CN107154307B - A kind of current transformer protective cover - Google Patents
A kind of current transformer protective cover Download PDFInfo
- Publication number
- CN107154307B CN107154307B CN201710548562.3A CN201710548562A CN107154307B CN 107154307 B CN107154307 B CN 107154307B CN 201710548562 A CN201710548562 A CN 201710548562A CN 107154307 B CN107154307 B CN 107154307B
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- CN
- China
- Prior art keywords
- stainless steel
- steel cage
- current transformer
- protective cover
- connection terminal
- 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.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
Abstract
The invention discloses a kind of current transformer protective covers, which is characterized in that including stainless steel cage, stainless steel cage is fixedly connected by sealing strip with observation window, is fixed with insulation board on stainless steel cage.The present invention protects the primary connection terminal of current transformer, can be improved the safe and reliable operation of current transformer to a certain extent.Glass reinforced plastic observation window has excellent UV resistant anti-aging property, can facilitate the operating condition of observation primary connection terminal；Sealing strip effectively seals primary connection terminal, has the function of good dust-proof, antifouling, moisture-proof etc.；Stainless steel cage is covered by independent two semiclosed conjunctions, easy for installation, has high mechanical strength, anti-aging and other effects, can also be prevented foreign matter and be fallen the security risk for causing short circuit to mutual inductor.
Description
Technical field
The present invention relates to a kind of current transformer protective covers, belong to technical field of electric equipment.
Background technique
Current transformer is a kind of isolated high voltage, high current is become low current, for measuring or protecting the electricity of system
Gas equipment.Current transformer is run in environment outdoors, and primary connection terminal is exposed outside, unprotect device.Its shortcoming
Be: 1, in the case where wet weather, connecting terminal is also easy to produce electro-chemical reaction, increases its contact resistance, influences mutual inductor
Accuracy；2, fall factor vulnerable to external foreign matter and form short trouble, seriously endanger the normal operation of mutual inductor.Therefore it once connects
The protection of line terminals becomes the mutual inductor safe and reliable operation key factor to be considered.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of with good dust-proof, antifouling, moisture-proof function electric current
Mutual inductor protective cover solves current current transformer and runs in environment outdoors, and primary connection terminal is exposed outside, nothing
The problem of protective device.
In order to solve the above-mentioned technical problem, the technical solution of the present invention is to provide a kind of current transformer protective cover,
It is characterised in that it includes stainless steel cage, stainless steel cage is fixedly connected by sealing strip with observation window, is fixed on stainless steel cage absolutely
Listrium.
Preferably, the stainless steel cage is equipped with card slot, and insulation board is set in card slot.
Preferably, the stainless steel cage is covered by independent two semiclosed conjunctions.
The present invention protects the primary connection terminal of current transformer, can be improved Current Mutual Inductance to a certain extent
The safe and reliable operation of device.Glass reinforced plastic observation window has excellent UV resistant anti-aging property, can facilitate observation primary connection
The operating condition of terminal；Sealing strip effectively seals primary connection terminal, has the function of good dust-proof, antifouling, moisture-proof etc.；It is stainless
Steel cage is covered by independent two semiclosed conjunctions, easy for installation, is had high mechanical strength, anti-aging and other effects, can also be prevented
Foreign matter falls the security risk that short circuit is caused to mutual inductor.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of current transformer protective cover；
Fig. 2 is the top view of Fig. 1；
Fig. 3 is the A direction view of Fig. 2；
Fig. 4 is the B direction view of Fig. 2.
Specific embodiment
In order to make the present invention more obvious and understandable, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.
The present invention is a kind of current transformer protective cover, is made of two symmetrical semicircular rings, as shown in Figure 1,
It includes stainless steel cage 1, observation window 3, sealing strip 2, insulation board 4.Stainless steel cage 1 is covered by independent two semiclosed conjunctions,
Stainless steel cage 1 is fixed in the expander flange bottom plate of current transformer by M6 stainless steel screw 5, and observation window 3 passes through sealing
Item 2 is fixed on stainless steel cage 1, and insulation board 4 is fixed on stainless steel cage 1 by M6 stainless steel screw 5.On stainless steel cage 1
Waist hole adjustable protective cover prevents dust, foreign matter etc. from influencing the normal of mutual inductor with transverse direction, the radial clearance of a connecting terminal
Operation.
In the present embodiment, observation window 3 is glass reinforced plastic observation window, and insulation board 4 is tetrafluoroethene insulation board.
Glass reinforced plastic observation window is placed between the stainless steel cage 1 of welding fabrication, is effectively sealed by sealing strip 2, and then
Sealing strip 2 is pasted along stainless 1 inner circle of steel cage, guarantees protective cover with effective sealing of expander radial clearance.Again by tetrafluoro
Ethylene insulation board is placed in the card slot of stainless steel cage 1, is adjusted by the tetrafluoroethene insulation board in card slot come left and right, is guaranteed to protect
Effective sealing of the shield with a connecting terminal lateral clearance.Protective cover is fixed on electric current finally by M6 stainless steel screw 5
In the expander flange bottom plate of mutual inductor, effective solution primary connection terminal exposed various security risks.
Claims (1)
1. a kind of current transformer protective cover, which is characterized in that including stainless steel cage (1), stainless steel cage (1) passes through sealing strip
(2) it is fixedly connected with observation window (3), is fixed with insulation board (4) on stainless steel cage (1), insulation board (4) is tetrafluoroethene insulation
Plate；The stainless steel cage (1) is equipped with card slot, and insulation board (4) is set in card slot, passes through the tetrafluoroethene insulation board in card slot
To control adjustment, effective sealing of the guarantee protective cover with a connecting terminal lateral clearance；The stainless steel cage (1) is by independence
Two it is semiclosed conjunction cover；Stainless steel cage (1), which is equipped with, adjusts protective cover with transverse direction, the radial clearance of a connecting terminal
Waist hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548562.3A CN107154307B (en) | 2017-07-06 | 2017-07-06 | A kind of current transformer protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710548562.3A CN107154307B (en) | 2017-07-06 | 2017-07-06 | A kind of current transformer protective cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107154307A CN107154307A (en) | 2017-09-12 |
| CN107154307B true CN107154307B (en) | 2019-06-11 |
Family
ID=59795305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710548562.3A Active CN107154307B (en) | 2017-07-06 | 2017-07-06 | A kind of current transformer protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107154307B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031151U (en) * | 1988-01-28 | 1989-01-18 | 沈阳市和平互感器配件厂 | Full seal device for 35 kv mutual-inductor |
| EP1276121A2 (en) * | 2001-07-12 | 2003-01-15 | Elektrotechnische Werke Fritz Driescher & Söhne GmbH | Current transformer |
| CN2838010Y (en) * | 2005-10-24 | 2006-11-15 | 江苏精科互感器有限公司 | Novel oil paper insulated high voltage current transformer |
| CN201741531U (en) * | 2010-07-23 | 2011-02-09 | 龚理 | Densification-type metal corrugated expander |
| CN204390848U (en) * | 2014-11-27 | 2015-06-10 | 国家电网公司 | The false oil level expander for current transformer of a kind of prevention |
| CN204614605U (en) * | 2015-04-15 | 2015-09-02 | 国家电网公司 | Convenience oil-immersed-type mutual inductor oil position window structure |
| CN204966229U (en) * | 2015-09-01 | 2016-01-13 | 特变电工康嘉(沈阳)互感器有限责任公司 | Mutual -inductor is with inflation ware dustcoat |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201820627U (en) * | 2010-10-11 | 2011-05-04 | 河南省博源电器有限公司 | Current transformer protective cover |
| CN203038775U (en) * | 2013-01-16 | 2013-07-03 | 广东四会互感器厂有限公司 | Straight through current transformer provided with stainless steel housing |
| CN204668136U (en) * | 2015-06-12 | 2015-09-23 | 国网山东章丘市供电公司 | A kind of anti-electricity-theft current transformer connecting terminal guard shield |
-
2017
- 2017-07-06 CN CN201710548562.3A patent/CN107154307B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2031151U (en) * | 1988-01-28 | 1989-01-18 | 沈阳市和平互感器配件厂 | Full seal device for 35 kv mutual-inductor |
| EP1276121A2 (en) * | 2001-07-12 | 2003-01-15 | Elektrotechnische Werke Fritz Driescher & Söhne GmbH | Current transformer |
| CN2838010Y (en) * | 2005-10-24 | 2006-11-15 | 江苏精科互感器有限公司 | Novel oil paper insulated high voltage current transformer |
| CN201741531U (en) * | 2010-07-23 | 2011-02-09 | 龚理 | Densification-type metal corrugated expander |
| CN204390848U (en) * | 2014-11-27 | 2015-06-10 | 国家电网公司 | The false oil level expander for current transformer of a kind of prevention |
| CN204614605U (en) * | 2015-04-15 | 2015-09-02 | 国家电网公司 | Convenience oil-immersed-type mutual inductor oil position window structure |
| CN204966229U (en) * | 2015-09-01 | 2016-01-13 | 特变电工康嘉(沈阳)互感器有限责任公司 | Mutual -inductor is with inflation ware dustcoat |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107154307A (en) | 2017-09-12 |
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