CN205645673U - Gas relay for transformer - Google Patents
Gas relay for transformer Download PDFInfo
- Publication number
- CN205645673U CN205645673U CN201620427261.6U CN201620427261U CN205645673U CN 205645673 U CN205645673 U CN 205645673U CN 201620427261 U CN201620427261 U CN 201620427261U CN 205645673 U CN205645673 U CN 205645673U
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- push rod
- cam
- flow velocity
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Abstract
The utility model relates to a gas relay for transformer, including last casing, down casing, terminal box, varistor ware, support and floater, the one end of cam dwang and push rod all sets up on last casing, and the other end of cam dwang and push rod is equipped with the permanent magnetism cam in all stretching into the internal chamber of inferior valve on the cam dwang, the bottom of support transversely sets up the axis of rotation, and the lower extreme setting of velocity of flow movable plate is in the axis of rotation, and the upper end of velocity of flow movable plate offsets with the permanent magnetism cam, the side of support sets up the slide, and operating device slides and sets up on the slide, and operating device's top links to each other with the push rod, operating device's the below and the bottom swing joint of velocity of flow movable plate. The utility model discloses can realize that the online of buchholz relay detects self, need not to dismantle, the normal operating of having guaranteed equipment, and push rod can accomplish the effect of two link gears, has simplified the structure, has reduced the volume, has practiced thrift the cost.
Description
Technical field
This utility model relates to a kind of relay, particularly relates to a kind of transformator gas relay, is arranged between transformator and oil conservater in connecting tube, is used for protecting transformer safety to run, it is adaptable to oil immersed power transformer, belongs to intelligent substation technical field.
Technical background
At present, international conventional gas relay is mainly used in monitoring gas flow the output alarm signal that the internal faults such as oil-immersed power transformer shelf depreciation produce；Being also used for monitoring transformator causes transformer oil rapid expanding to send transformator trip signal due to faults such as internal short-circuits.Gas relay basic structure of the prior art is made up of rosette, air storage chamber, upper float, light gas alarming contact, flow velocity baffle plate, flow velocity tripping operation contact and housing etc..Its operation principle is: when inside transformer owing to shelf depreciation produces gas, when between transformator and oil conservater, connecting tube converges to the air storage chamber of gas relay, upper float declines with the increase of gas flow, when dropping to certain position, light gas alarming contact, sends alarm signal.Causing transformer oil rapid expanding when inside transformer due to faults such as short circuits, between transformator and oil conservater, connecting tube flows fast through gas relay oil stream impingement flow speed gear plate, and baffle plate drives flow velocity tripping operation contact to send the trip signal that flow velocity is too fast.Therefore, need gas relay often carries out detection maintenance, during to prevent gas relay fault own, transformer fault cannot be protected in time, but in prior art, the gas relay in being currently running mostly cannot be carried out self detection, only flow velocity baffle plate expert dynamic model intends Autonomous test, there is a few gases relay that needing, two groups of link gears are set and just can carry out self detection, take up room relatively big, relatively costly.
Summary of the invention
This utility model is for above-mentioned the deficiencies in the prior art, it is provided that a kind of transformator gas relay, solves the problem that prior art repeat circuit can not self detect, and saves space, reduces cost.
Technical solutions of the utility model are as follows:
Including upper shell, lower house, rosette, rheostat, support and ball float, rosette is arranged on the top of upper shell, support is arranged in lower housing cavity, cantilever tip is fixed on upper shell, ball float is movably connected on support, rheostat is fixed on support and is connected with ball float, and rheostat lead-out wire is connected with rosette；One end of cam rotation bar and push rod is arranged on upper shell, and the other end of cam rotation bar and push rod all stretches in lower housing cavity, and cam rotation bar is provided with permanent magnetism cam；The bottom horizontally set rotary shaft of support, flow velocity moves the lower end of plate and arranges on the rotating shaft, and flow velocity moves the upper end of plate and offsets with permanent magnetism cam；The side of support arranges slideway, and operating mechanism is slidably arranged on slideway, and the top of operating mechanism is connected with push rod, and the lower section of operating mechanism is moved the bottom of plate and is flexibly connected with flow velocity.
Described operating mechanism includes slide plate, moving plate and stator, and slide plate is arranged in slideway, and the lower end of slide plate connects moving plate and stator, arranges extension spring between moving plate and stator.
It is provided with back-moving spring between described slide plate and support.
Being provided with flow velocity in described lower housing cavity and move the postive stop baffle of plate, postive stop baffle is fixed on support.
It is set with spring on described push rod.
This utility model compared with prior art, has the effect that
This utility model by arranging operating mechanism, push rod, flow velocity move the structures such as plate, can realize self detection online of gas relay, it is not necessary to dismounting, it is ensured that equipment is properly functioning；And push rod can complete the effect of two link gears, simplify structure, reduce volume, saved cost.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation.
Fig. 2 is that this utility model flow velocity moves plate heeling condition partial structurtes schematic diagram.
Fig. 3 is that this utility model flow velocity moves sheet reset state partial structurtes schematic diagram.
In figure, 1. upper shell；2. lower house；3. slideway；4. permanent magnetism cam；5. support；6. flow velocity moves plate；7. stator；8. cam rotation bar；9. push rod；10. spring；11. extension springs；12. postive stop baffles；13. moving plates；14. rosettees；15. slide plates, 16. ball floats.
Detailed description of the invention
Referring to the drawings, in conjunction with specific embodiments, this utility model is described in detail as follows.
Embodiment
As Figure 1-3, including upper shell 1, lower house 2, rosette 14, rheostat, support 5 and ball float 16, rosette 14 is arranged on the top of upper shell 1, support 5 is arranged in lower housing cavity, support 5 top is fixed on upper shell 1, ball float is movably connected on support, and rheostat is fixed on support and is connected with ball float, and rheostat lead-out wire is connected with rosette；One end of cam rotation bar 8 and push rod 9 is arranged on upper shell 1, and the other end of cam rotation bar 8 and push rod 9 all stretches in lower housing cavity, and cam rotation bar 8 is provided with permanent magnetism cam 4；The bottom horizontally set rotary shaft of support, flow velocity moves the lower end of plate 6 and arranges on the rotating shaft, and flow velocity moves the upper end of plate 6 and offsets with permanent magnetism cam 4；The side of support 5 arranges slideway 3, operating mechanism is slidably arranged on slideway 3, operating mechanism includes slide plate 15, moving plate 13 and stator 7, slide plate 15 is arranged in slideway 3, and the lower end of slide plate 15 connects moving plate 13 and stator 7, arranges extension spring 11 between moving plate 13 and stator 7, the top of slide plate 15 is connected with push rod 9, being set with spring 10 on push rod, the lower section of stator 7 is moved the bottom of plate 6 and is flexibly connected with flow velocity, is provided with back-moving spring between described slide plate and support.Being provided with flow velocity in described lower housing cavity and move the postive stop baffle 12 of plate, postive stop baffle is fixed on support.
The operation principle of the present invention is: promote push rod 9, push rod band pneumatic operating mechanism moves downward, moving plate 13 promotes flow velocity to move plate 6 to tilt, moving plate 13 is outwards pushed open by support simultaneously, when moving plate 13 depart from flow velocity move plate 6 time, flow velocity moves plate 6 and offsets with postive stop baffle 12, continues to press on push rod 9, stator 7 promotes flow velocity to move plate 6 inverted running, encounters permanent magnetism cam 4 and resets.Push rod 9 resets under the effect of spring 10.
Rotary permanent-magnet cam rotation bar 8 can change flow velocity and move the relative position of plate 6 and lower house support, it is possible to change permanent magnetism cam and flow velocity moves the magnetic force between plate, therefore can adjust flow speed value in the outer certain limit of housing.
The above is specific embodiment of the utility model and the know-why used, any based on the equivalent transformation on the basis of technical solutions of the utility model, within belonging to protection domain of the present utility model.
Claims (5)
1. transformator gas relay, including upper shell, lower house, rosette, rheostat, support and ball float, rosette is arranged on the top of upper shell, support is arranged in lower housing cavity, cantilever tip is fixed on upper shell, ball float is movably connected on support, and rheostat is fixed on support and is connected with ball float, and rheostat lead-out wire is connected with rosette；It is characterized in that one end of cam rotation bar and push rod is arranged on upper shell, the other end of cam rotation bar and push rod all stretches in lower housing cavity, and cam rotation bar is provided with permanent magnetism cam；The bottom horizontally set rotary shaft of support, flow velocity moves the lower end of plate and arranges on the rotating shaft, and flow velocity moves the upper end of plate and offsets with permanent magnetism cam；The side of support arranges slideway, and operating mechanism is slidably arranged on slideway, and the top of operating mechanism is connected with push rod, and the lower section of operating mechanism is moved the bottom of plate and is flexibly connected with flow velocity.
Transformator gas relay the most according to claim 1, it is characterised in that described operating mechanism includes slide plate, moving plate and stator, slide plate is arranged in slideway, and the lower end of slide plate connects moving plate and stator, arranges extension spring between moving plate and stator.
Transformator gas relay the most according to claim 2, it is characterised in that be provided with back-moving spring between described slide plate and support.
Transformator gas relay the most according to claim 1, it is characterised in that being provided with flow velocity in described lower housing cavity and move the postive stop baffle of plate, postive stop baffle is fixed on support.
Transformator gas relay the most according to claim 1, it is characterised in that be set with spring on described push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427261.6U CN205645673U (en) | 2016-05-12 | 2016-05-12 | Gas relay for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620427261.6U CN205645673U (en) | 2016-05-12 | 2016-05-12 | Gas relay for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645673U true CN205645673U (en) | 2016-10-12 |
Family
ID=57058807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620427261.6U Active CN205645673U (en) | 2016-05-12 | 2016-05-12 | Gas relay for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645673U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192791A (en) * | 2021-04-29 | 2021-07-30 | 广东电网有限责任公司梅州供电局 | Quick-acting oil pressure relay and transformer |
-
2016
- 2016-05-12 CN CN201620427261.6U patent/CN205645673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192791A (en) * | 2021-04-29 | 2021-07-30 | 广东电网有限责任公司梅州供电局 | Quick-acting oil pressure relay and transformer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |