KR101926754B1 - Underground cable connector used in a switch box for extra high voltage - Google Patents

Abstract

The present invention relates to an underground wire connector of a special high voltage distribution box, capable of automatically preventing short or a fire from being caused when a connection part between an underground wire and a distributed line connected with each other through the connector in the special high voltage distribution box are deteriorated. In addition, in the process of automatically preventing the short or the fire, the electrical connection between a relevant underground wire and a relevant distribution line is not disconnected, thereby preventing relevant consumers from suffering blackout. According to the present invention, the underground wire connector of the special high voltage distribution box includes a housing, an underground wire connection part, a distribution line connection part, a first terminal rod, a second terminal rod, a terminal rod driving unit, a bypass resistance unit, a thermal imaging camera, a control unit, and a communication module. The control unit determines whether there is overheating based on thermal image data of the distribution line connection part transmitted through the thermal imaging camera. The control unit controls the operation of a terminal part driving unit while transmitting an accident risk signal to a situation room through the communication module to notify a relevant fact.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an underground cable connector for an extra high voltage distribution box,

The present invention relates to a power distributing system for automatically suppressing overload and overheating at a connecting portion between an underground wire and a power line connected through a connector in a high-voltage power distribution box so as not to proceed from a short circuit or fire, To a ground wire connector of a high-voltage distribution box that does not block the electrical connection between power distribution lines and thus does not lead to a power failure situation in all the users.

Generally, the extra high voltage power produced by the supplier is supplied to each customer through the working wire or underground wire.

In other words, electricity used in homes, offices or large-scale factories is supplied mainly to substations equipped in each region. These substations are installed for the purpose of modifying voltage and current and distributing electric power.

On the other hand, since the above-mentioned machined wires are installed on the ground, it is not easy to install them in an urban area where many buildings are arranged. Therefore, in the urban area, an underground cable system using an underground piping is commonly used.

In this brief description of the underground wire system, electric power is supplied from the substation to the distribution box in the area, and power is supplied from each distribution box to the distribution board according to the user in the area. And the connection between the underground cable and the power distribution line around the power distribution box is usually done through the connector.

Here, the connector generates a lot of heat by functioning to supply extra high-voltage electricity through the underground wire to the distribution line of the distribution box. Especially, in the climate conditions where the heat of the heat lasts for a certain period like the hot weather of the Republic of Korea, not only the temperature of the ground and the ground rise, but also the electricity consumption of the users is increased so that the overload and overheating phenomenon Which may cause a short circuit or a subsequent electric shock or fire.

Therefore, there is a need for a method of automatically preventing the overload and overheating phenomenon of the connection part between the underground cable and the distribution line connected to the connector in the special high-voltage distribution box supplied with special high-voltage electricity of the underground wire to the customers.

Korean Registered Patent No. 10-1247348 (Announcement on Mar. 23, 2013), "Electro-shock prevention type connector for special high-voltage underground transmission and distribution line" Korean Registered Patent No. 10-0882612 (Announcement on Feb. 12, 2009), "Underground Embedded Type Extra High Voltage Distribution Line Connector"

The embodiment of the present invention provides a ground wire connector of a special high-voltage power distribution box that can automatically prevent overload and overheating at a connecting portion between an underground wire and a power line connected through a connector in a special high voltage distribution box through a real-time monitoring function .

In addition, in the embodiment of the present invention, when an overload and an overheating phenomenon occur in a connection portion between an underground wire and a power line connected through a connector in a special high-voltage power distribution box, the overload and overheat phenomenon is automatically suppressed from being short- And the underground cable connector of the special high-voltage distribution box which does not cut off the electrical connection between the power distribution lines and does not lead to the power failure situation of all the users.

The ground wire connector of the special high-voltage power distribution box according to the embodiment of the present invention includes an enclosure 410 having an upper end enclosing an opening 411 formed on the lower surface of the enclosure 410 of the special- A pair of first insertion holes 11 are formed on one side surface of the first insertion hole 11 so as to be spaced apart from each other in the vertical direction and a second insertion hole 11 for insertion of the ground wire 200 A guide slit 13 is formed along a vertical direction on an inner surface of a side surface disposed at a right angle with the side surface of the first insertion hole 11, A supporting block 14 protruding from the inner surface of the formed side surface and formed on one surface of the protruding direction so as to be spaced apart from each other in a vertical direction by a pair of sliding grooves 14a connected in series with the first insertion holes 12, An insulating housing 10 including the housing 10, And the ground wires 200 inserted into the housing 10 through the second insertion holes 12 are electrically and mechanically coupled to the ground wires 200 and the ground wires 200, A first main connection terminal 21 for electrically connecting the power distribution line 300 of the special high voltage distribution box 400 and a first bypass connection terminal 22 electrically connected to the first main connection terminal 21, An insulated underground wire connection portion 20 including a first terminal passage hole 23 formed in the support block 14 and connected to a lower sliding groove 14a among the sliding grooves 14a of the support block 14, And a guide protrusion 31 slidably inserted into the slit 13 and slidably coupled to the side surface of the housing 10 through the guide protrusion 31 and the guide slit 13 , The power distribution line (300) is electrically and mechanically coupled, A second main connection terminal 32 for supplying electricity supplied from the first main connection terminal 21 of the connection unit 20 to the power distribution line 300 and a second main connection terminal 32 electrically connected to the second main connection terminal 32 Is connected to the underground wire connecting portion (20) via downward sliding including the second bypass connecting end (33), and the connection of the second main connecting end (32) to the first main connecting end (21) And is disconnected from the underground wire connecting portion 20 through the upward sliding to release the connection of the second main connecting end 32 to the first main connecting end 21. The underground wire connecting portion 20 An insulating power line connecting portion 30 having a second terminal passage hole 34 connected to an upper sliding groove 14a of the sliding grooves 14a of the supporting block 14, And an upper sliding part (14a) of the supporting block (14) And the first insertion hole 11 and the second terminal passage hole 23 on the upper side of the first insertion hole 11 and the second terminal passage hole 23 are connected to each other in a slidable manner The first bypass connection end 33 is slid in a state of being in contact with or disengaged from the second bypass connection end 33 and at the other end drawn out of the housing 10 through the first insertion hole 11 on the upper side, A first conductive terminal block 40 on which the first guide pin 41 is formed and a lower sliding groove 14a of the sliding block 14a of the supporting block 14, The groove 14a and the first insertion hole 11 on the lower side of the first insertion hole 11 and the first terminal passage hole 23 are connected in series to the first bypass connection terminal 22 The first insertion hole 11 can be slid in a contacted or disengaged state, A conductive second terminal rod 50 having a second guide pin 51 functioning as a terminal is formed at one end drawn out of the housing 10 through the first terminal rod 40 and the second terminal rod 50, 50 and an insulating sheet 61 surrounding the first terminal rod 40 or the second terminal rod 50 and an insulating sheet 61 surrounding the first terminal rod 40 or the second terminal rod 50, A rack 62 of an insulator formed on the outer surface of the insulating sheet 61 and a pinion 63 engaged with the rack 62 and a pinion 63 coupled to the drive shaft 64a, A terminal rod driving part 60 including a normal rotation motor 64 installed on a support block 14 of the first terminal rod 10 and providing rotation power to the pinion 63, A first terminal groove 71a and a first pin guide groove 71b are formed in which the first guide pin 41 and the first guide pin 41 are inserted. 1st The second terminal groove 71c and the second pin guide groove 71d are formed so that the contact between the inner surfaces of the guide groove 71b is maintained and the second terminal rod 50 and the second guide pin 51 are inserted The contact between the inner surface of the second guide pin 51 and the inner surface of the second pin guide groove 71d is maintained even when the second terminal rod 50 is slid, A first terminal hole 72a corresponding to the first terminal groove 71a and the first pin guide groove 71b and a first terminal hole 72a corresponding to the first pin guide hole 71b, And the second terminal hole 72c and the second pin guide hole 72d corresponding to the second terminal groove 71c and the second pin guide groove 71d are formed in the state where the rechargeable battery A bypass charging portion 70 disposed around the housing 10 and an insulative cover 72 surrounding the power distribution line connecting portion 30 and the power line connecting portion 300, A thermal imaging camera 80 installed inside the housing 10 for photographing a thermal image of one end of the power distribution line 300 in real time and a thermal imaging camera 80 for detecting the overheat state of one end of the power distribution line connection section 30 and the power distribution line 300 When determining that the thermal image data to be determined and the thermal image data transmitted through the thermal imager 80 are a thermal image at a higher temperature than the predetermined reference thermal image data, the first terminal rod 40 The terminal rod driving section 60 is operated so that the terminal rod 50 is slid to be connected to the second bypass connection terminal 33 and slid so that the second terminal rod 50 is connected to the first bypass connection terminal 22 A control unit (90) for outputting an accident risk signal for notifying the fact to the fact room, and a control unit (90) for receiving the accident risk signal outputted from the control unit (90) And a communication module 100 installed in the housing 10 to transmit the wireless communication module 420 installed in the extra-high voltage distribution box 400 for communication.

According to the embodiment of the present invention, the overload and overheating phenomenon of the connection portion between the underground wire and the power line connected through the connector in the special high voltage distribution box can be automatically prevented by the real time monitoring function.

In addition, in case of overload and overheating at the connection point between the underground cable and the power line connected through the connector in the special high-voltage power distribution box, the situation is automatically suppressed so as not to proceed from short circuit or fire, The connection is not blocked so that all of the demanders do not lead to a power outage situation.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a side cross-sectional view illustrating an underground wire connector of an extra high voltage distribution box according to an embodiment of the present invention.
2 is a block diagram illustrating an electrical configuration of a ground wire connector of an extra high voltage distribution box according to an embodiment of the present invention.
And
3 is a view illustrating an operation state of a ground wire connector of a special high-voltage power distribution box according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It is also to be understood that the position or arrangement of the individual components in each described embodiment may be varied without departing from the spirit and scope of the present invention.

The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which the claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

Whenever an element is referred to as " including " an element throughout the description, it is to be understood that the element may include other elements as well, without departing from the other elements unless specifically stated otherwise. In addition, the term " "... Module " or the like means a unit for processing at least one function or operation, which may be implemented in hardware or software, or a combination of hardware and software.

1 to 3, a ground wire connector of an extra high voltage distribution box according to an embodiment of the present invention will be described.

FIG. 1 is a side cross-sectional view illustrating a ground wire connector of an extra high voltage distribution box according to an embodiment of the present invention, and FIG. 2 is a block diagram illustrating an electrical configuration of a ground wire connector of an extra high voltage distribution cabinet according to an embodiment of the present invention. .

The ground wire connector of the special high voltage distribution box according to the embodiment of the present invention includes a housing 10, a ground wire connection portion 20, a distribution line connection portion 30, a first terminal rod 40, A rod 50, a terminal rod driving unit 60, a bypass resistance unit 70, a thermal imaging camera 80, a control unit 90, and a communication module 100.

The housing 10 is formed of an insulating material such that the upper end of the housing 10 surrounds the opening 410 formed in the lower surface of the housing 410 of the special high voltage distribution box 400 and surrounds the housing 410, As shown in FIG. The housing 10 has a pair of first insertion holes 11 formed on one side thereof to be spaced apart from each other along the vertical direction and a second insertion hole 11 for insertion of the underground wire 200 And a guide slit 13 is formed along the vertical direction on the inner surface of one side surface disposed at right angles to the side surface on which the first insertion hole 11 is formed. The housing 10 has a pair of sliding grooves 14a protruding from the inner surface of the side surface on which the guide slit 13 is formed and being connected to the first insertion holes 12 in a line, And a support block 14 that is formed to be spaced apart along the direction.

The ground wire connecting portion 20 is formed of an insulating material and is fixed to the inner surface of the lower surface of the housing 10 and connected to the housing 10 through the second insertion holes 12 of the housing 10. [ The ground wires 200 inserted into the ground wires 200 are electrically and mechanically coupled. The ground wire connection unit 20 includes a first main connection terminal 21 and a first main connection terminal 21 for electrically connecting the ground wires 200 and the power distribution line 300 of the special high voltage distribution box 400 And a first bypass connection terminal 22 electrically connected to the first bypass connection terminal 22. The ground wire connection portion 20 is formed with a first terminal passage hole 23 connected to the lower sliding groove 14a of the sliding block 14a of the support block 14. [

The power distribution line connection portion 30 is formed of an insulating material and has a guide projection 31 slidably inserted into the guide slit 13 of the housing to guide the guide projection 31 and the guide slit 13 And is slidably coupled to the side surface of the housing 10 along the vertical direction. The distribution line connection unit is electrically connected to the distribution line 300 electrically and mechanically and includes a second main connection terminal for supplying electricity supplied from the first main connection terminal 21 of the ground connection unit 20 to the distribution line 300 32 and a second bypass connection terminal 33 electrically connected to the second main connection terminal 32.

Accordingly, the power distribution line connecting portion 30 is coupled to the underground wire connecting portion 20 through downward sliding, and at the same time, the second main connecting end 32 is connected to the first main connecting end 21, The second main connecting end 32 is disconnected from the first main connecting end 21 while being disconnected from the ground wire connecting portion 20. [ The first main connecting end 21 of the underground wire connecting portion 20 and the second main connecting end 32 of the power line connecting portion 30 are electrically connected to each other when the ground wire connecting portion 20 and the power distribution line connecting portion 30 are mechanically engaged Can be variously implemented through various known technologies. Therefore, detailed description and illustration thereof are omitted in the present embodiment.

The distribution line connecting portion 30 is connected to the second terminal passage hole 20a connected to the upper sliding groove 14a of the sliding block 14a of the support block 14, 34 are formed.

The first terminal rod 40 is formed of a conductive material and the first terminal rod 40 is slidably inserted into the upper sliding groove 14a of the sliding block 14a of the supporting block 14. [ The first terminal rod 40 is connected to the first terminal insertion hole 11 and the second terminal insertion hole 11 in the sliding groove 14a and the first insertion hole 11, And is slidable in contact with or disengaged from the second bypass connecting end 33 of the connecting portion 30. [ The first terminal rod 40 is drawn out to the outside of the housing 10 through the first insertion hole 11 on the upper side to form a first guide pin 41 having a terminal function.

The second terminal rod 50 is made of a conductive material and the second terminal rod 50 is slidably inserted into the lower side sliding groove 14a of the sliding grooves 14a of the supporting block 14. [ The second terminal rod 50 is inserted into the sliding groove 14a and the first insertion hole 11 and the first terminal passage hole 23 of the first insertion hole 11, And is slidable in contact with or disengaged from the first bypass connecting end 22 of the wire connecting portion 20. [ The second terminal rod 50 is drawn out to the outside of the housing 10 through the first insertion hole 11 on the lower side and a second guide pin 51 having a terminal function is formed at one end.

The terminal rod driving unit 60 is installed in the first terminal rod 40 and the second terminal rod 50, respectively. The terminal rod driving unit 60 is connected to the first terminal rod 40 or the second terminal rod 50 so that the longitudinal direction of the insulating sheet 61, the first terminal rod 40, The rack 62 of the insulator formed on the outer surface of the insulating sheet 61 and the pinion 63 engaged with the rack 62 and the pinion 63 are engaged with the drive shaft 64a, And a forward and reverse rotation motor (64) provided in the block (14) to provide rotational power to the pinion (63).

The bypass charging part 70 is disposed around the housing 10. The bypass charging part 70 includes a rechargeable battery 71 and a cover 72. [

The rechargeable battery 71 has a first terminal groove 71a and a first pin guide groove 71b into which the first terminal rod 40 and the first guide pin 41 are inserted, The second terminal groove 50 and the second guide pin 51 are inserted into the second terminal groove 50 so that the contact between the inner surfaces of the first guide pin 41 and the first pin guide groove 71b is maintained, 71c and the second pin guide groove 71d are formed so that the contact between the inner surfaces of the second guide pin 51 and the second pin guide groove 71d is maintained even when the second terminal rod 50 is slid, The electrical connection between the terminal rod 40 and the second terminal rod 50 is maintained.

The cover 72 is formed with a first terminal hole 72a and a first pin guide hole 72b corresponding to the first terminal groove 71a and the first pin guide groove 71b of the rechargeable battery 71, The second terminal hole 72c and the second pin guide hole 72d are formed so as to correspond to the second terminal groove 71c and the second pin guide groove 71d of the battery 71, .

The thermal imaging camera 80 is installed in the housing 10 to photograph a thermal image of one end of the power distribution line 300 connected to the power distribution line connection section 30 and the power distribution line connection section 300 in real time.

The control unit 90 sets the reference thermal image data for determining whether the one end of the power distribution line connection unit 30 and the power distribution line 300 is in an overheated state, The first terminal rod 40 is slid so as to be connected to the second bypass connection terminal 33 and the second terminal rod 50 is connected to the second bypass connection terminal 33 when the image data is determined as a thermal image having a temperature higher than the predetermined reference thermal image data. The terminal rod driving section 60 is operated so as to be slid to be connected to the first bypass connecting terminal 22. [ Further, the control unit 90 outputs an accident risk signal for notifying the fact room to the fact room.

The communication module 100 receives the accident risk signal output from the controller 90 and transmits the received accident risk signal to the wireless communication module 420 installed in the special high voltage distribution box 400 for communication with the control room And is installed inside the housing 10 to be transferred.

An operation state of the underground wire connector of the extra-high voltage distribution box according to the embodiment of the present invention having the above-described configuration will be described with reference to FIG.

The control unit 90 determines that the first terminal rod 40 is connected to the power line connecting part (not shown in the drawing) And the second terminal connecting rod 50 is connected to the first bypass connecting terminal 22 of the ground wire connecting portion 20. The second terminal connecting terminal 33 of the ground wire connecting portion 20 is connected to the second terminal connecting terminal 33 of the ground wire connecting portion 20, A part of the electricity supplied through the underground wire connecting part 20 flows into the bypass recharging part 70 and is charged to the second main connecting end 32 of the power distribution line connecting part 30 and the power distribution line 300, Is reduced. Accordingly, the overheating phenomenon at one end of the power distribution line connection unit 30 and the power distribution line 300 connected thereto can be suppressed. The control unit 90 transmits an accident risk signal to the wireless communication module 420 of the distribution box 400 through the communication module 100.

By the above-mentioned series of actions, it is possible to quickly take appropriate measures in a situation room where an accident risk signal is received from the wireless communication module 420 of the extra-high voltage distribution box 400.

As can be seen from the embodiments of FIGS. 1 to 3, the underground wire connector of the special high-voltage switchgear according to the embodiment of the present invention has a structure in which an underground wire and a ground wire Overload and overheating can be prevented automatically by real-time monitoring function.

In addition, when overload and overheating phenomenon occurs in the connection part between the underground cable and the power distribution line connected through the connector in the special high voltage distribution box, the situation is automatically suppressed so that the situation does not progress to a short circuit or fire. At the same time, It does not block the connection so that it does not lead to a power outage for all of the consumers.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all the equivalents or equivalents of the claims, as well as the claims set forth below, fall within the scope of the present invention.

10: housing 11: first insertion hole
12: second insertion hole 13: guide slit
14: Support block 14a: Sliding groove
20: underground wire connection part 21: first main connection terminal
22: first bypass connecting terminal 23: first terminal passage hole
30: Distribution line connection part 31: Guide projection
32: second main connecting end 33: second bypass connecting end
34: second terminal passage hole 40: first terminal rod
41: first guide pin 50: second terminal rod
51: second guide pin 60: terminal rod driving part
61: insulating sheet 62: rack
63: Pinion 64:
64a: drive shaft 70: bypass charge section
71: rechargeable battery 71a: first terminal groove
71b: first pin guide groove 71c: second terminal groove
71d: second pin guide groove 72: cover
72a: first terminal hole 72b: first pin guide hole
72c: second terminal hole 72d: second pin guide hole
80: thermal imaging camera 90:
100: Communication module 200: Underground wire
300: Distribution line 400: Special high voltage distribution box
410: Housing 411:
420: wireless communication module

Claims (1)

And a pair of first insertion holes 411 are formed on one side of the upper surface of the housing 410 in such a manner that an upper end thereof surrounds an opening 411 formed on the lower surface of the housing 410 of the special- (11) are formed to be spaced apart from each other in the vertical direction, and a second insertion hole (12) for insertion of the underground wire (200) is formed below the two side surfaces facing each other, A guide slit 13 is formed along a vertical direction on an inner surface of one side surface disposed at right angles to the side surface of the guide slit 13, and the guide slit 13 protrudes from the inner surface of the side surface on which the guide slit 13 is formed, (10) comprising a support block (14) formed so that a pair of sliding grooves (14a) connected in series with the insertion holes (12) are spaced apart along the vertical direction;
The ground wires 200 fixed to the inner surface of the lower surface of the housing 10 and inserted into the housing 10 through the second insertion holes 12 are electrically and mechanically coupled to each other, A first main connection terminal 21 for electrically connecting the power line 300 of the special high voltage power distribution box 400 and the first main connection terminal 21 electrically connected to the first main connection terminal 21, An insulated underground wire connecting portion 20 including an end 22 and formed with a first terminal passage hole 23 connected to a lower sliding groove 14a of the sliding grooves 14a of the support block 14; );
And a guide protrusion 31 slidably inserted into the guide slit 13 to be slidable along the vertical direction on the side surface of the housing 10 via the guide protrusion 31 and the guide slit 13 And a second main connection for supplying electricity supplied from the first main connection terminal (21) of the ground wire connection part (20) to the power distribution line (300) And a second bypass connection terminal (33) electrically connected to the first main connection terminal (32) and the second main connection terminal (32), is coupled to the underground wire connection part (20) through downward sliding, The second main connecting end 32 is connected to the connecting end 21 and is disconnected from the underground wire connecting portion 20 through the upward sliding to connect the second main connecting end 32 to the first main connecting end 21, When the connection terminal 32 is connected And a second terminal passage hole 34 connected to the upper sliding groove 14a of the sliding block 14a of the support block 14 on the basis of a state of being coupled to the underground wire connecting portion 20, An insulated power distribution line connecting portion 30 formed on the bottom surface thereof;
The support block 14 is slidably inserted into the upper sliding groove 14a of the supporting block 14 and has a corresponding sliding groove 14a and a first insertion hole (11) and the second terminal connecting hole (23) are connected to each other in a state in which they are in contact with or disconnected from the second bypass connecting terminal (33) A conductive first terminal rod 40 having a first guide pin 41 functioning as a terminal is formed at one end drawn out to the outside of the housing 10 through the first terminal pin 40;
The sliding block 14 is slidably inserted into the lower sliding groove 14a of the sliding block 14a of the supporting block 14 and has a sliding groove 14a and a first insertion hole (11) and the first terminal passage hole (23) are connected in series, the first bypass connection terminal (22) can be slid in contact with or released from the first bypass connection terminal (22) A conductive second terminal rod 50 having a second guide pin 51 of a terminal function formed at one end drawn out to the outside of the housing 10 through the second terminal pin 50;
An insulating sheet 61 which is installed in the first terminal rod 40 and the second terminal rod 50 and which surrounds the first terminal rod 40 or the second terminal rod 50, A rack 62 of an insulator formed on the outer surface of the insulating sheet 61 along the longitudinal direction of the first terminal rod 40 or the second terminal rod 50 and a pinion 63 engaged with the rack 62, And a forward and reverse rotation motor (64) installed on a support block (14) of the housing (10) to provide a rotational power to the pinion (63) 60);
A first terminal groove 71a and a first pin guide groove 71b into which the first terminal rod 40 and the first guide pin 41 are inserted are formed and also when the first terminal rod 40 is slid The second terminal groove 50 and the second guide pin 51 are inserted so that the contact between the inner surfaces of the first guide pin 41 and the first pin guide groove 71b is maintained and the second terminal rod 50 and the second guide pin 51 are inserted. 71c and the second pin guide grooves 71d are formed and the inner surfaces of the second guide pins 51 and the second pin guide grooves 71d are kept in contact with each other even when the second terminal rod 50 is slid. A rechargeable battery 71 which is electrically connected to the first terminal rod 40 and the second terminal rod 50 and a second terminal groove 70b which is electrically connected to the first terminal groove 71a and the first pin guide groove 71b, The first terminal hole 72a and the first pin guide hole 72b are formed and the second terminal hole 72c and the second pin hole 72b corresponding to the second terminal groove 71c and the second pin guide groove 71d are formed, A guide hole 72d is formed State surrounding the battery (71) a of the insulating cover 72, by-pass charging portion (70) disposed at the periphery of the housing (10);
An infrared camera 80 installed in the housing 10 to photograph a thermal image of one end of the power distribution line 300 connected to the power distribution line connection unit 30 and the power distribution line connection unit 300 in real time;
Reference thermal image data for determining whether the one end of the power distribution line connection unit 30 and the power distribution line 300 are in an overheated state is set and the thermal image data transmitted through the thermal imaging camera 80 is set to be larger than the predetermined reference thermal image data The first terminal rod 40 is slidably connected to the second bypass connection terminal 33 and the second terminal rod 50 is connected to the first bypass connection terminal 22 A control unit 90 for operating the terminal rod driving unit 60 so as to be slid so as to be connected to the terminal and outputting an accident risk signal for informing the facts to the fact room;
The control unit 90 receives the accident risk signal output from the control unit 90 and transmits the received accident risk signal to the wireless communication module 420 installed in the extra-high voltage distribution cabinet 400 for communication with the control room. And a communication module (100) installed inside the main body (10).

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