JP2688784B2 - Low-inductance multi-conductor power transmission line insulator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a low-inductance multi-conductor transmission line insulator device for a high-efficiency transmission line with reduced line inductance.

(Prior Art) The conventional multi-conductor transmission line is as shown in FIG.
The insulator device (30, 30) is connected to the steel tower (10, 10) and each constituent conductor (50, 50) is connected between the line side yokes (60, 60).
It was stretched at a constant interval of about 500 mm, and the spacer (40) held this interval.

However, in order to stably transmit a large amount of power over a long distance, it became clear that the line inductance generated by the current flowing through each of the constituent conductors (50, 50) must be made as small as possible. Increase the number of conductors, or even if the number of conductors is
High-efficiency power transmission lines with large inductance of 0 to 2000 mm and reduced inductance have been studied.

However, in order to increase the distance between the constituent conductors in this way, it is necessary to use a Gaishi device with a large gap between the Gaishi stations as a whole, and then the tower arm and the tower itself must be enlarged. There was a problem that the steel tower could not be used and that the construction work such as transportation, assembly and installation became difficult.

(Problems to be Solved by the Invention) In order to solve this problem, it is conceivable to increase the distance between the constituent conductors from the connecting portion between the tensile strength reinforcement and the constituent conductors. However, in doing so, each constituent conductor expands at a relatively steep angle, and then each constituent conductor is arranged in parallel, so that each constituent conductor has two bent portions. In addition, a special spacer is required for this bent portion, which complicates the equipment and construction required for installation.

Therefore, there is a demand for a insulator device that allows large intervals between the constituent conductors even if the arm of an existing steel tower is used without largely changing the earth side attachment portion of the insulator device.

(Means for Solving the Problem) The present invention has been invented to solve the above-mentioned problem, and as the distance between the Gaishi stations that stretches the respective constituent conductors of the multiconductor transmission line increases toward the filament side. It is a low-inductance multi-conductor transmission line insulator device characterized by a spread configuration.

(Operation) In the present invention, each component of the multi-conductor power transmission line is connected by connecting one point or multiple points on the ground side of the Gaishi ream, which stretches each constituent conductor of the multi-conductor power transmission line, and by connecting the spacer to the line side. Since the gap between conductors that stretches the conductor expands toward the line side, the weight increases by the amount of the spacer compared to the conventional method, but
This makes it possible to stretch each constituent conductor with a large interval without changing the weight of a conventional Gaishi continuous device, and thus it is possible to construct a low-inductance multiconductor transmission line.

In this case, if the steel tower has a safety design that can withstand an increase in the weight of the spacer, the power transmission line can be installed by using the conventional steel tower as it is.

Example Next, an example will be described with reference to the drawings.

As shown in FIG. 1, the Gaishi connecting device (3) connected to the arm section (2) of the steel tower (1) by one-point connection or multi-point connection is radially arranged toward the line side, and the Gaishi connection ( Spacer (4) is connected to the line side of (3,3,3 ...) to widen it, and each constituent conductor (5,5,5 ...) of the multiconductor transmission line is stretched. , 3,3, ...) is designed to widen toward the filament side. Then, the constituent conductors (5,5,5 ...) are connected to the wire joints of the Gaishi ream (3,3,3 ...) whose width is widened on this line side by ordinary connecting means and clamped. did.

With the above configuration, a low-inductance power transmission line in which the space between the constituent conductors was widened using the existing steel tower could be constructed.

(Effects of the Invention) As described in detail above, in the present invention, a low-inductance multiconductor characterized by a structure in which the distance between the Gaishi links that stretches the constituent conductors of a multiconductor transmission line widens toward the filament side. Since the transmission line insulator is used, each constituent conductor does not spread at a relatively steep angle, and therefore, each constituent conductor does not have two bent portions, and
There is no need to increase the size of the earth mounting part of the insulator device,
As a result, there is an effect that even if the arm of the existing steel tower is used, the gap between the respective constituent conductors can be widened and the insulator device which can be attached to the handle steel tower can be completed, and the present invention contributes greatly to the industrial development. There is something.

[Brief description of the drawings]

FIG. 1 is a conceptual side view of an embodiment of the present invention, and FIG. 2 is a conceptual side view of a conventional multiconductor transmission line. 1 ... Tower; 2 ... Arm part; 3 ... Gaishi connection device; 4 ... Spacer; 5,5,5, ... Each constituent conductor; 10 ... Tower; … Spacer; 50,50, …… Each constituent conductor; 60,60
...... Line side yoke.

Claims (1)

(57) [Claims] 1. A low-inductance multi-conductor transmission line insulator device having a structure in which the distance between the insulators that stretches the respective constituent conductors of the multi-conductor transmission line expands toward the line side.