KR102307656B1 - Seperatable connector, rotation bushing, bypass line, automatic transfer switch, mounted stand, insulation cover for replacing transformer with uninterruptable power supply and method using the same - Google Patents

Abstract

The present invention relates to a separable connection terminal, a rotating bushing, a bypass wire, an automatic switchover switch, a mounting stand, and an insulating cover for uninterruptible transformer replacement, and a method for replacing the uninterruptible transformer using the same, that can quickly separate and reassemble an incoming cable in a process of replacing a ground transformer, and allow temporary power supply costs to be reduced and customer complaints to be reduced as uninterruptible construction is carried out using a low-voltage power from a nearby ground transformer. The separable connection terminal comprises: a connection member; a connection member protection cap; and a compression member.

Description

Separable connector for uninterruptible transformer replacement, rotating bushing, bypass wire, automatic transfer switch, mounting stand, insulation cover, and uninterruptible transformer replacement method using the same {SEPERATABLE CONNECTOR, ROTATION BUSHING, BYPASS LINE, AUTOMATIC TRANSFER SWITCH, MOUNTED STAND, INSULATION COVER FOR REPLACING TRANSFORMER WITH UNINTERRUPTABLE POWER SUPPLY AND METHOD USING THE SAME}

The present invention relates to an uninterruptible transformer replacement detachable connection terminal, a rotating bushing, a bypass wire, an automatic transfer switch, a mounting stand, an insulating cover, and a method for replacing an uninterruptible transformer using the same, and more particularly, an electricity supplier in a downtown area Separable connection terminal for uninterruptible transformer replacement, rotating bushing, bypass line, automatic transfer switch, mounting stand for repairing underground distribution facilities (low voltage cables, underground junction boxes, etc.) used to supply electricity underground to people without power outage , an insulating cover and a method for replacing an uninterruptible transformer using the same.

In general, pole transformers for distribution lines are installed on poles to transform electricity of extra-high voltage (ground voltage 13,200V, phase-to-phase voltage 22,900V) and supply it to electricity users through low-voltage distribution lines or lead-in lines.

At this time, the low voltage supply method using the pole transformer can be divided into a 1-phase 2-wire 220V supply method and a 3-phase 4-wire 380/220V supply method. To supply a 4-wire 380/220V voltage, three single-phase transformers are combined to form a transformer.

When replacing such a pole transformer due to aging or overload, the conventional replacement method is a method of working while inducing a power outage to the load side by diagonal work of the transformer to be replaced, or a method of working using a mobile transformer. .

In this bypass method using a mobile uninterruptible transformer, an extra-high voltage down-line is connected to the primary side of each phase of the extra-high voltage line, and the secondary-side low-voltage down-line is connected to the low voltage line, and then a voltage is applied to the uninterruptible transformer to apply a three-phase Configure an uninterruptible bypass circuit in the pole transformer.

However, when replacing such a transformer, the operation of directly connecting an electric wire to the extra-high voltage side may act as a factor that poses a risk to the safety of workers, and a moving vehicle equipped with a mobile transformer is separately required.

Korean Patent Publication No. 10-0415908

The present invention was created to improve the problems of the prior art as described above, and it is possible to quickly separate and reassemble the lead-in cable in the process of replacing the ground transformer, and to replace an uninterruptible transformer that can be constructed without interruption using a nearby ground transformer low voltage power source An object of the present invention is to provide a separable connection terminal, a rotating bushing, a bypass wire, an automatic transfer switch, a mounting stand, an insulating cover, and an uninterruptible transformer replacement method using the same.

In order to achieve the above object, the detachable connection terminal according to the first embodiment of the present invention coupled to the bushing terminal of the transformer has a transformer coupling groove formed by recessing one side to be coupled to the bushing terminal, and the main body a connecting member formed in a cylindrical shape; a hollow connecting member protection cap formed to surround the connecting member and having a perforated inner side; and a pressing member protruding from the side of the connecting member and formed in a flat plate shape, and provided with a bolt fastening hole formed by being perforated at one side.

In the compression member, a bolt may pass through the bolt fastening hole so that the connecting member is compressed and coupled to the bushing terminal.

A rotary bushing according to a second embodiment of the present invention that can be coupled to a detachable connection terminal includes: a bushing portion formed so that a lead-in line is inserted and coupled from the outside; a bypass coupling part connected to one side of the bushing part so that a bypass wire is inserted and coupled from the outside; and a transformer coupling part connected to the other side of the bushing part so as to be rotatably coupled to the separate type connection terminal.

The bushing unit comprises: a bushing body formed of a flat plate so that current can move; and a lead-in coupling hole formed by being perforated in a plurality on one side of the bushing body so that a lead-in wire is inserted and coupled from the outside.

a bypass coupling terminal formed to protrude from one side of the bushing so that the bypass coupling part can be coupled to the end of the lead-in line; and a bypass terminal cap formed to surround the outside of the bypass coupling terminal, and having a hollow inside of the bypass terminal cap.

The transformer coupling part is coupled to the end of the transformer coupling shaft and the transformer coupling shaft formed to protrude cylindrically from the other side of the bushing so as to be coupled to the coupling member, and is in contact with the coupling member so that the current can move in contact with the coupling member. A transformer coupling terminal formed in the same shape as the other side of the transformer coupling terminal, a hollow shape transformer coupling cap formed to surround the outside of the transformer coupling terminal and having a perforated inside, and one side is connected to the transformer coupling terminal, the other side is the transformer coupling It is connected to the cap and includes a rotating bushing spring that allows the transformer coupling cap to move forward and backward.

The transformer coupling cap may have a screw trough formed on the inner surface so as to be rotated and coupled to a screw line formed protruding from the outside of the connecting member protection cap.

The bypass terminal cap may be protruded from an outer surface to be engageable with the bypass line to form a screw line.

A bypass line according to a third embodiment of the present invention capable of being coupled to a rotating bushing includes: an insulating line portion formed linearly to allow current to move; a first bypass connector formed to protrude from one side of the insulating wire portion so as to be coupled to the rotating bushing; and a second bypass connector protruding from the other side of the insulating wire part.

The insulated wire portion is made of a conductor material capable of moving current and is formed in a linear manner; and an insulating coating formed to surround the outside of the conductor wire.

The first bypass connector may include a first bypass terminal extending from one end of the conductor wire; and a hollow-shaped first bypass terminal cap with a perforated inner side so as to surround the first bypass terminal.

The second bypass connector may include a second bypass terminal extending from the other end of the conductor wire; and a second bypass terminal cap having a hollow inner side so as to surround the second bypass terminal.

The first bypass terminal cap may protrude from the inside to be coupled to the rotating bushing to form a screw trough, the diameter of which is larger than the diameter of the first bypass terminal, and may be rotated and coupled to the rotating bushing.

An automatic transfer switch according to a fourth embodiment of the present invention, which can be coupled to a bypass line, includes: a transfer switch formed to open and close three-phase alternating current, respectively; a first switchgear connector protruding from one side of the switching switch; and a second switchgear connector protruding from the other side of the transfer switchgear.

The switch opening/closing unit may include: an opening/closing case having a space formed therein; an R-phase switch formed inside the switch case and configured to open and close an R-phase alternating current; an S-phase switch formed to be spaced apart from the R-phase switch and formed inside the switch case to open and close an S-phase alternating current; A first embodiment of the present invention that is spaced apart from the S-phase switch and is formed inside the switch case and is coupled to a bushing terminal of a transformer in order to achieve the above-described purpose as a T-phase open formed to open and close a T-phase alternating current The detachable connection terminal according to the present invention includes: a connection member having a transformer coupling groove formed by concave on one side so as to be coupled to the bushing terminal, and having a main body formed in a cylindrical shape; a hollow connecting member protection cap formed to surround the connecting member and having a perforated inner side; and a pressing member protruding from the side of the connecting member and formed in a flat plate shape, and provided with a bolt fastening hole formed by being perforated at one side.

In the compression member, a bolt may pass through the bolt fastening hole so that the connecting member is compressed and coupled to the bushing terminal.

A rotary bushing according to a second embodiment of the present invention that can be coupled to a detachable connection terminal includes: a bushing portion formed so that a lead-in line is inserted and coupled from the outside; a bypass coupling part connected to one side of the bushing part so that a bypass wire is inserted and coupled from the outside; and a transformer coupling part connected to the other side of the bushing part so as to be rotatably coupled to the separate type connection terminal.

The bushing unit comprises: a bushing body formed of a flat plate so that current can move; and a lead-in coupling hole formed by being perforated in a plurality on one side of the bushing body so that a lead-in wire is inserted and coupled from the outside.

a bypass coupling terminal formed to protrude from one side of the bushing so that the bypass coupling part can be coupled to the end of the lead-in line; and a bypass terminal cap formed to surround the outside of the bypass coupling terminal, and having a hollow inside of the bypass terminal cap.

The transformer coupling part is coupled to the end of the transformer coupling shaft and the transformer coupling shaft formed to protrude cylindrically from the other side of the bushing so as to be coupled to the coupling member, and is in contact with the coupling member so that the current can move in contact with the coupling member. A transformer coupling terminal formed in the same shape as the other side of the transformer coupling terminal, a hollow shape transformer coupling cap formed to surround the outside of the transformer coupling terminal and having a perforated inside, and one side is connected to the transformer coupling terminal, the other side is the transformer coupling It is connected to the cap and includes a rotating bushing spring that allows the transformer coupling cap to move forward and backward.

The transformer coupling cap may have a screw trough formed on the inner surface so as to be rotated and coupled to a screw line formed protruding from the outside of the connecting member protection cap.

The bypass terminal cap may be protruded from an outer surface to be engageable with the bypass line to form a screw line.

A bypass line according to a third embodiment of the present invention capable of being coupled to a rotating bushing includes: an insulating line portion formed linearly to allow current to move; a first bypass connector formed to protrude from one side of the insulating wire portion so as to be coupled to the rotating bushing; and a second bypass connector protruding from the other side of the insulating wire part.

The insulated wire portion is made of a conductor material capable of moving current and is formed in a linear manner; and an insulating coating formed to surround the outside of the conductor wire.

The first bypass connector may include a first bypass terminal extending from one end of the conductor wire; and a hollow-shaped first bypass terminal cap with a perforated inner side so as to surround the first bypass terminal.

The second bypass connector may include a second bypass terminal extending from the other end of the conductor wire; and a second bypass terminal cap having a hollow inner side so as to surround the second bypass terminal.

The first bypass terminal cap may protrude from the inside to be coupled to the rotating bushing to form a screw trough, the diameter of which is larger than the diameter of the first bypass terminal, and may be rotated and coupled to the rotating bushing.

An automatic transfer switch according to a fourth embodiment of the present invention, which can be coupled to a bypass line, includes: a transfer switch formed to open and close three-phase alternating current, respectively; a first switchgear connector protruding from one side of the switching switch; and a second switchgear connector protruding from the other side of the transfer switchgear.

The switch opening/closing unit may include: an opening/closing case having a space formed therein; an R-phase switch formed inside the switch case and configured to open and close an R-phase alternating current; an S-phase switch formed to be spaced apart from the R-phase switch and formed inside the switch case to open and close an S-phase alternating current; a T-phase switch formed to be spaced apart from the S-phase switch and formed inside the switch case to open and close the T-phase AC current; an N-phase switch formed to be spaced apart from the T-phase switch and formed inside the switch case to open and close an N-phase alternating current; and an operation switch connected to each of the R-phase switchgear to the N-phase switchgear to select ON/OFF of the R-phase switchgear to the N-phase switchgear.

The operation switch may include an operation button for controlling the R-phase switchgear to the N-phase switchgear to perform an opening/closing operation; and a stop button for controlling the R-phase switchgear to stop the opening/closing operation of the N-phase switchgear.

The first switchgear connector includes a first switchgear terminal part provided on one side of the transfer switchgear and formed so that an alternating current can move; and a first switchgear terminal cap having a hollow inner side so as to surround the first switchgear terminal part.

The second switchgear connector includes a second switchgear terminal part provided on the other side of the transfer switchgear and formed so that an alternating current can move; and a second switchgear terminal cap having a hollow shape inside which the second switchgear terminal part is perforated.

The first switchgear connector may be respectively connected to one side of the R-phase switchgear to the N-phase switchgear, and the second switchgear connector may be respectively connected to the other side of the R-phase switchgear to the N-phase switchgear and connected to one side, respectively. .

Mounting stand according to a fifth embodiment of the present invention so that the rotating bushing is coupled to be mounted, a support portion installed on the ground so that the rotating bushing is spaced apart from the ground by a predetermined height; and a rotating bushing fixing part formed so as to be able to fix the rotating bushing to the upper end of the support part.

The support portion includes a first support plate installed on the ground, a second support plate spaced apart from the first support plate and installed on the ground, a first pillar extending in a vertical direction from an upper surface of the first support plate, and an upper surface of the second support plate A second pillar extending in the vertical direction from, a support extending in the vertical direction from the top of the first pillar and formed to pass through the rotating bushing fixing part, the support protruding from both end surfaces of the support so that the support is rotatable, the first and a support rotation shaft coupled to the pillar and the second pillar, respectively.

The rotating bushing fixing part has a center perforated so as to be rotatable along the circumference of the support, a hollow is formed, and a terminal rotating member through which the support passes; a rotating bushing fixing terminal protruding from the outer surface of the terminal rotating member and formed so that the rotating bushing can be coupled; and a fixing cap having a hollow shape inside which is perforated so as to surround the outside of the fixing terminal of the rotation bushing.

The terminal rotating member is rotatably rotatable along the outer periphery of the support, the center of which is perforated to form a hollow, a first terminal rotating member through which the support passes along the hollow, and a first terminal rotating member through which the support is spaced apart from the first terminal rotating member. The center is perforated so as to be rotatable along the outer periphery to form a hollow, and the second terminal rotatable through which the support passes along the hollow, and the center so as to be rotatable along the outer periphery of the support at a position spaced apart from the second terminal rotatable The hollow is formed by the perforation, and the center is perforated so as to be rotatable along the outer periphery of the support at a position spaced apart from the third terminal rotary table through which the support passes along the hollow and the third terminal rotary table to form a hollow, The support includes a fourth terminal rotator through the hollow.

The rotary bushing fixing terminal includes: a first bushing fixing terminal provided on the outer surface of the first terminal rotation table so that the R-phase alternating current can move; a second bushing fixing terminal provided on the outer surface of the second terminal rotating table so that the S-phase alternating current is movable; a third bushing fixing terminal provided on the outer surface of the third terminal rotating table so that the T-phase AC current is movable; and a fourth bushing fixing terminal provided on the outer surface of the fourth terminal rotating table so that the N-phase alternating current is movable.

The rotating bushing fixing cap has a diameter larger than the diameter of the first bushing fixing terminal so as to surround the outside of the first bushing fixing terminal, and a first bushing fixing cap protruding from the outside to form a screw trough; a second bushing fixing cap having a diameter larger than the diameter of the second bushing fixing terminal so as to surround the outside of the second bushing fixing terminal, and protruding from the outside to form a screw trough; a third bushing fixing cap having a diameter larger than the diameter of the third bushing fixing terminal to surround the outside of the third bushing fixing terminal and protruding outside to form a screw trough; and a fourth bushing fixing cap having a diameter larger than the diameter of the fourth bushing fixing terminal so as to surround the outside of the fourth bushing fixing terminal, and protruding from the outside to form a screw trough.

The insulating cover according to the sixth embodiment of the present invention is coupled to the rotary bushing to be insulated, and the cover body is formed in a rectangular parallelepiped shape with the lower surface open and the front and rear surfaces respectively perforated in a circle, and from the front of the cover body to the front. and a cover protection cap protruding in a circle and protruding circularly from the rear surface of the cover body to allow the rotation bushing to pass therethrough.

The cover body is formed in a rectangular parallelepiped shape with the lower surface open and the front and rear surfaces are respectively perforated in a circular shape, and the cover body protrudes forward in a cylindrical shape, and protrudes in a circle from the rear surface of the cover body to the rear of the rotating bushing. It includes a cover protection cap formed to pass through.

The cover body has a lower surface and a right wall surface open, and a first body in the shape of a cuboid having a semicircular groove formed by indenting from the right ends of the front and rear surfaces to the left, the lower surface and the left wall surface being opened, and the left ends of the front and rear surfaces A second body in the shape of a rectangular parallelepiped having a semicircular groove formed by concave in the right side, a fixing device provided at the lower front end of the second body and protruding forward to be inserted into the first body so as to be engageable, and the rotation The first body and the second body are spread apart and are coupled to the upper surface of the first body so as to be inserted into the rotating bushing, and the other end of the connecting device is coupled to the upper surface of the second body.

The uninterruptible transformer replacement method according to a seventh embodiment of the present invention includes a first connection terminal coupling step of coupling a first detachable connection terminal to a first bushing terminal of a target transformer; a first rotary bushing coupling step of coupling a first rotary bushing to the first detachable connection terminal; a first lead-in coupling step of coupling a first lead-in to the first rotating bushing; a first bypass line coupling step of coupling a first bypass line to the first rotating bushing; a switchgear coupling step of coupling an automatic transfer switch to the first bypass line; a second bypass line coupling step of coupling a second bypass line to the automatic transfer switch; a second rotary bushing coupling step of coupling a second rotary bushing to the second bypass line; a second lead-in coupling step of coupling a second lead-in to the second rotary bushing; a pre-transformer coupling step of coupling a second detachable connection terminal to the second bushing terminal of the pre-transformer; a second rotating bushing coupling step of rotating the second rotating bushing to be coupled to the second detachable connection terminal; It may include; a bushing terminal separation step of separating the first rotary bushing from the first bushing terminal and a bushing terminal mounting step of coupling the bushing terminal to a mounting stand.

As described above, according to the uninterruptible transformer replacement method according to the present invention, a detachable connection terminal for replacement of an uninterruptible transformer, a rotating bushing, a bypass wire, an automatic transfer switch, a mounting stand, an insulation cover, and an uninterruptible transformer replacement method using the same, by improving the low voltage terminal of the ground transformer It shortens the replacement time of the ground transformer and enables uninterrupted construction by receiving power from a nearby ground transformer when replacing the ground transformer, thereby reducing temporary power supply costs and reducing customer complaints.

1 is a perspective view showing a conventional transformer in which a bushing terminal and a bushing are combined.
2 is a cross-sectional view showing a state in which the rotary bushing according to the second embodiment of the present invention is coupled to the detachable connection terminal according to the first embodiment of the present invention.
3 is a cross-sectional view illustrating a state in which the rotary bushing according to the second embodiment of the present invention is separated from the detachable connection terminal according to the first embodiment of the present invention.
4 is a cross-sectional view illustrating a bypass line according to a third embodiment of the present invention.
5 is a cross-sectional view showing an automatic transfer switch according to a fourth embodiment of the present invention.
6 is a cross-sectional view showing a mounting stand according to a fifth embodiment of the present invention.
7 is a perspective view illustrating an insulating cover according to a sixth embodiment of the present invention.
8 is a front view of an insulating cover according to a sixth embodiment of the present invention as viewed from the front.
9 is a front view of the insulating cover in a state in which it is opened so as to be inserted into the rotating bushing from the front.
10 is a cross-sectional view illustrating a state in which a separate connection terminal, a rotary bushing, a bypass line, and an automatic transfer switch are coupled to a replacement target transformer and a spare transformer according to the uninterruptible transformer replacement method according to the seventh embodiment of the present invention.
11 is a cross-sectional view showing a state in which the bushing terminal separation step is performed in the uninterruptible transformer replacement method according to the seventh embodiment of the present invention.
12 is a cross-sectional view showing a state in which the bushing terminal mounting step is performed in the uninterruptible transformer replacement method according to the seventh embodiment of the present invention.

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

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and will be described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for clearer description.

1 and 2, the separation type connection terminal 20 according to the first embodiment of the present invention coupled to the bushing terminal 11 of the transformer 10 is one side so as to be coupled to the bushing terminal 11 a connecting member 21 having a transformer coupling groove 23 formed by concaving and having a main body formed in a cylindrical shape; It is formed to surround the connecting member 21 and protrudes from the side of the connecting member protective cap 22 and the connecting member 21 of a hollow shape with a perforated inside, and is formed in a flat plate shape, and is perforated from one side. and a compression member 24 provided with the formed bolt fastening hole 25 .

In the compression member 24 , a bolt may pass through the bolt fastening hole 25 so that the connection member 21 is compressed and coupled to the bushing terminal 11 .

In detail, the connecting member is a transformer coupling groove ( 23) is provided.

In addition, the connecting member 21 may be formed in a cylindrical or polygonal prism to surround the bushing terminal 11 , and may be configured to correspond to the bushing terminal 11 .

In addition, a bolt insertion hole through which the bolt is rotated and inserted through the side surface of the connecting member 21 may be formed.

The bolt is protruded from the side of the connecting member 21 to form a flat plate shape, and is drilled from one side to form a bolt fastening hole 25 so that the connecting member 21 is compressed and coupled to the bushing terminal 11. Penetrates the bolt fastening hole (25).

In addition, the rotary bushing 100 according to the second embodiment of the present invention, which can be coupled to the detachable connection terminal 20, is a bushing part 110 formed so that the lead-in line 1 is inserted and coupled from the outside, and a bypass line from the outside. a bypass coupling part 120 formed by being connected to one side of the bushing part 110 so that the 200 is inserted and coupled thereto; and a transformer coupling part 130 formed by being connected to the other side of the bushing part 110 so as to be rotatably coupled to the separate type connection terminal 20 .

In detail, the bushing unit 110 includes a bushing body 111 formed of a flat plate so that current can move and a plurality of on one side of the bushing body 111 so that the lead-in line 1 is inserted and coupled from the outside. It may include a lead-in coupling hole 112 formed by being perforated.

The material of the bushing body 111 may be formed of a conductive material including copper, silver, or stainless steel to allow current to move.

The shape of the bushing body 111 may be a circular or polygonal flat plate, for example, may be limited to a rectangular flat plate.

The lead-in coupling hole 112 is formed so that it can be coupled by a nut after the lead-in terminal 2 formed at the end of the lead-in wire 1 passes through a plurality of holes perforated on one side of the bushing body 111 .

The bypass coupling part 130 is a bypass coupling terminal 132 formed to protrude from one side of the bushing part 110 so as to be coupled to the end of the lead-in line 1 , and an outer side of the bypass coupling terminal 132 . It is formed to surround and includes a bypass terminal cap 133 of a hollow shape with a perforated inside.

The bypass coupling terminal 132 may be formed of a metal of a conductive material protruding from one side of the bushing part 110 and having a circular or polygonal cross-section, and in an embodiment, it is disclosed in a cylindrical shape, such as copper, silver or stainless steel. It may be formed by including a material.

The bypass terminal cap 122 may be formed in a cylindrical shape including a hollow perforated so as to surround the outside of the bypass coupling terminal 121 and have an inside diameter corresponding to the diameter of the bypass coupling terminal 121 . can

The bypass terminal cap 122 is formed so that the outside protrudes to form a screw line, so that the lead line and the like are coupled thereto.

The transformer coupling part 130 is a transformer coupling shaft 131 formed to protrude cylindrically from the other side of the bushing part 110 so as to be coupled to the connection member 21 . Transformer coupling terminal 132 coupled to the distal end of the transformer coupling shaft 131 and having a cross-section formed in the same shape as the other side of the coupling member 21 so as to be in contact with the coupling member 21 to allow current to move. , a transformer coupling cap 133 of a hollow shape formed to surround the outside of the transformer coupling terminal 132 and having a perforated inside, and one side is connected to the transformer coupling terminal 132, and the other side is the transformer coupling cap 133 ) and a rotating bushing spring 134 connected to the transformer coupling cap 133 to move forward and backward.

The transformer coupling terminal 132 has a diameter equal to the diameter of the connection member 21 and is formed in a circular or polygonal tubular shape to correspond to the connection member 21 and can be inserted into the connection member protection cap 22 . have.

One side of the transformer coupling cap 133 is opened to surround the outside of the transformer coupling terminal 132 , and the transformer coupling shaft 131 may be formed in a perforated cylindrical shape from the other side thereof.

The transformer coupling cap 133 may have a diameter larger than the diameter of the connection member protection cap 22 so as to be rotated and coupled with the connection member protection cap 22 .

The rotating bushing spring 134 has one side connected to the transformer coupling terminal 132 and the other side connected to the transformer coupling cap 133 to provide a restoring force so that the transformer coupling cap 133 moves forward and backward.

After the rotation bushing spring 134 is compressed in the process in which the transformer coupling terminal 132 is coupled to the connection member 21 , the transformer coupling terminal 132 is separated from the connection member 21 , the restoring force is provided. To provide, the transformer coupling cap 133 is formed to be spaced apart from the transformer coupling terminal 132 within a predetermined distance.

The transformer coupling cap 183 is formed to maintain a constant distance from the transformer coupling terminal 132 by the rotating bushing spring 134 to prevent wear and noise due to contact.

Referring to FIG. 3 , the transformer coupling cap 133 has a screw trough formed on the inner surface so as to be rotated and coupled to the screw formed protruding from the outside of the connection member protection cap 22, so that the connection member protection cap ( 22 ), so that the transformer coupling terminal 132 may be in contact with the connecting member 21 .

Referring to FIG. 4 , the bypass line 200 for replacing the uninterruptible transformer according to the second embodiment of the present invention, which can be coupled to the rotating bushing 100 , is an insulated line portion 210 formed linearly to allow current to move, the rotation A first bypass connector 220 formed to protrude from one side of the insulating wire part 210 so as to be coupled to the bushing 100 and a second bypass connector 230 formed to protrude from the other side of the insulating wire part 210. do.

In more detail, the insulating wire part 210 may include a conductor wire 211 formed of a conductive material in which current is movable, and an insulating coating 212 formed to surround the outside of the conductive wire 211 .

The conductor wire 211 may be formed of copper, silver, or stainless material to allow current to move, and includes R-phase conductors, S-phase conductors, T-phase conductors, and N-phase conductors corresponding to three-phase alternating current, respectively. It may be formed or may be formed of a single conductor to transmit single-phase alternating current or direct current.

The insulating coating 212 is formed in multiple layers including a material such as polyethylene, cross-linked polyethylene, and polypropylene to surround the outside of the conductor wire 211 to prevent an electric shock to the operator.

The first bypass connector 220 has a first bypass terminal 221 extending from one end of the conductor wire 211 and has a hollow inside shape to surround the first bypass terminal 221 . may include a first bypass terminal cap 222 of

The first bypass terminal 221 may be formed in a cylindrical or polygonal shape extending from one end of the conductive wire 211 and having a diameter greater than that of the conductive wire 211 . .

The first bypass terminal 221 corresponds to a three-phase alternating current, a first R-phase bypass terminal, a first S-phase bypass terminal, and a first T-phase bypass terminal. It may be configured to include a first N-phase bypass terminal,

One side of the first bypass terminal cap 222 may be opened to surround the outside of the first bypass terminal 221 , and the first bypass terminal cap 222 may be formed in a cylindrical shape perforated to allow the conductor wire to pass therethrough from the other side.

The second bypass connector 230 includes a second bypass terminal 231 extending from the other end of the conductor line 211 and a second bypass formed to surround the second bypass terminal 231 . A terminal cap 232 may be included.

The second bypass terminal 231 corresponds to a three-phase alternating current, a second R-phase bypass terminal, a second S-phase bypass terminal, and a second T-phase bypass terminal. It may be configured to include a second N-phase bypass terminal,

One side of the second bypass terminal cap 232 may be opened to surround the outside of the second bypass terminal 231 , and the second bypass terminal cap 232 may be formed in a cylindrical shape perforated to allow the conductor wire to pass therethrough from the other side.

The first bypass terminal cap 232 is protruded from the inside so as to be coupled to the rotary bushing 100 to form a screw trough, the diameter of which is larger than the diameter of the first bypass terminal 221 , so that the rotary bushing is formed. It may be rotated and coupled to ( 100 ).

5, the automatic transfer switch 300 for replacing the uninterruptible transformer according to the third embodiment of the present invention, which can be coupled to the bypass line 200, is a transfer switch 310 formed to open and close three-phase alternating current, respectively. , a first switch connector 320 protruded from one side of the switch-over switch 310 and a second switch connector 330 protruded from the other side of the switch-over switch 310 .

The transfer switch 310 includes a switch case 311 having a space formed therein, an R-phase switch 312 formed inside the switch case 311, and configured to open and close an R-phase alternating current, and the R-phase switch The S-phase switch 313 formed inside the switch case 311 and spaced apart from the S-phase AC current to open and close the S-phase AC current, and the S-phase switch 313 spaced apart from the switch case 311 A T-phase switch 314 formed inside and formed to open and close a T-phase AC current, an N-phase switch 315 spaced apart from the T-phase switch and formed inside the switch case, and formed to open and close an N-phase AC current ) and an operation switch 316 connected to the R-phase switch 312 to the N-phase switch 315 to select ON/OFF of the R-phase switch 312 to the N-phase switch 315, respectively. .

The switch case 311 is formed in a rectangular parallelepiped column shape so that a space is formed therein, and is formed so that the operation switch 316 is perforated to protrude to the front.

The operation switch 316 includes an operation button 316a for controlling the R-phase switch 312 to the N-phase switch 315 to automatically perform an opening/closing operation, the R-phase switch 312 to the N-phase switch (315) may include a stop button (316b) for controlling to stop the automatically performed opening and closing operation.

The first switchgear connector 320 is provided on one side of the switching switch 310 and has a first switchgear terminal 321 formed to allow an alternating current to move, and the inside is perforated to surround the first switchgear terminal 321. It may include a first open/close terminal cap 322 having a hollow shape.

The first switchgear terminal part 321 is a first R-phase switching terminal 321a to which the R-phase AC current is moved, and a first S-phase switching terminal 321b to which the S-phase AC current is moved. It includes a first T-phase switching terminal 321c to which the T-phase AC current is moved, and a first N-phase switching terminal 321d to which the N-phase AC current is moved.

The second switchgear connector 330 is provided on the other side of the switchgear switch 310 and has a second switchgear terminal part 331 formed to allow an alternating current to move, and a hollow shape in which the second switchgear terminal part 331 is perforated inside. of the second switchgear terminal cap 332 may be included.

The second switchgear terminal part 331 is a second R-phase switching terminal 331a to which the R-phase AC current is moved, and a second S-phase switching terminal 331b to which the S-phase AC current is moved. It includes a second T-phase switching terminal 331c to which the T-phase AC current is moved, and a second N-phase switching terminal 331d to which the N-phase AC current is moved.

The first switchgear connector 320 is connected to one side of the R-phase switchgear 312 to the N-phase switchgear 315, respectively, and the second switchgear connector 330 is the R-phase switchgear 312 to the N-phase switchgear. It may be connected to the other side of the phase switch 315, respectively.

The first R-phase opening and closing terminal 321a to the first N-phase opening and closing terminal 321d, and the second R-phase opening and closing terminal 331a to the second N-phase opening and closing terminal 331d are formed on both sides of the transfer switch 310 It may be formed of a metal of a conductive material having a circular or polygonal cross-section so that an electric current can be moved, and in an embodiment, it may be formed in a cylindrical shape and include copper, silver or stainless material.

The first switchgear terminal cap 322 has one side open to surround the first R-phase switchgear terminal 321a to the first N-phase switchgear terminal 321d, respectively, and the first R-phase switchgear terminal 321a from the other side. ) to the first N-phase switchgear terminal cap (322a) to the first N-phase switchgear terminal cap (322d) having a cylindrical shape each perforated to pass through.

The second switchgear terminal cap 332 has one side open to surround the second R-phase switchgear terminal 331a to the second N-phase switchgear terminal 331d, respectively, and the second R-phase switchgear terminal 332a from the other side. ) to the second N-phase switchgear terminal cap (322a) to the second N-phase switchgear terminal cap (322d) having a cylindrical shape each perforated to pass through.

Referring to FIG. 6 , the mounting stand 400 for replacing the uninterruptible transformer according to the fourth embodiment of the present invention, in which the rotating bushing 100 is coupled and mountable, is installed on the ground so that the rotating bushing 100 is mounted on the ground. It includes a support part 410 formed to be spaced apart in height and a rotation bushing fixing part 420 formed to be able to fix the rotation bushing 100 to the upper end of the support part 410 .

The support part 410 includes a first support plate 411 installed on the ground, a second support plate 412 spaced apart from the first support plate 411 and installed on the ground, and vertical from the upper surface of the first support plate 411 . A first pillar 413 extending in the direction, a second pillar 414 extending in a vertical direction from the upper surface of the second support plate 412, and extending in a vertical direction from an upper end of the first pillar 413 The support 415 and the support 415 formed to pass through the rotating bushing fixing part 420 protrude from both end surfaces of the support 415 so that the support 415 is rotatable by 360 degrees to the first pillar 413 and the second pillar. (414) respectively.

The support portion 410 has a diameter of the middle portion passing through the support 415 is smaller than the diameter of the support, and the support rotation shaft 416 is formed in a cylindrical shape to pass through the first column 413 or the second column 414. includes

The support rotation shaft 416 is a first support rotation shaft 416a passing through the first pillar 413 at one side of the support 415 and a second rotation shaft 414 passing through the second pillar 414 at the other side of the support 415 . It is formed by two supporting rotation shafts (416b).

The first support plate 411 and the second support plate 412 are formed in a circular or polygonal plate shape on the ground and are installed on the ground to support the first and second columns 413 and 414 of high-strength stainless steel. It may be formed of or include polyethylene, polypropylene, polycarbonate, etc. having high insulating properties.

The first pillar 413 and the second pillar 414 may be formed as cylindrical or polygonal pillars extending vertically from the upper surfaces of the first supporting plate 411 and the second supporting plate 412, It may be formed of high-strength stainless steel to support the support 415 or may include polyethylene, polypropylene, polycarbonate, etc. having high insulation properties.

The support 415 is vertically extended in the lateral direction from the top of the first pillar 413 and may be formed as a circular pillar to be coupled to the second pillar 414, and has high insulating properties such as polyethylene, polypropylene, polycarbonate, etc. It may be formed including

The rotating bushing fixing part 420 is rotatable by 360 degrees along the circumference of the support 415 so that the center is perforated to form a hollow, and the support 415 passes along the hollow terminal rotating member 421. The rotating bushing fixing terminal 422 protruding from the outer surface of the terminal rotating member 421 so that the rotating bushing 100 can be coupled thereto, the inside is perforated to surround the outside of the rotating bushing fixing terminal 422 It includes a rotating bushing fixing cap 423 of a hollow shape.

The terminal rotating member 421 is formed in a cylindrical shape having a hollow center perforated so as to be rotatable by 360 degrees along the circumference of the support, and can be rotated along the circumference of the support.

The rotating bushing fixing terminal 422 may be formed in a circular or polygonal column shape with a screw thread formed on an outer surface thereof to protrude from the surface of the terminal rotating member 421 to be coupled with the rotating bushing 100 .

One side of the rotating bushing fixing cap 423 is opened to surround the outside of the rotating bushing fixing terminal 422, and the rotating bushing fixing terminal 422 from the other side is formed in a perforated cylindrical shape to pass through. can

The terminal rotating member 421 has a center perforated so as to be rotatable along the outer periphery of the support 415, a hollow is formed, and the first terminal rotating member 422a through which the support 415 passes along the hollow, the first At a position spaced apart from the first terminal turntable 422a, the center is perforated so as to be rotatable along the outer periphery of the supporter 415 to form a hollow, and a second terminal turntable 422b through which the supporter 415 penetrates along the hollow. , A third terminal rotation rod through which the center is perforated so as to be rotatable along the outer periphery of the support 415 at a position spaced apart from the second terminal rotation table 422b and a hollow is formed and the support 4150 penetrates along the hollow ( 422c), the center is perforated so as to be rotatable along the outer periphery of the support 415 at a position spaced apart from the third terminal rotary table 422c to form a hollow, and the support 415 is penetrated along the hollow fourth It includes a terminal rotary table (422d).

The rotation bushing fixing terminal 422 is a first bushing fixing terminal 422a provided on the outer surface of the first terminal rotation table 421a so that the R-phase AC current is movable. A second bushing fixing terminal (422b) provided on the outer surface of the second terminal rotary table (421b) so that the S-phase AC current is movable. The third bushing fixing terminal 422c provided on the outer surface of the third terminal rotary table 421c so that the T-phase AC current is movable, and the outer surface of the fourth terminal rotary table 421d so that the N-phase AC current is movable It includes a fourth bushing fixing terminal (422d) provided in.

The rotating bushing fixing cap 423 has a diameter larger than the diameter of the first bushing fixing terminal 422a so as to surround the outside of the first bushing fixing terminal 422a, so that the outside is protruded to form a screw trough. A fixing cap 423a, a second bushing fixing cap having a diameter larger than the diameter of the second bushing fixing terminal 422b to surround the outside of the second bushing fixing terminal 422b and protruding outside to form a screw trough ( 423b), a third bushing fixing cap 423c having a diameter larger than the diameter of the third bushing fixing terminal 422c to surround the outside of the third bushing fixing terminal 422c and protruding outside to form a screw trough; A fourth bushing fixing cap 423d having a diameter larger than the diameter of the fourth bushing fixing terminal 422d to surround the outside of the fourth bushing fixing terminal 422d and protruding from the outside to form a screw trough is included.

The first bushing fixing terminal 422a to the fourth bushing fixing terminal 422d are respectively coupled to the rotation bushing 100 corresponding to the R phase, S phase, T phase, and N phase of alternating current and rotate from the ground. The bushing 100 is fixed to be spaced apart.

Referring to FIG. 7 , the insulating cover 500 for replacing the uninterruptible transformer according to the fifth embodiment of the present invention, which is coupled to the rotary bushing 100 and can be insulated, has an open lower surface and a rectangular parallelepiped in which the front and the rear are respectively perforated in a circular shape. The cover body 510 formed in a shape protrudes circularly from the front of the cover body 510 to the front, and protrudes circularly from the rear of the cover body 510 to the rear so that the rotating bushing 100 can pass through. and a cover protection cap 520 formed to do so.

The cover body 510 has a lower surface and a right wall surface open, and the first body 511 in the shape of a cuboid having a semicircular groove formed by indenting to the left from the right ends of the front and rear surfaces, the lower surface and the left wall surface are open The second body 512 of a rectangular parallelepiped shape, which is recessed from the left ends of the front and rear surfaces to the right and formed with a semicircular groove, is provided at the lower end of the front surface of the second body 512, and protrudes forward to the first A fixing device 513 that is inserted into the body 511 and formed to be coupled, the first body 511 and the second body 512 are spread apart so that the first body can be inserted into the rotating bushing 100 . and a connecting device 514 coupled to the upper surface of the , and the other side coupled to the upper surface of the second body.

The cover protection cap 520 includes a front protection cap 521 protruding in a circular shape toward the front surfaces of the first body 511 and the second body 512 and the first body 511 and the second body ( It includes a rear protective cap 522 that protrudes circularly to the rear of the 512).

The front protection cap 521 includes a first semicircular protection cap 521a protruding to the front in a semicircular shape along the circumference of the semicircular groove of the first body 511 and a semicircular groove of the first body 511 . It includes a second semi-circular protective cap (521b) formed to protrude to the front along the circumference.

The rear protective cap 522 includes a third semi-circular protective cap 522a and a semi-circular groove of the second body 512 protruding toward the rear in a semi-circular shape along the perimeter of the semi-circular groove of the first body 511 . It includes a fourth semi-circular protective cap (522b) formed to protrude to the rear along the circumference.

The first body 511 and the second body 512 may be formed of a plastic material having insulating properties, and may include cross-linked polyethylene or polypropylene having high insulating properties.

The fixing device 513 protrudes from the lower front end of the second body 512 and extends vertically toward the first body 511 to be inserted into the coupling groove formed in the first body 511 to be engageable. do.

The connecting device 514 has one side coupled to the upper surface of the first body 511 , and the other end coupled to the upper surface of the second body 512 , so that the first body 511 and the second body 514 are coupled to each other. (512) can be spread apart while maintaining engagement.

Referring to Figure 10, the uninterruptible transformer replacement method according to the sixth embodiment of the present invention is a first connection terminal coupling that couples the first detachable connection terminal (20a) to the first bushing terminal (11a) of the target transformer (10a) Step (S1), a first rotary bushing coupling step (S2) of coupling the first rotary bushing (100a) to the first detachable connection terminal (20a) (S2), a first lead-in line (1a) to the first rotary bushing (100a), A first lead-in line coupling step (S3) of coupling 2a), a first bypass line coupling step (S4) of coupling a first bypass line 200a to the first rotating bushing 100a, the first bypass A switch coupling step of coupling the automatic transfer switch 300 to the line 200a (S5), a second bypass line coupling step of coupling the second bypass line 200b to the automatic transfer switch 300 (S6) , a second rotary bushing coupling step (S7) of coupling the second rotary bushing 100b to the second bypass line 200b, and coupling the second lead lines 1b and 2b to the second rotary bushing 100b. A second lead-in line coupling step (S8), a pre-transformer coupling step of coupling the second detachable connection terminal 20b to the second bushing terminal 100b of the preliminary transformer 10b (S9), the second rotary bushing 100b ) to rotate the second rotary bushing coupling step (S10) of coupling to the second detachable connection terminal (20b), a bushing terminal separation step of separating the first rotary bushing (100a) from the first bushing terminal (11a) (S12) and a bushing terminal mounting step (S13) of coupling the first bushing terminal 11a to the mounting stand 400.

In the uninterruptible transformer replacement method according to the sixth embodiment of the present invention, after the second rotating bushing coupling step (S10) is performed, the automatic transfer switch 300 is operated to supply power from the preliminary transformer 10b. The method further includes an automatic transfer switch operation step (S11) of supplying money to the first lead-in line (1a) connected to the first rotary bushing (100b).

In the process of performing the automatic transfer switch operation step (S11) to replace the target transformer 1A, a voltage is supplied to the first lead-in line 1a from the preliminary transformer 10b, so that a blackout can be prevented.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto. It is clear that the transformation or improvement is possible by the person.

All simple modifications and variations of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

1: incoming line
1a: 1st incoming line
1b : 2nd incoming line
2: lead-in terminal
2a: 1st incoming wire terminal
2b: 2nd incoming wire terminal
10: transformer
10a: target transformer
10b: spare transformer
11: bushing terminal
11a: first bushing terminal
11b: second bushing terminal
12: fixed bushing
20: detachable connection terminal
21: connecting member
22: connecting member protection cap
23: transformer coupling groove
24: crimping member
25: bolt fastening hole
100: rotating bushing
110: bushing part
111: bushing body
112: incoming line coupling hole
120: bypass coupling part
121: bypass coupling terminal
122: bypass terminal cap
130: transformer coupling part
131: transformer coupling shaft
132: transformer coupling terminal
133: transformer coupling cap
134: rotating bushing spring
200: bypass line
200a: first bypass line
200b: second bypass line
210: insulated wire part
211: conductor wire
212: insulation coating
220: first bypass connector
221: first bypass terminal
222: first bypass terminal cap
230: second bypass connector
231: second bypass terminal
232: second bypass terminal cap
300: automatic transfer switch
310: transfer switch
311: switch case
312: R-phase switchgear
313: S-phase switchgear
314: T-phase switchgear
315: N-phase switchgear
316: operation switch
316a: operation button
316b: stop button
320: first switchgear connector
321: first switchgear terminal unit
321a: first R-phase switching terminal
321b: first S-phase switching terminal
321c: first T-phase switching terminal
321d: 1st N-phase switching terminal
322: first switchgear terminal cap
322a: 1st R-phase opening/closing terminal cap
322b: first S-phase opening/closing terminal cap
322c: first T-phase opening/closing terminal cap
322d: 1st N-phase opening/closing terminal cap
330: second switchgear connector
331: second switchgear terminal part
331a: 2nd R phase switching terminal
331b: 2nd S-phase switching terminal
331c: 2nd phase T on/off terminal
331d: 2nd N-phase switching terminal
332: second switchgear terminal cap
332a: 2nd R phase open/close terminal cap
332b: 2nd S-phase opening/closing terminal cap
332c: 2nd T-phase opening/closing terminal cap
332d: 2nd N-phase opening/closing terminal cap
400: stand stand
410: support
411: first support plate
412: second support plate
413: first pillar
414: second pillar
415: support
416: support competition
416a: 1st support rotation axis
416b: 2nd support rotation axis
420: rotating bushing fixing part
421: terminal rotating member
421a: first terminal rotating stand
421b: second terminal rotation table
421c: 3rd terminal turntable
421d: 4th terminal turntable
422: rotating bushing fixed terminal
422a: first bushing fixed terminal
422b: second bushing fixed terminal
422c: third bushing fixed terminal
422d: 3rd bushing fixed terminal
423: rotating bushing fixing cap
423a: first bushing fixing cap
423b: second bushing fixing cap
423c: 3rd bushing fixing cap
423d: 4th bushing fixing cap
500: insulation cover
510: cover body
511: first body
512: second body
513: fixing device
514: connection device
520: cover protection cap
521: front protection cap
521a: first semi-circular protective cap
521b: second semicircle protective cap
522: back protection cap
522a: third semicircle protective cap
522b: fourth semicircle protective cap

Claims (28)

In the separate connection terminal coupled to the bushing terminal of the transformer,
a connecting member having a transformer coupling groove formed by recessing one side to be coupled to the bushing terminal, and having a main body formed in a cylindrical shape;
a hollow connecting member protection cap formed to surround the connecting member and having a perforated inner side; and
a pressing member protruding from the side of the connecting member and formed in a flat plate shape, and provided with a bolt fastening hole formed by being drilled at one side;
detachable connector including
The method according to claim 1,
The compression member is
A detachable connection terminal, characterized in that the bolt passes through the bolt fastening hole so that the connection member is compressed and coupled to the bushing terminal.
In the rotary bushing capable of being coupled to the detachable connection terminal according to claim 1,
a bushing portion formed so that the lead-in line is inserted from the outside and can be coupled;
a bypass coupling part connected to one side of the bushing part so that a bypass wire is inserted and coupled from the outside; and
a transformer coupling part formed by being connected to the other side of the bushing part so as to be rotatably coupled to the detachable connection terminal;
A rotating bushing comprising a.
4. The method according to claim 3,
The bushing part,
a bushing body formed of a flat plate to allow current to move; and
a lead-in coupling hole formed by being perforated in a plurality from one side of the bushing body so that a lead-in wire is inserted and coupled from the outside;
A rotating bushing comprising a.
5. The method according to claim 4,
The bypass coupling part,
a bypass coupling terminal protruding from one side of the bushing so as to be coupled to the end of the lead-in line; and
a bypass terminal cap formed to surround the outer side of the bypass coupling terminal and having a perforated inner side;
A rotating bushing comprising a.
6. The method of claim 5,
The transformer coupling unit,
a transformer coupling shaft formed to protrude cylindrically from the other side of the bushing so as to be coupled to the connection member;
a transformer coupling terminal coupled to the distal end of the transformer coupling shaft and having a cross-section formed in the same shape as the other side of the coupling member so as to be in contact with the coupling member to allow current to move;
a transformer coupling cap having a hollow shape formed to surround the outside of the transformer coupling terminal and having a perforated inside; and
a rotating bushing spring having one side connected to the transformer coupling terminal and the other side connected to the transformer coupling cap to move the transformer coupling cap forward and backward;
A rotating bushing comprising a.
7. The method of claim 6,
The transformer coupling cap,
A rotating bushing with a screw trough formed on the inner surface so as to be rotated and coupled to a screw line formed protruding from the outside of the connecting member protection cap.
8. The method of claim 7,
The bypass terminal cap is
A rotating bushing protruding from the outer surface so as to be engageable with the bypass line and having a screw line.
In the bypass line engageable to the rotary bushing according to claim 3,
Insulated wire portion formed linearly so that the current can move;
a first bypass connector formed to protrude from one side of the insulating wire portion so as to be coupled to the rotating bushing; and
a second bypass connector protruding from the other side of the insulating wire part;
A bypass line containing
10. The method of claim 9,
The insulated wire part,
Conductor wire formed of a conductor material capable of moving electric current; and
an insulating coating formed to surround the outside of the conductor wire;
A bypass line containing
11. The method of claim 10,
The first bypass connector is
a first bypass terminal extending from one end of the conductor wire; and
a first bypass terminal cap having a hollow inner side so as to surround the first bypass terminal;
A bypass line containing
12. The method of claim 11,
The second bypass connector is
a second bypass terminal extending from the other end of the conductor wire; and
a second bypass terminal cap having a hollow inner side so as to surround the second bypass terminal;
A bypass line containing
12. The method of claim 11,
The first bypass terminal cap,
A bypass line protruding from the inside so as to be coupled to the rotary bushing to form a screw valley, the diameter of which is larger than the diameter of the first bypass terminal therebetween, and is rotated and coupled to the rotary bushing.
In the automatic transfer switch capable of being coupled to the bypass line according to claim 9,
a switching switch formed so as to be able to open and close each of the three-phase alternating current;
a first switchgear connector protruding from one side of the switching switch; and
a second switch connector protruding from the other side of the switch-over switch;
Automatic transfer switch including
15. The method of claim 14,
The transfer opening and closing part,
an opener case having a space formed therein;
an R-phase switch formed inside the switch case and configured to open and close an R-phase alternating current;
an S-phase switch formed to be spaced apart from the R-phase switch and formed inside the switch case to open and close an S-phase alternating current;
a T-phase switch formed to be spaced apart from the S-phase switch and formed inside the switch case to open and close the T-phase AC current;
an N-phase switch formed to be spaced apart from the T-phase switch and formed inside the switch case to open and close an N-phase alternating current; and
an operation switch connected to each of the R-phase switchgear to the N-phase switchgear to select ON/OFF of the R-phase switchgear to the N-phase switchgear;
Automatic transfer switch including
16. The method of claim 15,
The operation switch is
an operation button for controlling the R-phase switchgear to the N-phase switchgear to perform an opening/closing operation; and
a stop button for controlling to stop the opening and closing operation of the R-phase switchgear to the N-phase switchgear;
Automatic transfer switch including a.
17. The method of claim 16,
The first switchgear connector,
a first switchgear terminal unit provided on one side of the transfer switchgear and formed to allow an alternating current to move; and
a first switchgear terminal cap having a hollow inner side so as to surround the first switchgear terminal part;
Automatic transfer switch including a.
18. The method of claim 17,
The second switchgear connector,
a second switchgear terminal unit provided on the other side of the transfer switchgear and formed to allow an alternating current to move; and
a second switchgear terminal cap having a hollow inner side of the second switchgear terminal part;
Automatic transfer switch including a.
19. The method of claim 18,
The first switchgear connector,
Each of the R-phase switchgear to one side of the N-phase switchgear is connected,
The second switchgear connector,
An automatic transfer switch that is respectively connected to the other side of the R-phase switchgear to the N-phase switchgear and is respectively connected to one side.
In the mounting stand formed to be mounted by coupling the rotary bushing according to claim 3,
a support part installed on the ground so that the rotating bushing is spaced apart from the ground by a predetermined height; and
a rotating bushing fixing part formed so as to be able to fix the rotating bushing to the upper end of the support part;
Mounting stand that includes.
21. The method of claim 20,
The support part,
a first support plate installed on the ground;
a second support plate spaced apart from the first support plate and installed on the ground;
a first pillar extending in a vertical direction from an upper surface of the first supporting plate;
a second pillar extending in a vertical direction from an upper surface of the second supporting plate;
a support extending in a vertical direction from an upper end of the first pillar and formed to pass through the rotating bushing fixing part; and
The support rotation shaft protrudes from both end surfaces of the support so that the support is rotatably coupled to the first and second columns, respectively.
Mounting stand that includes.
22. The method of claim 21,
The rotating bushing fixing part,
a terminal rotating member having a hole in the center of which it is rotatably rotatable along the circumference of the support, and through which the support passes;
a rotating bushing fixing terminal protruding from the outer surface of the terminal rotating member and formed so that the rotating bushing can be coupled; and
a rotating bushing fixing cap of a hollow shape whose inner side is perforated so as to surround the outside of the rotating bushing fixing terminal;
Mounting stand that includes.
23. The method of claim 22,
The terminal rotating member,
a first terminal rotator having a hollow formed therein by being rotatably rotatable along the outer periphery of the support, and through which the support passes along the hollow;
a second terminal turntable through which a hollow is formed in the center so as to be rotatable along an outer circumference of the support at a position spaced apart from the first terminal turntable, and the support passes along the hollow;
a third terminal turntable through which a hollow is formed in the center so as to be rotatable along the outer circumference of the support at a position spaced apart from the second terminal turntable, and the support passes along the hollow; and
a fourth terminal turntable through which a hollow is formed in the center so as to be rotatable along the outer circumference of the support at a position spaced apart from the third terminal turntable, and the support passes along the hollow;
Mounting stand that includes.
24. The method of claim 23,
The rotating bushing fixing terminal,
a first bushing fixing terminal provided on the outer surface of the first terminal rotary table so that the R-phase alternating current is movable;
a second bushing fixing terminal provided on the outer surface of the second terminal rotating table so that the S-phase alternating current is movable;
a third bushing fixing terminal provided on the outer surface of the third terminal rotating table so that the T-phase AC current is movable; and
a fourth bushing fixing terminal provided on the outer surface of the fourth terminal rotating table so that the N-phase alternating current is movable;
Mounting stand that includes.
25. The method of claim 24,
The rotating bushing fixing cap,
a first bushing fixing cap having a diameter larger than the diameter of the first bushing fixing terminal to surround the outside of the first bushing fixing terminal and protruding from the outside to form a screw trough;
a second bushing fixing cap having a diameter larger than the diameter of the second bushing fixing terminal to surround the outside of the second bushing fixing terminal and protruding from the outside to form a screw trough;
a third bushing fixing cap having a diameter larger than the diameter of the third bushing fixing terminal to surround the outside of the third bushing fixing terminal and protruding from the outside to form a screw trough; and
a fourth bushing fixing cap having a diameter larger than the diameter of the fourth bushing fixing terminal to surround the outside of the fourth bushing fixing terminal and protruding from the outside to form a screw trough;
Mounting stand that includes.
In the insulating cover formed to be insulated by being coupled to the rotary bushing according to claim 3,
a cover body having an open lower surface and a rectangular parallelepiped shape with a front and a rear surface perforated in a circular shape; and
a cover protection cap protruding circularly from the front surface of the cover body to the front and protruding circularly from the rear surface of the cover body to allow the rotation bushing to pass therethrough;
Insulation cover comprising.
27. The method of claim 26,
The cover body is
a first body having a rectangular parallelepiped shape, the lower surface and the right wall surface being opened, and recessed from the right ends of the front and rear surfaces to the left to form a semicircular groove;
a second body in the shape of a rectangular parallelepiped having an open lower surface and a left wall surface, and recessed from the left ends of the front and rear surfaces to the right to form a semicircular groove;
a fixing device provided at the lower front end of the second body and protruding forward to be inserted into and coupled to the first body; and
a connecting device in which the first body and the second body are spread apart and are coupled to the upper surface of the first body to be inserted into the rotating bushing, and the other end is coupled to the upper surface of the second body;
Insulation cover comprising.
a first connection terminal coupling step of coupling a first detachable connection terminal to a first bushing terminal of the target transformer;
a first rotary bushing coupling step of coupling a first rotary bushing to the first detachable connection terminal;
a first lead-in coupling step of coupling a first lead-in to the first rotating bushing;
a first bypass line coupling step of coupling a first bypass line to the first rotating bushing;
a switchgear coupling step of coupling an automatic transfer switch to the first bypass line;
a second bypass line coupling step of coupling a second bypass line to the automatic transfer switch;
a second rotary bushing coupling step of coupling a second rotary bushing to the second bypass line;
a second lead-in coupling step of coupling a second lead-in to the second rotary bushing;
a pre-transformer coupling step of coupling a second detachable connection terminal to the second bushing terminal of the pre-transformer;
a second rotating bushing coupling step of rotating the second rotating bushing to be coupled to the second detachable connection terminal;
a bushing terminal separation step of separating the first rotary bushing from the first bushing terminal; and
a bushing terminal mounting step of coupling the bushing terminal to a mounting stand;
An uninterruptible transformer replacement method comprising a.

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