KR101698566B1 - Connector for underground power distribution line - Google Patents

Abstract

The present invention relates to a distribution connector apparatus for an underground power distribution line. According to the present invention, connection between first and second power distribution lines by first and second connection devices is surely performed without contact defect. Moreover, when failure is detected by detecting the voltage and the current of the first and second power distribution lines, the first and second connection devices shut off the first and second power distribution lines, and make the first and second power distribution lines separated from the first and second connection devices to fully ensure an insulation distance between the first and second connection devices and the first and second power distance lines. Thus, the first and second power distribution lines can be safely shut off, and failure occurrence information is transmitted to a central control system to enable a manager of the central control system to confirm the failure occurrence information and quickly take measures on the failure.

Description

Technical Field [0001] The present invention relates to a connector for an underground power distribution line,

The present invention relates to a power distributing connector device for underground power distribution lines, and more particularly to a power distributing and connecting device for connecting first and second power distribution lines to first and second power distribution lines by means of first and second connection ports, And an insulation distance between the first and second distribution lines and the first and second connection ports is sufficiently secured when the second distribution line is cut off so that both distribution lines can be safely and reliably cut off.

Generally, in order to supply electric power to electric power customers in urban areas, it has been widely used a power transmission and distribution facility where electric poles are installed at regular intervals on the road side, and electric power lines are installed by using electric wires and insulators.

However, there is a problem that the processing power distribution line is intertwined with the complicated distribution lines, and there is a risk of short-circuit or short-circuit accident, vulnerability to typhoons and rainfall, and deterioration of urban aesthetics.

In Korea, for the first time in 1973, the underground project of the distribution line was started, and the installation of the processing and distribution facility was technically impossible and the maintenance was difficult. In the area where the maintenance line was concentrated, the substation where the lines were concentrated, the highway, the highway, Location, high load density, and high-rise building to secure the supply capacity. In areas where it is technically difficult to construct a multi-line system, support business expenses, and work in cooperation with administrative offices of local residents, etc. When constructing a substation or adding substation main transformers to existing substations, Has installed a power line or a conduit line in the middle of a ship's battery in order to take out the power line of the power line.

In recent years, there has been a great deal of interest in the area of electric facilities and other related laws (roads, urban planning, construction, river, park, fire prevention, etc.) In the case of installing a distribution line, it is necessary to install a distribution and distribution facility in the area where it is feasible to supply to the underground line at the request of the administrative office or the customer, the area where power supply and substation outlets are many, The underground project is under way for bridges, other facilities, security, and technically underground facilities.

The undergroundization rate of distribution lines in foreign countries is 100% in London and Paris.

Underground distribution facilities are classified into direct sales type, channel distribution type and power distribution type according to the installation type.

A direct-operated distribution facility is a system in which a cable is installed in a through-hole to protect a power distribution line, a sand between the trough and the cable is filled, and the lid is covered. Depth of burial shall be more than 1 ~ 2m in places subject to heavy pressure of vehicles and 60cm in other places in accordance with Electrical Equipment Technical Standard, but in case of other underground burials, depth shall be adjusted considering the relation with other underground burials. .

The duct type is a system in which a duct and a manhole are installed, and a cable is drawn into a pipeline so that a cable can be connected in a manhole. It is applied to places with heavy traffic in the city where roads can not be kept excavated for a long time like the direct sales type. In consideration of the problems of re-excavation of the places where the future expansion is expected, the pipelines and manholes are installed in advance.

The old power distribution facilities are constructed by constructing tunnels of the size that the worker can pass through in the ground and supporting the cables on the supports (shelves) by installing supports (shelves) on both sides of the tunnels. It is also referred to as a cul-de-sac or a cul-de-sac. The outdated power is advantageous in the case where the number of cables is 20 or more and in a region where a multi-line is required such as a substation withdrawal part, and when using a cable of an ultra-high pressure or higher, convenience of maintenance, maintenance and inspection and heat dissipation are widely used.

A tunnel is installed on both sides with respect to the power old manhole, and an input side distribution line installed in one side tunnel and an output side distribution line installed on the other side tunnel are connected by a connector device in a manhole.

Also, when fault current and voltage are generated in the distribution line, the operator of the substation and the substation manager of the substation are operated mainly to find out the information about the accident point It is a common way to find out the merits by exchanging.

However, the above method requires a lot of time and manpower, and as the recovery time becomes longer, the power outage time becomes longer, causing electric power users to suffer a lot of inconveniences or economic damage due to power failure.

Therefore, there is a need for a method of minimizing the reliability of the power supply and the damage to 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.

In recent years, a line automatic switch is installed at a branch point or a power supply entrance point of a load capacity of 400 kVA or less in a substation system. In the case of a ground fault, the line automatic switch closes or opens only the fault section in cooperation with the line open / close control device installed in the circuit breaker of the substation and the distribution line to prevent the fault section from expanding and minimize the damage.

A circuit breaker (CB), a load break switch (LBS), and a circuit breaker (LBS) are provided for isolating and isolating faulty currents and voltage faults when fault currents and voltages are detected, , And a recloser.

The circuit breaker may open or close the line when a very large fault current is detected from the distribution line. It is also possible to open and close the line normally when normal current flows.

Unlike a circuit breaker, a switch can only be opened or closed when a current does not flow or a normal current and voltage flow, and when a fault current and voltage occur, the line can not be opened or closed. A control unit such as a feeder remote terminal unit (FRTU) may be installed in the switch for controlling the operation thereof. The FRTU is a device connected to the mechanical part of the switch to control the opening and closing of the switch. However, the FRTU can control the mechanism by receiving a command from a host (main controller) through a communication function, rather than controlling the mechanism by determining the line opening / closing through the switch.

A recloser is a special type of circuit breaker that performs reclosing of a line. When a fault current is detected from the distribution line and continues for more than a certain range, the recloser opens the line and closes the line again after a preset time. When the fault current is continuously detected even after the line is closed, the recloser repeats the reclosing process of the line as described above a predetermined number of times, completely opens the line where the fault current continues, and performs the reclosing operation Do not.

However, when a line failure occurs in the distribution line, it is determined by the person in charge of the distribution management system or the operation room, or by switching off the two switches of the line by the automatic separation program by the distribution line and inputting the switch of the associated line do.

Therefore, it is inevitable to determine the fault zone of the person in charge of the distribution management system or the distribution operation room. Since the lack of training and the accident caused by the simulation do not occur as described above, there is a case where the human being delays the fault of the fault section, that is, the fault section detachment time due to the human error.

In view of such a conventional problem, in recent years, a voltage and current at a lower stage are detected, and a high advantage (FI: Fault Indicator) by a fault current calculation is determined in real time and transmitted to a system. The terminal device uses an automatic switchgear of the power distribution system, that is, an automatic switchgear for the fault section of the power distribution line, which performs the function of separating / returning the fault section by the self-communication and the failure judgment algorithm.

As a prior art related to the related art, Korean Patent No. 10-0956712 (Registered on Apr. 29, 2010), "automatic open / close device for fault section of power transmission line" is known.

In the prior art, the line open / close device is activated by the detection signals of the sensor means provided at the front end and the rear end of the power transmission and distribution line passing through the outboard poles to temporarily shut off the flow of power to the power transmission line and the power distribution line The present invention relates to an automatic opening and closing apparatus for a fault section of a transmission line and a power distribution line. The present invention relates to an automatic opening and closing apparatus for a fault section of a transmission line and a power distribution line, A wired or communication module for transmitting 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 and 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 connection member and the connection connection member.

The prior art has an operation connecting member having a connection connecting member at the distal end of both power distribution lines and horizontally rotating between the connecting connection members at both ends. The signal detected by the sensor means for detecting the current, When the connection connecting members of both power distribution lines are connected by the operating connecting member, the operating connecting member is rotated in parallel with the power distribution line by the motor means and the rotating shaft means, When the connection connecting members of both power distribution lines are cut off, the operating connecting member is configured to be rotated at right angles to the power distribution line by the motor means and the rotary shaft means.

However, in the prior art, since the connection connecting member is composed of the four connecting rods in the form of the fixing plate and the round bar, and the operating connecting member is formed in the shape of a square rod insertable between the four grounding rods, There is a possibility of connection failure due to the wire contact, and in the case of shutting off the both side power distribution lines, since the rotation axis means and the operating connection member are located between the connection and connection members of both side power distribution lines, insulation between the connection connection member and the operation connection member There is a fear that a sufficient distance can not be ensured so that complete shut-off of both power distribution lines may not be achieved.

Therefore, it is possible to securely connect both power distribution lines without connection failure, but to sufficiently isolate the operating connection members from the connection and connection members in a state where both power distribution lines are separated, .

Korea Registered Patent No. 10-0956712 (Registered on April 29, 2010) "Automatic switchgear for fault section of power transmission line"

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a method of connecting a first and a second distribution line to a first distribution line and a second distribution line when a first distribution line and a second distribution line are disconnected by the first and second connection ports, And the second connection port can be sufficiently secured so that both power distribution lines can be safely and reliably cut off.

According to an aspect of the present invention, there is provided a ground-based transformer comprising: a ground transformer installed on an upper portion of an underground tunnel, a manhole, and a manhole; a first power distribution line connected to an output terminal of the ground- A first connection port connected to the conductor portion of the first power distribution line and the left half of the outer circumferential surface of the conductor portion of the second power distribution line; and a second connection port connected to the second power transmission line, And a second connection port which is connected to the conductor portion of the first distribution line and to the right side portion of the outer circumference of the conductor portion of the second distribution line, the first connection port being formed in an L- A first contact piece that is in contact with the left half of the outer peripheral surface of the second distribution line and whose lower end is in contact with the left half of the outer peripheral surface of the conductor portion of the second distribution line, A first reinforcing element formed in an L shape having an insertion groove having a semicircular cross section into which the first contact element is inserted and a first connecting arm connected to the front side of the first reinforcing member to form a screw through hole at a lower end, Wherein the second connection port is formed in an L shape having a semicircular cross section as a conductor so that an upper end of the conductor is in contact with a right side portion of the outer circumferential surface of the conductor portion of the first power distribution line and a lower end thereof is in contact with a right side portion of the outer circumferential surface of the conductor portion of the second power distribution line 2 contact piece and an L-shaped second reinforcement piece having an insertion groove having a semicircular cross section into which the second contact piece is inserted as an insulator and a second reinforcement piece joined to the rear side of the second reinforcement piece and extending downward, A mount including a second connection arm on which a ball is formed, the mount being fixed to a side wall of the manhole; Connection driving means mounted on the mount for moving the first connection port and the second connection port in a connecting direction or a blocking direction; Wherein the mount further comprises a pair of left and right brackets for supporting the connection driving means and the spacing drive means, And the connection drive means includes first and second connection arm insertion / extraction ports into which the first and second connection arms can be inserted, respectively, and first and second connection arm insertion / A second connection arm holder; And a first and a second solenoid mounted symmetrically on a bracket of the mount and having an operating rod penetrating the bracket and having a tip coupled to the first and second connection arm holders, A rotation guide shaft which is rotatably supported at its front and rear ends on a bracket of the mount and guides the first and second connection arms in the forward and backward directions; And a motor which is mounted on the bracket and in which a motor shaft is coupled to a front end portion of the rotation guide shaft, wherein a voltage and a current of the first and second power distribution lines are detected to determine whether or not a malfunction occurs, And controls the first connection port and the second connection port to block the first power distribution line and the second power distribution line and controls the first connection port and the second connection port to connect or disconnect the first power distribution line and the second power distribution line according to the input mode Wherein the control means comprises a first fault detection sensor installed in the first distribution line for detecting a voltage and a current and a second fault detection sensor installed in the second distribution line for detecting a voltage and a current, And an input unit for inputting a cutoff mode; And outputs a connection command for causing the first and second solenoids to operate in the connection direction when the connection mode is input to the input unit, The first and second solenoids are operated in the blocking direction when a fault point is determined by judging the high advantage in real time according to the detection signals of the first and second fault detection sensors or when the cutoff mode is inputted to the input unit A controller for outputting a shutoff command, outputting a rotation command for rotating the rotation motor in the rotation direction, and outputting a command for generating a rotation command; A solenoid driver for driving the first and second solenoids according to a connection command and a shutoff command of the controller; A motor driving unit for driving the separation driving motor according to a connection direction rotation instruction and a separation direction rotation instruction of the control unit; And a communication module for transmitting the high-strength occurrence information to the central control system according to the high-strength occurrence information transmission command of the controller.

According to the power distribution connector device of the present invention, the connection of the first and second distribution lines by the first and second connection ports is reliably connected without any contact failure, and the voltage and current of the first and second distribution lines are detected The first and second connection ports block the first and second distribution lines and the first and second connection ports are spaced apart from the first and second distribution lines so that the first and second connection ports and the first The first and second distribution lines can be more safely blocked by ensuring that the insulation distances between the first and second distribution lines are sufficiently secured and that the fault information is transmitted to the central control system, . ≪ / RTI >

In addition, according to the power distribution connector apparatus of the present invention, the first and second distribution lines can be connected or disconnected by the first and second connection ports as the connection mode and the cutoff mode are input to the input unit.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a power distribution connector according to the present invention; Fig.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial longitudinal front view showing an underground distribution line to which an electric distribution connector device of an underground distribution line according to the present invention is applied;
Fig. 2 is an exploded perspective view of a distribution connector device for an underground distribution line according to the present invention, Fig.
3 is a perspective view showing a state in which first and second distribution lines are connected,
4 is a perspective view showing a state in which the first and second distribution lines are cut off,
5 is a perspective view showing a state where the first and second connection ports are rotated in a horizontal state and separated from the first and second distribution lines,
6 is a functional block diagram showing the control means of the power distribution connector device of the underground distribution line according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a distribution connector device for an underground distribution line according to the present invention will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

1 to 6 show a preferred embodiment of a distribution connector device for an underground distribution line according to the present invention.

The distribution connector device for the underground distribution line according to the present embodiment is applied to an underground distribution line including an underground tunnel 10, a manhole 20 and a ground transformer 30 installed at an upper portion of the manhole 20.

The ground transformer 30 is installed inside a transformer cabinet 31 located on the upper surface of a manhole 20. The transformer cabinet 31 transforms the high voltage electricity of 22.9 kV into commercial electricity of 230 V or 380 V, The front surface of which is openable and closable by a door 32.

The first distribution line 40 connected to the output terminal of the ground transformer 30 and the second distribution line 50 horizontally installed in the underground tunnel 10 are installed in the inside of the manhole 20, Are connected and disconnected by the connector device A according to the example.

The first and second power distribution lines 40 and 50 are made up of conductors 41 and 51 and insulation sheaths 42 and 52 and the insulation sheaths 42 and 52 are peeled from the front ends of the conductors 41 and 51, And some of them are exposed.

The connector device A includes a first connection port 100 connected to the conductor portion 41 of the first power distribution line 40 and the left half of the outer circumferential surface of the conductor portion 51 of the second power distribution line 50, And a second connection port 200 connected to the conductor portion 41 of the first distribution line 40 and the right side portion of the outer circumferential surface of the conductor portion 51 of the second distribution line 50.

The first connection port 100 is formed in an L shape having a semicircular cross section as a conductor and has an upper end contacting the left half of the outer circumferential surface of the conductor portion 41 of the first power distribution line 40 and a lower end contacting the second power transmission line 50 Shaped contact portion 110 having a semicircular cross section in which the first contact piece 110 is inserted as an insulator and an L-shaped And a first connection arm 130 extending downwardly from the front side of the first reinforcement member 120 and having a screw through hole 131 formed at a lower end thereof, .

The second connection port 200 is formed in an L-shape having a semicircular cross section as a conductor and has an upper end contacting with the right side portion of the outer circumferential surface of the conductor portion 41 of the first power distribution line 40 and a lower end contacting with the right end portion of the second power transmission line 50 A second contact piece 210 which is in contact with the right side portion of the outer circumferential surface of the conductor portion 51 and an insertion groove 221 having a semicircular cross section in which the second contact piece 210 is inserted as an insulator And a second connecting arm 230 coupled to the rear side of the second reinforcing piece 220 and extending downward and having a screw through hole 231 formed at a lower end thereof.

The first reinforcement member 120 and the first connection arm 130, the second reinforcement member 220 and the second connection arm 230 may be integrally formed or may be connected by a bolt and nut fastening method.

The exposed conductor portions 41 and 51 may be configured to directly contact the first contact piece 110 and the second contact piece 210. However, the conductor portions 41 and 51 may be formed to be in contact with the first contact piece 110 and the second contact piece 210, It is preferable to join the connecting rings 43 and 53 made of a conductor to increase the size of the connecting ring.

The distribution connector device of the underground distribution line according to the present embodiment includes a mount 300 fixed to one side wall of the manhole 20; A connection driving means (400) mounted on the mount (300) for moving the first connection port (100) and the second connection port (200) in a connecting direction or a blocking direction; And spaced drive means 500 for separating the first connection port 100 and the second connection port 200 from the first power distribution line 40 and the first power distribution line 50.

A pair of brackets 310 and 320 for supporting the connection driving means 400 and the spacing driving means 500 are provided on both left and right sides of the mount 300.

The mount 300 is installed horizontally, and the brackets 310 and 320 are vertically installed.

The connection driving means 400 includes first and second connection arm insertion grooves 411 and 421 into which the first and second connection arms 130 and 230 are inserted, First and second connection arm holders 410 and 420 provided with first and second connection arm entry / exit ports 412 and 422 through which the first and second connection arms 230 and 230 can enter and exit; Symmetrically mounted on the brackets 310 and 320 of the mount 300 so that the operating rods 431 and 441 pass through the brackets 310 and 320 so that the tip ends of the first and second connecting arm holders 410 and 420, 420 coupled to the first and second solenoids 430, 440.

The brackets 310 and 320 are formed with operating rod through holes 432 and 442 through which the operating rods 431 and 441 of the solenoids 430 and 440 pass.

The mounting of the first and second solenoids 430 and 440 to the brackets 310 and 320 may be accomplished by a conventional screw connection method and the mounting of the first and second connecting arms 130 and 230 The coupling members 431 and 441 are formed by forming screw holes in the first and second connection arms 130 and 230 and forming threaded portions at the tip ends of the working rods 431 and 441, A shaft and a plate may be formed in a coupling manner. Therefore, detailed description thereof will be omitted.

In the illustrated example, the first and second connection arms 130 and 230 are configured to pivot between a vertically connected state and a horizontally spaced state from the front side, and the first and second connection arm outlets 412 and 422 And has a structure formed on the front side.

Meanwhile, the first and second connection arms 130 and 230 may be configured to pivot between a vertical connection state and a horizontal separation state to the rear side. In this case, the first and second connection arm outlets 412, and 422 may be formed on the rear side.

The first and second connection arms 130 and 230 are smoothly introduced into the first and second connection arm insertion grooves 411 and 421 on the left and right sides of the first and second connection arm outlets 412 and 422 And chamfered first and second inclined guide surfaces 413 and 423 are formed so as to be formed.

The spacing drive means 500 is rotatably supported on the brackets 310 and 320 of the mount 300 so that both ends thereof are rotatably supported by the brackets 310 and 320 of the mount 300, An axis 510; And a spacing drive motor 520 mounted on the bracket 310 and coupled to the front end of the rotation guide shaft 510.

The pivoting guide shaft 510 includes rotary shafts 511 and 512 which are inserted into shaft holes 311 and 321 formed at the brackets 310 and 320 and are rotatably supported at both ends of the rotary shafts 511 and 512, A guide shaft portion 513 integrally formed between the first and second connection arms 310 and 320 to guide the first and second connection arms 130 and 230 in the left and right directions and a guide shaft portion 513 formed at the lower end portions of the first and second connection arms 310 and 320 And guiding holes 514 and 515 guided by the guiding shaft portion 513.

The guide shaft portion 513 and the guide holes 514 and 515 are formed so that the first and second connection arms 310 and 320 can move in the left and right direction with respect to the rotation guide shaft 510, May be formed in a rectangular cross-section as shown in the drawing so as to be rotatable in the front-rear direction together, but may be formed in an elliptical cross section and a non-circular cross section instead of a circular cross section.

The mounting of the spacing drive motor 520 to the brackets 310 and 320 may be accomplished by a conventional screw fastening system and the coupling between the motor shaft and the pivoting guide shaft 510 may be achieved by a conventional axial coupling method, And the detailed description thereof will be omitted.

In addition, the power distribution connector device of the underground distribution line according to the present invention detects the voltage and current of the first distribution line 40 and the second distribution line 50 to determine whether or not the malfunction occurs. When a failure occurs, The second connection port 200 controls the first and second distribution lines 40 and 50 to be shut off and the first connection port 100 and the second connection port 200 are connected to the first distribution line 40 ) And the second distribution line (50) are connected and disconnected.

The control unit 600 includes a first fault detection sensor S1 and a second fault detection unit 60. The first fault detection sensor S1 and the second fault detection unit 50 are installed in the first distribution line 40 to detect a voltage and a current, An input unit 610 for inputting a connection mode and a cutoff mode; When the connection mode is input to the input unit 610, the connection position rotation command for rotating the separation driving motor 520 in the connection direction is output, and then the first and second solenoids 430 and 440 are connected in the connection direction And a failure point is generated by judging a high advantage in real time according to the detection signals of the first and second failure detection sensors S1 and S2, When the cut-off mode is input, a shutoff command is issued to cause the first and second solenoids 430 and 440 to operate in the blocking direction, A controller 620 for outputting a high-frequency occurrence information transmission command; A solenoid driver 630 for driving the first and second solenoids 430 and 440 according to a connection command and a shutoff command of the controller 620; A motor driving unit 640 for driving the separation driving motor 520 according to a connection direction rotation instruction and a separation direction rotation instruction of the control unit 620; And a communication module 650 for transmitting high-strength occurrence information to a central control system (not shown) according to a high-strength occurrence information transmission command of the controller 620.

The power required for the first and second failure detection sensors S1 and S2, the input unit 610, the controller 620, the solenoid driver 630, the motor driver 640, and the communication module 650 is separately charged (Not shown), and the rechargeable battery can be charged by a recharging device (not shown) connected to the second power distribution line 50.

The input unit 610, the control unit 620, the solenoid driving unit 630, the motor driving unit 640 and the communication unit 640 constituting the control unit 600 may be installed in a control box installed in the manhole 20.

Hereinafter, the operation of the power distribution connector device of the underground distribution line according to the present embodiment will be described.

The first and second connection ports 100 and 200 are connected to the first and second distribution lines 40 and 50 in a slanting state in which electricity does not flow through the first and second distribution lines 40 and 50 at the time of initial installation, So that the first and second distribution lines 40 and 50 are disconnected from each other and the first and second connection ports 100 and 200 are pivoted to the separated positions.

When the connection mode is input to the input unit 610 in this state, the control unit 620 outputs a connection position rotation command and the motor driving unit 640 drives the separation driving motor 520 And the rotation driving motor 520 is rotated to the connection position in accordance with the connection position rotation driving signal of the motor driving unit 640 and the rotation of the rotation driving motor 520 at the connection position rotation of the rotation driving motor 520 The rotation guide shaft 510 coupled to the motor shaft rotates in the clockwise direction in the figure and the first and second connection arms 130 and 230 of the first and second connection ports 100 and 200 are formed in a rectangular cross- Since the guide holes 514 and 515 formed in a non-circular cross section are engaged with the guide shaft portion 513 formed on the rotation guide shaft 510 in a non-circular cross section such as a rectangular cross section, the first and second connection arms 130 and 230 Of the connecting arm holders 410 and 420 coupled to the operating rods 431 and 441 by rotating in the clockwise direction, The exit is inserted into the second connection arm (412, 422) the first and second connector insertion hole (411, 421) through.

Since the first and second inclined guide surfaces 413 and 423 are formed in the first and second connecting arm access openings 412 and 422, The insertion of the first and second connection arms 130 and 230 into the second connection arm insertion grooves 411 and 421 is smoothly performed.

The controller 620 outputs a connection command and the solenoid driver 630 transmits a connection driving signal to the first and second solenoids 430 and 440 according to a connection command of the controller 620, The actuating rods 431 and 441 of the first and second solenoids 430 and 440 and the first and second connection arm holders 410 and 420 coupled thereto are advanced in accordance with the connection driving signal of the driving unit 630 The first and second connection arms 130 and 230 are connected to the first and second connection arm insertion grooves 410 and 420 of the first and second connection arm holders 410 and 420 coupled to the operation rods 431 and 441, 411 and 421 so that the first and second connection ports 100 and 200 are advanced toward the first and second distribution lines 40 and 50 so that the first and second contact pieces 110 and 210 are inserted into the first The first and second distribution lines 40 and 50 are brought into contact with the first and second distribution lines 40 and 50 so that the first and second distribution lines 40 and 50 are connected by the first and second connection ports 100 and 200 do.

3, when the first and second distribution lines 40 and 50 are connected by the first and second connection ports 100 and 200, the first fault detection sensor S1 and the second fault detection The control unit 620 outputs a cutoff command to the input unit 610 and outputs a cutoff command to the control unit 620. When the cutoff mode is input to the input unit 610, The solenoid driver 630 transmits a cutoff drive signal to the first and second solenoids 430 and 440,

The operation rods 431 and 441 of the first and second solenoids 430 and 440 and the first and second connection arm holders 410 and 420 coupled thereto are retracted in accordance with the shutdown drive signal of the solenoid drive unit 630 The first and second connection arms 130 and 230 are connected to the first and second connection arm insertion slots 410 and 420 of the first and second connection arm holders 410 and 420 coupled to the operation rods 431 and 441, The first and second connection ports 100 and 200 are retracted from the first and second distribution lines 40 and 50 so that the first and second contact pieces 110 and 210 are inserted into the first and second connection lines 40 and 50, The connection of the first and second distribution lines 40 and 50 by the first and second connection ports 100 and 200 is disconnected from the first and second distribution lines 40 and 50 as shown in FIG.

The control unit 620 outputs a rotation command for the rotation of the rotation driving motor 520. The controller 620 outputs a rotation command to the rotation driving motor 520, A rotation driving signal is transmitted,

The rotation drive motor 520 rotates in the counterclockwise direction in accordance with the rotation drive signal of the motor drive unit 640 and the rotation guide shaft 510 coupled to the motor shaft rotates counterclockwise in the figure, Guide holes 514 and 515 formed on the first and second connection arms 130 and 230 of the first and second connection ports 100 and 200 having a non-circular cross section such as a rectangular cross section are formed on the rotation guide shaft 510, The first and second connection arms 130 and 230 are rotated in the counterclockwise direction and the first and second connection ports 100 and 200 are rotated at the separated positions because the first and second connection arms 130 and 230 are engaged with the guide shaft portion 513 formed as a non- .

At this time, first and second connection arm outlets 412 and 422 are formed on the left side of the first and second connection arm insertion slots 411 and 421 in which the first and second connection arms 130 and 230 are inserted. The first and second connection arms 130 and 230 are pulled out from the first and second connection arm insertion grooves 411 and 421 through the first and second connection arm entry / exit ports 412 and 422, .

Accordingly, the first and second connection ports 100 and 200 shut off the first and second power distribution lines 40 and 50 and are kept apart from the first and second power distribution lines 40 and 50, And the insulation distances between the second distribution line and the first and second connection ports are sufficiently secured, so that the both distribution lines can be safely and reliably cut off.

In the above-described operation, the output of the command of the controller 620 and the sending of the driving signals of the solenoid driver 630 and the motor driver 640 are performed for a predetermined time without a separate operation completion sensor, And can be configured to stop when completed.

If the controller 620 determines that a failure has occurred in the first and second distribution lines 40 and 50, the controller 620 outputs a failure occurrence information transmission command. The communication module 650 transmits the failure occurrence information transmission command (Not shown) to send fault information so that the manager of the central control system can check the fault information and take quick action.

In the above embodiment, the first and second distribution lines 40 and 50 of one line are applied. However, the present invention is also applicable to the first and second distribution lines of a plurality of lines.

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.

40: first distribution line 50: second distribution line
A: connector device 100: first connection port
110: first contact piece 120: first reinforcement piece
130: first connection arm 200: second connection port
210: second contact piece 220: second reinforcement piece
230: second connection arm 300: mount
400: connection driving means 410, 420: first and second connection arm holders
411, 421: first and second connection arm insertion grooves
412, 422: first and second connection arm outlets
413, 423: first and second inclined guide surfaces
430, 440: first and second solenoids
431, 441: Working rod 432, 442: Working rod through hole
500: Spacing drive means 510:
511, 512: rotating shaft portion 513: guide shaft portion
514, 515: guide ball 520:
600: control means 610:
620: Control section 630: Solenoid drive section
640: motor driver 650: communication module

Claims (1)

A ground tunnel 10, a manhole 20, a ground transformer 30 installed on an upper portion of the manhole 20,
A first distribution line 40 connected to an output terminal of the ground transformer 30 and connected to an output terminal of the ground transformer 30 and a second distribution line 50 connected to the ground tunnel 10, In the connector device,
The connector device A includes a first connection port 100 connected to the conductor portion 41 of the first power distribution line 40 and the left half of the outer circumferential surface of the conductor portion 51 of the second power distribution line 50, And a second connection port (200) connected to the conductor portion (41) of the first distribution line (40) and the right portion of the outer circumferential surface of the conductor portion (51) of the second distribution line (50)
The first connection port 100 is formed in an L shape having a semicircular cross section as a conductor and has an upper end contacting the left half of the outer circumferential surface of the conductor portion 41 of the first power distribution line 40 and a lower end contacting the second power transmission line 50 Shaped contact portion 110 having a semicircular cross section in which the first contact piece 110 is inserted as an insulator and an L-shaped And a first connection arm 130 connected to the front side of the first reinforcement member 120 and extending downward and having a screw through hole 131 formed at a lower end thereof, ,
The second connection port 200 is formed in an L-shape having a semicircular cross section as a conductor and has an upper end contacting with the right side portion of the outer circumferential surface of the conductor portion 41 of the first power distribution line 40 and a lower end contacting with the right end portion of the second power transmission line 50 A second contact piece 210 which is in contact with the right side portion of the outer circumferential surface of the conductor portion 51 and an insertion groove 221 having a semicircular cross section in which the second contact piece 210 is inserted as an insulator And a second connecting arm 230 coupled to the rear side of the second reinforcing piece 220 and extending downward and having a screw through hole 231 formed at a lower end thereof,
A mount 300 fixed to one side wall of the manhole 20;
A connection driving means (400) mounted on the mount (300) for moving the first connection port (100) and the second connection port (200) in a connecting direction or a blocking direction; And spaced drive means (500) for separating the first connection port (100) and the second connection port (200) from the first power distribution line (40) and the first power distribution line (50)
The mount 300 includes a pair of left and right brackets 310 and 320 for supporting the connection driving means 400 and the spacing drive means 500,
The connection driving means 400 includes connection arm insertion grooves 411 and 421 into which the first and second connection arms 130 and 230 are inserted and a connection arm insertion groove 411 and 421 through which the first and second connection arms 130 and 230 are inserted First and second connection arm holders 410 and 420 provided with first and second connection arm outlets 412 and 422, respectively; Symmetrically mounted on the brackets 310 and 320 of the mount 300 so that the operating rods 431 and 441 pass through the brackets 310 and 320 so that the tip ends of the first and second connecting arm holders 410 and 420, 420 coupled to the first and second solenoids 430, 440,
The spacing drive means 500 is rotatably supported on the brackets 310 and 320 of the mount 300 so that both ends thereof are rotatably supported by the brackets 310 and 320 of the mount 300, An axis 510;
And a separation driving motor 520 mounted on the bracket 310 and coupled to the front end of the rotation guide shaft 510,
The first connection port 100 and the second connection port 200 are electrically connected to the first power line 40 and the second power line 50. When a failure occurs, The first connection port 100 and the second connection port 200 are connected to and disconnected from the first power distribution line 40 and the second power distribution line 50 according to the input mode, Further comprising control means (600)
The control unit 600 includes a first fault detection sensor S1 and a second fault detection unit 60. The first fault detection sensor S1 and the second fault detection unit 50 are installed in the first distribution line 40 to detect a voltage and a current, An input unit 610 for inputting a connection mode and a cutoff mode;
When the connection mode is input to the input unit 610, the connection position rotation command for rotating the separation driving motor 520 in the connection direction is output, and then the first and second solenoids 430 and 440 are connected in the connection direction Outputting a connection command for operating,
If a fault point is determined by judging a high advantage in real time according to the detection signals of the first fault detection sensor S1 and the second fault detection sensor S2 or a shutoff mode is input to the input unit 610, And the second solenoids 430 and 440 to be operated in the blocking direction, and then outputs a blocking position rotation command for causing the separation driving motor 520 to rotate in the spacing direction, A control unit 620 for outputting an information transmission command;
A solenoid driver 630 for driving the first and second solenoids 430 and 440 according to a connection command and a shutoff command of the controller 620;
A motor driving unit 640 for driving the separation driving motor 520 according to a connection direction rotation instruction and a separation direction rotation instruction of the control unit 620; And
And a communication module (650) for transmitting high-strength occurrence information to a central control system (not shown) according to a high-strength occurrence information transmission command of the controller (620).

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