘座;903、第二吸盘座;904、火线出检测器;905、对接线;906、零线出检测器;907、钳形电流表;908、播报器;909、第二电能表;910、对比模块;911、负载组件。In the figure: 1. The first watt-hour meter; 2. The reading panel; 3. The lap number dial; 4. The live wire outlet; 5. The live wire outlet; 6. The neutral wire outlet; 7. The neutral wire outlet; 8. The main switch ;9, detection component; 901, connection housing; 902, the first suction cup seat; 903, the second suction cup seat; 904, live wire out detector; Ammeter; 908, announcer; 909, second electric energy meter; 910, comparison module; 911, load component.
实施方式Implementation
请参阅图1-8,本发明提供一种技术方案:一种具有多种检测方式的电能表检测装置,包括第一电能表1、总开关8和检测组件9,第一电能表1的外侧表面连接有读数盘2,且读数盘2的底部外侧设置有圈数走表盘3,第一电能表1的底部外侧设置有火线出线口4,且火线出线口4的外侧连接有火线出线5,火线出线口4右端安置有零线出线口6,且零线出线口6的外侧连接有零线出线7,总开关8安置于火线出线5、零线出线7的末端,检测组件9连接于第一电能表1的顶部外侧,检测组件9包括连接壳体901、第一吸盘座902、第二吸盘座903、火线出检测器904、对接线905、零线出检测器906、钳形电流表907、播报器908、第二电能表909、对比模块910和负载组件911,连接壳体901的前部两侧设置有第一吸盘座902,且连接壳体901的外部两侧连接有第二吸盘座903,连接壳体901的底部外侧设置有火线出检测器904,且火线出检测器904的右端安置有零线出检测器906,火线出检测器904、零线出检测器906外端均设置有对接线905,连接壳体901的后部外侧连接有钳形电流表907,火线出检测器904、零线出检测器906电性连接有播报器908,且火线出检测器904、零线出检测器906电性连接有对比模块910,零线出检测器906电性连接有负载组件911;Please refer to Fig. 1-8, the present invention provides a kind of technical solution: a kind of electric energy meter detection device with multiple detection methods, including the first electric energy meter 1, the main switch 8 and the detection assembly 9, the outside of the first electric energy meter 1 The surface is connected with a reading disk 2, and the outer bottom of the reading disk 2 is provided with a lap dial 3, and the outer bottom of the first electric energy meter 1 is provided with a live wire outlet 4, and the outer side of the live wire outlet 4 is connected with a live wire outlet 5, The right end of the live wire outlet 4 is equipped with a neutral wire outlet 6, and the outside of the neutral wire outlet 6 is connected with a neutral wire outlet 7, the main switch 8 is arranged at the ends of the live wire outlet 5 and the neutral wire outlet 7, and the detection component 9 is connected to the first On the outside of the top of an electric energy meter 1, the detection assembly 9 includes a connection housing 901, a first suction cup seat 902, a second suction cup seat 903, a live wire output detector 904, a pairing wire 905, a neutral line output detector 906, and a clamp ammeter 907 , broadcaster 908, second watt-hour meter 909, comparison module 910 and load assembly 911, first suction cup holders 902 are arranged on both sides of the front part of the connection housing 901, and second suction cups are connected to the outer sides of the connection housing 901 seat 903, a live wire output detector 904 is arranged on the outside of the bottom of the connecting housing 901, and a neutral line output detector 906 is arranged on the right end of the live wire output detector 904, and the outer ends of the live wire output detector 904 and the neutral line output detector 906 are Butt wires 905 are provided, and a clamp ammeter 907 is connected to the outside of the rear part of the connection housing 901. The live wire output detector 904 and the neutral line output detector 906 are electrically connected to the announcer 908, and the live wire output detector 904 and the neutral wire output The output detector 906 is electrically connected to the comparison module 910, and the neutral line output detector 906 is electrically connected to the load assembly 911;
具体操作如下,断开总开关8,能使火线出线5与零线出线7断电,此时将火线出线5与零线出线7从火线出线口4、零线出线口6内部分离,再将火线出线5与零线出线7分别衔接在火线出检测器904、零线出检测器906上,能使火线出线5与零线出线7与检测组件9进行衔接,在火线出线5与零线出线7固定完成后,将火线出检测器904、零线出检测器906外侧的对接线905分别与火线出线口4、零线出线口6进行衔接,便可使检测组件9与第一电能表1进行电性连接,在检测组件9衔接完成后,其外部两侧的第二吸盘座903能吸附在第一电能表1的外部两端,而第一吸盘座902能吸附在第一电能表1的正表面,因第一电能表1通常竖直挂载在墙体表面,通过第一吸盘座902和第二吸盘座903的双重吸附,能有效避免检测组件9在检测过程中发生掉落,此外第一吸盘座902和第二吸盘座903均可通过解除外侧固定螺栓更改安置位点,这能使检测组件9适应不同的电能表。The specific operation is as follows: turn off the main switch 8, so that the outgoing line 5 of the live line and the outgoing line 7 of the neutral line can be powered off. The outgoing line 5 of the live line and the outgoing line 7 of the neutral line are respectively connected to the outgoing line detector 904 of the live line and the outgoing line detector 906 of the neutral line, so that the outgoing line 5 of the live line and the outgoing line 7 of the neutral line can be connected with the detection component 9, and the outgoing line 5 of the live line and the outgoing line of the neutral line 7 After the fixing is completed, connect the connecting wire 905 on the outside of the live wire outlet detector 904 and the neutral wire outlet detector 906 with the live wire outlet 4 and the neutral wire outlet 6 respectively, so that the detection component 9 can be connected to the first electric energy meter 1 Conduct electrical connection. After the detection assembly 9 is connected, the second sucker seats 903 on both sides of the outer sides can be adsorbed on the outer two ends of the first electric energy meter 1, and the first sucker seats 902 can be adsorbed on the first electric energy meter 1. Since the first electric energy meter 1 is usually mounted vertically on the wall surface, the double adsorption of the first suction cup seat 902 and the second suction cup seat 903 can effectively prevent the detection component 9 from falling during the detection process. In addition, both the first suction cup seat 902 and the second suction cup seat 903 can change the installation positions by releasing the outer fixing bolts, which can make the detection assembly 9 adapt to different electric energy meters.
请参阅图1-6第一吸盘座902沿连接壳体901的竖直中心线对称分布,且第一吸盘座902与第一电能表1吸附连接,第二吸盘座903共设置有两个,且第二吸盘座903与第一电能表1吸附连接,火线出线口4与对接线905电性连接,且对接线905与火线出检测器904电性连接,零线出线口6与对接线905电性连接,且对接线905与零线出检测器906电性连接,钳形电流表907共设置有两个,且钳形电流表907与火线出线5、零线出线7卡合连接;Please refer to Figure 1-6. The first suction cup base 902 is distributed symmetrically along the vertical center line of the connection housing 901, and the first suction cup base 902 is connected to the first electric energy meter 1 by adsorption. There are two second suction cup bases 903 in total. And the second suction cup seat 903 is connected to the first electric energy meter 1 by adsorption, the live wire outlet 4 is electrically connected to the paired wire 905, and the paired wire 905 is electrically connected to the live wire output detector 904, and the neutral wire outlet 6 is connected to the paired wire 905 Electrically connected, and the connecting wire 905 is electrically connected with the zero line outlet detector 906, and there are two clamp ammeters 907, and the clamp ammeter 907 is engaged with the outgoing line 5 of the live line and the outgoing line 7 of the neutral line;
具体操作如下,实施例一:Concrete operation is as follows, embodiment one:
旋转钳形电流表907,能使钳形电流表907通过与连接壳体901衔接处的转轴进行旋转,这使得钳形电流表907能靠近火线出线5和零线出线7,并对两者进行夹持,此时将总开关8进行断开,因火线出检测器904、零线出检测器906通过对接线905、火线出线5和零线出线7连接第一电能表1和总开关8,这使得火线出检测器904、零线出检测器906可对第一电能表1和总开关8之间的电流量进行读取,若无电流量,则说明第一电能表1运转正常,若第一电能表1和总开关8之间存在电流量,钳形电流表907可进行工作,若钳形电流表907感应到电量,则说明电量是通过火线出线5和零线出线7流出的,而此时总开关8处于关闭状态,这说明火线出线5和零线出线7表面有其他接口通向别处,此时播报器908会发出窃电信号,提醒工作人员电量被盗窃,此时工作人员只需沿着火线出线5和零线出线7寻找额外接口即可排除窃电问题,若钳形电流表907未检测到电流量,则说明第一电能表1存在问题,此时播报器908会发出电能表故障信号,提醒工作人员替换故障电能表,通过该方式,能有效判断电能表是否故障,同时可判断是否有人窃电,这能提升设备的检测范围和功能性。Rotating the clamp ammeter 907 can make the clamp ammeter 907 rotate through the rotating shaft connected with the connection housing 901, which makes the clamp ammeter 907 close to the outgoing line 5 of the live line and the outgoing line 7 of the neutral line, and clamps both, At this time, the main switch 8 is disconnected, because the detector 904 of the live wire and the detector 906 of the neutral wire are connected to the first electric energy meter 1 and the main switch 8 by connecting the wiring 905, the outgoing wire 5 of the live wire and the outgoing wire 7 of the neutral wire, which makes the live wire Out detector 904 and neutral line out detector 906 can read the amount of current between the first electric energy meter 1 and the main switch 8. If there is no current amount, it means that the first electric energy meter 1 is operating normally. If the first electric energy meter There is a current between meter 1 and the main switch 8, and the clamp ammeter 907 can work. If the clamp ammeter 907 senses the electricity, it means that the electricity flows out through the outgoing line 5 of the live line and the outgoing line 7 of the neutral line. At this time, the main switch 8 is in the closed state, which means that there are other interfaces on the surface of the outgoing line 5 of the live line and the outgoing line 7 of the neutral line leading to other places. At this time, the announcer 908 will send out a power stealing signal to remind the staff that the power is stolen. At this time, the staff only need to follow the live line The problem of power theft can be ruled out by looking for additional interfaces for outgoing line 5 and neutral line outgoing line 7. If the clamp ammeter 907 does not detect the amount of current, it means that there is a problem with the first electric energy meter 1. At this time, the broadcaster 908 will send out a fault signal of the electric energy meter. Remind the staff to replace the faulty energy meter. In this way, it can effectively determine whether the energy meter is faulty, and at the same time determine whether someone has stolen electricity, which can improve the detection range and functionality of the equipment.
请参阅图1和图7,第二电能表909通过火线出检测器904、零线出检测器906与第一电能表1电性串联连接,第二电能表909与对比模块910电性串联连接,播报器908与第二电能表909电性连接,且播报器908通过火线出检测器904、零线出检测器906与第一电能表1电性连接;Please refer to FIG. 1 and FIG. 7 , the second electric energy meter 909 is electrically connected in series with the first electric energy meter 1 through the live line out detector 904 and the neutral line out detector 906 , and the second electric energy meter 909 is electrically connected in series with the comparison module 910 , the announcer 908 is electrically connected to the second electric energy meter 909, and the announcer 908 is electrically connected to the first electric energy meter 1 through the live line out detector 904 and the neutral line out detector 906;
具体操作如下,实施例二:Concrete operation is as follows, embodiment two:
火线出检测器904、零线出检测器906进行工作,能与第二电能表909进行连通,此时通过第一电能表1的电量能通过对接线905进入火线出检测器904、零线出检测器906内侧,而经过火线出检测器904、零线出检测器906的电量能先进入第二电能表909内侧,再从火线出线5、零线出线7流出,这使得第一电能表1与第二电能表909可同时对流通的电流量进行计算,在电流流通一定时间后,对比模块910可对两个电能表的计算值进行读取,若两者计算值相近或无误,则说明电能表不存在故障,通过采用两块电能表进行数据对比,能直观的判断出电能表是否存在故障,此外该测试可在通电状态下进行,这使得该方案能方便较难断电的场景进行使用,此外工作人员可通过观察两个电能表的读数盘2直观判断两者的计算电量。The live wire output detector 904 and the neutral line output detector 906 work, and can communicate with the second electric energy meter 909. At this time, the electric quantity passing through the first electric energy meter 1 can enter the live wire output detector 904 and the neutral line output detector 904 through the connecting wire 905. Detector 906 inside, and the electricity that passes live wire out detector 904, zero line out detector 906 can first enter the inside of the second electric energy meter 909, and then flow out from live wire outgoing line 5, neutral line outgoing line 7, which makes the first electric energy meter 1 and the second electric energy meter 909 can simultaneously calculate the amount of current flowing. After the current flows for a certain period of time, the comparison module 910 can read the calculated values of the two electric energy meters. If the calculated values of the two electric energy meters are similar or correct, it means There is no fault in the electric energy meter. By comparing the data of two electric energy meters, it can be judged intuitively whether there is a fault in the electric energy meter. In addition, the test can be carried out in the power-on state, which makes the solution convenient for scenes that are difficult to power off. In addition, the staff can intuitively judge the calculated electric quantities of the two electric energy meters by observing the reading plates 2 of the two electric energy meters.
请参阅图1和图8,负载组件911与零线出检测器906电性连接,且负载组件911的功耗为100w/h;Please refer to FIG. 1 and FIG. 8, the load component 911 is electrically connected to the neutral line out detector 906, and the power consumption of the load component 911 is 100w/h;
具体操作如下,实施例三:Concrete operation is as follows, embodiment three:
将总开关8关闭,此时零线出检测器906对负载组件911进行供电,负载组件911工作五分钟后,零线出检测器906停止对负载组件911进行供电,而此时对比模块910可对圈数走表盘3的运行圈数进行收集读取,设第一电能表1的功率为3000r/千瓦时,圈数走表盘3在五分钟内共旋转30r,经对比模块910计算,负载组件911工作五分钟消耗0.01千瓦,此时对比模块910可将计算的数据代入公式P=w/t得出,负载组件11的功耗为120w/h,在计算出功耗后,对比模块910可将计算出的功耗值与负载组件911的功耗值进行对比,负载组件911功耗为100w/h,通过对比,可判断出第一电能表1的统计值错误,通过该方案,能准确的判断出第一电能表1的是否有误差,以及第一电能表1的误差值,这能提升设备的检测精度。Turn off the main switch 8, and at this time, the zero line out detector 906 supplies power to the load component 911. After the load component 911 works for five minutes, the zero line out detector 906 stops supplying power to the load component 911, and at this time the comparison module 910 can Collect and read the number of running circles of the circle number dial 3, assuming that the power of the first electric energy meter 1 is 3000r/kWh, the circle number dial 3 rotates 30r in five minutes, calculated by the comparison module 910, the load assembly The 911 consumes 0.01 kilowatts for five minutes of operation. At this time, the comparison module 910 can substitute the calculated data into the formula P=w/t to obtain that the power consumption of the load component 11 is 120w/h. After calculating the power consumption, the comparison module 910 can Compare the calculated power consumption value with the power consumption value of the load component 911. The power consumption of the load component 911 is 100w/h. By comparison, it can be judged that the statistical value of the first electric energy meter 1 is wrong. Through this scheme, it can be accurately It can be judged whether there is an error in the first electric energy meter 1 and the error value of the first electric energy meter 1, which can improve the detection accuracy of the equipment.
综上,该具有多种检测方式的电能表检测装置,使用时,首先断开总开关8,使火线出线5与零线出线7断电,此时将火线出线5与零线出线7从火线出线口4、零线出线口6内部分离,再将火线出线5与零线出线7分别衔接在火线出检测器904、零线出检测器906上,使火线出线5与零线出线7与检测组件9进行衔接,在火线出线5与零线出线7固定完成后,将火线出检测器904、零线出检测器906外侧的对接线905分别与火线出线口4、零线出线口6进行衔接,便可使检测组件9与第一电能表1进行电性连接;To sum up, when using the electric energy meter detection device with multiple detection methods, the main switch 8 is first turned off, so that the outgoing line 5 of the live line and the outgoing line 7 of the neutral line are powered off, and at this time, the outgoing line 5 of the live line and the outgoing line 7 of the neutral line The wire outlet 4 and the zero wire outlet 6 are internally separated, and then the live wire outlet 5 and the neutral wire outlet 7 are respectively connected to the live wire outlet detector 904 and the neutral wire outlet detector 906, so that the live wire outlet 5 and the neutral wire outlet 7 are connected to the detection Components 9 are connected, and after the live wire outlet 5 and the neutral wire outlet 7 are fixed, connect the connecting wire 905 on the outside of the live wire outlet detector 904 and the neutral wire outlet detector 906 with the live wire outlet 4 and the neutral wire outlet 6 respectively. , the detection component 9 can be electrically connected with the first electric energy meter 1;
然后在检测组件9衔接完成后,其外部两侧的第二吸盘座903能吸附在第一电能表1的外部两端,而第一吸盘座902能吸附在第一电能表1的正表面,因第一电能表1通常竖直挂载在墙体表面,通过第一吸盘座902和第二吸盘座903的双重吸附,能有效避免检测组件9在检测过程中发生掉落,此外第一吸盘座902和第二吸盘座903均可通过解除外侧固定螺栓更改安置位点,这能使检测组件9适应不同的电能表;Then, after the connection of the detection assembly 9 is completed, the second suction cup holders 903 on both sides of the outer sides can be adsorbed on the outer two ends of the first electric energy meter 1, and the first suction cup holders 902 can be adsorbed on the front surface of the first electric energy meter 1, Because the first electric energy meter 1 is usually vertically mounted on the wall surface, the double adsorption of the first suction cup seat 902 and the second suction cup seat 903 can effectively prevent the detection component 9 from falling during the detection process. In addition, the first suction cup Both the seat 902 and the second suction cup seat 903 can change the placement position by releasing the outer fixing bolts, which can make the detection assembly 9 adapt to different electric energy meters;
接着旋转钳形电流表907,能使钳形电流表907通过与连接壳体901衔接处的转轴进行旋转,这使得钳形电流表907能靠近火线出线5和零线出线7,并对两者进行夹持,此时将总开关8进行断开,因火线出检测器904、零线出检测器906通过对接线905、火线出线5和零线出线7连接第一电能表1和总开关8,这使得火线出检测器904、零线出检测器906可对第一电能表1和总开关8之间的电流量进行读取,若无电流量,则说明第一电能表1运转正常,若第一电能表1和总开关8之间存在电流量,钳形电流表907可进行工作,若钳形电流表907感应到电量,则说明电量是通过火线出线5和零线出线7流出的,而此时总开关8处于关闭状态,这说明火线出线5和零线出线7表面有其他接口通向别处,此时播报器908会发出窃电信号,提醒工作人员电量被盗窃,此时工作人员只需沿着火线出线5和零线出线7寻找额外接口即可排除窃电问题,若钳形电流表907未检测到电流量,则说明第一电能表1存在问题,此时播报器908会发出电能表故障信号,提醒工作人员替换故障电能表,通过该方式,能有效判断电能表是否故障,同时可判断是否有人窃电,这能提升设备的检测范围和功能性;Then rotate the ammeter clamp 907 to make the ammeter clamp 907 rotate through the rotating shaft connected with the housing 901, which makes the ammeter clamp 907 close to the outgoing line 5 of the live line and the outgoing line 7 of the neutral line, and clamp the two At this time, the main switch 8 is disconnected, because the live wire output detector 904 and the neutral line output detector 906 are connected to the first electric energy meter 1 and the main switch 8 through the connecting line 905, the live wire outgoing line 5 and the neutral line outgoing line 7, which makes The live line out detector 904 and the neutral line out detector 906 can read the amount of current between the first watt-hour meter 1 and the main switch 8. If there is no amount of current, it means that the first watt-hour meter 1 is operating normally. There is a current between the electric energy meter 1 and the main switch 8, and the clamp ammeter 907 can work. If the clamp ammeter 907 senses the electricity, it means that the electricity flows out through the outgoing line 5 of the live line and the outgoing line 7 of the neutral line. The switch 8 is in the closed state, which means that there are other interfaces on the surface of the outgoing line 5 of the live line and the outgoing line 7 of the neutral line leading to other places. At this time, the announcer 908 will send out a stealing signal to remind the staff that the power is stolen. At this time, the staff only need to follow the The problem of power theft can be ruled out by looking for additional interfaces on the outgoing line 5 of the live line and the outgoing line 7 of the neutral line. If the current is not detected by the clamp ammeter 907, it means that there is a problem with the first electric energy meter 1. At this time, the announcer 908 will send out a fault signal of the electric energy meter , to remind the staff to replace the faulty electric energy meter. Through this method, it can effectively judge whether the electric energy meter is faulty, and at the same time, it can be judged whether someone is stealing electricity, which can improve the detection range and functionality of the equipment;
随后火线出检测器904、零线出检测器906进行工作,能与第二电能表909进行连通,此时通过第一电能表1的电量能通过对接线905进入火线出检测器904、零线出检测器906内侧,而经过火线出检测器904、零线出检测器906的电量能先进入第二电能表909内侧,再从火线出线5、零线出线7流出,这使得第一电能表1与第二电能表909可同时对流通的电流量进行计算,在电流流通一定时间后,对比模块910可对两个电能表的计算值进行读取,若两者计算值相近或无误,则说明电能表不存在故障,通过采用两块电能表进行数据对比,能直观的判断出电能表是否存在故障,此外该测试可在通电状态下进行,这使得该方案能方便较难断电的场景进行使用,此外工作人员可通过观察两个电能表的读数盘2直观判断两者的计算电量;Then the live wire output detector 904 and the neutral line output detector 906 work, and can be communicated with the second electric energy meter 909. At this time, the electric quantity passed through the first electric energy meter 1 can enter the live wire output detector 904 and the neutral line through the connecting line 905. out of the detector 906, and the electricity through the live wire out detector 904 and the neutral wire out detector 906 can first enter the inside of the second electric energy meter 909, and then flow out from the live wire outgoing line 5 and the neutral line outgoing line 7, which makes the first electric energy meter 1 and the second electric energy meter 909 can simultaneously calculate the amount of current flowing. After the current flows for a certain period of time, the comparison module 910 can read the calculated values of the two electric energy meters. If the calculated values of the two electric energy meters are similar or correct, then It shows that there is no fault in the electric energy meter. By comparing the data of two electric energy meters, it can be intuitively judged whether there is a fault in the electric energy meter. In addition, the test can be carried out in the power-on state, which makes this solution convenient for scenes that are difficult to power off. In addition, the staff can visually judge the calculated power of the two electric energy meters by observing the reading plates 2 of the two electric energy meters;
最后将总开关8关闭,此时零线出检测器906对负载组件911进行供电,负载组件911工作五分钟后,零线出检测器906停止对负载组件911进行供电,而此时对比模块910可对圈数走表盘3的运行圈数进行收集读取,当前检测的第一电能表1的功率为3000r/千瓦时,圈数走表盘3在五分钟内共旋转30r,经对比模块910计算,负载组件911工作五分钟消耗0.01千瓦,此时对比模块910可将计算的数据代入公式P=w/t得出,负载组件11的功耗为120w/h,在计算出功耗后,对比模块910可将计算出的功耗值与负载组件911的功耗值进行对比,负载组件911功耗为100w/h,通过对比,可判断出第一电能表1的统计值错误,通过该方案,能准确的判断出第一电能表1的是否有误差,以及第一电能表1的误差值,这能提升设备的检测精度。Finally, the main switch 8 is turned off. At this time, the zero line output detector 906 supplies power to the load assembly 911. After the load assembly 911 has been working for five minutes, the zero line output detector 906 stops supplying power to the load assembly 911. At this time, the comparison module 910 It can collect and read the number of running circles of the circle number dial 3. The power of the first electric energy meter 1 currently detected is 3000r/kWh, and the circle number dial 3 rotates 30r in total within five minutes, which is calculated by the comparison module 910 , the load component 911 consumes 0.01 kilowatts for five minutes of work. At this time, the comparison module 910 can substitute the calculated data into the formula P=w/t to obtain that the power consumption of the load component 11 is 120w/h. After calculating the power consumption, compare The module 910 can compare the calculated power consumption value with the power consumption value of the load component 911. The power consumption of the load component 911 is 100w/h. Through the comparison, it can be judged that the statistical value of the first electric energy meter 1 is wrong. Through this scheme , can accurately determine whether there is an error in the first electric energy meter 1, and the error value of the first electric energy meter 1, which can improve the detection accuracy of the equipment.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524784.4A CN114200384B (en) | 2021-12-14 | 2021-12-14 | An electric energy meter detection device with multiple detection methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111524784.4A CN114200384B (en) | 2021-12-14 | 2021-12-14 | An electric energy meter detection device with multiple detection methods |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114200384A CN114200384A (en) | 2022-03-18 |
| CN114200384B true CN114200384B (en) | 2023-08-29 |
Family
ID=80653405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111524784.4A Active CN114200384B (en) | 2021-12-14 | 2021-12-14 | An electric energy meter detection device with multiple detection methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114200384B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115774149B (en) * | 2023-02-10 | 2023-05-23 | 河北悦贝电力工程有限公司 | Intelligent electric power anti-theft device based on data comparison |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013250076A (en) * | 2012-05-30 | 2013-12-12 | Kansai Electric Power Co Inc:The | Inspection system for electronic watt-hour meter, and inspection method |
| WO2014027318A1 (en) * | 2012-08-17 | 2014-02-20 | Reliance Infrastructure Ltd. | Meter testing device |
| CN103645456A (en) * | 2013-11-20 | 2014-03-19 | 广东电网公司电力科学研究院 | Visualized user experience energy meter calibrator |
| CN104360140A (en) * | 2014-11-28 | 2015-02-18 | 威胜集团有限公司 | Single-phase watt-hour meter null line current measuring method and circuit |
| CN105510868A (en) * | 2015-12-21 | 2016-04-20 | 国网四川省电力公司电力科学研究院 | Smart electric meter electricity-selling communication detection system |
| CN106383331A (en) * | 2016-10-27 | 2017-02-08 | 宁波三星医疗电气股份有限公司 | Single-phase watt-hour meter debugging and inspecting integrated device and method thereof |
| CN106443560A (en) * | 2016-09-22 | 2017-02-22 | 国家电网公司 | Judgment method for faults of current detection circuits of electric energy meters of residents |
| CN106771450A (en) * | 2017-02-28 | 2017-05-31 | 国网天津市电力公司 | User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection |
| CN108120950A (en) * | 2018-01-29 | 2018-06-05 | 宁波三星医疗电气股份有限公司 | A kind of line electric energy meter detection metering system off zero and method |
| CN208350982U (en) * | 2018-07-10 | 2019-01-08 | 国网黑龙江省电力有限公司电力科学研究院 | A kind of detection device of electric energy meter under cryogenic conditions |
| CN110231504A (en) * | 2019-07-09 | 2019-09-13 | 国网河北省电力有限公司邢台供电分公司 | Detect the method and stealing detection device of electricity stealing |
| CN110515028A (en) * | 2019-08-23 | 2019-11-29 | 宁波迦南智能电气股份有限公司 | A kind of single-phase electric energy meter terminal fever monitoring method |
| CN112526442A (en) * | 2020-12-02 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Power grid abnormity simulation test system for electric energy meter test |
| CN112526441A (en) * | 2020-11-30 | 2021-03-19 | 国网北京市电力公司 | Multifunctional integrated direct current electric energy calibrating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2209011A1 (en) * | 2007-10-17 | 2010-07-21 | Jiasheng Wan | A modular electronic energy meter |
-
2021
- 2021-12-14 CN CN202111524784.4A patent/CN114200384B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013250076A (en) * | 2012-05-30 | 2013-12-12 | Kansai Electric Power Co Inc:The | Inspection system for electronic watt-hour meter, and inspection method |
| WO2014027318A1 (en) * | 2012-08-17 | 2014-02-20 | Reliance Infrastructure Ltd. | Meter testing device |
| CN103645456A (en) * | 2013-11-20 | 2014-03-19 | 广东电网公司电力科学研究院 | Visualized user experience energy meter calibrator |
| CN104360140A (en) * | 2014-11-28 | 2015-02-18 | 威胜集团有限公司 | Single-phase watt-hour meter null line current measuring method and circuit |
| CN105510868A (en) * | 2015-12-21 | 2016-04-20 | 国网四川省电力公司电力科学研究院 | Smart electric meter electricity-selling communication detection system |
| CN106443560A (en) * | 2016-09-22 | 2017-02-22 | 国家电网公司 | Judgment method for faults of current detection circuits of electric energy meters of residents |
| CN106383331A (en) * | 2016-10-27 | 2017-02-08 | 宁波三星医疗电气股份有限公司 | Single-phase watt-hour meter debugging and inspecting integrated device and method thereof |
| CN106771450A (en) * | 2017-02-28 | 2017-05-31 | 国网天津市电力公司 | User's electric energy meter is opposed electricity-stealing the detection method and situ metrology check device of inspection |
| CN108120950A (en) * | 2018-01-29 | 2018-06-05 | 宁波三星医疗电气股份有限公司 | A kind of line electric energy meter detection metering system off zero and method |
| CN208350982U (en) * | 2018-07-10 | 2019-01-08 | 国网黑龙江省电力有限公司电力科学研究院 | A kind of detection device of electric energy meter under cryogenic conditions |
| CN110231504A (en) * | 2019-07-09 | 2019-09-13 | 国网河北省电力有限公司邢台供电分公司 | Detect the method and stealing detection device of electricity stealing |
| CN110515028A (en) * | 2019-08-23 | 2019-11-29 | 宁波迦南智能电气股份有限公司 | A kind of single-phase electric energy meter terminal fever monitoring method |
| CN112526441A (en) * | 2020-11-30 | 2021-03-19 | 国网北京市电力公司 | Multifunctional integrated direct current electric energy calibrating device |
| CN112526442A (en) * | 2020-12-02 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Power grid abnormity simulation test system for electric energy meter test |
Non-Patent Citations (1)
| Title |
|---|
| 电子式多功能电能表的检定与运行管理;潘晓燕;安徽电气工程职业技术学院学报;第13卷(第1期);第60-63页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114200384A (en) | 2022-03-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102087352B (en) | Three-phase intelligent watt-hour meter inspection device and method | |
| CN201867490U (en) | Calibration device for multiepitope standard electric energy meters | |
| CN201993462U (en) | Three-phase intelligent electric energy meter checking device | |
| CN105572622B (en) | A pluggable plug-in compatible electric energy meter verification method and device | |
| CN114200384B (en) | An electric energy meter detection device with multiple detection methods | |
| KR20140003840U (en) | Portable metering error of the test device | |
| CN205861870U (en) | Emergency lighting centrally connected power source comprehensive automation detecting system | |
| CN202563077U (en) | Detector for electric energy metering apparatus | |
| CN103645415A (en) | Practical method of inspecting electric energy metering device wiring in charged mode | |
| CN102621519A (en) | Tester for electric energy metering device | |
| CN112269038A (en) | A method for measuring and verifying the gun head of an AC charging pile | |
| CN201335870Y (en) | DC circuit fault detection system | |
| CN207528855U (en) | A kind of small-sized SCR wiring harness tests equipment | |
| CN110579676A (en) | An automatic polarity detection device | |
| CN210465622U (en) | Portable electromagnetic relay detection device | |
| CN202548319U (en) | Test device of power consumption of electric energy meter | |
| CN208520983U (en) | A kind of metering device on-site calibrator | |
| CN102608560A (en) | Detection device for measuring accuracy of electric energy meter | |
| CN201532552U (en) | Miniature measuring and controlling device for water purification machine | |
| CN110568392A (en) | An on-site calibrator for metering devices | |
| CN205844441U (en) | Detection device is run in a kind of power equipment lost territory | |
| CN102109591B (en) | Method and device for detecting particularity of multi-user electric energy meter | |
| CN2347182Y (en) | Watt-hour meter wiring tester | |
| CN115184803A (en) | Off-line testing device and testing method | |
| CN211086578U (en) | Three-phase electric energy meter field calibrator connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |