JPH10142285A - Transmission system of information on accident of power supply cable line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable centralized remote control of data on accident by making a secondary current changed into a current value proportional to earth accident current of a primaly conductor flow in a secondary winding of a clamp CT, thereby operating a discharge tube. SOLUTION: When earth accident has occurred at any steel tower of high voltage power supply line, accident current flowing in an aerial line 51 is changed into a current value proportional to the accident current by a clamp type CT2a to thereby obtain a secondary current by which a discharge tube 2b is operated. The light emitted therefrom is received a light receiving surface facing the tube 2b, and transmitted to a controller 4 through an optical cable 7 connected to an optical connector 2c. The controller 4 converts the light into electric signals again and carries out signal processing to thereby generate accident data.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transmission line accident information transmission system for detecting an accident such as a short circuit or a ground fault in a high-voltage transmission line and quickly specifying the accident tower from a plurality of towers arranged over a wide area. .

[0002]

2. Description of the Related Art In general, when a ground fault or short circuit accident occurs in a high-voltage transmission line, a transmission line manager inspects the transmission line and a tower to check whether the high-voltage transmission line is damaged.・ Checks are being conducted. In order to determine which of the towers supporting the transmission line was subjected to a high-voltage accident current due to a ground fault or short circuit during such an accident, a conventional method was to use an overhead ground wire (lightning strike at the top of the transmission line). (A single non-conducting wire installed to receive power exclusively) or a display (pre-attached to the tower) (ignitions explosives or gas generating agents by the extremely high voltage of the accident current, and discharges a display cloth of a predetermined color. A method has been used in which an inspector visually confirms with a binocular that the display cloth is hanging due to the operation of the hanging device. The display used in such a conventional method is widely used because it is small and lightweight, does not require a power source, and is inexpensive.

[0003]

Since the conventional method of confirming the accident tower was performed as described above, the inspector must use binoculars to find the small display cloth on the high tower. However, there is a problem that the burden on the inspector is large, and the problem of poor visibility occurs. In addition, since the indicator uses explosives, it is dangerous to handle, and it is weak to moisture, and once it operates it needs to be replaced.
There was a problem that the work had to be performed by climbing the steel tower, which was troublesome. In addition, high-voltage transmission lines are generally installed in mountainous areas and other areas where people do not have much access to them, and there is a high risk of snowfall and typhoons in winter. However, there is a problem that it is disadvantageous in terms of cost.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. By monitoring the accident data in a distant place, it is possible to instantaneously identify a failure point, and to perform inspection and inspection in a short time without the need for patrol work for each tower. It is an object of the present invention to provide a transmission line information transmission system capable of performing maintenance.

[0005]

A transmission line accident information transmission system according to the present invention is provided for each steel tower, detects an accident occurring in a high-voltage transmission line, and specifies an accident in the transmission line. In an information transmission system, a clamp-type CT having a clamp-type iron core wound with a secondary winding, attached to an overhead ground wire near the tower, and using the overhead ground wire as a primary conductor; Connected to the secondary winding of
A discharge tube that discharges a flowing secondary current to emit light, an optical connector having a light receiving surface facing the discharge tube, and an optical connector for connecting an optical cable for taking out light of the discharge tube received by the light receiving surface to the outside; An optical cable having a predetermined length connected at one end to a connector, and disposed near the tower and at a predetermined distance from the clamp type CT and the discharge tube, and the other end of the optical cable is connected and obtained through an optical cable. A control unit that converts the light of the discharge tube into an electric signal and sends data of a ground fault obtained by signal processing to a manager, and the accident data transmitted from the control unit of the tower in which the ground fault occurred. This specifies the accident tower. As described above, in the present invention, a secondary current transformed to a current value proportional to the ground fault current flowing through the overhead ground wire of the primary conductor flows through the secondary winding of the clamp type CT. The discharge tube emits light, receives the light on the light-receiving surface, takes it out through the optical connector, transmits it directly to the control device via an optical cable, and obtains the ground fault data of the tower, thus making it easy to target multiple towers. Information can be centrally monitored, accident towers can be quickly identified, inspection and maintenance can be performed in a short time without patrol work for each tower, and labor can be reduced. In addition to the structure that does not use electronic components for the accident detection part, the detection part and the control unit are completely separated and insulated by optical transmission, making them less susceptible to lightning strikes and external noise, as well as reliability. It can be used for a long period of time even in a rapidly changing environment such as a mountainous area, and does not require replacement of parts, so that maintenance costs can be greatly reduced. Furthermore, clamp type C
Because it is a T-type, it can be easily attached to and detached from an overhead ground wire, and is excellent in installation workability.

A transmission line accident information transmission system according to the present invention is provided for each steel tower, detects an accident that has occurred in a high-voltage transmission line, and specifies the accident tower. A CT having an annular core wound with a secondary winding, mounted inside the iron core with a predetermined tower member of the tower penetrating therethrough, and forming the tower member as a primary conductor; A discharge tube which is connected to the secondary winding and discharges a flowing secondary current to emit light, and a light receiving surface facing the discharge tube, and an optical cable for taking out the light of the discharge tube received by the light receiving surface to the outside An optical connector for connection, an optical cable having a predetermined length connected to the optical connector at one end, and a cable disposed near the tower and at a predetermined distance from the CT and the discharge tube; Connected and optical cable And a controller for converting the light of the discharge tube obtained through the cable into an electric signal and sending data of a short circuit accident obtained by signal processing to a manager, and transmitted from the control device of the steel tower in which the short circuit accident occurred. The accident tower is specified by the accident data. As described above, in the present invention, the secondary current transformed into a current value proportional to the short-circuit fault current flowing through the steel tower member of the primary conductor flows through the secondary winding of the CT, and the secondary current causes the discharge tube to emit light. However, by receiving the light on the light receiving surface, extracting it to the outside through an optical connector, transmitting it directly to the control device via an optical cable and obtaining short-circuit accident data, accident information can be easily monitored centrally for multiple towers, Accident towers can be quickly identified, inspection and maintenance can be performed in a short time without patrol work for each tower, and labor can be reduced. In addition to the structure that does not use electronic components for the accident detection part, the detection part and the control unit are completely separated and insulated by optical transmission, making them less susceptible to lightning strikes and external noise, as well as reliability. It can be used for a long period of time even in a rapidly changing environment such as a mountainous area, and does not require replacement of parts, so that maintenance costs can be greatly reduced.

In the transmission line accident information transmission system according to the present invention, if necessary, the control device is inserted into a substantially cylindrical outer cylinder vertically embedded in the ground near the steel tower, and A cap is attached to the upper part of the tube, and the inside of the outer tube is disposed in a sealed state. As described above, in the present invention, the control device is buried underground so as to be less susceptible to environmental changes. It can be used for a long time while ensuring reliability.

Further, the transmission line accident information transmission system according to the present invention is disposed above the steel tower as required,
A transmission antenna for transmitting radio waves, wherein the control device includes:
It has a wireless transmission function of transmitting accident data obtained by processing of the control device to the outside through the transmission antenna. As described above, according to the present invention, the radio transmission function provided in the steel tower transmits accident data in the event of an accident by radio waves, and finally transmits the information to the management department, thereby facilitating system construction. In addition to being able to perform the operation at low cost, the radio waves transmitted from each tower can also be received by the patrol vehicle, and the information on the accident tower can be directly received to enable quicker response at the site.

Further, in the transmission line accident information transmission system according to the present invention, the transmission antenna has a reception antenna function of receiving a radio wave, if necessary, and the control device includes:
It has a wireless relay function of receiving accident data of another tower transmitted from another through the transmission antenna, and transmitting the received accident data to the outside with a predetermined output. As described above, in the present invention, the accident data at the accident tower is sequentially transmitted from the farther tower to the next tower, and the information is transmitted to the final management department, so that the communication distance is shorter. The communication output method requires only a range including the matching steel tower, and the transmission function can be reduced as a communication output method with a short reach. In addition, a license application or the like is not required and the system can be easily constructed.

In the transmission line accident information transmission system according to the present invention, if necessary, a specific control device among the plurality of control devices includes a GPS transmitter having a GPS communication function, and a device other than the specific control device is used. The accident data from the control device is transmitted from the specific control device via a GPS transmitter. As described above, in the present invention, a GPS transmitter is provided in a specific control device in this group as a plurality of control devices as one group, and the accident data of the entire group is transmitted via the GPS transmitter. Therefore, accident data can be transmitted reliably and quickly without being affected by other relay devices.

[0011] Further, the transmission line accident information transmission system according to the present invention is disposed above the steel tower as required,
A solar cell panel that obtains electric power from sunlight, and a battery that is disposed near the control device and stores a part of the electric power obtained from the solar cell by charging. The generated power and the power charged in the battery are used. As described above, in the present invention, by supplying power from the solar cell, there is no need to replace and maintain the power supply, and there is no need to supply power from the outside, and the power supply is affected by troubles such as power failure. Absent.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION

(One Embodiment of the Present Invention) Hereinafter, a transmission line accident information transmission system according to one embodiment of the present invention will be described with reference to FIGS. 1 is an explanatory diagram of the entire configuration of a transmission line accident information transmission system according to the present embodiment, FIG. 2 is an explanatory diagram of a single configuration of the transmission line accident information transmission system according to the present embodiment, and FIG. FIG. 4 is a schematic configuration diagram of a control device of a transmission line accident information transmission system according to the embodiment, FIG. 4 is a schematic diagram of a ground fault detector of the transmission line accident information transmission system according to the present embodiment, and FIG. FIG. 6 is a schematic explanatory diagram of a short-circuit detector of the transmission line accident information transmission system according to the present embodiment, FIG. 6 is a schematic explanatory diagram of an antenna unit of the transmission line accident information transmission system according to the present embodiment, and FIG. The storage state explanatory drawing of the control apparatus of the transmission line accident information transmission system which concerns on this Embodiment is shown.

As shown in the drawings, the transmission line fault information transmission system 1 according to the present embodiment includes a ground fault detector 2 for detecting a ground fault, and a short-circuit detector for detecting a short-circuit fault. 3 and a control device 4 that obtains accident information from the ground fault detector 2 and the short-circuit detector 3 and performs signal processing for transmission.
And a solar panel 5 for supplying power to the control device 4
b is disposed on the surface, and includes an antenna unit 5 that transmits transmission data generated by the control device 4 and receives information transmitted from another tower.

The ground fault detector 2 includes a clamp type CT (measurement current transformer) 2a in which an overhead ground wire 51 is inserted as a primary conductor between a clamp-type iron core having a secondary winding. A discharge tube 2b which is connected to the secondary winding of the clamp type CT 2a and discharges a flowing secondary current to emit light, and a discharge tube 2b
And a discharge tube 2b obtained with this light-receiving surface.
Optical connector 2 for connecting an optical cable 7 for extracting light from the outside
c. A secondary current transformed to a current value proportional to the fault current flowing through the overhead conductor 51 of the primary conductor flows through the secondary winding of the clamp type CT 2a, and the secondary current causes the discharge tube 2b to emit light and emit light. Is transmitted from the light receiving surface to the control device 4 as it is via the optical cable 7 connected to the optical connector 2c. In the ground fault detector 2, the magnitude of the fault current can be detected from the amount of light emitted from the discharge tube 2b.

The short-circuit detector 3 includes a CT 3a that is disposed inside a ring-shaped iron core having a secondary winding and a tower leg 50a serving as a primary conductor, and a secondary winding of the CT 3a. A discharge tube 3b which is connected to a wire and emits light by discharging a flowing secondary current, and a light receiving surface facing the discharge tube 3b, and an optical cable 8 for taking out the light of the discharge tube 3b obtained from the light receiving surface to the outside This is a configuration including an optical connector 3c for connection. The tower leg 50, which is a primary conductor, is
a, a secondary current transformed to a current value proportional to the fault current flows through the discharge tube 3b, and the discharge tube 3b emits light due to the secondary current.
The light is directly transmitted from the light receiving surface to the control device 4 by the optical cable 8 connected to the optical connector 3c. The short-circuit detector 3 can detect the magnitude of the fault current based on the amount of light emitted from the discharge tube 3b.

The secondary current obtained by the clamp type CT2a or CT3a of these ground fault / short detectors 2 and 3 is as follows:
Although the signal can be sent directly to the control device 4 to perform signal processing, if a conductor is wired between the overhead ground wire 51 and the control device 4, there are many problems such as potential generation and susceptibility to adverse effects such as lightning strikes. Therefore, the CTs 2a and 3a and the discharge tube 2
b and 3b are connected, and the current is converted into light to transmit a signal to the control device 4 by light. By completely separating and insulating each detector and the control device 4, a structure that is safe and resistant to external noise is provided.

The control device 4 includes a CPU 4a for processing signals from the ground fault / short detectors 2 and 3, and a CPU 4a.
The radio equipment 4b for converting and transmitting the accident data generated and processed by the communication modem 4e into a transmission signal and transmitting and transmitting the electric power, and charging and storing the power from the solar cell panel 5b of the antenna unit 5 under the control of the charging unit 4d. And a battery 4c serving as a power supply for the CPU 4a and the wireless device 4b.
It is configured to be inserted and disposed in a PVC outer tube 6 buried vertically in a vertical hole immediately below the steel tower 50 formed to about 0 to 600 mm. A cap 6a is mounted on the upper part of the outer cylinder 6, and a polystyrene foam 6c of a heat insulating material is provided inside.
Is arranged to prevent external influences, and the inspection can be easily performed by opening the cap 6a and pulling out the control device 4 along the rail 6b inside the outer casing 6.

The antenna section 5 has a transmitting and receiving antenna 5a for transmitting and receiving radio waves, and a solar cell panel 5b disposed on the surface of a box-shaped case. The communication method is
Since transmission between the pylons 50 is sufficient, a specific low-power system is used that has a narrow reach and does not require a permit application.
b is simplified and power saving. The solar cell panel 5b is made of only a durable glass material, and can withstand severe environmental changes. Further, since the solar cell panel 5b has two systems, the primary system and the secondary system, even if one system fails, power can be supplied from another system. The electric power collected from the solar cell panel 5b is charged to the battery 4c of the control device 4 so that the electric power can be supplied even when there is no sunshine. Power required for one transmission / reception operation is several meters
The controller 4 does not require a large amount of power because it operates only once or several times a day at about W
The U4a and the like normally consume little power due to the sleep function, and thus have a sufficient mechanism for supplying power from a solar cell.

The accident information transmission system 1 composed of the above-described elements is provided in each of the towers 50 so that the accident data at the accident tower can be sequentially transmitted from a farther tower to an adjacent tower by a wireless relay function. , And finally transmit the information to a management department such as a power station, a substation, or a power transmission management station. Thus, when a ground fault, short circuit, or the like occurs in each of the towers 50 constituting the high-voltage transmission line extending over a wide area, the system can be operated as a system that immediately specifies the position of the tower and transmits status information of the tower. The radio waves transmitted from the accident tower can be received by the patrol vehicle, and information on the accident tower can be directly received to take measures.

Next, a description will be given of an accident information transmission operation in the transmission line accident information transmission system based on the above configuration. When a ground fault occurs in any of the towers 50 of the high-voltage transmission line, a secondary current obtained by transforming a fault current flowing through the overhead ground wire 51 into a current value proportional to the fault current by the clamp CT2a is obtained. Can be Discharge occurs in the discharge tube 2b by the secondary current obtained by the clamp type CT 2a, and the current is converted into light by emitting light according to the magnitude of the secondary current. Light emitted from the discharge tube 2b is received by a light receiving surface facing the discharge tube 2b, and transmitted to the control device 4 through an optical cable 7 connected to the optical connector 2c.

On the other hand, when a short-circuit accident occurs in the high-voltage transmission line, a secondary current obtained by transforming the fault current flowing through the tower leg 50a to a current value proportional to the fault current by the CT 3a is obtained. The discharge tube 3b is generated by the secondary current obtained by the CT 3a.
Discharge occurs, and light is emitted according to the magnitude of the secondary current, whereby the current is converted to light. The light emitted from the discharge tube 3b is received by the light receiving surface facing the discharge tube 3b, and the optical connector 3c
Is transmitted to the control device 4 through the optical cable 8 connected to the control device 4.

The control device 4 converts the light into an electric signal again, performs signal processing in the CPU 4a, and generates accident data.
The accident data is the identification code (ID number) unique to this tower.
At the same time, the signal is transmitted as a radio wave from the antenna unit 5 to the adjacent tower by the radio unit 4b along a transmission path set in advance. When the pylon 50 relays data from another pylon, the antenna section 5 receives the radio waves of the upstream pylon data transmitted from the adjacent pylon, amplifies it by the control device 4 and re-amplifies it. From to the next tower.
While transmitting data one after another from a distant tower to an adjacent tower, information is propagated to a management station such as a power station, a substation, or a power transmission management station. At this time, even the patrol vehicle can directly receive the accident tower information from any of the towers 50. The accident information can be processed by referring to the ID number of each tower 50 to identify the accident tower.

As described above, in the accident information transmission system 1 according to the present embodiment, the equipment is independent for each tower, and the system is configured to transmit and receive data to and from each other to transmit the accident information. Centralized monitoring of accident information for stakeholders can be easily realized, the accident tower can be identified quickly, inspection and maintenance can be performed in a short time, and the communication distance can be limited to the range including adjacent towers, thus reducing the cost of the transmission / reception system. And the construction of the system is easy. In addition, by burying the control device 4 which is an electronic device in the underground which does not touch the environment as much as possible, the temperature change is particularly large, and even in a mountainous place where the environment is severe for the electronic device, the temperature change is eliminated and the electronic device is It can be protected, can withstand all environmental changes around the tower 50, and can be used for a long time without trouble. Furthermore, the detector 2 for ground fault and the detector 3 for short-circuit are simple and hard to break down without using electronic components, so that they can endure even in a rapidly changing environment such as a mountainous area. In this state, it can be used as many times as possible against a short circuit, ground fault or lightning, and is completely separated and insulated from the control device 4 by optical transmission. Therefore, the control device 4 is not affected by lightning or external noise.

(Another embodiment of the present invention) FIG. 8 is a schematic configuration diagram of a control device in a transmission line accident information transmission system according to this embodiment, and FIG. 9 is adopted by the control device shown in FIG. FIG. 10 is an explanatory diagram of a transmission order by the control device shown in FIG. 8, and FIG. 11 shows a data format of a device information area in a transmission format corresponding to the transmission order shown in FIG.

In each of the drawings, the fault information transmission system for a transmission line according to the present embodiment includes a ground fault detector 2, a short-circuit detector 3, and a short-circuit detector 3, similarly to the system of the embodiment shown in FIGS. Control device 41 (corresponding to 4 in FIG. 3)
And the antenna unit 5 in common, and the control device 41 additionally includes a GPS (Global Positioning System) transmitter 4f. The control device 41 is provided only in a specific tower 50b in a predetermined installation area where a plurality of towers 50 are installed, and the other towers 50 in this installation area are provided with the configuration shown in FIG. A control device 4 in the form is provided.

Next, the operation of transmitting the accident information of the transmission line accident information transmission system according to the present embodiment based on the above configuration will be described. First, regarding transmission of accident information between the plurality of towers 50 centering on the specific tower 50b, the radio 4b and the communication modem 4e are transmitted in the same manner as in the accident information transmission system described in FIGS. Do through.

In this manner, the accident information is transmitted between the towers 50 in the installation area, and the specific tower 50 is transmitted.
b, all of the accident information is transmitted to this particular tower 5
All of the accident information of each of the towers 50 and 50b is transmitted from the GPS transmitter 4f of the control device (base unit) 41 provided at 0b to the power transmission monitoring station via the satellite. Since the accident information for each installation area is collected and transmitted from the control device 41 of the specific tower 50b directly to the power transmission monitoring station via the satellite, the towers of other installation areas, etc., which become relay stations, are provided. The accident information can be reliably and quickly transmitted to the power transmission monitoring station without being affected by the failure in the 50 control devices 4.

The transmission of the accident information of each of the towers 50 and 50b is made up of information in the transmission format shown in FIG. 9A. In this figure, the transmission format is a header portion formed by a transfer start code at the time of data transmission. ST
X, ETX of the transfer end code at the time of data transmission which is a trailer part, and B of the check code of the data block
The identification part and the message part of the device information area are included between the CC and the CC. The identification unit includes information such as a transmission source and a transmission path. The device information area includes a control device (master device) 41 having a GPS transmitter 4f. This is the area where accident information is written.
This device information area has data contents as shown in FIG. 11A when communication is performed in the transmission order shown in FIG. 10A, and FIG. 10B shows the data contents in FIG. C)
Are the data contents respectively corresponding to FIG.

When the transmission order is changed from FIG. 10 (A) to FIG. 10 (B), the control device (device 1) 4 and the control device (device 2)
4, the occurrence of radio interference. In this case, by changing the transmission order from the control device (equipment 1) 4 to the control device (equipment 2) 4 via the control device (equipment 3) 4, all the towers 50 and 50b in the installation area can be connected. The accident information can be transmitted within the transmission path.

Further, when the communication function of the control device (device 2) 4 is completely out of order, as shown in FIG. The accident information can be transmitted between the devices (equipment 1, 3) 4. In this case, the communicable range of the control device 4 needs to be at least twice as long as the interval between the towers 50. For example, when the distance between the towers 50 is 400 m, the communicable range of the control device 4 is 800 m.

Further, when a special transmission format as shown in FIG. 9B is used, when the control unit 4 detects an accident or condition other than the detection of a ground fault or a short circuit, the accident or condition is detected. Is transmitted from the power transmission monitoring station, and installation and the like can be performed. For example, when a temperature sensor or the like is added to detect the weather, temperature, or the like in the area where the steel tower 50 is provided, the detection data from the temperature sensor or the like is sent to the CPU 4a.
Can be analyzed and processed based on the newly installed application program and transmitted to the power transmission monitoring station.

[0032]

As described above, according to the present invention, the secondary current transformed to a current value proportional to the ground fault current flowing through the overhead ground wire of the primary conductor flows through the secondary winding of the clamp type CT. This secondary current causes the discharge tube to emit light, receive the light on the light receiving surface, take it out through the optical connector, transmit it directly to the control device via an optical cable, and obtain the ground fault data of the In this way, accident information can be easily and centrally monitored, the accident tower can be quickly identified, inspection and maintenance can be performed in a short time without patrol work for each tower, and the labor can be reduced. In addition to the structure that does not use electronic components for the accident detection part, the detection part and the control unit are completely separated and insulated by optical transmission, making them less susceptible to lightning strikes and external noise, as well as reliability. It has the effect that it can be used for a long period of time even in an environment with high change such as a mountainous area, does not require replacement of parts, and can greatly reduce maintenance costs. Further, since the clamp type CT system is used, it can be easily attached to and detached from an overhead ground wire, and has an effect of being excellent in mounting workability. Further, in the present invention, a secondary current transformed to a current value proportional to a short-circuit fault current flowing through the tower member of the primary conductor flows through the secondary winding of the CT, and the secondary current causes the discharge tube to emit light. By receiving the light on the light receiving surface, extracting it to the outside through an optical connector, transmitting it directly to the control device via an optical cable and obtaining short-circuit accident data, accident information can be easily monitored centrally for multiple towers,
This has the effect that the accident tower can be quickly identified, inspection and maintenance can be performed in a short time without patrol work for each tower, and labor can be reduced. In addition to the structure that does not use electronic components for the accident detection part, the detection part and the control unit are completely separated and insulated by optical transmission, making them less susceptible to lightning strikes and external noise, as well as reliability. High endurance even in high-change environments such as mountainous areas,
There is also an effect that the replacement of parts is unnecessary and the maintenance cost can be greatly reduced. Also, in the present invention, the control device is buried underground so as to be less susceptible to environmental changes, so that the reliability of the devices can be improved even in mountainous areas where the temperature changes greatly and the electronic devices are severe. This has the effect that the properties can be ensured and long-term use is possible. Further, in the present invention, the radio transmission function provided on the tower transmits accident data in the event of an accident by radio waves, and finally transmits the information to the management department, so that the system can be easily and easily constructed. In addition to being able to be performed at low cost, the transmitted radio waves of each tower can also be received by a patrol vehicle, and the information of the accident tower can be directly received to enable quicker response at the site. Further, in the present invention, the accident data at the accident tower, the data is transmitted in order from the more distant tower to the next tower, and the communication distance is adjacent by transmitting the information to the final management department. It is possible to reduce the cost of the transmission function as a communication output method with a short reach, as well as to reduce the cost of the transmission function, and to facilitate the system construction without the need for permission application. In the present invention, a plurality of control devices are grouped into one group, and a specific control device in this group is provided with a GPS transmitter,
Since the accident data of the whole group is transmitted via the PS transmitter, there is an effect that the accident data can be transmitted reliably and quickly without being affected by other relay devices. Further, in the present invention, by supplying power from the solar cell, there is no need to replace or maintain the power supply, and there is no need to supply power from the outside, and there is no influence from troubles such as power failure. It has the effect of.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the entire configuration of a transmission line accident information transmission system according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a single configuration of a transmission line accident information transmission system according to an embodiment of the present invention.

FIG. 3 is a schematic configuration explanatory diagram of a control device of the transmission line accident information transmission system according to one embodiment of the present invention.

FIG. 4A is a schematic configuration diagram of a ground fault detector of a transmission line accident information transmission system according to an embodiment of the present invention. (B) is a side view of a main part of the ground fault detector of the transmission line accident information transmission system according to one embodiment of the present invention.

FIG. 5 is a schematic structural explanatory view of a short-circuit detector of the transmission line accident information transmission system according to one embodiment of the present invention.

FIG. 6A is a front view of an antenna unit of the transmission line accident information transmission system according to one embodiment of the present invention.
(B) is a schematic configuration explanatory view of an antenna unit of the transmission line accident information transmission system according to one embodiment of the present invention.

FIG. 7A is a plan view of a storage state of a control device of the transmission line accident information transmission system according to one embodiment of the present invention. (B) is an AA sectional view of FIG. 7 (A).

FIG. 8 is a schematic configuration diagram of a control device in a transmission line accident information transmission system according to another embodiment of the present invention.

9A is a transmission format adopted by the control device shown in FIG. 8; (B) is a transmission format adopted by a control device in another accident information transmission system.

FIG. 10A is an explanatory diagram of a transmission order by the control device illustrated in FIG. 8; FIG. 9B is an explanatory diagram of a transmission order by the control device illustrated in FIG. 8. (C) is an explanatory view of the transmission order by the control device shown in FIG. 8.

FIG. 11A is a data format of a device information area in a transmission format corresponding to the transmission order shown in FIG. 10A. (B) is the data format of the device information area in the transmission format corresponding to the transmission order shown in FIG. 10 (B). (C) is FIG.
It is a data format of the device information area in the transmission format corresponding to the transmission order described in (C).

FIG. 12A is an explanatory diagram when a transmission disabled state occurs in the middle in the transmission order shown in FIG. 10A;
FIG. 12B is an explanatory diagram of a transmission order corresponding to the transmission disabled state in FIG.

[Description of Signs] 1 Accident information transmission system 2 Ground fault detector 2a Clamp type CT 2b Discharge tube 2c Optical connector 3 Short circuit detector 3a CT 3b Discharge tube 3c Optical connector 4, 41 Controller 4a CPU 4b Radio 4c Battery 4d Charging unit 4e Communication modem 4f GPS transmitter 5 Antenna unit 5a Transmission / reception antenna 5b Solar cell panel 6 Outer cylinder 6a Cap 6b Rail 6c Styrofoam 7,8 Optical cable 50,50b Iron tower 50a Tower leg 51 Overhead ground wire

Claims (7)

[Claims] Claims: 1. A clamp-type core having a secondary winding wound in a transmission line accident information transmission system for detecting an accident occurring in a high-voltage transmission line and identifying the accident tower, provided for each tower. A clamp-type CT attached to an overhead ground wire near the tower, and forming the overhead ground wire as a primary conductor, and connected to a secondary winding of the clamp-type CT to discharge a secondary current flowing therethrough. A light-emitting discharge tube, a light-receiving surface facing the discharge tube, an optical connector for connecting an optical cable for extracting light of the discharge tube received by the light-receiving surface to the outside, and a predetermined end connected to the optical connector. An optical cable having a length, disposed in the vicinity of the tower and at a predetermined distance from the clamp type CT and the discharge tube, connected to the other end of the optical cable, and converts the light of the discharge tube obtained through the optical cable into an electric signal. Convert and A control device that sends data of the ground fault accident obtained by signal processing to the administrator, and the accident tower is identified by the accident data sent from the control device of the tower in which the ground fault occurred. Transmission information transmission system for transmission line. 2. An accident information transmission system for a transmission line, which is provided for each tower, detects an accident occurring on a high-voltage transmission line, and specifies the accident tower. A CT that is attached to the inside of the iron core with a predetermined tower member of the tower penetrating therethrough, and that makes the tower member a primary conductor; and a secondary current that is connected to a secondary winding of the CT and flows. A discharge tube that discharges and emits light; a light receiving surface facing the discharge tube; an optical connector for connecting an optical cable for taking out the light of the discharge tube received by the light receiving surface to the outside; and one end of the optical connector. An optical cable having a predetermined length to be connected, disposed near the steel tower and at a predetermined distance from the CT and the discharge tube, connected to the other end of the optical cable, and electrically connected to the light of the discharge tube obtained through the optical cable. Convert it to a signal, A control device for sending data of a short-circuit accident obtained by signal processing to a manager, wherein the accident tower is identified by accident data sent from the control device of the tower in which the short-circuit accident has occurred. Railway information transmission system. 3. The power line accident information transmission system according to claim 1 or 2, wherein the control device is inserted into a substantially cylindrical outer cylinder vertically embedded in the ground near the steel tower, An accident information transmission system for a power transmission line, wherein a cap is attached to an upper part of an outer cylinder and the inner part of the outer cylinder is disposed in a sealed state. 4. The transmission line accident information transmission system according to claim 1, further comprising: a transmission antenna disposed on an upper portion of the tower, for transmitting a radio wave; An accident information transmission system for a transmission line, having a wireless transmission function of transmitting accident data obtained by processing of a control device to an outside through an antenna. 5. The transmission information transmission system according to claim 4, wherein the transmission antenna has a reception antenna function of receiving a radio wave, and the control device transmits from another via the transmission antenna. An accident information transmission system for a transmission line, having a wireless relay function of receiving the accident data of another tower and transmitting the received accident data to the outside with a predetermined output. 6. The power line accident information transmission system according to claim 1, wherein a specific control device among the plurality of control devices has a global positioning system (GPS) communication function. A transmission line accident information transmission system, comprising: a transmitter, wherein accident data from a control device other than the specific control device is transmitted from the specific control device via a GPS transmitter. 7. The power line accident information transmission system according to any one of claims 1 to 6, further comprising: a solar cell panel disposed above the pylon and obtaining electric power from sunlight; A battery that is disposed and stores a part of the power obtained from the solar cell by charging, wherein power generated by the solar cell panel and power charged in the battery are used as a power source of the control device. Transmission line accident information transmission system.