CN202905526U - Wrench specially used for disconnecting-link static contact adjustment - Google Patents
Wrench specially used for disconnecting-link static contact adjustment Download PDFInfo
- Publication number
- CN202905526U CN202905526U CN 201220626448 CN201220626448U CN202905526U CN 202905526 U CN202905526 U CN 202905526U CN 201220626448 CN201220626448 CN 201220626448 CN 201220626448 U CN201220626448 U CN 201220626448U CN 202905526 U CN202905526 U CN 202905526U
- Authority
- CN
- China
- Prior art keywords
- contact
- cross bar
- standpipe
- static contact
- wrench
- 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
Links
- 230000003068 static effect Effects 0.000 title abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000009413 insulation Methods 0.000 abstract description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Images
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a wrench specially used for disconnecting-link static contact adjustment. The wrench is characterized in that the wrench comprises a standpipe, an upper cross bar and a lower cross bar; a right end of the upper cross bar is vertically connected with a top end of the standpipe; the lower cross bar is arranged below the upper cross bar; the right end of the upper cross bar is vertically connected with the standpipe; an insulation sleeve pipe is arranged on a lower end portion of the standpipe; the upper cross bar and the lower cross bar are provided with insulation sleeves. By using the wrench of the utility model, an opening spacing of the static contact can be rapidly adjusted according to a diameter of a moving contact so that the static contact can be tightly contacted with the moving contact and a conductive capability is increased. Maintenance time is shortened and maintenance quality is guaranteed.
Description
Technical field
The utility model relates to a kind of spanner, especially relates to a kind of switch fixed contact and adjusts special spanner.
Background technology
High voltage isolator is one of high-voltage electrical equipment that uses in a large number in the electrical network, has wide range of applications.In power transmission and transforming equipment, the switch fixed contact of GW4-10, GW5-35/1250 type Series Switch-disconnector is to tightly touch finger with spring and spring pressure.What connect power supply is fixed contact, and what connect load is moving contact, i.e. the movable moving contact that cries, and static is fixed contact.
The moving contact of GW4 Series Switch-disconnector and fixed contact are in operation and all superheating phenomenon can occur, and have had a strong impact on flexibility and the power supply reliability of system's operation.Cause overheated main cause to have:
Do not take insulation measures between touch spring and the contact or taked measure but damage, cause electric current to flow through spring spring heating annealing is followed the string, cause contact and conducting rod loose contact and generate heat.Touch spring is in for a long time to compress or connect tight operating state fatigue can occur, and along with the lengthening of running time is slowly followed the string, even can produce permanent deformation, causes contact bad; The length of touch spring and elasticity are not of uniform size also to be one of reason that causes the contact heating, the employed spring length of same contact fit on deviation is excessive or elasticity is different, the be in operation distribution meeting of electric current of each contact is different different because of pressure, the larger CURRENT DISTRIBUTION of difference is more inhomogeneous, will come in contact bad and overheated after the long-time running.
Find that from maintenance the main cause that this kind problem occurs has following several situation: 1, moving contact and fixed contact deviation will cause greatly the rear dynamic/static contact secundly of combined floodgate and cause loose contact, single edge contact, contact-making surface has reduced half, and it is overheated to cause when large electric current passes through; 2, minute, in the making process, the electrical arc erosion contact-making surface that produces between contact causes loose contact; 3, bolt looseness causes loose contact and generates heat.
Use vaseline or conductive paste etc. to cause the bad electric conductivity that all can affect isolating switch of contact.Isolating switch is subject to air pollution when being in gate-dividing state for a long time, because acting on of surface oxidation and soil forms the higher cover layer of resistivity on the contact-making surface, make and very easily produce following fault behind the combined floodgate:
1, contact bad meeting and be easy to produce loose contact, electric spark appears, the hidden danger that causes fire is arranged.2, loose contact causes that the contact part is overheated, can accelerate the oxidation of contact, then aggravates the degree of loose contact.3, overheated might being welded on contact on the fixed contact can not in time be cut off the power supply when emergency episode occurs.
GW4-10, GW5-35/1250 type disconnecting link manufacturer are different, and pattern is slightly different, and the copper pipe diameter of moving contact is different, but the opening apart from being same size of fixed contact.In maintenance during disconnecting link, because of the spacing that fixed contact is opened wayward, the dynamic/static contact loose contact, do not have specific purpose tool to adjust the spacing of dynamic and static contact, can only rely on staff's experience to carry out trickle adjustment, make the repair time long, operating efficiency is not high, and repair quality is defective.
The utility model content
Technical problem to be solved in the utility model provides a kind of unlatching spacing that can adjust rapidly according to the moving contact diameter fixed contact, makes fixed contact contact closely special spanner with moving contact.
For solving the problems of the technologies described above, technical solution adopted in the utility model is: a kind of switch fixed contact is adjusted special spanner, it is characterized in that: comprise standpipe, cross tube and sheer pole; The right-hand member of described cross tube is connected with the top of standpipe is vertical, described sheer pole be positioned at cross tube below, the right-hand member of cross tube is connected with standpipe is vertical.
The further improvement that the utility model is made is: be provided with insulating sleeve in described standpipe bottom.Be equipped with insulating case at described cross tube and sheer pole.
The beneficial effect that adopts technique scheme to produce is: the utility model is adjusted rapidly the unlatching spacing of fixed contact according to the moving contact diameter, makes between moving contact and the fixed contact contact closely, and it is large that the contact after the adjustment has a contact-making surface, the advantage that conductive capability is strong.Shorten the repair time, improved operating efficiency, guaranteed repair quality.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is structural representation of the present utility model;
Fig. 2 uses special spanner to adjust the operation chart that fixed contact is opened spacing.
As shown in the figure: 1 cross tube, 2 sheer poles, 3 standpipes, 4 insulating cases, 5 fixed contacts, 6 moving contacts.
Embodiment
Contrast Fig. 1-2 uses step to be described further to operation of the present utility model:
A kind of switch fixed contact is adjusted special spanner, it is characterized in that: comprise standpipe 3, cross tube 1 and sheer pole 2; The right-hand member of described cross tube 1 is connected with the top of standpipe 3 is vertical, described sheer pole 2 be positioned at cross tube 1 below, the right-hand member of cross tube 1 and 3 vertical connections of standpipe.Be provided with insulating sleeve 4 in described standpipe 3 bottoms.Be equipped with insulating case 4(at described cross tube 1 and sheer pole 2 and see Fig. 1).
It is to make according to lever principle that GW4-10, GW5-35/1250 switch fixed contact are adjusted special spanner, entity is the steel pipe manufacturing, about 38 centimetres of total length, diameter is about 2 centimetres, open 3.5 centimetres of spacings, external overall is " F " shape structure, is equipped with insulating case at standpipe 3 bottoms and cross tube 1 and sheer pole 2, both convenient and safe operations can prevent from again pressing against and hinder the disconnecting link part.In actual adjusting operation, hand-held special spanner, the spring leaf that makes switch fixed contact is between cross tube 1 and sheer pole 2 and press down special spanner, utilizes the lever moment of special spanner to adjust the spring leaf of switch fixed contact, makes fixed contact 5 and moving contact 6 keep the close contact (see figure 2)s.
Claims (3)
1. a switch fixed contact is adjusted special spanner, it is characterized in that: comprise standpipe (3), cross tube (1) and sheer pole (2); The vertical connection of top of the right-hand member of described cross tube (1) and standpipe (3), described sheer pole (2) be positioned at cross tube (1) below, the right-hand member of cross tube (1) and vertical connection of standpipe (3).
2. a kind of switch fixed contact according to claim 1 is adjusted special spanner, it is characterized in that: be provided with insulating case (4) in described standpipe (3) bottom.
3. a kind of switch fixed contact according to claim 2 is adjusted special spanner, it is characterized in that: be equipped with insulating case (4) at described cross tube (1) and sheer pole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626448 CN202905526U (en) | 2012-11-23 | 2012-11-23 | Wrench specially used for disconnecting-link static contact adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220626448 CN202905526U (en) | 2012-11-23 | 2012-11-23 | Wrench specially used for disconnecting-link static contact adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905526U true CN202905526U (en) | 2013-04-24 |
Family
ID=48126164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220626448 Expired - Fee Related CN202905526U (en) | 2012-11-23 | 2012-11-23 | Wrench specially used for disconnecting-link static contact adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904571A (en) * | 2014-03-19 | 2014-07-02 | 国家电网公司 | Sleeve wrench special for disconnecting switch moving contact overhaul |
-
2012
- 2012-11-23 CN CN 201220626448 patent/CN202905526U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904571A (en) * | 2014-03-19 | 2014-07-02 | 国家电网公司 | Sleeve wrench special for disconnecting switch moving contact overhaul |
| CN103904571B (en) * | 2014-03-19 | 2015-12-16 | 国家电网公司 | Isolating switch moving contact maintenance cover special is pulled |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: BAODING POWER SUPPLY COMPANY Effective date: 20131030 Owner name: STATE GRID HEBEI ELECTRIC POWER COMPANY BAODING PO Effective date: 20131030 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 071000 BAODING, HEBEI PROVINCE TO: 100031 XICHENG, BEIJING |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131030 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: State Grid Hebei Electric Power Company Patentee after: Baoding Power Supply Branch Company, State Grid Hebei Electric Power Company Address before: 071000 No. 138 sunny north street, Hebei, Baoding Patentee before: Baoding Power Supply Company |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20171123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |