CN201004082Y - Field detection device for oil dipping transformer load switch - Google Patents
Field detection device for oil dipping transformer load switch Download PDFInfo
- Publication number
- CN201004082Y CN201004082Y CNU2007200673098U CN200720067309U CN201004082Y CN 201004082 Y CN201004082 Y CN 201004082Y CN U2007200673098 U CNU2007200673098 U CN U2007200673098U CN 200720067309 U CN200720067309 U CN 200720067309U CN 201004082 Y CN201004082 Y CN 201004082Y
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- China
- Prior art keywords
- axle sleeve
- support
- clamping
- loaded switch
- pressure
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- 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 local detection device for the oil-immersed transformer on-load switch, being used for measuring the pressure of the movable contact of the on-load switch, being a local detection device for the oil-immersed transformer on-load switch and comprising measuring track station and a pressure measuring apparatus, the utility model is characterized in that the measuring track station consists of fixing boards, positioning shafts, a clamp shaft sleeve, shaft sleeves and a bracket; wherein, three positioning shafts are fixedly arranged between two fixing boards, forming the machine base, while two positioning shafts are provided with shaft sleeves which are provided with a bracket with an adjusting arm provided with the pressure measuring apparatus, and the bracket is able to axially slide along the positioning shaft; moreover, the bracket is sleeved with an adjusting handle being able to adjust the bracket adjusting arm, and then adjust the height of the pressure measuring apparatus; besides, the two fixing boards are further provided with clamp shaft sleeves being able to clamp the on-load switch spindle. Apart from a simple structure, the utility model is able to measure the pressure of the on-load switch movable contact, promising a high precision and an easy carrying, thereby being applicable to the detection work in the transformer substation local.
Description
(1) technical field
The utility model relates to the on-site detecting device that is used for the oil-filled transformer loaded switch, is used to measure the pressure of loaded switch movable contact.
(2) background technology
For guaranteeing the power grid security reliability service, guarantee quality of voltage, extensively adopt ULTC to carry out pressure regulation in the electric system.Loaded switch as in the transformer unique under high-voltage large current the parts of rapid movement, its failure rate is higher relatively.At present, it is owing to the loaded switch fault causes that ULTC has an accident many, the main cause of loaded switch burning damage accident is because the dynamic/static contact contact pressure diminishes, and causes that dynamic/static contact loose contact, temperature rise are too high to cause contact melting welding, finally causes the loaded switch scaling loss.
The contact pressure of dynamic/static contact is that the bounce (being called for short moving contact pressure) that produces behind the spring system compressive deformation of moving contact when being contacted with static contact by moving contact determines.Generally in loaded switch manufacturing firm fixed loaded switch pick-up unit is arranged all, it adopts support formula fixation measuring platform to measure loaded switch movable contact pressure, but this equipment volume is big and be fixed, can't use at the scene.At present, in the loaded switch site examining and repairing, for the detection of moving contact pressure is that the feel of abundant by rule of thumb master craftsman when pushing moving contact with hand manually estimated, can't detection by quantitative, and this loaded switch for rapid movement under high-voltage large current is a very big hidden danger.
(3) summary of the invention
The purpose of this utility model is to provide a kind of on-site detecting device that is used for the oil-filled transformer loaded switch, this pick-up unit is simple in structure, can measure the pressure of loaded switch movable contact, degree of accuracy is high and be easy to carry, and is adapted at the testing at transformer station scene.
The utility model is achieved in that a kind of on-site detecting device that is used for the oil-filled transformer loaded switch, comprise measuring basis platform and pressure-measuring device, it is characterized in that: the measuring basis platform is made up of fixed head, locating shaft, clamping axle sleeve, axle sleeve, support, three locating shafts are fixedly installed between two fixed heads and constitute support, on two locating shafts, axle sleeve is housed, support is housed on the axle sleeve, on the regulating arm of support pressure-measuring device is housed, support can endwisely slip along locating shaft; Thereby the height that adjusting handle adjustable support regulating arm is regulated pressure-measuring device is housed on the support; But the clamping axle sleeve of clamping loaded switch main shaft is housed also on two fixed heads.
A described clamping axle sleeve that is loaded on the fixed head is fixed, and another clamping axle sleeve closely is enclosed within the fixed hub, and fixed hub is fixed on the fixed head, and turning handle rotates the clamping axle sleeve, thereby drives the loaded switch main shaft of clamping axle sleeve clamping.
Described two locating shafts that link to each other with support are at the end points form right angle triangle of clamping axle sleeve on fixed head of two end points on the fixed head and clamping loaded switch main shaft, and wherein the end points of a locating shaft is the summit, right angle.Bracket adjustment arm and support are perpendicular, are loaded on pressure-measuring device on the bracket adjustment arm over against the moving contact of the loaded switch main shaft of clamping on the clamping axle sleeve.
The utility model can be at the transformer in-site measurement loaded switch movable contact pressure of electric power power transmission and transformation, field measurement apparatus mainly comprises measuring basis platform and pressure-measuring device, the measuring basis platform mainly is to be used for fixing the loaded switch main shaft, provide measuring basis for measuring moving contact pressure, the measuring basis platform must have enough physical strengths, to guarantee measuring accuracy; Pressure-measuring device is contained on the support.Because the utility model is in the on-the-spot use of transformer station, when guaranteeing its precision, physical strength, necessary convenient in carrying, in light weight, therefore the measuring basis platform adopts the locating shaft and the two plate fixed head structures of three-point fix, and select the material of physical strength height, light weight for use, can guarantee precision and physical strength like this, be applicable to work on the spot again.
(4) description of drawings
Fig. 1 is used for the on-site detecting device structural representation of oil-filled transformer loaded switch for the utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the on-site detecting device structural representation that the load switch main shaft is installed;
Fig. 4 is the left view of Fig. 3.
Among the figure: 1 adjusting handle, 2 pressure-measuring devices, 3 supports, 4 fixed heads, 5 clamping axle sleeves, 6 fixed heads, 7 clamping axle sleeves, 8,9,10 locating shafts, 11 moving contacts, 12 loaded switch main shafts, 13 bracket adjustment arms, 14,15 axle sleeves, 16 fixed hubs, 17 handles.
(5) embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, Fig. 2, a kind of on-site detecting device that is used for the oil-filled transformer loaded switch comprises measuring basis platform and pressure-measuring device 2.The measuring basis platform is made up of fixed head 4,6, locating shaft 8,9,10, clamping axle sleeve 5,7, axle sleeve 14,15, fixed hub 16, handle 17, support 3, three locating shafts 8,9,10 are fixedly installed between two fixed heads 4,6 and constitute support, axle sleeve 14,15 is housed on two locating shafts 8,9, on the axle sleeve 14,15 support 3 is housed, on the regulating arm 13 of support 3 pressure-measuring device 2 is housed, support 3 can endwisely slip along locating shaft 8,9; Thereby the height that adjusting handle 1 adjustable support regulating arm 13 is regulated pressure-measuring device 2 is housed on the support 3.But the clamping axle sleeve 5,7 of clamping loaded switch main shaft is housed also on two fixed heads 4,6.A clamping axle sleeve 7 that is loaded on fixed head 6 is fixing, another clamping axle sleeve 5 that is loaded on fixed head 4 closely is enclosed within the fixed hub 16, clamping axle sleeve 5 can move in fixed hub 16, thereby change the distance of 5,7 on two clamping axle sleeves being loaded on the fixed head 4,6, loaded switch main shaft 12 clampings are lived, and turning handle 17 can make 360 ° of rotations of loaded switch main shaft.
Two locating shafts 8,9 that link to each other with support 3 are at the end points form right angle triangle of clamping axle sleeve 5,7 on fixed head 4,6 of two end points on the fixed head 4,6 and clamping loaded switch main shaft 12, and wherein the end points of a locating shaft 8 is the summit, right angle.Bracket adjustment arm 13 is perpendicular with support 3, is loaded on pressure-measuring device 2 on the bracket adjustment arm 13 over against the moving contact of the loaded switch main shaft 12 of clamping on clamping axle sleeve 5,7.
Locating shaft 8,9,10, fixed head 4,6 and support 3 can be selected the material of physical strength height, light weight for use, can guarantee like this measuring accuracy be convenient to again the carrying.
Referring to Fig. 3, Fig. 4, in the transformer maintenance sites, will be by three locating shafts 8,9,10 and two fixed heads 4,6 on-site detecting devices that are used for the oil-filled transformer loaded switch that constitute support are placed on the level land, mobile clamping axle sleeve 5 in fixed hub 16, with loaded switch main shaft 12 clampings on the support of pick-up unit, to the support 3 of pressure-measuring device 2 be housed along locating shaft 8,9 slide axially into moving contact 11 places of loaded switch main shaft 12, turning handle 17 drives 12 rotations of loaded switch main shaft, make moving contact 11 over against pressure-measuring device 2, rotate adjusting handle 1 and adjust bracket adjustment arm 13, make pressure-measuring device 2 to bottom offset, make the spring system compressive deformation of moving contact 11 by pressure-measuring device 2, the pressure the when spring system of measuring moving contact 11 reaches standard distortion size.
Moving contact 11 pressure are key parameters of loaded switch, and its quality state directly influences the serviceable life of loaded switch, measure moving contact 11 pressure by measurement mechanism of the present utility model, can realize by the loaded switch site examining and repairing its state being assessed.
On-site detecting device of the present utility model is applied to the pressure survey of transformer loaded switch movable contact, solved the blind spot that in the loaded switch site examining and repairing, only relies on artificial experience for many years and can't quantitative measurment, stop the serious accident that produces owing to the dynamic/static contact loose contact effectively, can improve the transformer operational reliability greatly, reduce operating cost.
Claims (4)
1. on-site detecting device that is used for the oil-filled transformer loaded switch, comprise measuring basis platform and pressure-measuring device, it is characterized in that: the measuring basis platform is made up of fixed head, locating shaft, clamping axle sleeve, axle sleeve, support, three locating shafts are fixedly installed between two fixed heads and constitute support, on two locating shafts, axle sleeve is housed, support is housed on the axle sleeve, on the regulating arm of support pressure-measuring device is housed, support can endwisely slip along locating shaft; Thereby the height that adjusting handle adjustable support regulating arm is regulated pressure-measuring device is housed on the support; But the clamping axle sleeve of clamping loaded switch main shaft is housed also on two fixed heads.
2. the on-site detecting device that is used for the oil-filled transformer loaded switch according to claim 1, it is characterized in that: a clamping axle sleeve that is loaded on the fixed head is fixed, another clamping axle sleeve closely is enclosed within the fixed hub, fixed hub is fixed on the fixed head, turning handle rotates the clamping axle sleeve, thereby drives the loaded switch main shaft of clamping axle sleeve clamping.
3. the on-site detecting device that is used for the oil-filled transformer loaded switch according to claim 1 and 2, it is characterized in that: two locating shafts that link to each other with support are at the end points form right angle triangle of clamping axle sleeve on fixed head of two end points on the fixed head and clamping loaded switch main shaft, and wherein the end points of a locating shaft is the summit, right angle.
4. the on-site detecting device that is used for the oil-filled transformer loaded switch according to claim 3, it is characterized in that: bracket adjustment arm and support are perpendicular, are loaded on pressure-measuring device on the bracket adjustment arm over against the moving contact of the loaded switch main shaft of clamping on the clamping axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673098U CN201004082Y (en) | 2007-02-13 | 2007-02-13 | Field detection device for oil dipping transformer load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200673098U CN201004082Y (en) | 2007-02-13 | 2007-02-13 | Field detection device for oil dipping transformer load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201004082Y true CN201004082Y (en) | 2008-01-09 |
Family
ID=39039624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200673098U Expired - Fee Related CN201004082Y (en) | 2007-02-13 | 2007-02-13 | Field detection device for oil dipping transformer load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201004082Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941121A (en) * | 2014-04-04 | 2014-07-23 | 盐城华盛变压器制造有限公司 | Arrester detector capable of simultaneously detecting two arresters |
| CN106772003A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of load switch of transformer test system and method |
-
2007
- 2007-02-13 CN CNU2007200673098U patent/CN201004082Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103941121A (en) * | 2014-04-04 | 2014-07-23 | 盐城华盛变压器制造有限公司 | Arrester detector capable of simultaneously detecting two arresters |
| CN106772003A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of load switch of transformer test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 Termination date: 20110213 |