KR20140042414A - Flashover detection device - Google Patents

Abstract

Disclosed is an invention related to a flashover detection device. The disclosed flashover detection device includes: a support member connected to an insulator of a power transmission and distribution line or an arcing horn for an insulator; an arcing horn for detection to induce the flashover generated from the power transmission and distribution line; a discharge unit mounted on both the arcing horn for the detection and the support member and generating light by inducing discharge through the flashover; and a discharge detection sensor mounted on the discharge unit and detecting the light generated in the discharge unit. [Reference numerals] (100) Reception unit; (80) Detection signal conversion unit; (90) Transmission unit

Description

Flashover Detection Device {FLASHOVER DETECTION DEVICE}

The present invention relates to a flashover detection device, and more particularly, by inducing a discharge to a pair of discharge electrodes when a flashover occurs and detecting it by a detection sensor, discharge detection is accurately performed, and the detection sensor is not exposed to the outside. Since it is provided in a case installed in the case relates to a flashover detection device that can prevent malfunction due to exposure to sunlight and foreign matter accumulation.

In general, an arc of a commercial frequency is generated in a transmission line support due to a stroke. As a result, insulators mounted on transmission and distribution lines are induced with voltages of several hundred thousand volts, causing short circuit and ground faults.

Flashover caused by lightning strikes causes melting and burning of transmission line stops, insulator damage and transmission line support brackets. In particular, the lightning strike of two or more lines or more lines will cause serious obstacles to the operation of the system.

In addition, the high voltage traveling wave introduced into the conductor by flashover is immediately introduced into a transformer, a circuit breaker, and other substation facilities, causing a decrease in insulation performance and failure of the transmission and distribution facilities.

In view of this, conventionally, a line fault locator is operated to calculate fault points by inputting current and voltage in protection relays installed at substations at both ends in order to detect flashovers generated from transmission line support.

Background art of the prior art is disclosed in Korean Utility Model Publication No. 20-0366943 (name of draft: flashover display device of overhead transmission tower) and Korean Utility Model Publication No. 20-0367187 (name of proposal: Songjeong Steel Tower radio transmitter). It is.

In case of using the conventional fault point expression device, the impedance of the power supply terminal and the transmission line of the relative substation and power plant are input to the protection relay S / W in advance, and when the fault occurs, the fault point is determined by the calculated S / W as the voltage / current input value. Predicting

As described above, in the case of using the conventional fault point facial expression apparatus, there is a disadvantage in that the error in the distance of the fault point distance is increased according to the maximum lightning current, falling brain polarity, falling brain multiplicity, and lightning surge characteristics when the lightning strikes. In addition, there is a problem that it takes a lot of time and accurate checks can not be made because of the use of walking and visual inspection when checking the fault point,

In addition, in the case of using the conventional overhead transmission tower flash display device has a hassle to roll the operation display cloth on the rotating shaft after the operation again to the clasp, and there is a problem that the display cloth is blown by a strong wind or damaged.

In addition, in the case of using the conventional flashover tower wireless transmitter, there is a disadvantage in that the flashover or flashover detection sensor near the system is exposed to the outside rather than the reverse flashover of the actual transmission and distribution line support.

Therefore, there is a need to improve this.

SUMMARY OF THE INVENTION The present invention has been made by the necessity as described above, and an object thereof is to provide a flashover detection device which accurately detects discharge by inducing a discharge to a first and a second discharge electrode when a flashover occurs and detecting it by a discharge detection sensor. .

In addition, an object of the present invention is to provide a flashover detection device that can prevent the malfunction due to the exposure of sunlight and the accumulation of foreign matter because the discharge detection sensor is provided in a state wrapped in the case member without being exposed to the outside.

In addition, an object of the present invention is to provide a flashing detection device that can form a molding member around the case member to effectively protect the discharge detection sensor in the event of flashover.

In addition, an object of the present invention is to provide a flashover detection device that can easily perform the installation by coupling the support member connected to the second discharge electrode to the insulator arcing horn using a coupling member.

The flashover detection device of the present invention to achieve the above object, the support member is connected to the insulator or insulator arcing horn of the transmission line; An arcing horn for detecting induction of flashover occurring in the transmission line; A discharge unit provided in each of the detection arcing horn and the support member to generate light by inducing discharge through the flashover; And a discharge detection sensor provided in the discharge unit and detecting light generated by the discharge unit.

In addition, the free end of the detection arcing horn is characterized in that the bent portion is bent to the set angle (θ).

The discharge unit may include: a first discharge electrode formed at an end of the detection arc; A second discharge electrode disposed on the first discharge electrode at a predetermined interval and provided at an end of the support member; And case members formed to have a space therein while surrounding the outside of the first and second discharge electrodes and the discharge detection sensor.

The first and second discharge electrodes may be formed in a spherical shape having a diameter larger than that of the detection arc and the support member.

In addition, the case member is a cylindrical shape in which both sides are blocked, characterized in that the discharge tube made of glass material.

In addition, the inside of the case member is characterized in that the shape of a vacuum tube having a vacuum state.

In addition, the discharge detection sensor is disposed on the side of the center between the first, second discharge electrode, the discharge detection sensor is characterized in that the optical fiber sensor for detecting the light generated during the discharge.

In addition, the signal detected by the discharge detection sensor is transmitted to the outside through a wire, converted into an electrical signal in the detection signal conversion unit and sent out wirelessly, and receiving the radio transmitted electrical signal at the receiver to determine the flashover position It is characterized by.

In addition, the outer side of the discharge portion is characterized in that the molding member for protecting the discharge portion is provided.

In addition, the molding member is characterized in that the epoxy.

In addition, the support member is characterized in that the coupling member is installed on the inking horn.

The coupling member may include: a first coupling member provided at an end of the support member and formed with a first semicircular groove to surround one side surface of the arcing horn for the insulator; A second coupling member disposed to correspond to the first coupling member, and having a second semicircular groove formed to surround one side of the arcing horn for the insulator; And it characterized in that it comprises a fastening member for connecting and coupling the flange portion of the first coupling member and the second coupling member.

In the flashover detection device according to the present invention, when the flashover occurs, the discharge is induced accurately by inducing discharge to the first and second discharge electrodes and detecting the discharge by the discharge detection sensor.

In addition, the present invention is provided so that the discharge detection sensor is wrapped in the case member without being exposed to the outside, it is possible to prevent the malfunction due to the exposure of sunlight and the accumulation of foreign matter.

In addition, the present invention can form a molding member around the case member to effectively protect the discharge detection sensor in the event of flashover.

In addition, the present invention can easily perform the installation operation of the flashover detection device by coupling the support member connected to the second discharge electrode to the insulator arcing horn using a coupling member.

1 is an installation state diagram of a flashover detection device in the built-in insulator device according to an embodiment of the present invention,
2 is an installation state diagram of a flashover detection device in a suspension-type insulator device according to an embodiment of the present invention;
3 is an exploded perspective view of a flashover detection device according to an embodiment of the present invention;
Figure 4 is a side view showing a cut state of the flashover detection device according to an embodiment of the present invention,
5 is an enlarged side cross-sectional view of a flashover detection device according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view taken along the line “AA” of FIG. 4.

Hereinafter, a flashover detection device according to an embodiment of the present invention will be described with reference to the accompanying drawings.

In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

1 is a diagram illustrating a flashover detection device installed in a built-in insulator according to an embodiment of the present invention, FIG. 2 is a diagram illustrating a flashover detection device installed in a suspension insulator device according to an embodiment of the present invention. 4 is an exploded perspective view of a flashover detection device according to an embodiment of the present invention, Figure 4 is a side view showing a cut-off state of the flashover detection device according to an embodiment of the present invention, Figure 5 is a flashover according to an embodiment of the present invention An enlarged side cross-sectional view of the detection device, and FIG. 6 is a cross-sectional view taken along the line “AA” of FIG. 4.

1 to 6, the flashover detection device 1 according to an embodiment of the present invention includes a support member 10, an arcing horn 20 for detection, a discharge part 30, and a molding member 40. , The discharge detection sensor 50 is made.

Fig. 1 shows a state in which the flashover detection device 1 of the present invention is provided in a built-in insulator. The flashover detection device 1 of the present invention is located at an upper side of at least one end of the insulator 2 arranged horizontally. It is mounted to the inking arcing horn 4 formed by bending.

Fig. 2 shows a state in which the flashover detection device 1 of the present invention is provided in a suspension insulator. The flashover detection device 1 of the present invention is mounted on the insulator arcing horn 4 formed by bending at least one side from the upper side of the insulator 2.

Although the flashover detection device 1 of the present invention is not shown in the drawing, in another embodiment, the inking arcing horn 4 is not mounted to the insulator arcing horn 4 by the coupling member 60 to be described later. It may be used directly mounted on the upper end of the insulator 2, which was the seat. In this case, since the existing inking horn 4 does not have to be provided, the number of parts is reduced.

Hereinafter, the flashover detection device 1 of the present invention will be shown in a state where it is mounted on the insulator arcing horn 4.

The support member 10 serves as a support that is connected to the transmission line insulator 2 or the insulator arcing horn 4.

The support member 10 may be directly provided at one end of the upper side or the left and right sides of the insulator 2 for the transmission and distribution line. The support member 10 may be fixed to the insulator arcing horn 4 by welding or may be mounted to the insulator arcing horn 4 by a coupling member 60 to be described later.

In the drawings of the present invention, the support member 10 is illustrated in a bent state, but may be configured in various other forms.

The support member 10 may be installed on the inking arcing horn 4 by the coupling member 60.

The coupling member 60 includes a first coupling member 62, a second coupling member 68, and a fastening member 74.

The first coupling member 62 is provided at the end of the support member 10 and the first semicircular groove 64 is formed to surround one side of the insulator arcing horn 4.

First flange portions 66 may be formed at both edges of the first semicircular groove 64.

The second coupling member 68 is disposed to correspond to the first coupling member 62 and the second semicircular groove 70 is formed to surround the other side of the insulator arcing horn 4.

Second flange portions 72 may be formed at both edges of the second semicircular groove 70.

The first flange portion 66 and the second flange portion 72 are formed in the same shape to be interviewed with each other.

The fastening member 74 is fastened through the first flange portion 66 of the first coupling member 62 and the second flange portion 72 of the second coupling member 68 to thereby fasten the first coupling member 62. And the second coupling member 68 are coupled to each other.

Although the fastening member 74 is shown with bolts and nuts, it is possible to apply screws or other mechanical fastening elements.

The insulator 2 is disposed between the electrodes to serve as an insulating material,

The insulator arcing horn 4 is a metal rod provided to keep the arc generated by the lightning from the insulator 2 to prevent and protect the insulator 2 from lightning.

The detection arcing horn 20 is configured to induce a flashover occurring near the transmission line.

In this drawing, the detection arcing horn 20 is illustrated in a similar form to the insulator arcing horn 4, but may be formed in various other shapes as necessary.

At the free end of the detection arcing horn 20, a bent portion 22 which is bent at a set angle θ is formed. The bent portion 22 is a rounded portion that interconnects a portion where the detection arcing horn 20 is connected in a straight line. The set angle θ may be made larger than 0 degrees and smaller than 180 degrees.

Discharge part 30 is provided in each of the detection arcing horn 20 and the support member 10, and induces discharge through flashover to generate light. Here, the light refers to the flash which induces flashover and occurs intensely instantaneously. Hereinafter, the flash is referred to as light.

The discharge detection sensor 50 is provided in the discharge unit 30 and is configured to detect light generated by the discharge unit 30.

The discharge unit 30 is disposed to have a predetermined interval between the first discharge electrode 32 and the first discharge electrode 32 formed at the end of the detection arcing horn 20, and at the end of the support member 10. And a case member 36 formed to have a space therein while surrounding the outside of the second discharge electrode 34 and the first and second discharge electrodes 32 and 34 and the discharge detection sensor 50. do.

The first and second discharge electrodes 32 and 34 are formed in a spherical shape having a larger diameter than the cross-sectional diameters of the detection arcing horn 20 and the support member 10.

The first and second discharge electrodes 32 and 34 are spaced apart so that the flashovers have a gap enough to generate flashes so as to detect the occurrence of flashover or reverse flashover to the extent that the insulator 2 is broken.

The case member 36 plays a role of helping to generate a discharge in the first and second discharge electrodes 32 and 34 during flashover.

The case member 36 may have a cylindrical shape in which both surfaces thereof are blocked, and may be formed of a glass discharge tube.

The inside of the case member 36 may be a vacuum tube having a vacuum state, of course, the inside of the case member 36 may be filled with air.

When the inside of the case member 36 is a vacuum, the oxidation of the first and second discharge electrodes 32 and 34 can be reduced, but the light between the first and second discharge electrodes 32 and 34 can be reduced. Glare) is not good. In order to solve this problem, although the first and second discharge electrodes 32 and 34 are well oxidized, the air may be charged to generate light (flash).

The molding member 40 is provided outside the discharge part 30 to protect the discharge part 30. The molding member 40 is an epoxy, and the molding member 40 is formed by supplying the epoxy to the outside of the discharge unit 30 and molding. Of course, the molding member 40 may apply other types of synthetic resin.

The molding member 40 is thickly formed in the entire circumference of the case member 36 to protect it from damage when lightning strikes the case member 36 of the discharge part 30. The molding member 40 may prevent the object moving by the strong wind or the flying bird, etc. from being damaged by hitting the discharge unit 30.

The discharge detection sensor 50 is preferably disposed on the side surface of the center between the first and second discharge electrodes 32 and 34. Of course, as long as the light generated from the first and second discharge electrodes 32 and 34 can be detected well, it may be provided at any position.

The discharge detection sensor 50 may be an optical fiber sensor that detects light generated during discharge.

The discharge detection sensor 50 is attached to the inner circumferential surface of the case member 36 and disposed vertically, and disposed in a circumferential shape so that the upper end thereof faces the first and second discharge electrodes 32 and 34.

In addition, a wire 52 is connected to the lower side of the discharge detection sensor 50 to move through the case member 36 to penetrate the side surface and to be led out through the molding member 40.

The signal detected by the discharge detection sensor 50 is transmitted to the outside through the wire 52, is converted into an electrical signal in the detection signal conversion unit 80 is sent out wirelessly from the transmission unit 90, this radio signal transmitted electric Received by the receiver 100 to determine the flashover position.

The detection signal converter 80 is a device including a photo transistor or a diode, and converts the light detection signal into an electrical signal using the photo transistor.

The transmission unit 80 may be provided with a wireless location tracker in each transmission tower is installed so that the insulator transmits the unique number of the transmission tower with the electrical signal.

The transmitter 80 may be a GPS satellite and a mobile communication base station.

The receiving unit 90 may track the position of the transmission tower where the flashover occurred using the electric signal transmitted from the transmission unit 80 and the unique number of the transmission tower on which the flashover occurred, and use the same to quickly damage a site of insulator or insulator Repair work can be performed.

Receiving unit 90 may be a web (Web) and mobile (Mobile), allowing the operator to quickly identify the damage location from time to time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of protection of the present invention should be defined by the following claims.

1: flashover detection device 2: insulator
4: inking arch 10: support member
20: arcing horn for detection 22: bend
30: discharge portion 32: first discharge electrode
34: second discharge electrode 36: case member
40: molding member 50: discharge detection sensor
52: wire 60: coupling member
62: first coupling member 68: second coupling member
74: fastening member 80: detection signal conversion unit
90 transmitter 100 receiver

Claims (12)

A support member connected to the insulator or insulator arcing horn of the transmission and distribution line;
An arcing horn for detecting induction of flashover occurring in the transmission line;
A discharge unit provided in each of the detection arcing horn and the support member to generate light by inducing discharge through the flashover; And
A discharge detection sensor provided in the discharge unit and detecting light generated by the discharge unit; Flashover detection device comprising a.
The method according to claim 1,
And a bent portion bent at a set angle (θ) at a free end of the detection arcing horn.
The method according to claim 1,
The discharge unit
A first discharge electrode formed at an end of the detection arcing horn;
A second discharge electrode disposed on the first discharge electrode at a predetermined interval and provided at an end of the support member; And
And a case member formed to have a space therein while surrounding the outside of the first and second discharge electrodes and the discharge detection sensor.
The method of claim 3,
And the first and second discharge electrodes are formed in a spherical shape having a diameter larger than that of the detection arc and the support member.
The method of claim 3,
The case member has a cylindrical shape in which both sides are blocked, and the flashover detection device, characterized in that the discharge tube made of glass.
The method of claim 3,
The inside of the case member is a flashover detection device, characterized in that the form of a vacuum tube having a vacuum state.
The method of claim 3,
The discharge detection sensor is disposed on the side of the center between the first, second discharge electrode,
The discharge detection sensor is a flashover detection device, characterized in that the optical fiber sensor for detecting the light generated during the discharge.
The method according to claim 3 or 7,
The signal detected by the discharge detection sensor is transmitted to the outside through a wire, converted into an electrical signal in the detection signal conversion unit and sent out wirelessly, and receives the radio transmitted electrical signal at the receiver to determine the flashover position Flashover detection device.
8. The method according to any one of claims 1 to 7,
Flashing detection device, characterized in that the outer side of the discharge portion is provided with a molding member for protecting the discharge portion.
10. The method of claim 9,
Flashing detection device, characterized in that the molding member is epoxy.
The method according to claim 1,
The support member is a flashover detection device, characterized in that the coupling member is installed on the inking horn.
12. The method of claim 11,
The coupling member
A first coupling member provided at an end of the support member and formed with a first semicircular groove to surround one side of the inking arcing horn;
A second coupling member disposed to correspond to the first coupling member, and having a second semicircular groove formed to surround one side of the arcing horn for the insulator; And
And a fastening member for connecting and coupling the flange portion of the first coupling member and the second coupling member.

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