CN102403115A - Outdoor box-type 10-20kV current transformer - Google Patents
Outdoor box-type 10-20kV current transformer Download PDFInfo
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- CN102403115A CN102403115A CN2010102930628A CN201010293062A CN102403115A CN 102403115 A CN102403115 A CN 102403115A CN 2010102930628 A CN2010102930628 A CN 2010102930628A CN 201010293062 A CN201010293062 A CN 201010293062A CN 102403115 A CN102403115 A CN 102403115A
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Abstract
The invention relates to an outdoor box-type 10-20kV current transformer, which comprises a high-voltage insulation sleeve, a metal box body, a current transformer body, a secondary winding outgoing wiring board of the current transformer, and installation channel steel, wherein the high-voltage insulation sleeve penetrates through the upper end surface of the metal box body to be connected with a primary winding outgoing secondary terminal of the current transformer, and a certain spatial distance between the current transformer body and the metal box body is kept; and the secondary winding outgoing wiring board of the current transformer is arranged at the outer side of the lower end of one side of the metal box body, and the current transformer body and the metal box body are arranged on the channel steel. The outdoor box-type 10-20kV current transformer is a current conversion device which is developed to be used for power distribution network protection, detection and electric energy metering according to the practical need of a power distribution network site, overcomes the defects that oil is leaked in an oil-immersed current transformer and an epoxy resin cast current transformer is aged and cracked due to the exposure to the weather, and has the advantages that: the safe operation of a power distribution system can be improved, the reliability of power supply is improved, the damage to the transformer is reduced, the amount of power supply is increased, and the enterprise and social benefits are increased.
Description
Technical field
The present invention relates to a kind of outdoor box 10～20kV current transformer, is a kind of unsteady flow electrical equipment that is applied to power distribution network power supply protection, detection, electric energy metrical.
Background technology
At present, along with the industrial and agricultural production great development, national economy improves rapidly, and living standards of the people constantly promote, and power industry is also developed on an unprecedented scale, and the nationwide integrated power grid construction is maked rapid progress.The electric power of electrical network is delivered to huge numbers of families after through power distribution network and distribution transformer transformation, and the current transformer that the high-tension current signals collecting of the power distribution network of current operation and distribution transformer system protection, detection, electric energy metrical adopts has oil immersed type, poured with epoxy resin formula; It is easy seepage oil that there is shortcoming in oil-immersed current transformer, and insulation is difficult to guarantee, often is out of order; It is that epoxy resin bursts apart through the easy ageing of exposing to the weather that there is shortcoming in poured with epoxy resin formula current transformer, causes power outage.Just can avoid above defective if adopt the outdoor box current transformer.
Summary of the invention
The present invention provides a kind of outdoor box 10～20kV current transformer, and he can avoid oil-immersed current transformer seepage oil fault, the poured with epoxy resin formula current transformer aging power outage that bursts apart of exposing to the weather.
Outdoor box 10～20kV current transformer comprises high-tension insulating bushing, metal cabinet, and the current transformer body, secondary winding in current transformer outlet terminal block, current transformer is installed channel-section steel; Said high-tension insulating bushing was scurried two of winding outlets of said metal cabinet and said current transformer and was connected; Keep the certain space distance between said current transformer body and the said metal cabinet; Said secondary winding in current transformer outlet terminal block is installed in said metal cabinet one side lower outside; Outlet terminal block upper end dress rain cover, said current transformer body and said metal cabinet are installed on the channel-section steel.
Said metal cabinet is a three-dimensional shape; Six faces are metals; Two holes are arranged above, be used to install high-tension insulating bushing, said current transformer body is installed in the said metal cabinet; Metal cabinet is installed on the channel-section steel, and metal cabinet one side lower outside is installed said secondary winding in current transformer outlet terminal block.
Said current transformer body comprises iron core, a winding, secondary winding, epoxy resin; Said iron core is the O font, and a said winding is enclosed within iron core O font on one side, and said secondary winding is enclosed within iron core O font another side; Said epoxy resin is to be used for the casting transformer body, and integrated poured Bao Yan cements; A said winding two ends is connected in high pressure one phase line; Said secondary winding two ends connects control, protection, ic for energy metering.
This outdoor box 10～20kV current transformer; Be according to a kind of unsteady flow electrical equipment that is used for distribution protection, detection, electric energy metrical of on-the-spot actual needs exploitation; The relative prior art of the present invention has outstanding substantive distinguishing features and obvious improvement property; Specifically, this outdoor box current transformer is reasonable in design, desirable realization the unsteady flow electrical equipment of distribution protection, detection, electric energy metrical; Will play positive guarantee effect for electric power netting safe running, the concrete advantage of this outdoor box 10～20kV current transformer:
The present invention provides a kind of outdoor box 10kV current transformer, and he can avoid oil-immersed current transformer seepage oil fault, the poured with epoxy resin formula current transformer aging defective of bursting apart of exposing to the weather.
Outdoor box 10～20kV current transformer is used and can be reduced power distribution network and the generation of distribution transformer systematic failures, improves amount of power supply, increases enterprise and social benefit.
Outdoor box 10～20kV current transformer is used the safe operation that can improve distribution network system, has improved the reliability of power supply, reduces the damage of current transformer, reduces the distribution network system equipment investment.
Description of drawings
Fig. 1 is outdoor box 10～20kV current transformer structural representation of the present invention;
Fig. 2 is a metal cabinet structural representation of the present invention;
Fig. 3 is a current transformer body composition diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description:
Fig. 1 is outdoor box 10～20kV current transformer structural representation of the present invention, comprises high-tension insulating bushing 1, metal cabinet 2, and current transformer body 3, secondary winding in current transformer outlet terminal block 4, current transformer is installed channel-section steel 5; Said high-tension insulating bushing string upper surface is crossed winding outlet two terminations of said metal cabinet and said current transformer and is connected; Keep the certain space distance between said current transformer body and the said metal cabinet; Said secondary winding in current transformer outlet terminal block is installed in said metal cabinet one side lower outside; Outlet terminal block upper end dress rain cover, said current transformer body and said metal cabinet are installed on the channel-section steel.The current transformer body is installed in the metal cabinet; (avoiding current transformer to expose to the weather) is fixed on and installs on the channel-section steel; Keep the certain space distance between current transformer body and the said metal cabinet; For heat dissipation ventilation, outdoor box 10kV current transformer upper end two high pressure insulating sleeve outlets serial connection high pressure one mutually in, the secondary winding in current transformer outlet connects protection, detection, electric power meter.
Fig. 2 is a metal cabinet structural representation of the present invention, and said metal cabinet is a three-dimensional shape, and six faces are metallic plates 2, and there are two holes 21 upper surface; Be used to install high-tension insulating bushing, the current transformer body is installed in the metal cabinet, metal cabinet is installed on the channel-section steel 5, and metal cabinet one side lower outside is installed secondary winding in current transformer outlet terminal block 4, outlet terminal block upper end dress rain cover.Metal cabinet is used for avoiding current transformer to expose to the weather.
Fig. 3 is a current transformer body composition diagram of the present invention, and said current transformer body comprises 32, windings 31 of iron core, secondary winding 33, epoxy resin 34; Said iron core is the O font, and a said winding is enclosed within iron core O font on one side, and said secondary winding is enclosed within iron core O font another side; Said epoxy resin is to be used for the casting transformer body, and integrated poured, Bao Yan cements, and purpose is that the moistureproof instrument transformer body that keeps insulate well.Said winding two ends L1, a L2 are connected in high pressure one phase line; Said secondary winding two ends K1, K2 connect protection, detection, ic for energy metering.
Should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not to its restriction; Although with reference to preferred embodiment the present invention has been carried out detailed explanation, the those of ordinary skill in affiliated field is to be understood that: still can specific embodiments of the invention make amendment or the part technical characterictic is equal to replacement; And not breaking away from the spirit of technical scheme of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (3)
1. outdoor box 10～20kV current transformer is characterized in that: comprise high-tension insulating bushing, metal cabinet, current transformer body, secondary winding in current transformer outlet terminal block, current transformer installation channel-section steel; Said high-tension insulating bushing string is crossed winding outlet two terminations in said metal cabinet upper surface and said current transformer and is connected; Keep the certain space distance between said current transformer body and the said metal cabinet; Said secondary winding in current transformer outlet terminal block is installed in said metal cabinet one side lower outside; Said outlet terminal block upper end dress rain cover, said current transformer body and said metal cabinet are installed on the channel-section steel.
2. the described outdoor box 10～20kV of claim 1 current transformer; It is characterized in that: said metal cabinet is a three-dimensional shape, and six faces are metallic plates, and two holes are arranged above; Be used to install high-tension insulating bushing; Said current transformer body is installed in the said metal cabinet, and metal cabinet is installed on the channel-section steel, and metal cabinet one side lower outside is installed said secondary winding in current transformer outlet terminal block.
3. the described outdoor box 10～20kV of claim 1 current transformer, it is characterized in that: said current transformer body comprises iron core, a winding, secondary winding, epoxy resin; Said iron core is the O font, and a said winding is enclosed within iron core O font on one side, and said secondary winding is enclosed within iron core O font another side; Said epoxy resin is to be used for the casting transformer body, and integrated poured Bao Yan cements; A said winding two ends is connected in high pressure one phase line; Said secondary winding two ends joint detection, protection, ic for energy metering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102930628A CN102403115A (en) | 2010-09-15 | 2010-09-15 | Outdoor box-type 10-20kV current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102930628A CN102403115A (en) | 2010-09-15 | 2010-09-15 | Outdoor box-type 10-20kV current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102403115A true CN102403115A (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102930628A Pending CN102403115A (en) | 2010-09-15 | 2010-09-15 | Outdoor box-type 10-20kV current transformer |
Country Status (1)
| Country | Link |
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| CN (1) | CN102403115A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554476A (en) * | 2020-05-16 | 2020-08-18 | 安徽华能集团电器有限公司 | Joint waterproof type high-voltage current transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2356988A1 (en) * | 1973-11-15 | 1975-05-22 | Raupach Friedrich | CAST RESIN INSULATED MEASURING CONVERTER, IN PARTICULAR VOLTAGE CONVERTER |
| CN87205573U (en) * | 1987-03-23 | 1988-01-06 | 沈骊天 | High signal-noise ratio current mutual-inductor for electrical shock protector |
| CN2030768U (en) * | 1987-12-21 | 1989-01-11 | 湖南省常德电业局 | Outdoor 10 kv voltage single phase or three phase mutual-inductor box |
| CN2144343Y (en) * | 1992-12-20 | 1993-10-20 | 梁穗玲 | High-voltage current transformer |
| CN2821822Y (en) * | 2005-09-12 | 2006-09-27 | 广东四会互感器厂有限公司 | Outdoor dry high voltae capacitance voltage mutual inductor |
| CN201041770Y (en) * | 2007-05-09 | 2008-03-26 | 江山市三江互感器有限公司 | Outdoor bus current mutual inductor |
| CN201804702U (en) * | 2010-09-15 | 2011-04-20 | 陈家斌 | Outdoor box-type 10kV current transformer |
-
2010
- 2010-09-15 CN CN2010102930628A patent/CN102403115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2356988A1 (en) * | 1973-11-15 | 1975-05-22 | Raupach Friedrich | CAST RESIN INSULATED MEASURING CONVERTER, IN PARTICULAR VOLTAGE CONVERTER |
| CN87205573U (en) * | 1987-03-23 | 1988-01-06 | 沈骊天 | High signal-noise ratio current mutual-inductor for electrical shock protector |
| CN2030768U (en) * | 1987-12-21 | 1989-01-11 | 湖南省常德电业局 | Outdoor 10 kv voltage single phase or three phase mutual-inductor box |
| CN2144343Y (en) * | 1992-12-20 | 1993-10-20 | 梁穗玲 | High-voltage current transformer |
| CN2821822Y (en) * | 2005-09-12 | 2006-09-27 | 广东四会互感器厂有限公司 | Outdoor dry high voltae capacitance voltage mutual inductor |
| CN201041770Y (en) * | 2007-05-09 | 2008-03-26 | 江山市三江互感器有限公司 | Outdoor bus current mutual inductor |
| CN201804702U (en) * | 2010-09-15 | 2011-04-20 | 陈家斌 | Outdoor box-type 10kV current transformer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111554476A (en) * | 2020-05-16 | 2020-08-18 | 安徽华能集团电器有限公司 | Joint waterproof type high-voltage current transformer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |