KR20230132283A - Lateral type insulator - Google Patents

Abstract

A horizontal insulator is disclosed. The disclosed horizontal insulator includes: a body having a high-pressure end located on one side of the high-pressure side with respect to the flow of voltage, and a low-pressure side end located on the other side of the low-pressure side; and wings which are formed to protrude laterally from the body to the flow of voltage. The size of the insulator has been reduced so that it can be easily installed in narrow places, including the inside of a transformer or a gas switch.

Description

Horizontal insulator{LATERAL TYPE INSULATOR}

The present invention relates to an insulator for insulating voltage, and more specifically, at least one wing is formed on the left and right sides between the high voltage end and the low voltage end on both the upper and lower sides, regardless of the limited insulation distance between the high voltage end and the low voltage end on both sides. It concerns a horizontal insulator that insulates high voltage by setting the creepage distance on both sides.

In general, power is supplied through a transformer at a power plant and then through a power line, and this power can then be supplied again through a transformer at a substation and converted to low voltage that can be used in general consumers such as homes or industrial sites.

At this time, transformer is a general term for devices that change alternating voltage and current values through electromagnetic induction. In particular, a transformer is a device that converts high-voltage power delivered from a power plant into low-voltage power required by general customers and supplies it. It can be manufactured to change the power to low-voltage at a local substation and then supply it to general customers.

These transformers differ depending on capacity and voltage, but in common, they may essentially include windings and an iron core to perform the function of the transformer. These windings and iron cores can be embedded in a tank filled with insulating oil. At this time, the insulating oil is an insulating material for the winding, and it prevents moisture or dust from penetrating and deteriorating the dielectric strength, and at the same time, it can dissipate heat generated from the iron core or winding through convection and radiation of the oil.

Additionally, a bushing may be built into the enclosure of the transformer along with a tank storing insulating oil to cool the heat generated during transformation. At this time, the bushing may be configured to apply high-voltage power supplied from the outside of the transformer to the windings inside the transformer. To explain in more detail, a bushing is installed in a transformer and may be composed of an insulator, which is a non-conductor with a hollow portion formed inside, and a conductor that penetrates the hollow portion of the insulator while being electrically connected to the transformer. Here, an insulator is an insulating material used to support and couple wires in transmission and distribution facilities, including transformers, and to electrically isolate them. This insulator can usually be made of porcelain, glass, or synthetic resin materials including polymers.

As shown in FIG. 1, this insulator 10 generally includes a body 11 having a roughly cylindrical outer shape, and a plurality of wings ( 12) can be provided. A high-pressure side end and a low-pressure side end may be located on both upper and lower sides of the body 11. In addition, the wings 12 are formed in large numbers in a disc shape that protrudes outward along the direction of voltage flow, and the number of wings is selected to meet the insulation distance (d) or creepage distance preset for insulation according to the size of the input high voltage. It can be. At this time, the insulation distance (d) is a straight line distance between both ends of the body 11 in the direction of voltage flow, and the creepage distance may be a curved distance between both ends of the body 11.

As the input high voltage increases, the number of wings 12 of the insulator 10 increases, and as a result, the insulation distance d also becomes longer.

However, due to the manufacturing structure of the insulator 10, the insulation distance (d), that is, the maximum distance between the upper and lower high-voltage end and the low-voltage end, is limited, so the size of the high voltage for insulation for each insulator 10 is also inevitably limited. There is a problem.

Republic of Korea Patent No. 10-0322053 (announced on February 6, 2002) Republic of Korea Patent No. 10-1234259 (announced on February 18, 2013)

The present invention was developed to solve the above problems, and its purpose is to provide a horizontal insulator with a structure that can be miniaturized while maintaining insulation performance.

In order to achieve the above object, the horizontal insulator according to the present invention has a body having a high-pressure side end located on the high-pressure side on one side and a low-pressure side end located on the low-pressure side on the other side to correspond to the direction of voltage flow; , It may include wings that are formed to protrude laterally from the body in the direction of voltage flow.

Here, depending on the magnitude of the incoming voltage, the number of wings formed in the lateral direction can be set while maintaining the insulation distance between the high-pressure side end and the low-pressure side end.

Additionally, the wing may be molded in half in both directions in the central area between the high pressure side end and the low pressure side end, or may be molded only on one side.

And as the insulation distance becomes longer depending on the size of the incoming voltage, the length of the central part between the high-pressure side end and the low-pressure end becomes longer, and the diameter of the wing formed by protruding from this central part increases, which increases the creepage distance. The number of wings can be set as the length increases.

According to the present invention, the wings are formed by protruding to the left and right from the insulator where the high-voltage end and the low-pressure end are located on both the upper and lower sides, thereby reducing the size of the insulator and making it easy to fit in narrow places, including the inside of a transformer or the inside of a gas switch. It has the effect of being installed easily.

In addition, since the maximum insulation distance is limited due to the structure of the insulator, the number of wings of the conventional insulator is inevitably limited depending on the maximum insulation distance, but the insulator of the present invention has wings formed as necessary on the left and right regardless of the maximum insulation distance. , it has the effect of being able to insulate a higher voltage compared to its size.

In addition, the insulator can be manufactured in a small size because the wings are molded laterally, and by using this, even if the number of wings is the same, the gap between the wings can be made wider than before, so a more stable insulation effect can be obtained as the creepage distance increases.

The following drawings attached to this specification illustrate embodiments of the present invention and serve to further understand the technical idea of the present invention along with the detailed description of the invention, so the present invention is limited only to the matters described in such drawings. It should not be interpreted.
Figure 1 is a perspective view schematically showing a conventional insulator.
Figures 2a and 2b are diagrams schematically showing the difference in insulation distance between the high-voltage side end and the low-voltage side end when twice the input voltage is provided to a conventional insulator.
Figures 3 and 4 are perspective views schematically showing a horizontal insulator according to a preferred embodiment of the present invention.
Figures 5 and 6 are partial side views showing the change in creepage length according to the number of wings of the conventional insulator and the insulator of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments will be described in detail so that those skilled in the art can easily practice the present invention. In addition, each embodiment among the configurations mentioned in the various embodiments In the example, mutually similar configurations and related configurations may be replaced, replaced, or added. However, when explaining in detail the operating principle of a preferred embodiment of the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

3 and 4, the horizontal insulator 100 according to an embodiment of the present invention includes a body 110, wings 120 formed on both left and right sides of the body 110, and a body 110. ) may be provided with an upper and lower high pressure side end 130 and a low pressure side end 140.

The body 110 may have wings 120 formed in the left and right directions regardless of the insulation distance D between the high pressure end 130 and the low pressure end 140 on both the upper and lower sides. Of course, the insulation distance D can also be freely set within the maximum insulation distance regardless of the number of wings 120 in the left and right directions. Here, by increasing the insulation distance of the body 110, that is, the vertical length of the central portion between the high-pressure side end 130 and the low-pressure side end 140, the diameter of the wings 120 protruding from the central portion to both sides can be increased. there is.

Additionally, in the body 110, the high-pressure side end 130 may be located on the high-pressure side where the high-pressure side electrode is connected, and the low-pressure side end 140 may be located on the low-pressure side.

Referring to Figure 3, the body 110 can be formed with a total of four wings 120, two on each side on the left and right. This is the same or similar to the structure in which four wings 12 are formed on the conventional insulator 10 shown in FIG. 2A, and may be a structure that insulates high voltages the same or similar to the conventional insulator 10.

Referring to FIG. 4, the body 110 can be formed with a total of eight wings 120, four on both left and right sides. This may be a structure for insulating high voltage that is the same or similar to the structure in which eight wings 12 are formed on the conventional insulator 10 shown in FIG. 2B. In this way, the wing 120 may be molded in half on both left and right sides, for example, in the central area between the high pressure side end 130 and the low pressure side end 140, or in another example, it may be molded on only one side of the left and right sides.

When the number of wings 120 is doubled in this way, as shown in Figures 3 and 4, the insulation length (D) between the high pressure side end 130 and the low pressure side end 140 of the body 110 will remain the same. You can. However, the insulation length (d) between the high-pressure side end 13 and the low-pressure side end 14 of the body 11 of the conventional insulator 10 in FIGS. 2A and 2B is approximately twice that of the clearance distance (α). It can be seen that it becomes longer by having additional .

In addition, since the maximum insulation distance (d or D) is limited due to the design structure of the insulator, the number of wings 12 of the conventional insulator 10 is inevitably limited by the maximum insulation distance (d), but the insulator of the present invention (100) The wings 120 can be formed as needed to the left and right regardless of the maximum insulation distance (D).

To explain this in more detail, the conventional insulator 10 shown in FIGS. 2A and 2B requires twice the voltage when a specific insulation distance 'd' of the insulator 10 is required for a specific voltage 'V'. If '2V' is input, the insulation distance may be required to be '2d+α'. At this time, the number of wings 12 may increase from 4 to 8 in the vertical direction of the insulation distance d. Additionally, since the maximum insulation distance (d) is limited due to the design structure of the insulator 10, the maximum number of wings 12 may also be limited.

On the other hand, in the insulator 100 of the present invention, as shown in Figures 3 and 4, even if the value of voltage 'V' changes to '2V', the insulation distance 'D' remains the same, and the insulation distance 'D' is maintained in a direction perpendicular to the insulation distance. The wings 120 that are protruding and molded can be divided into two sides, increasing from a total of 4, with 2 on each side, to a total of 8, with 4 on each side. At this time, the insulation distance D is maintained, and the wings 120 can be divided into left and right sides and formed. Therefore, it is free from limitations on the maximum insulation distance (D) of the insulator 100, and can be easily installed in narrow places because its size is reduced.

Of course, the insulation distance (D) of the insulator 100 can be manufactured to be the maximum insulation distance as needed. For example, as the insulation distance (D) between the high-pressure side end 130 and the low-pressure side end 140 increases, the diameter of the blade 120 increases as it increases, and the depth of the valley increases as the diameter of the blade 120 increases. becomes deeper, and thus the creepage distance described later may become longer, so this insulator 100 may insulate a higher voltage than before.

Meanwhile, the change in creepage distance between the actually manufactured insulator 100 of the present invention shown in Figures 3 and 4 and the conventional insulator 10 shown in Figures 2a and 2b will also be described with reference to Figures 5 and 6. .

First, as shown in FIG. 5, the conventional insulator 10 may have a creepage distance of 168.5 mm when there are four wings 12 in the height direction, and the creepage length may be 316.34 mm when there are eight wings 12 in the height direction. In this case, The increased creepage distance is 147.84mm.

In addition, as shown in FIG. 6, the insulator 100 of the present invention has a creepage length of a total of four wings 120, two at the top and bottom, of 223.25 mm, and a creepage length of a total of eight wings 120, four at the top and bottom, of 223.25 mm. It could be 371.03mm. At this time, the increased creepage distance is 147.78mm.

In this way, when the wings (12,120) are doubled, the increased creepage distance is 147.84mm and 147.78mm, respectively, which is almost no difference.

However, the conventional insulator 10 is elongated to 118 mm when the insulation distance (d) between the high-pressure side end 13 and the low-pressure end 14 is 68 mm, whereas the insulator 100 of the present invention has a high-pressure side end ( There is no change in the insulation distance (D) between 130) and the low-pressure side end 140.

As can be seen from this, the insulator 100 of the present invention has no change in the insulation distance (D) and can be manufactured in a small size because the change in length on the left and right is divided into the left and right sides. As a result, the insulator 100 of the present invention can be manufactured in a small size, and as a result, the insulator 100 of the present invention has no change in the insulation distance (D) and can be manufactured in a small size. It can be easily used in narrow places such as the inside of a room.

In addition, as can be seen in FIGS. 5 and 6, for the same four wings, the creepage distance of the conventional insulator 10 is 168.5 mm, and the creepage distance of the insulator 100 of the present invention is 316.34 mm. That is, since the conventional insulator 10 must take into account the maximum insulation distance between the high-pressure side end 13 and the low-pressure side end 14, the spacing between the wings 12 must also be considered and formed, so the distance between the wings 12 The gap may be narrow. On the other hand, in the insulator 100 of the present invention, the wings 120 are formed regardless of the maximum insulation distance between the high-pressure side end 130 and the low-pressure side end 14, so the space utilization of the finished product is high, and the wings 120 The spacing between the wings can be made wider than the spacing between the conventional wings 12. In this way, if the gap between the blades 120 is widened, the creepage distance also becomes longer, so that a more stable insulation effect can be obtained than the conventional insulator 10 for the same input voltage.

As described above, a person skilled in the art to which the present invention pertains will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. Therefore, the above-described embodiments should be understood in all respects as illustrative and not restrictive. The scope of the present invention is indicated by the patent registration claims described later rather than the detailed description, and all changes or modified forms derived from the meaning and scope of the patent registration claims and the equivalent concept should be interpreted as being included in the scope of the present invention. do.

100: Aeja
110: body 120: wings
130: high pressure side end 140: low pressure side end.

Claims (3)

A body 110 having a high-pressure end located on the high-pressure side of one side and a low-pressure side end located on the low-pressure side of the other side to correspond to the direction of voltage flow;
It includes a wing that is formed to protrude from the body in a lateral direction with respect to the direction of voltage flow,
A horizontal insulator, characterized in that the number of wings formed in the lateral direction is set while maintaining the insulation distance (D) between the high-pressure end and the low-pressure end according to the magnitude of the voltage. According to paragraph 1,
The wings are,
A horizontal insulator characterized in that it is molded in half in both directions in the central area between the high-pressure end and the low-pressure end, or is formed to be molded only on one side. According to claim 1 or 2,
As the insulation distance becomes longer depending on the magnitude of the voltage, the length of the central part between the high-pressure end and the low-pressure end becomes longer, and the diameter of the wing formed by protruding from this central part increases, and the creepage distance becomes longer accordingly. A horizontal insulator characterized in that the number of wings is set accordingly.