CN204166070U - Stable type explosion-proof lightning arrester monitor - Google Patents
Stable type explosion-proof lightning arrester monitor Download PDFInfo
- Publication number
- CN204166070U CN204166070U CN201420680516.0U CN201420680516U CN204166070U CN 204166070 U CN204166070 U CN 204166070U CN 201420680516 U CN201420680516 U CN 201420680516U CN 204166070 U CN204166070 U CN 204166070U
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- China
- Prior art keywords
- pedestal
- housing
- lightning arrester
- metal guide
- proof
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Abstract
The utility model discloses a kind of stable type explosion-proof lightning arrester monitor, comprise pedestal, housing, electrical equipment, be provided with insulator above pedestal, housing side is provided with transparent panel, be provided with two metal guide rods in housing, between two metal guide rods, there is discharging gap; Metal guide rod is connected with signal wire, signal wire is connected to measuring instrument in housing, also gland bonnet is provided with in housing, gland bonnet and pedestal connect and compose release of pressure explosion-proof cell, the discharging gap of metal guide rod and composition thereof is arranged in release of pressure explosion-proof cell, be provided with the first ground hole bottom pedestal, middle part connects multiple grounding end, described multiple grounding end is provided with the second ground hole.The high pressure produced in monitor can effectively discharge by the utility model; Meanwhile, by the dual grounds structure on base, overcurrent can be imported underground rapidly, improve the security performance of this monitor, reasonable in design, stable.
Description
Technical field
The utility model belongs to electric equipment protection technical field, is specifically related to a kind of effective raising safety and stability performance and has the lightning arrester monitor of explosion prevention function.
Background technology
Lightning arrester to endanger from high transient overvoltage for the protection of electrical equipment and limits a kind of electrical equipment that time of afterflow also often limits afterflow assignment, is mainly used in electric system the effect played the various electric equipment of protection and impact from lightning surge, switching overvoltage, Frequency Transient Overvoltage and damage.Because the safety of himself performance and electric system is closely bound up, as can not Timeliness coverage degradation lightning arrester and change in time, the major accident such as will cause that large-area power-cuts is even blasted.Lightning arrester in order to Timeliness coverage degradation is convenient to change in time or maintenance, generally adopts in the industry lightning arrester monitor to carry out test constantly to the performance of lightning arrester at present, serves active and effective effect to the accident rate reducing lightning arrester.
The structure of the existing lightning arrester monitor of our company is primarily of the discharging gap of die casting aluminium seat, insulator, metal guide rod and composition thereof, metering circuit and instrument, face glass and seal casinghousing composition.Because lightning arrester monitor is connected between lightning arrester and ground, when lightning arrester broken down short-circuit current flow through time, this short-circuit current flows through lightning arrester on-line monitoring device equally, when larger power current flows through lightning arrester monitor, discharging gap in monitor produces electric arc and metal guide rod combustion melting is produced immense pressure, when pressure increases to certain value in lightning arrester on-line monitoring device, the shell of lightning arrester monitor can be blasted.Therefore we devise release of pressure explosion-proof cell for lightning arrester monitor.But in use find, the less stable of this lightning arrester monitor, be easy to infringement when excessive by electric current, security performance is lower.
Summary of the invention
For solving the problem, the utility model discloses a kind of stable type explosion-proof lightning arrester monitor, the structure of monitor is improved, make super-high-current effectively be discharged by the optimal design of explosion-proof cell and multiple earth structure.
In order to reach above object, the utility model provides following technical scheme:
A kind of stable type explosion-proof lightning arrester monitor, comprise pedestal, the housing be arranged on pedestal, the electrical equipment be arranged in housing, above described pedestal, insulator is installed, described housing side is provided with transparent panel, two metal guide rods are provided with in housing, wherein one is connected with insulator, and another root connects pedestal, has discharging gap between two metal guide rods; Metal guide rod is connected with signal wire, signal wire is connected to measuring instrument in housing, also gland bonnet is provided with in housing, gland bonnet and pedestal connect and compose release of pressure explosion-proof cell, the discharging gap of metal guide rod and composition thereof is arranged in release of pressure explosion-proof cell, be provided with the first ground hole bottom pedestal, middle part connects multiple grounding end, described multiple grounding end is provided with the second ground hole.
Preferably, described second ground hole axis and the first ground hole axes normal.
Preferably, described gland bonnet offers the aperture holding signal wire and pass
Preferably, be provided with pressure release orifice in the middle part of described pedestal, pressure release orifice upper cover has pressure releasing plate.
Preferably, described pedestal is die casting aluminium seat.
Beneficial effect:
Monitor inner high voltage region and electrical equipment can effectively be isolated by gland bonnet design by the utility model, pressure releasing plate can now crush by the pressure produced when monitor being burnt when occurring lightning arrester to damage, and pressure can make monitor internal pressure effectively be discharged from pressure release orifice ejection; Meanwhile, by the dual grounds structure on base, overcurrent can be imported underground rapidly, improve the security performance of this monitor, reasonable in design, stable.
Accompanying drawing explanation
Fig. 1 is stable type explosion-proof lightning arrester monitor external structure schematic diagram;
Fig. 2 is stable type explosion-proof lightning arrester monitor side sectional view.
Reference numerals list:
1-pedestal, 2-housing, 3-electrical equipment, 4-insulator, 5-transparent panel, 6-metal guide rod, 7-release of pressure explosion-proof cell, 8-first ground hole, 9-multiple grounding end, 10-second ground hole, 11-metallic sealed cover, 12-pressure release orifice, 13-pressure releasing plate, 14-signal wire, 15-aperture, 16-groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, illustrate the utility model further, following embodiment should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model.It should be noted that, the word "front", "rear" of use is described below, "left", "right", "up" and "down" refer to direction in accompanying drawing, word " interior " and " outward " refer to the direction towards or away from particular elements geometric center respectively.
As shown in Figure 1 and Figure 2, the stable type explosion-proof lightning arrester monitor that the utility model provides, comprise pedestal 1, the housing 2 be arranged on pedestal, the electrical equipment 3 be arranged in housing 2, above described pedestal 1, insulator 4 is installed, described insulator 4 is for connecting lightning arrester insulation pedestal, and above-mentioned electrical equipment 3 is circuit in monitor and metering device.Described housing 2 side is provided with transparent panel 5, and transparent panel is preferably made up of glass, through the instrument display in transparent panel 5 convenient observation housing 3.Also be provided with the discharging gap of metal guide rod 6 and composition thereof in housing 2, specifically, be provided with two metal guide rods in housing 2, wherein one is connected with insulator 4, and another root connects or has discharging gap between pedestal 1, two metal guide rods; The Metallic rod be connected with insulator 4 is connected with signal wire 14, signal wire is connected to measuring instrument in housing, thus can monitor the current signal of lightning arrester release.Also be provided with metallic sealed cover 11 in housing 2, metallic sealed cover 11 is fixedly connected with formation cavity with pedestal, and we are referred to as release of pressure explosion-proof cell 7, and namely the discharging gap of metal guide rod 6 and composition thereof is arranged in release of pressure explosion-proof cell 7.Preferably, metallic sealed cover 11 offers the aperture 15 holding signal wire 4 and pass, and aperture 15 place should carry out encapsulation process, such as or employing O-ring seal sealing stifled by rubber seal.The pressure that release of pressure explosion-proof cell 7 can produce in lightning arrester on-line monitoring device when effectively release current is excessive.The first ground hole 8 is provided with bottom pedestal 1; this ground hole can play a protective role; simultaneously; we connect multiple grounding end 9 in the middle part of pedestal; described multiple grounding end is provided with the second ground hole 10; second ground hole 10 plays the effect of supplementary ground connection, and the first ground hole 8 matches with the second ground hole 10 effect of the release overcurrent that can reach good.Preferably, the second ground hole 10 axis and the first ground hole 8 axes normal, be easy to install.
Specifically, be provided with pressure release orifice 12 in the middle part of pedestal 1, pressure release orifice 12 upper cover has pressure releasing plate 13.Pressure releasing plate 13 should adopt moisture seal performance well and can be made by the material that pressure air is oppressed, as double-sided printed-circuit board or other thin plates.Pressure releasing plate 13 preferably capping outside pedestal 1, when pressure is excessive, is easier to be broken through by pressure.We preferably arrange the groove 16 being used for setting pressure releasing piece 13 at pressure release orifice 12 periphery, groove 16 size and pressure releasing plate 13 size match, and are convenient to the location and installation of pressure releasing plate 13.
Preferably, pedestal 1 should select the metal material that can conduct electricity to make, and in this example, pedestal 1 is die casting aluminium seat.
Further, between described pressure release orifice 12 and pressure releasing plate 13, be provided with O-ring seal, the sealing effectiveness of release of pressure explosion-proof cell can be strengthened at the explosion-proof room pressure of release of pressure under normal circumstances.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned embodiment, also comprises the technical scheme be made up of above technical characteristic combination in any.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection domain of the present utility model.
Claims (5)
1. a stable type explosion-proof lightning arrester monitor, comprise pedestal (1), the housing (2) be arranged on pedestal (1), the electrical equipment (3) be arranged in housing (2), described pedestal (1) top is provided with insulator (4), described housing (2) side is provided with transparent panel (5), two metal guide rods (6) are provided with in housing (2), wherein one is connected with insulator (4), and another root connects pedestal (1), has discharging gap between two metal guide rods (6); Metal guide rod (6) is connected with signal wire (14), signal wire (14) is connected to measuring instrument in housing, it is characterized in that: in housing (2), be also provided with gland bonnet (11), gland bonnet (11) and pedestal (1) connect and compose release of pressure explosion-proof cell (7), the discharging gap of metal guide rod (6) and composition thereof is arranged in release of pressure explosion-proof cell (7), pedestal (1) bottom is provided with the first ground hole (8), middle part connects multiple grounding end (9), and described multiple grounding end (9) is provided with the second ground hole (10).
2. stable type explosion-proof lightning arrester monitor according to claim 1, is characterized in that: described second ground hole (10) axis and the first ground hole (8) axes normal.
3. stable type explosion-proof lightning arrester monitor according to claim 1 and 2, is characterized in that: described pedestal (1) middle part is provided with pressure release orifice (12), and pressure release orifice upper cover has pressure releasing plate (13).
4. stable type explosion-proof lightning arrester monitor according to claim 3, is characterized in that: described gland bonnet (11) offers the aperture (15) holding signal wire (14) and pass.
5. stable type explosion-proof lightning arrester monitor according to claim 1 and 2, is characterized in that: described pedestal (1) is die casting aluminium seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680516.0U CN204166070U (en) | 2014-11-14 | 2014-11-14 | Stable type explosion-proof lightning arrester monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420680516.0U CN204166070U (en) | 2014-11-14 | 2014-11-14 | Stable type explosion-proof lightning arrester monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166070U true CN204166070U (en) | 2015-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420680516.0U Expired - Fee Related CN204166070U (en) | 2014-11-14 | 2014-11-14 | Stable type explosion-proof lightning arrester monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560508A (en) * | 2018-12-04 | 2019-04-02 | 威海职业学院 | A kind of dredger electric installation construction technology |
-
2014
- 2014-11-14 CN CN201420680516.0U patent/CN204166070U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109560508A (en) * | 2018-12-04 | 2019-04-02 | 威海职业学院 | A kind of dredger electric installation construction technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150218 Termination date: 20181114 |