KR101889943B1 - Monitoring apparatus of optical fiber underground transmission line - Google Patents

Abstract

The present invention relates to a diagnosis apparatus for a 345KV optical hybrid underground transmission line, which has an improved partial discharge sensor of a 345KV optical hybrid underground transmission line. The partial discharge sensor includes a support bracket and a moving sensor member. The support bracket includes a plurality of support pieces connected to each other in a tunnel; at least one installation groove into which an underground transmission line is inserted in the longitudinal direction; a moving groove installed on the upper surface of the support pieces in the longitudinal direction and providing a passage in which the moving sensor member reciprocates; and a plurality of shock relieving rods installed in the lower part of the support pieces to absorb shocks to the support pieces. The moving sensor member includes a mover formed in the shape of a hollow container in which a microcomputer receiving power through a sensing part is provided; a plurality of wheels installed on the outer surface of the mover and rotated to make the mover move along the moving groove; a plurality of motors installed in the mover and rotating the wheels with the power applied from the microcomputer; and a sensing rod having an end connected to the microcomputer and having the other end bent to correspond to the outer surface of the underground transmission line, sensing partial discharge occurring in the underground transmission line, and transmitting the sensed information to the sensing part through the microcomputer.

Description

TECHNICAL FIELD [0001] The present invention relates to a diagnosis apparatus for an optical grounding transmission line,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an improvement of a partial discharge detection sensor of a 345 KV optical complex transmission line in an underground transmission technology, and more particularly, The present invention relates to a diagnostic apparatus for a 345 KV optical complex ground transmission line which is adapted to detect a partial discharge of a corresponding ground transmission line while moving a sensor member, thereby detecting a minimum number of partial discharges.

Along with the development of IT technology, important devices used in transmission lines have built-in surveillance sensors that enable real-time monitoring.

Underground transmission lines are mainly installed in densely populated urban areas and are managed as one of the important transmission facilities.

However, in case of underground transmission line, real-time monitoring system configuration is not realized due to installation and operation cost problems, and applicable monitoring technology is limited.

Accordingly, until now, the underground transmission line is subjected to periodic off-line diagnosis to determine the deterioration state.

In order to diagnose this skew, there is a problem that the line should be shut down and the accuracy of diagnosis is not high.

As a conventional technique which partially improves such a problem, Korean Patent Registration No. 10-1439399 (Apr. 12, 2014) discloses an optical composite underground transmission, distribution and substation cable monitoring apparatus.

However, since such a conventional optical composite ground transmission, distribution, and transmission cable monitoring apparatus can not stably support the translucent panel, the translucent panel tilts downward based on the horizontal state, There is a problem that judgment can not be performed smoothly. In order to solve such a problem, Korean Patent Registration No. 10-1773931 'Optical composite ground transmission line monitoring apparatus' is disclosed.

A data collecting device 200 for collecting sensing information of the underground transmission line sensed by the sensor unit 100, An upper server 300 that receives the sensing information from the data collection device 200 and monitors the status of the underground transmission line based on the sensing information, And a sensor unit 700 for detecting the failure of the sensor unit when the set time has elapsed. The sensor unit 100 may be provided with a predetermined A partial discharge detection sensor 1000 disposed at an interval to detect a partial discharge of the underground transmission line, and a partial discharge detection sensor 1000 installed in the form of an optical cable together with the underground transmission line to detect a temperature of the underground transmission line A sensor 106 for detecting the level of the electric power on which the underground transmission line is installed, a sensor 106 for detecting the deformation of the underground transmission line, which is installed at a predetermined interval in the underground transmission line, And a sensor 108 as shown in FIG.

In addition, it is possible to check whether the sensor for detecting the state of the optical composite ground transmission line installed in the ground is faulty at a set period, and the translucent panel can be smoothly moved according to driving of the cylinder while stably supporting the translucent panel. So that it is possible to smoothly determine whether the water level sensor is malfunctioning.

However, such a conventional technique has a disadvantage that a large number of partial discharge sensors need to be installed. Therefore, there is a problem in that frequent maintenance is required due to the provision of such a partial discharge sensor.

It is an object of the present invention to reduce the number of maintenance and repair operations by minimizing the number of installed partial discharge sensors installed in the ground.

According to an aspect of the present invention, there is provided a diagnostic apparatus for a 345 KV optical complex transmission line, comprising: a sensor unit for sensing a state of a 345 KV optical complex transmission line; a sensor unit for sensing the sensing information of the underground transmission line detected by the sensor unit; An upper server for receiving the sensing information from the data collection device and monitoring the status of the underground transmission line based on the sensing information, And a sensor for detecting a failure of the sensor unit when a predetermined time has elapsed, wherein the sensor unit is installed at a predetermined interval in the underground transmission line, A partial discharge detection sensor for detecting discharge, and an optical cable in the form of an optical cable together with the underground transmission line A temperature sensing sensor for sensing the temperature of the underground transmission line, a water level sensor for sensing a level of a power port in which the underground transmission line is installed, and a sensor for detecting a deformation of the underground transmission line, The partial discharge detection sensor includes a supporting bracket and a moving sensor member, wherein the supporting bracket includes a supporting piece, a plurality of supporting pieces connected to each other in the tunnel, At least one or more grooves formed in the upper surface of the supporting piece and in which the underground transmission line is inserted in the lengthwise direction, A plurality of support grooves provided at a lower portion of the support piece so as to have a predetermined height, And a buffer angle that absorbs vibration applied to the support piece, wherein the movement sensor member is formed in a hollow shape and includes a movable body having a microcomputer for receiving power through the sensing unit, A plurality of wheels provided in the moving body for rotating the wheels by a power source applied by the microcomputer, and a motor for rotating the wheels, The microcomputer is connected to the microcomputer, and the other end of the microcomputer is bent in correspondence with the outer surface of the underground transmission line so as to detect a partial discharge generated in the underground transmission line and transmit detection information to the sensing unit through the microcomputer. .

According to the present invention, it is possible to detect the partial discharge of the underground transmission line while moving the moving sensor member along the outer surface of the underground transmission line provided in the tunnel, differently from the conventional one, So that the partial discharge can be detected.

In addition, when the vibration is generated in the tunnel through the buffer angle provided at the lower portion of the support piece differently from the conventional one, the vibration can be absorbed by the buffer angle, and the underground transmission line provided in the support piece can be stably maintained .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a diagnostic apparatus for a 345 KV optical complex underground transmission line according to the present invention. FIG.
2 is a block diagram showing a data collecting apparatus in a conventional optical complex underground transmission line monitoring apparatus.
3 is a block diagram of a sensing unit in a conventional optical complex underground transmission line monitoring apparatus.
4 is a cross-sectional view showing a support part of a conventional optical complex underground transmission line monitoring apparatus.
5 is a state diagram illustrating a state in which the guide plate is rotated in FIG.
6 is a diagram illustrating a partial discharge detection sensor of a diagnostic apparatus for a 345 KV optical complex underground transmission line according to the present invention.
Figure 7 is a view of the support bracket of Figure 6;
Fig. 8 is a cross-sectional view of Fig. 7. Fig.
FIG. 9 is another embodiment of FIG.
10 is a view showing the buffer angle of FIG. 6. FIG.
Fig. 11 is another embodiment of Fig.
Figs. 12 and 13 are views showing the moving sensor member of Fig.
Figure 14 is another embodiment of the moving sensor member.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a diagnostic apparatus for a 345 KV optical complex underground transmission line (hereinafter briefly referred to as a "diagnostic apparatus") according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description, the present invention basically cites the contents of the above-mentioned Korean Patent No. 10-1773931, but the present invention is not limited to the conventional partial discharge detection sensor (1000) is improved to easily detect the partial discharge of the transmission line installed in the ground. The main feature is that the ground transmission line is a ground transmission line of 345KV.

1 to 3, a monitoring apparatus according to the present invention includes a sensor unit 100, a control unit 120, a data collecting apparatus 200, an upper server 300, and a sensing unit 700 .

For example, the sensor unit 100 monitors the state of the power transmission path and the state of the ground transmission line installed in the power port. The sensor unit 100 includes a partial discharge detection sensor 1000 for detecting a partial discharge of the underground transmission line, a temperature detection sensor 102 for measuring the distribution temperature of the underground transmission line, A deformation detecting sensor 108 for detecting the deformation of the underground transmission line, and a level detecting sensor 106 for detecting whether the underground transmission line is flooded.

The temperature sensing sensor 102 may be provided as a sensor in the form of an optical cable installed together with an underground transmission line.

In this case, the temperature sensing is not a point, but a continuous distribution throughout the optical cable.

The water level detection sensor 106 is provided for monitoring whether or not the submergence transmission line is submerged. The water level detection sensor 106 includes a light emitting unit 732 for irradiating light, a light receiving unit 734 for sensing the speed at which light emitted from the light emitting unit is incident, ).

The control unit 120 senses the operation state of the ventilation equipment, the lighting equipment, and the opening and closing states of the doors, which are the main facilities of the underground power source, generates the operation state information thereof, receives the control signal from the data collection device 200, The operation can be controlled.

In addition, the control unit 120 transmits a driving signal to the monitoring unit 700 when the set period has elapsed, so that the controller 120 can determine whether the sensor unit 100 is faulty by the operation of the monitoring unit 700. [

The data collecting apparatus 200 collects the sensing information of the sensor unit 100 and the operation state information of the controller 120 and transmits the collected information to the upper server 300. The data collecting apparatus 200 is provided with a plurality of power sources at predetermined intervals so as to transmit the respective positions of the sensor unit 100 and the sensed information measured.

The data collecting apparatus 200 and the sensor unit 100 can communicate in a sleep & wake up manner at predetermined time intervals. This is because the data collecting device 200, which can always receive power, transmits a synchronization packet to the sensor unit 100, and the sensors included in the sensor unit 100 operate in synchronization with the synchronization packet. The sleep time can be set by the operator through the upper server 300, and the sensor unit 100 receives the synchronization packet after wake up and transmits the sensing information to the data collection device 200.

The upper server 300 receives the sensing information and operation state information collected by the data collecting apparatus 200 and monitors the state of the underground transmission line and the operation state of the power saving facility based on the received information have. The upper server 300 stores and manages sensing information and operation state information as a database, and provides a monitoring and diagnostic environment for the underground transmission line using the stored information.

For example, it is possible to monitor the partial discharge of the underground transmission line, to provide the operator with diagnostic information about the partial discharge, to calculate the transmission capacity of the underground transmission line based on the temperature sensing information of the underground transmission line, have.

In addition, by using flood sensor and water level sensor, it is possible to monitor the possibility of flooding in the electric power pit and utilize it to prevent flood damage in advance. That is, the operator can determine whether the underground transmission line is to be inspected and the equipment is to be repaired, using the monitoring / diagnosis system of the underground transmission line based on the sensing information received from the data collection device 200.

In addition, the operation status of each facility can be monitored and the operation can be controlled based on the operation state information of the power saving facility received from the control unit 120. For example, in the case of the ventilation system, the concentration (ppm) of CO, CO2, H2S, CH4, etc. of the power source is higher than a certain level or operates at predetermined time intervals. If not, the ventilation system can be remotely operated or the ventilation system can be checked and repaired.

The upper server 300 generates a control signal for controlling the operation of each facility and transmits the control signal to the control unit 120 through the data collection device 200 to determine whether or not each facility is operated.

The upper server functions as an HMI (Human Machine Interface) that provides an interface for the operator to control the electric power facilities. When a partial discharge occurs in the underground transmission line, the transmission capacity is not constant, or the underground transmission line is flooded Or an alarm signal can be output when a fault occurs in the electric power facility. The alarm signal may be implemented by outputting a warning message on the display screen, or by transmitting the message to the operator's e-mail or cellular phone registered in the database.

The data collecting apparatus 200 includes a data collecting unit 210, a data transmitting unit 220, a central processing unit 230, and a power supply unit 240.

The data collection unit 210 is connected to the sensor unit 100 and the control unit 120 and collects sensing information and operation state information and transmits the control signal received from the upper server 300 to the control unit 120 .

At this time, the data collecting unit 210 and the sensor unit 100 may perform wired or wireless communication. When the wired communication is performed, the data collecting unit 210 and the sensor unit 100 may be connected by an analog signal line, or may use RS232, RS422, RS485 serial communication, or Ethernet communication, You can use wireless LAN, Zigbee or Bluetooth.

The data transmission unit 220 is connected to the upper server 300 and transmits sensing information and operation state information and receives a control signal from the upper server 300. The data transfer unit 220 and the upper server 300 may be connected to each other through a local area network (LAN), and may be an Ethernet-based TCP / IP protocol.

In addition, IEC61850, a standard for substation communication, can be applied.

The central processing unit 230 stores sensing information and operation state information in a storage unit (not shown), and processes data to be transmitted and received by the data collecting unit 210 and the data transmitting unit 220 according to a communication standard. The central processing unit 230 generates a synchronization packet, transmits the generated synchronization packet to the sensor through the data collecting unit 210, and collects the sensing information according to the sleep & wake up method.

The power supply unit 240 plays a role of supplying power so that each functional unit of the data collection device 200 can operate.

In this case, the power supply unit 240 is preferably a rechargeable battery that can be charged and discharged. In the case of charging the power supply unit 240, a battery floating charging method can be used. In the case where the data collecting apparatus 200 performs communication with the sensor unit 100, the control unit 120, or the upper server, it may be influenced by the environment of the power port. Particularly, Can be exposed.

In the case of the floating charging method, since the power source can be charged through the voltage lower than the equal charging method, there is an effect that the amount of noise generated in the communication environment can be further reduced than in the equal charging method.

Also, the power supply unit 240 can be charged through the battery power storage system.

The battery power storage system refers to a facility for storing the nighttime power by using a battery to equalize the power load of the week relatively higher than the nighttime, and then to use the battery during the daytime.

The battery power storage system can be installed directly in an area where electric power is required, and in the present invention, it can be installed in a power port to supply charging power to the data collection device 200.

The sensing unit 700 includes a first coil 714 wound around a resistor 712 connected to the temperature sensor 102 and a power supply 710 supplying current to the first coil 714 to generate heat, A discharge detection unit 720 for supplying a current to the partial discharge detection sensor 1000 to check whether the partial discharge detection sensor 1000 is faulty and a discharge detection unit 720 for detecting the failure of the partial discharge detection sensor 1000. The light emission unit 732 and the light receiving unit 734, And a cylinder 730 for moving the semi-transparent panel 736 forward or backward between the light emitting unit 732 and the light receiving unit 734 so as to determine whether the water level detecting sensor 106 detecting the water level is faulty, And a deformation detecting unit for detecting a failure of the deformation detecting sensor 108 by providing a deformation detecting sensor 108 for detecting a deformation by photographing an outer shape of the underground transmission line.

When the driving signal is transmitted from the control unit 120 after the elapse of the set period, the power is supplied from the power supply 710 to the resistor 712 to generate heat from the first coil 714, And the like.

Also, according to the driving signal transmitted from the control unit 120, a current is supplied from the current supply unit 720 to the partial discharge detection sensor 1000 to check whether the partial discharge detection sensor 1000 senses a discharge.

The rod is projected from the cylinder 730 in accordance with the driving signal transmitted from the control unit 120 so that the translucent panel 736 is advanced at a distance between the light emitting unit 732 and the light receiving unit 734, The time when the irradiated light arrives at the light receiving portion 734 is delayed to check whether the water level detecting sensor 106 is malfunctioning.

In addition, in response to the drive signal transmitted from the control unit 120, the deformation detecting sensor 108 is checked for failure by transmitting a deformation signal from the imaging system to the deformation detecting sensor 108.

Since the inspection operation is performed as described above, it is possible to determine whether the sensor unit 100 is malfunctioning, so that it is possible to determine whether a safety accident is normally caused by the failure of the sensor unit 100, do.

In the present invention, the translucent panel 736 is stably supported and the translucent panel 736 can be smoothly moved along with the driving of the cylinder 730, as shown in FIGS. 4 and 5, So that it is possible to smoothly determine whether the water level detection sensor is malfunctioning.

The supporting part 800 is disposed at a position opposite to the cylinder 730 with respect to the light receiving part 734 and is provided with a supporting bar 810 extending upward from the bottom surface of the power hole, A guide plate 820 extending from the supporting bar 810 in the direction of the cylinder 730 and having a through hole 821 formed in a position facing the light emitting portion 732 and the light receiving portion 734 in the vertical direction, The translucent panel 736 is rotatably provided on the upper portion of the guide plate 820 so as to be positioned before and behind the translucent panel 821 while supporting the translucent panel 736 from the guide plate 820, And a plurality of rollers 830 which are rotated together with the forward and backward movement of the shutter 736 to guide the progress of the translucent panel 736.

The support bar 810 is disposed so that the lower end of the support bar 810 is fixed to the bottom surface of the power hole and the upper end of the support bar 810 extends upwardly and intersects the rod of the cylinder at one side of the cylinder 730.

The guide plate 820 preferably has a rectangular plate shape with one side connected to the upper portion of the support bar 810 and the other side extending in the direction of the cylinder 730.

The through hole 821 is formed at the center of the guide plate 820 so that the light emitted from the light emitting portion 732 can be smoothly transmitted to the light receiving portion 734.

The translucent panel 736 has one side connected to the rod of the cylinder 730 and one side oriented toward the support bar 810 and one side advancing toward the support bar 810 as the cylinder 730 is driven, 730).

The roller 830 is rotatably connected to the front and back of the guide plate 820 about the through hole 821 so as to stably support the translucent panel 736 and the translucent panel 736, So that the translucent panel 736 can smoothly proceed while being rotated together with the forward and backward movement of the translucent panel 736.

The upper front and rear portions of the guide plate 820 can be understood as directions in which the rod of the cylinder 730 intersects with the forward and backward directions.

The support portion 800 can smoothly move the semi-transparent panel 736 according to the driving of the cylinder 730 while stably supporting the translucent panel 736, It is possible to smoothly make a judgment on the user.

The lower part of the support part 800 is fixed to the inner bottom surface of the electric power tool and the upper part of the support part 800 extends upward to contact the guide plate 820 to stably support the guide plate 820, And a foreign matter prevention wall 840 that prevents the foreign object from approaching the light receiving portion 734 from the outside while being accommodated.

The foreign matter prevention wall 840 has a rectangular or cylindrical shape with open top and bottom, and a plurality of hollows 841 are formed on the surface.

This is to allow the immersion water in the power port to flow smoothly into the foreign matter prevention wall 840 while stably supporting the guide plate 820 in accordance with the forward or backward movement of the translucent panel 736.

The foreign matter prevention wall 840 is for preventing a detection error of the light-receiving portion 734, which may be generated when the foreign object approaches the light-receiving portion 734 and collides with, or is stacked or piled up, as the water level in the power hole increases.

The supporting unit 800 may further include a folding member 850 that rotatably connects the guide plate 820 to the supporting bar 810.

The folding member 850 is made of a hinge or the like and is pivoted by an artificial force in a state where the translucent panel 736 is retracted so that the upper portion of the foreign matter prevention wall 840 can be opened.

The support portion 800 may further include binding means 860 for detachably coupling the guide plate 820 to the foreign matter prevention wall 840.

The binding means 860 is composed of a plurality of magnets 861 and is provided at the lower portion of the guide plate 820 in contact with the upper portion of the foreign matter prevention wall 840 together with the upper portion of the foreign matter prevention wall 840, 820 are bound to the foreign matter prevention wall 840 by a magnetic force.

Accordingly, the support unit 800 may be configured to remove the foreign substances or the like present inside the foreign matter prevention wall 840 and to make the determination as to whether the water level detection sensor 106 is malfunctioning smoothly, can do.

Hereinafter, the configuration of the prior art will be described. Hereinafter, the partial discharge detection sensor 1000, which is a main part of the sensing apparatus according to the present invention, will be described in detail.

6, the partial discharge detection sensor 1000 according to the present invention is installed in a longitudinal direction inside a tunnel provided with an underground transmission line L, and supports the underground transmission line L And a movement sensor member 1200 guided by the support bracket 1100 and the support bracket 1100 and reciprocatingly moved to detect a discharge from the outside through the underground transmission line.

For example, as shown in FIGS. 7 to 11, the support bracket 1100 includes a support piece 1110 and a support piece 1110 which are continuously installed in the tunnel T so as to be horizontally long in the longitudinal direction, And a buffer angle 1120 for preventing breakage of the support piece 1110 provided with the underground transmission line L when an earthquake occurs.

Here, the support piece 1110 is provided so as to extend horizontally inside the tunnel T so as to provide a traveling path through which the movement sensor member 1200, which will be described later, can move, and at least one underground transmission line L .

The support piece 1110 is formed to have a plate shape as a whole and has a groove 1111 in which the ground transmission line L is seated and is formed on the upper surface thereof in the longitudinal direction and is moved in parallel to the groove 1111 A groove 1113 is formed in the longitudinal direction so that the moving body 1210 constituting the moving sensor member 1200 can be reciprocated.

At this time, as shown in the drawing, the support piece 1110 can detachably connect another support piece 1110 to the outer surface in addition to the plurality of horizontal support pieces 1110, and the support piece 1110 An insertion groove 1117 for inserting the corresponding engagement protrusion 1115 is formed on the other side and another support piece 1110 is formed on the outer surface of the support piece 1110 So that they can be detachably coupled.

The supporting piece 1110 having the coupling protrusion 1115 and the insertion groove 1117 formed therein is used without the need to replace the supporting piece 1110 when another ground transmission line L is installed inside the tunnel T. [ Thereby providing an advantage of being equipped with newly installed underground transmission line (L).

The ground grooves 1111 are formed on the upper surface of the support piece 1110 in a plurality of configurations so that a plurality of underground transmission lines L can be provided. In this case, A plurality of moving grooves 1113 can be formed so that the plurality of moving sensor members 1200 can be individually sensed.

At this time, it is preferable that the moving grooves 1113 are formed on the upper surface of the supporting pieces 1110 in the same number as the number of the underground transmission lines L in order to satisfy the above-mentioned reason.

In addition to the function of stably fixing the support piece 1110 in the tunnel T, when the vibration is generated in the support piece 1110 due to the occurrence of an earthquake or the like, the buffer angle 1120 can absorb the vibration .

For example, the buffer angle 1120 has a predetermined height, and the upper portion thereof is fastened to the lower portion of the support piece 1110 by fastening means P such as a bolt or a screw and the lower portion is fastened to the bottom surface of the tunnel T So that a plurality of support pieces 1110 can be fixed to the inside of the tunnel T.

At this time, an elastic body 1123 such as a coil spring is provided in the extension column 1121 separated from the buffering angle 1120 having a predetermined height, or the extension column 1121 of the buffering angle 1120 It is preferable to make it into a coil spring shape so that the vibration can be absorbed by its elasticity.

The height of the buffering angle 1120 is set to a height at which interference does not occur in the movement of the cylinder 730 and light emitted from the light emitting portion 732 arrives at the light receiving portion 734 A through hole 1119 through which the light passes in the longitudinal direction can be formed.

As shown in FIGS. 12 to 14, the movement sensor member 1200 moves along the outer surface of the underground transmission line L provided in the support piece 1110 to detect a partial discharge. A sensing rod 1220, and a microcomputer 1215.

For example, the moving body 1210 is generally hollow and has a hollow shape, and the microcomputer 1215 is connected to the sensing unit 700 so that power can be supplied through the sensing unit 700.

A motor 1213 electrically connected to the microcomputer 1215 is provided in the moving body 1210. The motor 1213 is rotatably coupled to the wheel 1211 and rotated by the rotation of the wheel 1211 So that the moving body 1210 can move back and forth along the moving groove 1113.

At this time, the motor 1213 is installed inside the moving body 1210 in a pair so that the moving body 1210 stably moves along the moving grooves 1113 and is axially coupled to the wheels 1211, It is preferable that four moving bodies 1210 are provided.

In addition, as shown in the figure, only one of the pairs of wheels 1211 is connected to the motor 1213, and the other is connected to the moving body 1210 in a rotatable manner So that even if only two of the four wheels 1211 are rotated, the moving body 1210 can be rotated.

The sensing rod 1220 is connected at one end to the microcomputer 1215 and at the other end so as to be close to the outer surface of the underground transmission line L so that a partial discharge derived from the underground transmission line L can be sensed do.

The sensing rod 1220 is formed to be bent in an arc shape corresponding to the shape of the ground transmission line L having a predetermined diameter so as to easily detect a partial discharge of the ground transmission line L .

As shown in the drawing, when a plurality of moving bodies 1210 are provided on one support piece 1110, the plurality of sensing rods 1220 along the outer surface of each of the underground transmission lines L may have a shape .

The diagnostic apparatus according to the present invention having the above-described structure is provided with a moving sensor member 1200 (not shown) along the outer surface of an underground transmission line L provided in the longitudinal direction of the supporting piece 1110, The partial discharge of the underground transmission line L can be detected and the effect of being able to sense the minimum number of partial discharges is obtained.

The vibrations can be absorbed by the cushioning angle 1120 when vibrations are generated in the tunnel T through the cushioning angle 1120 provided under the cushioning 1110, So that the underground transmission line L can be stably maintained.

The specific embodiments of the present invention have been described above. It is to be understood, however, that the spirit and scope of the invention are not limited to these specific embodiments, but that various changes and modifications may be made without departing from the spirit of the invention, If you are a person, you will understand.

Therefore, it should be understood that the above-described embodiments are provided so that those skilled in the art can fully understand the scope of the present invention. Therefore, it should be understood that the embodiments are to be considered in all respects as illustrative and not restrictive, The invention is only defined by the scope of the claims.

100: sensor unit 120:
200: data collecting unit 210: data collecting unit
220: data transferring unit 230: central processing unit
240: power supply unit 300: upper server
700: sensing part 800: supporting part
810: Support bar 820: Guide plate
830: roller 840: foreign body wall
850: folding member 860: binding means
861: Magnet 1000: Partial discharge detection sensor
1100: Support bracket 1110: Support piece
1111: equipped groove 1113: moving groove
1115: engaging projection 1117: insertion groove
1119: through hole 1200: moving sensor member
1210: Moving body 1211: Wheel
1213: Motor 1215: Microcomputer
1220: Detection rod

Claims (1)

A data collecting apparatus 200 for collecting sensing information of the underground transmission line detected by the sensor unit 100, a data collecting apparatus 200 for collecting sensing information of the underground transmission line detected by the sensor unit 100, (300) for monitoring the status of the underground transmission line based on the sensing information, at least one operation status information And a sensor unit 700 for detecting the failure of the sensor unit when the set time has elapsed. The sensor unit 100 may be installed at a predetermined interval in the underground transmission line, A temperature detection sensor 102 installed in the form of an optical cable together with the underground transmission line and sensing the temperature of the underground transmission line, And a deformation detection sensor (108) installed at a predetermined interval in the underground transmission line to detect a deformation of the underground transmission line, 1. An underground transmission line monitoring apparatus comprising:
The partial discharge detection sensor 1000 includes a support bracket 1100 and a movement sensor member 1200,
The support bracket 1100 includes a support piece 1110 provided inside the tunnel T so as to be connected to a large number of the support bracket 1100. At least one support bracket 1100 is formed on the support piece 1110, And a moving groove provided in the longitudinal direction on the upper surface of the supporting piece 1110 in proximity to the supporting groove 1111 to provide a moving path so that the moving sensor member 1200 can reciprocate And a buffer angle 1120 installed at a lower portion of the support piece 1110 so as to have a predetermined height to support the support piece 1110 and absorb the vibration applied to the support piece 1110,
The moving sensor member 1200 includes a moving body 1210 having a hollow body and having a micom 1215 receiving power through the sensing unit 700. The moving body 1210 includes a plurality of A plurality of wheels 1211 rotatably mounted on the moving body 1210 and allowing the moving body 1210 to move along the moving groove 1113 by rotation of the moving body 1210, A motor 1213 for rotating the wheel 1211 by a power source that is connected to the microcomputer 1215 and the other end is bent to correspond to the outer surface of the underground transmission line L so that the underground transmission line L And a sensing rod 1220 for sensing a partial discharge generated in the sensing unit 700 and transmitting the sensed information to the sensing unit 700 through the microcomputer 1215. [ Of the diagnostic device.

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