CN205809149U - Transformer iron core grounding current on-Line Monitor Device - Google Patents
Transformer iron core grounding current on-Line Monitor Device Download PDFInfo
- Publication number
- CN205809149U CN205809149U CN201620573417.1U CN201620573417U CN205809149U CN 205809149 U CN205809149 U CN 205809149U CN 201620573417 U CN201620573417 U CN 201620573417U CN 205809149 U CN205809149 U CN 205809149U
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- China
- Prior art keywords
- housing
- cap
- circuit board
- iron core
- current
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 230000007774 longterm Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 5
- 238000012806 monitoring device Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
nullThe utility model discloses transformer iron core grounding current on-Line Monitor Device，Described cap is fixed lid and is put on housing，The two ends up and down of described housing offer corresponding through hole respectively，Described insulating sheath is positioned at housing，The two ends of this insulating sheath are respectively and fixedly installed to the through hole at the upper and lower two ends of this housing，Described current transformer is fixing to be nested with on this insulating sheath，This current transformer is Luo-coil，Described circuit board is fixedly mounted in housing，This circuit board electrically connects with current transformer，Described display screen is fixedly mounted on cap，This display screen electrically connects with circuit board，Cable inlet is offered in the lower end of this housing，On housing at this cable inlet, Waterproof cable joint is installed，The rear side of described housing is provided with mounting bracket，This utility model advantage is: monitor in real time，And can long-term stable operation，Not only measure accurately，And there is good anti-extraneous strong electromagnetic highfield interference performance.
Description
Technical field
This utility model relates to the technical field of current sensing means, more particularly to transformer grounding iron core electricity
The technical field of flow detection device.
Background technology
Power transformer is one of equipment of most critical in power system, it properly functioning be to power system security,
Reliably, the important guarantee of high-quality, economical operation.When power transformer is properly functioning, iron core must have some reliable grounds, otherwise
Iron core can produce suspended voltage over the ground or produce heating accident, serious threat transformator and the safety of electrical network.It is thus desirable to change
The earth current of depressor iron core detects, and the usual detection means of current power department is to measure transformation by clamp on amperemeter
The electric current of device down conductor.But, when using said method to detect, easily by strong electromagnetic environmental disturbances, it is impossible to more accurate
Faint earth-fault current is distinguished on ground, additionally, use, above-mentioned detection method not only step is many, operation is complicated, and can not enter
Row on-line analysis, the precision of detection and ageing the most poor.
Utility model content
The purpose of this utility model is contemplated to solve above-mentioned deficiency and provides a kind of simple in construction, reasonable in design, surveys
Accurately, anti-strong electromagnetic ability is good, the transformer iron core grounding current on-Line Monitor Device that can monitor in real time for amount.
The technical solution that this utility model uses to solve above-mentioned technical problem is as follows:
Transformer iron core grounding current on-Line Monitor Device, it mainly includes housing, cap, current transformer, insulation
Sheath, display screen and circuit board, described cap fixes lid and puts on housing, and the two ends up and down of described housing offer respectively relatively
The through hole answered, described insulating sheath is positioned at housing, and the two ends of this insulating sheath are respectively and fixedly installed to the upper and lower two ends of this housing
Through hole, described current transformer is fixing to be nested with on this insulating sheath, and this current transformer is Luo-coil, described circuit
Plate is fixedly mounted in housing, and this circuit board electrically connects with current transformer, and described display screen is fixedly mounted on cap, and this shows
Display screen electrically connects with circuit board, offers cable inlet in the lower end of this housing, and the housing at this cable inlet is provided with
Waterproof cable joint, the rear side of described housing is provided with mounting bracket.
Being provided with male half coupling on the side port face of described housing, the side surface of described cap is provided with convex with this side port of shell body face
The recessed seam that seam is corresponding, this cap is buckled on the male half coupling of housing by its recessed seam.
Mounting bracket on rear side of described housing is made up of upper backup pad and lower supporting plate, and on this upper backup pad, rotation is equipped with spiral shell
Bar.
Described housing and cap are stainless steel.
This utility model uses above-mentioned technical solution can reach to provide the benefit that: use current transformer to flow
Cross the earth current signal of iron core to be converted to analogue signal and be transferred to circuit board, transformer core current can be supervised in real time
Survey, and can long-term stable operation；This current transformer uses Luo-coil, not only measures accurately, and has outside good resisting
Boundary's strong electromagnetic highfield interference performance；The housing of this monitoring device and cap use stainless steel, have higher protection etc.
Level, adapts to the demand of outdoor life-time service.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the left view structural representation of Fig. 1.
Detailed description of the invention
Shown in Fig. 1 and Fig. 2, transformer iron core grounding current on-Line Monitor Device, it mainly includes housing 1, cap
2, current transformer 3, insulating sheath 4, display screen 5 and circuit board 6, the side port face of described housing 1 is provided with male half coupling 9, institute
The side surface stating cap 2 is provided with the recessed seam 10 corresponding with the male half coupling 9 in this housing 1 side port face, and this cap 2 is recessed by it
Seam 10 buckles on the male half coupling 9 of housing 1, and by arranging recessed seam 10 and male half coupling 9, the design using this convex-concave seam can
Play good waterproof effect.This housing 1 and cap 2 are stainless steel, have higher degree of protection, adapt to outdoor long
The demand that phase uses.The two ends up and down of described housing 1 offer corresponding through hole respectively, and described insulating sheath 4 is positioned at housing 1
In, the two ends of this insulating sheath 4 are respectively and fixedly installed to the through hole at these housing about 1 two ends, the ground connection iron core 13 of transformator
Passing in this insulating sheath 4, described current transformer 3 is fixing to be nested with on this insulating sheath 4, and this current transformer 3 is sieve
Family name's coil so that this current transformer 3 has good anti-extraneous strong electromagnetic highfield interference performance.Described circuit board 6 passes through
Pole 17 is fixedly mounted in housing 1, and this circuit board 6 uses the most common current detection technology, and this circuit board 6 leads to
Crossing the first electric wire 15 to electrically connect with current transformer 3, described display screen 5 is fixedly mounted on cap 2, and this display screen 5 is by the
Two electric wires 16 electrically connect with circuit board 6, offer cable inlet in the lower end of this housing 1, on the housing 1 at this cable inlet
Being provided with Waterproof cable joint 7, this Waterproof cable joint 7 is the most common cable installation water joint, feed cable
Accessed in housing 1 by this Waterproof cable joint 7, and electrically connect with circuit board 6, this monitoring device operationally, when electric current from
When ground connection iron core 13 flows through, this current transformer 3 is transferred to electricity after the current signal of ground connection iron core 13 is converted to analogue signal
Road plate 6, circuit board 6 will be shown on display screen 5 by the current information of ground connection iron core 13.The rear side of described housing 1 is provided with
Mounting bracket 8, the mounting bracket 8 of this housing 1 is made up of upper backup pad 11 and lower supporting plate 12, revolves and put on this upper backup pad 11
Have screw rod 18, this monitoring device by the upper backup pad 11 of this mounting bracket 8 and lower supporting plate 12 holding the master of main transformer
On body 14, and it is fixed by the screw rod 18 being located on upper backup pad 11.
Claims (4)
1. transformer iron core grounding current on-Line Monitor Device, it is characterised in that: it is mutual that it mainly includes housing, cap, electric current
Sensor, insulating sheath, display screen and circuit board, described cap fixes lid and puts on housing, and the two ends up and down of described housing are respectively
Offering corresponding through hole, described insulating sheath is positioned at housing, and the two ends of this insulating sheath are respectively and fixedly installed to this shell
The through hole at the upper and lower two ends of body, described current transformer is fixing to be nested with on this insulating sheath, and this current transformer is Roche line
Circle, described circuit board is fixedly mounted in housing, and this circuit board electrically connects with current transformer, and described display screen is fixedly mounted on
On cap, this display screen electrically connects with circuit board, offers cable inlet in the lower end of this housing, the shell at this cable inlet
Being provided with Waterproof cable joint on body, the rear side of described housing is provided with mounting bracket.
Transformer iron core grounding current on-Line Monitor Device the most according to claim 1, it is characterised in that: described housing
Be provided with male half coupling on side port face, the side surface of described cap be provided with corresponding with this side port of shell body face male half coupling recessed only
Mouthful, this cap is buckled on the male half coupling of housing by its recessed seam.
Transformer iron core grounding current on-Line Monitor Device the most according to claim 1 and 2, it is characterised in that: described shell
Mounting bracket on rear side of body is made up of upper backup pad and lower supporting plate, and on this upper backup pad, rotation is equipped with screw rod.
Transformer iron core grounding current on-Line Monitor Device the most according to claim 1 and 2, it is characterised in that: described shell
Body and cap are stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573417.1U CN205809149U (en) | 2016-06-13 | 2016-06-13 | Transformer iron core grounding current on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620573417.1U CN205809149U (en) | 2016-06-13 | 2016-06-13 | Transformer iron core grounding current on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205809149U true CN205809149U (en) | 2016-12-14 |
Family
ID=58142853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620573417.1U Active CN205809149U (en) | 2016-06-13 | 2016-06-13 | Transformer iron core grounding current on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205809149U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535587A (en) * | 2018-04-19 | 2018-09-14 | 云南电网有限责任公司曲靖供电局 | A kind of transformer connection fault testing apparatus |
| CN112599332A (en) * | 2020-11-30 | 2021-04-02 | 国网福建省电力有限公司电力科学研究院 | Iron core grounding lead structure for transformer |
-
2016
- 2016-06-13 CN CN201620573417.1U patent/CN205809149U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108535587A (en) * | 2018-04-19 | 2018-09-14 | 云南电网有限责任公司曲靖供电局 | A kind of transformer connection fault testing apparatus |
| CN112599332A (en) * | 2020-11-30 | 2021-04-02 | 国网福建省电力有限公司电力科学研究院 | Iron core grounding lead structure for transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |