CN204215891U - A kind of open current transformer - Google Patents
A kind of open current transformer Download PDFInfo
- Publication number
- CN204215891U CN204215891U CN201420723148.3U CN201420723148U CN204215891U CN 204215891 U CN204215891 U CN 204215891U CN 201420723148 U CN201420723148 U CN 201420723148U CN 204215891 U CN204215891 U CN 204215891U
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- iron core
- latter half
- end iron
- push rod
- current transformer
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Abstract
The utility model discloses a kind of open current transformer, comprise the first half, upper end iron core, the latter half, lower end iron core and second siding ring, one end of the first half and the latter half is hinged, the other end is mutually involutory, form toroidal shell, the first half and the latter half contact-making surface are provided with the circular hole of fixing power transmission line, the contact-making surface being positioned at the first half is provided with groove, the contact-making surface being positioned at the latter half is longitudinally provided with electric expansion push rod, electric expansion push rod respective slot, upper end iron core is positioned at the first half, second siding ring is looped around on the iron core of lower end, lower end iron core is positioned at the latter half, upper end iron core contacts with lower end iron core, composition annular core.This open current transformer structure of the utility model is novel in design, can facilitate the two parts closing up and separate instrument transformer accurately, take out cable fast, can fast by the heat loss that produces in instrument transformer in surrounding environment, increase the service life.
Description
Technical field
The utility model relates to high voltage electric equipment technical field, relates to current transformer, specifically a kind of open current transformer.
Background technology
Existing low-voltage current mutual inductor is integral structure, centre is provided with through hole for wearing tested cable, usually need to block cable during installation again instrument transformer to be sleeved on corresponding cable, or allow operating circuit power-off, pull down one end of cable, penetrate in the through hole of instrument transformer, these two kinds of modes are installed inconvenience and can not hot line jobs, also affect the stable of electrical system performance.In addition, the current transformer in current supply circuit is made by silicon steel sheet and enamelled wire winding integratedization, and the appearance insulating material cast of current transformer forms.In installation process, the current supply circuit power failure that must first will install is carried out corresponding safety measure and just can be carried out construction and installation, if for the place that some power reguirements are high, such as chemical industry hazardous area, hospital etc., want construction just cumbersome, a lot of is exactly because the damage of current transformer or selected current transformer do not meet actual requirement, find abnormal in use for some time, want replacing just more difficult, some errors in Electro-metering and electricity consumption instruction will be caused like this.Cause misjudgment to operation and maintainer.
Existing Open Type Electric Current Mutual Inductor winding method is: by secondary winding concentrate be wound on iron core-closed on, cut after casting epoxy resin, two main parts of the Open Type Electric Current Mutual Inductor of cutting adopt plastic waistband to be held tightly, the induced current produced in secondary winding by electromagnetic induction is detected, its shortcoming is: during the Open Type Electric Current Mutual Inductor opening installation using plastic waistband to hold tightly, because instrument transformer is divided into two main parts, assembling, use, safeguard all inconvenient, and two parts of instrument transformer misalignment when closing up, larger power is needed time separately, extremely inconvenient.
Summary of the invention
The utility model is not enough for prior art, a kind of open current transformer is provided, this open current transformer structure is novel in design, the two parts closing up and separate instrument transformer accurately can be facilitated, take out cable fast, can fast by the heat loss that produces in instrument transformer in surrounding environment, increase the service life.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of open current transformer, comprise the first half, upper end iron core, the latter half, lower end iron core and second siding ring, one end of described the first half and described the latter half is hinged, the other end is mutually involutory, form toroidal shell, described the first half and described the latter half contact-making surface are provided with the circular hole of fixing power transmission line, the contact-making surface being positioned at described the first half is provided with groove, the contact-making surface being positioned at described the latter half is longitudinally provided with electric expansion push rod, the corresponding described groove of described electric expansion push rod, described upper end iron core is positioned at described the first half, described second siding ring is looped around on the iron core of described lower end, described second siding ring has two terminals, for external, described lower end iron core is positioned at described the latter half, described upper end iron core contacts with described lower end iron core, composition annular core, described electric expansion push rod comprises ball screw, reduction gearing and flexible push rod, described electric expansion push rod provides electric energy by external power supply.
In technique scheme, preferably, the outer wall of described the latter half is provided with some roads annular fin spaced apart from top to bottom, described annular fin is evenly distributed with and is tilted to outer louvre.。Beneficial effect: by radiator structure reasonable in design on housing, can ensure in every day use process and power failure time the heat that produces fall apart in time in surrounding environment.
In technique scheme, preferably, the bottom of described the latter half is provided with some layers of insulation full skirt.Beneficial effect: the some layers of insulator umbrella arranged like this, can ensure enough creepage distances.
The utility model compared with prior art, there is following beneficial effect: this open current transformer structure of the utility model is novel in design, the two parts closing up and separate instrument transformer accurately can be facilitated, take out cable fast, by radiator structure reasonable in design on housing, can ensure in every day use process and power failure time the heat that produces fall apart in surrounding environment in time, enough creepage distances can be ensured, increase the service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail: see Fig. 1, a kind of open current transformer, comprise the first half 1, upper end iron core 3, the latter half 2, lower end iron core 4 and second siding ring 5, one end of described the first half 1 and described the latter half 2 is hinged, the other end is mutually involutory, form toroidal shell, described the first half 1 and described the latter half 2 contact-making surface are provided with the circular hole of fixing power transmission line, the contact-making surface being positioned at described the first half 1 is provided with groove 6, the contact-making surface being positioned at described the latter half 2 is longitudinally provided with electric expansion push rod 7, the corresponding described groove 6 of described electric expansion push rod 7, described upper end iron core 3 is positioned at described the first half 1, described second siding ring 5 is looped around on described lower end iron core 4, described second siding ring 5 has two terminals, for external, described lower end iron core 4 is positioned at described the latter half 2, described upper end iron core 3 contacts with described lower end iron core 4, composition annular core, described electric expansion push rod 7 comprises ball screw, reduction gearing and flexible push rod, described electric expansion push rod 7 provides electric energy by external power supply.
The outer wall of described the latter half 2 is provided with some roads annular fin spaced apart 8 from top to bottom, described annular fin 8 is evenly distributed with and is tilted to outer louvre 9.
The bottom of described the latter half 2 is provided with some layers of insulation full skirt 10.
When user needs to open current transformer, user is energized to electric expansion push rod 7 by external power supply, electric expansion push rod 7 promotes the first half 1 by flexible push rod and is separated with the latter half 2, when distance between the first half 1 and the latter half 2 reaches the ultimate range of electric expansion push rod 7, user can rotate the first half 1 along hinged place, thus takes out cable fast.
The utility model compared with prior art, there is following beneficial effect: this open current transformer structure of the utility model is novel in design, the two parts closing up and separate instrument transformer accurately can be facilitated, take out cable fast, by radiator structure reasonable in design on housing, can ensure in every day use process and power failure time the heat that produces fall apart in surrounding environment in time, enough creepage distances can be ensured, increase the service life.
Claims (3)
1. an open current transformer, comprise the first half (1), upper end iron core (3), the latter half (2), lower end iron core (4) and second siding ring (5), it is characterized in that: one end of described the first half (1) and described the latter half (2) is hinged, the other end is mutually involutory, form toroidal shell, described the first half (1) and described the latter half (2) contact-making surface are provided with the circular hole of fixing power transmission line, the contact-making surface being positioned at described the first half (1) is longitudinally provided with groove (6), the contact-making surface being positioned at described the latter half (2) is provided with electric expansion push rod (7), the corresponding described groove (6) of described electric expansion push rod (7), described upper end iron core (3) is positioned at described the first half (1), described second siding ring (5) is looped around on described lower end iron core (4), described second siding ring (5) has two terminals, for external, described lower end iron core (4) is positioned at described the latter half (2), described upper end iron core (3) contacts with described lower end iron core (4), composition annular core, described electric expansion push rod (7) comprises ball screw, reduction gearing and flexible push rod, described electric expansion push rod (7) provides electric energy by external power supply.
2. a kind of open current transformer as claimed in claim 1, it is characterized in that: the outer wall of described the latter half (2) is provided with some roads annular fin spaced apart (8) from top to bottom, described annular fin (8) is evenly distributed with and is tilted to outer louvre (9).
3. a kind of open current transformer as claimed in claim 2, is characterized in that: the bottom of described the latter half (2) is provided with some layers of insulation full skirt (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723148.3U CN204215891U (en) | 2014-11-27 | 2014-11-27 | A kind of open current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420723148.3U CN204215891U (en) | 2014-11-27 | 2014-11-27 | A kind of open current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204215891U true CN204215891U (en) | 2015-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420723148.3U Active CN204215891U (en) | 2014-11-27 | 2014-11-27 | A kind of open current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204215891U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914024A (en) * | 2016-05-19 | 2016-08-31 | 中科电力装备（安徽）智能化科技有限公司 | Stable voltage transformer shell |
| CN112585482A (en) * | 2018-08-16 | 2021-03-30 | 菲尼克斯电气公司 | Current meter for detecting current in electrical conductor |
-
2014
- 2014-11-27 CN CN201420723148.3U patent/CN204215891U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105914024A (en) * | 2016-05-19 | 2016-08-31 | 中科电力装备（安徽）智能化科技有限公司 | Stable voltage transformer shell |
| CN112585482A (en) * | 2018-08-16 | 2021-03-30 | 菲尼克斯电气公司 | Current meter for detecting current in electrical conductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |