CN202094033U - conductive contact of novel high-voltage isolating switch - Google Patents
conductive contact of novel high-voltage isolating switch Download PDFInfo
- Publication number
- CN202094033U CN202094033U CN2011201767756U CN201120176775U CN202094033U CN 202094033 U CN202094033 U CN 202094033U CN 2011201767756 U CN2011201767756 U CN 2011201767756U CN 201120176775 U CN201120176775 U CN 201120176775U CN 202094033 U CN202094033 U CN 202094033U
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- CN
- China
- Prior art keywords
- contact
- isolating switch
- voltage isolating
- moving contact
- high voltage
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a mechanical switch device which can provide an electrical isolating gap at a tripping position according to regulated requirements in a high-voltage power system, in particular to a conductive contact of a novel high-voltage isolating switch. The conductive contact of the novel high-voltage isolating switch comprises a fixed contact and a moving contact and is characterized in that the fixed contact comprises a base (1), wherein the base (1) is connected with at least one group of conductive rods; each group of conductive rods comprise two conductive rods (2); one end of one conductive rod (2) and one end of another conductive rod (2), contacted with the moving contact, respectively bend to opposite directions, thus being beneficial to clamp the fixed contact; the inner layers of all conductive rods (2) are made from spring steel and the outer layers are made from copper; and the moving contact is a cylindrical conductor (3). The conductive contact of the novel high-voltage isolating switch has a simple structure, less heat productivity and long service life; and a disc type spring component is prevented from being stretched and pressed.
Description
Technical field
The utility model relates in a kind of high-voltage electric power system in the separating brake position mechanical switching device, especially the New High Voltage Isolating Switch conductive contact that the electrical isolation fracture can requirement according to the rules be provided.
Background technology
Along with the reform of electric power system system, country proposes higher requirement to power supply quality, power supply reliability, and the chance that equipment has a power failure is fewer and feweri.High voltage isolator equipment contact heating hidden danger can be more and more serious the safe operation that is threatening electric power system.China is sent out, the millions of surplus seats of transformer station, and is annual because of the operation of high voltage isolator warming-up effect, is forced to interruption maintenance and expends huge human and material resources, financial resources and time.And the marginal economic loss that produces because of the load of power failure direct losses with to the influence that industrial or agricultural and people's normal life bring is extremely huge.If can reduce the frequency of isolating switch heating effectively significantly, will improve the energy stabilizing of China energetically, produce huge economy and marginal benefit.
Existing domestic manufacturer produces the most employing of fixed contact spring action and keeps the contact pressure of moving contact has been realized current-carrying in fixed contact.The galvanic circle abnormal heating phenomenon that usually takes place in service, majority are because static contact finger compresses or extension spring fatigue, characteristic degenerate, and monolateral contact of static contact finger and long-time running contact resistance increase and cause.In service because static contact finger compress or extension spring by compression or stretch for a long time, if operating current is bigger, temperature rise surpasses permissible value, will make its elasticity variation, vicious circle finally causes scaling loss, and this is to cause the main cause of contact heating (also there is the similar problem of part in the shell fragment type contact of part manufacturer production, and fingertip is more special to the conduction and the requirement of self material of material, the cost height).In addition, poor, the easy to wear dew copper of contact silver coating technology, contact-making surface is dirty, and that contact inserts is not enough, bolt corrosion causes the reduction of wire clamp interface pressure etc. also is the reason that causes heating.
The utility model content
The purpose of this utility model provides and a kind ofly can reduce isolating switch conductive contact heating situation significantly, thereby prolongs the conductive contact life-span, reduce the New High Voltage Isolating Switch conductive contact of the facilities plan and the fault maintenance frequency.
For achieving the above object, the technical solution adopted in the utility model is.
A kind of New High Voltage Isolating Switch conductive contact, comprise fixed contact and moving contact, its special feature is: described fixed contact comprises pedestal, this pedestal is connected with at least one group of conducting rod, each group conducting rod is made up of two conducting rods, be beneficial to clamping moving contact when action thereby the end that these two conducting rods contact with moving contact is crooked round about respectively, and all conducting rod internal layers is spring steel, skin is a copper, and described moving contact is a cylindrical conductor.
Wherein spring steel is 50 chrome-vanadium steels.
Wherein conducting rod has 2,4,6 or 8 groups.
Wherein moving contact is copper pipe or copper bar, thereby and on the moving contact with fixed contact contact position surface for circular-arc depression easily by the fixed contact clamping and increase contact area.
Wherein moving contact is the copper bar, and is two frustums of a cone that the top links to each other with the fixed contact contact position on the moving contact.
Wherein pedestal is made up of three laminar substrates by bolt, and the groove that cooperates with conducting rod is beneficial to the clamping conducting rod and realization face contacts thereby have on this three laminar substrate.
New High Voltage Isolating Switch conductive contact of the present utility model is simple in structure, do not have stretch, compress, the disc spring parts, caloric value is few, long service life.
Description of drawings
Accompanying drawing 1 is the structural representation of fixed contact in the utility model.
Accompanying drawing 2 is the vertical view of Fig. 1.
Accompanying drawing 3 is the structural representation of moving contact in the utility model.
Accompanying drawing 4 is for contacting the structural representation of conducting for fixed contact in the utility model with moving contact.
Embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
As shown in Figure 1, conductive contact of the present utility model, comprise fixed contact and moving contact, fixed contact comprises pedestal 1, this pedestal 1 is connected with at least one group of (two groups of 4 conducting rods 2 are arranged among Fig. 1) conducting rod 2 totally, each group conducting rod is made up of two conducting rods 2, be beneficial to clamping moving contact when action thereby the end that these two conducting rods 2 contact with moving contact is crooked round about respectively, and all conducting rod 2 internal layers are spring steel, spring steel adopts 50 chrome-vanadium steels, and skin is a copper, promptly coats layer of copper on the basis of spring steel pole, the thickness of copper can determine that the diameter of 50 chrome-vanadium steels is determined according to contact pressure according to rated current.And moving contact is a cylindrical conductor 3, is specially copper pipe or copper bar, thereby and on the moving contact with fixed contact contact position surface for circular-arc depression easily by the fixed contact clamping and increase contact area.Perhaps moving contact is the copper bar, and is two frustums of a cone that the top links to each other with the fixed contact contact position on the moving contact.
Clearly, conducting rod 2 can be chosen as 2 (as shown in Figure 1), 4,6 or 8 groups, and can adjust voluntarily according to operating current, pedestal 1 is made up of three layers of aluminium alloy base plate by bolt, and the circular-arc groove that cooperates with conducting rod 2 is beneficial to clamping conducting rod 2 and realization face contacts thereby have on this three laminar substrate.
Operation principle of the present utility model is as follows, and fixed contact moves to moving contact direction straight line, when two conducting rods 2 in one group of conducting rod are stretched with its spacing after moving contact contacts elastic deformation takes place promptly, therefore moving contact is produced chucking power and realizes stable contact.
Claims (6)
1. New High Voltage Isolating Switch conductive contact, comprise fixed contact and moving contact, it is characterized in that: described fixed contact comprises pedestal (1), this pedestal (1) is connected with at least one group of conducting rod, each group conducting rod is made up of two conducting rods (2), these two conducting rods (2) thus an end that contacts with moving contact is crooked round about respectively to be beneficial to clamping moving contact when action, and all conducting rods (2) internal layer is spring steel, skin is a copper, and described moving contact is a cylindrical conductor (3).
2. New High Voltage Isolating Switch conductive contact as claimed in claim 1 is characterized in that: wherein spring steel is 50 chrome-vanadium steels.
3. New High Voltage Isolating Switch conductive contact as claimed in claim 1 is characterized in that: wherein conducting rod (2) has 2,4,6 or 8 groups.
4. New High Voltage Isolating Switch conductive contact as claimed in claim 1 is characterized in that: wherein moving contact is copper pipe or copper bar, thereby and on the moving contact with fixed contact contact position surface for circular-arc depression easily by the fixed contact clamping and increase contact area.
5. New High Voltage Isolating Switch conductive contact as claimed in claim 1 is characterized in that: wherein moving contact is the copper bar, and is two frustums of a cone that the top links to each other with the fixed contact contact position on the moving contact.
6. as any described New High Voltage Isolating Switch conductive contact in the claim 1 to 5, it is characterized in that: wherein pedestal (1) is made up of three laminar substrates by bolt, on this three laminar substrate, have with conducting rod (2) thus the groove that cooperates is beneficial to and clamps conducting rod (2) and realization face contacts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201767756U CN202094033U (en) | 2011-05-30 | 2011-05-30 | conductive contact of novel high-voltage isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201767756U CN202094033U (en) | 2011-05-30 | 2011-05-30 | conductive contact of novel high-voltage isolating switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094033U true CN202094033U (en) | 2011-12-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201767756U Expired - Fee Related CN202094033U (en) | 2011-05-30 | 2011-05-30 | conductive contact of novel high-voltage isolating switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094033U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054034A (en) * | 2017-11-28 | 2018-05-18 | 宁波伊顿电力科技有限公司 | A kind of plug-in strip |
| WO2022226693A1 (en) * | 2021-04-25 | 2022-11-03 | Abb Schweiz Ag | Earthing switch for switchgear and associated switchgear |
-
2011
- 2011-05-30 CN CN2011201767756U patent/CN202094033U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054034A (en) * | 2017-11-28 | 2018-05-18 | 宁波伊顿电力科技有限公司 | A kind of plug-in strip |
| CN108054034B (en) * | 2017-11-28 | 2019-03-15 | 宁波伊顿电力科技有限公司 | A kind of plug-in strip |
| WO2022226693A1 (en) * | 2021-04-25 | 2022-11-03 | Abb Schweiz Ag | Earthing switch for switchgear and associated switchgear |
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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 |
Granted publication date: 20111228 Termination date: 20150530 |
|
| EXPY | Termination of patent right or utility model |