CN204065216U - High voltage electric equipment Hall current sensor insulate external member - Google Patents
High voltage electric equipment Hall current sensor insulate external member Download PDFInfo
- Publication number
- CN204065216U CN204065216U CN201420463589.4U CN201420463589U CN204065216U CN 204065216 U CN204065216 U CN 204065216U CN 201420463589 U CN201420463589 U CN 201420463589U CN 204065216 U CN204065216 U CN 204065216U
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- CN
- China
- Prior art keywords
- insulativity
- sleeve pipe
- high voltage
- external member
- voltage electric
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of high voltage electric equipment Hall current sensor and measures insulation external member, comprise insulativity sleeve pipe (3) and be fixed in the conductor (2) in insulativity sleeve pipe, the length of described conductor is greater than insulativity sleeve pipe, the two ends that described conductor exposes insulativity sleeve pipe have plane bonding pad (2a), described plane bonding pad is provided with electrical connection hole (2a-1), the middle part of insulativity sleeve pipe is smooth, cylindrical peripheral surface (3a), the both sides of described smooth, cylindrical peripheral surface are the creepage muscle (3b) being arranged on insulativity sleeve pipe periphery, described creepage muscle is distributed as middle close two ends and dredges, be low-pressure side in the middle part of described insulativity sleeve pipe, described low-pressure side is provided with insulcrete (1).The utility model is external member as a whole, and can meet the insulating requirements between Hall element primary side and secondary side in more than 3kV high voltage electric apparatus, safe reliability is high.
Description
Technical field
The utility model relates to a kind of high voltage electric equipment Hall current sensor and measures insulation external member, refers in particular to, the current measurement external member of high voltage static synchronous compensator (STATCOM/SVG) or high voltage converter Hall element.
Background technology
Hall current sensor is that one utilizes Ampère law principle, adopts the magnetoelastic transducer part that semiconductor material is made.When input end (i.e. primary side) passes into electric current, there is Hall voltage at output terminal (i.e. secondary side).The size of Hall voltage is directly proportional to electric current, can the size of indirect inspection current－carrying conductor electric current by the size measuring Hall voltage, comprises the DC component in electric current.Therefore, Hall element makes the non-cpntact measurement of electric current become possibility.
In the measuring process to current－carrying conductor electric current, Hall current sensor have passed through the insulation isolation conversion of electricity-magnetic-electricity.Due to the restriction of manufacturing process and volume, the thickness of insulating layer of conventional Hall element and creepage distance all can not accomplish high voltage, and usual operating voltage is not more than 1700V, insulation voltage 3500V.When the rated voltage of high voltage electric equipment is more than 3kV, when current use Hall element detects electric current, general use silicon rubber insulated cable or copper bar bag hot high pressure Heat-Shrinkable Tubings mode solve Insulation Problems, due to poor radiation use for a long time easily cause insulated cable or sleeve pipe aging, there is certain potential safety hazard, and sensor is usually placed in narrow and small cabinet inner space, large diameter cable is difficult to put to good use; The through wires hole of Hall element is less in addition, is difficult to use flat copper bar directly to pass.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of high voltage electric equipment Hall current sensor to measure insulation external member, effectively can solve the Insulation Problems between Hall element input end and output terminal.
The technical scheme that the utility model solves the problem is as follows:
A kind of high voltage electric equipment Hall current sensor measures insulation external member, it is characterized in that:
Comprise insulativity sleeve pipe and be fixed in the conductor in insulativity sleeve pipe, the length of described conductor is greater than insulativity sleeve pipe, the two ends that described conductor exposes insulativity sleeve pipe have plane bonding pad, described plane bonding pad is provided with electrical connection hole, the middle part of insulativity sleeve pipe is smooth, cylindrical peripheral surface (3a), the both sides of described smooth, cylindrical peripheral surface are the creepage muscle being arranged on insulativity sleeve pipe periphery, described creepage muscle is distributed as middle close two ends and dredges, be low-pressure side in the middle part of described insulativity sleeve pipe, described low-pressure side is provided with insulcrete.
Further improvement is, the creepage muscle being arranged on insulativity sleeve pipe two ends is spaced apart 12mm, and the creepage muscle in insulativity sleeve pipe centre position is spaced apart 6mm.
Further, described conductor is processed by pole that is copper or aluminium matter.Or,
Described conductor is suppressed by pipe that is copper or aluminium matter and is formed.The size of conductor is determined according to current-carrying capacity.
Further improving is that described conductor two ends have radial screw bore, and the position of the corresponding radial screw bore of described insulativity sleeve pipe offers circular hole, and described radial screw bore and circular hole are connected by screw fixing.
Be 4 as preferred described circular hole quantity, the circumference along insulativity sleeve pipe is evenly offered.As long as select 90 degree during installation, need not confirm conductor travel direction again, be convenient to be fixedly connected with conductor and insulativity sleeve pipe fast.
Principle of work of the present utility model is, insulativity sleeve pipe and conductor are assembled into an overall external member, and external member two ends bare exposed conductor part is high-pressure side, and centre position is low-pressure side for installing Hall element position, and Hall element is fixed on insulcrete; Round conductor is mistake from the axis punching of insulativity sleeve pipe, insulator two ends first dredge after close creepage muscle ensure that electric clearance and the creepage distance requirement of relevant voltage grade.
To sum up, compared with prior art, the utility model has following beneficial effect:
1, the utility model external member as a whole, can meet the insulating requirements between Hall element primary side and secondary side in more than 3kV high voltage electric apparatus, safe reliability is high.
2, the utility model allows big current directly to pass from Hall element.
3, the utility model compact dimensions, good looking appearance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of insulativity sleeve pipe in the utility model.
Fig. 3 is the structural representation of conductor in the utility model.
In figure: 1, insulcrete; 2, conductor; 2a, plane bonding pad; 2a-1, electrical connection hole; 2b, threaded hole; 3, insulativity sleeve pipe; 3a, smooth, cylindrical peripheral surface; 3b, creepage muscle; 3c, circular hole; 4, gib screw.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Shown in composition graphs 1 to Fig. 3, a kind of high voltage electric equipment Hall current sensor measures insulation external member, the conductor 2 comprising insulativity sleeve pipe 3 and be fixed in insulativity sleeve pipe, the length of described conductor is greater than insulativity sleeve pipe, and insulativity sleeve pipe determines its wall thickness according to the AC voltage withstand test value of corresponding voltage grade.The two ends that described conductor exposes insulativity sleeve pipe have plane bonding pad 2a, described plane bonding pad is provided with electrical connection hole 2a-1, the middle part of insulativity sleeve pipe is smooth, cylindrical peripheral surface 3a, the both sides of described smooth, cylindrical peripheral surface are the creepage muscle 3b being arranged on insulativity sleeve pipe periphery, described creepage muscle is distributed as middle close two ends and dredges, and the creepage muscle that middle close two ends are dredged ensure that electric clearance and the creepage distance requirement of relevant voltage grade.Be low-pressure side in the middle part of described insulativity sleeve pipe, described low-pressure side is provided with insulcrete 1.As preferably, epoxy glue fixed insulation plate can be used.The creepage muscle being arranged on insulativity sleeve pipe two ends is spaced apart 12mm, and the creepage muscle in insulativity sleeve pipe centre position is spaced apart 6mm.
Described conductor is processed by pole that is copper or aluminium matter or is suppressed by pipe that is copper or aluminium matter and forms.Use pole as conductor, end flat symmetrical machining goes out the plane of certain overlap joint area; Use pipe as conductor, two ends are flattened and are molded plane, reprocess out electrical connection hole.
Described conductor two ends have radial screw bore 2b, and the position of the corresponding radial screw bore of described insulativity sleeve pipe offers circular hole 3c, and described radial screw bore and circular hole are connected by screw fixing.In order to be fixedly connected with conveniently, described circular hole quantity is 4, and the circumference along insulativity sleeve pipe is evenly offered.As long as select 90 degree during installation, need not confirm conductor travel direction again, be convenient to be fixedly connected with conductor and insulativity sleeve pipe fast.
Principle of work of the present utility model is, insulativity sleeve pipe and conductor are assembled into an overall external member, and external member two ends bare exposed conductor part is high-pressure side, and centre position is low-pressure side for installing Hall element position, and Hall element is fixed on insulcrete; Round conductor is mistake from the axis punching of insulativity sleeve pipe, insulator two ends first dredge after close creepage muscle ensure that electric clearance and the creepage distance requirement of relevant voltage grade.
Claims (6)
1. high voltage electric equipment Hall current sensor measures an insulation external member, it is characterized in that:
Comprise insulativity sleeve pipe (3) and be fixed in the conductor (2) in insulativity sleeve pipe, the length of described conductor is greater than insulativity sleeve pipe, the two ends that described conductor exposes insulativity sleeve pipe have plane bonding pad (2a), described plane bonding pad is provided with electrical connection hole (2a-1), the middle part of insulativity sleeve pipe is smooth, cylindrical peripheral surface (3a), the both sides of described smooth, cylindrical peripheral surface are the creepage muscle (3b) being arranged on insulativity sleeve pipe periphery, described creepage muscle is distributed as middle close two ends and dredges, be low-pressure side in the middle part of described insulativity sleeve pipe, described low-pressure side is provided with insulcrete (1).
2. high voltage electric equipment Hall current sensor according to claim 1 measures insulation external member, it is characterized in that:
The creepage muscle being arranged on insulativity sleeve pipe two ends is spaced apart 12mm, and the creepage muscle in insulativity sleeve pipe centre position is spaced apart 6mm.
3. high voltage electric equipment Hall current sensor according to claim 1 measures insulation external member, it is characterized in that:
Described conductor is processed by pole that is copper or aluminium matter.
4. high voltage electric equipment Hall current sensor according to claim 1 measures insulation external member, it is characterized in that:
Described conductor is suppressed by pipe that is copper or aluminium matter and is formed.
5. high voltage electric equipment Hall current sensor according to claim 1 measures insulation external member, it is characterized in that:
Described conductor two ends have radial screw bore (2b), and the position of the corresponding radial screw bore of described insulativity sleeve pipe offers circular hole (3c), and described radial screw bore and circular hole are connected by screw fixing.
6. high voltage electric equipment Hall current sensor according to claim 5 measures insulation external member, it is characterized in that:
Described circular hole quantity is 4, and the circumference along insulativity sleeve pipe is evenly offered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463589.4U CN204065216U (en) | 2014-08-15 | 2014-08-15 | High voltage electric equipment Hall current sensor insulate external member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420463589.4U CN204065216U (en) | 2014-08-15 | 2014-08-15 | High voltage electric equipment Hall current sensor insulate external member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204065216U true CN204065216U (en) | 2014-12-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420463589.4U Expired - Fee Related CN204065216U (en) | 2014-08-15 | 2014-08-15 | High voltage electric equipment Hall current sensor insulate external member |
Country Status (1)
| Country | Link |
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| CN (1) | CN204065216U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188054A (en) * | 2018-09-26 | 2019-01-11 | 江苏史利姆智能测控技术有限公司 | A kind of device for extra-high voltage current detecting |
| CN109212295A (en) * | 2018-09-26 | 2019-01-15 | 江苏史利姆智能测控技术有限公司 | A method of for extra-high voltage current detecting |
-
2014
- 2014-08-15 CN CN201420463589.4U patent/CN204065216U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188054A (en) * | 2018-09-26 | 2019-01-11 | 江苏史利姆智能测控技术有限公司 | A kind of device for extra-high voltage current detecting |
| CN109212295A (en) * | 2018-09-26 | 2019-01-15 | 江苏史利姆智能测控技术有限公司 | A method of for extra-high voltage current detecting |
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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: 20141231 Termination date: 20200815 |