KR101782051B1 - POLYMERIC JUMPER SUPPORT INSULATOR AND SETTING METHOD OF JUMPER WIDTH CONTROL DEVICE FOR 154kV T/L PROTECTION PANEL - Google Patents

Abstract

The present invention relates to a fixed polymer jumper support insulator used for a 154 kV transmission line (T/L) protection panel and an installation method of a jumper wire spacing device and, more specifically, to a fixed polymer jumper support insulator and a jumper wire spacing device installing method which can maintain a stable system by reducing a metal fitting installation cost, simplifying an installed metal fitting, and shortening work time by using the jumper wire spacing device in response to problems like the deformation (warp) of a polymer jumper support or the degradation of a metal fitting because of an interval difference between a jumper wire and the fixed polymer jumper support insulator used for a 154 kV T/L protection switchboard. The polymer jumper support insulator used for a through line according to an embodiment of the present invention includes a fixed polymer jumper support and a metal fitting connected with the fixed polymer jumper support. The metal fitting includes: a socket eye which connects the fixed polymer jumper support and the jumper spacing device; and the jumper wire spacing device. The jumper wire spacing device includes two adjustment plates which are separated by a jumper spacer. The two adjustment plates: include a first groove capable of being fixated on the socket eye; include a second groove capable of controlling the length of the metal fitting; and include a bolt, a nut, and a corona prevention nut capable of fixating the two adjustment plates.

Description

TECHNICAL FIELD [0001] The present invention relates to a fixed polymer jumper supporting device for a 154kV T / L protection switchgear, and a method of installing the jumper wire spacing device for a 154kV T / L protection switchgear.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a fixed polymer jumper support insulator and a jumper wire spacing device used in a 154 kV T / L protection panel, and more particularly, to a 154 kV T / L (Transmission Line) The use of a jumper wire spacing device to reduce the installation cost of gold fixtures in response to problems such as deformation (warping) of the metal jumper support or polymer jumper support due to the difference in jumper wire spacing between the fixed polymer jumper support insulator device The present invention relates to a fixed polymer jumper support insulator device and a method of installing a jumper wire spacing device that can simplify the fixture and maintain a stable system due to shortening of working time.

The present invention relates to a fixed polymer jumper support insulator device and a method of installing the jumper wire spacing device.

The steel towers of the transmission line connect a plurality of transmission lines to each other. These transmission lines are installed under conditions that are likely to generate vibration or amplitude due to the climatic influence of wind or snow boiling due to the characteristics of being installed at high altitudes.

When a strong wind blows, the transmission lines are severely shaken upward or downward, so that the transmission lines collide with each other and friction may be caused.

As a result, large-scale safety accidents such as wire damage and wire breakage were caused.

In Korea, there are three transmission lines of 154kV, 345kV and 765kV. In order to prevent the wires from colliding with each other at 154kV and 345kV (2B) T / L, spacers are installed and 345kV (4B), 765kV A spacer damper is mounted to prevent mutual contact between wires and wire vibration due to wind.

Currently, most of the electricity supplied to each customer is transmitted through transmission lines that are installed in almost all areas of the city and the suburbs. These transmission lines include underground lines directly buried with electric power lines in the ground, And a machining line for supporting and installing a power line in the air above a predetermined height using an insulating insulator.

Here, the underground line is advantageous in that it is simple to install because additional auxiliary devices are not required. However, since the ground is directly buried in the ground without a separate insulation medium, the buried power line itself is insulated to the surge voltage and the commercial frequency voltage There is a problem in that an expensive cost is required.

Due to these cost problems, machined lines are now the mainstream of transmission lines, and it is expected that the percentage of machined lines will continue to increase in the future.

The processing line is composed of a power line for transporting power supplied to the actual customer, a processing line for reducing the brain voltage induced in the power line due to the lightning stroke, and a neutral line for attracting the generated current due to the unbalance factor, Depending on the type of support, it can be divided into two types, suspension type and built-in type.

In case of the built-in type, both ends of the power line are fixedly supported on both sides of a steel tower for positioning the machined line above a predetermined height from the ground via separate built-in clamps, In order to prevent the jumper wire crossing the opposite sides of the steel tower from the steel tower by a predetermined distance, a steel pipe for horizontal joining is installed at a predetermined distance from the steel tower, and then the jumper wire And the jumper wire is supported by fixing the jumper wire.

However, after the jumper device is installed, the jumper device is vibrated in a direction in which the jumper device winds by the wind which is blown in a direction perpendicular to the jumper wire. In the case of such vibration, due to safety requirements, It is economical to reduce the amount of vibration as much as possible. Therefore, by adding a weight for inhibiting lateral displacement to the steel pipe for horizontal material, it is possible to reduce the amount of vibration, .

Such a jumper device will include a fixed polymer jumper support insulator and a metal fitting.

1 is a view showing a configuration of a conventional jumper support insulator apparatus.

Referring to FIG. 1, a 345 kV transmission agglomerator may include a fixed polymer jumper support 10, a first yoke 20, and a second yoke 30.

In FIG. 1, the fixed polymer jumper support 10 is connected to the first yoke 20 through a socket clevis, and the wires of the four conductors can be connected to the Y clevis eye through a suspension clamp.

Also, the second yoke 30 is connected to the first yoke 20 through the right clevis eye, and the electric wire of the fourth conductor can be connected to the Y clevis eye through the suspending clamp.

Here, the fixed polymer jumper support 10 may be 3,080 mm, the first yoke 20 and the second yoke 30 may be 388 mm and 400 mm, respectively.

As shown in FIG. The difference between the jumper wire spacing and the fixed polymer jumper wire support 10 causes problems such as the warpage of the metal jigger support 10 and the fixed polymer jumper support 10 as shown in Figs.

Registration Utility Model No. 20-0251758 (polymer insulator for supporting jumper wire of cable)

SUMMARY OF THE INVENTION The present invention was made to solve the above-mentioned problems. The present invention provides a 345kV polymer jumper support insulator using a first, a second yoke, etc. as a metal jumper for supporting a polymer jumper, As a means for securing the distance, although it is necessary to deform at an installation interval of 3.468 m, it can not be satisfied. In the present invention, jumper wire spacing adjustment device is used as a countermeasure means, And it is an object of the present invention to provide a fixed polymer jumper support insulator apparatus capable of maintaining a stable system in accordance with shortening of time.

In addition, as a follow-up measure for problems such as fixed polymer jumper holding device and deflection of the jumper support device due to the difference in jumper wire spacing and anomalies of the metal fittings, the socket clevis, which is connected to the polymer jumper support, And to provide a method of installing a jumper wire spacing device which is easy to install in such a socket eye.

In order to accomplish the above object, a fixed polymer jumper support insulator assembly according to an embodiment of the present invention is a polymer jumper support insulator assembly for use in a processing line. The polymer jumper support insulator assembly includes a fixed polymer jumper support and a fixed polymer jumper support Wherein the jumper wire spacing adjusting device includes a socket jig for connecting the fixed polymer jumper support and the jumper wire gap adjusting device, wherein the jumper wire gap adjusting device includes two Wherein the two adjuster plates are spaced apart by a jumper spacer, the two adjuster plates comprise a first groove that can be fixed to the socket eye, and the length of the gold fixture is adjustable And a bolt, a nut and a corona prevention nut capable of fixing the two adjustment plates.

A method of installing a fixed polymer jumper wire spacing device, which is an embodiment of the present invention, comprises the steps of: (a) locating jumper spacers in corresponding positions in a second groove formed in the lower portion of the jumper plate, ; (B) assembling a jumper wire spacing device (s20) through a second groove of the adjuster plate; (C) connecting the jumper spacers among the jumper wire spacing adjusting devices in connection with the jumper wires (s30); And (d) a step (s40) in which the socket eye connected to the lower end of the fixed polymer jumper support fixes the jumper wire spacing device to the first groove of the two adjustment device plates by s40.

According to an embodiment of the present invention having the above-described configuration, the cost incurred due to the replacement or repair of the conventional fixed type polymer jumper support insulator can be greatly reduced.

Also, since the jumper spacer is used as it is and the jumper wire spacing adjusting device is used, the weight can be greatly reduced, so that the weight reduction effect as shown in the following table can be obtained and the replacement or repair process can be simplified .

Table 1 below shows the breakdown comparison of gold deterioration.

Product Name Quantity Amount (won) Weight (g) Product Name Quantity Amount (won) Weight (g) Socket clevis One 25,000 1.8 Socket Eye One 25,000 1.8 York One 45,000 7.2 Jumper wire spacing
Regulator One 150,000 6.2 Y Cleves Eye One 80,000 7.2 ※ Jumper
Pacer
Reuse of existing minutes Suspension Clamp 4 132,000 10.8 Right angle crevice 4 30,000 1.8 Crevice Eye One 27,500 27,500 York One 40,000 5.3 Sum 13 37,9500 35.9 Sum 13 175,000 8.0

As described above, the use of the jumper wire spacing device does not require the use of a yoke or the like. As a result, the effect of weight reduction and economical achievement can be obtained as shown in Table 1.

1 is a view showing a configuration of a conventional jumper support insulator apparatus.
FIGS. 2 and 3 are photographs showing deflections of a jig supporting device and a jig supporting device, which are disadvantages of a jumper supporting insulator, which is a prior art, respectively.
4 is a view showing a configuration of a jumper support insulator apparatus which is an embodiment of the present invention.
5 is a schematic view showing the configuration of the jumper wire spacing adjusting device.
FIG. 6 is a schematic view showing a configuration of a jumper wire spacing adjusting device according to another embodiment of the present invention.
7 is a view showing the structure of a SP fixing plate used in a 345 kV corridor jumper wire spacing adjusting apparatus according to another embodiment of the present invention.
Figs. 8 (a) and 8 (b) are graphs showing the comparison of the thus obtained 345 kV fixed polymer jumper support insulator with the conventional results.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it is not necessarily the case that it is "directly connected", but also includes the case where it is "indirectly connected" do. Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a configuration of a fixed polymer jumper support insulator according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

The fixed polymer jumper support insulator apparatus according to one embodiment of the present invention is a polymer jumper support insulator apparatus used in a processing line. Such a polymer jumper support insulator device may include a fixed polymer jumper support 10 and a gold alloy that is connected to the fixed polymer jumper support 10.

4 is a view showing a configuration of a jumper support insulator apparatus which is an embodiment of the present invention.

4, the metal fitting includes a socket eye 42 for connecting the fixed polymer jumper support 10 and the jumper wire gap adjusting device 40, and includes a jumper wire gap adjusting device 40 do.

The jumper wire spacing device 40 includes two adjustment device plates 44 that are spaced apart by a jumper spacer 120 and the two adjustment device plates 44 44) includes a first groove (62) that can be fixed to the socket eye (42) and includes a second groove (64) capable of adjusting the length of the groove, wherein the two adjustment plates A bolt (not shown), a nut (not shown), and a corona prevention nut (not shown).

FIG. 5 is a schematic view showing a configuration of a jumper wire spacing adjusting device according to an embodiment of the present invention.

Referring to FIG. 5, the jumper wire spacing adjusting device 40 shows the structure of the 345 kV four conductor jumper wire spacing adjusting device, but is not limited thereto.

The jumper wire spacing device 40 includes an adjustment device plate 44, which may include two grooves. The first groove 62, which is one of the two grooves, is configured to fix the socket eye 42 and the second groove 64 is configured to change the position of the jumper spacer.

In particular, the second groove 64 is configured to have concave and convex portions in the vertical direction so that the three second bolts can be engaged with each other, so that the second bolt can be fastened and fixed to the concave- And the positions of the jumper spacers whose positions are varied may be varied.

The jumper wire spacing device 40 thus configured may include three bolts through the second groove 64 formed therein and may include such bolts, nuts, and a corona prevention nut. The position of the jumper spacer may vary depending on the position of the bolt and the nut as described above. The first, second bolts, nuts, and the corona prevention nuts used in the jumper wire spacing device 40 are generally used for the jumper wire spacing device 40, and thus a detailed description thereof will be omitted.

The jumper spacer 120 may have the shape of a quadrangular column with a hollow square, and a jumper wire (not shown) may be disposed at the end of each vertex of the jumper spacer. The configuration of the jumper wire and the jumper spacer 120 corresponds to a well-known technology area, and thus a detailed description thereof will be omitted.

When the jumper wire length adjusting device 40 is constructed as described above, the jumper wire length adjusting device 40 is arranged in the vertical direction with respect to the polymer jumper support 10, and four jumper wires They can be arranged at equal intervals.

Table 2 shows whether or not to install the polymer jumper support insulator according to the jumper line spacing when the existing polymer jumper support insulator is installed and the comparison when using the polymer jumper support insulator according to one embodiment of the present invention This is a table showing the results.

14 year installation status existing Improving Jumper wire spacing object Share Whether to install problem Whether to install Improvement 3.0m Triplet 2.3% Impossible Replace jumper wire possible Replace jumper wire 3.1 m 15 replications 11.6% Troubleshooting 3.2m Twelve 9.3% possible A gold ancestor 3.3 m Sixteen 12.4% 3.4m Thirty 23.3% Jumper support bending 3.5m 32 24.8%

As can be seen in Table 2 above, the existing fixed polymer jumper support padding apparatus performed a jumper pre-replacement operation for a portion of 13.6%, and the bending phenomenon of the support member and the jumper support reached 69.8% . In contrast, the fixed polymer jumper wire support insulator according to an embodiment of the present invention can be installed in each region regardless of the jumper interval, and shows a jumper replacement ratio of 2.3%. In each device, And the degree of jumper support bending was 0%.

The use of the jumper wire length adjusting device 40 can solve the problem of replacement cost, which is a problem caused by a difference in gap between the polymer jumper support insulator device and the jumper wire. In addition, excessive jumper wire It is possible to solve the problem of the budget waste which is a problem arising from the use of detention.

More specifically, in the case of the prior art for a 345 kV polymer jumper support insulator device, the cost of 379,500 won per 13 gold fixtures costs 175,000 won for the use of the fixed polymer jumper support insulator device according to the present invention Respectively.

In addition, the problem of the jig supporting bending, which is a problem caused by shortage of the jumper line length, does not occur at all in the case of the jumper support insulator apparatus according to the present invention.

Further, the bolts, nuts, and the corona prevention nuts used in the jumper wire spacing adjusting device 40 correspond to the same areas as those of the prior art, and therefore, a detailed description thereof will be omitted. For reference, a corona prevention nut is a countermeasure against the corona phenomenon. The corona phenomenon is a phenomenon in which insulation of air is partially destroyed when a voltage equal to or higher than the threshold voltage is applied to the electric line or insulator, discharging low sound or light, indicating corona loss and lowering transmission efficiency .

FIG. 6 is a schematic view showing a configuration of a jumper wire spacing adjusting device according to another embodiment of the present invention.

Referring to FIG. 6, the jumper wire spacing device is applicable to a 345 kV corridor.

6 has two third and fourth grooves 82 and 84, and the basic configuration thereof is the same as that in the case of a four-conductor configuration. However, in the configuration of the jumper spacer, the SP fixing plate 80, There is a difference in using.

And a fourth bolt used to connect the SP fixing plate 80 with the third bolt used in the portion connected to the socket eye 20 in the case of the 345 kV corridor jumper wire spacing device 90. [ In the case of the corridor body jumper wire spacing device 90, only two bolts are required differently from the four-conductor jumper wire spacing device 40, but the basic configuration is the same.

7 is a view showing the structure of a SP fixing plate used in a 345 kV corridor jumper wire spacing adjusting apparatus according to another embodiment of the present invention.

Referring to FIG. 7, the SP fixing plate 80 includes fifth and sixth grooves 92 and 94 through which jumper lines (not shown) can pass, and the fifth and sixth grooves 92 and 94, A vertical surface including a screw groove 93 vertically disposed on the surface on which the jumper lines 92 and 94 are disposed and which can be connected to the jumper line spacing device 90 may be formed. The SP fixing plate 80 may be referred to as a kind of jumper spacer 120.

It is the same as the four conductor jumper wire spacing device 40 that the length of the connection between the corridor jumper wire spacing device 90 and the SP fixing plate 80 can be varied.

Hereinafter, a description will be given of a method of installing a 345 kV fixed polymer jumper support insulator when a problem occurs.

The method of installing the 345 kV fixed polymer jumper support insulator device may be a process of assembling the four-conductor jumper wire spacing device 40 and installing the assembled four-conductor jumper wire spacing device 40 on the main surface.

The method of installing the fixed polymer jumper support insulator device comprises the steps of: (a) locating jumper spacers 120 in corresponding positions in the second groove 64 formed in the lower portion of the regulator plate 44, (B) assembling the jumper wire spacing device 40 through the second groove of the regulator plate 44 (s20); (C) connecting the jumper spacers 120 of the jumper wire spacing adjusting device 40 with the jumper wires and connecting them (s30); And (d) placing the jumper wire spacing device (40) in a first groove (62) of the two adjustment device plates (44) with respect to the socket eye (20) connected to the lower end of the fixed polymer jumper support And a ball fitting step (s40).

More specifically, the gap between the jumper line and the arm can be checked, and the adjustment plates can be arranged correspondingly (s10). It is possible to complete the jumper wire spacing device 40 simply by disposing the jumper spacers 120 between the adjusting plates 44 and placing the 2-4 bolts in the second grooves 64 s20).

With the jumper wire spacing device 40 thus completed, the jumper wire can be lifted up to the column (electric pole) to which the jumper wire is connected. After this, the jumper spacers 120 can be placed between the adjustment plates 44 (s30). After the jumper spacer 120 is connected, the operation of connecting the polymer jumper support 10 and the jumper wire gap adjusting device 40 can be performed.

This operation is performed by inserting the jumper wire spacing adjusting device 40 into the first groove 62 of the two adjusting device plates 44 so that the socket eye 20 connected to the lower end of the fixed polymer jumper holder 10 contacts the polymer ball It may be a fitting operation (s40).

The jumper wires arranged in the jumper spacer are adjusted at equal intervals and the jumper wire connected through the jumper spacer 120 and the polymer jumper support 10 can be adjusted.

Figs. 8 (a) and 8 (b) are graphs showing the comparison of the thus obtained 345 kV fixed polymer jumper support insulator with the conventional results.

8A and 8B, the result is that the polymer jumper support insulator apparatus according to the embodiment of the present invention shows a result of being unsuitable for 108 loops (FIG. 8A) 8 (b)), it is judged that only 2.8% of the three (lot) is inadequate, and it can be confirmed that the improvement effect is excellent.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

10: fixed polymer jumper support 20: first yoke
30: second yoke 40: jumper wire spacing adjusting device
42: socket eye 44: adjuster plate
62: first groove 64: second groove
82: third groove 84: fourth groove
80: SP Fixing Plate 90: Corridor Jumper Line Spacing Apparatus

Claims (4)

A polymer jumper support insulator apparatus for use in a processing line,
And a metal jumper connected to the fixed polymer jumper support, wherein the metal jig includes a socket eye connecting between the fixed polymer jumper support and the jumper wire interval adjusting device, and the jumper wire interval adjusting device Including,
Wherein the jumper wire spacing adjusting device comprises:
Comprising two adjuster plates,
The two adjustment plates are spaced apart by a jumper spacer,
The two adjustment plates include a first groove that can be fixed to the socket eye,
And a second groove capable of adjusting the length of the metal fittings,
A bolt, a nut and a corona prevention nut capable of fixing two adjustment plates,
The jumper spacer is a SP fixed plate,
The surface of the SP fixing plate has a surface through which jumper wires can pass,
And a fifth groove at the center of the SP fixing plate, which can be connected to the corridor body jumper line gap adjusting device perpendicularly to the both side surfaces. delete delete delete

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