CN210835210U - External load device for low-voltage metering field calibration - Google Patents
External load device for low-voltage metering field calibration Download PDFInfo
- Publication number
- CN210835210U CN210835210U CN201921594920.5U CN201921594920U CN210835210U CN 210835210 U CN210835210 U CN 210835210U CN 201921594920 U CN201921594920 U CN 201921594920U CN 210835210 U CN210835210 U CN 210835210U
- Authority
- CN
- China
- Prior art keywords
- box
- probe
- load device
- external load
- low
- 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.)
- Expired - Fee Related
Links
- 239000000523 sample Substances 0.000 claims abstract description 15
- 238000009530 blood pressure measurement Methods 0.000 claims abstract description 6
- 238000012795 verification Methods 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000007689 inspection Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 230000006399 behavior Effects 0.000 description 3
- 230000003442 weekly effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model discloses an external load device of on-spot check-up of low pressure measurement, including box, load resistance, power cord and probe, the box is the open hollow structure in upper end, is provided with the case lid that can open and shut at the last port of box, is provided with load resistance in the box, and a power cord is connected respectively at load resistance's both ends, connects a probe respectively after two power cords stretch out the box. The utility model has the advantages of simple structure and reasonable design, when the check-up, with live wire, zero line in two probe access meter boxes, with the contrast method of watt second method cooperation electric current, whether the electric energy meter surpasses the error just can audio-visually be judged or whether the user steals electricity, has greatly improved work efficiency.
Description
Technical Field
The utility model belongs to the technical field of the electric energy meter calibration, especially, relate to an external load device of on-spot calibration of low pressure measurement.
Background
The electric energy meter is used as an important metering element in electric power marketing, the function of the electric energy meter is the same as that of an electronic scale used for weighing in a supermarket, and the marketing income benefit problem of enterprises is determined accurately. A lawbreaker modifies the intelligent electric meter, and the main purpose of the modification is to enable the electric meter to count no or less electric quantity. Meanwhile, the electric energy acquisition system applied by a power supply enterprise utilizes the daily, weekly and monthly electricity acquisition functions to periodically check the electric energy loss rate (also called line loss rate) of the power supply station areas and customizes line loss assessment indexes for each power supply station area (the power supply station area assessment line loss rate with the overhead line loss insulation rate reaching 100% is 6%, and the power supply station area assessment line loss rate of the LGJ type steel core aluminum stranded wire is 9%). Through the data analysis and comparison of daily collection, weekly collection, monthly collection and purchasing and electricity sales of the centralized meter reading system, if the line loss rate is higher than 9% and is high (even reaches between 20% and 30%), under the condition, the electricity stealing behavior of the transformer area is suspected, and then special electricity inspection work is carried out on the transformer area.
The platform area special power inspection has no external header box opening inspection, firstly, whether wiring behaviors of bypassing the metering device exist or not is inspected, and secondly, whether errors exist in the electric energy meter is verified. The wiring behavior of the winding meter can be visually found by naked eyes through the box opening inspection of the wiring; however, whether the electric energy meter has errors or not can not be measured by naked eyes, and whether the electric energy meter has errors or not of low-voltage users administered in the transformer area is obtained by disassembling the electric energy meter to a measurement inspection center for batch verification. However, the batch removal of the electric energy meters has the disadvantages of large workload, large power failure area and range and easy complaint of the quality of power supply service of users.
Therefore, to avoid causing customer complaints, it is necessary to take a field verification measure.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that the electric energy meter can not carry out the on-the-spot check-up, the utility model aims at providing an external load device of low pressure measurement on-the-spot check-up.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides an external load device of on-spot check-up of low pressure measurement, includes box, load resistance, power cord and probe, and the box is the open hollow structure in upper end, is provided with the case lid that can open and shut at the last port of box, is provided with load resistance in the box, and a power cord is connected respectively at load resistance's both ends, connects a probe respectively after two power cords stretch out the box.
Furthermore, a threading hole for a power supply wire to pass through is arranged on the front end face of the box body.
Furthermore, the box body and the box cover are made of insulating materials.
Furthermore, the probe is made of a conductive material.
Further, a handle is arranged on the upper surface of the box cover.
Due to the adoption of the technical scheme, the utility model discloses following superiority has:
the utility model has the advantages of simple structure and reasonable design, when the check-up, with live wire, zero line in two probe access meter boxes, with the contrast method of watt second method cooperation electric current, whether the electric energy meter surpasses the error just can audio-visually be judged or whether the user steals electricity, has greatly improved work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: 1. a box body; 2. a box cover; 3. a load resistance; 4. threading holes; 5. a power line; 6. and (3) a probe.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1, an external load device of on-spot check-up of low pressure measurement, including box 1, load resistance 3, power cord 5 and probe 6, box 1 is the open hollow structure in upper end, box 1 is insulating material, be provided with the case lid 2 that can open and shut at the last port of box 1, be provided with load resistance 3 in box 1, a power cord 5 is connected respectively at load resistance 3's both ends, be provided with the through wires hole 4 that supplies power cord 5 to pass on the preceding terminal surface of box 1, two power cords 5 connect a probe 6 respectively after stretching out through wires hole 4 on box 1, probe 6 is electrically conductive material.
For carrying convenience, a handle is arranged on the upper surface of the box cover 2.
When the pulse lamp is used, in a meter collecting box, taking a 6-family meter box as an example, the constant of an electric energy meter is 1200imp/KWh, the two probes are connected to the outgoing line side of each user, and the pulse lamp flickers for 1 time every 4 seconds through field measurement, namely, the pulse lamp flickers for 1 turn every 4 seconds, which is similar to a watt-second method; the electric energy meter measurement is based on 12 seconds, if the pulse lamp flickers for 1 time every 4 seconds and flickers for 3 times in 12 seconds in an accumulated way, the meter can be judged to be normal without error metering, otherwise, the meter is judged to be over-error, suspected that the user has a suspected electricity trick suspicion and is used as a key inspection object;
then, carrying out actual measurement by using a current comparison method, wherein firstly, the real-time current of the electric energy meter is adjusted, secondly, the current of the wire inlet side and the current of the wire outlet side are measured by using a universal meter, and the comparison is carried out, if the meter displays that the current is 10.5A, the wire inlet side is 10.3A, the wire outlet side is 10A, and the current has no obvious error, the meter is judged to be normal in measurement; if the on-site measurement is carried out at the incoming line side of 10.3A and the outgoing line side of 3A or 5A, a very obvious current error exists, which indicates that the meter is abnormal in metering and has the suspicion of moving the meter cover or modifying the metering device, and the suspicion can be used as a key inspection object.
Usually to platform district low pressure user's batch meter calibration needs 2 days of time, and work is loaded down with trivial details and install and remove repeatedly and cause the misconnection very easily, and adopt the utility model discloses a device carries out the on-the-spot check-up, need not to install and remove the power repeatedly, takes a 9 family collection table case as an example, and an electric energy meter of on-the-spot check-up needs 20 seconds time calculations, accomplishes a collection table case electric energy meter calibration work and only needs 3 minutes to make up to the standard, cooperates the current contrast method with the watt-second method, just can audio-visual judgement metering device whether surpass the error or whether the user steals electricity, has improved work efficiency greatly.
The utility model discloses in, load resistance adopt the high-power ripple resistance that shanghai gold is electron limited company and produces.
Claims (5)
1. The utility model provides an external load device of on-spot check-up of low pressure measurement which characterized in that: including box, load resistance, power cord and probe, the box is the open hollow structure in upper end, is provided with the case lid that can open and shut at the last port of box, is provided with load resistance in the box, and a power cord is connected respectively at load resistance's both ends, and two power cords connect a probe respectively after stretching out the box.
2. The low-voltage metering field verification external load device as claimed in claim 1, wherein: the front end face of the box body is provided with a threading hole for a power supply thread to pass through.
3. The low-voltage metering field verification external load device as claimed in claim 1, wherein: the box body and the box cover are made of insulating materials.
4. The low-voltage metering field verification external load device as claimed in claim 1, wherein: the probe is made of conductive material.
5. The low-voltage metering field verification external load device as claimed in claim 1, wherein: a handle is arranged on the upper surface of the box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921594920.5U CN210835210U (en) | 2019-09-24 | 2019-09-24 | External load device for low-voltage metering field calibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921594920.5U CN210835210U (en) | 2019-09-24 | 2019-09-24 | External load device for low-voltage metering field calibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210835210U true CN210835210U (en) | 2020-06-23 |
Family
ID=71276975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921594920.5U Expired - Fee Related CN210835210U (en) | 2019-09-24 | 2019-09-24 | External load device for low-voltage metering field calibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210835210U (en) |
-
2019
- 2019-09-24 CN CN201921594920.5U patent/CN210835210U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111026927B (en) | Low-voltage transformer area running state intelligent monitoring system | |
| US9500716B2 (en) | Power monitoring systems and methods | |
| US9575101B2 (en) | Power monitoring systems and methods | |
| US20130335062A1 (en) | Power Monitoring System and Method | |
| CA2912412C (en) | Power monitoring system and method | |
| CN102928809A (en) | Electric energy metering device remote monitoring diagnostic system and working method thereof | |
| CN110703009B (en) | Abnormal analysis and processing method for line loss rate of transformer area | |
| US20170292999A1 (en) | Transformer monitoring and data analysis systems and methods | |
| CN109298379A (en) | A kind of recognition methods of the intelligent electric meter site error exception based on data monitoring | |
| CN106483397B (en) | A kind of electric energy quality detection device and measurement method of high-precision high bandwidth | |
| CN102419384A (en) | Low-voltage electric energy metering device capable of being assembled and disassembled in electrified state | |
| CN108152665A (en) | Multiplexing electric abnormality determines method and device | |
| CN110333409A (en) | The online test method of distribution transformer rated capacity | |
| CN105182022A (en) | Electric quantity depositing device and method during meter installation, power connection and exchange | |
| CN210835210U (en) | External load device for low-voltage metering field calibration | |
| CN108107313A (en) | The method that unloaded situation judges connection box of electric energy meter correctness | |
| CN113063997A (en) | Distribution transformer area line loss abnormity problem monitoring method | |
| CN209486285U (en) | The online remote verification Intelligent calibration system of electric energy metering device based on data sharing | |
| CN204479654U (en) | A kind of alternating current circuit alternating-current lightning arrestor electrification detection system | |
| CN110208600B (en) | Charging and discharging type low-voltage rapid electricity stealing identification device and use method thereof | |
| CN212275953U (en) | HPLC module with voltage measurement | |
| CN112748391B (en) | Electric energy meter online fault detection method and system based on power broadband carrier communication | |
| CN210222117U (en) | Charge-discharge type low-voltage quick electricity-stealing identification device | |
| CN204649874U (en) | A kind of platform district line loss is abnormal checks instrument | |
| CN210427688U (en) | Portable platform district decreases and decreases investigation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200623 Termination date: 20210924 |