阅读说明：本技术 一种可用于气体绝缘高压开关柜的高ip防护等级的电流互感器 (Current transformer with high IP protection grade and applicable to gas insulated high-voltage switch cabinet ) 是由 施莲辉 李清发 于 2020-03-29 设计创作，主要内容包括：本发明公开了一种可用于气体绝缘高压开关柜的高IP防护等级的电流互感器,包括电流互感器主体,所述电流互感器主体的外部设置有环氧树脂,所述环氧树脂的内部设置有金属屏蔽网,所述电流互感器主体的内部设置有一号一次导体、二号一次导体、一号二次绕组与二号二次绕组,所述一号一次导体位于二号一次导体的一端,所述一号二次绕组包括一号铁芯,所述二号二次绕组包括二号铁芯。本发明所述的一种可用于气体绝缘高压开关柜的高IP防护等级的电流互感器,设有环氧树脂与金属屏蔽网,能够增加电流互感器的防护等级,设备至少可在水下正常工作30分钟,产品外表面可实现安全可触摸功能,便于进行拆装,简单实用,带来更好的使用前景。(The invention discloses a current transformer with high IP protection grade for a gas insulated high-voltage switch cabinet, which comprises a current transformer main body, wherein epoxy resin is arranged outside the current transformer main body, a metal shielding net is arranged inside the epoxy resin, a first primary conductor, a second primary conductor, a first secondary winding and a second secondary winding are arranged inside the current transformer main body, the first primary conductor is positioned at one end of the second primary conductor, the first secondary winding comprises a first iron core, and the second secondary winding comprises a second iron core. The current transformer with high IP protection level for the gas insulated high-voltage switch cabinet is provided with the epoxy resin and the metal shielding net, the protection level of the current transformer can be increased, equipment can normally work for at least 30 minutes underwater, the outer surface of a product can realize a safe and touchable function, and the current transformer is convenient to disassemble and assemble, simple and practical and brings better use prospect.)

1. The utility model provides a can be used to high IP protection level's of gas insulated high tension switchgear current transformer, includes current transformer main part (1), its characterized in that: the outside of current transformer main part (1) is provided with epoxy (11), the inside of epoxy (11) is provided with metallic shield net (5), the inside of current transformer main part (1) is provided with primary conductor (3), No. two primary conductors (6), secondary winding (4) and No. two secondary winding (9), primary conductor (3) is located the one end of No. two primary conductors (6), No. one secondary winding (4) includes iron core (7), No. two secondary winding (9) includes No. two iron core (10), No. one secondary winding (4) and No. two secondary winding (9) pass primary winding (8).

2. The current transformer with high IP protection level for the gas insulated high voltage switch cabinet according to claim 1, characterized in that: the upper end of current transformer main part (1) is provided with installation aluminum plate (2), one side of current transformer main part (1) is provided with secondary terminal box (12), one side of secondary terminal box (12) is provided with secondary lead (13), the lower extreme of current transformer main part (1) is provided with installation steel sheet (14).

3. The current transformer with high IP protection level for the gas insulated high voltage switch cabinet according to claim 1, characterized in that: the current transformer is characterized in that the epoxy resin (11), the metal shielding net (5) and the current transformer body (1) are formed through pouring and sealing, and the first secondary winding (4) and the second secondary winding (9) are poured in the epoxy resin (11).

4. The current transformer with high IP protection level for the gas insulated high voltage switch cabinet according to claim 1, characterized in that: the current transformer main part (1) is connected with a user cabinet body through an installation aluminum plate (2), and the installation aluminum plate (2) is fixedly connected with a metal insert on the epoxy casting body through a plurality of bolts.

5. The current transformer with high IP protection level for the gas insulated high voltage switch cabinet according to claim 1, characterized in that: a fixing screw is arranged between the current transformer main body (1) and the secondary junction box (12), and one side of the current transformer main body (1) is fixedly connected with one side of the secondary junction box (12) through the fixing screw.

6. The current transformer with high IP protection level for the gas insulated high voltage switch cabinet according to claim 1, characterized in that: a plurality of bolts are arranged between the current transformer main body (1) and the installation steel plate (14), and the lower end of the current transformer main body (1) is fixedly connected with the upper end of the installation steel plate (14) through the bolts.

Technical Field

The invention relates to the field of current transformers, in particular to a high-IP protection level current transformer for a gas insulated high-voltage switch cabinet.

Background

The current transformer is a key functional device for realizing measurement and protection of a power supply system, and in order to ensure safe and normal operation of the power supply system in an area often affected by flood, the high-voltage switch cabinet including the current transformer and other devices is required to have higher waterproof grade and safe use requirements, and along with the continuous development of science and technology, the requirements of people on the manufacturing process of the current transformer are higher and higher.

Present current transformer has certain drawback when using, at first, traditional current transformer can not be fine carry out waterproof operation, and inside wets and causes dangerous condition such as short circuit easily, is unfavorable for people's use, and in addition, traditional current transformer installation probably is comparatively complicated, and difficult dismantlement has brought certain adverse effect for people's use, for this reason, we provide a current transformer that can be used to gas insulated high tension switchgear's high IP protection level.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the current transformer with the high IP protection level for the gas insulated high-voltage switch cabinet, which has the advantages that the protection level of the current transformer is increased, the equipment can normally work for at least 30 minutes underwater, can be normally put into operation after being soaked in water and dried, the outer surface of a product realizes a safe and touchable function, is convenient to disassemble and assemble, is simple and practical, and the like, and can effectively solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a can be used to high IP protection level's of gas insulated high tension switchgear current transformer, includes the current transformer main part, the outside of current transformer main part is provided with epoxy, epoxy's inside is provided with metallic shield net, the inside of current transformer main part is provided with a primary conductor, No. two primary conductors, a secondary winding and No. two secondary winding, a primary conductor is located the one end of No. two primary conductors, a secondary winding includes an iron core, No. two secondary winding includes No. two iron cores, a secondary winding passes a primary winding with No. two secondary winding.

Preferably, the upper end of the current transformer main body is provided with an installation aluminum plate, one side of the current transformer main body is provided with a secondary junction box, one side of the secondary junction box is provided with a secondary lead, and the lower end of the current transformer main body is provided with an installation steel plate.

Preferably, the epoxy resin, the metal shielding net and the current transformer main body are formed through pouring and sealing, and the first secondary winding and the second secondary winding are poured in the epoxy resin.

Preferably, the current transformer main part is connected with the user cabinet body through an installation aluminum plate, and the installation aluminum plate is fixedly connected with the metal insert on the epoxy casting body through a plurality of bolts.

Preferably, a fixing screw is arranged between the current transformer main body and the secondary junction box, and one side of the current transformer main body is fixedly connected with one side of the secondary junction box through the fixing screw.

Preferably, a plurality of bolts are arranged between the current transformer main body and the installation steel plate, and the lower end of the current transformer main body is fixedly connected with the upper end of the installation steel plate through the bolts.

(III) advantageous effects

Compared with the prior art, the invention provides the current transformer with high IP protection grade for the gas-insulated high-voltage switch cabinet, which has the following beneficial effects: the current transformer with high IP protection grade for the gas insulated high-voltage switch cabinet can increase the protection grade of the current transformer through the resin and the shielding net, the equipment can normally work for at least 30 minutes under water, can normally put into operation after being soaked in water and can be dried, the outer surface of the product can realize the safe touch function, the installation is simpler, the replacement is convenient, the use effect is increased, the main body outside the device is the resin, most mutual inductive elements are sealed inside the device by the resin type material, the shielding net film is also positioned inside the resin type material, the waterproof effect is better, through installation aluminum plate and resin, shielding net convenience install fixedly to the device, make device work more stable, the people's of being convenient for use, the signal reception operation is carried out with the secondary lead wire is convenient better to the secondary terminal box, whole current transformer simple structure, convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic structural diagram of an overall cross-sectional view of a high IP protection level current transformer applicable to a gas insulated high voltage switchgear according to the present invention.

Fig. 2 is a schematic structural diagram of a front view of a high IP protection level current transformer applicable to a gas insulated high voltage switchgear according to the present invention.

Fig. 3 is a schematic structural diagram of a bottom view of a high IP protection level current transformer applicable to a gas insulated high voltage switchgear according to the present invention.

Fig. 4 is a schematic structural diagram of a side view of a high IP protection level current transformer applicable to a gas insulated high voltage switchgear according to the present invention.

Fig. 5 is a schematic structural diagram of a top view of a current transformer with high IP protection class for a gas insulated high voltage switchgear according to the present invention.

In the figure: 1. a current transformer body; 2. mounting an aluminum plate; 3. a first primary conductor; 4. a first secondary winding; 5. a metal shielding mesh; 6. a second primary conductor; 7. a first iron core; 8. a primary winding; 9. a second secondary winding; 10. a second iron core; 11. an epoxy resin; 12. a secondary junction box; 13. a secondary lead; 14. and (5) installing a steel plate.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-5, a current transformer with high IP protection level for a gas insulated high voltage switch cabinet comprises a current transformer body 1, an epoxy resin 11 is arranged outside the current transformer body 1, a metal shielding net 5 is arranged inside the epoxy resin 11, a first primary conductor 3, a second primary conductor 6, a first secondary winding 4 and a second secondary winding 9 are arranged inside the current transformer body 1, the first primary conductor 3 is located at one end of the second primary conductor 6, the first secondary winding 4 comprises a first iron core 7, the second secondary winding 9 comprises a second iron core 10, the first secondary winding 4 passes through the primary winding 8, and the first secondary winding 4 and the second secondary winding 9 pass through the primary winding 8.