KR20110011336A - A live front load breaker of an elbow connector - Google Patents

Abstract

PURPOSE: A device for opening and closing a live cable for an elbow connector is provided to increase the reliability of equipment operation by supplying the firm structure of a support frame comprising an XY axis movement controller and easily fixing a transformer. CONSTITUTION: An XY axis movement controller(100) comprises a support frame(110) with a width held on the primary side of a transformer and a programmable logic controller. The XY axis movement controller includes a guide unit(120) which guides a Y axis movement. An elbow opening and closing unit(200) includes an elbow restricting unit which clamps the elbow connector and a position sensor which is restricted in the elbow restricting unit. A reflection plate is assembled with a connection target of a bushing insert of the transformer. A coordinate movement controller(300) is electrically connected to the programmable logic controller and the position sensor.

Description

Elbow connector live switchgear {A LIVE FRONT LOAD BREAKER OF AN ELBOW CONNECTOR}

The present invention is to replace the elbow connection member in the live state and uninterrupted state in the replacement and maintenance of the aged transformer in the live state, and elbow connection material for connecting to the junction of the cable junction or insulation plug connected to the mobile transformer car, the bushing insert of the new transformer The present invention relates to live switchgear, and in particular, by improving the applicant's source technology, simplification of equipment structure and compatibility applicable to both single-phase and three-phase transformers, simplicity of movement and installation work, and accurate connection of separated elbow connection materials. It relates to an elbow connecting material live switchgear that maximizes work and safety.

In general, the underground distribution line is a means for dropping the voltage to supply a low voltage of 220 / 380V suitable for a variety of home and industrial equipment at a special high voltage of 22.9 kV supplied through a power transmission line from a power plant when power is supplied to various facilities such as homes or industrial facilities. Ground-mounted transformers are used.

Such a ground-mounted transformer is known as the three-phase transformer of FIG. 2 having three performances of the single-phase transformer of FIG. 1 and the single-phase transformer as described above.

Three-phase transformers have the advantages of occupying area, price, and weight less than three units of single-phase transformers.

Such a ground-mounted transformer should be replaced with a transformer that operates normally when an abnormality (fault) occurs in the transformer due to aging or overload. In case of replacing the transformer, it is assumed that the power is connected lively using an uninterruptible transformer replacement vehicle. In addition, it is performed by an uninterruptible method of continuously supplying power to a customer such as an office or a factory, or by replacing all transformers between the switch and the switch with a normally operating transformer.

In the uninterruptible method, the extra high voltage side cable and the low side voltage cable of the transformer are separated, respectively, and connected to the mobile transformer vehicle in a live state to continuously supply power to replace the transformer.

The ground-mounted transformer 1 has a left and right elbow connecting member (H1A to H3A) (H1B to H3B) provided at the tip of the underground wired cable to the high voltage cable (primary side), as shown in FIG. The elbow connecting member is separated in a live state in the bushing B while being connected to the bushing insert B / I of each bushing B of the transformer 1 having different phase heights.

In this state, as shown in FIG. 4, the cable clamp 5 connected to the mobile transformer car on one side is toggled to a junction clamp 3 mounted on the junction stand 3 using the parking stand 4 of the transformer 1. By separating the left elbow connecting member (H1A) separated in the live state in the temporary state by connecting to the cable junction (5) and separating the remaining elbow connecting members (H2A, H2A) in a live state, The elbow connecting members H1B to H3B on the right side are connected to and separated from the insulation plug SOP 6 mounted on the parking stand 4 of the transformer 1.

The new transformer is replaced with an uninterruptible power by a process of disassembling the elbow connecting member which is temporarily separated and connected to the cable junction 5 or the insulating plug 6 and connecting to the bushing insert B / I of the new transformer. Done.

The replacement of the new transformer by the uninterruptible method is a natural method of applying the same method to the single-phase transformer of FIG.

In such an uninterruptible transformer replacement, it is most important that the elbow connecting member connected to the transformer to be replaced is disconnected in a live state and connected to a new transformer.

Therefore, the present applicant is an 'elbow connector live switchgear' that can maximize the safety and workability by disconnecting and connecting the elbow connection material according to the uninterrupted replacement of the ground transformer as the live state accurately, quickly and remotely from the safety distance. It has been pre-registered as patent registration No. 10-824584 and No. 10-842321.

The applicant's source technology, as mentioned above, provides maximum safety and workability by separating and connecting the live elbow connection material by remote control outside the safety distance.

However, the applicant's source technology is that the device is large and heavy, and is composed of a width that spans the extra high pressure (primary) side and the low pressure (secondary) side of the transformer, resulting in a large volume, and Inconvenient storage after use and a programmable logic controller (PLC) is assembled on the guide means of the XY axis movement adjusting means, and is connected to the coordinate movement control means after mounting of the elbow opening / closing means (elbow restraint). There was a disadvantage that incomplete connection of the connection terminal of the cable occurs.

Furthermore, in the applicant's pre-registered technology, the elbow connecting member by the elbow opening and closing means is disconnected lively and temporarily connected to the cable junction or insulation plug temporarily installed in the transformer, and the connection target of the bushing insert of the new transformer. The control setting of the elbow opening and closing means for the correct connection of the device had a very complicated disadvantage.

In particular, the applicant's pre-registration technology has a limitation in the operation of the equipment because the support frame mounting of the XY axis movement adjusting means is provided in a fixed structure applied only to the standard enclosure of the transformer.

And the applicant's source technology is to check the connection position in the process of connecting the elbow connection member in the live state to the connection target of the cable junction or insulation plug of the temporary connection and the bushing insert of the new transformer with the elbow opening and closing means separated. Because the function is not implemented, providing the correct connection by several coordinate setting operations has the disadvantage that the uninterruptible operation is very cumbersome and not easy.

Accordingly, the present invention aims to improve the disadvantages pointed out in the applicant's source technology to maximize the volume reduction and weight of the device as well as the safety of work and convenience of installation work.

In addition, the present invention improves the installation position of the programmable logic controller (PLC) by eliminating the unsafe connection of the connecting cable during the work process, the reliability of the equipment operation, and the rigid structure of the frame to build the XY axis movement adjusting means to ensure the lifespan It is aimed at maximizing.

In addition, an object of the present invention is to provide a compatibility of the use of equipment that can be installed and used in a variable size of the enclosure of the transformer can be applied to both single-phase, three-phase transformer.

In addition, the present invention provides the connection position of the elbow connecting member in the elbow opening and closing means of the elbow opening and closing means of the cable junction, insulation plug, bushing insert of the new transformer, and the operation at the correct connection position. Its purpose is to provide maximum convenience and safety.

In addition, the present invention provides the movement and storage of the XY axis movement adjustment means by the storage / transportation means, and the movement and storage of the elbow opening and closing means by the coordinate movement control means to maximize the convenience of movement and storage. The purpose.

In addition, an object of the present invention is to maximize the convenience and stability by implementing a fixed operation by the remote control after the installation of the XY axis movement adjustment means.

Elbow connecting material live opening and closing device of the present invention for achieving the above object,

It is constructed of a plurality of left and right and upper frames on the lower frame, the support frame having a width across the extra high pressure side (primary side) of the transformer, built in a horizontal direction between the left and right frames of the support frame to guide the Y-axis movement Guide means, an X-axis moving plate assembled to move in the X-axis, the Y-axis driving means is provided on the upper frame and the left and right frames of the support frame to provide the Y-axis movement of the guide means, the upper portion of the support frame XY axis movement adjusting means constructed on a frame and configured with a programmable logic controller for controlling the XY axis movement of the X axis moving plate and the guide means;

And an elbow restrainer for assembling and removing the elbow connector to be detached / connected to the X-axis moving plate, a restraining part driving means for driving the forward and backward movement of the elbow restraint, and a position sensor provided in the elbow restraint. Elbow opening and closing means;

A reflector plate assembled with a detachable material on a connection object of a cable junction or an insulation plug temporarily installed in a transformer corresponding to the position sensor or a bushing insert of the transformer;

And a coordinate movement control means electrically connected to the programmable logic controller and the position sensor to control the XY axis movement control of the X axis movement plate and the guide means, the elbow restraint clamp of the elbow opening and closing means, and the forward and backward movement control. It is characterized by the configuration.

The elbow opening and closing means of the present invention provides an accurate connection operation of the elbow connecting member which is separated by the position sensor of the elbow restraint by detecting the position of the reflective plate mounted on the connection object of the cable junction or the insulation plug or the bushing insert of the transformer. Is configured to

That is, the position sensor irradiates light to the reflector to set a connection point by detecting the light reflected by the reflector, and the elbow connector is separated from the elbow restraint by forward control of the cable junction, insulation plug or bushing insert. To control the connection at a certain distance to the connection target.

At this time, the position sensor and the reflector are each composed of a pair, the pair of position sensor is characterized in that the forward operation of the elbow restraint is set by the simultaneous position detection of the pair of reflector in the 300mm range.

In addition, the pair of reflecting plates are characterized in that they can be configured on the assembly plate of the detachable material to be connected to the cable junction or the insulating plug or the bushing insert, and can be used when necessary for the connection object.

In addition, the support frame of the present invention can be used in accordance with the size of the enclosure of the transformer by a setting frame that is set by moving a vertical set to the upper side left and right frame to the locking frame is caught on the upper door frame of the transformer. Both single and three-phase transformers can be applied, and the left and right clamping cylinders are built in the lower frame and clamp the lower frame of the transformer by forward and backward control or fasten the support frame to the transformer door frame by releasing the clamping. It is characterized by the configuration.

In addition, the present invention is characterized in that the support frame storage / transport means for the storage and transport of the support frame, and the pedestal to the coordinate movement control means for storing and transporting the elbow opening and closing means.

Such an elbow connecting member live switchgear of the present invention has the following effects.

First, there is an advantage of ease of use by lightening the device and maximizing mobility and storage.

Second, there is a reliability advantage of the equipment operation by the rigid structure of the support frame constituting the XY axis movement adjusting means and the convenience and robustness of the transformer fixing.

Third, there is an advantage that the elbow connection member separated by the elbow restraint of the elbow opening and closing means is provided to the connection target of the cable junction or the insulation plug or the bushing insert, thereby maximizing the quickness and workability of the uninterruptible method.

Fourth, the installation variable and width setting of the support frame are set to the width corresponding to the special high pressure part of the transformer, so that it can be applied to single-phase transformers or three-phase transformers that vary the size of the transformer's enclosure. have.

Hereinafter, the configuration and operation of the present invention for achieving the above object with reference to the accompanying drawings in detail.

Figure 5 shows the overall components of the elbow connector live opening and closing device of the present invention.

That is, the elbow connecting member live opening and closing device of the present invention is largely divided into XY axis movement adjusting means 100, elbow opening and closing means 200, coordinate movement control means 300, support frame storage / transportation means (400).

6 is an exploded perspective view illustrating the setting between the XY axis movement adjusting means 100 and the elbow opening and closing means 200, Figure 7 is the separation of the XY axis movement adjusting means 100 and the elbow opening and closing means 200 in the rear direction 8 is a perspective view of the state in which the elbow opening and closing means 200 is assembled to the XY axis movement adjusting means 100.

Referring to these drawings, the XY axis movement adjusting means 100 is a rectangular frame body formed of a pair of upper and left and right frames on a lower frame having a width spanning the extra high pressure side (primary side) of the transformer 1. Supporting means 110, the guide means 120 is constructed in a horizontal direction between the left and right frames of the support frame to guide the Y-axis movement, and the X-axis moving plate 130 assembled so as to move the X-axis in the guide means And, built on the upper frame and the left and right frame of the support frame 110 Y-axis driving means 140 for providing the Y-axis movement of the guide means 120, built on the upper frame of the support frame 110 Thus, a programmable logic controller (PLC) is configured to control the XY axis movement of the X axis moving plate 130 and the guide means 120.

The support frame 110 is assembled with a pair of locking pieces 112 and 112 to be engaged with the upper door frame (1a) of the transformer (1) to the left and right and to move in a vertical direction to the left and right frame of the support frame 110 is set variable It is assembled to the setting frame 111 and the lower frame of the support frame 110 to clamp the lower frame (1b) of the transformer (1) by the forward and backward control or by the clamping release the transformer support frame 110 (1) Left and right clamping cylinders 113 and 113 are assembled to bind to or release from the door frame.

As shown in FIG. 9, the setting frame 111 is configured by the rail body 115 slide-guided to the guide bar 114 assembled inside the left and right frames of the support frame 110. The setting plate 116 is configured by fastening the bolts B to the setting holes 117 which are assembled to the right and left frames of the support frame 110 by bolts B on the left and right sides of the frame 111.

Accordingly, the setting frame 111 according to the setting position of the setting plate 116 and the setting hole 117 processed in the left and right frames of the support frame 110, as shown in Figure 13, of the engaging pieces (112, 112) The height can be set to be used by varying the interval between the upper and lower division frames 1a and 1b of the single-phase or three-phase transformer.

And the left and right frames of the support frame 110 is configured with a handle (H / L) for ease of installation.

As shown in FIG. 10, the guide means 120 has a rectangular guide frame 121, which is constructed as a top and bottom and left and right supports over the left and right frames of the support frame 110, and left and right on a lower support of the guide frame. Screw rod 122 is rotated and supported by the bearing body on both sides and the interlock sprocket 123 is coupled to one side, and the drive sprocket 125 is connected to the interlock sprocket 123 and the chain (C) on one side of the guide frame 121 X-axis drive motor 124 having a) is configured.

At this time, the guide frame 121 is assembled to the rear of the left and right support screw nuts 126, 126 to move the Y-axis screw by the rotation of the left and right screw rods (141, 141) of the Y-axis driving means 140, Rail bodies 127 and 127 slide guided to the guide rails 142 and 142 assembled to the left and right frames of the support frame 110 are assembled to the side.

The X-axis moving plate 130 has an opening formed at a central portion thereof to allow the elbow restraining portion 210 of the elbow opening and closing means 200 to be described later, and a pair of rail bodies 131 and 131 assembled at the rear and top of the elbow opening and closing means may be mounted on the upper and lower sides. The slide rail is assembled to the guide rails 128 and 128 assembled to the frame, and the screw rod 122 is screwed to the screw nut 129 assembled to the lower rear surface.

Therefore, the X-axis moving plate 130 is screwed to the screw rod 122 by the chain (C) interlocking of the interlocking sprocket 123 by the drive of the drive sprocket 125 of the X-axis drive motor 124 The screw nut 129 is screwed to guide the rail bodies 127 and 127 along the guide rails 128 and 128 to move the X-axis in left and right slide movement.

The Y-axis driving means 140 is rotatably assembled by a bearing body in the left and right frames of the support frame 110 in a state in which the interlocking sprocket 143 is assembled on the top of the screw nuts 126 and 126 of the guide frame 121. The screw rods (141, 141) of both sides to be screwed to the), the guide rails (142, 142) for guiding the rail body (127, 127) assembled to both sides of the guide frame 121, and the screw rods (141, 141) It is composed of a Y-axis drive motor 144 assembled to the upper frame of the support frame 110 having a drive sprocket 145 to interlock chain (C) via the interlocking sprockets (143, 143) and a plurality of tension sprockets.

The guide frame 121 of the guide means 120 is the drive sprocket 145 and the chain (C) connected to the interlocking sprockets (143, 143) by the drive of the Y-axis drive motor 144 is rotated at the same time, the screw rod The rail bodies 127 and 127 are guided by the guide rails 142 and 142 by the screw movement of the screw nut 126 screwed to the 141 and 141 to implement the Y-axis movement.

On the other hand, the X-axis drive motor 124 of the guide means 120 and the Y-axis drive motor 144 of the Y-axis drive means 140 is a programmable logic controller configured on the upper frame of the support frame 110 ( It is electrically connected by PLC) and connecting cable (C / L).

As shown in Figures 5 to 8, 11 and 12, the elbow opening and closing means 200 is separated and assembled to the X-axis moving plate 130 of the guide means 120 in use.

The elbow opening and closing means 200 is largely divided into elbow restraining portion 210 for clamping the elbow connecting member from the left and right, and restraining portion driving means 220 for controlling the forward and backward operation of the elbow restraining portion.

That is, the restraint part driving means 220 of the elbow opening and closing means 200,

A front and rear vacuum cylinder 230 in which the elbow restraining portion 210 is assembled to the rod 231 at the left and right sides of the elbow connecting member,

A cylinder support plate 240 for supporting and fixing the front and rear vacuum cylinders and guiding forward and backward operations;

A pair of horizontal screw rods 250 horizontally moved forward and backward by screw rotation by screwing the nut body 241 of the cylinder support plate;

Front and rear support plates (270, 280) for supporting both ends of the plurality of horizontal guide rods 260 for supporting the horizontal movement of the cylinder support plate 240 at the same time as the rotation support of the screw rod;

A pair of interlocking sprockets 251 and support sprockets 252 coupled to the rear ends of the pair of horizontal screw rods 250 passing through the rear support plate 280 with rotational support,

The interlocking sprocket and the support sprocket is composed of a Z-axis drive motor 290 fixedly assembled by assembling a drive sprocket 291 connected by a chain (C).

At this time, the front support plate 270 and the rear support plate 280 has a central portion is formed so that the rod 231 and the body of the front and rear vacuum cylinder 230 can pass through.

In addition, the front support plate 270 is assembled and fixed to a pair of engaging pieces 271 engaging the upper surface of the X-axis moving plate 130 moving on the X-axis on the guide means 120 at the top.

The elbow restraining portion 210,

A guide block 211 screwed into the assembly material at the front end of the rod 231 of the front and rear vacuum cylinder 230,

Left and right clamp block 212 for receiving and clamping the left and right outer shape of the elbow connecting member at the front end with respect to the guide block;

Each of the clamp cylinders 213 opposed to the outside of the left and right clamp blocks to control the forward and backward operation;

A guide bracket 214 assembled with a bolt B through guide holes 215 on both sides to limit horizontal movement support and separation according to the forward and backward movement of the left and right clamp blocks 212,

The guide rod 216 is screwed into the guide bracket and the rear end is penetrated by the front support plate 270, the cylinder support plate 240, and the rear support plate 280 to prevent rotation of the pair of left and right clamp blocks 212. )and,

A protective housing which is assembled to surround the cylinder support plate 240 and the rear support plate 270 and is electrically connected to the clamp cylinder 213, the front and rear vacuum cylinder 230, and the Z-axis driving motor 290. 295.

This elbow opening and closing means 200 has the same configuration as the components of the applicant's prior registration No. 10-842321.

15 to 17, the left and right clamp blocks 212 of the elbow restraining unit 210 are provided with a position sensor 217, which is temporarily installed in the transformer 1 in response to the position sensor. A separate reflecting plate 218 is assembled to the cable junction 5 or the insulating plug 6 or the connection object of the bushing insert B / 1 of the transformer 1 to be detachable.

The reflective plate 218 is a medium means for detecting the position detection and the distance information of the position sensor 217, and detachable from the connection of the cable junction 5 or the insulation plug 6 or the bushing insert B / I. The assembly board 219 is comprised.

In this case, the assembly plate 219 is a left and right separation plates 219a and 219b which are opened and closed around a hinge 219c on one side, a pair of the reflection plates 218 and 218 assembled to each of the left and right separation plates, and It consists of lock parts 219d which lock the left and right separation plates 219a and 219b.

The assembling plate 219 has a left and right separation plate centered on the hinge 219c at the outer insulation layer of the connection object of the cable junction 5 or the insulation plug 6 or the bushing insert B / I. 219a and 219b are brought into close contact with each other and the reflective plate 218 is positioned by the locking assembly by the locking tool 219d.

The pair of position sensors 217 are electrically connected to the programmable logic controller (PLC) to control the XY axis movement of the X axis moving plate 130 and the guide means 120 and the elbow opening and closing means 200. The elbow restraining unit 210 is electrically connected to the coordinate movement control unit 300 and the connection cable (C / L) electrically connected to the restraining unit driving means 220 for driving forward and backward.

The position sensor 217 may be set within 300mm of the position information detection distance of the reflection plate 218.

The XY axis movement adjusting means 100 is provided for movement and storage by the separate support frame storage / transportation means 400, as shown in Figure 5 and 21.

The support frame storage / carrying means 400 includes a storage stand 410 having a pedestal function on which the support frame 110 is seated, a moving wheel 420 for providing movement of the storage stand, and both sides of the storage stand 410. It is composed of a pair of toggle clamps 430 is assembled to the clamping to bind both sides of the lower frame of the support frame 110.

5 and 18 to 20, the elbow opening and closing means 200 is seated on a pedestal 350 configured in the coordinate movement control means 300 is provided for movement and storage.

The coordinate movement control means 300 is electrically connected to the X-axis drive motor 124 of the guide means 120 of the XY axis movement adjusting means 100 and the Y-axis drive motor 144 of the Y-axis drive means. It is electrically connected to a programmable logic controller (PLC).

That is, the coordinate movement control means 300,

A pedestal 310 on which a movable wheel 320 is assembled at a lower portion thereof, and on which the protective housing 295 of the restraining portion driving means 220 is mounted;

It is connected to the programmable logic controller (PLC) and the connection cable (C / L), the X-axis drive motor 124 and Y-axis drive motor 144 of the XY axis movement adjusting means 100, the elbow opening and closing means A power on / off switch and a power confirmation lamp of the Z-axis driving motor 290 and the clamp cylinder 213 of the elbow restraining portion 210 constituting the restraint portion driving means 210 of the 200, and the XY axis movement. Y-axis adjusting lever for controlling the Y-axis driving motor 144 for the Y-axis movement of the guide means 120 of the adjusting means 100, and X-axis driving motor for the X-axis movement of the X-axis moving plate 130 124 and the XZ-axis adjusting lever, elbow opening and closing means for controlling the Z-axis driving motor 290 for the control of the forward and backward movement (Z-axis movement) of the elbow restraining portion 210 of the elbow opening and closing means (200) Equipped with a forward and backward cylinder switch for controlling the forward and backward operation of the front and rear pneumatic cylinder 230, and the left and right cylinder switch for controlling the left and right movement of the clamp cylinder 213 of the elbow restraint portion 210). Operation Half 330,

Positioning the operation panel 330 at a predetermined height on the upper portion of the pedestal 310, and consists of the upper support (340, 341) folded on the hinge 342 of one side, the upper support assembled with the operation panel (330) ( The protective housing 295 of the elbow opening / closing means 200 is mounted on the pedestal 310 in a state in which the 340 is folded backward by the hinge 342.

The upper support 340 has a fixing bracket 343 assembled to the lower support 341 and an assembly hole 345 processed to the upper support 340 by passing through the fixing hole 344 of the fixing bracket. The locking pin 346 is formed to penetrate through and the stop piece 347 is assembled to the rear of the lower supporter 342 to support the folded state of the operation panel 330.

The control panel 301 of the coordinate movement control means 300 is connected to the connection terminal and the connection cable (C / L) configured in the programmable logic controller (PLC) is the program type by the operation of the operation panel 330 The XY axis movement adjusting means 100 and the elbow opening and closing means 200 connected to the logic controller PLC are controlled.

The elbow opening and closing means 200 is stored in the pedestal 310 of the coordinate movement control means 300, as shown in Figure 19 and 20, as shown in Figure 20 of the XY axis movement adjusting means 100 Support frame 110 is stored in the support frame storage / transport means (400).

In this state, the XY-axis movement adjusting means 100 is moved to the transformer 1 to be replaced by using the moving wheel 420 assembled to the holder 410, and the binding of the bound toggle clamp 430 is released. To separate the support frame 110 of the XY axis movement adjusting means 100.

In this way, the support frame 110 of the separated XY axis movement adjusting means 100 by a worker using a handle, the engaging pieces 112, 112 assembled to the rear of the setting frame 111 to the upper door frame (1a) of the transformer (1) After mounting using, as shown in FIG. 13, by controlling the left and right clamping cylinders 113 and 113 assembled to the lower frame of the support frame 110 to reverse the a-type clamping piece 113a assembled at the rod end. The lower side of the support frame 110 is in close contact with the lower frame 1b of the transformer 1 to be firmly fixed.

At this time, the setting frame 111 is variable by setting the setting plate 116 on both sides with the setting hole 117 processed in the left and right frames of the support frame 110 to set the height of the engaging pieces (112, 112) single phase or Compatible with the space between the upper and lower subframes 1a and 1b of the three-phase transformer.

By using the movement wheel 320 of the pedestal 310 constituting the coordinate moving means 300 in a state where the XY axis movement adjusting means 100 is set on the extra high pressure side of the transformer 1 to be replaced. The elbow opening and closing means 200 mounted on the pedestal 310 is moved to the transformer 1 of the replacement object.

And X to remove the elbow opening and closing means 200 from the pedestal 310 and the X-axis movement on the guide means 120 using a pair of engaging pieces 271 assembled on the upper support plate 270 Set by mounting on the upper surface of the axis moving plate (130).

In this state, the control panel 330 is flipped forward with a hinge 342 connecting the upper support 340 and the lower support 341, and the locking pin 346 is fixed to the lower support 341. The fixing hole 344 of the 343 and the assembly hole 345 of the upper support 340 pass through the lock pin 346 and set to a standing state.

In this state, the programmable logic controller PLC of the XY axis movement adjusting means 100 and the control panel 330 and the elbow opening and closing means 200 are connected to each other with a connection cable C / L.

Of course, the programmable logic controller PLC also has a connection cable C / L with the X-axis driving motor 124 of the guide means 120 and the Y-axis driving motor 144 of the Y-axis driving means 140. By electrical connection.

In this state, the elbow restraining unit 210 of the elbow opening / closing means 200 is replaced by a programmable logic controller (PLC) by the manipulation of the coordinate shift control means 300 (three phase). Or move the coordinates to and separate the elbow connecting member (H1A) of the single phase).

In this state, the connection to the cable junction 5 temporarily installed in the transformer 1 is connected and separated.

As a result of this process, it is natural to repeatedly perform the separation on other elbow connectors H2A and H3A.

In this state, the insulating plug 6 is temporarily fixed to the transformer 1 to be replaced, and the elbow connecting member H1B on the other side is separated by the operation of the coordinate shift control means 300 to the insulating plug 6. The connection is located and separated in a live state.

Of course, the separation of the elbow connection member (H2B, H3B) in the live manner by the same method is natural.

At this time, the insulating cap (not shown) is connected to the bushing insert B / I of the transformer 1 by the control of the elbow opening and closing means 200 during the separation process of the elbow connecting member as described above.

After removing all three-phase elbow connecting materials through a series of single-phase separation process, the elbow connecting members in a live state are sequentially connected to the bushing insert (B / I) of the new transformer. The transformer will be replaced with a new transformer.

In this process, the elbow connector (H1A to H3A) (H1B to H3B), which is separated in a live state, is temporarily fixed to the transformer (1), the cable junction (5) or the insulation plug (6), and the bushing insert (B / Accurate connection with the connection object of I) is required.

However, the elbow connecting member can be separated by the clamping control of the elbow restraining unit 210 by the clamping operation. However, a means for accurately connecting the probe rod of the elbow connecting member to the small conductor connecting hole of the temporary connection targets is not provided. It is not easy to set the connection position.

This drawback is a pair of position sensors 217 assembled to the left and right clamp blocks 212 and 212 of the elbow restraining portion 210 of the present invention, the cable junction 5, the insulation plug 6, and the bushing insert to be connected. Accurate connection can be implemented by the reflecting plate 218 assembled to the connection object of (B / I).

That is, as shown in FIG. 14, the cable junction 5 is temporarily installed in the transformer 1 as shown in FIG. 15 in a state in which the left and right clamp blocks 212 separate the elbow connecting member by moving the coordinates of the elbow restraining unit 210. Or it is connected to the connection object of the insulation plug 6 or the bushing insert B / 1 of the said transformer 1.

At this time, the reflective plate 218 is positioned by the assembly plate 219 to be connected to the cable junction 5 or the insulating plug 6 or the bushing insert B / I.

In this state, the elbow restraining portion 210 of the elbow opening / closing means 200 is advanced by the manipulation of the coordinate shift control means 300 to advance to the set distance range between the reflector plate 218 and the position sensor 217. In the state of moving up, down, left, and right, the position information of the reflecting plate 218 is detected and the restraining unit driving means 220 is input by the programmable logic controller PLC by inputting the detected values detected at mutually coincident points. By controlling the elbow restrainer 210, the elbow connector is connected to the connection conductor of the cable junction 5, the insulation plug 6, and the bushing insert B / I.

Looking in more detail with respect to the connection operation of the elbow connecting member, a pair of position sensors 217 irradiates ultrasonic waves to the pair of reflecting plate 218 by the coordinate movement of the elbow restraining portion 210 located in the set distance range. In the simultaneous detection of the reflected ultrasonic waves, the elbow restraint unit 210 is advanced to provide accurate connection control.

At this time, the position sensor 217 is configured in the elbow restraining portion 210 and the corresponding reflection plate 218 is installed in the connection object corresponding to the pair consists of a pair of the set distance, preferably in the 300mm range The interlock is set for the forward operation of the elbow restrainer 210 by the simultaneous position detection of the reflector 218.

After completion of all operations of the new transformer connection process after the wire separation of the elbow connector, the connection cable (C / L) connected to the component of the present invention is disconnected and the XY axis movement is adjusted as shown in FIGS. 19, 20, and 21. The means 100 is stored in the support frame storage / transport means 400 after seating and moving, the elbow opening and closing means 200 is stored in the seat 310 of the coordinate movement control means 300 after movement.

1 is a front schematic view of a single phase ground transformer.

2 is a schematic front view of the connection state of the extra-high voltage cable of the three-phase ground transformer.

3 is an enlarged side view of the elbow connecting member connecting portion of FIG.

4 is an excerpt illustrating an installation state of a cable junction and an insulation plug in a three-phase transformer.

5 is an exploded perspective view of the constituent means of the present invention.

6 is an exploded perspective view seen from the front direction of the XY axis movement adjusting means and the elbow opening and closing means of the present invention.

7 is an exploded perspective view seen from the rear direction of the XY axis movement adjusting means and the elbow opening and closing means of the present invention.

8 is a perspective view showing a state in which the XY axis movement adjusting means and the elbow opening and closing means of the present invention are assembled.

Figure 9 is a perspective view of the XY axis movement adjusting means constituting the present invention, is an exploded perspective view of a partial cutaway illustrating the assembled state of the setting frame of the support frame.

10 is a perspective view showing the support frame of the XY axis movement adjusting means of the present invention omitted.

11 is an exploded perspective view of the elbow opening and closing means of the present invention.

Figure 12 is an exploded perspective view of the elbow restraint portion of the elbow opening and closing means of the present invention.

Figure 13 is a side view illustrating the installation of the present invention, a state diagram before the elbow opening and closing means is assembled in a state that the xy axis movement adjusting means is mounted on the transformer.

Figure 14 is a perspective view of the elbow restraint portion of the elbow opening and closing means of the present invention clamping and separating the elbow connection member.

15 is a schematic diagram illustrating a connection process to a cable junction, an insulation plug, or a bushing insert installed in a transformer in a state in which an elbow connection member is separated by an elbow opening and closing means of the present invention.

Figure 16 is an exploded perspective view of the assembly plate consisting of a position sensor and a reflecting plate applied to the present invention.

Figure 17 is a perspective view of the operation of the assembly plate is composed of a reflecting plate applied to the present invention.

18 is a partially exploded perspective view of a coordinate movement control means that is a component of the present invention.

19 and 20 is a state diagram of the elbow opening and closing means which is a component of the present invention seated on the coordinate movement control means for movement and storage.

Figure 21 is a state diagram XY axis movement adjustment means of the component of the present invention seated on the support frame storage / transport means for movement and storage.

DESCRIPTION OF REFERENCE NUMERALS

100: XY axis movement adjusting means 110: support frame

111: setting frame 113: clamping cylinder

120: Y-axis guide means 121: guide frame

130: X axis moving plate 140: Y axis driving means

200: elbow opening and closing means 210: elbow restraint

220: restraining part driving means 217: position sensor

218: reflecting plate 219: building plate

300: coordinate movement control means 310: pedestal

330: control panel 400: support frame storage / transportation means

430: toggle clamp PLC: programmable logic controller

Claims (11)

It is constructed of a plurality of left and right and upper frames on the lower frame, the support frame having a width across the extra high pressure side (primary side) of the transformer, built in a horizontal direction between the left and right frames of the support frame to guide the Y-axis movement Guide means, an X-axis moving plate assembled to move in the X-axis, the Y-axis driving means is provided on the upper frame and the left and right frames of the support frame to provide the Y-axis movement of the guide means, the upper portion of the support frame XY axis movement adjusting means constructed on a frame and configured with a programmable logic controller for controlling the XY axis movement of the X axis moving plate and the guide means; And an elbow restrainer for assembling and removing the elbow connector to be detached / connected to the X-axis moving plate, a restraining part driving means for driving the forward and backward movement of the elbow restraint, and a position sensor provided in the elbow restraint. Elbow opening and closing means; A reflector plate assembled with a detachable material on a connection object of a cable junction or an insulation plug temporarily installed in a transformer corresponding to the position sensor or a bushing insert of the transformer; And a coordinate movement control means electrically connected to the programmable logic controller and the position sensor to control the XY axis movement control of the X axis movement plate and the guide means, the elbow restraint clamp of the elbow opening and closing means, and the forward and backward movement control. Elbow connection material live switchgear, characterized in that configured. The method of claim 1, The elbow opening and closing means connects the cable junction or the insulation plug or the bushing insert in a forward motion by the position sensor of the elbow restraint detecting the position of the reflector mounted on the cable junction or the insulation plug or the bushing insert of the transformer. An elbow connecting member live switchgear, characterized in that an accurate connection operation of a probe bar of an elbow connecting material lively separated from a target connecting conductor is performed. The method according to claim 1 or 2, The position sensor irradiates light to the reflector at a predetermined distance to set a connection point by detecting the light reflected by the reflector and to separate the elbow connecting member separated by the elbow restraint forward control from the cable junction or insulation plug or bushing. An elbow connecting member live opening and closing device, characterized in that a connection operation is performed on a connection object of an insert. The method of claim 3, The position sensor and the reflecting plate are each composed of a pair, and the pair of reflecting plates are formed on the assembly plate of the detachable material to be connected to the cable junction or the insulation plug or the bushing insert, and set to the connection object if necessary. Elbow connection member live switchgear characterized in that it can be. The method of claim 3,  Elbow connection member live opening and closing device characterized in that the forward movement of the elbow restraint portion is set by the simultaneous position detection of the pair of reflecting plate in the range of the position sensor 300mm. The method of claim 4, wherein The assembly plate is an elbow connecting member live line, characterized in that consisting of a left and right separating plate which is opened and closed around the hinge of one side, a pair of the reflecting plate is assembled to each of the left and right separating plate, and a lock for locking the left and right separation plate Switchgear. The method of claim 1, The support frame of the XY axis movement adjusting means has a pair of engaging pieces that are engaged with the upper door frame of the transformer is built and can be used to vary depending on the size of the transformer's enclosure by a setting frame that is variable and set vertically to the upper left and right frames. Elbow connection material live switchgear characterized in that there is. The method of claim 7, wherein The setting frame is an elbow connection member live opening and closing device characterized in that the variable setting of the setting plate on both sides of the support frame and the setting hole processed in the left and right frame to vary the height of the locking piece. The method of claim 1, The XY axis movement adjusting means is provided on the lower frame of the support frame and clamps the lower frame of the transformer by forward and backward control or the left and right clamping cylinders which bind the support frame to the transformer door frame or release the binding by releasing the clamping. Elbow connection member live switchgear characterized in that the configuration. The method of claim 1, The XY axis movement adjusting means further includes a support frame storage / transport means for storage and transportation, wherein the storage / transport means includes a storage table on which the support frame is seated, a moving wheel providing movement of the storage table, and Elbow connection member live opening and closing device, characterized in that composed of a pair of toggle clamps are coupled to both sides of the storage and clamped to bind both sides of the lower frame of the support frame. The method of claim 1, The coordinate movement control means, It includes a general operation panel electrically connected to the programmable logic controller, the XY axis movement adjusting means and the elbow opening and closing means and a connecting cable, A movable wheel assembled to a lower part and the restraint driving means seated thereon; Positioning the operation panel to a certain height on the top of the pedestal, and composed of an upper and lower support that is folded on the hinge of one side, driving the restraining portion to the pedestal while the upper support assembled with the operation panel is folded back by the hinge Elbow connection member live switchgear, characterized in that configured to be seated.

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