CN213689898U - Integrated DC lightning arrester on-line monitor - Google Patents
Integrated DC lightning arrester on-line monitor Download PDFInfo
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- CN213689898U CN213689898U CN202021981541.4U CN202021981541U CN213689898U CN 213689898 U CN213689898 U CN 213689898U CN 202021981541 U CN202021981541 U CN 202021981541U CN 213689898 U CN213689898 U CN 213689898U
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- arrester
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- lightning arrester
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Abstract
The utility model discloses an integrated online monitor of a direct current arrester, which comprises a shell, a base and a monitoring module; the lightning arrester comprises a shell, a lightning arrester umbrella skirt is arranged in the shell, one end of the lightning arrester umbrella skirt is connected with the shell, the other end of the lightning arrester umbrella skirt is connected with a monitoring module, and a base is arranged at the bottom of the monitoring module; the monitoring module comprises a circuit board and a power supply, the circuit board is electrically connected with the power supply, and the circuit board is also electrically connected with the detection assembly. The utility model discloses an arrester monitor is as an organic whole with the arrester installation, and the monitoring is convenient to monitoring module and first electrode, second electrode and valve block lug connection increase area of contact reduce the distance of monitoring module and first electrode, second electrode and valve block, and the monitoring accuracy is high.
Description
Technical Field
The utility model belongs to the technical field of the arrester monitoring, concretely relates to direct current arrester on-line monitoring appearance of integral type.
Background
At present, the requirements of rail transit industry are very large, and in the past, domestic manufacturers in China have limited capability in the aspects of rail transit direct current arresters and other core components, so that products which really meet the requirements of rail transit systems cannot be manufactured for a long time, and only a large number of products which are imported from foreign countries can be relied on. Meanwhile, products in the current market cannot completely meet the requirements of users, the use is inconvenient, the delivery period is long, the price is high, and it is very necessary to develop a set of products meeting the requirements of the users.
The performance of a zinc oxide arrester directly influences the safe operation of an electric power system, when the zinc oxide arrester (MOA) is in actual operation, after internal aging and moisture, resistive current can be greatly increased, the temperature of a valve plate of the zinc oxide arrester is increased, once overvoltage is generated in the system, the arrester can be thermally collapsed and even the arrester explodes, so that the arrester loses the protection effect, the aging of the MOA arrester is not enough by one-year pre-test, even if the qualified MOA arrester in the pre-test is possible to be broken down and damaged in the operation, the protection characteristic is reduced, extremely serious consequences can be generated, and the operation state of the arrester needs to be monitored on line to ensure the safe operation of the MOA arrester.
The arrester monitor of prior art is connected with the arrester through the wiring, can have line contact failure or wiring troublesome, and the monitoring accuracy reduces, for this reason the utility model provides a direct current arrester on-line monitoring appearance of integral type.
Disclosure of Invention
The utility model discloses the direct current arrester on-line monitoring appearance of integral type is as an organic whole with arrester on-line monitoring appearance and arrester lug connection, has reduced the distance of monitoring module with the arrester, has also avoided the circuit contact failure, and the monitoring is swift, and the accuracy is high.
The technical scheme of the utility model is that: an integrated online monitor for a direct current arrester comprises a shell, a base and a monitoring module;
the lightning arrester comprises a shell, a lightning arrester umbrella skirt is arranged in the shell, one end of the lightning arrester umbrella skirt is connected with the shell, the other end of the lightning arrester umbrella skirt is connected with a monitoring module, and a base is arranged at the bottom of the monitoring module;
the monitoring module comprises a circuit board and a power supply, the circuit board is electrically connected with the power supply, and the circuit board is also electrically connected with the detection assembly.
As a further optimization of the scheme, the detection assembly comprises a first electrode and a second electrode, and a valve plate is arranged between the first electrode and the second electrode; an insulating ring is arranged above the detection assembly.
As a further optimization of the scheme, a first fastening piece is connected above the first electrode, one end of the first fastening piece penetrates through the insulating ring to be connected with the first electrode, and the other end of the first fastening piece is fixed with a shed of the lightning arrester.
As a further optimization of the scheme, a gasket is sleeved on the first fastener, and an elastic part is arranged between the gasket and the first electrode; and an insulating ring is sleeved on the periphery of the gasket, which is in contact with the first fastener.
As a further optimization of the scheme, a power supply fixing plate is further arranged in the shell, and one surface of the power supply fixing plate is fixed with the base through a plurality of second fasteners;
the other surface of the power supply fixing plate is connected with the second electrode through a stud, and the stud penetrates through the circuit board.
As a further optimization of the scheme, the shell also comprises a plurality of wiring ports, and the wiring ports are provided with waterproof joint covers.
According to the scheme, the valve plate is a zinc oxide resistance valve plate, the zinc oxide resistance valve plate is connected to a data acquisition module of the lightning arrester, the circuit board further comprises an external signal detection module and a data processing module, the external signal detection module is electrically connected with the data processing module, and the external signal detection module sends lightning stroke impact data and leakage current data output by the data acquisition module to the data processing module.
As a further optimization of the scheme, the online arrester monitor further comprises a wireless communication module or a wired communication module, and the wireless communication module or the wired communication module transmits data to a server or a receiving device.
Compared with the prior art, the utility model, beneficial effect is:
1. the utility model discloses an arrester monitor is as an organic whole with the arrester installation, and the monitoring is convenient to monitoring module and first electrode, second electrode and valve block lug connection increase area of contact reduce the distance of monitoring module and first electrode, second electrode and valve block, and the monitoring accuracy is high.
2. The utility model discloses an arrester monitor passes through zinc oxide resistance valve block and is connected with the data acquisition module of arrester, and data acquisition module and external signal detection module are connected, can the real-time supervision leak current condition and the action number of times of arrester, judge whether zinc oxide resistance valve block is ageing according to the action number of times of leaking current and arrester, damage etc. for overhauing and examining and repair the frequency and provide the reference foundation.
3. The utility model discloses connect through the double-screw bolt between power fixed plate and the determine module, it is all very convenient to install and dismantle, has both played the effect of support, plays the effect of connecting again, and the double-screw bolt can also be connected the electricity between circuit board and the determine module.
4. The utility model discloses the full skirt junction of arrester monitoring module and arrester is equipped with the spring and both can electrically conduct, can the shock attenuation again.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view in the direction a-a of the present invention;
in the figure: 1-shell, 2-first fastener, 3-shed, 4-insulating ring, 5-first electrode, 6-second electrode, 7-valve plate, 8-gasket, 9-circuit board, 10-power supply, 11-power supply fixing plate, 12-base, 13-spring, 14-second fastener and 15-wiring port.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
as shown in fig. 1 and 2, an integrated dc arrester on-line monitor includes a housing 1, a base 12 and a monitoring module; the shell 1 comprises a detection assembly, one end of the detection assembly is connected with the lightning arrester umbrella skirt 3, the other end of the detection assembly is connected with the monitoring module, and the bottom of the monitoring module is a base;
the monitoring module comprises a circuit board 9 and a power supply 10, the circuit board 9 is electrically connected with the power supply 10, and the circuit board 9 is also electrically connected with the detection assembly.
The valve plate bears the effect of the voltage of the power system for a long time in normal operation, leakage current continuously flows through each zinc oxide resistor plate connected in series of the lightning arrester, and the influence of factors such as internal moisture or overheating can cause the degradation of the nonlinear resistance characteristic of the valve plate, which is mainly reflected in that the resistive current under normal voltage is increased, the increase of the resistive current causes the increase of heat productivity, the temperature of the lightning arrester is increased, and then the lightning arrester is aged and damaged, so the leakage current of the lightning arrester is monitored as an important means for monitoring the health condition of the lightning arrester.
Through above-mentioned scheme, the detection module is as the important subassembly that gets up monitoring module and arrester full skirt lug connection, realizes that the integration of arrester and arrester monitor is connected, and the monitoring is convenient to monitoring module and detection module lug connection increase area of contact, reduce monitoring module and detection module's distance, the monitoring accuracy is high.
Preferably, the detection assembly comprises a first electrode 5 and a second electrode 6, and a valve plate 7 is arranged between the first electrode 5 and the second electrode 6; an insulating ring 4 is arranged above the detection assembly. Wherein the first electrode 5, the second electrode 6 and the insulating ring 4 are connected through a plurality of bolts.
Through the effect of first electrode and second electrode and valve block, the upper end and the high pole or the iron tower of arrester are connected, through the direct and monitoring module lug connection of second electrode, quick convenient monitoring leakage current.
Preferably, a first fastening member 2 is connected above the first electrode, one end of the first fastening member 2 penetrates through the insulating ring 4 to be connected with the first electrode 5, and the other end of the first fastening member is fixed with the umbrella skirt 3 of the lightning arrester. The first fastening piece can be a bolt, and the bolt is made of conductive materials.
Preferably, the first fastening member 2 is sleeved with a gasket 8, an elastic member is arranged between the gasket and the first electrode, and the elastic member can be a spring 13; and an insulating ring is sleeved on the periphery of the gasket 8, which is in contact with the first fastening piece 2.
When overvoltage passes through, the overvoltage is transmitted to the valve plate through the spring through the first fastening piece, then overcurrent grounding is carried out, overvoltage is released, and the safe use of the power distribution equipment is guaranteed, wherein the spring not only has a conductive function, but also plays a role in damping and buffering.
Preferably, a power fixing plate 11 is further arranged in the housing, and one surface of the power fixing plate 11 is fixed with the base 12 through a plurality of second fasteners 14; the other surface of the power fixing plate 11 is connected with the second electrode 6 through a stud, and the stud penetrates through the circuit board 9. The power supply 10 provides electric quantity for the whole monitoring module, the stud is convenient to connect, detach and install, and the stud is a copper stud, so that the circuit board can be electrically connected with the power supply, the detection assembly and the like.
Preferably, the housing 1 further comprises a plurality of wiring ports 15, and the wiring ports 15 are provided with waterproof joint covers. The connection port can satisfy and connect the ground wire, and a plurality of connection ports satisfy multiple demand, and waterproof joint lid can make wiring end dampproofing and waterproofing.
Example 2:
for convenience of understanding, the present embodiment adds the introduction of the control module of the present invention to embodiment 1.
Preferably, the valve plate is a zinc oxide resistance valve plate, the lightning arrester comprises a data acquisition module therein, the zinc oxide resistance valve plate is connected with the data acquisition module of the lightning arrester, the zinc oxide resistance valve plate is connected with a circuit board, the circuit board further comprises an external signal detection module and a data processing module, the external signal detection module is electrically connected with the data processing module, and the external signal detection module sends lightning stroke impact data and leakage current data output by the data acquisition module to the data processing module.
Preferably, the lightning arrester on-line monitor further comprises a wireless communication module or a wired communication module, and the wireless communication module or the wired communication module transmits data to the server or the receiving device.
The data acquisition module in the lightning arrester can carry out peak value and number of times sample to the leakage current of lightning arrester, thunderbolt action current. The data acquisition module is connected with an external signal detection module and a data processing module of the online lightning arrester monitor, so that signals such as leakage current and lightning stroke action current are transmitted to the data processing module through the external signal detection module, the data processing module is connected with a wireless communication module or a wired communication module, the signals are transmitted to a server or a receiving device through the wireless communication module or the wired communication module, and leakage current is monitored in real time.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. An integrated online monitor for a direct current arrester is characterized by comprising a shell, a base and a monitoring module;
the lightning arrester comprises a shell, a lightning arrester umbrella skirt is arranged in the shell, one end of the lightning arrester umbrella skirt is connected with the shell, the other end of the lightning arrester umbrella skirt is connected with a monitoring module, and a base is arranged at the bottom of the monitoring module;
the monitoring module comprises a circuit board and a power supply, the circuit board is electrically connected with the power supply, and the circuit board is also electrically connected with the detection assembly.
2. The integrated online monitor for the direct current arrester as claimed in claim 1, wherein the detection assembly comprises a first electrode and a second electrode, and a valve plate is arranged between the first electrode and the second electrode; an insulating ring is arranged above the detection assembly.
3. The integrated online monitor for the direct current lightning arrester as claimed in claim 2, wherein a first fastening member is connected above the first electrode, one end of the first fastening member passes through the insulating ring to be connected with the first electrode, and the other end of the first fastening member is fixed with a shed of the lightning arrester.
4. The integrated online monitor for the direct current arrester as claimed in claim 3, wherein a gasket is sleeved on the first fastening member, and an elastic member is arranged between the gasket and the first electrode; and an insulating ring is sleeved on the periphery of the gasket, which is in contact with the first fastener.
5. The integrated online monitor for the direct current lightning arrester according to claim 2, wherein a power fixing plate is further arranged in the shell, and one surface of the power fixing plate is fixed with the base through a plurality of second fasteners;
the other surface of the power supply fixing plate is connected with the second electrode through a stud, and the stud penetrates through the circuit board.
6. The integrated online monitor for the direct current lightning arrester as claimed in claim 1, wherein the housing further comprises a plurality of wiring ports, and the wiring ports are provided with waterproof joint covers.
7. The integrated online monitor for the direct current arrester of claim 2, wherein the valve plate is a zinc oxide resistance valve plate, the arrester comprises a data acquisition module therein, the zinc oxide resistance valve plate is connected with the data acquisition module of the arrester, the zinc oxide resistance valve plate is connected with a circuit board, the circuit board further comprises an external signal detection module and a data processing module, the external signal detection module is electrically connected with the data processing module, and the external signal detection module sends lightning strike impact data and leakage current data output by the data acquisition module to the data processing module.
8. The integrated on-line monitoring instrument for the direct current lightning arrester according to any one of claims 1-6, wherein the on-line monitoring instrument for the lightning arrester further comprises a wireless communication module or a wired communication module, and the wireless communication module or the wired communication module transmits data to a server or a receiving device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981541.4U CN213689898U (en) | 2020-09-11 | 2020-09-11 | Integrated DC lightning arrester on-line monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021981541.4U CN213689898U (en) | 2020-09-11 | 2020-09-11 | Integrated DC lightning arrester on-line monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213689898U true CN213689898U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021981541.4U Active CN213689898U (en) | 2020-09-11 | 2020-09-11 | Integrated DC lightning arrester on-line monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213689898U (en) |
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2020
- 2020-09-11 CN CN202021981541.4U patent/CN213689898U/en active Active
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