WO2017122853A1

WO2017122853A1 - Current transformer for power supply using power induced from high voltage distribution line

Info

Publication number: WO2017122853A1
Application number: PCT/KR2016/000623
Authority: WO
Inventors: 안생열
Original assignee: (주)우광테크
Priority date: 2016-01-15
Filing date: 2016-01-21
Publication date: 2017-07-20
Also published as: KR101747792B1

Abstract

The present invention relates to a current transformer for power supply using power induced from a high voltage distribution line, the current transformer comprising a first integration housing and second integration housing for receiving a body of a current transformer for receiving power induced from a high voltage distribution line and then converting the power into an alternating current power, wherein the second integration housing and the first integration housing are configured to be coupled in one step to each other by one touch, a circuit substrate for rectifying a second alternating current of the current transformer and converting the current into a direct current power is installed in the first integration housing, so that the current transformer does not require a separate space for signal processing, and the body of the current transformer can be easily inserted and coupled between the first integration housing and the second integration housing to maximize the assembly efficiency.

Description

Current transformer for power supply using power induced from high voltage distribution line

The present invention relates to a current supply current transformer using power induced in a high-voltage distribution line, and more particularly, having a first integrated housing and a second integrated housing for accommodating a current transformer body that receives power from the high-voltage distribution line and converts the power to AC power. However, the second integrated housing and the first integrated housing are configured to be combined at one time by one touch, and the circuit board for rectifying the secondary AC current of the current transformer and converting it into a DC power source is separately installed in the first integrated housing. It does not have to have a space for the power supply, the power supply using the induced power in the high-voltage distribution line, characterized in that the assembly to maximize the assembly by inserting the current transformer body between the first integrated housing and the second integrated housing easily. To a current transformer.

In general, the instrument current transformer is installed in a switch on a high voltage line through which high voltage flows, or a place for securing a power supply for a monitoring and management system for high voltage management, and is used in various fields such as a line, a circuit breaker, or a transformer.

As an example, a failure section automatic switchgear is used to cut off only a portion of a distribution line in order to prevent an abnormality in a distribution line or to maintain an unintentional distribution line.

This fault zone automatic switch basically detects the abnormality of the distribution line by generating the current proportional to the current value flowing through the distribution line by detecting the current flowing through the distribution line by using the control current transformer connected through the terminal connection material. .

Looking at the basic configuration of the automatic fault breaker, it is divided into a main body and a control unit, and the main body is a plurality of fixed contact parts fixed to the base, and movable contact parts and fixed contact parts installed to be movable in the same channel as the fixed contact parts. The control current transformer is fixed to the main component. Normally, the movable contact part is connected to the fixed contact part and current flows. However, when an abnormality occurs in the wiring line, the current flowing in the wiring line changes, and accordingly, the current output through the control current transformer also changes. If an abnormality occurs in the wiring line, the control unit moves the movable contact unit to separate the fixed contact unit and the movable contact unit, thereby protecting the wiring line.

These current transformers are currently available in two types, which are divided into general current transformers and split current transformers. Since the general current transformers are integrally formed, when initially installed on the track, the current transformers must be assembled first when the current transformers are installed in the enclosure of the breaker, the inside of the transformer, the busbar or the cable of the switchboard, and then penetrate the center of the current transformer. To assemble the device.

In other words, since the general current transformer is integrally formed without a separate configuration, since the current transformer is installed first, the cable passes through the through hole formed in the center, and thus, the current transformer is used under the premise that there is no dismantling and expansion of the current transformer. Therefore, in case of general current transformer, if the current transformer accident occurs due to user's careless operation or additional expansion of current transformer occurs, the current transformer should be disconnected and the current transformer should be replaced after dismantling the cable assembled in the line. There is a problem that it is not easy.

Therefore, what is proposed to solve the problem of the general current transformer is a split type current transformer. The split type current transformer can be installed directly in a cable without breaking and dismantling of the line through the separate configuration of the current transformer when the current transformer is expanded and replaced, unlike the integrated structure of the general current transformer.

Such a conventional split current transformer is as proposed in Korean Utility Model Registration No. 282270. Here, the conventional split-type current transformer is separated into an upper body and a lower body, and when the cable is already installed, the upper body and the lower body are separated, and the cable is seated in the through hole formed in the center, and the upper body and the lower body again. By combining the current transformers, it is possible to add and replace current transformers without disconnecting cables or breaking cables.

However, such a conventional split current transformer converts a high current through the cable into a commercial current while winding the coil only on the lower body core without winding the coil on the upper body core.

In addition, in the case of the divided current transformer, since the core is divided, the loss rate of the current is increased, and the cutting surface is oxidized and the durability is lowered during long-term use, thereby causing a large noise when high current is applied.

On the other hand, in order to solve the above problems, the present applicant forms a bevel gear in which gear teeth are formed on the upper or lower portion of the bobbin to which the plate-shaped steel core is wound, and is tooth-coupled with the bevel gear. Patent No. 10-1456204 provides a technique for providing a current transformer for the instrument that can wind the steel plate core to the bobbin by the driving force of the pinion gear in the state in which each gear is engaged by using the pinion gear rotated by means. I have suggested.

That is, as shown in Figs. 1 to 4, the plate-shaped steel core core 20 in the switchgear on the high-voltage line through which high-voltage electricity flows, or the current transformer for the instrument installed at the place for securing the power for the monitoring and management system for the high-pressure management. Bobbin 10 is wound; It comprises a winding means 30 for winding the steel plate core 20 and the bobbin 10, the housing 40 formed of a non-magnetic material; The catching means 30, the bevel gear 31 is coupled to the top or bottom of the bobbin 10; It is coupled to the bevel gear 31, and includes a pinion gear 32 for winding the steel plate core 20 to the bobbin 10 by rotating the bobbin 10 from the outside of the housing 40 ; The housing 40 further includes a coupling hole 41 formed at a portion at which the bevel gear 31 and the pinion gear 32 are engaged with each other on an upper surface or a lower surface thereof; The housing 40 has a cross-sectional shape in a donut shape, and is separated into first and

second housings

42 and 43 based on a center thereof, and the first and

second housings

42 and 43 are The coupling hole is hinged by the hinge 44, the coupling protrusion 45 is formed at the end of the first housing 42, the coupling protrusion 45 is coupled to the end of the second housing 43. It is characteristic that 46 is formed.

However, the conventional patent further includes a coupling hole 41 formed in a portion where the bevel gear 31 and the pinion gear 32 are engaged with each other on the upper or lower surface thereof; The housing 40 has a cross-sectional shape in a donut shape, and is separated into first and

second housings

42 and 43 based on a center thereof, and the first and

second housings

42 and 43 are The coupling hole is hinged by the hinge 44, the coupling protrusion 45 is formed at the end of the first housing 42, the coupling protrusion 45 is coupled to the end of the second housing 43. Since 46 was formed, there existed a problem that a housing structure was complicated and assembly property was inferior.

That is, as the hinge, the engaging protrusion, and the coupling hole are formed in the housing, the assembly is deteriorated, and additionally, the coupling hole has to be added to secure the moving space of the bevel gear and the pinion gear.

In addition, the conventional patent was a technique for directly coupling the conductive wire to the steel sheet to guide to the secondary side, it was difficult to combine the conductive wire directly to the steel sheet and maintenance was also difficult.

In addition, it was inconvenient to configure a separate circuit complex in a separate space for processing the current induced to the secondary side of the current transformer.

The present invention is to solve the above problems,

A first integrated housing and a second integrated housing are provided to accommodate a current transformer body that receives power from a high-voltage distribution line and converts the power into AC power, and the second integrated housing and the first integrated housing are configured to be combined at one time by one touch. In addition, by installing a circuit board for rectifying the secondary AC current of the current transformer into a DC power supply in the first integrated housing, there is no need for a separate space for signal processing, and easily between the first integrated housing and the second integrated housing. The purpose of the assembly is to maximize the assembly by inserting the current transformer body.

As a means for achieving the above object,

The present invention consists of a current transformer body (10), a first integrated housing (20) and a second integrated housing (30); The current transformer body 10 includes a cylindrical support 11 for winding the steel sheet core 11a around the outer surface and simultaneously passing the distribution line through the through hole 11b, and located at the lower end of the cylindrical support. A first disc-shaped support part 12, a second disc-shaped support part 13 located at an upper end of the cylindrical support part, a rack gear 14 provided on an upper part of the second disc-shaped support part, and the rack gear A pinion gear (15) engaged with the first gear, a first current transformer housing (16) wound around one side of the rack gear, and a coil for measuring current, and a second current transformer housing (17) for protecting the other side of the rack gear. Done; The first integrated housing 20 extends to the first semi-cylindrical support portion 21 and the first semi-cylindrical support portion configured to surround the first current transformer housing 16 of the current transformer body 10. A substrate support portion 22 having a shape and having a DC conversion current processing substrate 22a inserted therein and an upper support portion 23 closing the upper portion of the substrate support portion; The second integrated housing 30 includes a second semicylindrical support 31 configured to surround the second current transformer housing 17 of the current transformer body 10 and an upper surface of the second semicylindrical support 31. And extends in a direction perpendicular to the lower surface is characterized in that consisting of the wing surface (32) to guide insertion coupling to the first integrated housing in one touch.

In addition, the rack gear 15 is coupled to the upper portion of the second disc-shaped support 13, characterized in that arranged in the horizontal direction.

In addition, the wing surface 32 of the second integrated housing 30 is characterized in that the coupling groove (32a) is further formed to slide the body of the pinion gear.

As described above, the present invention includes a first integrated housing and a second integrated housing for accommodating a current transformer body that receives power from a high-voltage distribution line and converts the power into AC power, and the second integrated housing and the first integrated housing are one-touched by one touch. It is configured to be combined at one time, and a circuit board for rectifying the secondary AC current of the current transformer and converting it into a DC power source is installed in the first integrated housing, and there is no need for a separate space for signal processing. 2 There is an effect of maximizing assembly by inserting the current transformer body between the integrated housing and fastening.

1 to 4 is a conventional current transformer configuration.

5 is a combined perspective view of the current transformer of the present invention.

6 is a combined perspective view of the current transformer of the present invention.

Figure 7 is a perspective picture of the current transformer of the present invention.

Figure 8 is an enlarged photograph of the steel sheet core of the current transformer of the present invention.

Figure 9 is an enlarged top view of the current transformer of the present invention.

Figure 10 is a perspective view of a different angle of the current transformer of the present invention.

Figure 11 is a photograph showing the power supply by connecting the current transformer of the present invention to another device.

Hereinafter, with reference to the accompanying drawings and description will be described in detail the operating principle of the preferred embodiment of the present invention. However, the drawings and the following description shown below are for the preferred method among various methods for effectively explaining the features of the present invention, the present invention is not limited only to the drawings and description below.

In addition, in the following description of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. Terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to intentions or customs of users or operators. Therefore, the definition should be made based on the contents throughout the present invention.

In addition, preferred embodiments of the present invention to be carried out below are already provided in each system functional configuration to efficiently describe the technical components constituting the present invention, or system functions commonly provided in the technical field to which the present invention belongs. The configuration will be omitted, and described mainly on the functional configuration to be additionally provided for the present invention.

If those skilled in the art to which the present invention pertains, it will be able to easily understand the function of the components already used in the prior art among the omitted functional configuration not shown below, and also the configuration omitted as described above The relationship between the elements and the components added for the present invention will also be clearly understood.

In addition, the following examples will be used to appropriately modify the terms so that those skilled in the art to clearly understand the technical features of the present invention to effectively understand, but the present invention It is by no means limited.

As a result, the technical spirit of the present invention is determined by the claims, and the following embodiments are one means for efficiently explaining the technical spirit of the present invention to those skilled in the art to which the present invention pertains. It's just

11 is a photograph showing the power supply by connecting the current transformer of the present invention to another device,

Current supply current transformer using the power induced in the high-voltage distribution line of the present invention is connected to the high-voltage distribution line to make the high-voltage distribution line to the primary side and generate the secondary side power through the steel plate core and then the secondary AC power to the DC power source It is a means for converting the power into power of various inspection equipment.

That is, in the prior art of the present invention has been described instrument current transformer, it is almost the same technical idea to induce the power applied to the secondary side of the line, the conventional current transformer for the instrument simply to grasp the current flow of the high-voltage distribution line The current transformer of the present invention is to induce AC power using the current of the high-voltage distribution line, and then to induce it back to DC power to utilize as a power source of various inspection equipment.

The components of the present invention largely comprise a current transformer body 10, a first integrated housing 20, and a second integrated housing 30.

The current transformer body 10 has a cylindrical support part 11 for supporting the steel plate core 11a on the outer side and simultaneously passing the conductive wire through the through hole, and a first disc-shaped support part located at the lower end of the cylindrical support part. (12), a second disc-shaped support portion 13 positioned at the upper end of the cylindrical support portion, a rack gear 14 installed on the upper portion of the second disc-shaped support portion and arranged in a horizontal direction; A pinion gear 15 meshed with the rack gear, a first current transformer housing 16 wound around one side of the rack gear, and a coil for measuring current, and a second current transformer housing protecting the other side of the rack gear ( 17).

The first integrated housing 20 extends to the first semi-cylindrical support 21 and the first semi-cylindrical support configured to surround the first current transformer housing 16 of the current transformer body 10, but has a rectangular parallelepiped shape. It consists of a substrate support 22 which is inserted into the substrate 22a for DC conversion current processing therein, and the upper support 23 for closing the upper portion of the substrate support.

The second integrated housing 30 includes a second semicylindrical support 31 configured to enclose the second current transformer housing 17 of the current transformer body 10 and from upper and lower surfaces of the second semicylindrical support. It extends in a perpendicular direction and consists of a wing surface 32 which guides to be inserted and coupled to the first integrated housing with one touch.

In addition, the wing surface of the second integrated housing is formed by further forming a coupling groove in which the body of the pinion gear is slidably coupled, whereby the pinion gear can be easily rotated in the closed state of the second integrated housing.

Hereinafter, the assembly method of the present invention will be described.

Since the present invention consists of the current transformer body 10, the first integrated housing 20, and the second integrated housing 30, the components are provided, respectively.

The current transformer body 10 basically includes a cylindrical support 11, a first disc-shaped support 12, a second disc-shaped support 13, and a rack gear 14. 11) was wound around the steel plate core (11a), and at this time, the pinion gear 15 is meshed with the side of the rack gear 14 to wind the steel plate core (11a). For reference, the technical concept of winding the steel sheet core to the cylindrical support is the same as mentioned in the prior art, and further description thereof will be omitted. In addition, a first disc-shaped support part 12 is installed below the cylindrical support part 11, and a second disc-shaped support part 13 is installed above the cylindrical support part 11. The second disc-shaped support part 13 is for stably supporting the steel plate core 11a when it is wound around the cylindrical support part 11.

In addition, a first current transformer housing 16 and a second current transformer housing 17 are installed in the current transformer body 10 of the present invention. In particular, the secondary current guide coil 16a is wound around the first current transformer housing 16. In addition, the secondary side AC current is extracted through the secondary side induction coil 16a, and the DC conversion current processing substrate 22a is converted into a DC current to be used as a power source for various devices.

In addition, when installing the first current transformer housing 16 and the second current transformer housing 17 in the upper portion of the rack gear 14 is assembled in a state that secures a constant space so as not to be in contact with each other.

That is, when the rack gear 14 is rotated by the pinion gear 15, the first gearbox housing 16 and the second current transformer housing 17 are not intermittently driven, and thus the rack gear 14 is normally rotated. The steel sheet core 11a can be wound by a desired length.

The first integrated housing 20 is configured by assembling the first semi-cylindrical support 21, the substrate support 22, and the upper support 23. The first semi-cylindrical support 21 is constructed in a first manner. It is configured in a rounded shape to surround and protect the current transformer housing 16 and the first current transformer housing 16 of the current transformer body 10 is in contact with the first semi-cylindrical support 21 during actual assembly. In addition, the substrate support part 22 is integrally installed by connecting to the first semi-cylindrical support part 21. The substrate 22a is installed inside the substrate support part 22, and the substrate support part 22 is installed in the first current transformer housing 16. Secondary induction coil (16a) is connected to induce a current flowing in the high-voltage line to an alternating current. In addition, an upper support part 23 is installed on the substrate support part 22 to close the upper part of the substrate support part 22.

The second integrated housing 30 is composed of a second semi-cylindrical support 31 and a wing surface 32, the second semi-cylindrical support 31 is formed in a cylindrical shape to facilitate the second current transformer housing 17. This allows the second current transformer housing 17 and the second semi-cylindrical support 31 to be completely closed.

In addition, since the wing surface 32 is formed on the second semi-cylindrical support part 31, the wing surface 32 is coupled to the first integrated housing 20 with one touch, thereby completely protecting the current transformer body 10. Makes all joins easy to complete.

Hereinafter will be described the effects of the present invention.

The present invention is provided with a current transformer body 10, but has a cylindrical support portion 11 having a through hole (11b) through which the conducting wire in the center is coupled to the distribution line to the through hole (11b).

The current transformer body 10 is prepared after the second integrated housing 30 is prepared in a state in which the current transformer body 10 to which the distribution line is coupled is disposed on the first semi-cylindrical support part 21 of the first integrated housing 20. It passes through and is coupled to the first integrated housing 20.

The wing face 32 of the second integrated housing 30 then slides the bottom face of the first disc-shaped support 12 of the current transformer body 10 and the top face of the second disc face 13 while slidingly engaging the first face. The first and second housings 20 and the current transformer body 10 are coupled to the second integrated housing 30 by one-touch by fitting to the top and bottom surfaces of the housing 20.

Meanwhile, the steel plate core 11a is wound around the outer circumferential surface of the cylindrical support portion 11 of the current transformer body 10. At this time, the pinion gear 15 is rotated while being engaged with the rack gear 14, and then the rack gear As the 14 is rotated, the steel sheet core 11a is wound around the outer circumferential surface of the cylindrical support 11 to complete the assembly.

When the assembling of the steel plate core 11a is completed as described above, the magnetic force generated by the distribution line is transmitted to the steel plate core 11a, and the magnetic force is induced to the secondary side induction coil installed at one end of the steel plate core 11a. An alternating current is induced, and the current is converted into a direct current on a substrate connected to the secondary induction coil to supply power to various equipment.

Claims

A current transformer body 10, a first integrated housing 20, and a second integrated housing 30;

The current transformer body 10,

Cylindrical support 11 for supporting the steel plate core 11a on the outer side and simultaneously passing the distribution line through the through hole 11b, and the first disk-shaped support 12 located at the lower end of the cylindrical support. And a second disc-shaped support 13 positioned at the upper end of the cylindrical support, a rack gear 14 installed on the second disc-shaped support, and a pinion gear 15 engaged with the rack gear. And a first current transformer housing 16 wound around one side of the rack gear and having a coil for measuring current, and a second current transformer housing 17 protecting the other side of the rack gear;

The first integrated housing 20,

A first semi-cylindrical support portion 21 configured to surround the first current transformer housing 16 of the current transformer body 10 and the first semi-cylindrical support portion are extended to the first semi-cylindrical support portion, and have a rectangular parallelepiped shape and process a DC conversion current therein. A substrate support portion 22 into which the substrate 22a is inserted, and an upper support portion 23 closing the upper portion of the substrate support portion;

The second integrated housing 30,

A second semicylindrical support part 31 configured to surround the second current transformer housing 17 of the current transformer body 10 and extending perpendicularly from an upper surface and a lower surface of the second semicylindrical support part 31; Current transformer for power supply using a power source induced in the high-voltage distribution line, characterized in that consisting of a wing surface (32) for inducing one-touch insertion coupled to the first integrated housing (20).
The method of claim 1,

The rack gear 15 is coupled to the upper portion of the second disk-shaped support 13, the current transformer for power supply using the power induced in the high-voltage distribution line, characterized in that arranged in the horizontal direction.
The method of claim 1,

Current transformer for power supply using the power induced in the high-voltage distribution line, characterized in that further formed on the wing surface 32 of the second integrated housing 30, the coupling groove (32a) for sliding the body of the pinion gear. .