CN205003236U - Inspect device of high -pressure energy metering equipment wiring - Google Patents
Inspect device of high -pressure energy metering equipment wiring Download PDFInfo
- Publication number
- CN205003236U CN205003236U CN201520781869.4U CN201520781869U CN205003236U CN 205003236 U CN205003236 U CN 205003236U CN 201520781869 U CN201520781869 U CN 201520781869U CN 205003236 U CN205003236 U CN 205003236U
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- electric energy
- energy meter
- voltage
- current
- transformer
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- 238000005259 measurement Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract 2
- 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
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- Measurement Of Current Or Voltage (AREA)
Abstract
The utility model discloses an inspect device of high -pressure energy metering equipment wiring, it relates to high -tension electricity ability technical field, the ua of electric energy meter, ub, the punishment of uc terminal do not insert three -phase sinusoidal ac and press, and are connected with voltage transformer, and voltage transformer passes through load side's earth connection ground connection and form the current loop on high -pressure generating line, installs current transformer on the high -pressure generating line, and current transformer is connected with ua, the uc terminal of electric energy meter respectively, the utility model discloses a whether apply lower sinusoidal ac pressure at the electric energy meter end, read the secondary current who flows in the electric energy meter, draw the voltage and the electric current phasor diagram of electric energy meter end, it can work a telephone switchboard correctly by metering device to determine the high -tension electricity.
Description
Technical field
The utility model relates to a kind of device checking the wiring of high-voltage electric energy measurement equipment, belongs 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.
Utility model content
For the problems referred to above, the technical problems to be solved in the utility model 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 utility model, 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.
The beneficial effects of the utility model are:
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 utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly understand, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these describe just exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring concept of the present utility model.
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 utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model 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 |
|---|---|---|---|
| CN201520781869.4U CN205003236U (en) | 2015-10-10 | 2015-10-10 | Inspect device of high -pressure energy metering equipment wiring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520781869.4U CN205003236U (en) | 2015-10-10 | 2015-10-10 | Inspect device of high -pressure energy metering equipment wiring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205003236U true CN205003236U (en) | 2016-01-27 |
Family
ID=55160119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520781869.4U Expired - Fee Related CN205003236U (en) | 2015-10-10 | 2015-10-10 | Inspect device of high -pressure energy metering equipment wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205003236U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179465A (en) * | 2017-07-26 | 2017-09-19 | 国家电网公司 | Extra-high voltage direct-current phase selecting switching-on apparatus performance and secondary circuit site test method |
-
2015
- 2015-10-10 CN CN201520781869.4U patent/CN205003236U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107179465A (en) * | 2017-07-26 | 2017-09-19 | 国家电网公司 | Extra-high voltage direct-current phase selecting switching-on apparatus performance and secondary circuit site test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160127 |