CN217467064U - Ultrahigh frequency partial discharge and fault distance measuring device for cable joint of current collecting line of wind power plant - Google Patents
Ultrahigh frequency partial discharge and fault distance measuring device for cable joint of current collecting line of wind power plant Download PDFInfo
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- CN217467064U CN217467064U CN202122769823.9U CN202122769823U CN217467064U CN 217467064 U CN217467064 U CN 217467064U CN 202122769823 U CN202122769823 U CN 202122769823U CN 217467064 U CN217467064 U CN 217467064U
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- inductor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The utility model belongs to the technical field of the cable technology and specifically relates to a wind-powered electricity generation field current collection circuit cable joint superfrequency office is put and trouble range unit, which comprises a terminal, a plurality of wiring mouths at terminal all are connected with mutual-inductor coaxial cable, and are a plurality of mutual-inductor coaxial cable is connected with a plurality of temperature transformer respectively, and is a plurality of temperature transformer's surface all has current transformer through the mounting screw, current transformer's both ends wiring mouth all is connected with the superfrequency office and puts mutual-inductor antenna. The scheme mainly adopts the traveling wave method to realize fault location, adopts an online fault location method, and the fault location method is not influenced by the operation mode of a system, and can realize fault location of the whole line of the cable only by installing the device on the cable terminal head.
Description
Technical Field
The utility model relates to the technical field of cables, especially, relate to a wind-powered electricity generation field current collection circuit cable joint superfrequency office puts and trouble range unit.
Background
In recent years, clean energy is vigorously developed all over the world, and wind energy and photovoltaic power generation become important pillars of the clean energy. Regarding cable fault, traditional power cable fault monitoring device is all through the realization power cable fault monitoring of off-line formula, all wait until the cable has taken place the trouble after, thereby carry out the fault location that the cable was dismantled again and realized the cable, and this type of fault location can't realize the hidden danger discharge monitoring of cable. Regarding cable hidden danger monitoring, the traditional cable hidden danger monitoring realizes partial discharge monitoring through light, heat and electromagnetic waves, and mainly carries out fault monitoring through photons generated by joint discharge of a cable, cable circulation magnitude and ultrahigh frequency traveling waves, the methods can only realize weak monitoring, especially the ultrahigh frequency partial traveling waves, the cable partial discharge traveling waves have high frequency and short discharge time which are generally more than 500Hz, on one hand, the precision of the existing mutual inductor cannot be achieved, and on the other hand, the partial discharge monitoring terminal cannot capture current with too short discharge time, so that the partial discharge monitoring of the ultrahigh frequency cable joint cannot be realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the shortcoming that exists among the prior art, and the very high frequency office of a wind-powered electricity generation field current collection circuit cable joint put and trouble range unit that proposes.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a wind-powered electricity generation field current collection line cable joint superfrequency office is put and trouble range unit, includes the terminal, a plurality of wiring mouths at terminal all are connected with mutual-inductor coaxial cable, and are a plurality of mutual-inductor coaxial cable is connected with a plurality of temperature transformer respectively, and is a plurality of temperature transformer's surface all has current transformer through the mounting screw, current transformer's both ends wiring mouth all is connected with the superfrequency office and puts mutual-inductor antenna, the superfrequency office is put mutual-inductor antenna and is passed through the mounting screw on temperature transformer's surface.
Preferably, the circuit board of the terminal is connected with a positioning module, and the positioning module is a Beidou positioner or a GPS positioner.
Preferably, the side surface of the shell of the temperature transformer is arc-shaped.
Preferably, the temperature transformer is mounted on the surface of the cable through a clamp.
Preferably, the plurality of temperature transformers are arranged in a staggered manner.
Compared with the prior art, the utility model discloses following beneficial effect has:
the scheme mainly adopts the traveling wave method for fault location, and adopts an online fault location method, and the fault location method is not influenced by the operation mode of the system, and can realize fault location of the whole cable line only by installing the device on a cable terminal head.
Drawings
Fig. 1 is an axonometric view of the ultrahigh frequency partial discharge and fault location device for the cable joint of the collecting line of the wind farm of the utility model;
FIG. 2 is a schematic view of the connection structure of the temperature transformer and the current transformer of the device for ultrahigh frequency partial discharge and fault location of the cable joint of the wind power plant collecting line of the present invention;
FIG. 3 is a schematic diagram of the ultrahigh frequency partial discharge and fault location device and current connection for the cable joint of the wind power plant collecting line of the present invention;
in the figure: the terminal comprises a terminal 1, a transformer coaxial cable 2, a temperature transformer 3, a current transformer 4, an ultrahigh frequency partial discharge transformer antenna 5 and a cable 6.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments described below are by way of example only, and other obvious variations will occur to those skilled in the art.
The ultrahigh frequency partial discharge and fault location device for the cable joint of the wind power plant collecting line shown in the figures 1-3 comprises a terminal 1, wherein a circuit board of the terminal 1 is connected with a positioning module, and the positioning module is a Beidou positioner or a GPS positioner. The cable fault location marking device is used for marking the cable fault location and is convenient for the troubleshooting work of workers.
A plurality of wiring ports of terminal 1 all are connected with mutual-inductor coaxial cable 2, and a plurality of mutual-inductor coaxial cable 2 are connected with a plurality of temperature transformer 3 respectively, and current transformer 4 is all installed through the screw on a plurality of temperature transformer 3's surface, and current transformer 4's both ends wiring port all is connected with superfrequency office discharge mutual-inductor antenna 5, and superfrequency office discharge mutual-inductor antenna 5 passes through the screw installation on temperature transformer 3's surface. The side surface of the shell of the temperature mutual inductor 3 is arc-shaped. The area of the external contact between the temperature transformer 3 and the cable 6 is increased, and the stability of the temperature transformer 3 placed on the cable 6 is improved. The temperature transformer 3 is mounted on the surface of the cable 6 by a clamp. The clamp is used for improving the stability of the connection between the temperature transformer 3 and the cable 6. The plurality of temperature transformers 3 are arranged in a staggered manner. The plurality of temperature transformers 3 are conveniently arranged outside the plurality of cables 6 in a distributed manner. The current transformer 4 monitors the load condition of the cable 6, and the temperature transformer 3 monitors the temperature of the insulating layer of the cable 6. The ultrahigh frequency partial discharge mutual inductor antenna 5 performs comprehensive evaluation through multiple directions of ultrahigh frequency partial discharge frequency bands, discharge directivity and sensor sensitivity, and further promotes partial discharge monitoring of cable joints. The scheme combines a high-precision GPS to position the cable line fault place, and is convenient for the operation of workers.
The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a wind-powered electricity generation field current collection circuit cable joint superfrequency office is put and trouble range unit, includes terminal (1), its characterized in that, a plurality of wiring mouths of terminal (1) all are connected with mutual-inductor coaxial cable (2), and are a plurality of mutual-inductor coaxial cable (2) are connected with a plurality of temperature transformer (3) respectively, and are a plurality of current transformer (4) are all installed through the screw on the surface of temperature transformer (3), mutual-inductor antenna (5) are put in superfrequency office all being connected with superfrequency office to the both ends wiring mouth of current transformer (4), superfrequency office is put mutual-inductor antenna (5) and is passed through the surface of mounting screw at temperature transformer (3).
2. The ultrahigh frequency partial discharge and fault location device for the cable joint of the collecting line of the wind farm according to claim 1, characterized in that a positioning module is connected to a circuit board of the terminal (1), and the positioning module is a Beidou positioner or a GPS positioner.
3. The device for ultrahigh-frequency partial discharge and fault location of the cable joint of the wind power plant collecting line according to claim 1, characterized in that the side surface of the shell of the temperature mutual inductor (3) is arc-shaped.
4. The device for ultrahigh frequency partial discharge and fault location of cable joints of wind power plant collecting lines according to claim 1, characterized in that the temperature mutual inductor (3) is installed on the surface of the cable (6) through a clamp.
5. The device for ultrahigh frequency partial discharge and fault location of cable joints of wind power plant collecting lines according to claim 1, characterized in that the plurality of temperature transformers (3) are arranged in a staggered manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122769823.9U CN217467064U (en) | 2021-11-12 | 2021-11-12 | Ultrahigh frequency partial discharge and fault distance measuring device for cable joint of current collecting line of wind power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122769823.9U CN217467064U (en) | 2021-11-12 | 2021-11-12 | Ultrahigh frequency partial discharge and fault distance measuring device for cable joint of current collecting line of wind power plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217467064U true CN217467064U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122769823.9U Active CN217467064U (en) | 2021-11-12 | 2021-11-12 | Ultrahigh frequency partial discharge and fault distance measuring device for cable joint of current collecting line of wind power plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217467064U (en) |
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2021
- 2021-11-12 CN CN202122769823.9U patent/CN217467064U/en active Active
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