CN112946467A - Switch cabinet grounding switch contact in-place detection device - Google Patents
Switch cabinet grounding switch contact in-place detection device Download PDFInfo
- Publication number
- CN112946467A CN112946467A CN202110347898.XA CN202110347898A CN112946467A CN 112946467 A CN112946467 A CN 112946467A CN 202110347898 A CN202110347898 A CN 202110347898A CN 112946467 A CN112946467 A CN 112946467A
- Authority
- CN
- China
- Prior art keywords
- grounding switch
- switch
- moving contact
- contact
- grounding
- 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.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3272—Apparatus, systems or circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3271—Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
- G01R31/3275—Fault detection or status indication
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a switch cabinet grounding switch contact in-place detection device, which is characterized by comprising the following components: the grounding switch comprises a grounding switch bracket, wherein an insulator is arranged on the grounding switch bracket, and the insulator is connected with a static contact of a grounding switch through a copper bar under the condition of ensuring a safe distance; the rotating shaft and the spring positioning column of the moving contact of the grounding switch are arranged on the grounding switch bracket, and the spring arranged on the rotating shaft and the spring positioning column are compressed and stretched in a rotating way, so that the moving contact of the grounding switch is driven to rotate, and the moving contact of the grounding switch is contacted with or separated from the static contact of the grounding switch; and an opening cam and a closing cam are arranged on the grounding switch moving contact rotating shaft through a grounding switch moving contact connecting plate, and rotate along with the rotation of the grounding switch moving contact rotating shaft. The on-off state feedback device has higher on-off state feedback precision and better timeliness, and reduces the problem of state detection lag of the grounding switch caused by idle stroke of the conventional product. Thereby solved because cubical switchboard ground protection state inaccurate incident problem that arouses.
Description
Technical Field
The invention relates to the technical field of on-line detection, in particular to a switch cabinet grounding switch contact in-place detection device.
Background
The switch cabinet grounding switch is a mechanical grounding device for guaranteeing the personal safety of operation and maintenance personnel in power failure. The current of certain time can be endured under the trouble condition such as cubical switchboard short circuit, does not pass load current under equipment normal operating condition. However, when the grounding switch is in the on state, the vacuum circuit breaker may damage the grounding switch of the switch cabinet when the vacuum circuit breaker is loaded in the working position. At present, the on-off state of the grounding switch is mostly formed by installing a travel switch at a position such as a transmission shaft, and the actual in-place condition of a grounding switch contact cannot be truly reflected, so that how to more accurately reflect the on-off state of the grounding switch becomes the key for researching the safety and grounding overhaul reliability of a switch cabinet.
Disclosure of Invention
In order to overcome the defect that the on-off state of the grounding switch cannot be accurately reflected in the prior art, the invention aims to provide the switch cabinet grounding switch contact in-place detection device.
In order to realize the purpose of the invention, the technical scheme is as follows:
a cubical switchboard earthing switch contact detection device that targets in place includes:
the grounding switch comprises a grounding switch bracket, wherein an insulator is arranged on the grounding switch bracket, and the insulator is connected with a static contact of a grounding switch through a copper bar under the condition of ensuring a safe distance;
the rotating shaft and the spring positioning column of the moving contact of the grounding switch are arranged on the grounding switch bracket, and the spring arranged on the rotating shaft and the spring positioning column are compressed and stretched in a rotating way, so that the moving contact of the grounding switch is driven to rotate, and the moving contact of the grounding switch is contacted with or separated from the static contact of the grounding switch;
the grounding switch moving contact rotating shaft is provided with an opening cam and a closing cam through a grounding switch moving contact connecting plate, and the opening cam and the closing cam rotate along with the rotation of the grounding switch moving contact rotating shaft;
when the moving contact of the grounding switch is switched off to a designated position, the switching-off cam can accurately and timely trigger the switching-off travel switch, and the switching-off travel switch reflects that the grounding switch is in a switching-off state to the switch cabinet control protection system;
when the moving contact of the grounding switch is switched on to a designated position, the switching-on cam can accurately and timely trigger the switching-off travel switch, and the switching-off travel switch reflects that the grounding switch is in a switching-on state to the switch cabinet control and protection system.
In a preferred embodiment of the present invention, an opening cam and a closing cam are respectively disposed on two sides of the grounding switch moving contact connecting plate, and openings are formed in the middle portions of the opening cam, the grounding switch moving contact connecting plate and the closing cam to form an installation channel, which is integrally installed on the grounding switch moving contact rotating shaft.
In a preferred embodiment of the invention, the opening travel switch is arranged on a rotating contact surface of the opening cam.
In a preferred embodiment of the present invention, the closing stroke switch is disposed on a rotational contact surface of the closing cam.
In a preferred embodiment of the present invention, the opening cam or the closing cam is of a water drop type structure, and the opening cam or the closing cam faces in different directions.
The invention has the beneficial effects that:
the feedback precision of the on-off state is higher, the timeliness is better, and the problem of the detection lag of the state of the grounding switch caused by the idle stroke of the existing product is reduced. Thereby solved because the inaccurate accident problem that arouses of cubical switchboard ground protection state.
Drawings
FIG. 1 is a schematic view of the final assembly structure of the present invention.
Fig. 2 is a partial structural diagram of the first embodiment of the present invention.
Fig. 3 is a partial structural schematic diagram of the present invention.
Detailed Description
The switch cabinet grounding switch contact in-place detection device shown in fig. 1-3 comprises a grounding switch bracket 2, wherein an insulator 1 is installed on the grounding switch bracket 2, and the insulator 1 is connected with a grounding switch static contact 5 through a copper bar under the condition of ensuring a safe distance.
A grounding switch moving contact rotating shaft 3 and a spring positioning column 7 are arranged on a grounding switch support 2, a spring 4 arranged on the grounding switch moving contact rotating shaft is compressed and stretched in a rotating mode through the spring positioning column 7, so that the grounding switch moving contact 6 is driven to rotate, the grounding switch moving contact 6 is in contact with or separated from a grounding switch static contact 5, and a brake-off cam 10 and a brake-on cam 11 are arranged on the grounding switch moving contact rotating shaft 3 through a grounding switch moving contact connecting plate 12.
The grounding switch moving contact connecting plate 12, the opening cam 10 and the closing cam 11 are welded to form a whole, the opening cam 10 and the closing cam 11 are arranged on two sides of the grounding switch moving contact connecting plate 12 respectively, the opening cam 10 and the closing cam 11 are of water drop type structures, and horizontal contact surfaces 10a and 11a on the side portions of the opening cam 10 and the closing cam 11 face towards different directions, so that the opening and closing state feedback accuracy can be improved.
The opening holes in the middle parts of the opening cam 10, the grounding switch moving contact connecting plate 12 and the closing cam 11 form an installation channel which is integrally installed on the grounding switch moving contact rotating shaft 3 and rotates along with the rotation of the grounding switch moving contact rotating shaft 3.
Because of having the above-mentioned structure, the working principle of the invention lies in:
when the grounding switch moving contact rotating shaft 3 is connected to an opening operation instruction, the grounding switch moving contact rotating shaft 3 drives the grounding switch moving contact 6, the opening cam 10, the closing cam 11 and the grounding switch moving contact connecting plate 12 to rotate.
When the moving contact 6 of the grounding switch is switched off to a designated position, the switching-off cam 10 can accurately and timely trigger the switching-off travel switch 8, and the switching-off travel switch 8 reflects that the grounding switch is in a switching-off state to the switch cabinet control protection system (at the moment, the switching-on and switching-off contact just has the maximum separation travel).
When the grounding switch moving contact rotating shaft 3 is connected with a closing operation instruction, the grounding switch moving contact rotating shaft 3 drives the grounding switch moving contact 6, the opening cam 10, the closing cam 11 and the grounding switch moving contact connecting plate 12 to rotate.
When the moving contact 6 of the grounding switch is switched on to a designated position, the switching-on cam 11 can accurately and timely trigger the switching-off travel switch 9, and the switching-off travel switch 9 reflects that the grounding switch is in a switching-on state (at the moment, the switching-on and switching-off contacts are just contacted) to the switch cabinet control and protection system.
The state of the contact of the grounding switch is to directly acquire the stroke of the moving contact of the grounding switch, and is not influenced by the idle stroke of the rotating shaft 3 of the moving contact of the grounding switch.
The on-off state feedback device has higher on-off state feedback precision and better timeliness, and reduces the problem of state detection lag of the grounding switch caused by idle stroke of the conventional product. Thereby solved because the inaccurate accident problem that arouses of cubical switchboard ground protection state.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (4)
1. The utility model provides a cubical switchboard earthing switch contact detection device that targets in place which characterized in that includes:
the grounding switch comprises a grounding switch bracket, wherein an insulator is arranged on the grounding switch bracket, and the insulator is connected with a static contact of a grounding switch through a copper bar under the condition of ensuring a safe distance;
the rotating shaft and the spring positioning column of the moving contact of the grounding switch are arranged on the grounding switch bracket, and the spring arranged on the rotating shaft and the spring positioning column are compressed and stretched in a rotating way, so that the moving contact of the grounding switch is driven to rotate, and the moving contact of the grounding switch is contacted with or separated from the static contact of the grounding switch;
the grounding switch moving contact rotating shaft is provided with an opening cam and a closing cam through a grounding switch moving contact connecting plate, and the opening cam and the closing cam rotate along with the rotation of the grounding switch moving contact rotating shaft;
when the moving contact of the grounding switch is switched off to a designated position, the switching-off cam can accurately and timely trigger the switching-off travel switch, and the switching-off travel switch reflects that the grounding switch is in a switching-off state to the switch cabinet control protection system;
when the moving contact of the grounding switch is switched on to a designated position, the switching-on cam can accurately and timely trigger the switching-off travel switch, and the switching-off travel switch reflects that the grounding switch is in a switching-on state to the switch cabinet control and protection system.
2. The device for detecting the in-place of the grounding switch contact of the switch cabinet as claimed in claim 1, wherein an opening cam and a closing cam are respectively disposed at two sides of the moving contact connecting plate of the grounding switch, and the opening at the middle part of each of the opening cam, the moving contact connecting plate of the grounding switch and the closing cam forms an installation channel integrally installed on the moving contact rotating shaft of the grounding switch.
3. The switch cabinet grounding switch contact in-place detection device as claimed in claim 1, wherein the opening travel switch is arranged on a rotating contact surface of the opening cam.
4. The device for detecting the in-place of the contact of the grounding switch of the switch cabinet as claimed in claim 1, wherein the closing travel switch is arranged on a rotating contact surface of a closing cam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347898.XA CN112946467A (en) | 2021-03-31 | 2021-03-31 | Switch cabinet grounding switch contact in-place detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110347898.XA CN112946467A (en) | 2021-03-31 | 2021-03-31 | Switch cabinet grounding switch contact in-place detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112946467A true CN112946467A (en) | 2021-06-11 |
Family
ID=76231380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110347898.XA Pending CN112946467A (en) | 2021-03-31 | 2021-03-31 | Switch cabinet grounding switch contact in-place detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112946467A (en) |
-
2021
- 2021-03-31 CN CN202110347898.XA patent/CN112946467A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101993600B1 (en) | 96T Protection Relay With Remote Reset | |
| CN204905172U (en) | Circuit breaker with aassessment contact wear | |
| CN204188323U (en) | For the pressure transducer of contacts for vacuum-break switches spring pressure monitoring | |
| CN111830403A (en) | Fault detection method, medium and system of isolating switch device | |
| CN102445654A (en) | On-line monitor for mechanical characteristic of on-load tap-changer of power transformer | |
| CN103470663B (en) | Wear sensor for friction plate of fan yaw brake | |
| CN215116642U (en) | Switch cabinet grounding switch contact in-place detection device | |
| CN112946467A (en) | Switch cabinet grounding switch contact in-place detection device | |
| CN205384997U (en) | Modular trip gear | |
| CN202120803U (en) | Moving contact vertical moving type high pressure isolation switch used for moving contact position detection | |
| CN219143041U (en) | Indoor single-pole double-throw tripolar isolating switch | |
| CN114464493B (en) | Fault diagnosis device for contact net isolating switch | |
| CN202423109U (en) | Connecting and driving device for vacuum circuit breaker | |
| EP3200297B1 (en) | Circuit breaker drawer base position-indicating apparatus | |
| CN110808189B (en) | Three-phase common-box isolating switch and high-voltage switch equipment | |
| CN209071931U (en) | 10kV/35kV middle-placed switch cabinet wheelbarrow switch travel switch moves device again | |
| CN114624578A (en) | Aggregation analysis and diagnosis device and method for action characteristics of high-voltage switch equipment | |
| CN109461634B (en) | Hydraulic electromagnetic circuit breaker actuator | |
| CN220367841U (en) | Switch-on/off position signal control device of isolating switch operation box | |
| CN110595350A (en) | Angular displacement detection system and detection method for high-voltage isolating switch | |
| CN218481613U (en) | Switch cabinet grounding switch contact in-place detection device | |
| CN111354579A (en) | Motor direct-drive type large-torque three-station electric mechanism for common box | |
| CN202373888U (en) | Handcart device of indoor railroad vacuum circuit breaker | |
| CN112820578B (en) | Fault identification method for multi-source action signal | |
| CN104715958A (en) | Earthing switch and disconnecting switch with earthing switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |