CN105277838A - Device for checking high-voltage electric energy metering device wiring - Google Patents
Device for checking high-voltage electric energy metering device wiring Download PDFInfo
- Publication number
- CN105277838A CN105277838A CN201510651816.5A CN201510651816A CN105277838A CN 105277838 A CN105277838 A CN 105277838A CN 201510651816 A CN201510651816 A CN 201510651816A CN 105277838 A CN105277838 A CN 105277838A
- Authority
- CN
- China
- Prior art keywords
- voltage
- electric energy
- current
- terminal
- transformer
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention discloses a device for checking high-voltage electric energy metering device wiring and relates to the technical field of high-voltage electric energy. Three-phase sinusoidal AC voltage is connected to a Ua terminal, a Ub terminal and a Uc terminal of an electric energy meter, and the three terminals are connected with a voltage transformer. The voltage transformer is grounded through a grounding line on a load side and forms a current loop on a high-voltage bus. A current transformer is installed on the high-voltage bus and is connected with the Ua terminal and the Uc terminal of the electric energy meter. With the relatively-low sinusoidal AC voltage applied to the terminals of the electric energy meter, a secondary current flowing into the electric energy meter is read, a voltage and current phasor diagram is drawn to determine whether wiring of a high-voltage electric energy metering device is correct or not.
Description
Technical field
The present invention relates to a kind of device checking the wiring of high-voltage electric energy measurement equipment, belong to high voltage electric energy technical field.
Background technology
For the device of high-voltage electric energy measurement mainly a kind of high-voltage electric energy meter in prior art, it is a kind of by being connected across two alternate single-phase high voltage electric power meters of A-B and C-B, its all electron device is all operated in high-pressure side, high to reliability requirement, must have a power failure after fault and could rush to repair, and large on high-tension side power taking difficulty, reliability is difficult to ensure.
Summary of the invention
For the problems referred to above, the technical problem to be solved in the present invention is to provide a kind of device checking the wiring of high-voltage electric energy measurement equipment.
A kind of device checking the wiring of high-voltage electric energy measurement equipment of the present invention, it comprises electric energy meter, voltage transformer (VT), current transformer; Ua, Ub, Uc terminal place of electric energy meter accesses three phase sine alternating voltage respectively, and be connected with voltage transformer (VT), voltage transformer (VT) is by the ground connection of load side and form current return on high voltage bus, high voltage bus is provided with current transformer, and current transformer is connected with Ua, Uc terminal of electric energy meter respectively.
Beneficial effect of the present invention is:
1, structure is simple, and cost is low, effective, and reliability is high, easy to utilize;
2, wiring is simple, solves the wiring of conventional high-tension electric power meter complicated, secondary connect wire or cable longer, the problem that wiring not easily checks in high-tension switch cabinet installed by mutual inductor;
3, by applying lower sinusoidal voltage at electric power meter end, reading the secondary current flowing into electric energy meter, drawing the voltage and current phasor graph of electric power meter end, judging that whether high-voltage electric-energy meter wiring is correct.
Accompanying drawing explanation
For ease of illustrating, the present invention is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below by the specific embodiment shown in accompanying drawing, the present invention is described.But should be appreciated that, these describe just exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present invention.
As shown in Figure 1, this embodiment by the following technical solutions: it comprises electric energy meter, voltage transformer pt, Current Transmit; Ua, Ub, Uc terminal place of electric energy meter accesses three phase sine alternating voltage respectively, and be connected with voltage transformer pt, voltage transformer pt is by the ground connection of load side and form current return on high voltage bus, current return generation current one I1, high voltage bus is provided with Current Transmit, current transformer is connected with Ua, Uc terminal of electric energy meter respectively, and electric current one I1 is through Current Transmit generation current two I2.
The principle of work of this embodiment is: use highly sensitive milliampere level clamp on amperemeter to obtain electric current two I2 at electric power meter end, draw out the phasor graph of three phase sine alternating voltage and electric current two I2, can judge that whether the overall wiring of electric power meter is correct by the phasor graph of three phase sine alternating voltage and electric current two I2; The no-load voltage ratio of current transformer can also be drawn by the ratio of calculating current one I1 and electric current two I2.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. check a device for high-voltage electric energy measurement equipment wiring, it is characterized in that: it comprises electric energy meter, voltage transformer (VT), current transformer; Ua, Ub, Uc terminal place of electric energy meter accesses three phase sine alternating voltage respectively, and be connected with voltage transformer (VT), voltage transformer (VT) is by the ground connection of load side and form current return on high voltage bus, high voltage bus is provided with current transformer, and current transformer is connected with Ua, Uc terminal of electric energy meter respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651816.5A CN105277838A (en) | 2015-10-10 | 2015-10-10 | Device for checking high-voltage electric energy metering device wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510651816.5A CN105277838A (en) | 2015-10-10 | 2015-10-10 | Device for checking high-voltage electric energy metering device wiring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105277838A true CN105277838A (en) | 2016-01-27 |
Family
ID=55147194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510651816.5A Pending CN105277838A (en) | 2015-10-10 | 2015-10-10 | Device for checking high-voltage electric energy metering device wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105277838A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656234A (en) * | 2017-09-11 | 2018-02-02 | 国网山东省电力公司烟台供电公司 | A kind of phase three-wire three high-voltage electric-energy meter online test method and device |
| CN109917322A (en) * | 2019-04-08 | 2019-06-21 | 珠海市华优电气技术有限公司 | A kind of method of pair of electric energy metering device detection |
| CN113945881A (en) * | 2021-07-27 | 2022-01-18 | 国网浙江省电力有限公司营销服务中心 | Electric energy meter running error monitoring device in meter box |
| CN117826062A (en) * | 2023-08-31 | 2024-04-05 | 杭州鸿途智慧能源技术有限公司 | Electric quantity metering method for remote verification and calibration of electric vehicle |
-
2015
- 2015-10-10 CN CN201510651816.5A patent/CN105277838A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656234A (en) * | 2017-09-11 | 2018-02-02 | 国网山东省电力公司烟台供电公司 | A kind of phase three-wire three high-voltage electric-energy meter online test method and device |
| CN109917322A (en) * | 2019-04-08 | 2019-06-21 | 珠海市华优电气技术有限公司 | A kind of method of pair of electric energy metering device detection |
| CN113945881A (en) * | 2021-07-27 | 2022-01-18 | 国网浙江省电力有限公司营销服务中心 | Electric energy meter running error monitoring device in meter box |
| CN113945881B (en) * | 2021-07-27 | 2023-09-22 | 国网浙江省电力有限公司营销服务中心 | Electric energy meter running error monitoring device in meter box |
| CN117826062A (en) * | 2023-08-31 | 2024-04-05 | 杭州鸿途智慧能源技术有限公司 | Electric quantity metering method for remote verification and calibration of electric vehicle |
| CN117826062B (en) * | 2023-08-31 | 2024-06-07 | 杭州鸿途智慧能源技术有限公司 | Electric quantity metering method for remote verification and calibration of electric vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103840437B (en) | The quick diagnosis of power distribution network ferromagnetic resonance and singlephase earth fault and processing method | |
| CN103926469B (en) | A kind of method of testing of isolated neutral system capacitance current | |
| CN105277838A (en) | Device for checking high-voltage electric energy metering device wiring | |
| CN204330857U (en) | A kind of isolated neutral system capacitance current proving installation | |
| Yao et al. | Improved online monitoring method for transformer winding deformations based on the Lissajous graphical analysis of voltage and current | |
| CN103645415A (en) | Practical method of inspecting electric energy metering device wiring in charged mode | |
| CN204028280U (en) | A kind of secondary loop of mutual inductor failure detector | |
| CN205003236U (en) | Inspect device of high -pressure energy metering equipment wiring | |
| CN204177954U (en) | A kind of 35kV global error of high voltage energy metering installation verification system | |
| CN104698335A (en) | Method for realizing systematic debugging of high-voltage transformer substation by using low-voltage electricity | |
| CN103730879A (en) | Protection device for power utilization system of transformer substation | |
| CN203720224U (en) | Combined temporary utilized power metering box | |
| CN206541018U (en) | A kind of multipoint grounding seeking instrument of voltage transformer | |
| CN104183379A (en) | Connecting device for maintenance of secondary side of electric power current transformer | |
| CN103983853A (en) | Phase position check method of high voltage cable frogging interconnected system | |
| CN203660505U (en) | Electric system protection device for transformer substation | |
| CN105225816A (en) | A kind of current transformer with high voltage standard capacitor function | |
| CN203057004U (en) | Power supply converter capable of raising electric product power factor | |
| CN103076485A (en) | Medium-voltage power grid bus capacitance and current detection system | |
| CN203365528U (en) | Device for on-line detection of high-voltage current | |
| CN203365551U (en) | Equipment for on-line detection of alternating current high voltage insulation resistance | |
| CN205509359U (en) | Intelligent automatic supervision and control low pressure inlet wire switch board | |
| CN110780221A (en) | Electrical measurement system for source end of circuit breaker on primary and secondary fusion complete set of column | |
| CN203178476U (en) | Intelligent electric energy meter insulating property test apparatus | |
| CN111337849A (en) | Novel leakage current measuring device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |