CN112951682B - Integrated combination device of breaker isolating switch - Google Patents
Integrated combination device of breaker isolating switch Download PDFInfo
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- CN112951682B CN112951682B CN202110122802.XA CN202110122802A CN112951682B CN 112951682 B CN112951682 B CN 112951682B CN 202110122802 A CN202110122802 A CN 202110122802A CN 112951682 B CN112951682 B CN 112951682B
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- connecting rod
- rod
- fixed contact
- isolation
- isolating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
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- Electromagnetism (AREA)
- Gas-Insulated Switchgears (AREA)
Abstract
The application provides an integrated combination device of a breaker isolating switch, which comprises a first isolating mechanism, a first connecting rod, a second isolating mechanism, an operating connecting rod, an executing mechanism, a conductive connecting rod, a moving contact, a fixed contact fixing rod and metal scribing, wherein the first connecting rod is connected with the operating connecting rod; one end of the first connecting rod is connected with the first isolation mechanism, and the other end of the first connecting rod is connected with the second connecting rod; the first connecting rod is connected with the second isolation mechanism through the second connecting rod; one end of the operation connecting rod is connected with the second connecting rod, and the other end of the operation connecting rod is connected with the executing mechanism; one end of the conductive connecting rod is connected with the second connecting rod, and the other end of the conductive connecting rod is connected with the movable contact; one end of the fixed contact fixing rod is fixed on the switch cabinet, and the other end of the fixed contact fixing rod is connected with the fixed contact; the metal scribing is vertically fixed on the fixed contact fixing rod. The isolating switch and the circuit breaker are designed into an integrated element, the structure is simplified, and the reliability of system operation is improved while the cost is reduced.
Description
Technical Field
The application relates to the technical field of electrical switch cabinet devices, in particular to an integrated combination device of a breaker disconnecting switch.
Background
The high-voltage switch equipment mainly plays three roles of control, protection and safety isolation in power grid control, and plays a role of bearing rated current in power transmission. The safety and stability of the high-voltage switching device directly affect the safe operation and reliable power supply of the whole power grid. Among them, the switchgear is one of the crucial high-voltage switchgear in the distribution network, and is largely applied in the power system.
The circuit breaker and the disconnector are important components in the design of the switchgear of the transformer substation, and are usually used for completing different functions independently of each other. A circuit breaker is a mechanical switching device capable of closing, carrying and breaking a current under normal circuit conditions, and carrying and breaking a current under abnormal circuit conditions for a prescribed time. When the isolating switch is in the split position, the contacts have an insulation distance and an obvious disconnection mark which meet the specified requirements; and when the switch is in the closed position, the switch device can bear the current under the normal loop condition and the current under the abnormal condition in the specified time.
The switch cabinet of the traditional separation type breaker and the disconnecting switch is poor in stability during working operation, and the operation stability of a transformer substation is directly influenced. And it is difficult to perform synchronous actions, resulting in an increase in space occupation.
Disclosure of Invention
The application provides an integrated combination device of circuit breaker isolator to solve the problem that the space occupation grow and the operation stability is insufficient that are difficult to synchronous action and lead to in traditional cubical switchboard interrupt circuit breaker and the isolator operation.
The application provides an integrated combination device of a breaker isolating switch, which comprises a first isolating mechanism, a first connecting rod, a second isolating mechanism, an operating connecting rod, an executing mechanism, a conductive connecting rod, a moving contact, a fixed contact fixing rod and metal scribing, wherein the first connecting rod is connected with the operating connecting rod;
one end of the first connecting rod is connected with the first isolation mechanism, and the other end of the first connecting rod is connected with the second connecting rod; the first connecting rod is connected with the second isolation mechanism through the second connecting rod; one end of the operation connecting rod is connected with the second connecting rod, and the other end of the operation connecting rod is connected with the executing mechanism; one end of the conductive connecting rod is connected with the second connecting rod, and the other end of the conductive connecting rod is connected with the moving contact; one end of the fixed contact fixing rod is fixed on the switch cabinet, and the other end of the fixed contact fixing rod is connected with the fixed contact; the metal scribing is vertically fixed on the fixed contact fixing rod.
Optionally, a chute is formed on the first connecting rod, the metal scribe is inserted into the chute, and the metal scribe is connected with the first connecting rod smoothly.
Optionally, the device further comprises an insulation connecting part, wherein the first connecting rod is connected with the second connecting rod through the insulation connecting part.
Optionally, the first isolation mechanism includes a first isolation switch blade, a first conductive rod and a first insulator, and the first isolation switch blade is fixedly connected with the first insulator; one end of the first conductive rod is connected with the first isolation knife in a smooth manner, and the other end of the first conductive rod is connected with the first connecting rod.
Optionally, the second isolation mechanism includes a second isolation switch blade, a second conductive rod and a second insulator, where the second isolation switch blade is fixedly connected with the second insulator; one end of the second conductive rod is connected with the second isolation knife in a smooth manner, and the other end of the second conductive rod is connected with the second connecting rod.
Optionally, the actuating mechanism comprises a hinge part, and the actuating mechanism is connected with the operation connecting rod through the hinge part.
According to the technical scheme, the integrated combination device of the disconnecting switch of the circuit breaker comprises a first disconnecting mechanism, a first connecting rod, a second disconnecting mechanism, an operation connecting rod, an executing mechanism, a conductive connecting rod, a moving contact, a fixed contact fixing rod and metal scribing; one end of the first connecting rod is connected with the first isolation mechanism, and the other end of the first connecting rod is connected with the second connecting rod; the first connecting rod is connected with the second isolation mechanism through the second connecting rod; one end of the operation connecting rod is connected with the second connecting rod, and the other end of the operation connecting rod is connected with the executing mechanism; one end of the conductive connecting rod is connected with the second connecting rod, and the other end of the conductive connecting rod is connected with the moving contact; one end of the fixed contact fixing rod is fixed on the switch cabinet, and the other end of the fixed contact fixing rod is connected with the fixed contact; the metal scribing is vertically fixed on the fixed contact fixing rod. The isolating switch and the circuit breaker are designed into an integrated element, the structure is simplified, and the reliability of system operation is improved while the cost is reduced. The problems that space occupation is large and operation stability is insufficient due to the fact that synchronous actions are difficult to achieve in operation of a circuit breaker and a disconnecting switch in a traditional switch cabinet can be effectively solved. The switch cabinet is suitable for switch cabinets under various voltage levels, and is particularly suitable for switch cabinet installation occasions with poor environmental conditions, small space and other positions.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic diagram of a circuit breaker and a disconnecting switch in the present application;
fig. 2 is a schematic diagram of a circuit breaker with a disconnecting switch closed;
fig. 3 is a schematic diagram of the circuit breaker and the disconnecting switch in the present application.
Detailed Description
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the present application. Merely as examples of systems and methods consistent with some aspects of the present application as detailed in the claims.
The integrated combination device of the breaker isolating switch comprises a first isolating mechanism 1, a first connecting rod 2, a second connecting rod 3, a second isolating mechanism 4, an operating connecting rod 5, an executing mechanism 6, a conductive connecting rod 7, a moving contact 8, a fixed contact 9, a fixed contact fixing rod 10 and a metal scribing 15; one end of the first connecting rod 2 is connected with the first isolation mechanism 1, and the other end of the first connecting rod is connected with the second connecting rod 3; the first connecting rod 2 is connected with the second isolation mechanism 4 through the second connecting rod 3; one end of the operation connecting rod 5 is connected with the second connecting rod 3, and the other end is connected with the executing mechanism 6; one end of the conductive connecting rod 7 is connected with the second connecting rod 3, and the other end is connected with the movable contact 8; one end of the fixed contact fixing rod 10 is fixed on the switch cabinet, and the other end is connected with the fixed contact 9; the metal scribing 15 is vertically fixed on the fixed contact fixing rod 10. The actuating mechanism 6 comprises a hinge part, the actuating mechanism 6 is connected with the operation connecting rod 5 through the hinge part, and the operation connecting rod 5 drives the first connecting rod 2 and the second connecting rod 3 to execute corresponding actions.
Further, the first isolation mechanism 1 comprises a first isolation switch blade 11, a first conducting rod 12 and a first insulator 13, wherein the first isolation switch blade 11 is fixedly connected with the first insulator 13; one end of the first conductive rod 12 is connected with the first isolating blade 11 in a smooth manner, and the other end is connected with the first connecting rod 2. The second isolation mechanism 4 comprises a second isolation switch blade 41, a second conducting rod 42 and a second insulator 43, and the second isolation switch blade 41 is fixedly connected with the second insulator 43; one end of the second conductive rod 42 is connected with the second isolating blade 41 in a smooth manner, and the other end is connected with the second connecting rod 3.
The integrated combination device provided by the application skillfully fuses the circuit breaker and the isolating switch, and the actions of the circuit breaker and the isolating switch are continuous, so that the occupation of the plane space is effectively saved. The specific working process is as follows: referring to fig. 1, a schematic structural diagram of an integrated assembly of a circuit breaker and a disconnecting switch is shown, wherein the circuit breaker and the disconnecting switch are both in a closed state. The moving contact 8 and the fixed contact 9 are closed. The second connecting rod 3 and the first connecting rod 2 which are fixedly connected with the operation connecting rod 5 are driven to move downwards by the action of the executing mechanism 6. Because the fixed contact fixing rod 10 and the fixed contact 9 are fixed, the movable contact 8 is driven to move downwards, and the movable contact and the fixed contact are separated to complete the opening and closing of a loop. At this time, referring to fig. 2, for a schematic structure diagram of the circuit breaker being opened and the disconnecting switch being closed in the present application, the first conductive rod 12 connected to the first connecting rod 2 is still in contact with the first disconnecting switch blade 11 (the first disconnecting switch is in a closed state), and the actuating mechanism 6 continues to drive the second connecting rod 3 and the first connecting rod 2 to move downward until the first conductive rod 12 is separated from the first disconnecting switch blade 11, so as to complete the action of disconnecting the disconnecting switch. Likewise, the second conductive rod 42 is disengaged from the second isolating blade 41. So far, see fig. 3 for the end of the whole process. The integrated combination device completes the reliable actions of the breaker and the isolating switch. Closed loop and vice versa. The actuating mechanism 6 drives the second connecting rod 3 and the first connecting rod 2 connected with the operation connecting rod 5 to move upwards, the first conducting rod 12 contacts the first isolating switch blade 11 and the second conducting rod 42 contacts the second isolating switch blade 41 (the closing of the isolating switch is completed), then the actuating mechanism 6 continues to act, and finally the moving contact 8 is connected with the fixed contact 9 (the closing of the circuit breaker) to complete the connection of a loop.
Further, a chute is formed in the first connecting rod 2, the metal scribe 15 is inserted into the chute and slides in the chute, and the metal scribe 15 is connected with the first connecting rod 2 smoothly. The first connecting rod 2 and the second connecting rod 3 are provided with insulating connecting parts 14, the first connecting rod 2 is connected with the second connecting rod 3 through the insulating connecting parts 14, the first connecting rod 2 and the second connecting rod 3 are ensured to be non-conductive, and current only flows into the contact from the metal scribing 15.
Further, the first insulator 13 protects the busbar, the busbar is connected with the first isolation switch blade 11, current flows from the busbar to the first isolation switch blade 11, enters the first connecting rod 2 through the connected upper first conducting rod 12, and completes the opening and closing action of the loop at the moving contact point through the metal scribing 15. And then flows into the lower second conductive rod 42 through the conductive connecting rod 7, and finally flows into the cable connected with the second isolating blade 41.
Further, S1 in the figure indicates the length of the first isolation blade 11 from the far end of the first conductive rod 12 and the length of the second isolation blade 41 from the far end of the second conductive rod 42 when the moving and static contacts are closed, that is, the distance that the isolation switch is opened in the conventional sense; in the figure, D1 represents the distance between the moving contact and the static contact after the breaker is safely opened. In order to realize opening, the breaker acts firstly; when the switch is closed, the circuit breaker acts. It is necessary to ensure that S1> D1 at the time of actual production installation.
The application provides an integrated combination device of a breaker isolating switch, which comprises a first isolating mechanism, a first connecting rod, a second isolating mechanism, an operating connecting rod, an executing mechanism, a conductive connecting rod, a moving contact, a fixed contact fixing rod and metal scribing, wherein the first connecting rod is connected with the operating connecting rod; one end of the first connecting rod is connected with the first isolation mechanism, and the other end of the first connecting rod is connected with the second connecting rod; the first connecting rod is connected with the second isolation mechanism through the second connecting rod; one end of the operation connecting rod is connected with the second connecting rod, and the other end of the operation connecting rod is connected with the executing mechanism; one end of the conductive connecting rod is connected with the second connecting rod, and the other end of the conductive connecting rod is connected with the moving contact; one end of the fixed contact fixing rod is fixed on the switch cabinet, and the other end of the fixed contact fixing rod is connected with the fixed contact; the metal scribing is vertically fixed on the fixed contact fixing rod. The isolating switch and the circuit breaker are designed into an integrated element, the structure is simplified, and the reliability of system operation is improved while the cost is reduced. The problems that space occupation is large and operation stability is insufficient due to the fact that synchronous actions are difficult to achieve in operation of a circuit breaker and a disconnecting switch in a traditional switch cabinet can be effectively solved. The switch cabinet is suitable for switch cabinets under various voltage levels, and is particularly suitable for switch cabinet installation occasions with poor environmental conditions, small space and other positions.
The foregoing detailed description of the embodiments is merely illustrative of the general principles of the present application and should not be taken in any way as limiting the scope of the invention. Any other embodiments developed in accordance with the present application without inventive effort are within the scope of the present application for those skilled in the art.
Claims (2)
1. The integrated combination device of the breaker isolating switch is characterized by comprising a first isolating mechanism (1), a first connecting rod (2), a second connecting rod (3), a second isolating mechanism (4), an operating connecting rod (5), an actuating mechanism (6), a conductive connecting rod (7), a moving contact (8), a fixed contact (9), a fixed contact fixing rod (10) and a metal scribing (15);
one end of the first connecting rod (2) is connected with the first isolation mechanism (1), and the other end of the first connecting rod is connected with the second connecting rod (3); the first connecting rod (2) is connected with the second isolation mechanism (4) through the second connecting rod (3); one end of the operation connecting rod (5) is connected with the second connecting rod (3), and the other end of the operation connecting rod is connected with the executing mechanism (6); one end of the conductive connecting rod (7) is connected with the second connecting rod (3), and the other end of the conductive connecting rod is connected with the moving contact (8); one end of the fixed contact fixing rod (10) is fixed on the switch cabinet, and the other end of the fixed contact fixing rod is connected with the fixed contact (9); the metal scribing (15) is vertically fixed on the fixed contact fixing rod (10);
the first isolation mechanism (1) comprises a first isolation switch blade (11), a first conducting rod (12) and a first insulator (13), and the first isolation switch blade (11) is fixedly connected with the first insulator (13); one end of the first conducting rod (12) is connected with the first isolation switch blade (11) in a smooth manner, and the other end of the first conducting rod is connected with the first connecting rod (2);
the second isolation mechanism (4) comprises a second isolation switch blade (41), a second conducting rod (42) and a second insulator (43), and the second isolation switch blade (41) is fixedly connected with the second insulator (43); one end of the second conducting rod (42) is connected with the second isolating switch blade (41) in a smooth manner, and the other end of the second conducting rod is connected with the second connecting rod (3);
a chute is arranged on the first connecting rod (2), the metal scribing piece (15) is inserted into the chute, and the metal scribing piece (15) is in smooth connection with the first connecting rod (2);
the device also comprises an insulating connecting part (14), wherein the first connecting rod (2) is connected with the second connecting rod (3) through the insulating connecting part (14).
2. An integrated combination of disconnectors for circuit breakers according to claim 1, characterized in that the actuator (6) comprises a hinge, through which the actuator (6) is connected to the operating link (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122802.XA CN112951682B (en) | 2021-01-29 | 2021-01-29 | Integrated combination device of breaker isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110122802.XA CN112951682B (en) | 2021-01-29 | 2021-01-29 | Integrated combination device of breaker isolating switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112951682A CN112951682A (en) | 2021-06-11 |
| CN112951682B true CN112951682B (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110122802.XA Active CN112951682B (en) | 2021-01-29 | 2021-01-29 | Integrated combination device of breaker isolating switch |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202268321U (en) * | 2011-10-14 | 2012-06-06 | 常州市明及电气技术开发有限公司 | Breaker-isolating switch combination device |
| CN204167154U (en) * | 2014-10-14 | 2015-02-18 | 常熟开关制造有限公司(原常熟开关厂） | Switch cubicle |
| CN207542656U (en) * | 2017-06-22 | 2018-06-26 | 广东紫光电气有限公司 | A kind of double isolation armouring mobile vacuum high-tension switch gears of straight cutting |
| CN209328744U (en) * | 2019-01-10 | 2019-08-30 | 河南华盛隆源电气有限公司 | A kind of breaker of external switch with double-isolation |
| CN211183107U (en) * | 2019-12-31 | 2020-08-04 | 广东华德力电气有限公司 | Combined air chamber of disconnecting switch of gas-insulated switchgear breaker |
| CN112216550B (en) * | 2020-10-09 | 2024-01-09 | 南京四方致捷开关有限公司 | Column circuit breaker with built-in isolating switch |
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2021
- 2021-01-29 CN CN202110122802.XA patent/CN112951682B/en active Active
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| CN112951682A (en) | 2021-06-11 |
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