CN210628068U - Real-time online hot spot detection device of air-core reactor - Google Patents
Real-time online hot spot detection device of air-core reactor Download PDFInfo
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- CN210628068U CN210628068U CN201921569502.0U CN201921569502U CN210628068U CN 210628068 U CN210628068 U CN 210628068U CN 201921569502 U CN201921569502 U CN 201921569502U CN 210628068 U CN210628068 U CN 210628068U
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Abstract
A real-time online hot spot detection device for an air reactor comprises an air reactor winding, wherein the air reactor winding is formed by connecting a plurality of envelopes in parallel, a plurality of supporting strips are connected between every two adjacent envelopes, a heat dissipation air passage is formed between every two adjacent envelopes, each envelope and the adjacent supporting strips form a winding, each envelope and the adjacent supporting strips are connected in parallel to form a coil, an upper wire outlet arm and a lower wire outlet arm are respectively arranged at the upper end and the lower end of the coil, and the winding, the upper wire outlet arm and the lower wire outlet arm form an air reactor coil; and a temperature probe is arranged at the height position of each encapsulated hot point, and an energy-taking coil is arranged at the upper part of the air reactor winding. The detection device of the utility model effectively solves the power problem of real-time online detection of the high-voltage end detection equipment of the high-voltage air-core reactor, and compared with other detection power sources, the detection device is maintenance-free, long in service life and high in power; meanwhile, the protection problem of the air reactor is effectively solved through hot spot real-time online detection, fault points can be effectively and timely found, the accident rate is reduced, and the reliability of the system is improved.
Description
Technical Field
The utility model relates to an electric power system field, in particular to real-time online hot spot detection device of air-core reactor.
Background
Chinese patent document No. CN206250031U discloses a multi-tap epoxy cast air reactor in 2017, 6 months and 13 days, which includes: the outer cylinder comprises an outer cylinder body, an opening part is arranged on the outer cylinder body along the axial direction of the outer cylinder body, a limiting part is arranged on the opening part of the outer cylinder body in an extending mode, and epoxy resin is filled in the outer cylinder; the insulating inner cylinder is sleeved in the outer cylinder body and is coaxially arranged; the multi-turn coil is sleeved on the insulating inner cylinder and is arranged in a stacked mode along the axial direction of the insulating inner cylinder, and a tap of the multi-turn coil penetrates through the opening part of the outer cylinder body; and the insulating cushion block is arranged between any two adjacent coils, and a connecting piece is arranged between the insulating cushion block and the insulating inner cylinder. The air reactor is insulated by resin, so that the air reactor has poor weather resistance and high failure rate; moreover, due to the peculiar multi-branch parallel structure of the air reactor, the traditional relay protection mode cannot effectively protect, the hot point temperature rise detection is the most effective monitoring method at present, the real-time online detection at the high-voltage end is always a difficult point for detecting the power supply, and the existing battery power supply mode has the defects of overhigh environmental temperature of the battery, short service life, frequent replacement, large replacement workload, high use cost, overhigh environmental temperature of the detection device, high manufacturing cost and limited reliability, and simultaneously influences the utilization rate of the air reactor.
Therefore, further improvements are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a simple structure, the fault rate is low, application range is wide, the real-time online hot spot detection device of air core reactor that the practicality is strong to overcome the weak point among the prior art.
The air reactor real-time online hot spot detection device designed according to the purpose comprises an air reactor winding and is characterized in that: the air reactor winding is formed by connecting a plurality of envelopes in parallel, a plurality of supporting strips are connected between every two adjacent envelopes, a heat-radiating air passage is formed between every two envelopes through the supporting strips, each envelope and the adjacent supporting strips form a winding, the envelopes are connected in parallel to form a coil, an upper wire outlet arm and a lower wire outlet arm are respectively arranged at the upper end and the lower end of the coil, and the winding, the upper wire outlet arm and the lower wire outlet arm form an air reactor coil; and a temperature probe is arranged at the height position of each encapsulated hot point, and an energy-taking coil is arranged at the upper part of the air reactor winding.
The upper outgoing line arm is provided with a detection transmission module, and the energy taking coil, the temperature probe and the detection transmission module form the real-time online hotspot detection device.
The detection transmission module comprises a first submodule, a second submodule and a third submodule, wherein the first submodule is used for rectifying, filtering and stabilizing voltage of the energy taking coil and generating a working power supply of the detection device, the second submodule is used for collecting temperature data of each temperature probe, and the third submodule is used for wirelessly uploading hot spot temperature data.
The energy taking coil is an air coil and is arranged on the upper wire outlet arm.
The outer diameter and the height of the energy-taking coil are both less than or equal to 100 mm.
The energy taking coil and the air reactor are in electromagnetic coupling.
And the upper outgoing line arm and the lower outgoing line arm are respectively provided with an incoming and outgoing line connecting terminal.
The utility model discloses a real-time online hot spot detection device of air reactor has solved the power problem of high-pressure air reactor high-pressure side check out test set real-time online detection effectively, compares other detection power, and non-maintaining, longe-lived, power is big, does not influence the rate of utilization of air reactor; meanwhile, the protection problem of the air reactor is effectively solved through hot spot real-time online detection, fault points can be effectively and timely found, the accident rate is reduced, the reliability of the system is improved, and the air reactor protection system has the advantages of being simple in structure, low in fault rate, wide in application range and high in practicability.
Drawings
Fig. 1 is a top view of an embodiment of the present invention, which is an apparatus for detecting a real-time online hot spot of an air-core reactor.
Fig. 2 is a front view of the real-time online hot spot detection device of the air-core reactor in an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to fig. 1 and 2, the real-time online hot spot detection device for the air reactor comprises an air reactor winding 5, wherein the air reactor winding 5 is formed by connecting a plurality of envelopes 1 in parallel, a plurality of supporting bars 2 are connected between every two adjacent envelopes 1, a heat dissipation air passage is formed between every two adjacent envelopes 1 through the supporting bars 2, each envelope 1 and the adjacent supporting bar 2 form a winding, each envelope 1 is connected in parallel to form a coil, an upper wire outlet arm 3 and a lower wire outlet arm 8 are respectively arranged at the upper end and the lower end of the coil, and the winding, the upper wire outlet arm 3 and the lower wire outlet arm 8 form an air reactor coil; a temperature probe 6 is arranged at the height position of a hot spot of each packaging 1, and an energy-taking coil 7 is arranged at the upper part of the air-core reactor winding 5. The air-core reactor winding 5 is an electric multi-branch circuit, a parallel structure is adopted among all branch circuits, the winding layers are axially connected in parallel to form winding packages 1, the winding packages 1 are connected in parallel to form coils, all parallel branch circuits converge to the wire outlet arms at the upper end and the lower end of each coil, and the end voltage of the reactor is distributed between the upper wire outlet arm 3 and the lower wire outlet arm 8; the heat productivity, the heat dissipation area and the heat dissipation condition of each package 1 are different, and the average temperature rise and the hot spot temperature rise of each package 1 are different.
The upper outgoing line arm 3 is provided with a detection transmission module 4, and the energy-taking coil 7, the temperature probe 6 and the detection transmission module 4 form the real-time online hotspot detection device.
The detection transmission module 4 comprises a first submodule, a second submodule and a third submodule, wherein the first submodule is connected with an energy-taking power supply, overshoots are inhibited on the power supply provided by the energy-taking coil 7, and then rectification, filtering and voltage stabilization are carried out to form a stable direct-current working power supply; the second submodule is used for acquiring temperature data of each temperature probe 6, and the third submodule is used for processing hotspot temperature data in real time and uploading the hotspot temperature data in a wireless mode in real time.
The energy-taking coil 7 is an air core coil and is arranged on the upper wire outlet arm 3, and the energy-taking coil 7 provides measurement and signal transmission power for the device and can provide 200W alternating current power.
The outer diameter and the height of the energy-taking coil 7 are both less than or equal to 100 mm.
The energy-taking coil 7 and the air reactor are in electromagnetic coupling and generate induced potential, a stable direct-current detection power supply is generated in the detection transmission module 4, the energy-taking coil 7 and the detection transmission module 4 are both arranged at the position where the temperature of the upper wire outlet arm 3 is lower, and the whole real-time online detection device is low in manufacturing cost, free of maintenance, high in reliability, large in data transmission range, small in operation and maintenance workload and low in operation and maintenance cost.
The upper outgoing line arm 3 and the lower outgoing line arm 8 are respectively provided with an incoming and outgoing line connecting terminal.
The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a real-time online hot spot detection device of air-core reactor, includes air-core reactor winding (5), its characterized in that: the air reactor winding (5) is formed by connecting a plurality of envelopes (1) in parallel, a plurality of supporting strips (2) are connected between every two adjacent envelopes (1), a heat dissipation air passage is formed between every two envelopes (1) through the supporting strips (2), each envelope (1) and the adjacent supporting strips (2) form a winding, the envelopes (1) are connected in parallel to form a coil, the upper end and the lower end of the coil are respectively provided with an upper wire outlet arm (3) and a lower wire outlet arm (8), and the winding, the upper wire outlet arm (3) and the lower wire outlet arm (8) form an air reactor coil; a temperature probe (6) is arranged at the height position of a hot point of each envelope (1), and an energy-taking coil (7) is arranged at the upper part of the air-core reactor winding (5).
2. The air reactor real-time online hot spot detection device according to claim 1, characterized in that: the upper outgoing line arm (3) is provided with a detection transmission module (4), and the energy-taking coil (7), the temperature probe (6) and the detection transmission module (4) form the real-time online hot spot detection device.
3. The air reactor real-time online hot spot detection device according to claim 2, characterized in that: the detection transmission module (4) comprises a first submodule, a second submodule and a third submodule, wherein the first submodule is used for rectifying, filtering and stabilizing voltage of the energy taking coil and generating a working power supply of the detection device, the second submodule is used for collecting temperature data of each temperature probe (6), and the third submodule is used for wirelessly uploading hot spot temperature data.
4. The air reactor real-time online hot spot detection device according to claim 1, characterized in that: the energy taking coil (7) is an air coil and is arranged on the upper wire outlet arm (3).
5. The air reactor real-time online hot spot detection device according to claim 4, characterized in that: the outer diameter and the height of the energy-taking coil (7) are both less than or equal to 100 mm.
6. The air reactor real-time online hot spot detection device according to claim 5, characterized in that: the energy taking coil (7) and the air reactor are in electromagnetic coupling.
7. The air reactor real-time online hot spot detection device according to any one of claims 1 to 6, characterized in that: and the upper outgoing line arm (3) and the lower outgoing line arm (8) are respectively provided with an incoming and outgoing line wiring terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921569502.0U CN210628068U (en) | 2019-09-19 | 2019-09-19 | Real-time online hot spot detection device of air-core reactor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921569502.0U CN210628068U (en) | 2019-09-19 | 2019-09-19 | Real-time online hot spot detection device of air-core reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600244A (en) * | 2019-09-19 | 2019-12-20 | 顺特电气设备有限公司 | Real-time online hot spot detection device of air-core reactor |
| CN112331464A (en) * | 2020-09-30 | 2021-02-05 | 国网上海市电力公司 | Temperature detection device and method for dry-type air-core reactor |
-
2019
- 2019-09-19 CN CN201921569502.0U patent/CN210628068U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110600244A (en) * | 2019-09-19 | 2019-12-20 | 顺特电气设备有限公司 | Real-time online hot spot detection device of air-core reactor |
| CN112331464A (en) * | 2020-09-30 | 2021-02-05 | 国网上海市电力公司 | Temperature detection device and method for dry-type air-core reactor |
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