JPH06284537A - Jumper device - Google Patents

Abstract

PURPOSE:To have a distance between a jumper device and a tower cope with voltage elevation by a method wherein a jumper wire is held outward from the tower side by two space keeping members and positioned by a horizontal V-shaped structure. CONSTITUTION:An attachment piece 5 is fixed to an arm A to which insulator devices B and B are attached so as to extend horizontally. A jumper wire 4 is supported by a horizontal V-shaped structure composed of a pair of space keeping members 6a and 6b. That is, the one end of the space keeping member 6a is connected to the approximately center part of a pipe member 2 and the other end is connected to the upper end of the attachment piece 5. In the same way, the one end of the space keeping member 6b is connected to the position near the position to which the space keeping member 6a is connected and the other end is connected to the lower end of the attachment piece 5. Further, the middle parts of the space keeping members 6a and 6b are composed of filled long-rod insulators 6 to provide an electrically non-conducting structure. With this constitution, the transmission voltage of an existing tower T can be elevated to increase a transmission capacity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jumper device, and more particularly to a jumper device suitable for large-capacity power transmission using an existing power transmission line.

[0002]

2. Description of the Related Art Conventionally, this type of jumper device is provided below an insulator device provided at the tip of an arm of a transmission line tower (hereinafter referred to as a steel tower).

That is, a pair of insulator devices are provided so as to extend in mutually opposite directions from the tips of the arms, and power transmission lines are respectively stretched at the tips of the insulator devices. The jumper device is located below the two insulator devices and is provided in parallel with the longitudinal direction of the insulator device so as to electrically connect the power transmission lines stretched to the insulator devices.

[0004]

By the way, in recent years, in order to cope with the increasing demand for electricity, the existing towers have been installed without installing new routes and without rebuilding existing towers for large capacity. Attempts have been made to increase transmission capacity using steel towers.

In the case of increasing the capacity, that is, increasing the transmission voltage, the problem of the distance between the transmission lines stretched between the towers can be solved by interposing a spacer between the transmission lines. There is a problem that it is not possible to increase the capacity by using the existing steel tower unless the space between the steel tower and the steel tower is designed to be able to cope with the increase in pressure.

Therefore, the present invention has been made in order to solve the above problems, and an object thereof is to provide a jumper device capable of coping with an increase in the distance between the jumper device and a steel tower. is there.

[0007]

In order to achieve the above-mentioned object, a jumper device according to the present invention is provided with a pair of feeding devices which are stretched over a pair of insulator devices provided on a tower so as to extend in mutually opposite directions. In the jumper device configured to connect the electric wire with a jumper wire, so as to extend in the vertical direction from the location of the tower where the insulator device is attached,
The mounting piece fixed to the steel tower, one end of which is coupled to the jumper wire, and the other end of which is coupled to the upper end of the mounting piece, and the jumper wire is kept at a predetermined distance from the steel tower side. Having a length located away from,
A first rigid spacing member whose intermediate portion is electrically non-conductive, and one end portion of which is coupled to the jumper wire near the coupling portion of the first spacing member, and the other end portion of which is coupled. Is connected to the lower end portion of the mounting piece, and the intermediate portion has a second rigid spacing member that is electrically non-conductive.

[0008]

In the above structure, the jumper wire is positioned outside the tower by the two spacing members, is in a so-called lateral rotation state, and is positioned by the horizontal V-shaped structure.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of an apparatus according to an embodiment, and shows an example in which one of the plurality of arms A, A ... Of a steel tower T is attached to the arm A in order to simplify the drawing.

The pair of insulator devices B, B has one end connected to the tip of the arm A, and the other ends are oriented in opposite directions. That is, the power transmission lines L and L are stretched at the other ends of the insulator devices B and B, respectively, and the insulator devices B and B are oriented in the stretching direction of the power transmission lines L and L.

The jumper device 1 is a well-known jumper wire 4 consisting of a conductive pipe material 2 and conductive wires 3 and 3 for connecting both ends of the pipe material 2 and both power transmission lines L, L, respectively.
It is composed of a mounting piece 5 and a pair of rigid spacing members 6a and 6b.

As shown in FIG. 2, the attachment piece 5 is fixed so as to extend in the vertical direction from the arm A to which the insulator devices B, B are attached. The pair of spacing members 6a and 6b are configured to support the jumper wire 4 in a lateral V-shaped structure, as shown in FIG. That is, one spacing member 6a has one end coupled to the substantially central portion of the pipe member 2 and the other end coupled to the upper end of the mounting piece 5. Further, the other spacing member 6b has one end coupled to the one spacing member 6a in the same vicinity and the other end coupled to the mounting piece 5.
Is attached to the lower end of.

The lengths of these spacing members 6a and 6b are
The distance between the jumper wire 4 and the steel tower T is a predetermined distance, that is,
The interval is set to sufficiently withstand the ground voltage of the jumper wire 4. The middle portion of the spacing members 6a and 6b is formed by the solid long stem insulator 6 and is electrically non-conductive (insulated).

In FIG. 1, reference numerals 7a and 7b denote wires, which are laid between both ends of the pipe member 4 and the conductive side constituent members of the two insulator devices B and B, respectively.
Has the role of preventing the rocking of.

As described above, in the apparatus of this embodiment, the jumper wire 4 can be traversed by using the pair of spacing members 6a and 6b, so that the transmission voltage can be boosted by using the existing steel tower T. This makes it possible to increase the transmission capacity.

[0016]

In the jumper device according to the present invention, the mounting piece fixed to the steel tower and one end thereof are connected to the jumper wire so as to extend vertically from the location of the steel tower to which the insulator device is mounted. And the other end is coupled to the upper end of the mounting piece and has a length such that the jumper wire is positioned in a direction away from the tower side while keeping a predetermined interval, and the middle part is electrically First formed on non-conductor
And a rigid spacing member, one end of which is coupled to the jumper wire in the same vicinity as the coupling position of the first spacing member, and the other end of which is coupled to the lower end of the mounting piece. Since the intermediate portion is composed of the second rigid spacing member that is electrically non-conductive, the jumper wire can be laterally moved. Therefore, it is possible to increase the transmission capacity even with an existing steel tower.

[Brief description of drawings]

FIG. 1 is a perspective view of an apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line aa of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Jumper device 4 Jumper wire 5 Mounting pieces 6a, 6b Interval holding member B Insulator device T Transmission line steel tower (steel tower)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikazu Haseyama 1031-8, Kikugawa Town, Ogasa County, Shizuoka Prefecture (72) Inventor Katsuo Oribe 3538-2 Kamo, Kikugawa Town, Ogasa County, Shizuoka Prefecture

Claims (1)

[Claims] 1. A jumper device in which each power transmission line stretched over a pair of insulator devices provided in a power transmission line tower so as to extend in mutually opposite directions is connected by a jumper wire. A mounting piece fixed to the transmission line tower so as to extend in the vertical direction from the position of the transmission line tower where is attached, one end of which is coupled to the jumper wire and the other end of which is the mounting piece. Of the first part, which is electrically non-conductive, has a length that is coupled to the upper end of the A rigid spacing member, one end of which is coupled to a portion of the jumper wire near the coupling portion of the first spacing member, the other end of which is coupled to a lower end of the mounting piece, and an intermediate portion of which is Not electrically A second rigid spacing member formed on the conductor, and a jumper device.