JP2013247808A - Connection mechanism for secondary-side of transformer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection mechanism for a secondary side of a transformer which permits easy separation of an apparatus connected and easy connection of a mobile apparatus.SOLUTION: A connection mechanism for a secondary side of a transformer includes: a secondary side conductor connected to the transformer; a power distribution side conductor connected to a power distribution facility; a conductor for an apparatus configured to be connected to an external apparatus instead of the transformer or the power distribution facility; and a connection body detachably connected to any two of the secondary side conductor, the power distribution side conductor and the conductor for the apparatus in order to electrically connect the two conductors to each other.

Description

  The present invention relates to a connection mechanism on the secondary side of a transformer.

  Conventionally, a transformer is disposed between a primary side (for example, an extra-high voltage side) and a secondary side (for example, a high-voltage side) so that AC power on the primary side (extra-high voltage) is supplied to the secondary side (high-voltage). Have been replaced. And in the connection mechanism of the secondary side of a transformer, the distribution equipment accommodated in the distribution box is connected to the transformer via the conductor and the power distribution cable. The conductor is accommodated in a duct attached to the transformer. The power distribution cable is connected to the conductor in the duct, and is connected to the power distribution facility from the duct through the ground (for example, Patent Document 1).

JP 2004-221333 A

  By the way, when the inspection, replacement, or failure of the transformer, the distribution facility, or the distribution cable occurs, it is necessary to disconnect the corresponding device from the connection mechanism on the secondary side of the transformer. At this time, a movable external device (moving device) loaded on a vehicle such as a truck or a trailer is connected to the connection mechanism on the secondary side of the transformer as an alternative to the disconnected device.

  In the connection mechanism such as Patent Document 1, since the conductor and the wiring cable from the transformer to the distribution facility are arranged in the duct or in the ground, the device is disconnected from the connection mechanism on the secondary side of the transformer. Was not easy in structure. In addition, it is necessary to connect the moving cable extending from the external device to the connection mechanism on the secondary side of the transformer, but the connection mechanism on the secondary side of the transformer is a structure that can easily connect the moving cable. It wasn't.

  In view of the circumstances, it is an object of the present invention to provide a connection mechanism on the secondary side of a transformer that can easily disconnect a connected device and can easily connect a mobile device.

  The secondary side connection mechanism of the transformer according to the present invention connects a secondary side conductor connected to the transformer, a distribution side conductor connected to the distribution facility, and an external device connection in place of the transformer or the distribution facility. Characterized in that it comprises a device conductor for switching, a secondary conductor, a distribution conductor, and a connection body for switching between two conductors to electrically connect any two conductors. To do.

  According to such a configuration, the connection body is electrically connected to the secondary conductor and the distribution conductor during normal times (when there is no abnormality or inspection in all of the transformer, distribution facility, and distribution cable). . Thereby, a connection body lets the electric power transformed by the transformer pass from a secondary side conductor to a power distribution side conductor.

  When the transformer is disconnected from the connection mechanism on the secondary side of the transformer in normal times, the connection body is disconnected from the secondary side conductor and the distribution side conductor, and switched to the equipment conductor and the distribution side conductor. Connected. The device conductor is connected to the connection body and is also connected to a moving transformer that is an external device. Thereby, a connection body lets the electric power transformed with the transformer for movement pass from a conductor for apparatus to a power distribution side conductor. Therefore, even when a failure occurs in the transformer, the time required for route switching and accident removal can be shortened.

  When the distribution equipment is disconnected from the secondary side of the transformer during normal operation, the connection body is disconnected from the secondary conductor and the distribution equipment side conductor and switched to the equipment conductor and the secondary conductor. Connected to. The device conductor is connected to the connection body and is also connected to a moving power distribution facility that is an external device. Thereby, a connection body lets the electric power transformed with the transformer pass from the secondary side conductor to the conductor for apparatuses. Therefore, even when a failure occurs in the power distribution facility, the time required for route switching and accident removal can be shortened.

  Further, in the connection mechanism on the secondary side of the transformer according to the present invention, the connection body is formed integrally with a rigid body and is connected to one conductor and a long first connection portion, and the other one conductor. An elongated second connection portion connected to the first connection portion, and a position of one conductor connected to the first connection portion and a position of one other conductor connected to the second end portion Accordingly, it may be formed in a plurality of different shapes so as to be interchangeable.

  According to such a configuration, the connection body is integrally formed of a rigid body, the first connection portion is connected to one conductor, and the second connection portion is connected to the other one conductor. Thereby, the connection body can fix the relationship of the connection position of one conductor and another one conductor to the shape of a connection body. In addition, when switching the conductor to be connected, after selecting a connection body having a shape suitable for the position of each of the two conductors to be connected, the connection is simply performed by replacing the connection pair currently connected to the conductor with the selected connection body. The conductor to be switched can be switched. Thereby, the work of disconnecting and connecting the devices can be facilitated.

  Moreover, in the secondary side connection mechanism of the transformer according to the present invention, the connection body includes a first connection portion connected to any one of the secondary side conductor, the distribution side conductor, and the equipment conductor; The second connecting portion is movable with respect to the first connecting portion so that the second connecting portion connected to the other one conductor and the respective connecting destination conductors of the first connecting portion and the second connecting portion can be selected. You may have a connection part connected freely.

  According to this structure, a connection part can selectively connect two conductors by moving the other connection part with respect to one connection part. Thereby, two conductors of three conductors can be selectively connected using one connection body, and the work of disconnection and connection of equipment can be facilitated.

  Further, in the secondary side connection mechanism of the transformer according to the present invention, the transformer further includes a cylindrical duct that accommodates the secondary conductor, the distribution side conductor, and the equipment conductor, and the equipment conductor from the outside by the external equipment. There may be an opening that allows access to the.

  According to such a configuration, since the external device can access the connection portion from the opening provided in the duct to the external device of the device conductor, the external device can be easily connected to the connection conductor. Thereby, the time which connects an external apparatus to the connection mechanism of the secondary side of a transformer can be shortened.

  As described above, according to the connection mechanism on the secondary side of the transformer according to the present invention, it is possible to easily disconnect connected devices and to easily connect external devices.

The systematic conceptual diagram of the normal substation equipment which concerns on one Embodiment of this invention is shown. FIG. 2 (a) shows a front sectional view of the normal duct, and FIG. 2 (b) shows a side sectional view of the normal duct according to the embodiment. . The perspective view of the connection body in the normal time which concerns on the embodiment is shown. The system conceptual diagram which disconnected the transformer which concerns on the same embodiment is shown. The sectional view of the duct which cut off the transformer concerning the embodiment is shown, Drawing 5 (a) shows the front sectional view of the duct which cut off the transformer, and Drawing 5 (b) shows the duct which cut off the transformer Side surface sectional drawing of is shown. The system conceptual diagram which disconnected the power distribution equipment which concerns on the embodiment is shown. Sectional drawing of the duct which cut | disconnected the power distribution equipment which concerns on the embodiment is shown, Fig.7 (a) shows front sectional drawing of the duct which cut | disconnected the power distribution equipment, FIG.7 (b) shows the duct which cut | disconnected the power distribution equipment Side surface sectional drawing of is shown. The perspective view of the modification of the connection body based on the embodiment is shown.

  Hereinafter, an embodiment of a connection mechanism on the secondary side of a transformer according to the present invention will be described with reference to FIGS.

  First, prior to describing each configuration of the connection mechanism on the secondary side of the transformer according to the present embodiment, the overall configuration related to the transformer system will be described.

  As shown in FIG. 1, the primary side circuit breaker (sub circuit breaker) 2 of the transformer 3 is connected to the primary side (extra high voltage side) of the transformer 3. A power receiving circuit breaker (main circuit breaker) 1 is connected to the primary side of the primary circuit breaker 2.

  On the secondary side (high voltage side) of the transformer 3, a connection mechanism on the secondary side of the transformer 3 according to the present invention is provided. The distribution facility 8 is connected to the secondary side connection mechanism of the transformer 3 through the distribution cable 7. The power distribution cable 7 is connected to the power distribution facility 8 from the secondary side connection mechanism of the transformer 3 through the ground. The power distribution facility 8 is, for example, a switch gear and is a cubicle in which devices such as a circuit breaker and a protective relay are housed. In such a connection mechanism, the connection mechanism on the secondary side of the transformer 3 according to the present embodiment is further provided between an external device such as a moving transformer or a moving power distribution facility and the transformer 3 or the power distribution facility 8. Can be connected.

  2 (a) and 2 (b), the secondary side connection mechanism of the transformer 3 is connected to the secondary side conductor 4 connected to the secondary side of the transformer 3 and the power distribution facility 8. Distribution side conductor 6 to be connected, apparatus conductor 9 provided to connect external devices such as transfer transformer 30 and transfer distribution facility 40, secondary side conductor 4, distribution side conductor 6, and external device A connection body 5 that electrically connects any two of the connection conductors 9, and a secondary side conductor 4, a distribution side conductor 6, a device conductor 9, and a duct 10 that houses the connection body 5. Prepare.

  For example, the secondary conductor 4 is formed in a long shape by a lead wire drawn out from a metal plate or the transformer 3. Three secondary conductors 4 are provided in parallel for each phase of the three-phase AC. And each of the secondary side conductor 4 is arrange | positioned in the position which one end was connected to the transformer 3 and the other end extended in the horizontal direction from the one end. Each of the other ends of the secondary side conductor 4 is disposed at a position where it can be connected to the connection body 5. Each of the other ends of the secondary side conductor 4 has a configuration that can be coupled to the connection body 5, for example, a fastening hole (not shown).

  The power distribution side conductor 6 is formed in a long shape with a metal plate, for example. Three distribution-side conductors 6 are provided corresponding to each of the three secondary-side conductors 4. Each of the distribution-side conductors 6 is disposed at a position where one end can be connected to the connection body 5 and the other end is suspended from the one end. Each of the one ends of the distribution-side conductor 6 has a configuration that can be coupled to the connection body 5, for example, a fastening hole (not shown) using bolts and nuts.

  The device conductor 9 is formed by bending a metal plate, for example. Three device conductors 9 are provided corresponding to the three secondary-side conductors 4 and the three distribution-side conductors 6. Each of the device conductors 9 is arranged at a position where one end can be connected to the connection body 5, bent at a position extending in the same direction as the extending direction of the secondary conductor 4, and bent at the other end. It is arranged at a position depending on the position. Each of the ends of the device conductor 9 has a configuration that can be coupled to the connection body 5, for example, a fastening hole (not shown) using a bolt and a nut.

  As shown in FIG. 3, the connection body 5 is a rigid body and is integrally formed, for example, a metal plate that is a conductor. One connection body 5 is provided for each phase of the three-phase alternating current, and three connection bodies 5 are provided for each pair of the secondary-side conductor 4, the distribution-side conductor 6, and the device conductor 9. The connection body 5 has a long first connection portion 53 connected to one of the three conductors and a long second connection connected to one of the other two conductors. Part 54. The connection body 5 is connected to one conductor at one end of the first connection portion 53, and connected to one other conductor at one end of the second connection portion 54. The connecting body 5 is integrally formed by being connected at the other end of the first connecting portion 53 and the other end of the second connecting portion 54. The connection body 5 is formed in a plurality of different shapes based on the arrangement positions of the two conductors connected to one end of the first connection portion 53 and one end of the second connection portion 54.

  For example, when one end of the first connection portion 53 is connected to the secondary conductor 4 and one end of the second connection portion 54 is connected to the power distribution side conductor 6, the connection body 5 is in the longitudinal direction of the first connection portion 53. And the longitudinal direction of the second connecting portion 54 are formed in an L shape that connects at right angles at the other ends. Moreover, when the 1st connection part 53 is connected to the secondary side conductor 4, and the 2nd connection part 54 is connected to the conductor 9 for apparatuses, the connection body 5 is the 2nd connection and the longitudinal direction of the 1st connection part 53. It is formed in an I shape that connects the longitudinal direction of the portion 54 in the same direction at each other end. In addition, the connection body 5 can be made into various shapes according to the arrangement position of the secondary side conductor 4, the power distribution side conductor 6, and the device conductor 9.

  The first connection portion 53 is connected at one end by being fastened to one conductor using the fastening means 51. The second connecting portion 54 is connected at one end by being fastened to the other one conductor using the fastening means 52. Thereby, the connection body 5 is connected to two conductors in a state in which a sufficient distance from the duct 10 is ensured. Moreover, the connection body 5 can connect two conductors, without changing the position of two conductors. That is, since the connection body 5 can connect the two conductors without having to move the two conductors in the duct 10, the insulation distance between the two conductors and the duct 10 can be sufficiently secured.

  In the present embodiment, the connection body 5 is formed in an L shape and connects the secondary side conductor 4 and the power distribution side conductor 6. The first connection portion 53 is connected to the other end of the secondary side conductor 4, and the second connection portion 54 is connected to one end of the power distribution side conductor 6.

  The duct 10 is formed in a cylindrical shape, and is configured to accommodate the secondary side conductor 4, the distribution side conductor 6, and the device conductor 9. The duct 10 includes a secondary-side conductor accommodating portion 11 that extends in the horizontal direction from the secondary side of the transformer 3, and a distribution-side conductor that is connected to the secondary-side conductor accommodating portion 11 and hangs down from the position of the connection body 5. It has the accommodating part 12, the conductor conductor accommodating part 13 for apparatuses connected in the extension direction of the secondary side conductor accommodating part 11, and the insulator 14 which ensures the insulation of each conductor.

  The secondary side conductor accommodating part 11 accommodates the secondary side conductor 4 inside. The secondary side conductor accommodating part 11 is formed in square tube shape, for example. The secondary-side conductor accommodating portion 11 accommodates the secondary-side conductor 4 with its longitudinal direction aligned with the longitudinal direction of the secondary-side conductor 4. Moreover, the secondary side conductor accommodating part 11 accommodates the connection body 5 in the edge part of the extension direction. More preferably, the secondary conductor housing portion 11 has a window portion (not shown) that can be opened when the connecting body 5 is replaced at a part of the position where the connecting body 5 is housed. And the secondary side conductor accommodating part 11 is connected to each accommodating part in the connection position with the power distribution side conductor accommodating part 12 and the conductor accommodating part 13 for apparatuses.

  The distribution side conductor accommodating portion 12 accommodates the distribution side conductor 6 therein. The distribution-side conductor accommodating portion 12 is formed in, for example, a rectangular tube shape, and accommodates the distribution-side conductor 6 with the extending direction thereof aligned with the extending direction of the distribution-side conductor 6. Further, the distribution-side conductor housing portion 12 is connected to a hole (not shown) provided in the ground at an end opposite to the end connected to the secondary-side conductor housing portion 11. The distribution side conductor accommodating portion 12 also accommodates a connection portion of the distribution cable 7 that is passed through the hole to the distribution side conductor 6.

  The device conductor accommodating portion 13 accommodates the device conductor 9 therein. The device conductor accommodating portion 13 is formed in, for example, a rectangular tube shape, and has an opening 15 at a connection position with the secondary side conductor accommodating portion 11 and a surface facing the ground. The device conductor accommodating portion 13 accommodates one end portion of the device conductor 9 at a position where the device conductor 9 is connected to the connection body 5, and the other end portion of the device conductor 9 can be accessed from the opening 15 on the surface facing the ground. Store in the correct position.

  The insulator 14 is provided between each of the secondary side conductor accommodating portion 11, the distribution side conductor accommodating portion 12, and the device conductor accommodating portion 13, and the secondary side conductor 4, the distribution side conductor 6, and the device conductor 9. It is provided to ensure insulation. A plurality of insulators 14 are provided in the duct 10 and are locked to the inner surface of the duct 10. In addition, each of the insulators 14 locks any one of the secondary-side conductor 4, the power-distribution-side conductor 6, and the equipment conductor 9 in a state where insulation from the duct 10 is ensured. For example, the insulators 14 </ b> A, 14 </ b> A... Hook the secondary side conductor 4 in a state in which insulation from the secondary side conductor housing portion 11 is ensured. The insulator 14B locks the distribution-side conductor 6 in a state in which insulation from the distribution-side conductor housing portion 12 is ensured. The insulator 14C locks the device conductor 9 in a state in which insulation with the device conductor housing portion 13 is ensured.

  As shown in FIG. 4, when the transformer 3 is disconnected from the system due to the occurrence of an accident or inspection in the transformer 3, the moving transformer 30 is connected between the primary circuit breaker 2 and the distribution facility 8. . Specifically, the moving transformer 30 is connected to the primary circuit breaker 2 by a primary side moving cable 31 and is connected to the device conductor 9 by a secondary side moving cable 32. The connection body 5 is connected to the power distribution side conductor 6 and the device conductor 9.

  As shown in FIGS. 5A and 5B, the connection body 5 is L-shaped. The first connection portion 53 is connected to the device conductor 9. The second connection portion 54 is connected to the power distribution side conductor 6. Thereby, the connection body 5 connects between the power distribution side conductor 6 and the device conductor 9.

  The secondary-side moving cable 32 is connected to the device conductor 9 from the opening of the device conductor housing portion 13. As a result, the transformer 3 is disconnected from the system, and the moving transformer 30 replaces the function of the transformer 3.

  As shown in FIG. 6, when the distribution facility 8 is disconnected from the system due to the occurrence of an accident in the distribution facility 8 or inspection, or when the distribution cable 7 is disconnected, the moving distribution facility 40 is connected to the transformer 3. Is done. Specifically, the power distribution facility 40 for movement is connected to the conductor 9 for equipment by the primary side moving cable 41. The connection body 5 is connected to the secondary conductor 4 and the device conductor 9. When the power distribution cable 7 is disconnected, the power distribution facility 8 and the device conductor 9 may be connected by a cable as shown by a dotted line in FIG.

  As shown in FIG. 7A and FIG. 7B, an I-shaped connection body 5 is used. The first connection portion 53 is connected to the secondary conductor 4. The second connection portion 54 is connected to the device conductor 9. Thereby, the connection body 5 connects between the secondary side conductor 4 and the conductor 9 for apparatuses.

  The primary side moving cable 41 is connected to the device conductor 9 from the opening of the device conductor housing portion 13. Thereby, the power distribution equipment 8 and the power distribution cable 7 are disconnected from the system, and the power distribution equipment 40 for movement substitutes for the function of the power distribution equipment 8.

  The configuration of the secondary side connection mechanism of the transformer 3 according to the present embodiment is as described above. Next, the operation of the secondary side connection mechanism of the transformer 3 according to the present embodiment will be described.

  Normally, as shown in FIG. 1, the secondary side connection mechanism of the transformer 3 connects between the transformer 3 and the power distribution facility 8. At this time, the 1st connection part 53 is connected to the secondary side conductor 4 using the fastening means 51, as shown to Fig.2 (a) and FIG.2 (b). The second connection portion 54 is connected to the distribution-side conductor 6 using the fastening means 52. Thereby, the connection body 5 electrically connects between the secondary side conductor 4 and the power distribution side conductor 6. Therefore, the AC power exchanged by the transformer 3 is distributed to the distribution facility 8.

  When the transformer 3 is disconnected from the system due to an accident or inspection of the transformer 3, as shown in FIG. 4, FIG. 5 (a) and FIG. Is connected to the connection mechanism on the secondary side of the transformer 3. The connection body 5 is used by changing the connection destination in the same shape as in the normal state. More specifically, the L-shaped connection body 5 is released from the connection with the secondary side conductor 4 and the power distribution side conductor 6. The first connection portion 53 is released from the connection with the secondary side conductor 4 and is connected to the device conductor 9. The second connection portion 54 is again connected to the power distribution side conductor 6. Thereby, the connection body 5 connects between the apparatus conductor 9 and the power distribution side conductor 6.

  Further, the secondary side moving cable 32 accessed from the opening of the duct 10 is connected to the connection end of the device conductor 9. The secondary moving cable 32 is connected to the moving transformer 30, and the primary moving cable 31 is connected to the primary circuit breaker 2. Thereby, the AC power exchanged by the transfer transformer 30 is distributed to the power distribution facility 8.

  On the other hand, when the power distribution facility 8 and the power distribution cable 7 are disconnected due to an accident or inspection of the power distribution facility 8 or a disconnection of the power distribution cable 7, the power distribution facility 8 is shown in FIGS. Instead, the moving power distribution facility 40 is connected to the connection mechanism on the secondary side of the transformer 3. The L-shaped connection body 5 is released from the connection of the secondary side conductor 4 and the power distribution side conductor 6, and the plate-shaped connection body 5 is used. The first connection portion 53 is connected to the secondary conductor 4, and the second connection portion 54 is connected to the device conductor 9. Thereby, the connection body 5 connects between the secondary side conductor 4 and the conductor 9 for apparatuses.

  Further, the primary side moving cable 41 accessed from the opening of the duct 10 is connected to the connection end of the device conductor 9. The primary side moving cable 41 is connected to the moving power distribution facility 40. As a result, the AC power exchanged by the transformer 3 is distributed to the power distribution facility 40 for movement.

  From the above, the secondary side connection mechanism of the transformer 3 according to the present embodiment includes the secondary side conductor 4 connected to the transformer 3, the distribution side conductor 6 connected to the power distribution facility 8, and the transformer 3. Or the conductor 9 for apparatus for connecting the external apparatus which replaces the power distribution equipment 8, the secondary side conductor 4, the power distribution side conductor 6, and the conductor 9 for apparatus are switched, and any two conductors are switched. And a coupling portion 5 to be electrically connected. Therefore, it is possible to disconnect the transformer 3, the distribution cable 7, or the distribution facility 8 from the system only by exchanging the connection body 5 or changing the position, and easily connect the conductors used for connection. Can do. Further, since the connection side end of the device conductor 9 is provided at a position accessible from the opening provided in the duct 10, external devices such as the moving transformer 30 and the moving power distribution facility 40 are easily connected. be able to. Therefore, from disconnecting the device to connecting the moving device and returning the system can be performed in a short time.

  Further, only the device to be disconnected can be disconnected, and other devices can be used as they are, so that the recovery can be performed with only the minimum recovery device, and the cost until the recovery can be reduced.

  Further, in the secondary side connection mechanism of the transformer 3 according to the present embodiment, the device conductor housing portion 13 includes an opening 15 for connecting an external device to the device conductor 9. This makes it easy for an external device to access the device conductor 9 using the opening 15. That is, the external device is easily connected to the device conductor 9 using the opening 15. Therefore, it is possible to further shorten the time until recovery and further reduce the cost until recovery.

  The connection mechanism on the secondary side of the transformer 3 according to the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention. is there. Moreover, it is needless to say that configurations, methods, and the like according to various modifications described below may be arbitrarily selected and employed in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the connection mechanism on the secondary side of the transformer 3 according to this embodiment, as shown in FIG. 8, the connection body 5 includes the first connection portion 53 and the second connection portion 54 as separate bodies. You may have the connection part 55 which connects the other end part of the 1st connection part 53 and the 2nd connection part 54 mutually rotatably. In a state where the first connecting portion 53 is connected to one conductor, the second connecting portion 54 is rotated around the connecting portion 55 and connected to the other one conductor. Thereby, two conductors can be connected by the one connection body 5, and cost can be reduced more.

  Further, in the secondary side connection mechanism of the transformer 3 according to the above embodiment, the fastening means 51 and 52 include a combination of bolts and nuts, a countersunk screw, the connection body 5, the secondary side conductor 4, and the power distribution. Any configuration may be used as long as the side conductor 6 or the device conductor 9 is fixed to each other. More specifically, the fastening means 51 and 52 fasten the position of the fastened conductor in the duct 10 by fastening the connecting body 5 and the secondary side conductor 4, the distribution side conductor 6 or the device conductor 9. Any configuration may be used as long as it is defined and can ensure insulation of the fastened conductor.

  In addition, in the secondary side connection mechanism of the transformer 3 according to the present embodiment, the device conductor housing portion 13 is provided in the extending direction of the secondary side conductor housing portion 11. It may be provided at any position as long as the secondary side moving cable 32 or the primary side moving cable 41 can be easily connected, such as the upper surface of the portion 11. In addition, a window releasable when the secondary-side moving cable 32 or the primary-side moving cable 41 is connected to the connection-side end of the device conductor 9 in the opening 15 to the outside of the device conductor housing portion 13. A portion (not shown) may be provided.

DESCRIPTION OF SYMBOLS 1 Power receiving breaker 2 Primary side circuit breaker 3 Transformer 4 Secondary side conductor 5 Connection body 6 Distribution side conductor 7 Distribution cable 8 Distribution equipment 9 Equipment conductor 10 Duct 11 Secondary side conductor accommodating part 12 Distribution side conductor accommodating part DESCRIPTION OF SYMBOLS 13 Device conductor accommodating part 14 Insulator 15 Opening 30 Transfer transformer 31 Primary side moving cable 32 Secondary side moving cable 40 Moving power distribution equipment 41 Primary side moving cables 51 and 52 Fastening means 53 1st connection part 54 2nd connection part 55 Connection part

Claims (4)

  Secondary conductors connected to transformers, distribution conductors connected to distribution facilities, equipment conductors for connecting external devices connected to transformers or distribution facilities, secondary conductors, distribution side A connection mechanism for a secondary side of a transformer, comprising: a conductor and a connection body that switches a conductor to be connected among device conductors and electrically connects any two conductors.   The connection body is formed of a rigid body and has a long first connection portion connected to one conductor, and a long second connection portion connected to another conductor, It is formed to be exchangeable in a plurality of different shapes according to the position of one conductor connected to the first connection part and the position of another conductor connected to the second end part. The connection mechanism on the secondary side of the transformer according to claim 1.   The connection body includes a first connection portion connected to any one of the secondary side conductor, the distribution side conductor, and the device conductor, a second connection portion connected to the other conductor, 2. A connecting portion for movably connecting the second connecting portion to the first connecting portion so as to select a connection destination conductor of each of the first connecting portion and the second connecting portion. Connection mechanism on the secondary side of the transformer described in 1.   The apparatus further comprises a cylindrical duct that accommodates the secondary side conductor, the distribution side conductor, and the equipment conductor, and has an opening that allows external equipment to access the equipment conductor from the outside. The connection mechanism on the secondary side of the transformer according to any one of claims 1 to 3.

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