CN203745638U - Novel short connection insert block used for secondary terminal bar of voltage transformer - Google Patents
Novel short connection insert block used for secondary terminal bar of voltage transformer Download PDFInfo
- Publication number
- CN203745638U CN203745638U CN201320736025.9U CN201320736025U CN203745638U CN 203745638 U CN203745638 U CN 203745638U CN 201320736025 U CN201320736025 U CN 201320736025U CN 203745638 U CN203745638 U CN 203745638U
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- China
- Prior art keywords
- voltage transformer
- secondary terminal
- terminal bar
- short connection
- insert block
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- Expired - Lifetime
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- 238000013461 design Methods 0.000 claims description 3
- 238000012360 testing method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Transformers For Measuring Instruments (AREA)
Abstract
The utility model provides a novel short connection insert block used for a secondary terminal bar of a voltage transformer. The novel short connection insert block is designed for the secondary terminal bar of the voltage transformer. The secondary terminal bar is provided with jacks arranged uniformly and connected with lead-out leads. The short connection insert block is characterized by comprising a cuboid conducting rod; conducting pins are arranged on a side of the cuboid conducting rod uniformly from top down; the distance between each two conducting pins is identical to the distance between each two jacks in the secondary terminal bar. The length and the diameter of each conducting pin are matched to the size of each hole in the secondary terminal bar. By adopting the novel short connection insert block provided by the utility model, short connection speed of the secondary terminal bar of the voltage transformer can be improved substantially and time required for metering characteristics of the voltage transformer (110kV and above) can be reduced by about 30%. Therefore, time cost can be reduced effectively and working efficiency is improved.
Description
Technical field
The utility model belongs to Electric Energy Metering Technology field, particularly a kind of novel voltage mutual inductor secondary terminals row shorting stub inserted block.
Background technology
In 110kV and above voltage transformer (VT) field-checking; according to the requirement of measurement verification regulations; need to be at the primary side of the voltage transformer (VT) rated primary voltage of 1.15 times in addition; therefore in voltage transformer (VT) primary circuit, can produce a certain amount of electric current; and when voltage reaches 1.15 times of rated voltage, the electric current in primary circuit can cause the voltage transformer (VT) in primary circuit in the situation that secondary side is opened a way, to produce the superpotential that is enough to destroy its level of becoming attached to conventionally.Similar with voltage transformer test, current transformer test need to be by the electric current (traditional calibration method) of 1.2 times of rated current in primary circuit, its electric current is larger than voltage transformer test, the harmfulness that open circuit of secondary loop of current transformer produces is larger, may the damage of generation equipment and even human casualty accident when serious.Therefore, in test must will test the secondary circuit short circuit of current transformer in primary circuit, thereby to prevent that producing in test superpotential causes secondary insulating to destroy.
Current test method is, at the current transformer terminal row place that needs second short circuit, with common both-end shorting stub by each winding short circuit one by one.But owing to being connected to the current transformer of many different purposes in common primary circuit, every current transformer has again a plurality of different windings, therefore need the secondary terminals quantity of short circuit very large, currently used method expends for a long time, and the secondary circuit short circuit time accounts for 45% left and right of total Test time conventionally.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, and proposes a kind of novel voltage mutual inductor secondary terminals row shorting stub inserted block.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of novel voltage mutual inductor secondary terminals row shorting stub inserted block, this shorting stub inserted block is to design for voltage transformer secondary terminal row, on secondary terminals row, be shaped with the jack that even system is arranged, jack with draw wire and be connected, it is characterized in that: this shorting stub inserted block comprises rectangular parallelepiped contact rod, a side at rectangular parallelepiped contact rod is evenly shaped with conductive pin from top to bottom, described every spacing between conductive pin is between two identical with the upper jack distance of secondary terminals row, and the size of the length of conductive pin and diameter and the upper jack of secondary terminals row matches.
And the number of described conductive pin is identical with the jack number on voltage transformer secondary terminal row.
And the contact rod surface of tossing about in upper and lower end parts and the conductive pin of described rectangular parallelepiped contact rod is bonded with electro-insulating rubber layer.
Advantage of the present utility model and good effect are
1, the utility model will greatly improve Current Transformer Secondary terminal row short circuit speed, and 110kV and above voltage transformer (VT) meter characteristic test required time are reduced to approximately 30%, and the cost that effectively saves time, increases work efficiency.
2, the utility model is rational in infrastructure, uses safety, has improved the security of experiment.
Accompanying drawing explanation
Fig. 1 is the structural representation of voltage transformer secondary terminal row;
Fig. 2 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is implemented to be further described, following examples are descriptive, are not determinate, can not limit protection domain of the present utility model with this.
A kind of novel voltage mutual inductor secondary terminals row shorting stub inserted block, as shown in Figure 1, shorting stub inserted block is to design for voltage transformer secondary terminal row 1, on secondary terminals row, be shaped with the jack 2 that even system is arranged, jack with draw wire 3 and be connected, this shorting stub inserted block comprises rectangular parallelepiped contact rod 5, a side at rectangular parallelepiped contact rod is evenly shaped with conductive pin 6 from top to bottom, spacing between described every two conductive pin is identical with the upper jack distance of secondary terminals row, and the size of the length of conductive pin and aperture and the upper jack of secondary terminals row matches.
In concrete enforcement of the present utility model, the number of described conductive pin is identical with the jack number on voltage transformer secondary terminal row.
In concrete enforcement of the present utility model, the contact rod surface of tossing about in upper and lower end parts and the conductive pin of described rectangular parallelepiped contact rod is bonded with electro-insulating rubber layer 4.
Claims (3)
1. a novel voltage mutual inductor secondary terminals is arranged shorting stub inserted block, this shorting stub inserted block is to design for voltage transformer secondary terminal row, on secondary terminals row, be shaped with the jack that even system is arranged, jack with draw wire and be connected, it is characterized in that: this shorting stub inserted block comprises rectangular parallelepiped contact rod, a side at rectangular parallelepiped contact rod is evenly shaped with conductive pin from top to bottom, spacing between described every two conductive pin is identical with the upper jack distance of secondary terminals row, and the size of the length of conductive pin and diameter and the upper jack of secondary terminals row matches.
2. novel voltage mutual inductor secondary terminals row shorting stub inserted block according to claim 1, is characterized in that: the number of described conductive pin is identical with the jack number on voltage transformer secondary terminal row.
3. novel voltage mutual inductor secondary terminals row shorting stub inserted block according to claim 1, is characterized in that: the contact rod surface of tossing about in upper and lower end parts and the conductive pin of described rectangular parallelepiped contact rod is bonded with electro-insulating rubber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736025.9U CN203745638U (en) | 2013-11-20 | 2013-11-20 | Novel short connection insert block used for secondary terminal bar of voltage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320736025.9U CN203745638U (en) | 2013-11-20 | 2013-11-20 | Novel short connection insert block used for secondary terminal bar of voltage transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203745638U true CN203745638U (en) | 2014-07-30 |
Family
ID=51345422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320736025.9U Expired - Lifetime CN203745638U (en) | 2013-11-20 | 2013-11-20 | Novel short connection insert block used for secondary terminal bar of voltage transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203745638U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717330A (en) * | 2014-12-04 | 2016-06-29 | 上海西门子线路保护系统有限公司 | Dielectric test connection device for low voltage switch |
| CN107271730A (en) * | 2017-06-19 | 2017-10-20 | 国网辽宁省电力有限公司抚顺供电公司 | Transformer station's phoenix terminal block secondary circuit tests special magnetic suction type plug |
| CN109270306A (en) * | 2018-11-01 | 2019-01-25 | 内蒙古电力(集团)有限责任公司乌海电业局 | A kind of High-voltage measuring box pressure test ground connection combination row |
-
2013
- 2013-11-20 CN CN201320736025.9U patent/CN203745638U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717330A (en) * | 2014-12-04 | 2016-06-29 | 上海西门子线路保护系统有限公司 | Dielectric test connection device for low voltage switch |
| CN107271730A (en) * | 2017-06-19 | 2017-10-20 | 国网辽宁省电力有限公司抚顺供电公司 | Transformer station's phoenix terminal block secondary circuit tests special magnetic suction type plug |
| CN109270306A (en) * | 2018-11-01 | 2019-01-25 | 内蒙古电力(集团)有限责任公司乌海电业局 | A kind of High-voltage measuring box pressure test ground connection combination row |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |