JP2017199624A - Insulation member around bushing of transformer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to readily mount an insulation member to a bushing and an electric wire whether a direction in which the bushing of a transformer extends and a direction of the electric wire that extends from the bushing are in any direction.SOLUTION: An insulation member around a bushing of a transformer of the present invention is an insulation cover for bushing covering the bushing of the transformer, and includes an opening for inserting a bushing for inserting the bushing, an insulation cover for bushing having an opening for inserting an electric wire for inserting the electric wire extending from the bushing formed by at least one continuing the opening for bushing insertion, and an insulation cover for electric wire for covering the electric wire, and to the insulation cover for the bushing the insulation cover for the electric wire is connected direction changeably.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a bushing of a transformer mounted on a utility pole and an insulating member around the bushing of the transformer for insulating and protecting an electric wire extending from the bushing.

  Conventionally, for example, when a transformer mounted on a power pole is replaced, a plurality of insulating sheets are connected to a wire connecting the bushing of the transformer and a high-voltage cutout so that an operator does not get an electric shock. Is covered with an insulating sheet. At this time, the insulating sheet is remotely attached using an indirect hot wire operation rod (so-called Yatsuko).

  When covering the bushing with an insulating sheet, it is necessary to apply the insulating sheet so as to follow the shape of the bushing and to follow the electric wire extending from the bushing toward the high-voltage cutout. However, it is extremely difficult to remotely apply a plurality of sheets to a bushing or an electric wire using a Yatco.

  In order to solve this problem, an insulating sheet covering the bushing and the electric wire is provided. The insulating sheet includes a bushing grip for detachably holding the bushing of the transformer, a sheet having one end fixed to a sheet mounting portion of the bushing grip, and a spine that supports the sheet in a deformable manner according to the shape of the electric wire. A member and an electric wire holding clip for fixing the sheet to the electric wire are provided (see Patent Document 1).

JP 2014-203721 A

  By the way, the direction in which the bushing of the transformer extends depends on the specification of the transformer. In addition, the direction of the electric wire connecting the bushing of the transformer and the high-voltage cutout differs from the direction in which the bushing extends and the direction in which the high-voltage cutout extends from the bushing.

  For example, when the electric wire drawn out from the bushing is bent into a substantially L shape toward the high-voltage cutout, according to the insulating sheet of the patent publication, the bushing grip and the sheet are integrated, One end of the sheet is fixed to the bushing, and the other end of the sheet is fixed to the high-pressure cutout. As a result, there is a problem that the extra length of the sheet concentrates on the bent part of the electric wire, and it becomes difficult to cover the bent part of the electric wire with the sheet.

  Accordingly, in view of the above problems, the present invention provides a transformer in which an insulating member can be easily attached to the bushing and the electric wire regardless of the direction in which the bushing of the transformer extends and the direction of the electric wire extending from the bushing. It is an object to provide an insulating member around a bushing of a vessel.

  The insulating member around the bushing of the transformer of the switch according to the present invention is a bushing insulating cover for covering the bushing of the transformer, and the bushing insertion opening for inserting the bushing, and the bushing insertion opening A bushing insulating cover having a wire insertion opening for inserting an electric wire extending from the bushing, which is continuously formed, and an electric wire insulation cover for covering the electric wire, the bushing insulating cover The insulating cover for electric wires is connected so that the direction can be changed.

  According to this configuration, the bushing of the transformer is inserted into the bushing insertion opening of the bushing insulating cover, and the electric wire extending from the bushing is inserted into the electric wire insertion opening of the bushing insulating cover. On the other hand, the electric wire extending from the bushing is covered with an insulating cover for electric wires. After that, by connecting the insulating cover for electric wire to the insulating cover for bushing while changing the direction, the bushing and the electric wire can be used regardless of the direction in which the transformer bushing extends and the direction of the electric wire extending from the bushing. Thus, the insulating member can be easily attached to the operator, and the safety of the operator can be ensured.

  As an aspect of the insulating member around the bushing of the transformer according to the present invention, the insulating cover for the bushing is connected to an upper plate part covering the upper side of the bushing and a lateral one side end part of the upper plate part. A lateral side plate portion covering one lateral side of the upper side plate portion, and a rear side plate portion connected to the upper side plate portion and the lateral side plate portion so as to face each other at a position spaced apart from the bushing by a predetermined distance. The bushing insertion opening is defined by the transformer-side end and the transformer-side end of the lateral plate portion, and the wire insertion opening is defined by the lower end of the lateral plate portion and the lower end of the rear plate portion. A second electric wire insertion between a lateral one side end of the upper side plate portion where the lateral side plate portion is not coupled and a lateral one side end of the rear side plate portion where the lateral side plate portion is not coupled. It is preferred that a through opening is defined.

  According to such a configuration, the insulating cover for the bushing includes the upper plate portion covering the upper side of the bushing, the horizontal plate portion covering the lateral side of the bushing, and the rear plate portion opposed to the bushing at a predetermined distance. The bushing can be accurately covered with a bushing insulating cover.

  As an aspect of the insulating member around the bushing of the transformer according to the present invention, the insulating cover for the bushing is connected to the upper side plate portion covering the upper side of the bushing and both lateral end portions of the upper side plate portion. A pair of lateral side plate portions that cover both lateral sides of the upper side plate, and a rear side plate portion that is oppositely disposed at a position spaced apart from the bushing by a predetermined distance and that connects the upper side plate portion and the lateral side plate portions. The bushing insertion opening is defined by the transformer-side end of the section and the transformer-side end of the both side plate portions, and the electric wire is defined by the lower end of the both side plate portions and the lower end of the rear plate portion. An insertion opening is preferably defined.

  According to such a configuration, after the insulating cover for the bushing is disposed so as to face the upper plate portion covering the upper side of the bushing, the pair of horizontal side plate portions covering both lateral sides of the bushing, and at a position spaced apart from the bushing by a predetermined distance. By providing the side plate portion, the periphery of the bushing can be accurately covered with the insulating cover for bushing.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, it is preferable that the lateral side plate portion is provided with a magnet for magnetically attaching to the outer surface of the transformer.

  According to such a configuration, the bushing insulating cover can be easily attached to the outer surface of the transformer by the magnet provided on the side plate portion. Further, since the magnetism is magnetically attached, the bushing insulating cover can be easily rotated in the circumferential direction with respect to the transformer, and the direction of the bushing insulating cover relative to the transformer can be easily changed.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, it is preferable that a magnet for magnetic attachment to the outer surface of the transformer is provided on the pair of lateral side plate portions.

  According to such a configuration, the bushing insulating cover can be easily attached to the outer surface of the transformer by the magnets provided on the pair of lateral side plate portions. Further, since the magnetism is magnetically attached, the bushing insulating cover can be easily rotated in the circumferential direction with respect to the transformer, and the direction of the bushing insulating cover relative to the transformer can be easily changed.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, the electric wire insulating cover is formed in a long sheet extending in one direction, and connected to the bushing insulating cover; It is preferable to have a covering portion that extends from the connecting portion and covers the electric wire.

  According to this configuration, the electric wire extending from the bushing and the bushing is reliably covered with the electric wire insulating cover having the connecting portion connected to the bushing insulating cover and the covering portion extending from the connecting portion and covering the electric wire. Can do.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, at the boundary portion between the connecting portion and the covering portion, the covering portion is bent at a substantially central portion in the width direction substantially orthogonal to the longitudinal direction. It is preferable that a pair of cuts are provided, and the pair of cuts are cut from both ends in the width direction of the covering portion to the vicinity of the center portion.

  According to this configuration, since the boundary portion between the connecting portion and the covering portion is provided with a pair of cuts, the electric wire extending from the bushing can be easily bent by bending the covering portion at the substantially central portion in the width direction substantially orthogonal to the longitudinal direction. Can be covered.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, it is preferable that a hook-and-loop fastener is provided along the longitudinal direction at each of both end portions in the width direction of the covering portion.

  According to such a configuration, since the surface fastener is provided along the longitudinal direction at both ends in the width direction of the covering portion, the covering portion is overlapped and locked by folding the covering portion. Can be held in a bent state.

  As another aspect of the insulating member around the bushing of the transformer according to the present invention, each of the rear plate portion of the bushing insulating cover and the connecting portion of the electric wire insulating cover is preferably provided with a surface fastener.

  According to such a configuration, since the surface fastener is provided on each of the rear plate portion of the bushing insulating cover and the connecting portion of the electric wire insulating cover, the rear plate portion of the insulating bushing cover, the connecting portion of the electric wire insulating cover, Is detachable, and the orientation of the wire insulation cover relative to the bushing insulation cover can be easily changed according to the direction in which the bushing extends and the direction of the wire extending from the bushing.

  As described above, according to the present invention, the insulating member can be easily attached to the bushing and the electric wire regardless of the direction in which the bushing of the transformer extends and the direction of the electric wire extending from the bushing. An excellent effect can be achieved.

FIGS. 1A to 1C are perspective views showing an insulating cover for bushing of an insulating member around a bushing of a transformer according to an embodiment of the present invention. Fig.2 (a) is a front view which shows the insulation cover for electric wires of the insulation member around the bushing of the transformer based on the embodiment, FIG.2 (b) is a rear view of Fig.2 (a). FIG. 3 is a view showing a usage mode of an insulating member around a bushing of the transformer according to the embodiment. FIGS. 4A to 4C are views showing a connection state between the insulating cover for bushing and the insulating cover for electric wire in the positional relationship of the high-voltage cutout with respect to the transformer. FIG. 5A is a view showing a modification of the insulating cover for bushing of the insulating member around the bushing of the transformer, and FIG. 5B is a view showing a state in which the insulating cover for bushing and the insulating cover for electric wire are connected. FIG.5 (c) is a figure which shows the connection state of the insulating cover for bushings, and the insulating cover for electric wires in the positional relationship of the high voltage | pressure cutout with respect to a transformer. FIG. 6 is a diagram showing a structure of a general utility pole in which a transformer and a high-voltage cutout are arranged.

  An insulating member around a bushing of a transformer according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a transformer having a bushing extending obliquely downward will be described as an example. Prior to the description of the present embodiment, the structure of a utility pole provided with the transformer will be described.

  For example, as shown in FIG. 6, the structure of the utility pole is installed under the utility pole P, the three-phase high-voltage lines C1 to C3 installed on the utility pole P, and the three-phase high-voltage lines C1 to C3. And a transformer T. A bushing B extending obliquely downward is provided on the primary side of the transformer T. An electric wire (high-voltage lead wire) R is connected to the bushing B via a pull-down line C and a high-voltage cutout K from the three-phase high-voltage lines C1 to C3. The electric wire R is drawn from the bushing B toward the high-voltage cutout K obliquely below.

  As shown in FIGS. 1 and 2, the insulating member 1 around the bushing of the transformer according to the present embodiment can be connected to the bushing insulating cover 2 that covers the bushing B of the transformer T, and the bushing insulating cover 2. The electric wire insulation cover 3 covering the electric wire R connecting the bushing B of the transformer T and the high voltage cutout K is provided. In FIG. 4, the side away from the transformer T (the side away from the page) is the rear side, the side approaching the transformer T (the side facing the page) is the front side, and when the transformer T is viewed, the left side is the left side. In the following, the right side is the right side when the transformer T is viewed.

  The insulating cover 2 for the bushing is connected to a rectangular upper plate portion 21A that covers the upper side of the bushing B and a horizontal side end portion (left end) of the upper plate portion 21A, and covers a horizontal one side (left side) of the bushing B. A rectangular side plate 21B and a rear end of the upper plate 21A and a rear end of the side plate 21B arranged opposite to each other at a position separated from the bushing B by a predetermined distance (a rear position on the side away from the transformer T). The fan-shaped rear side plate part 20 to be connected is provided. The bushing insulating cover 2 is formed by bending a single sheet cut into a predetermined shape. Specifically, the fan-shaped rear side plate portion 20, and the square upper side plate portion 21 </ b> A and the lateral side plate portion 21 </ b> B formed continuously from the rear side plate portion 20 are bent.

  The insulating cover for bushing 2 draws out a bushing insertion opening 22 for approaching the bushing B of the transformer T, and an electric wire R extending from the bushing B and formed at least one continuous with the bushing insertion opening 22. An opening 23 for inserting a wire.

  The bushing insertion opening 22 is an opening defined by a front end 21a serving as an end on the transformer T side of the upper plate 21A and a front end 21a serving as an end on the transformer T side of the lateral plate 21B. The wire insertion opening 23 is a first wire insertion opening 23A formed by a right end 20b which is a horizontal side end of the arcuate portion 20a of the rear plate portion 20 and a right end 21b of the upper plate portion 21A. The second plate insertion opening 23B formed by the lower end 20c serving as the lower end of the arc-shaped portion 20a of the rear plate portion 20 and the lower end 21b of the horizontal plate portion 21B is provided. Since the first electric wire insertion opening 23A and the second electric wire insertion opening 23B constituting the electric wire insertion opening 23 are formed in a continuous opening, as shown in FIG. The direction of the electric wire insulation cover 3 can be changed from the horizontal position to the vertical position.

  A hook-and-loop fastener 25 for connecting a connecting portion 31 of an electric wire insulating cover 3 to be described later is attached to the inner surface of the rear side plate portion 20.

  The front end 21a of the upper side plate portion 21A and the front side end 21a of the lateral side plate portion 21B have flange portions 21c and 21c bent outward by 90 degrees, and L-shapes attached so as to follow the flange portions 21c and 21c. Magnet 24.

  On each of the rear plate part 20, the upper plate part 21A, and the lateral plate part 21B, a handle 26 is attached that is gripped by an indirect hot wire operating rod (not shown) (not shown).

  The electric wire insulating cover 3 is a covering portion 30 that covers the electric wire R along the extending direction of the electric wire R, and is a long rectangular (substantially rectangular) covering portion 30 extending in one direction; The connecting portion 31 provided continuously on one short side of the covering portion 30 and the covering portion 30 formed in the boundary portion between the covering portion 30 and the connecting portion 31 extending in the longitudinal direction are substantially orthogonal to the longitudinal direction. And a pair of cuts 3a, 3a for folding at a substantially central portion in the width direction (short side direction). The pair of cuts 3 a and 3 a are cut from both ends in the width direction of the covering portion 30 to the vicinity of the center portion. Specifically, it is formed from both ends of the covering portion 30 toward the center line S in the longitudinal direction.

  The covering portion 30 is configured to be foldable along the center line S in the longitudinal direction, and has surface fasteners 32 and 32 attached along the longitudinal direction at both ends in the width direction. The space | interval of this pair of surface fasteners 32 and 32 has a magnitude | size which can coat | cover the electric wire R in the circumferential direction.

  The connecting portion 31 has an oval semicircular shape, and is formed by a semicircular curved portion 310 and a pair of straight portions 311 extending from both ends of the curved portion 310. A hook-and-loop fastener 33 is attached to the connecting portion 31 over substantially the entire area.

  At the center portion in the width direction of the outer surface (front surface) that is opposite to the covering surface (back surface) that covers the electric wire R in the covering portion 30, a handle 34 that can be gripped by an indirect hot wire operating rod is a center line in the longitudinal direction. A plurality are attached along S at a predetermined interval.

  In addition, a plurality of (in this case, three) gripping portions 35 having a rectangular shape that can be gripped by an indirect hot wire operation rod are provided at both ends in the width direction of the covering portion 30 along the length direction. A plurality are arranged so as to protrude outward in the width direction at intervals.

  Next, a usage aspect of the insulating member around the bushing of the transformer according to the present embodiment will be described.

  First, the operator is in a state where the back surface side of the connecting portion 31 of the electric wire insulating cover 3 is opposed to the bushing B of the transformer T, and the back surface side of the covering portion 30 is positioned on the electric wire R side. While holding the handle 34 of the wire insulation cover 3 with the indirect hot wire operation rod, the back surface of the connecting portion 31 of the wire insulation cover 3 is applied to the bushing B, and the back surface of the covering portion 30 of the transformer is along the wire R. Apply. At this time, the surface fastener 33 of the connecting portion 31 of the electric wire insulating cover 3 is disposed on the front side of the bushing B.

  Next, the operator bends the both sides in the width direction of the covering portion 30 inward so that the pair of hook-and-loop fasteners 32 and 32 can be locked through the pair of cuts 3a and 3a. The state in which the covering portion 30 is folded can be maintained by the locking action between the hook-and-loop fasteners 32 and 32, and the electric wire R is covered with the electric wire insulating cover 3.

  Next, the operator places the bushing insulating cover 2 in a state where the second wire insertion opening 23B faces downward, and grips the handle 26 of the bushing insulating cover 2 with the indirect hot wire operation rod. The bushing B of the transformer T is inserted into the bushing insertion opening 22 and the bushing insulation cover 2 is transformed so that the electric wire R covered with the electric wire insulation cover 3 is positioned in the second electric wire insertion opening 23B. The outer surface of the vessel T Specifically, the front end 21a of the upper plate 21A and the front end 21a of the lateral plate 21B are brought into contact with the arc surface of the transformer T. Accordingly, the bushing insulating cover 2 can be fixed to the transformer T by magnetizing the outer surface of the transformer T with the magnet 24 of the bushing insulating cover 2. At this time, the surface fastener 25 of the bushing insulating cover 2 is locked to the surface fastener 33 of the electric wire insulating cover 3 so that the bushing insulating cover 2 and the electric wire insulating cover 3 can be fixed. Further, when the position of the bushing insulating cover 2 with respect to the bushing B is desired to be changed in the circumferential direction, the bushing insulating cover 2 is magnetized by the magnet 24, and therefore the bushing insulating cover 2 is rotated in the circumferential direction. The orientation can be easily changed.

  As shown in FIG. 4 (c), by attaching the bushing insulating cover 2, the bushing B is moved in three directions with the upper plate portion 21A, the lateral plate portion 21B, and the rear plate portion 20 of the electric wire insulating cover 3. Can be covered. Further, the electric wire R extending from the bushing B can be covered by mounting the electric wire insulating cover 3.

  FIG. 4A shows a case where the high-voltage cutout K is disposed on the upper side of the transformer T. In this case, the wire insulation cover 3 is used for the wire insulation cover 2 with respect to the bushing insulation cover 2. The first electric wire insertion opening 23 </ b> A of the insulating cover 3 is inserted and fixed in a horizontal position. 4B, when the high voltage cutout K is disposed on the lower side of the transformer T, the electric wire insulating cover 3 is connected to the bushing insulating cover 2 with respect to the electric wire insulating cover 3. The second electric wire insertion opening 23B is inserted and fixed to a substantially vertical position. Further, as shown in FIGS. 4B and 4C, when the electric wire R is bent into a substantially L shape, the electric wire insulation cover 3 has a sheet shape, and therefore the direction in which the electric wire R bends. Can be bent to follow.

  That is, by fixing the connecting portion 31 of the electric wire insulating cover 3 to the rear side plate portion 20 of the bushing insulating cover 2, the bushing B and the electric wire R of the transformer T are covered with the insulating member 1. It is possible to ensure the safety against the electric shock of the person.

  Next, when removing the insulating member 1 from the transformer T, the operator first holds the bushing insulating cover 2 by gripping the handle 26 of the rear side plate portion 20 of the bushing insulating cover 2 with an indirect hot wire operating rod. Pull it away from the bushing B and remove it from the outer surface of the transformer T.

  Thereafter, one of the plurality of gripping portions 35 of the cylindrical covering portion 30 is gripped with an indirect hot wire operation rod so that the pair of surface fasteners 32, 32 of the cylindrical wire insulating cover 3 are separated from each other. Then, the both sides of the covering part 30 are pulled away from each other, and the tubular covering part 30 is unfolded and removed from the electric wire R.

  As described above, according to the insulating member around the bushing of the transformer according to the present embodiment, the direction in which the bushing B of the transformer T extends and the direction of the electric wire R extending from the bushing B are any direction. The insulating member 1 can be easily attached to the bushing B and the electric wire R.

  In addition, the insulating member around the bushing of the transformer according to the present invention can be variously changed without being limited to the above embodiment.

  For example, in the case of the embodiment, the bushing insulating cover 2 is formed by bending a single sheet cut into a predetermined shape, but at least two continuous surfaces of a synthetic resin box are opened. You may make it form. Specifically, the rear side plate portion may be a triangular or quadrangular insulating cover for bushing. Hereinafter, a bushing insulating cover having a rectangular rear plate portion and three plate portions formed continuously with the rear plate portion will be described.

  Further, for example, as shown in FIGS. 5A and 5B, an insulating cover 5 for bushing may be configured. This bushing insulating cover 5 is a rectangular (rectangular) upper plate part 51c that covers the upper side of the bushing B, and a rectangular shape that is connected to both lateral ends of the upper plate part 51c and covers both lateral sides of the bushing B. A rectangular shape (rectangular shape) that is disposed opposite to a pair of lateral plate portions 51b and 51d having a shape (square shape) and spaced apart from the bushing B by a predetermined distance and connects the upper plate portion 51c and the lateral plate portions 51b and 51d. ) A rear side plate portion 51e.

  A bushing insertion opening 50 is defined by a front end 51C which is an end on the transformer T side of the upper plate 51c and front ends 51D and 51D which are ends on the transformer T of both lateral plates 51b and 51d. An electric wire insertion opening 51 is defined by the lower ends 51B and 51D of the lateral side plate portions 51b and 51d and the lower end 51E of the rear side plate portion 51e. In FIG. 1 (c), two wire insertion openings 23A and 23B are shown. In FIG. 5 (a), one wire insertion opening 51 is shown, but three or more wire insertion openings are provided. Also good. In FIGS. 5 (a) and 5 (b), it is assumed that the handle gripped by the indirect live-line operating rod is omitted.

  At the front end 51D of the side plate 51b of one of the side plates 51b and 51d (on the right side of the bushing B) and the front end 51C of the upper plate 51c, flanges 52c and 52c bent outward by 90 degrees are provided. And an L-shaped magnet 53, which is a magnetized part, is attached. Further, a surface fastener 54 that is overlapped and locked with the surface fastener 33 of the connecting portion 31 (see FIG. 2) of the electric wire insulating cover 3 is attached to substantially the entire inner surface of the rear side plate portion 51e.

  The usage aspect of the insulating member of the bushing of the transformer of such a structure is demonstrated. First, the operator applies the connecting portion 31 of the electric wire insulating cover 3 shown in FIG. 2 to the bushing B (see FIG. 4C) of the transformer T, and the covering portion 30 to the electric wire R extending from the bushing B. As described above, the electric wire R is covered in a cylindrical shape along the direction in which the electric wire R extends with the electric wire insulating cover 3.

  Next, the operator inserts the bushing B of the transformer T in a state where the connecting portion 31 of the electric wire insulating cover 3 is applied to the bushing insertion opening 50 of the insulating cover 5 for bushing, and for inserting the electric wire. The bushing insulating cover 5 is brought into contact with the outer surface of the transformer T so that the electric wire R covered with the electric wire insulating cover 3 is positioned in the opening 51. Specifically, the front end 51C of the upper plate portion 51c and the front ends 51D and 51D of the lateral plate portions 51b and 51d are brought into contact with the arc surface of the transformer T. Accordingly, the bushing insulating cover 5 can be fixed to the transformer T by being magnetized on the outer surface of the transformer T by the magnet 53 of the bushing insulating cover 5. At this time, the hook-and-loop fastener 54 of the bushing insulating cover 5 is locked to the hook-and-loop fastener 33 of the electric wire insulating cover 3 so that the bushing insulating cover 5 and the electric wire insulating cover 3 can be fixed (see FIG. 5C). ).

  Thereby, there exists an effect similar to the said embodiment. That is, the insulating member can be easily attached to the bushing B and the electric wire R regardless of the direction in which the bushing B of the transformer T extends and the direction of the electric wire R extending from the bushing B.

  In the above embodiment, the electric wire R extends obliquely downward from the bushing B of the transformer T toward the high voltage cutout K. However, the L shape is formed from the bushing B of the transformer T toward the high voltage cutout K. For the electric wire R that is bent into two, the electric wire R is covered with a sheet-like insulating cover 3 for electric wires.

  DESCRIPTION OF SYMBOLS 1 ... Insulation member around a bushing of a transformer, 2, 5 ... Insulation cover for bushing, 20 ... Rear side plate part, 20b ... Right side end of rear side plate part, 21A ... Upper side plate part, 21a ... Front side end of upper side plate part, 21b ... right side end of upper side plate part, 21B ... side side plate part, 21a ... front side end of side side plate part, 22, 50 ... opening for bushing insertion, 23, 51 ... opening for electric wire insertion, 25, 32, 33 ... surface fastener DESCRIPTION OF SYMBOLS 3 ... Insulation cover for electric wires, 3a ... Cut | interruption, 30 ... Covering part, 31 ... Connection part, B ... Bushing, C ... Pull-down wire, K ... High voltage cutout, P ... Electric pole, R ... Electric wire (high voltage lead wire), S ... Center line, T ... Transformer

Claims (9)

  An insulating cover for bushing covering the bushing of the transformer, wherein the bushing insertion opening for inserting the bushing and at least one continuous wire formed in the bushing insertion opening are inserted into the bushing insertion opening. A bushing insulating cover having a wire insertion opening and an electric wire insulating cover for covering the electric wire, and the electric wire insulating cover is connected to the bushing insulating cover so that the direction of the electric wire can be changed. Insulation material around the bushing of the transformer.   The insulating cover for bushing includes an upper plate portion covering the upper side of the bushing, a lateral plate portion connected to one lateral end portion of the upper plate portion and covering one lateral side of the bushing, and a predetermined distance from the bushing. A rear plate that is disposed opposite to each other at a spaced position and connects the upper plate and the lateral plate, the transformer-side end of the upper plate and the transformer-side end of the lateral plate The bushing insertion opening is defined, the lower end of the lateral plate portion and the lower end of the rear plate portion define the wire insertion opening, and the side of the upper plate portion where the lateral plate portion is not connected 2. The second electric wire insertion opening is defined by the lateral one side end of the rear side and the lateral one side end of the rear side plate portion where the lateral side plate portion is not connected. Insulation material around the bushing of the transformer.   The insulating cover for bushing includes an upper plate portion covering the upper side of the bushing, a pair of lateral plate portions connected to both lateral end portions of the upper plate portion and covering both lateral sides of the bushing, and the bushing. A rear plate portion disposed opposite to each other at a predetermined distance to connect the upper plate portion and the lateral plate portions, the transformer-side end of the upper plate portion and the transformer of the lateral plate portions. 2. The bushing insertion opening is defined by an end on the vessel side, and the wire insertion opening is defined by a lower end of the lateral side plate portions and a lower end of the rear side plate portion. Insulation material around bushings of transformers.   The insulating member around the bushing of the transformer according to claim 2, wherein a magnet for magnetically attaching to the outer surface of the transformer is provided on the lateral plate portion.   The insulating member around the bushing of the transformer according to claim 3, wherein a magnet for magnetically attaching to the outer surface of the transformer is provided on the pair of lateral side plate portions.   The electric wire insulating cover is formed in a long sheet extending in one direction, and has a connecting portion connected to the bushing insulating cover, and a covering portion extending from the connecting portion and covering the electric wire. The insulating member around the bushing of the transformer according to any one of claims 1 to 5, wherein   A boundary portion between the connecting portion and the covering portion is provided with a pair of cuts for folding the covering portion at a substantially central portion in the width direction substantially orthogonal to the longitudinal direction, and the pair of cuts is a width of the covering portion. The insulating member around the bushing of the transformer according to claim 6, wherein the insulating member is cut from each of both ends in the direction to near the center.   The insulating member around the bushing of the transformer according to claim 6 or 7, wherein a hook-and-loop fastener is provided along each longitudinal end of the covering portion along the longitudinal direction.   The bushing of a transformer according to any one of claims 6 to 8, wherein a hook-and-loop fastener is provided on each of a rear plate portion of the insulating cover for bushing and a connecting portion of the insulating cover for electric wire. Insulation member around.