CN105428133A - Grounding switch - Google Patents
Grounding switch Download PDFInfo
- Publication number
- CN105428133A CN105428133A CN201510803627.5A CN201510803627A CN105428133A CN 105428133 A CN105428133 A CN 105428133A CN 201510803627 A CN201510803627 A CN 201510803627A CN 105428133 A CN105428133 A CN 105428133A
- Authority
- CN
- China
- Prior art keywords
- crank
- shell
- moving contact
- earthed switch
- slide block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
The invention discloses a grounding switch. The grounding switch comprises a housing, a grounding body, a static contact and an end cover, wherein the grounding body is arranged in the housing; the static contact is arranged on the grounding body; the static contact is electrically connected with the grounding body; the end cover is arranged on the housing and fixedly connected with the housing; a dynamic contact is arranged in the housing; an optical position indicator and a sliding block are arranged on the dynamic contact; a crank and a guide column are arranged on one side of the sliding block; the crank is hinged to the sliding block; the sliding block is in sliding connection with the guide column; a control shaft is arranged on the crank and is in drive connection with the crank; a vibration absorber and a sliding sleeve are arranged at the bottom of the dynamic contact; and the sliding sleeve is in sliding connection with the dynamic contact. The grounding switch is accurate to control and stable and reliable in action, has a vibration reduction function and is long in service life.
Description
Technical field
The present invention relates to a kind of electrical equipment technical field, particularly relate to a kind of earthed switch.
Background technology
Earthed switch, for the mechanical switch of circuit ground part, it can carry the electric current (such as short circuit current) under non-normal condition within a certain period of time, but does not require the electric current under its carrying normal circuit condition.
Ground connection refers to that the outer current-carrying part of electric power system and the neutral point of electric device, the exposed conductive part of electric equipment and device is connected with the earth via conductor, can be divided into working earthing, lightning protection and protective earthing.
Working earthing is exactly needed to arrange (as neutral ground) by power system operation, therefore just have electric current under normal circumstances and flow through grounding electrode for a long time, but the just unsymmetrical current of several amperes to tens amperes, when system generation earth fault, the operating current having kiloampere flows through grounding electrode, but this electric current can be excised in 0.05 ~ 0.1s by protective relaying device, even backup protection, action is general also within 1s, lightning protection is the ground connection of establishing to eliminate overvoltage dangerous influence, as lightning rod, the ground connection of lightning conducter and lightning arrester, lightning protection just just has electric current and flows through under the effect of lightning impulse, the amplitude of lightning current flowing through lightning protection electrode can reach tens of to kiloampere up to a hundred, but the duration is very short.
Protective earthing is to prevent equipment to jeopardize ground connection set by personal safety because insulation damages is charged, as the metal shell of power equipment, steel reinforced concrete pole and metal shaft tower, protective earthing just just has electric current and flows through when apparatus insulated damage, its value can change in a big way, electric current all can cause the rising of grounding electrode current potential when flowing through above three kinds of grounding electrodes, the safety of the impact person and equipment, must raise the current potential of grounding electrode for this reason and be limited, or take corresponding safety measure to ensure equipment and personal safety, electric power system ground connection is generally neutral ground, therefore the current potential between neutral point and ground is close to zero, when phase line touches shell or ground connection, other two phase-to-ground voltages, in isolated neutral system by raise for phase voltage doubly, then close to phase voltage in the system of neutral ground, due to the earth connection having neutral point, can ensure the reliability of relaying protection, the direct current supply in communication system generally adopts plus earth, and communication equipment normally runs can to prevent noise from scurrying into and ensureing.
Current existing earthed switch control precision is lower, and operation stability is poor, and easily occur wearing and tearing, useful life is not long.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of control precisely, and having stable behavior is reliable, has vibration-damping function, the earthed switch of long service life.
For solving the problem, the present invention adopts following technical scheme: a kind of earthed switch, comprise shell, earth electrode, fixed contact and end cap, described earth electrode is established in the enclosure, described fixed contact is located on earth electrode, described fixed contact and earth electrode are electrically connected, described end cap is located on shell, described end cap is fixedly connected with shell, moving contact is provided with in described shell, described moving contact is provided with optical position indicator and slide block, optical position indicator can show the shift position of moving contact accurately, accurate manipulation can be realized, Control Shaft can control the rotation of crank, crank can keep transmission efficient, vibration when dashpot can prevent earthed switch from closing a floodgate, keep long service life, sliding sleeve can keep moving contact having stable behavior reliable, described slide block side is provided with crank and guide pillar, described crank and slide block hinged, described slide block and guide pillar are slidably connected, described crank is provided with Control Shaft, described Control Shaft is connected with crank gearing, dashpot and sliding sleeve is provided with bottom described moving contact, described sliding sleeve and moving contact are slidably connected.
As preferably, described end cap side is provided with insulating sleeve, and insulating sleeve is convenient to be installed.
As preferably, described moving contact holds with fixed contact and is connected, and facilitates contacting of moving contact and fixed contact.
As preferably, described dashpot is fixedly connected with shell, produces vibration when dashpot can prevent earthed switch from closing a floodgate.
As preferably, described guide pillar welds with shell, and holding structure is reliable and stable.
This technical scheme has control precisely, and having stable behavior is reliable, has vibration-damping function, the feature of long service life.
The invention has the beneficial effects as follows: the optical position indicator of setting can show the shift position of moving contact accurately, accurate manipulation can be realized, Control Shaft can control the rotation of crank, crank can keep transmission efficient, vibration when dashpot can prevent earthed switch from closing a floodgate, keep long service life, sliding sleeve can keep moving contact having stable behavior reliable.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of earthed switch of the present invention.
Embodiment
Consult shown in Fig. 1, a kind of earthed switch, comprise shell 1, earth electrode 2, fixed contact 3 and end cap 4, described earth electrode 2 is located in shell 1, described fixed contact 3 is located on earth electrode 2, described fixed contact 3 is electrically connected with earth electrode 2, described end cap 4 is located on shell 1, described end cap 4 is fixedly connected with shell 1, moving contact 5 is provided with in described shell 1, in use, shell 1 is arranged on working region, in insulating sleeve 13, access wire and moving contact 5 are electrically connected, when receiving closing operation instruction, Control Shaft 10 rotates, crank 8 is driven by Control Shaft 10, crank 8 drives moving contact 5 together with slide block 7 and optical position indicator 6 thereof, at operation terminal, slide block 7 and dashpot 11 are collided, moving contact 5 inserts fixed contact 3 downwards, wire is connected with earth electrode 2, complete closing operation instruction, during separating brake, Control Shaft 10 adopts rightabout to rotate, described moving contact is provided with optical position indicator 6 and slide block 7, described slide block 7 side is provided with crank 8 and guide pillar 9, described crank 8 is hinged with slide block 7, described slide block 7 is slidably connected with guide pillar 9, described crank 8 is provided with Control Shaft 10, described Control Shaft 10 is in transmission connection with crank 8, dashpot 11 and sliding sleeve 12 is provided with bottom described moving contact 5, described sliding sleeve 12 is slidably connected with moving contact 5.
Described end cap 4 side is provided with insulating sleeve 13, and in use, insulating sleeve 13 is convenient to be installed.
Described moving contact 5 holds with fixed contact 3 and is connected, and in use, facilitates contacting of moving contact 5 and fixed contact 3.
Described dashpot 11 is fixedly connected with shell 1, in use, produces vibration when dashpot 1 can prevent earthed switch from closing a floodgate.
Described guide pillar 9 welds with shell 1, and in use, holding structure is reliable and stable.
In use, shell 1 is arranged on working region, in insulating sleeve 13, access wire and moving contact 5 are electrically connected, when receiving closing operation instruction, Control Shaft 10 rotates, and drives crank 8 by Control Shaft 10, and crank 8 drives moving contact 5 together with slide block 7 and optical position indicator 6 thereof, at operation terminal, slide block 7 and dashpot 11 are collided, and moving contact 5 inserts fixed contact 3 downwards, and wire is connected with earth electrode 2, complete closing operation instruction, during separating brake, Control Shaft 10 adopts rightabout to rotate.
The invention has the beneficial effects as follows: the optical position indicator of setting can show the shift position of moving contact accurately, accurate manipulation can be realized, Control Shaft can control the rotation of crank, crank can keep transmission efficient, vibration when dashpot can prevent earthed switch from closing a floodgate, keep long service life, sliding sleeve can keep moving contact having stable behavior reliable.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection scope of the present invention; therefore, the protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. an earthed switch, it is characterized in that: comprise shell, earth electrode, fixed contact and end cap, described earth electrode is established in the enclosure, described fixed contact is located on earth electrode, described fixed contact and earth electrode are electrically connected, described end cap is located on shell, described end cap is fixedly connected with shell, moving contact is provided with in described shell, described moving contact is provided with optical position indicator and slide block, described slide block side is provided with crank and guide pillar, described crank and slide block hinged, described slide block and guide pillar are slidably connected, described crank is provided with Control Shaft, described Control Shaft is connected with crank gearing, dashpot and sliding sleeve is provided with bottom described moving contact, described sliding sleeve and moving contact are slidably connected.
2. earthed switch according to claim 1, is characterized in that: described end cap side is provided with insulating sleeve.
3. earthed switch according to claim 1, is characterized in that: described moving contact holds with fixed contact and is connected.
4. earthed switch according to claim 1, is characterized in that: described dashpot is fixedly connected with shell.
5. earthed switch according to claim 1, is characterized in that: described guide pillar welds with shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803627.5A CN105428133A (en) | 2015-11-20 | 2015-11-20 | Grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510803627.5A CN105428133A (en) | 2015-11-20 | 2015-11-20 | Grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105428133A true CN105428133A (en) | 2016-03-23 |
Family
ID=55506269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510803627.5A Pending CN105428133A (en) | 2015-11-20 | 2015-11-20 | Grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105428133A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895440A (en) * | 2016-05-26 | 2016-08-24 | 河南平高电气股份有限公司 | Transmission device and switch equipment employing same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038042Y (en) * | 2007-04-25 | 2008-03-19 | 上海泰高开关有限公司 | Earth switch |
| CN202678183U (en) * | 2012-05-16 | 2013-01-16 | 平高集团有限公司 | A three-operating-position isolation grounding switch |
| WO2013029334A1 (en) * | 2011-09-02 | 2013-03-07 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN204130387U (en) * | 2014-10-20 | 2015-01-28 | 山东泰开电器机构有限公司 | A kind of isolation of high pressure GIS device, earthed switch deciliter position indicator |
| CN205159185U (en) * | 2015-11-20 | 2016-04-13 | 国家电网公司 | Ground switch |
-
2015
- 2015-11-20 CN CN201510803627.5A patent/CN105428133A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201038042Y (en) * | 2007-04-25 | 2008-03-19 | 上海泰高开关有限公司 | Earth switch |
| WO2013029334A1 (en) * | 2011-09-02 | 2013-03-07 | 平高集团有限公司 | Movable and static contact connection assembly and high-voltage isolation grounding switch |
| CN202678183U (en) * | 2012-05-16 | 2013-01-16 | 平高集团有限公司 | A three-operating-position isolation grounding switch |
| CN204130387U (en) * | 2014-10-20 | 2015-01-28 | 山东泰开电器机构有限公司 | A kind of isolation of high pressure GIS device, earthed switch deciliter position indicator |
| CN205159185U (en) * | 2015-11-20 | 2016-04-13 | 国家电网公司 | Ground switch |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895440A (en) * | 2016-05-26 | 2016-08-24 | 河南平高电气股份有限公司 | Transmission device and switch equipment employing same |
| CN105895440B (en) * | 2016-05-26 | 2018-03-27 | 河南平高电气股份有限公司 | A kind of transmission device and the switchgear using the transmission device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160323 |