RU2811092C1 - Device for fixing short circuit indicator on wire of overhead power line - Google Patents

Abstract

FIELD: electric power industry.

SUBSTANCE: invention is intended to install a short circuit indicator (SCI) on the wire of an overhead power line (OPL). A device for attaching a short circuit indicator (SCI) to an overhead power line wire is located in the upper part of the square SCI case. It contains two brackets equipped with recesses: a clamping one and a holding one, designed to encircle and hold an overhead power line wire between them. The brackets are mounted on axes fixed to the base and can be rotated on these axes. The clamping bracket is equipped with a spring located on its axis, designed to move this bracket towards the holding bracket. The holding bracket is designed to interact with a folding hold lever, holding it stationary relative to the base in the “SCI online” position. The bottom of the clamping bracket is designed to interact with the horizontal surface of the base. The clamp stop is equipped with a blind hole. A protrusion is inserted on the side surface of the clamping bracket, interacting with a spacer rod, the second end of which is located in the blind hole of the clamping bracket stop. There is a strong thread tied at one end to the insulating rod and the other end to the spacer rod.

EFFECT: fulfilment of the purpose.

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Description

The invention relates to the field of electrical power engineering and can be used to install a short circuit indicator (SCI) on an overhead power line (OHPL) wire.

Devices for ICP of various types are known from the state of the art, which can be installed on an overhead power line without disconnecting the current supply, using insulating rods.

A similar device is known, consisting of two rotary brackets, which, when installed in the insulating rod shell, are moved apart and held in an unclamped state until they are installed on the overhead power line by the brackets of the insulating rod shell. When bringing the device to the wire, the installer, with a bottom-up motion, presses the device bed against the wire with force, while the holding clamps of the gripper in the extended state disengage with the gripping brackets of the rod and the brackets of the device tightly cover the wire (see - OKB ASTRON. Means for detecting a short short circuits of overhead power lines ASTRON-7080. Operating manual. ALKYA. 425148.001 RE. Moscow 2009)

The disadvantage of the analogue is that when removing the ICZ from the wire, the grip of the rod catches the ICZ inserted into it and the installer, by moving the rod downwards, tears the ICZ from the wire. In this case, the applied force to remove the IKZ from the wire is approximately 30 kg s (300 N)

A similar device is known, consisting of one clamping bracket that presses the wire to the base of the device, which is part of the IKZ body. (see - Installation of IKZ "Antrax" without disconnecting the line voltage https://voutu.be/xe0Ej15pJVY)

The disadvantage of the analogue is that when removing the ICP from the wire, great efforts have to be made, which requires great physical exertion from the performer, in addition, the operations are difficult to perform and create an increased risk of injury when working at height.

The closest set of features is a device for attaching a short circuit indicator (SCI) to an overhead power line wire, installed in the upper part of the IKZ housing, which contains two brackets: a clamping one and a thrust one, designed to encircle and hold the overhead power line wire between them, the brackets mounted on axes fixed to the base of the clamp, and have the ability to rotate on these axes, while the clamping bracket is equipped with a spring designed to move this bracket towards the thrust bracket, the thrust bracket is equipped with a spacer rod-guard capable of holding the thrust bracket from the clamping bracket on a distance that allows the wire to pass into the clamping space of the brackets, and the stop bracket is equipped with a folding stop lever that holds it in a stationary state relative to the base of the clamp in the “IKZ on the wire” position, while in the “IKZ on the wire” position between the clamping bracket and the stop on There is a gap at the base of the clamp that allows the thrust bracket to be moved out of place when the folding thrust lever is turned upward due to the force developed by the clamping bracket (see RF patent No. 2714449 IPC H01R 4/00, H02G 7/05, published on February 17, 2020, bulletin No. 5 selected for prototype)

The technical problem solved by the invention, expanding the arsenal of technical means.

The technical result is the solution to a given technical problem by creating a technical solution alternative to a known solution (creating a variant of a known solution) and the implementation of the specified purpose by the invention.

The specified technical result is achieved by the fact that a device for attaching a short circuit indicator (SCI) to an overhead power line wire, located in the upper part of the SCI housing, contains two brackets equipped with recesses: a clamping one and a thrust one, designed to enclose and hold the overhead line wire between them power transmission, the brackets are installed on axes fixed to the base, having the ability to rotate on these axes, and the clamping bracket, which has a stop, is equipped with a spring placed on its axis, designed to move this bracket towards the thrust bracket, which is made to interact with the folding thrust lever , holding it in a stationary state relative to the base in the “IKZ on the wire” position and a spacer rod that holds the clamps in the open state, the peculiarity is that the bottom of the clamping bracket is designed to interact with the horizontal surface of the base, the stop of the clamping bracket is equipped with a blind hole on the side surface In the clamping bracket, a protrusion is inserted that interacts with a spacer rod, the second end of which is placed in the blind hole of the clamping bracket stop.

Additionally, a device for attaching a short circuit indicator (SCI) to an overhead power line wire is characterized in that the housing is made, for example, square.

An example of a specific implementation of the claimed invention is illustrated in the drawings.

Fig. 1 - device at the time of installation on a power line wire.

Fig. 2 - device installed on a power line wire.

Fig. 3 - device at the moment of removing the power line from the wire.

The drawings show.

Overhead power line wire 1, recess 2 on the clamping bracket 3, recess 4 on the thrust bracket 5. The brackets are installed on axes 6 and 7 fixed to the base 8, with the possibility of rotation on these axes. The bottom 9 of the clamping bracket 3 is made to interact with the horizontal surface of the base 8, and the clamping bracket 3 itself is equipped with a spring 10 placed on its axis 6, designed to move this bracket towards the thrust bracket 5. The thrust bracket is made to interact with the folding thrust lever 11, which holds it is stationary relative to the base 8 in the “IKZ on the wire” position. The stop 12 has a blind hole 13. On the side surface of the stop bracket 5 there is a protrusion 14 that interacts with a spacer rod 15, the second end of which is located in the blind hole 13 of the stop 12, the clamping bracket 3.

The insulating rod 16 at the upper end contains a square cup 17, one of the sides 18 of which is made longer than the other sides. The IKZ housing 19 should be, for example, square in cross-section. The spacer rod 15 has a groove 20 on its surface, in which a strong thread 21 is placed, tied to the spacer rod, and with the other end to the insulating rod 16.

The device works as follows.

Installation of IKZ on a power line wire. The initial position of the device is shown in Figure 1. The IKZ is installed in the square cup 17 of the insulating rod 16 so that the protruding part of the folding thrust lever 11 is located opposite the long side 18. The clamping bracket 3 rotates on the axis 6 counterclockwise. The first semicircular end of the spacer rod 15 is inserted into the blind hole 13 of the stop 12, and the second flat end rests against the protrusion 14 of the stop bracket 5. By lifting the insulating rod 16, the installer inserts the power line wire 1 between the clamping bracket 3 and the stop bracket 5. With further lifting, the power wire 1 presses on the spacer rod 15. Since the left semicircular end of the spacer rod is located in the blind hole 13, it cannot lower. The right flat end of the spacer rod 15 will begin to move downward from the protrusion 14 of the thrust bracket 5. As soon as the spacer rod 15 ceases to interact with the protrusion 14, the spring 10 will rotate the clamping bracket 3 clockwise and the spacer rod 15 will be thrown back and hang on a strong thread 21 tied to insulating rod 16. The clamping bracket 3 securely clamps the power line wire 1, which is placed in the recesses 2 and 4. Now you can lower the insulating rod 16 (see figure 2).

Removing the ICP from the power line wire.

Raise the insulating rod 16. Moreover, the long side 18 should be located under the folding thrust lever 11. With further lifting of the insulating rod 16, the edge of the long side 18 of the glass 17 presses from below on the thrust lever 11, which rotates counterclockwise and releases the thrust bracket 5. Now you should rotate barbell 16 at a slight angle to the left and right. With the applied rotational force, the clamping bracket 3 and the thrust bracket 5 will separate and the IKZ is freely removed from the power line wire 1 (see figure 3).

Thus, the above information indicates that the following set of conditions are met when using the claimed invention:

- a means embodying the claimed invention during its implementation, intended for use in the electric power industry for installing a short circuit indicator (SCI) on the wire of an overhead power line (OHPL) and for removing it from the wire (OHPL).

- for the claimed device in the form as it is characterized in the independent claim of the stated claims, the possibility of its implementation has been confirmed using the means and methods described in the application or known before the priority date;

- the means embodying the claimed invention during its implementation is capable of achieving the technical result envisioned by the applicant.

- the advantage of the invention is that the arsenal of technical means is expanding, namely, a new technical solution is proposed, an alternative to the known solution.

Therefore, the claimed invention meets the condition of “industrial applicability”.

Claims (2)

1. A device for attaching a short circuit indicator (SCI) to an overhead power line wire, located in the upper part of the IKZ housing, containing two brackets equipped with recesses: a clamping one and a thrust one, designed to encircle and hold the overhead power line wire between them, the brackets are installed on the axes , fixed on the base, having the ability to rotate on these axes, and the clamping bracket, having a stop, is equipped with a spring located on its axis, designed to move this bracket towards the thrust bracket, which is made to interact with a folding thrust lever, holding it in a stationary state relative to base in the “IKZ on wire” position, and a spacer rod that holds the clamps in the open state, characterized in that the bottom of the clamping bracket is made to interact with the horizontal surface of the base, the clamping bracket stop is equipped with a blind hole, and a protrusion is inserted on the side surface of the clamping bracket, interacting with a spacer rod, the second end of which is located in the blind hole of the clamping bracket stop. 2. A device for attaching a short circuit indicator (SCI) to an overhead power line wire according to claim 1, characterized in that the body is made, for example, square.

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