CN114093707A

CN114093707A - GIS equipment

Info

Publication number: CN114093707A
Application number: CN202111232762.0A
Authority: CN
Inventors: 何茂钦; 耿俊雄; 宋友鹏; 汪一波; 谷若雨; 王伟; 廖伟兴
Original assignee: Shenzhen Power Supply Co ltd
Current assignee: Shenzhen Power Supply Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-25
Anticipated expiration: 2041-10-22
Also published as: CN114093707B

Abstract

The application relates to a GIS device. The GIS equipment comprises an equipment body; the disconnecting link is arranged in the equipment body; one end of the transmission connecting lever is rotatably connected to the equipment body and extends into the equipment body to be connected to the disconnecting link in a transmission manner so as to drive the disconnecting link to switch between a switching-on position and a switching-off position; wherein, the equipment body is provided with a closing groove and a separating groove, and the transmission crank arm is provided with a positioning hole; the transmission crank arm rotating path is provided with a position which can align the alignment groove and the positioning hole and align the indexing groove and the positioning hole; when the closing slot is aligned with the positioning hole, the disconnecting link is in a switching-on position; when the positioning groove is aligned with the positioning hole, the disconnecting link is in a disconnecting position. This GIS equipment can judge whether the switch closes and divides the target position through observing whether the locating hole aligns with closing the position groove or dividing the position groove to avoid GIS equipment to break down.

Description

GIS equipment

Technical Field

The application relates to the technical field of operation and maintenance of extra-high voltage power grids, in particular to GIS equipment.

Background

GIS equipment (gas insulated switchgear) is widely used due to the advantages of small occupied area, safe and reliable operation, good electrical performance, convenient maintenance and the like. However, compared with the traditional open type equipment, the GIS equipment is not very intuitive, and can not directly judge whether the opening and closing of the GIS disconnecting link contact is in place or not through observation. Once the contact opening and closing are not in place, accidents can be caused.

The traditional judging method is as follows: through the switching of the auxiliary switch contact on the disconnecting link mechanism, whether the signal is transmitted to a background machine signal, a field indicator lamp and a field mechanical switching-on/off indicator board (the indicator board can be adjusted manually and has certain visual difference) to judge whether the switching-on/off is in place, if one of the above abnormity occurs, the intuitive judgment cannot be carried out, once the combined electrical appliance breaks down, the processing difficulty is relatively large, the power supply recovery time is long, and certain hidden danger is brought to the safe and stable operation of a power grid. Moreover, the position of the knife switch is transferred after long-term operation, and the position change phenomena such as looseness, blocking and the like can occur, so that the closing of the knife switch is not in place, and the judgment difficulty is increased.

Disclosure of Invention

Therefore, it is necessary to provide a GIS device capable of accurately determining whether the disconnecting link is in place or not, in order to solve the problem that the conventional method is not accurate enough in determining whether the disconnecting link is in place or not.

According to an aspect of the present application, there is provided a GIS device, including:

an apparatus body;

the disconnecting link is arranged in the equipment body; and

one end of the transmission crank arm is rotatably connected to the equipment body and extends into the equipment body to be connected to the disconnecting link in a transmission manner so as to drive the disconnecting link to switch between a switching-on position and a switching-off position;

the equipment body is provided with a positioning groove and a dividing groove, and the transmission crank arm is provided with a positioning hole;

the transmission crank arm rotating path is provided with a position which can align the alignment groove with the positioning hole and align the indexing groove with the positioning hole; when the switch-on groove is aligned with the positioning hole, the disconnecting link is in the switch-on position; when the dividing groove is aligned with the positioning hole, the disconnecting link is located at the disconnecting link position.

In one embodiment, the groove profiles of the positioning groove and the indexing groove are circular and matched with the hole profile of the positioning hole.

In one embodiment, the device further comprises a detection assembly which is matched with the transmission crank arm, and the detection assembly is used for detecting the distance between the transmission crank arm and the device body along the axial direction of the positioning hole so as to judge the position of the disconnecting link;

the device comprises a device body and is characterized in that a first distance is arranged between the groove bottom of a position closing groove and a transmission crank arm, a second distance is arranged between the groove bottom of a position dividing groove and the transmission crank arm, and a third distance is arranged between the surface of the device body and the transmission crank arm.

In one embodiment, the detection assembly comprises a range finder comprising at least one of an ultraviolet infrared range finder, an ultrasonic range finder.

In one embodiment, the detection assembly comprises an acoustic display assembly which is in signal connection with the distance measuring instrument and is used for reading the distance between the transmission crank arm and the equipment body; and/or

The detection assembly comprises a light display assembly, and the light display assembly is in signal connection with the distance meter and used for displaying the distance between the transmission crank arm and the equipment body.

In one embodiment, the detection component comprises a networking component, and the networking component is in signal connection with the range finder and is used for sending the test result to the mobile terminal.

In one embodiment, the detection assembly further comprises a solar assembly connected to the distance meter for supplying power to the distance meter.

In one embodiment, the device further comprises a fixing component, wherein two opposite ends of the fixing component are respectively connected with the transmission crank arm and the detection component so as to fasten the detection component on the transmission crank arm.

In one embodiment, the fixing assembly comprises a first fixing member and a second fixing member, the first fixing member is connected with the transmission crank arm, and the second fixing member is connected with the detection assembly and detachably connected with the first fixing member so as to provide a fastening force towards the transmission crank arm for the detection assembly.

In one embodiment, the first fixing member and the second fixing member are connected by a screw thread.

The GIS equipment is provided with the closing groove and the separating groove on the equipment body, and the transmission crank arm is provided with the positioning hole. The transmission connecting lever is rotatably connected to the equipment body and is in transmission connection with the disconnecting link so as to drive the disconnecting link to switch between a switching-on position and a switching-off position. The transmission crank arm rotation path is provided with a position which can align the matching groove and the positioning hole and align the indexing groove and the positioning hole. When the closing groove is aligned with the positioning hole, the disconnecting link is in a switching-on position; when the positioning groove is aligned with the positioning hole, the disconnecting link is in a disconnecting position. Therefore, whether the disconnecting link is in place in a closing and separating mode can be judged by observing whether the positioning hole is aligned with the closing groove or the separating groove, and therefore the GIS equipment is prevented from being broken down.

Drawings

Fig. 1 is a schematic partial structure diagram of a GIS device in an embodiment of the present application;

fig. 2 is an enlarged schematic view of a partial structure of the GIS device shown in fig. 1;

fig. 3 is a schematic partial structure diagram of a GIS device in another embodiment of the present application;

fig. 4 is an enlarged schematic view of a partial structure of the GIS device shown in fig. 3.

100. A GIS device; 10. an apparatus body; 11. a positioning groove; 12. a dividing groove; 30. a transmission crank arm; 31. positioning holes; 50. a detection component; 70. a fixing assembly; 71. a first fixing member; 72. and a second fixing member.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In order to facilitate understanding of the technical solution of the present application, prior to the detailed description, an existing GIS device is first described.

The faults of the disconnecting link are mainly divided into insulation faults, transmission mechanism faults, operating mechanism faults and secondary circuit faults, and the faults in the mechanical aspect are usually represented by separation rejection, closing rejection, misoperation, incomplete switching on and closing and the like, wherein the separation rejection is one of the faults with the highest occurrence frequency. However, the operation of the power grid can cause serious potential safety hazard due to the fact that the disconnecting link is not switched on and off, and the defects are paid more and more attention in recent years. In the GIS equipment, whether the disconnecting link is in place or not is often difficult to accurately judge, and the transmission of the background monitoring when the disconnecting link is switched on and off is sometimes unreliable, namely, the transmission of a secondary circuit is possibly generated under the condition that the disconnecting link is not in place, so that the background monitoring signal cannot be the basis for the in-place switching on and off of the disconnecting link.

There are many reasons for the fact that the switch of the GIS device is not in place, and most of the reasons can be attributed to mechanical problems. Under normal conditions, the state of the knife switch opening and closing in place is a state of stress balance and energy balance, namely, the loop is electrified, the motor works and transmits the current to the knife switch mechanism to act, the loop is powered off, the motor stops, the mechanism runs out of the rest stroke under the actions of inertia, mechanical resistance, a buffer device and the like, and the current just reaches the position where the opening and closing are in place, and the operation function and the resistance function of the knife switch opening and closing are matched under the condition. However, with long-time operation and operation, due to reasons such as mechanical part abrasion, mechanical resistance, component jamming and buffer device failure, the opening and closing operation function of the mechanism is not enough to counteract the resistance work in the complete stroke of the disconnecting link, and the disconnecting link may be in a state that the opening and closing are not in place, namely, in a half-opening and closing position. In addition, due to the fact that the control loop is abnormal, the action or finishing time of the motor is incorrect, the mismatching of the operation power and the resistance power in the travel process of the disconnecting link is caused, and the fact that the disconnecting link is not switched on or off in place is also possible.

Therefore, the GIS equipment can better improve the problems.

The GIS device of the present application will be described with reference to the accompanying drawings.

Fig. 1 is a schematic partial structure diagram of a GIS device in an embodiment of the present application; fig. 2 is an enlarged schematic view of a partial structure of the GIS device shown in fig. 1; fig. 3 is a schematic partial structure diagram of a GIS device in another embodiment of the present application; fig. 4 is an enlarged schematic view of a partial structure of the GIS device shown in fig. 3.

For the purpose of illustration, only the structures described in connection with the present application are illustrated in the drawings.

Referring to fig. 1, a GIS device 100 disclosed in at least one embodiment of the present application includes a device body 10, a disconnecting link, and a transmission link 30. The disconnecting link comprises an isolation disconnecting link and a grounding disconnecting link, is arranged in the equipment body 10, is an important device which is indispensable for the GIS equipment 100 and is used for changing the system operation mode and maintaining the isolation, and the operation condition of the disconnecting link directly influences the safety of switching operation and is extremely important for ensuring the safe and stable operation of a power grid. The transmission crank arm 30 is connected to the disconnecting link in a transmission manner and is used for changing the switching-on and switching-off positions of the disconnecting link.

Specifically, one end of the transmission crank arm 30 is rotatably connected to the device body 10, and extends into the device body 10 to be connected to the disconnecting link in a transmission manner, so as to drive the disconnecting link to switch between a switching-on position and a switching-off position.

The transmission crank arm 30 is provided with a positioning hole 31. The positioning hole 31 is formed through the transmission lever 30 from the transmission lever 30 toward the apparatus body 10, and may have a circular or prismatic cross-sectional shape. In the present embodiment, the cross-sectional shape of the positioning hole 31 is circular.

Referring to fig. 2, in addition, the device body 10 is provided with a positioning groove 11 and a separating groove 12, and the outlines of the positioning groove 11 and the separating groove 12 are matched with the outline of the positioning hole 31. For example, in the embodiment of the present application, the outlines of the positioning groove 11 and the positioning groove 12 are both circular to match the cross-sectional shape of the positioning hole 31.

Further, on a path along which the transmission link 30 rotates about an axial direction relative to the apparatus body 10, there are a position where the engaging groove 11 can be aligned with the positioning hole 31 and a position where the indexing groove 12 can be aligned with the positioning hole 31. That is, the center point of the positioning groove 11 and the center point of the positioning groove 12 are both located on a circumference which takes the rotation center of the transmission crank arm 30 as the center of circle and the distance between the rotation center and the center point of the positioning hole 31 as the radius.

In practical application, when the positioning slot 11 is aligned with the positioning hole 31, the knife switch is at the switch-on position; when the separating slot 12 is aligned with the positioning hole 31, the knife switch is in the switch separating position. That is, when the central axis of the positioning slot 11 coincides with the central axis of the positioning hole 31, the knife switch is in the switch-on position; when the central axis of the separating slot 12 is coincident with the central axis of the positioning hole 31, the disconnecting link is in the disconnecting position.

In some embodiments, the operator can judge whether the knife switch is switched on or off by directly observing whether the positioning hole 31 is aligned with the on-position slot 11, and judge whether the knife switch is switched off or off by directly observing whether the positioning hole 31 is aligned with the off-position slot 12. In other embodiments, whether the knife switch is switched on or off can be determined by whether the alignment tool, such as the alignment post, can be inserted into the positioning hole 31 and the on-position slot 11 in sequence, and whether the knife switch is switched off or off can be determined by whether the alignment tool can be inserted into the positioning hole 31 and the off-position slot 12 in sequence. It should be noted that the size of the alignment column here matches the aperture of the positioning hole 31 and the groove diameters of the positioning groove 11 and the indexing groove 12. Therefore, whether the disconnecting link is switched on or off in place can be accurately judged, and therefore the GIS equipment 100 is prevented from being in fault.

The inventor discovers that in the process of actually operating the GIS equipment 100, the accuracy of the knife switch position judgment is greatly improved, but the position of the knife switch at the top of the GIS is higher, and the GIS equipment needs to be manually climbed, so that the GIS equipment is painstaking and low in efficiency. Secondly, high altitude construction can have the danger that operating personnel falls and injures. Then, once the alignment tool is mistakenly left in the alignment hole, the equipment can be damaged. In addition, if the operator accidentally touches the air pipe of the equipment in the operation process, the equipment can be damaged.

Referring to fig. 3, in some embodiments, the GIS device 100 further includes a detection component 50 coupled to the driving lever 30, and the detection component 50 is configured to detect a distance between the driving lever 30 and the device body 10 along an axial direction of the positioning hole 31 to determine a position of the knife switch.

Further, a first distance is formed between the groove bottom of the positioning groove 11 and the transmission crank arm 30, a second distance is formed between the groove bottom of the dividing groove 12 and the transmission crank arm 30, and a third distance is formed between the surface of the device body 10 and the transmission crank arm 30.

Specifically, in practical applications, when the distance detected by the detecting component 50 is the first distance, the knife switch is at the switch-on position; when the distance detected by the detection component 50 is the second distance, the disconnecting link is in the disconnecting position; when the distance detected by the detection component 50 is the third distance, the disconnecting link is not switched on and off in place, and an operator needs to follow up in time for processing.

In some embodiments, detection assembly 50 comprises a rangefinder comprising at least one of an ultraviolet infrared rangefinder, an ultrasonic rangefinder. The ultraviolet infrared distance meter receives ultraviolet infrared light through transmitting, and achieves the purpose of testing the distance between the transmission connecting lever 30 and the equipment body 10, and the ultrasonic distance meter achieves the purpose of testing the distance between the transmission connecting lever 30 and the equipment body 10 through transmitting structure ultrasonic waves. In the embodiment of the application, the distance measuring instrument is a purple infrared distance measuring instrument.

It is to be understood that the above description is intended to be illustrative only and is not intended to be limiting. The rangefinder may also be a phase method rangefinder, for example.

In addition, the detecting unit 50 has an acoustic display unit, which is connected to the distance measuring device via signals, and is used to read the distance between the transmission crank arm 30 and the device body 10. The detecting unit 50 may also have a light display unit connected to the distance measuring device for displaying the distance between the driving lever 30 and the device body 10. The detection assembly 50 may also have both an audio display assembly and an optical display assembly. So, operating personnel can carry out the detection whether the switch-on/off targets in place without climbing to equipment to both protected operating personnel's personal safety, also avoided the damage of equipment.

Further, the detection component 50 comprises a networking component, which is signal connected to the range finder for sending the test result to the mobile terminal. Specifically to in the practical application, after the distancer detects the result, send the testing result to the networking subassembly, the networking subassembly receives and handles the back, sends the testing result to mobile terminal again. The mobile terminal comprises a mobile phone, a computer and the like of an operator. Therefore, whether the disconnecting link is switched on or off in place can be measured in real time, and the detection operation of operators is extremely convenient.

Further, to increase the operational duration of the detection assembly 50, in some embodiments, the detection assembly 50 further comprises a solar assembly connected to the rangefinder for supplying power thereto. In particular to some embodiments, the solar module comprises a solar panel, and the solar panel can absorb sunlight and convert the sunlight into electric energy to be provided to the distance measuring instrument for detection.

It is to be understood that the above description is intended to be illustrative only and is not intended to be limiting.

Referring to fig. 4, further, the GIS device 100 further includes a fixing member 70, and opposite ends of the fixing member 70 are respectively connected to the actuating crank 30 and the detecting member 50 to fasten the detecting member 50 to the actuating crank 30. In particular, in some embodiments, the fixing assembly 70 includes a first fixing member 71 and a second fixing member 72, the first fixing member 71 is connected to the driving crank 30, and the second fixing member 72 is connected to the detecting assembly 50 and detachably connected to the first fixing member 71 to provide a fastening force to the detecting assembly 50 toward the driving crank 30.

Alternatively, the first fixing member 71 may be a "U" shaped buckle, with the opening facing the second fixing member 72. The second fixing member 72 may also be a "U" shaped buckle, with the opening facing the first fixing member 71. The detection component 50 and the transmission crank arm 30 are respectively clamped in a buckle, the two buckles are oppositely arranged and are fixedly connected through threads to seal respective openings, and therefore the detection component 50 is fastened on the transmission crank arm 30.

According to the GIS equipment 100, the positioning hole 31 in the transmission crank arm 30 and the closing groove 11 and the separating groove 12 in the equipment body 10 are compared, whether the disconnecting link is closed or opened in place can be accurately judged, and accidents of the GIS equipment 100 are effectively avoided. In addition, through the setting of determine module 50, can need not climb GIS equipment 100, just can judge whether the switch-on/off targets in place, greatly made things convenient for operating personnel's detection operation.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A GIS device, comprising:

an apparatus body;

the disconnecting link is arranged in the equipment body; and

2. The GIS device of claim 1 wherein the groove profiles of the registration groove and the indexing groove are circular to match the hole profile of the indexing hole.

3. The GIS device of claim 1, further comprising a detection component coupled to the transmission crank arm, wherein the detection component is configured to detect a distance between the transmission crank arm and the device body along an axial direction of the positioning hole to determine a position of the disconnecting link;

4. The GIS device of claim 3 wherein the detection component comprises a range finder comprising at least one of an ultraviolet infrared range finder, an ultrasonic range finder.

5. The GIS device of claim 4, wherein the detection assembly comprises an audio display assembly in signal connection with the distance meter for reading the distance between the transmission crank arm and the device body; and/or

6. The GIS device of claim 4, wherein the detection component comprises a networking component in signal connection with the range finder for sending the test results to a mobile terminal.

7. The GIS device of claim 4 wherein the detection assembly further comprises a solar assembly connected to the rangefinder for supplying power thereto.

8. The GIS device of claim 3 further comprising a securing assembly, opposite ends of the securing assembly being connected to the actuating crank and the sensing assembly, respectively, to secure the sensing assembly to the actuating crank.

9. The GIS device of claim 8 wherein the fixing assembly includes a first fixing member and a second fixing member, the first fixing member being coupled to the driving crank arm, the second fixing member being coupled to the sensing assembly and being detachably coupled to the first fixing member to provide the sensing assembly with a fastening force toward the driving crank arm.

10. The GIS device of claim 9 wherein the first mount is threadably connected to the second mount.