CN113903618B - 10kV outdoor electric isolation disconnecting link - Google Patents
10kV outdoor electric isolation disconnecting link Download PDFInfo
- Publication number
- CN113903618B CN113903618B CN202111219908.8A CN202111219908A CN113903618B CN 113903618 B CN113903618 B CN 113903618B CN 202111219908 A CN202111219908 A CN 202111219908A CN 113903618 B CN113903618 B CN 113903618B
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- CN
- China
- Prior art keywords
- contact
- moving contact
- motor
- rotating wheel
- insulating
- 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.)
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Links
- 238000002955 isolation Methods 0.000 title claims description 15
- 230000003068 static effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/003—Earthing switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/26—Air-break switches for high tension without arc-extinguishing or arc-preventing means with movable contact that remains electrically connected to one line in open position of switch
Abstract
The invention relates to the technical field of isolating switches, and discloses a 10kV outdoor electric isolating switch. The invention comprises a base, a moving contact, a fixed contact, a grounding contact and an electric operating mechanism, wherein the electric operating mechanism comprises a motor, a rotating wheel and an insulating connecting rod, the grounding contact, the moving contact and the fixed contact are sequentially arranged on the base, the moving contact is arranged on the base through an insulating supporting piece, the rotating wheel is connected with the rotating wheel through the motor, the rotating wheel is connected with the insulating connecting rod, the insulating connecting rod is connected with the tail part of the moving contact, and the moving contact is fixed on the top of the insulating supporting piece, so that the moving contact, the insulating connecting rod and the rotating wheel form a lever structure, and the lever structure is driven by the motor when the motor is driven, so that the other end of the moving contact is thrown to a closing position. The invention has simple structure, not only can realize the disconnection and disconnection of the disconnecting link, but also can rapidly realize the grounding operation when the disconnecting link is disconnected, thereby saving time and labor and greatly reducing the operation risk of operators.
Description
Technical Field
The invention relates to the technical field of isolating switches, in particular to a 10kV outdoor electric isolating switch.
Background
In a 10kV power distribution network, a 10kV isolation disconnecting link is additionally arranged on the side, close to a line, of a fuse. At the same vertical level, a plurality of devices such as isolating disconnecting switches, fuses, transformer stands (circuit breaker stands) and the like are usually arranged, and have enough safety distances from each other, which leads to a high distance between the additionally arranged 10kV isolating disconnecting switch and the ground.
In the prior art, an isolating knife switch is operated manually, time and labor are wasted, and in order to solve the problem, the prior art provides a 6-10 kV electric isolating switch, the patent application number of which is 200910147088.9, the electric isolating switch comprises an isolating switch fixed contact, a moving contact, an electric operating mechanism, a rotating shaft, a movable pull rod insulator and a supporting insulator, and the electric operating mechanism comprises a motor and a speed changing device; the speed change device consists of a pinion, a large gear, a worm gear rod, a micro switch and a transmission device; the motor rotating shaft is connected with a pinion, the pinion is connected with a worm gear rod, the worm gear rod is connected with a large gear, the large gear is connected with a transmission device, and the transmission device is connected with an electric operating handle on the rotating shaft of the isolating switch. The mode of controlling the knife switch is as follows: when the electric operating mechanism obtains the power-on and power-off signals, the motor of the electric operating mechanism is electrified to operate, the pinion, the worm gear rod and the large gear are driven to rotate, and when the operation reaches the specified position, the micro switch acts to disconnect the power supply of the motor, and the motor stops rotating. The isolating switch performs automatic opening and closing operations according to the regulations.
However, the electric isolating switch is complex in structure, and can only realize disconnecting link opening and closing, and cannot further realize grounding operation after disconnecting link opening.
Disclosure of Invention
The invention provides a 10kV outdoor electric isolating switch, which solves the technical problems that the existing electric isolating switch is complex in structure, can only realize the switch opening and closing, and cannot further realize the grounding operation after the switch opening.
The invention provides a 10kV outdoor electric isolation disconnecting link, which comprises a base, a grounding contact, a moving contact, a fixed contact and an electric operating mechanism;
the grounding contact and the fixed contact are fixed on the base, and the moving contact is positioned between the grounding contact and the fixed contact and is arranged on the base through an insulating support piece;
the electric operating mechanism comprises a motor, a rotating wheel and an insulating connecting rod, wherein the motor is connected with the rotating wheel, the rotating wheel is connected with one end of the insulating connecting rod, the other end of the insulating connecting rod is connected with the tail of one end of a moving contact, one end of the moving contact is fixed on the top of an insulating supporting piece, the moving contact, the insulating connecting rod and the rotating wheel form a lever structure, and the lever structure is driven during motor driving, so that the other end of the moving contact is thrown to a closing position.
According to one implementation manner of the invention, the center of the insulating support is hollowed out, and the rotating wheel and the insulating connecting rod are arranged at the center hollowed-out part of the insulating support.
According to one implementation mode of the invention, the base is provided with a through hole communicated with the hollow center of the insulating support piece, the motor is arranged at the bottom of the base, and the rotating shaft of the motor penetrates through the through hole to be connected with the rotating wheel.
According to one implementation manner of the invention, the grounding contact, the moving contact and the fixed contact are arranged at equal intervals along the axial direction of the base.
According to one implementation mode of the invention, the grounding contact and the static contact are both provided with a connecting part which is matched and jointed with the other end of the moving contact, and the other end of the moving contact is connected with the connecting part when being thrown to a closing position.
According to one implementation manner of the invention, the connecting part is a first slot, and the other end of the moving contact is in matched engagement with the first slot.
According to one possible mode of the invention, the other end of the movable contact is provided with a second slot, and the second slot is in matched engagement with the connecting part.
According to one realisable form of the invention, the electrically operated mechanism further comprises an operator box for controlling the movement of the motor.
According to one possible embodiment of the invention, the motor is connected to the control box by means of a cable.
According to one possible implementation of the invention, the table top of the operating box is provided with a power supply introduction interface for connecting a mobile power supply.
From the above technical scheme, the invention has the following advantages:
the grounding contact, the moving contact and the fixed contact are sequentially arranged on the base, wherein the moving contact is arranged on the base through the insulating support piece, the rotating wheel is connected with the insulating connecting rod through the motor, the insulating connecting rod is connected with the tail part of the moving contact, and the moving contact is fixed on the top of the insulating support piece, so that the moving contact, the insulating connecting rod and the rotating wheel form a lever structure, and the lever structure is driven by the motor during driving by utilizing the lever principle, so that the other end of the moving contact is thrown to a closing position. The invention has simple structure, not only can realize the disconnection and disconnection of the disconnecting link, but also can rapidly realize the grounding operation when the disconnecting link is disconnected, thereby saving time and labor and greatly reducing the operation risk of operators.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of a 10kV outdoor electric isolation disconnecting link according to an alternative embodiment of the invention;
FIG. 2 is a schematic illustration of the connection of components of a lever structure according to an alternative embodiment of the present invention;
fig. 3 is a schematic structural view of a 10kV outdoor electric isolating switch with an operating box according to an alternative embodiment of the present invention.
The drawings are as follows:
1-a base; 2. a ground contact; 3-a moving contact; 4-a fixed contact; 5-insulating supports; 6-an electric operating mechanism; 7-a motor; 8-rotating wheels; 9-insulating connecting rods; 10-an operation box; 11-cables; 12-a power supply introduction interface; 13-indicator lights.
Detailed Description
The embodiment of the invention provides a 10kV outdoor electric isolating switch, which is used for solving the technical problems that the existing electric isolating switch is complex in structure, can only realize the switch opening and closing, and cannot further realize the grounding operation after the switch opening.
In order to make the objects, features and advantages of the present invention more comprehensible, the technical solutions in the embodiments of the present invention are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, the 10kV outdoor electric isolation disconnecting switch provided by the invention comprises a base 1, a ground contact 2, a moving contact 3, a fixed contact 4 and an electric operating mechanism 6;
the grounding contact 2 and the fixed contact 4 are fixed on the base 1, and the moving contact 3 is positioned between the grounding contact 2 and the fixed contact 4 and is arranged on the base 1 through an insulating support 5;
the electric operating mechanism 6 comprises a motor 7, a rotating wheel 8 and an insulating connecting rod 9, wherein the motor 7 is connected with the rotating wheel 8, the rotating wheel 8 is connected with one end of the insulating connecting rod 9, the other end of the insulating connecting rod 9 is connected with the tail of one end of the moving contact 3, one end of the moving contact 3 is fixed on the top of the insulating supporting piece 5, so that the moving contact 3, the insulating connecting rod 9 and the rotating wheel 8 form a lever structure, and the lever structure is driven when the motor 7 is driven, so that the other end of the moving contact 3 is thrown to a closing position.
The structure of the electric operating mechanism 6 is quite simple, the operation is convenient, and the situation that the electric operating mechanism 6 is in misoperation and refused operation can be effectively avoided.
In one embodiment, as shown in fig. 1, the ground contact 2 is located on the left side of the moving contact 3, and the stationary contact 4 is located on the right side of the moving contact 3. In specific implementation, the motor 7 is driven, the rotating wheel 8 is driven by the motor 7 to rotate anticlockwise, the rotating wheel 8 drives the insulating connecting rod 9, and the moving contact 3 is thrown to a closing position by utilizing a lever structure, so that the moving contact 3 and the fixed contact 4 are closed; when the grounding operation is carried out, the motor 7 is driven, the rotating wheel 8 is driven to rotate clockwise by the motor 7, the rotating wheel 8 drives the insulating connecting rod 9, the moving contact 3 is thrown to be separated from the fixed contact 4 by utilizing the lever structure, and meanwhile, the moving contact 3 and the grounding contact 2 are switched on to form a grounding state.
According to the invention, the rotating wheel 8 is connected through the motor 7, the rotating wheel 8 is connected with the insulating connecting rod 9, the insulating connecting rod 9 is connected with the tail part of the moving contact 3, and the moving contact 3 is fixed on the top of the insulating support piece 5, so that the moving contact 3, the insulating connecting rod 9 and the rotating wheel 8 form a lever structure, and the lever structure is driven when the motor 7 is driven by utilizing the lever principle, so that the other end of the moving contact 3 is swung to a closing position. The invention has simple structure, not only can realize the disconnection and disconnection of the disconnecting link, but also can rapidly realize the grounding operation when the disconnecting link is disconnected, thereby saving time and labor and greatly reducing the operation risk of operators.
In one possible implementation manner, the insulating support 5 is hollow in the center, and the rotating wheel 8 and the insulating connecting rod 9 are disposed at the hollow center of the insulating support 5.
Through the arrangement of the structure, the movement of the rotating wheel 8 and the insulating connecting rod 9 can be effectively prevented from affecting other contacts, and the space can be effectively saved.
In one implementation manner, the base 1 is provided with a through hole communicated with the hollow center of the insulating support 5, the motor 7 is arranged at the bottom of the base 1, and a rotating shaft of the motor 7 passes through the through hole and is connected with the rotating wheel 8.
By installing the motor 7 in this way, the subsequent use of the cable 11 to guide the operation of the motor 7 under the tower is facilitated.
In one possible manner, the ground contact 2, the moving contact 3 and the fixed contact 4 are disposed at equal intervals along the axial direction of the base 1. At this time, in order to ensure that the other end of the moving contact 3 can swing to the closing position, it is necessary to set the length of the moving contact 3 equal to or greater than the distance between the ground contact 2 and the moving contact 3.
The grounding contact 2, the moving contact 3 and the fixed contact 4 may be disposed at unequal intervals along the axial direction of the base 1, but the length of the moving contact 3 is reasonably set to ensure that the other end of the moving contact 3 can swing to the closing position.
In one implementation manner, the ground contact 2 and the fixed contact 4 are both provided with a connecting portion that is in matching engagement with the other end of the moving contact 3, and the other end of the moving contact 3 is connected to the connecting portion when being thrown to a closing position.
Through the arrangement of the connecting part, the movable contact 3 can be connected with other contacts assuredly, and the reliability of the grounding operation or the closing operation of the isolation disconnecting link is ensured.
In one embodiment, the connecting portion is a first slot, and the other end of the moving contact 3 is engaged with the first slot in a matching manner. It should be noted that the shape of the first slot may be set according to the specific situation, and the embodiment of the present invention is not limited thereto.
In another embodiment, a second slot is provided at the other end of the moving contact 3, and the second slot is engaged with the connecting portion in a matching manner. It should be noted that the shape of the second slot may be set according to the specific situation, and the embodiment of the present invention is not limited thereto.
In one possible way, as shown in fig. 3, the electric operating mechanism 6 further comprises an operating box 10 for controlling the movement of the motor 7.
In one embodiment, the motor 7 is connected to the operating box 10 by a cable 11, thereby enabling the motor 7 to be guided under the tower.
In another embodiment, the motor 7 may also be connected to the operating box 10 in a wireless manner. For example, a microcontroller, a motor 7 driver and a wireless transceiver chip may be provided, which is communicatively connected to the microcontroller for transceiving wireless control signals of the operation box 10; the motor 7 driver is connected to the microcontroller for driving the motor 7 in rotation.
The electric operating mechanism 6 in the existing electric isolating switch lacks a power supply part, which cannot solve the problem of on-site power taking. To solve this problem, further, the table top of the operation box 10 is provided with a power supply introduction interface 12 for connecting a mobile power supply.
The mobile power supply is used as the power supply of the motor 7, so that the mobile power supply can be connected when in use, and the mobile power supply is recovered after the use is completed, so that the situation of misoperation in a closing state is prevented.
As an embodiment, the portable power source may be a portable battery.
Further, a corresponding indicator lamp 13 can be arranged on the table top of the operation box 10, and a knife switch and a ground knife sign are arranged beside the indicator lamp 13 and used for informing operators of the current knife switch state. For example, when the moving contact 3 is connected to the fixed contact 4, the indicator lamp 13 at the "knife switch" is lighted, indicating that it is currently in the on state, whereas when the moving contact 3 is connected to the ground contact 2, the indicator lamp 13 at the "ground knife" is lighted, indicating that it is currently in the ground state.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. The 10kV outdoor electric isolation disconnecting link is characterized by comprising a base, a grounding contact, a moving contact, a fixed contact and an electric operating mechanism;
the grounding contact and the fixed contact are fixed on the base, and the moving contact is positioned between the grounding contact and the fixed contact and is arranged on the base through an insulating support piece;
the electric operating mechanism comprises a motor, a rotating wheel and an insulating connecting rod, wherein the motor is connected with the rotating wheel, the rotating wheel is connected with one end of the insulating connecting rod, the other end of the insulating connecting rod is connected with the tail part of one end of the moving contact, and one end of the moving contact is fixed on the top of the insulating supporting piece, so that the moving contact, the insulating connecting rod and the rotating wheel form a lever structure, and the lever structure is driven by the motor when the motor is driven, so that the other end of the moving contact is thrown to a closing position;
the center of the insulating support piece is hollowed out, and the rotating wheel and the insulating connecting rod are arranged at the center hollowed-out part of the insulating support piece.
2. The 10kV outdoor electric isolation disconnecting link according to claim 1, wherein a through hole communicated with a central hollowed-out part of the insulating support piece is formed in the base, the motor is arranged at the bottom of the base, and a rotating shaft of the motor penetrates through the through hole to be connected with the rotating wheel.
3. The 10kV outdoor electric isolation switch of claim 1, wherein the ground contact, the moving contact, and the stationary contact are disposed at equal intervals along an axial direction of the base.
4. The 10kV outdoor electric isolation disconnecting link according to claim 1, wherein the grounding contact and the static contact are both provided with a connecting part which is matched and jointed with the other end of the moving contact, and the other end of the moving contact is connected with the connecting part when being thrown to a closing position.
5. The 10kV outdoor electric isolation switch of claim 4, wherein the connecting portion is a first slot, and the other end of the moving contact is matingly engaged with the first slot.
6. The 10kV outdoor electric isolating switch of claim 4, wherein a second slot is provided at the other end of the moving contact, the second slot being in mating engagement with the connecting portion.
7. The 10kV outdoor electric isolation switch of any one of claims 1-6, wherein the electric operator further comprises an operator box for controlling movement of the motor.
8. The 10kV outdoor electric isolation switch of claim 7, wherein the motor is connected to the operator box by a cable.
9. The 10kV outdoor electric isolation switch of claim 7, wherein a power supply introduction interface for connecting a mobile power supply is provided on a table top of the operation box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219908.8A CN113903618B (en) | 2021-10-20 | 2021-10-20 | 10kV outdoor electric isolation disconnecting link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111219908.8A CN113903618B (en) | 2021-10-20 | 2021-10-20 | 10kV outdoor electric isolation disconnecting link |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113903618A CN113903618A (en) | 2022-01-07 |
| CN113903618B true CN113903618B (en) | 2024-04-02 |
Family
ID=79192767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111219908.8A Active CN113903618B (en) | 2021-10-20 | 2021-10-20 | 10kV outdoor electric isolation disconnecting link |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113903618B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1845278A (en) * | 2006-03-25 | 2006-10-11 | 王亚旗 | High-voltage isolation switch |
| US20070278080A1 (en) * | 2003-11-21 | 2007-12-06 | Abb Technology Ag | Spindle Drive For A Switch Disconnector And/Or Grounding Switch |
| US20080217152A1 (en) * | 2005-11-02 | 2008-09-11 | Abb Technology Ag | High-voltage circuit breaker and switch arrangement |
| CN201877334U (en) * | 2010-12-01 | 2011-06-22 | 陈家斌 | Combined 6 to 20 kV electric isolating switch and grounding switch |
| CN108922818A (en) * | 2018-06-15 | 2018-11-30 | 广东电网有限责任公司 | Disconnecting switch and electric pole component |
| CN110867336A (en) * | 2019-11-16 | 2020-03-06 | 福州天宇电气股份有限公司 | Three-station electric isolating switch special for 40.5kV environment-friendly inflatable cabinet and control method thereof |
-
2021
- 2021-10-20 CN CN202111219908.8A patent/CN113903618B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070278080A1 (en) * | 2003-11-21 | 2007-12-06 | Abb Technology Ag | Spindle Drive For A Switch Disconnector And/Or Grounding Switch |
| US20080217152A1 (en) * | 2005-11-02 | 2008-09-11 | Abb Technology Ag | High-voltage circuit breaker and switch arrangement |
| CN1845278A (en) * | 2006-03-25 | 2006-10-11 | 王亚旗 | High-voltage isolation switch |
| CN201877334U (en) * | 2010-12-01 | 2011-06-22 | 陈家斌 | Combined 6 to 20 kV electric isolating switch and grounding switch |
| CN108922818A (en) * | 2018-06-15 | 2018-11-30 | 广东电网有限责任公司 | Disconnecting switch and electric pole component |
| CN110867336A (en) * | 2019-11-16 | 2020-03-06 | 福州天宇电气股份有限公司 | Three-station electric isolating switch special for 40.5kV environment-friendly inflatable cabinet and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113903618A (en) | 2022-01-07 |
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