KR101555280B1 - System for separating fault section of power distribution line - Google Patents

Abstract

The present invention relates to a system applied with a fault line separation method of a power distribution line, which can prevent related power failure of a normal section because the power distribution line and a normal connection line are blocked and at the same time the power distribution line and a detour line are connected when the power distribution line has a fault, and can connect the power distribution line and the normal connection line and the detour line safely without contact failure because a normal mode splicer and a detour mode splicer include a cylindrical body and a plurality of elastic contact parts which are formed by being bent at an upper part and a lower part of the cylindrical body. The system can perform a contact operation of an elastic contact piece as to a normal connection line splicer, a detour line splicer, the normal mode splicer and the detour mode splicer smoothly, because the elastic contact piece comprises a slope during a process in which the elastic contact piece of the normal mode splicer and the normal connection line splicer of the power distribution line contact each other, a process in which the elastic contact piece of the normal mode splicer and the normal mode splicer of the connection line contact each other, a process in which the elastic contact piece of the detour mode splicer and the detour line splicer of the power distribution line contact each other, and a process in which the elastic contact piece of the detour mode splicer and the detour mode splicer of the detour line contact each other.

Description

[0001] The present invention relates to a system for separating fault lines in a distribution line,

More particularly, the present invention relates to a system in which a fault line separation method is applied to a distribution line, and more specifically, when a distribution line failure occurs, it is quickly disconnected and connected to a bypass line, The present invention relates to a system to which a fault line separation method for a distribution line is applied so that the structure can be easily and safely connected to the distribution line without any faulty contact.

Generally, when a fault current or voltage occurs in a distribution line, a substation blocker is operated in order to find fault current and voltage, and the operator and the substation manager in the field mainly use the communication means to obtain information It was a common method to find out the merits by exchanging them.

However, this method consumes a lot of time and manpower, and as the recovery time becomes longer, the power outage time becomes longer, which causes a problem of inconveniencing power consumers.

Therefore, there is a need for a method of improving the reliability of the power supply and the quality of service for the customer by shortening the power failure time by promptly grasping and recovering the position of the power supply when an accident occurs in the power distribution line.

At present, there is a line automatic switch at the branch point or the entrance of the customer in the substation system.

In case of a ground fault, the line automatic switch interlocks with the line open / close control device installed in the circuit breaker of the substation and the distribution line, so that the fault section can be quickly or precisely blocked or opened to prevent expansion of the fault section and minimize the damage.

However, in the conventional line automatic switch, when a failure occurs in the power distribution system, the failure section of the power distribution line is determined and separated. However, unnecessary wide-area power failure still occurs due to the simple cutoff method, and the normal section There is a problem that a power interruption time of moisture occurs.

If a fault current is detected from the distribution line and the automatic line switch is continued for a certain period of time, the distribution line is completely opened and the line is not reclosed.

When a line failure occurs in the distribution line, the line operator of the line is turned off at the judgment of the operator of the operation room, and the line automatic switch is connected to the associated line.

Such a distribution line has a problem that a power failure occurs only in a malfunction of a normal section or in a fault section and a distant section because a certain time is delayed in separating and returning the fault section.

As a prior art that solves these problems, Korean Patent Registration No. 10-0956712 (registered on Apr. 28, 2010) "Automatic switchgear for fault section of distribution line" (hereinafter referred to as "Prior Art 1" A wired or communication module for receiving the measurement signal of the sensor means for detecting the voltage and current at the lower stage and transmitting the received signal value in real time; A CPU for determining in real time the strength of the signal transmitted from the communication module based on a fault current and a voltage; A battery means connected to the CPU and charged by a power source flowing through a transmission power distribution line; Motor means connected to the CPU and driven by an operation signal of the CPU; A main body having the CPU, the battery means, and the motor means installed inside and having a door; Rotating shaft means connected to the shaft of the motor means; An operating connection member horizontally installed at an end of the rotary shaft means; A connection connecting member for connecting and disconnecting the voltage and the current by insertion and removal while the operating connecting member is rotated by driving of the motor means; And a cover member for protecting the operation connecting member and the connecting connection member so that the line opening and closing device is activated by the detection signal of the sensor means provided on the front end side and the rear end side of the transmission power distribution line passing through the in- And temporarily shut off the flow of the power transmission line to the power transmission line.

However, the prior art 1 has a connection connecting member fixedly installed at the ends of both the transmission / An operating connection member rotated by motor means and rotary shaft means; The operation connecting member is connected to the connection connecting member, and when the transmission / distribution line is broken, the operating connecting member is rotated by the motor means and the rotating shaft means to be connected When the transmission / distribution line is broken, the transmission / distribution line is simply disconnected, resulting in a problem of power outage of the power supply receiving power through the transmission / distribution line. In addition, Since the connection of the transmission / distribution line is made by the connection connecting member formed in the form of a rod and the operation connecting member, there is a fear of causing a contact failure.

Also, as a prior art, Korean Patent Registration No. 10-1441462 (Registered on Sep. 11, 2014), "Failure Zone Separation Control System for Distribution Line" (hereinafter referred to as "Prior Art 2"), And the current and voltage of the distribution line are stopped through the bypass line. Then, the fault section of the distribution line is determined, and it is quickly connected to the bypass line in case of failure of the distribution line to prevent unnecessary wide-area power failure. And it is possible to reliably perform separation and return when a failure occurs in a power distribution line, so that the flow of current and voltage to a reliable power distribution line can be controlled.

The prior art 2 includes upper and lower ground portions which are arranged so as to be able to raise and lower in the forward and backward directions and upper and lower ground portions to which the power distribution lines are connected and upper and lower ground portions which are vertically movable in the left- A motor, a driving gear, a main gear and a rack gear for raising and lowering the upper and lower ground portions arranged in the front-rear direction and the left-right direction; An operation connecting member selectively rotatably mounted on the center portion and horizontally contacting upper and lower ground portions disposed in the front and rear direction and upper and lower ground portions disposed in the left and right direction; A motor, a driving gear, a main gear and a rotation bar for rotating the operational connecting member in a horizontal direction; Sensor means installed in the distribution line; A communication unit for transmitting a signal of the sensor means in real time; And a control unit for driving the upper and lower motors for ascending and descending the upper and lower ground units and for driving the motor for rotating the operating connection member in the horizontal direction based on the signal value transmitted from the communication unit, The upper and lower grounding portions corresponding to the distribution line are normally located at the height of the operating connection member and the operation connecting member is brought into contact with the upper and lower grounding portions corresponding to the distribution line, When the power distribution line is broken, the upper and lower ground portions corresponding to the bypass line are located at the height of the operating connecting member, and the operating connecting member is brought into contact with the upper and lower ground portions corresponding to the bypass line, So as to be connected through the operation connecting member.

However, in this prior art 2, eight driving motors, a pinion, and four rack gears are required for raising and lowering the upper and lower ground portions, and one motor, a driving gear, a main gear and a rotating rod The number of gears, the number of gears, the number of gears, the number of gears, the number of gears, the number of gears, and the number of gears required. Since the upper and lower grounding portions are also formed of vertically spaced bars, there is a possibility that the operating state of the operating connecting member and the bypass line can be poor when the distribution line is connected through the upper and lower grounding portions or when the bypassing line is connected.

Therefore, it is necessary to develop a technology that can supply electric power without power failure to the power receiver when the power line failure occurs, but also the structure is simple and the contact state of the distribution line or the bypass line becomes good.

Korea Registered Patent No. 10-0956712 (Registered on April 28, 2010) "Automatic Switchgear for Failure Zone of Distribution Line" Korea Registered Patent No. 10-1441462 (Registered on Sep. 11, 2014) "Separation control system for fault section of power distribution line"

Accordingly, it is an object of the present invention to provide a power distribution system capable of reliably preventing occurrence of a power failure in a normal section by rapidly separating and connecting to a bypass circuit when a failure occurs in a power distribution line, To a system to which a fault line separation method is applied.

According to an aspect of the present invention, there is provided a distribution line having a connection portion and a downwardly bent bypass line connection portion spaced apart from each other at a predetermined distance and bent upwards at an end portion thereof. A normal connecting line disposed at an upper portion of the distribution line and having normal-mode connection portions bent downward at both ends thereof; And a bypass line disposed at a lower portion of the distribution line and having a bypass mode connection portion bent upward at both ends thereof. The normal mode connection port is provided between the connection portion and the normal mode connection portion, and the bypass line connection portion and the bypass mode connection portion The normal mode connection port is formed of an electrically conductive material and includes a cylindrical body and a plurality of elastic contact pieces bent at the lower end of the cylindrical body and elastically contacting the connection portion with the normal connection line, A plurality of elastic connecting pieces bent at an upper end of the cylindrical body to elastically contact the normal mode connecting portion and a reinforcing member formed of an electrically insulating material and surrounding the cylindrical body, The connection port is made of a conductive material, and has a cylindrical body, A plurality of resilient contact pieces formed by bending at a lower end of the cylindrical body and elastically contacting the bypass mode contact portion and a plurality of resilient contact pieces bending at a lower end of the cylindrical body to be elastically contacted with the bypass line connection portion, And the elastic contact pieces of the normal mode connection port and the bypass mode connection port are connected to the connection portion, the normal mode connection portion, the bypass line connection portion, and the bypass mode connection portion, respectively, Further comprising mode switching means for switching the mode by raising and lowering the normal mode connection port and the bypass mode connection port, wherein the mode switching means is coupled to the reinforcing member of the normal mode connection port and the bypass mode connection port And a linear actuator for raising and lowering the platform And a control means for controlling the mode switching means, wherein the control means comprises: a sensor for sensing the voltage and current of the distribution line and outputting a detection signal thereof; and a controller for controlling the linear actuator And a linear actuator driving unit for applying or cutting off power to the linear actuator according to a control signal of the control unit. The present invention provides a system to which a fault line separation method for a distribution line is applied do.

According to the system to which the fault line separation method for power distribution lines according to the present invention is applied, when a power line failure occurs, the power line and the normal connection line are cut off and the power line and the bypass line are connected to each other. .

According to the system of the present invention, the normal mode connection port and the bypass mode connection port include a cylindrical main body and a plurality of elastic contact portions bent at the upper and lower ends of the cylindrical main body, The connection to the bypass line and the bypass line is securely connected without any contact failure.

According to the system to which the fault line separation method for a power distribution line according to the present invention is applied, a process in which a connection portion is brought into contact with a normal connection line between an elastic contact member and a power distribution line of a normal mode connection port, A process in which the elastic contact piece of the bypass mode connection port and the bypass line connection part of the bypass line contact with each other and a process in which the bypass contact mode of the bypass contact line of the bypass mode connection port and the bypass mode connection part of the bypass mode line contact each other, So that the contacting operation of the elastic contact pieces with respect to the connecting portion, the bypass line connecting portion, the normal mode connecting portion, and the bypass mode connecting portion can be smoothly performed.

1 to 4 show a preferred embodiment of a system to which a fault line separation method for a distribution line according to the present invention is applied,
1 is a perspective view showing an apparatus for implementing a system to which a fault line separation method for a distribution line according to the present invention is applied,
2 is an exploded perspective view showing an apparatus for implementing a system to which a fault line separation method for a distribution line according to the present invention is applied,
3 is a sectional view showing a normal mode in which a distribution cable and a connection cable are connected,
And
4 is a sectional view showing a bypass mode in which a distribution cable and a bypass cable are connected.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a system to which a fault line separation method according to the present invention is applied will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

As shown in FIGS. 1 to 4, the system to which the fault line separation method according to the present embodiment is applied includes a power distribution line 10, 20 spaced apart from the power distribution line by a predetermined distance, And a bypass line 40 connecting the power distribution lines 10 and 20 in a fixed mode to each other.

Connected portions 11 and 21 are connected to the end portions of the power distribution lines 10 and 20 by upwardly folded normal connection lines and downwardly bent bypass line connection portions 12 and 22 are provided. The normal connection line 30 is disposed on the upper side of the distribution line 10 and 20 and the normal mode connection portion 31 is downwardly bent at both ends of the normal connection line 30. The bypass line 40 is disposed on the lower side of the distribution line 10 and 20 and the bypass line connecting portion 41 is provided at both ends of the bypass line 40 to be bent upward.

The normal mode connection port 100 is provided between the connection lines 11 and 21 and the normal mode connection line 31 and the bypass mode connection port 41 is provided between the bypass line connection units 12 and 22 and the bypass mode connection unit 41 200 are provided.

The normal mode connection port 100 is formed of a conductive material and includes a cylindrical body 110 and a plurality of bent portions formed at the lower end of the cylindrical body 110 to elastically contact the connecting portions 11 and 21 by the normal connecting line. A plurality of elastic connecting pieces 130 that are bent at the upper end of the cylindrical body 110 and resiliently contact with the normal mode connecting portion 31 and are formed of an electrically insulating material, And a reinforcing member 140 surrounding the cylindrical body 110.

The bypass mode connection port 200 is formed of an electrically conductive material and includes a cylindrical body 210 and a plurality of bypass connection portions 220 bending at the upper end of the cylindrical body 210 to elastically contact the bypass line connection portions 12, A plurality of resilient contact pieces 230 bent at a lower end of the cylindrical body 210 to elastically contact the bypass mode contact portion 41 and formed of an electrically insulating material, And a reinforcing member 240 surrounding the cylindrical body 210.

The cylindrical bodies 110 and 210 and the elastic contact pieces 120, 130, 220 and 230 can be manufactured by cutting, curving and bending a metal plate such as a copper alloy or an aluminum alloy.

The elastic contact pieces 120, 130, 220 and 230 are connected to the connection portions 11 and 21, the normal mode connection portion 31, the bypass line connection portions 12 and 22 and the bypass mode connection portion 41, respectively, It is preferable to provide the inclined surfaces 121, 131, 221, and 231 for smooth connection.

The reinforcing members 140 and 240 are composed of a pair of half blocks 141 and 241 having an inner circumferential surface surrounding the front half and the rear half of the outer circumferential surface of the cylindrical bodies 110 and 210. By tightening the bolt and nut, And may be configured to be in close contact with the outer peripheral surface of the cylindrical bodies 110 and 210. Since the bolts and nuts that tighten the pair of half blocks 141 and 241 are coupled together with the platform 310 constituting the mode switching means 300, .

The normal mode connection port 100 and the bypass mode connection port 200 are driven by the mode switching means 300 in a normal mode or a bypass mode.

The mode switching means 300 includes a platform 310 connected to the normal mode connection port 100 and the bypassing mode connection port 200 and a reinforcing member 310 connected to the reinforcement member 140 and 240 of the detour mode connection port 200, And an actuator (320).

The platform 310 includes a coupling piece 311 coupled to the reinforcing members 140 and 240 and a coupling block 312 connecting the coupling pieces 311. The coupling piece 311 is coupled to the reinforcing members 140 and 240 by the coupling bolt 313 and the coupling nut 314 coupled thereto together with the reinforcing members 140 and 240. The coupling bolts 313 penetrate through the pair of half blocks 141 and 241 constituting the coupling piece 311 and the reinforcing members 140 and 240. The coupling bolts 313 are inserted into the projecting end portions of the coupling bolts 313, It is preferable that the half blocks 141 and 241 of the reinforcing members 140 and 240 are coupled and the engaging pieces 311 are engaged with the reinforcing members 140 and 240 by fastening the reinforcing members 314.

Since the elevator base 310 is preferably made of an electrically conductive material, since the normal mode connection port 100 and the reinforcing members 140 and 240 of the bypass mode connection port 200 are formed of an electrically insulating material, There is no need to configure.

The linear actuator 320 includes a linear actuator body 321 and a movable shaft 322 that is vertically movable from the linear actuator body 321. The upper end of the movable shaft 322 is coupled to the platform 310, And is connected to the lower end surface of the connecting rod 312 of the motor.

A flange 323 is formed at the upper end of the movable shaft 322 and the flange 323 is formed at the upper end of the movable shaft 322 as in the conventional bolt fastening method in order to join the upper end of the movable shaft 322 and the lower end surface of the linkage 312, (Not shown) can be fastened to the lower end surface of the connecting block 312. Since the fastening method is a conventional fastening method, a detailed description thereof will be omitted.

The linear actuator 320 includes a coil wound in a cylindrical shape and forming an electromagnetic field when a current is applied thereto, a stationary core fixedly installed in the coil, a movable core 322 located at a lower portion of the fixed core in the core, And a spring that elastically supports the movable core in a state in which power is not applied and is provided between the fixed core and the movable core. Since this is a typical configuration of a conventional solenoid, And description thereof will be omitted.

A system to which the fault line separation method for distribution lines according to the present invention is applied includes a control means (400) for controlling the mode switching means (300).

The control means 400 includes sensors S1 and S2 for sensing the voltage and current of the distribution lines 10 and 20 and outputting the detection signals to the distribution lines 10 and 20 and the sensors S1 and S2 The control unit 410 controls the linear actuator 320 to apply or cut off power to the linear actuator 320 according to a detection signal of the linear actuator 320 according to a control signal of the controller 410, And a linear actuator driving unit 420 for driving the linear actuator.

The power source required for the linear actuator 320 may be a commercial power source 220V or a battery B as shown in the drawing. The battery B may be connected to a commercial power source to be used as a power source for the linear actuator 320 or may be connected to another solar cell module for charging and used as a power source for the linear actuator 320.

The linear actuator 320 may be mounted on a base plate 330 fixedly installed around the distribution line. A control box 430 having a lid 440 may be installed on the base plate 330 so that the controller 410, the linear actuator driver 420 and the battery B can be received therein.

Hereinafter, the operation of the system to which the fault line separation method of the distribution line according to the present invention is applied will be described.

When the power distribution by the power distribution lines 10 and 20 is normally performed, the power is distributed in the normal mode.

In the normal mode, the sensors S1 and S2 output a normal sensing signal. In response to the normal sensing signal, the controller 410 outputs a power down command to the linear actuator 320, The linear actuator driving unit 420 cuts off power to the linear actuator 320.

When the power is cut off to the linear actuator 320, the movable core 322 coupled to the movable core is lowered by the elastic force of the spring provided in the linear actuator 320, The platform 310 descends.

When the platform 310 descends, the normal mode connection port 100 coupled to the platform 310 and the bypass mode connection port 200 are simultaneously lowered.

When the normal mode connection port 100 and the bypass mode connection port 200 are lowered, the resilient contact piece 120 of the normal mode connection port 100 is elastically contacted to the connection portions 11, 21 by the normal connection lines of the power distribution lines 10, And the resilient contact pieces 130 are connected to the normal mode connection part 31 of the normal connection line 30 so that the power distribution lines 10 and 20 and the normal connection line 30 are connected to the normal mode connection port 100 The elastic contact piece 230 of the bypass mode connection port 200 is connected to the bypass mode connection port 41 of the bypass circuit line 40 and the elastic contact piece 220 of the bypass mode connection port 200 is connected The power distribution lines 10 and 20 and the bypass line 40 are kept separated from each other since they are separated from the bypass line connection portions 12 and 22 of the distribution lines 10 and 20 (see FIG. 3).

Therefore, in the normal mode, the power distribution lines 10 and 20 are connected through the normal connection line 30, and normal power distribution is performed.

When the power distribution by the power distribution lines 10, 20 is not normally performed due to the failure, the power distribution is performed in the bypass mode.

In the bypass mode, the sensors S1 and S2 detect a failure and output a failure detection signal. According to the failure detection signal, the controller 410 outputs a power supply command to the linear actuator 320, The linear actuator driving unit 420 applies power to the linear actuator 320 according to the grant command.

When power is applied to the linear actuator 320, an electromagnetic field is formed around the coil, so that the movable core and the movable shaft 322 coupled to the movable core 322 are lifted. Thus, the platform 310 coupled to the movable shaft 322 ).

When the platform 310 rises, the normal mode connection port 100 coupled to the platform 310 and the bypass mode connection port 200 simultaneously rise.

When the normal mode connection port 100 and the bypass mode connection port 200 rise, the elastic contact piece 220 of the bypass mode connection port 200 is elastically contacted with the bypass line connection portions 12, 22 of the distribution line 10, And the resilient contact pieces 230 of the bypass mode connection port 200 are brought into contact with the bypass mode connection portion 41 of the bypass circuit 40 so that the distribution lines 10 and 20 and the bypass circuit 40 are connected to the bypass mode connection port 41, The elastic contact member 130 of the elastic connection port 130 of the normal mode connection port 100 is connected to the normal mode connection unit 31 of the normal connection line 30, The resilient contact pieces 120 of the connection port 100 are separated from the connection portions 11 and 21 by the normal connection lines of the power distribution lines 10 and 20 so that the power distribution lines 10 and 20 and the normal connection line 30 are separated (See Fig. 4).

Therefore, in the bypass mode, the power distribution lines 10 and 20 are connected through the bypass line 40, and the power distribution is bypassed.

As described above, according to the system to which the fault line separation method for the distribution line of the present invention is applied, when a failure occurs in the distribution line, the distribution line and the normal connection line are blocked, and the distribution line and the bypass line are connected. It can be surely prevented.

The normal mode connection port 100 and the bypass mode connection port 200 are connected to the upper ends of the cylindrical bodies 110 and 210 and the upper and lower ends of the cylindrical bodies 110 and 210, And the connection to the power distribution lines 10 and 20 and the normal connection line 30 and the bypass line 40 are securely connected without any contact failure .

The process of contacting the connecting portions 11 and 21 with the normal connecting line of the elastic contact pieces 120 of the normal mode connection port 100 and the distribution lines 10 and 20 and the process of contacting the elastic contact pieces 130 of the normal mode connection port 100 22 and the bypass line connecting portions 12 and 22 of the bypass lines 20 and the elastic contact pieces 220 of the bypass mode connection port 200 are in contact with the normal mode connecting portion 31 of the connecting line 30, And the elastic contact pieces 120, 130, 220, and 230 are in contact with the elastic contact piece 230 of the bypass mode connection port 200 and the bypass mode connection portion 41 of the bypass circuit 40, Since the inclined surfaces 121, 131, 221 and 231 are provided, the elastic contact of the connection portions 11 and 21, the bypass line connection portions 12 and 22, the normal mode connection portion 31 and the bypass mode connection portion 41, The contact operation of the pieces 120, 130, 220, and 230 is smoothly performed.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10, 20: Distribution line 30: Normal connection line
40: bypass line 100: normal mode connection port
200: bypass mode connection port 110, 210: cylindrical body
120, 130, 220, 230: elastic contact pieces 121, 131, 221, 231:
140, 240: reinforcing member 300: mode switching means
310: platform 30: linear actuator
400: control means S1, S2: sensor
410: control unit 420: linear actuator driving unit

Claims (1)

A distribution line (10, 20) spaced apart at regular intervals and provided with connecting portions (11, 21) and downwardly bent bypass line connecting portions (12, 22) A normal connection line 30 disposed at an upper portion of the distribution line 10, 20 and having normal mode connection portions 31 bent downward at both ends thereof; And a bypass line (40) disposed at a lower portion of the distribution line (10, 20) and having a bypass mode connection portion (41) bent upward at both ends thereof,
The normal mode connection port 100 is provided between the connection lines 11 and 21 and the normal mode connection line 31 and the bypass mode connection port 41 is provided between the bypass line connection units 12 and 22 and the bypass mode connection unit 41 200,
The normal mode connection port 100 is formed of a conductive material and includes a cylindrical body 110 and a plurality of bent portions formed at the lower end of the cylindrical body 110 to elastically contact the connecting portions 11 and 21 by the normal connecting line. A plurality of elastic connecting pieces 130 that are bent at the upper end of the cylindrical body 110 and resiliently contact with the normal mode connecting portion 31 and are formed of an electrically insulating material, And a reinforcing member (140) surrounding the cylindrical body,
The detour mode connection port 200 is formed of a conductive material and includes a cylindrical body 210 and a plurality of elastic members 231 formed at the upper end of the cylindrical body 210 to elastically contact the bypass line connection portions 12, A plurality of elastic contact pieces 230 that are bent at a lower end of the cylindrical body 210 to elastically contact the bypass mode contact portion 41 and a plurality of elastic contact pieces 230 that are formed of an electrically insulating material, And a reinforcing member 240 surrounding the main body 210,
The elastic contact pieces 120, 130, 220 and 230 of the normal mode connection port 100 and the bypass mode connection port 200 are respectively connected to the connection portions 11 and 21 through the normal connection lines, the normal mode connection portion 31, 131, 221 and 231 are provided for smooth connection when they are connected to the bypass mode connecting portion 41,
The normal mode connection port 100 and the bypass mode connection port 200 are simultaneously raised and lowered,
In the normal mode, the normal mode connection port 100 and the bypass mode connection port 200 are simultaneously lowered so that the normal mode connection port 100 is connected to the distribution line 10, 20 and the normal connection line 30, The mode connection port 200 and the normal connection port 100 and the normal connection line 30 are connected to the distribution line 10 and 20 so that the mode connection port 200 is separated from the distribution line 10 and 20 and is connected only to the bypass line 40. [ So that a normal power distribution through the power supply can be achieved,
In the bypass mode, the normal mode connection port 100 and the bypass mode connection port 200 are simultaneously raised so that the bypass mode connection port 200 is connected to the distribution line 10, 20 and the bypass line 40, 20 and the bypass mode connection port 200 and the bypass line 40 so that the connection port 100 is separated from the distribution line 10 and 20 and is connected only to the normal connection line 30. [ Further comprising mode switching means (300) for enabling bypass power distribution,
The mode switching means 300 may be configured such that the reinforcing members 140 and 240 of the normal mode connection port 100 and the bypass mode connection port 200 are connected to the normal mode connection port 100 and the bypass mode connection port 200, And a linear actuator 320 for moving the platform 310 up and down, wherein the platform 310 has a coupling piece 311,
The reinforcing members 140 and 240 are composed of a pair of half blocks 141 and 241 each having an inner circumferential surface surrounding the front half and the rear half of the outer circumferential surface of the cylindrical bodies 110 and 210, The half bolts 313 of the reinforcing members 140 and 240 are fastened by the fastening bolts 313 passing through the pair of half blocks 141 and 241 and the fastening nut 314 fastened to the projecting ends of the fastening bolts 313 141 and 241 are coupled with each other and the coupling pieces 311 are coupled to the reinforcing members 140 and 240,
Further comprising a control means (400) for controlling the mode switching means (300)
The control means 400 includes sensors S1 and S2 for sensing the voltage and current of the distribution line 10 and 20 and outputting a detection signal thereof, A linear actuator driver 420 for applying or cutting off power to the linear actuator 320 according to a control signal of the controller 410; A system to which a fault line separation method for a distribution line is applied.

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