KR101537085B1 - Bracket connecting tool of lightning arrester for a power-transmission line - Google Patents

Abstract

The present invention relates to a bracket connecting tool for installing a lightning arrestor for a power transmission line. The bracket connecting tool (200) for installing a lightning arrestor for a power transmission line comprises two insulator assemblies (100) coupled with each other through connecting fittings and arranged between a steel tower side and a wire side of the two conductor-power transmission lines and fixedly supports fixing tools (120, 130) for installing a lightening arrestor to be mounted thereon. The fixing tools (120, 130) fixedly support a pair of cap type-lightning arrestors (110) in the steel tower side in order to install the cap type-lightning arrestors (110) between the two insulator assemblies (100). The bracket connecting tool (200) comprises: a flat plate link (201), lattice brackets (202), and supporting tools (203) for horn holder-ball eyes. The flat plate link (201) has a flat shape and allows the flange parts (123, 133) of the fixing tools (120, 130) to be placed thereon in such a manner where the flange parts (123, 133) are held between the two insulator assemblies (100) while maintaining horizontal states thereof to be assembled through a bolt. The lattice brackets (202) are assembled with lower surface portions of both ends of the flat plate link (201) through a bolt, respectively, to be connected with each one end of the two insulator assemblies (100) and allow the horn holder-ball eyes (101) to be fixedly assembled therewith. Each supporting tool (203) for the horn holder ball eyes is arranged on one side surface of each lattice bracket (202) in such a manner that the supporting tool (203) can be assembled through a bolt. Also, the supporting tools (203) have a flat plate (203a) with a T-shaped structure to cover the horn holder ball eyes (101) in order to fixedly support the horn holder ball eyes (101) and have a bent part (203 b) having a bent end thereof.

Description

Technical Field [0001] The present invention relates to a bracket connecting tool for a lightning arrester for a power transmission line,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bracket connecting metal bracket for installing a transmission line surge arrester, and more particularly, to a girder arrester in a 345 kV two-conductor transmission line, in order to prevent mutual interference in a transmission line, The present invention relates to a bracket connecting metal bracket for mounting a transmission line surge arrester, which is provided so as to stably install a lightning arrester between transmission lines of a transmission line.

As is well known, during the transmission of electricity generated by the power plant to the consumer, transmission within the power plant and substation sections is done through the transmission line that is fixedly supported between the towers by setting the tower at the ground. The effect is different.

Therefore, the design of the support and the configuration of the transmission line are set in consideration of various matters caused in the transmission, but it is very important to supply the electricity while maintaining the transmission line stably without failing from the natural environment which has the greatest influence It is important.

Especially, in recent years, the amount of damages caused by a momentary power outage has been soaring, and the scale of the damages has increased. Therefore, as compensation for the compensation problem is increased, various measures have been taken to provide protection measures.

In this way, although the transmission line is insulated and supported by the pylon arm by various lengths of insulators with different amount of insulators according to the voltage class, if the insulator is destroyed when a lightning strike is made on the transmission line, .

Therefore, an arcing horn is attached to the charging side and the ground side of the armature, respectively, and the arc generated by the lightning surge is guided to the outside of the armature to prevent the breakage of the armature It has been done before.

In recent years, a lightning arrester incorporating a zinc oxide element having a voltage-resistance nonlinear characteristic has been attached to an electromagnet. In a lightning stroke, a lightning surge current is rapidly passed through the lightning arrester to the ground side, Protection is provided to protect the galley and the transmission line.

Particularly, there are various kinds of insulators for the transmission line, but the insulators are classified into a suspended type and a built-in type based on an insulator, which is an insulator.

This is classified according to the form in which the insulator is disposed between the steel tower and the wire and supports the wire. The suspension type is vertically installed between the steel tower and the wire, and the built-in type is horizontal Is installed.

At this time, the side which supports and fixes the insulator in the steel tower is usually the ground side, and the side supporting the electric wire against the insulator is the live part, and the electric power of ultra high voltage flows.

Insulators used as insulators to maintain insulation from such ultra-high voltage electricity use a large number of insulators in areas with high levels of contamination due to the type of pollution in the area where they are used, and a small number of insulators are used in clean areas.

For example, in a transmission line of 154 kV, typically 9 to 14 insulators may be combined with connecting brackets to form a single line (ie, a series of suspensions) or two lines (ie double or embedded) .

Of these, most of the built-in flashers are built-in flashers. The center of the ground yoke is connected to the pylon arm by a separate connecting bracket, and the center of the over yoke is connected to the transmission line support bracket Structure. In the case of attaching the lightning arrester to the above-described two-port built-in lightning arrester, it is possible to use a lightning arrester disclosed in Japanese Unexamined Patent Application Publication No. 2003-217790 (published on July 31, 2003) and Korean Unexamined Patent Publication No. 2010-50428 The lightning arrester is attached to the center of the double insulator in consideration of the stability of the apparatus.

The lightning arrester needs to be slightly spaced from the insulator and fixed in the upper position.

Therefore, as shown in the above-mentioned prior arts, Japanese Patent Laid-Open Publication No. 2003-217790 and Korean Patent Laid-Open Publication No. 2010-50428, a fastening bracket for fixing an arrester is bolted to a central portion of a yoke on the ground side, A lightning arrester installation structure in which a foundation portion of an arrester is fixed to an upper portion of the lightning arrester has been conventionally employed.

However, as the voltage rating increases, the arrester becomes larger and longer.

Therefore, there is a need for a stable fixing bracket in consideration of the shape and strength of the fixing bracket in connection with the installation of the lightning arrester.

On the other hand, a gap type lightning arrester using a zinc oxide element is installed in the processing power transmission line as a countermeasure for preventing the failure of the line due to the frequent occurrence of the lightning stroke due to the abnormal change of the recent climate .

Since the gap type lightning arresters can be retransferred even in case of failure, they are widely used for lightning measures against transmission lines. In recent years, lightning arresters have been compactly manufactured for light weight and porcelain insulators (porcelain type polymer type (polymer type), it is expected to be widely used for improving power quality.

In particular, the gap-type lightning arresters disclosed in the prior art documents are installed so as to maintain a constant gap (also referred to as "horn gap") between the steel tower side and the wire side.

As described above, in the transmission line of 154 kV, in general, 9 to 14 insulators are combined with the connection metal brackets to form one or two lines of wires, which is usually applied when the voltage of the transmission line is 154 kV. In the case of Korea, the installation spacing (ie, the gap) between the steel tower side lightning arresters and the wire side lightning arresters proposed in the KEPCO standard is maintained at 630 mm intervals in the transmission line of 154 kV.

As described above, in the gap-type arrester, opposed to each other, a pair of lightning arresters paired with each other on the side of the pylon corresponding to the front end and the rear end of the insulator on the transmission line, These are installed on the side of the steel tower and the side of the wire through fixing brackets for lightning arresters, together with connecting materials such as crevices, socket eyes, socket crevices, triangular yokes and square links.

Conventionally, fixing brackets for fixing the lightning arresters for fixedly installing the gap-type lightning arresters on the side of the pylon and on the side of the electric wire have been separately provided and used depending on the length of the insulator by the number of insulators.

That is, since the number of insulators used for the 154 kV transmission line varies from 9 to 14 depending on the installation area of the steel tower, various types of fixing brackets for mounting the lightning arrester are required, It is necessary to design and install each arrester installed in the lightning arrester. Therefore, the cost of the product has risen naturally and it has been inefficient in terms of material management and maintenance.

Particularly, although a fixing bracket for mounting a gap-type lightning arrester in a transmission line of 154 kV has been conventionally studied and developed, a standard for installing a gap-type lightning arrester in a 345 kV transmission line with a higher voltage class, The development of fixed brackets is still insufficient, and the need for R & D is emerging.

That is, until now, the KEPCO standard for installing the gap-type arrester in the transmission line of 345 kV and the KEPCO standard for the arrester-type fixing fixture for installing the gap-type arrester have not been established.

In particular, as disclosed in Japanese Unexamined Patent Application Publication No. 2003-217790 and Korean Unexamined Patent Publication No. 2010-50428, a conventional fixing bracket for mounting a lightning arrester for a lightning arrester in a 154 kV transmission line is provided on a separate connecting metal such as a yoke In order to install a gap-type lightning arrester in a transmission line of 345 kV, a metal wire which maintains a distance between the wires such as a yoke and a cross tie link is used for the two-conductor transmission line, It is possible to fix and fix the fixing bracket for mounting the gap type lightning arrester on the side of the iron tower. However, in such a case, a separate bracket such as yoke or cross tie link may not be used on the side of the steel tower. There was no way to fix the fixing bracket.

That is, the yoke is a flat isosceles triangular metal plate, and the ends of the yokes are connected to both ends of the base by means of a metal bracket.

In addition, the corner portions sandwiched between the isosceles are connected to the steel tower arm through separate steel tower brackets. By supporting these two ends of the two pairs of yokes by these yokes, the two pairs of yokes can be maintained parallel to each other and can be dispersed and supported by bisecting the tension caused by the transmission line.

In the yoke, two bolt insertion holes are formed at left and right symmetrical positions close to the base.

However, in the case where yoke or cross tie link is not used on the side of the pylon of the 345 kV two-conductor transmission line as described above, the necessity of a separate bracket connecting bracket capable of assembling and fixing the fixing bracket for mounting the light- And the like.

1. Japanese Unexamined Patent Application Publication No. 2003-217790 (published on July 31, 2003, name: Lightning Device) 2. Korean Laid-Open Patent Publication No. 2010-50428 (published on May 13, 2010, entitled "

The present invention has been developed to provide a bracket connecting bracket for mounting a lightning arrester capable of stably mounting a gap-type lightning arrester in the 345 kV two-conductor transmission line as described above. In particular, the object of the present invention is to provide a two- In order to prevent the mutual interference in the transmission line, the lightning arrester can be stably installed between the transmission lines of the two towers on the side of the steel tower so that the fixing bracket for installing the lightning arrester can be stably assembled and fixed. And to provide a bracket connecting bracket for installing a surge arrester equipped with a transmission line.

According to an aspect of the present invention, there is provided a two-conductor transmission line including a pair of gap-type lightning arresters connected between a pylon top side and a power line side by connecting fittings, A bracket connecting metal bracket for mounting a transmission line lightning arrester capable of supporting and fixing a fixing bracket for mounting a lightning arrester that supports and fixes a lightning arrester on the side of a steel tower for installation, said bracket connecting metal bracket comprising: A flat plate link in which a flange portion of a fixing bracket for mounting a lightning arrester can be seated and assembled into a bolt and a horn holder bolt assembled in a lattice structure and connected to one end of the flange link at both ends of the flat link, And a hinge bracket which is arranged to be assembled with a bolt on the side of the grid bracket, To make while having a flat structure of the T-shape has a feature that the one end is folded horn holder using mounting brackets provide a lightning arrester mounting bracket connection bracket to the transmission line consisting of a bent portion is formed bolah binary.

Further, according to the second embodiment of the present invention, in the two-conductor transmission line, one pair of connection arms are connected and arranged between the pylon top and the wire side, and a pair of gap-type lightning arresters A bracket connecting bracket for mounting a surge arrester for mounting a surge arrester, the bracket connecting bracket having a fixing bracket for mounting a lightning arrester and a bracket connecting bracket for mounting a transmission wire so as to face each other, A flat plate bracket having a flat plate structure in which a bolt is fastened between the vertical fixing table and the side surface of the counterweight in a surface contact state, and a horn holder which is arranged so as to be bolt assembled on the side surface of the flat plate bracket, And has a T-shaped flat plate structure so as to be able to be supported and fixed by the horn holder bolt And a bracket connecting metal for installing a transmission line surge arrester.

According to the present invention, when a yoke, which is a connection metal, can not be used when a gap-type lightning arrester is installed in a 345 kV two-conductor transmission line, it is possible to stably mount and fix a fixing bracket for mounting a lightning- It is possible to prevent mutual interference in the transmission line as much as possible.

1 is a perspective view showing a state in which a gap-type lightning arrester and a fixing bracket for mounting a variable surge arrester used in a two-port built-in flasher in a 345 kV two-conductor transmission line according to the first embodiment of the present invention are assembled on a bracket connecting metal.
2 is a view showing an assembled state of a gap-type lightning arrester used for a pylon top side and a wire side of a two-row built-in type flasher, a fixing bracket for installing a variable surge arrester, and a bracket connecting metal in a 345 kV two-conductor transmission line according to the first embodiment of the present invention Fig.
3 is a view showing an assembled state of a gap-type lightning arrester used for a pylon top side and a wire side of a two-row built-in type flasher, a fixing bracket for mounting a variable surge arrester, and a bracket connecting bracket in a 345 kV two-conductor transmission line according to the first embodiment of the present invention FIG.
FIG. 4 is an enlarged perspective view showing the assembled state of a fixing bracket for mounting a steel tower side lightning arrester and a bracket connecting metal used in a double-row built-in flasher in a 345 kV two-conductor transmission line according to the first embodiment of the present invention;
FIG. 5 is a plan view showing an assembled state of a steel tower side bracket connecting metal used in a double-row built-in relay in a 345 kV two-conductor transmission line according to the first embodiment of the present invention. FIG.
6 is a side view showing an assembled state of the steel tower side bracket connecting bracket used in the double-row built-in flasher in the 345 kV two-conductor transmission line according to the first embodiment of the present invention.
7 is a perspective view showing an assembled state of a fixing bracket for mounting a fixed type surge arrester used in a double-layer built-in flasher in a 345 kV two-conductor transmission line in the first embodiment of the present invention.
8 is a view showing a state in which a gap-type lightning arrester and a fixing bracket for mounting a lightning arrester used on the side of the pylon of the double column suspensions and the wires on the 345 kV two-conductor transmission line according to the first embodiment of the present invention are assembled on the bracket connecting metal .
Fig. 9 is a plan view showing the assembled state of the gap-type lightning arrester used for the double-consecutive suspensions in the 345 kV two-conductor transmission line according to the first embodiment of the present invention, Degree.
10 is an enlarged fragmentary perspective view showing an assembled state of a fixing bracket for installing a steel tower side lightning arrester and a bracket connecting metal used in a double-row suspension type relay in a 345 kV two-conductor transmission line according to the first embodiment of the present invention.
11 is a perspective view showing a state in which a gap-type lightning arrester and a fixing bracket for installing a lightning arrestor are assembled on a bracket connecting metal used for a series of suspensions in a 345 kV two-conductor transmission line according to the second embodiment of the present invention.
12 is a side view of the gap-type lightning arrester used for a series of suspensions in the 345 kV two-conductor transmission line according to the second embodiment of the present invention and the side view of FIG. 9 showing the assembling state of the light- Degree.
FIG. 13 is an enlarged perspective view showing the assembled state of a fixing bracket for mounting a steel tower side lightning arrester and a bracket connecting metal used for a series of suspensions in a 345 kV two-conductor transmission line according to a second embodiment of the present invention.
FIG. 14 is a plan view and a front view showing an assembled state of a bracket connecting bracket used for a series of suspensions in a 345 kV two-conductor transmission line according to a second embodiment of the present invention; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In order to explain the preferred embodiments of the present invention, the thicknesses of the lines and the sizes of the components shown in the attached drawings may be exaggerated or omitted for clarity and convenience of description, Terms to be given are terms defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator.

As described in the background art, a product for a fixing bracket for mounting a gap-type lightning arrester in a transmission line of 154 kV has been developed and used in the related art. However, recently, in order to install a gap-type lightning arrester in a transmission line of 345 kV, It is a fact that efforts have been made to develop KEPCO standard and to be defined as KEPCO standard.

Accordingly, in the process of installing the lightning arrester-type fixing bracket for installing the gap-type lightning arrester in the transmission line of 345 kV, the connecting material such as the yoke can not be connected to the pylon in the two-conductor transmission line, And to provide a new type of bracket connecting bracket capable of stably mounting and fixing the fixing bracket for mounting the lightning arrester.

In other words, as a result of various experiments, it has been found that, in the transmission line of 345 kV, 16 ~ 25 insulators are usually combined with connecting brackets according to the voltage class to form one line (that is, one line suspension type line) In the case of installing a gap-type lightning arrester in a transmission line of 345 kV, it is necessary to install the gap between the pylon-side lightning arrester and the wire-side lightning arrester (that is, the horn gap) It is preferable to maintain a gap of 630 mm in the transmission line of the conventional 154 kV, but it is preferable to maintain the interval of 1400 mm in the transmission line of 345 kV.

As a result, there is a limit in maintaining the spacing of the horn gap at intervals of 1400 mm with the fixing bracket for installing the gap-type lightning arrester of the 345 kV transmission line according to the prior art fixing brackets according to the prior art, A need arises for a new type of fixing bracket for mounting a lightning arrester and a separate connecting bracket for supporting and fixing the fixing bracket for installing a lightning arrester used in installing a gap type lightning arrester in a transmission line of 345 kV is required .

As described in the prior art, in order to connect the pylons to the steel tower side and the wire side in the transmission line, connection related materials such as spherical ball eye, ball crevice, socket eye, socket crevice, triangular yoke, And when a conventional lightning arrester is to be installed, the fixing bracket for mounting the lightning arrester is assembled on the yoke among the above-mentioned connection-related materials.

However, in the case of a two-conductor transmission line, the yoke can not be used among the connecting members connected to the pylon of the steel tower.

Thus, the present invention provides a gap-type lightning arrester installed in each insulator through a fixing bracket for installing a lightning arrester when a double insulated double insulated, double insulated double insulated, It is desirable to provide a bracket connecting metal bracket capable of stably assembling and fixing the fixing bracket for mounting the lightning arrester when the yoke can not be used when each of the insulators is to be connected to the steel tower as described above And has its constitutive features.

1 to 6, in the first embodiment of the present invention, the fixing brackets 120 and 130 for mounting the lightning arrester applied to the two-piece built-in type flasher 100, and the fixing brackets 120 and 130, And a bracket connecting metal fitting 200 for assembling and fixing the mounting bracket 200 is shown.

First, the fastening bracket fixing bracket 120 is a fastening bracket for supporting the gap-type arcing device 110 on the insulator 100 composed of a plurality of insulators at a transmission line of 345 kV.

As shown in FIGS. 1 to 4, one side of a gap-type lightning arrester 110 installed on the side of a steel tower to which a two-port built-in flasher 100 is applied in a 345 kV two-conductor transmission line, The other side of the gap-type lightning arrester 110 installed on the electric wire side is fixed to the insulator 100 through a fixing bracket 120 fixed on the bracket connecting metal 200 connected to the metal fitting 103 Is fixedly mounted on the cross tie link (210) disposed between the connected connecting metal bracket (102) and the extruded male clamp (104) through a fixing bracket (120) for installing a lightning arrester.

Here, in the transmission line of 345 kV, it is preferable that the horn gap between the gap-type lightning arresters 110 is designed to maintain a constant interval, for example, 1400 mm.

To this end, as shown in Figs. 1 to 4, a fixing bracket 120 for a lightning arrester installation used in the double-layer built-in flasher 100 according to the first embodiment has a variable structure And a gap-type lightning arrester 110 in a transmission line of 345 kV in which a plurality of insulators 100 made of insulators are used, can be installed on the side of the pylon and on the side of the wire, respectively.

That is, the fastening bracket fixing bracket 120 has a vertical plate-like inclined fixing base 121 having a certain thickness and width of a metal material and having a predetermined portion bent obliquely, And a lightning arrestor mounting base 124 capable of variably coupling the gap-type lightning arrester 110 in a state where the gap-

At this time, one end of the inclined fixing table 121, that is, an upper end portion thereof, is provided with an upper engaging portion 122 having a plurality of bolt coupling holes which are opposed to the lightning arrester mounting portion 122 and the arrester coupling portion 111, The other end, that is, the lower end portion of the inclined fixing table 121 is composed of a flange portion 123 which is coupled in a T-shaped cross-sectional structure and can be bolted to the bracket connecting metal bracket 200 and the cross tie link 210 in a surface- have.

Particularly, the operator can select only one of the four bolts of the bolt coupling holes to be installed according to the number of the bolts of the pneumatic cylinder 100, So that the gap of the gap-type lightning arrester 110 can be kept constant.

The fixing bracket 120 for mounting the variable-type arrester installed in the gap-type lightning arrester 110 is advantageous in workability because it does not have to devote special (or finer) efforts to maintain the gap of the gap when the gap-type arrester 110 is installed in the field.

Of course, in order to install the gap-type lightning arrester 110 in the transmission line of 345 kV on the side of the steel tower and the side of the electric line, the fixing bracket 120 for installing the lightning arrester can not be provided in a variable form. That is, as shown in Fig. 7, the fixing bracket 130 for fixing the lightning arrester may be used.

7, the fixing bracket 130 for fixing a lightning arrester includes a slant fixing table 131 having a predetermined thickness and width of a metal material and having a predetermined portion bent obliquely and having a vertical plate- One end of the inclined fixture 131, that is, an upper end portion thereof, is provided with an upper engaging portion 132 formed with four bolt-fitting holes that are opposed to the arrester coupling portion 111, The other end, that is, the lower end portion, is composed of a flange portion 133 which is coupled with the T-shaped cross-sectional structure and can be bolted to the bracket connecting metal fitting 200 and the cross tie link 210 in a surface contact state.

1 and 4 to 6, a bracket connecting metal bracket 200 according to the present invention includes a horn holder 200 for connecting one end of a rotor 100 at the side of a steel tower of a 345 kV two-conductor transmission line, When connecting the ball eye 101 and the steel tower side connecting fitting 103, when a yoke known in the art can not be used, the center of the two pairs of internal fittings 100 connected to the steel tower side connecting fitting 103 This is a newly developed connection bracket for assembling and fixing the fixing brackets 120 and 130 for mounting the lightning arrester.

4 to 7, the bracket connecting metal bracket 200 includes a pair of flanges 123 and 133 of the fixing brackets 120 and 130, The flat plate link 201 is fixed to the flat link 201 by bolts and is assembled in a lattice structure at both bottom portions of the plate link 201 and connected to one end of the punch 100. The hinge holder 201 101 and a hinge bracket 202 disposed on both sides of each of the grid brackets 202 at both ends of the flat plate link 201 so as to be assembled in a bolt manner to surround the horn holder ball eye 101 And a horn holder bolt support metal fitting 203 for supporting and fixing the horn holder 203 to the horn holder 203.

At this time, the flat plate link 201 is a plate having a plate-like structure similar to a cross tie link 210 conventionally used for maintaining a gap between the power line sides in a two-conductor transmission line, and is made of a metal material.

The lattice bracket 202 is a connecting bracket for connecting a metallic material having a translator shape. One end of the lattice bracket 202 is inserted into the one end bending portion 203b of the hinge bracket 203, An incision groove 204 is formed.

The horn holder holding metal fitting 203 has a T-shaped flat plate 203a and one bent end 203b. The T-shaped flat plate 203a is provided with a lattice bracket 202, (For example, three) bolt holes are formed at regular intervals (intervals at which the horn holder ball eye 101 can be inserted and fixed), and the horn holder bolt support bracket 203 The bent bending portion 203b of the horn holder 203b is fitted to the hook 101a of the horn holder ball eye 101 when the hinge bracket 203 for the horn holder bolt is bolted to the lattice bracket 202, And is engaged with the cutout groove 204 of the cutout 202.

That is, the horn holder ball supporting metal fitting 203 serves to tightly support and fix the horn holder ball eye 101 connected to one end of the retractor 100 through the grid bracket 202, do.

Particularly, the spacing of the grid brackets 202, which are connected and fixed to both ends of the flat plate link 201 in the bracket connecting metal bracket 200, is set to be shorter than the spacing interval of the double- The one end of the two-piece built-in type insulator 100 in the two-conductor transmission line is connected to the two-piece built-in type insulator 100 (100) through the horn holder ball eye 101, And the horn holder ball eye 101 connected to one end of the horn holder ball eye 101 is naturally coincident with the arrangement interval of the horn holder ball eyes 101. Thus,

Meanwhile, the bracket fittings 200 according to the first embodiment of the present invention are equally applicable to the double-row suspensions.

That is, FIGS. 8 to 10 show the installation state of the gap-type lightning arrester 110 installed on the side of the steel tower and the electric wire side to which the double-row suspension type 100 is applied in the 345 kV two-conductor transmission line.

As shown in FIGS. 8 and 9, since the suspension tower 100 is installed in such a manner that the steel tower side of the transmission line is located at the upper portion and the electric wire side is located at the lower portion and hangs vertically, the gap type lightning arrester 110 The counterweight 160 is mounted on the opposite side of the lightning arrester 110 to maintain a balance with the lightning arrester 110 and the arc horn 170 is mounted on the installation site of the lightning arrester 110 Structure.

That is, a horn holder mounting bracket is provided in a clamp fixed to the arm plate of the steel tower, and yokes 220 and 240, which are horn hold mounting fittings, are installed in the suspension clamps 105 and 106 (see Figs. 9 and 12) And an arc horn 170 is installed in the yokes 220 and 240. This configuration is a general construction of a suspending type rotor.

When it is not possible to use a yoke which is a horn holding member on the side of a pylon of a transmission line in order to install a gap type lightning arrester in a state where such a suspending type double loop relay is installed on a 345 kV two- The connecting bracket 200 can be used.

However, the fixing bracket 140 for use in the lightning surge arrester used in the suspension type double insulator in the present invention is different from the fixing bracket 130 for fixing the built-in double arrester fixed type lightning arrester, The configurations of the upper coupling portion 142 and the flange portion 143 located at the upper and lower ends of the vertical fixing table 141 are all the same.

10, the bracket connecting metal bracket 200 is used on the side of the pylon of the suspensions 200, so that the gap-type lightning arrester 110 is supported around the bracket connecting metal bracket 200 The fixing bracket 140 for fixing the lightning arrester to be fixed and the counterweight 160 are fastened and fixed so as to face each other.

On the other hand, Figs. 11 to 14 show a state in which the gap-type lightning arrester is installed in the suspending type single photodetector.

As shown in FIGS. 11 and 12, the suspensions 100 are arranged in a line between the pylon of the transmission line and the electric wire, and the gap-type lightning arresters 110 The structure of the fixing bracket 150 for fixing the steel tower side lightning arrester to be installed and fixed and the bracket connecting metal bracket 230 for supporting and fixing the fixing bracket 150 for this lightning arrestor are inevitably deformed.

In other words, in the suspending type single-lens reflex camera 100, since a single row of the refractory 100 is connected to the clamp fixed to the arm plate on the side of the pylon via the horn holder ball eye 101, 13, since the flange is unnecessary at the lower end of the vertical fixing table 151 constituting the fixing bracket 150 for mounting the steel tower side lightning arrester in the transmission line, and since there is no flange portion in the vertical fixing table 151, The structure of the bracket mounting bracket 230 for connecting the bracket mounting fixing bracket 150 and the counterweight 160 to the bracket mounting bracket 200 shown in the first embodiment is the same as that of the first embodiment. And is designed in a modified structure.

Therefore, the structure of the bracket connecting bracket used on the side of the pylon to which the suspending type single-ply brace according to the second preferred embodiment of the present invention is applied will be described as follows.

11 to 14, the bracket connecting bracket 230 according to the second embodiment of the present invention connects and supports the vertical fixing table 151 and the counterweight 160 of the fixing bracket 150, And a horn holder bolt supporting bolt 232 bolted to the flat plate bracket 231 at a predetermined interval.

The flat plate bracket 231 is a connecting bracket for connecting metal members having a flat plate shape. The one end of the flat plate bracket 202 is inserted into the one end bending portion 232b of the hinge holder using the horn holder bolt 232, (Not shown).

The flat plate bracket 231 having the above structure is bolted to the vertical fixing table 151 of the lightning arrester mounting fixing bracket 150 and the counterweight 160 in a surface contact state using a flat plate surface.

At this time, since the ends of the suspending-type single punch 100 on the side of the steel tower are connected through the horn holder ball eye 101, the horn holder bolt supporting bracket 232 ) Is used.

The horn holder bolt supporting bracket 232 has the same shape as the horn holder bolt supporting bracket 203 constituting the bracket connecting bracket 200 according to the first embodiment, As shown, the horn holder holding bracket 232 has a T-shaped flat plate 232a and a bent portion 232b bent at one end thereof. The T-shaped flat plate 203a is provided with a flat plate bracket A plurality of (for example, three) bolt holes are formed at predetermined intervals (intervals at which the horn holder ball eye 101 can be inserted and fixed) The bent portion 232b of the one end of the metal fitting 232 is engaged with the portion of the horn 101a of the horn holder ball eye 101 when the hinging holder 232 for the horn holder bolt is bolted to the flat plate bracket 231 And is engaged with the cutout groove 233 of the flat plate bracket 231 to be engaged.

In the transmission line to which the suspensions 100 are applied, since the wire has a two-conductor structure, the yoke 240 of the triangular structure is used to connect the ends of the receptacle 100 to the connecting bracket 102 And the insulated wires (i.e., transmission lines) of the two conductors are supported and fixed by using the plurality of suspension clamps 106 via the two vertexes of the yoke 240. [

Since the triangular yoke 240 is used as a connecting material on the electric wire side of the suspension type single-loop relay 100 as described above, it is possible to provide a fixing device for fixing the electric wire side lightning arrester 110 of the gap- The metal bracket 150 is composed of a vertical fixing table 151 having a vertical plate-like structure and having a constant thickness and width of metal. One end of the vertical fixing table 151, that is, The other end, that is, the lower end portion of the vertical fixing table 151 is coupled with the T-shaped cross-sectional structure, and is coupled to the yoke 240 And a flange portion 153 that can be bolted to the surface contact state.

However, since the various connecting materials such as the yoke 240 and the connection clamp 106 are installed and fixed in two directions in the process of installing the gap type lightning arrester 110 on the electric wire side, The shape of the fixed bracket 120 for fixing the variable-type arrester installed on the side of the steel tower of the first embodiment is somewhat different from the shape of the fixing bracket 120 for mounting the variable-type arrester, It is adopting a differentiated form.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments, but is capable of various changes, modifications and equivalents.

Accordingly, the above description should not be construed as limiting the scope of the present invention defined by the limits of the following claims.

100: Agatha Lynn 101: Horn Holder Ball Eye
102: Wire side connection bracket 103: Steel tower side connection bracket
104: Extruded human clamp 105, 106: Suspension clamp
110: gap-type arcing unit 111: arrester coupling unit
120, 130, 140, 150: Fixing bracket for arrester installation
121, 131: an inclination fixing member 122, 132, 142, 152:
123, 133, 143: flange portion 124: arrester mounting portion
141, 151: vertical fixing table 160:
170: arc horn 200, 230: bracket connecting bracket
201: flat plate link 202: grid bracket
203, 232: horn holder bolt support bracket
203a 232a: T-shaped flat plates 203b, 232b:
204, 233: incision groove 210: cross tie link
220, 240: yoke 231: flat plate bracket

Claims (2)

In the two-conductor transmission line, two pairs of pylons 100 are connected and arranged between the pylon top side and the power line side by connection fittings, and a pair of gap-type lightning arresters 110 are installed between the pylon 100 A bracket connecting metal bracket (200) for mounting a transmission line insulated armouring apparatus capable of supporting and fixing the fixing brackets (120, 130) for fixing the lightning arrester (110)
The plate bracket 200 has a plate-like flat link 201 (see FIG. 1) that can be assembled by bolting the flange portions 123 and 133 of the fixing brackets 120 and 130 while maintaining horizontal alignment between the double- A lattice bracket 202 assembled in a lattice structure on both bottom end portions of the flat plate link 201 and capable of fastening and fixing a horn holder ball eye 101 connected to one end of the retractor 100, And has a T-shaped flat plate 203a so as to be able to be supported and fixed by a structure that is bolt-assembled on the side surface of the lattice bracket 202 and surrounds the horn holder ball eye 101, and has a bent part 203b And a horn holder bolt supporting bracket (203) having a horn holder bolt (203) formed thereon.
A pair of gap-type lightning arresters 110 are connected to the counterweight 100 by means of connecting brackets 100, and a pair of gap-type lightning arresters 110 are connected to the counterweight 100 (150) for fixing the lightning arrester (110) on the side of the steel tower and a bracket connecting metal bracket (230) for mounting the transmission line lightning arrester facing the counterweight (160) As a result,
The bracket connecting metal bracket 230 includes a flat plate bracket 231 having a flat plate structure that is bolted in a surface contact state between the vertical fixing table 151 of the lightning arrester fixing bracket 150 and the side surface of the counterweight 160, And has a T-shaped flat plate 232a structure so as to be bolt-assembled to the side surface of the flat plate bracket 231 so as to be supported and fixed by a structure that surrounds the horn holder ball eye 101 connected to one end of the latch assembly 100 And a horn holder bolt supporting bracket (232) having a bent bent part (232b) formed at one end thereof.

Images