CN211654695U - Gas relay for transformer - Google Patents
Gas relay for transformer Download PDFInfo
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- CN211654695U CN211654695U CN202020368975.0U CN202020368975U CN211654695U CN 211654695 U CN211654695 U CN 211654695U CN 202020368975 U CN202020368975 U CN 202020368975U CN 211654695 U CN211654695 U CN 211654695U
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- vertical frame
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Abstract
The utility model discloses a gas relay for transformer, this relay is through being provided with three tongue tube respectively on the support, and three tongue tube cooperates with upper float, lower float and impact movable plate respectively, and then realizes output gas volume warning, oil deficiency warning and velocity of flow warning, still can report to the police and velocity of flow report to the police effectively to distinguish oil deficiency simultaneously, improves the early warning effect; the gas relay for the transformer has the advantages of simple structure, reasonable design, accurate detection and the like.
Description
Technical Field
The utility model discloses a gas relay's technical field especially relates to a gas relay for transformer.
Background
The gas relay is an important safety protection device on an oil-immersed transformer, is arranged on a connecting pipe of a transformer box cover and an oil conservator, and is connected with a signal or a tripping circuit under the action of gas or oil flow generated by faults in the transformer, so that related devices send out alarm signals or the transformer is cut off from a power grid, and the effect of protecting the transformer is achieved.
At present, most of gas relays have the functions of outputting gas quantity alarm, oil shortage alarm, flow rate alarm and the like. When the oil flow surging is detected, the existing gas relay drives the impact movable plate to swing through the oil flow in the structural design, and the impact movable plate drives the lower floater to move, so that the movable contact of the magnet in the lower floater is attracted with the corresponding static contact of the dry spring to finish alarming.
Therefore, the existing gas relay cannot distinguish the oil shortage alarm signal from the flow rate alarm, and how to develop a novel gas relay to solve the problems becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a gas relay for transformer to solve the problem that current gas relay can't realize the differentiation of lack of oil alarm signal and velocity of flow warning at least.
The utility model provides a technical scheme specifically does, a gas relay for transformer, this gas relay includes: the device comprises a shell, a cover body, a vertical frame, an upper floater, a lower floater, a first reed pipe, a second reed pipe, an impact movable plate, a third reed pipe and a detection mechanism;
the upper end of the shell is open;
the cover body is buckled at an upper end opening of the shell, and a mounting hole is formed in the cover body;
the vertical frame is positioned in the shell, and the upper end surface of the vertical frame is fixedly connected with the lower surface of the cover body;
the upper floater and the lower floater are respectively arranged along the height direction of the vertical frame at intervals, moving contact magnets are respectively arranged on the upper floater and the lower floater, and the upper floater and the lower floater are respectively connected with the vertical frame in a rotating way through an upper connecting rod and a lower connecting rod;
the first reed switch is positioned below the upper floater and fixedly connected with the vertical frame, and a reed static contact matched with the moving contact magnet in the upper floater is arranged on the first reed switch;
the second reed switch is positioned below the lower floater and fixedly connected with the vertical frame, and a reed static contact matched with the moving contact magnet in the lower floater is arranged on the second reed switch;
the striking plate includes: the end part of the first movable plate and the end part of the second movable plate are integrally connected in an angle mode, a movable contact magnet is arranged on the second movable plate, and the connection part of the first movable plate and the second movable plate is rotatably connected with the vertical frame;
the third reed pipe is fixedly connected with the vertical frame, and a reed static contact matched with the moving contact magnet in the second movable plate is arranged on the third reed pipe;
the detection mechanism penetrates through the mounting hole in the cover body and is inserted into the shell.
Preferably, the impact movable plate is located on one side, close to the oil inlet, of the stand, and the lower float is located on one side, far away from the oil inlet, of the stand.
Further preferably, an end of the first movable plate and an end of the second movable plate of the impact movable plate are integrally connected at 90 °.
Further preferably, the detection mechanism includes: the probe comprises a spring button, a probe and a dial plate;
the spring button is arranged in the mounting hole of the cover body;
the probe is positioned in the shell, the upper end of the probe is fixedly connected with the spring button, and the lower end of the probe is positioned above a first movable plate in the impact movable plates;
the dial plate includes: one end of the connecting plate is fixedly connected with the probe, one end of the shifting piece is fixedly connected with the other end of the connecting plate, and bulges correspondingly matched with the upper connecting rod and the lower connecting rod are arranged on the shifting piece at intervals;
when the spring button is pressed down, the end part of the probe abuts against the first movable plate, the protrusions arranged on the poking piece at intervals abut against the upper connecting rod and the lower connecting rod respectively, the movable contact magnet in the second movable plate is forced to be attracted with the dry spring fixed contact in the third dry reed pipe, the movable contact magnet in the upper floater is attracted with the dry spring fixed contact in the first dry reed pipe, and the movable contact magnet in the lower floater is attracted with the dry spring fixed contact in the second dry reed pipe.
The utility model provides a gas relay for transformer through be provided with three tongue tube on the support respectively, and three tongue tube cooperates with last float, lower float and impact movable plate respectively, and then realizes that output gas volume reports to the police, lacks oily warning and velocity of flow report to the police, still can report to the police with lacking oily and velocity of flow report to the police effectively distinguishing simultaneously, improves the early warning effect.
The utility model provides a gas relay for transformer has simple structure, reasonable in design, detects advantages such as accurate.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gas relay for a transformer according to an embodiment of the present disclosure.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In order to solve the problem that the existing gas relay can not distinguish the oil shortage alarm signal from the flow rate alarm, the embodiment provides a gas relay for a transformer, which mainly comprises a shell 1, a cover body 2, a vertical frame 3, an upper float 4, a lower float 5, a first reed pipe 6, a second reed pipe 7, an impact movable plate 8, a third reed pipe 9 and a detection mechanism 10, wherein the upper end of the shell 1 is open, the cover body 2 is buckled at the open upper end of the shell 1, a mounting hole is arranged on the cover body 2, the vertical frame 3 is positioned in the shell 1, the upper end surface of the vertical frame 3 is fixedly connected with the lower surface of the cover body 2, the upper float 4 and the lower float 5 are respectively arranged along the height direction of the vertical frame 3 at intervals, movable contact magnets are respectively arranged on the upper float 4 and the lower float 5, and the upper float 4 and the lower float 5 are respectively rotatably connected with the vertical frame 3 through an upper connecting rod and a lower connecting rod, the first reed switch 6 is positioned below the upper floater 4 and is fixedly connected with the vertical frame 3, a reed static contact matched with a moving contact magnet in the upper floater 4 is arranged on the first reed switch 6, the second reed switch 7 is positioned below the lower floater 5, a dry spring static contact matched with a moving contact magnet in the lower float 5 is arranged on the second dry spring pipe 7 which is fixedly connected with the vertical frame 3, the impact moving plate 8 is composed of a first moving plate 81 and a second moving plate 82, the end part of the first moving plate 81 and the end part of the second moving plate 82 form an angle and are integrally connected, the second movable plate 82 is provided with a movable contact magnet, the joint of the first movable plate 81 and the second movable plate 82 is rotatably connected with the vertical frame 3, the third reed pipe 9 is fixedly connected with the vertical frame 3, the third dry reed pipe 9 is provided with a dry reed stationary contact which is engaged with the moving contact magnet in the second movable plate 82, and the detection mechanism 10 is inserted into the housing 1 through the mounting hole in the lid body 2.
When gas is generated in the transformer connected with the relay, an upper floater in a shell of the relay descends, a movable contact magnet on the upper floater attracts a dry reed fixed contact on a first dry reed pipe, and a gas quantity alarm signal is output; when the transformer connected with the relay leaks or lacks oil, the lower floater descends along with the descending of the oil level until a movable contact magnet on the lower floater attracts a dry reed static contact on a second dry reed pipe, and an oil shortage alarm signal is output; when the temperature of a transformer connected with the relay is too high, oil flow surging occurs, the impact movable plate rotates under the impact of the oil flow, the movable contact magnet on the second movable plate in the impact movable plate is attracted with the dry spring static contact on the third dry reed pipe, and flow rate alarming is carried out.
Wherein, a plurality of reed static contacts can be arranged on the third reed pipe, and the specific number can be decided by a user.
In order to improve the accurate detection of oil flow surging, oil shortage and oil leakage, as an improvement of the technical scheme, the impact movable plate 8 is arranged on one side, close to the oil inlet, of the vertical frame 3, and the lower floater 5 is designed to be arranged on one side, far away from the oil inlet, of the vertical frame 3. Lower float is direct to the oil inlet in the relay in the past, sometimes the oil stream surge also can lead to magnet movable contact and the dry spring stationary contact actuation that corresponds on the float down, send out the oil shortage warning, it is not accurate to lead to the testing result, and after through above-mentioned design, it is direct to the oil stream to strike the movable plate, the impact of no hindrance, can improve the accurate detection to the oil stream surge, simultaneously because lower float is located the one side of keeping away from the oil inlet, lower float is not direct to the oil inlet, through the hindrance of striking movable plate and grudging post, can reduce the oil stream by a wide margin and surge the effort to lower float, avoid floating because the lower float that the oil stream surges and lead to, and then improve the accuracy of detecting.
Preferably, the end of the first plate 81 and the end of the second plate 82 of the impact plate 8 are integrally connected at 90 °.
The detection mechanism 10 in the gas relay for the transformer is mainly used for comprehensively detecting whether all functions of a product are sensitive, and a specific structure provided by the embodiment is shown as follows, referring to fig. 1, the detection mechanism 10 is composed of a spring button 101, a probe 102 and a dial plate 103, wherein the spring button 101 is installed in an installation hole in the cover body 2, the probe 102 is located in the housing 1, the upper end of the probe 102 is fixedly connected with the spring button 101, the lower end of the probe 102 is located above a first movable plate 81 in the impact movable plate 8, the dial plate 103 is composed of a connecting plate and a dial plate, wherein one end of the connecting plate is fixedly connected with the probe 102, one end of the dial plate is fixedly connected with the other end of the connecting plate, and protrusions correspondingly matched with an upper connecting rod and a lower connecting rod are arranged on the dial plate at intervals, when the spring button 101 is pressed, the end of the probe 102 abuts against the first movable plate 81, The protrusions arranged on the poking pieces at intervals are respectively abutted against the upper connecting rod and the lower connecting rod to force the movable contact magnet in the second moving plate 82 to be attracted with the dry spring fixed contact in the third dry reed pipe 9, the movable contact magnet in the upper floater 4 to be attracted with the dry spring fixed contact in the first dry reed pipe 6, and the movable contact magnet in the lower floater 5 to be attracted with the dry spring fixed contact in the second dry reed pipe 7, so that 3 groups of signals are output simultaneously, and the simultaneous detection of all functional sensitivities is completed.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (3)
1. A gas relay for a transformer, comprising: the device comprises a shell (1), a cover body (2), a vertical frame (3), an upper floater (4), a lower floater (5), a first reed pipe (6), a second reed pipe (7), an impact movable plate (8), a third reed pipe (9) and a detection mechanism (10);
the upper end of the shell (1) is open;
the cover body (2) is buckled at an upper end opening of the shell (1), and a mounting hole is formed in the cover body (2);
the vertical frame (3) is positioned in the shell (1), and the upper end face of the vertical frame (3) is fixedly connected with the lower surface of the cover body (2);
the upper floater (4) and the lower floater (5) are arranged at intervals along the height direction of the vertical frame (3), moving contact magnets are arranged on the upper floater (4) and the lower floater (5), and the upper floater (4) and the lower floater (5) are rotationally connected with the vertical frame (3) through an upper connecting rod and a lower connecting rod respectively;
the first reed switch (6) is positioned below the upper floater (4) and is fixedly connected with the vertical frame (3), and a reed static contact matched with a moving contact magnet in the upper floater (4) is arranged on the first reed switch (6);
the second reed switch (7) is positioned below the lower floater (5) and is fixedly connected with the vertical frame (3), and a reed static contact matched with a moving contact magnet in the lower floater (5) is arranged on the second reed switch (7);
the impact plate (8) includes: the device comprises a first movable plate (81) and a second movable plate (82), wherein the end part of the first movable plate (81) and the end part of the second movable plate (82) are integrally connected in an angle mode, a movable contact magnet is arranged on the second movable plate (82), and the connection part of the first movable plate (81) and the second movable plate (82) is rotatably connected with the vertical frame (3);
the third reed pipe (9) is fixedly connected with the vertical frame (3), and a reed static contact matched with a moving contact magnet in the second moving plate (82) is arranged on the third reed pipe (9);
the detection mechanism (10) penetrates through a mounting hole in the cover body (2) and is inserted into the shell (1);
the detection mechanism (10) includes: a spring button (101), a probe (102) and a dial plate (103);
the spring button (101) is mounted in a mounting hole in the cover body (2);
the probe (102) is positioned in the shell (1), the upper end of the probe (102) is fixedly connected with the spring button (101), and the lower end of the probe (102) is positioned above the first movable plate (81) in the impact movable plate (8);
the dial plate (103) includes: the probe comprises a connecting plate and a shifting piece, wherein one end of the connecting plate is fixedly connected with the probe (102), one end of the shifting piece is fixedly connected with the other end of the connecting plate, and bulges which are correspondingly matched with the upper connecting rod and the lower connecting rod are arranged on the shifting piece at intervals.
2. The gas relay for transformer according to claim 1, wherein said striking plate (8) is located at a side of said stand (3) close to the oil inlet, and said lower float (5) is located at a side of said stand (3) far from the oil inlet.
3. The gas relay for transformer according to claim 1, wherein an end of the first movable plate (81) of the striking movable plate (8) is integrally connected to an end of the second movable plate (82) at 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020368975.0U CN211654695U (en) | 2020-03-22 | 2020-03-22 | Gas relay for transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020368975.0U CN211654695U (en) | 2020-03-22 | 2020-03-22 | Gas relay for transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211654695U true CN211654695U (en) | 2020-10-09 |
Family
ID=72688197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020368975.0U Active CN211654695U (en) | 2020-03-22 | 2020-03-22 | Gas relay for transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211654695U (en) |
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2020
- 2020-03-22 CN CN202020368975.0U patent/CN211654695U/en active Active
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