CN212380754U - Secondary control structure of anti-condensation switch cabinet - Google Patents
Secondary control structure of anti-condensation switch cabinet Download PDFInfo
- Publication number
- CN212380754U CN212380754U CN202020993146.1U CN202020993146U CN212380754U CN 212380754 U CN212380754 U CN 212380754U CN 202020993146 U CN202020993146 U CN 202020993146U CN 212380754 U CN212380754 U CN 212380754U
- Authority
- CN
- China
- Prior art keywords
- aviation connector
- control unit
- protection measurement
- aviation
- condensation
- 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.)
- Active
Links
Images
Landscapes
- Patch Boards (AREA)
Abstract
The utility model discloses a prevent condensation cubical switchboard secondary control structure, including single-phase voltage transformer, electronic voltage transformer, the current transformer subassembly, electric operating mechanism and protection measurement and control unit, single-phase voltage transformer's output is provided with first aviation connector, the first input of protection measurement and control unit is provided with the second aviation connector, the third input of protection measurement and control unit is provided with the sixth aviation connector, the fifth aviation connector passes through the cable conductor and is connected with sixth aviation connector, electric operating mechanism's output is provided with the seventh aviation connector, the fourth input of protection measurement and control unit is provided with the eighth aviation connector, the seventh aviation connector passes through the cable conductor and is connected with eighth aviation connector. The utility model discloses, avoid because the unable work that the condensation phenomenon leads to, the unstable problem of work appear.
Description
Technical Field
The utility model belongs to the technical field of the cubical switchboard, especially, relate to a prevent condensation cubical switchboard secondary control structure.
Background
At present, a switch cabinet is common electrical equipment of a transformer substation, but the condensation phenomenon is generated due to the reasons of poor installation environment, poor sealing, large air temperature change, large air humidity and the like of the switch cabinet, particularly, secondary condensation of the switch cabinet corrodes a metal conductive part on a terminal block, alternating current and direct current short circuit grounding is easily caused after serious corrosion or impurities such as dust are mixed in, and the direct current grounding can cause great harm to the stable operation of a secondary system of the transformer substation. Most of direct current grounding is that water is attached to an electrified part, more serious is that condensation causes short circuit of two secondary wires on a terminal block, and if the direct current grounding is just a circuit breaker tripping loop, misoperation of the circuit breaker can be caused immediately, and a power failure accident is caused.
Therefore, the prior art is to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a prevent condensation cubical switchboard secondary control structure, aims at solving the technical problem who mentions in the background art, avoids because unable work, the unstable problem of work that the condensation phenomenon leads to appear.
The utility model discloses a condensation prevention switch cabinet secondary control structure, which comprises a single-phase voltage transformer, an electronic voltage transformer, a current transformer component, an electric operating mechanism and a protection measurement and control unit, wherein the output end of the single-phase voltage transformer is provided with a first aviation connector, the first input end of the protection measurement and control unit is provided with a second aviation connector, the first aviation connector is connected with the second aviation connector through a cable, the output end of the electronic voltage transformer is provided with a third aviation connector, the second input end of the protection measurement and control unit is provided with a fourth aviation connector, the third aviation connector is connected with the fourth aviation connector through a cable, the output end of the current transformer component is provided with a fifth aviation connector, the third input end of the protection measurement and control unit is provided with a sixth aviation connector, the fifth aviation connector is connected with the sixth aviation connector through a cable, the output end of the electric operating mechanism is provided with a, the fourth input of protection measurement and control unit is provided with the eighth aviation connector, and the seventh aviation connector passes through the cable conductor and is connected with the eighth aviation connector.
Preferably, the current transformer assembly comprises a three-phase current transformer and a zero sequence current transformer.
Preferably, the current transformer assembly is disposed within an SF6 tank.
The utility model discloses a prevent condensation cubical switchboard secondary control structure, all secondary line output and protection observe and control the unit and all use the aviation articulate, do not establish the terminal row in the centre. The characteristic of aviation connector protection grade IP67 is utilized to normally and reliably operate under the condition of switch cabinet condensation, and the condensation hidden danger of switch cabinet secondary control is thoroughly solved.
Drawings
Fig. 1 is a schematic structural view of a secondary control structure of the anti-condensation switch cabinet of the utility model;
fig. 2 is the utility model discloses prevent the connection schematic diagram of secondary circuit among condensation cubical switchboard secondary control structure.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It is noted that relative terms such as "first," "second," and the like may be used to describe various components, but these terms are not intended to limit the components. These terms are only used to distinguish one component from another component. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present invention. The term "and/or" refers to a combination of any one or more of the associated items and the descriptive items.
As shown in fig. 1 and 2, fig. 1 is a schematic structural view of a secondary control structure of the anti-condensation switch cabinet of the present invention; fig. 2 is the utility model discloses prevent the connection schematic diagram of secondary circuit among condensation cubical switchboard secondary control structure. The utility model discloses a condensation prevention cubical switchboard secondary control structure, including single-phase voltage transformer 1, electronic voltage transformer 3, current transformer subassembly 2, electric operating device 4 and protection measurement and control unit 5, the output of single-phase voltage transformer 1 is provided with first aviation connector 31, the first input of protection measurement and control unit 5 is provided with second aviation connector 54, first aviation connector is connected with second aviation connector 54 through 31 electric cables, the output of electronic voltage transformer 3 is provided with third aviation connector 33, the second input of protection measurement and control unit 5 is provided with fourth aviation connector 52, third aviation connector 33 is connected with fourth aviation connector 52 through electric cables, the output of current transformer subassembly 2 is provided with fifth aviation connector 32, the third input of protection measurement and control unit 5 is provided with sixth aviation connector 53, fifth aviation connector 32 is connected with sixth aviation connector 53 through electric cables, the output end of the electric operating mechanism 4 is provided with a seventh aviation connector 34, the fourth input end of the protection measurement and control unit is provided with an eighth aviation connector 51, and the seventh aviation connector 34 is connected with the eighth aviation connector 51 through a cable. The utility model discloses a prevent condensation cubical switchboard secondary control structure, all secondary line output and protection observe and control the unit and all use the aviation articulate, do not establish the terminal row in the centre. The characteristic of aviation connector protection grade IP67 is utilized to normally and reliably operate under the condition of switch cabinet condensation, and the condensation hidden danger of switch cabinet secondary control is thoroughly solved.
The current transformer assembly comprises a three-phase current transformer and a zero-sequence current transformer; zero-sequence current and three-phase current can be collected; and the current transformer assembly is disposed within an SF6 box 20, the SF6 box representing a box filled with sulfur hexafluoride. The control principle is as follows: when faults such as short-circuit current, overhigh or overlow voltage, single-phase grounding and the like occur in the operation of a line, the current transformer assembly 2 is used for sending collected abnormal current signals to the protection measurement and control unit 5, and the electronic voltage transformer 3 is used for sending collected abnormal voltage signals to the protection measurement and control unit 5. The protection measurement and control unit 5 receives the abnormal current signal and the abnormal voltage signal and then outputs a control instruction to the switch operating mechanism 4, and the switch operating mechanism 4 sends a command of opening a brake or transmitting a data signal to the outside according to the control instruction, so that an automatic function is realized. It should be noted that the control principle described above relates to a control method, and belongs to the prior art. The protection measurement and control unit 5 is an existing controller or control module.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (3)
1. A secondary control structure of an anti-condensation switch cabinet is characterized by comprising a single-phase voltage transformer, an electronic voltage transformer, a current transformer assembly, an electric operating mechanism and a protection measurement and control unit, wherein the output end of the single-phase voltage transformer is provided with a first aviation connector, the first input end of the protection measurement and control unit is provided with a second aviation connector, the first aviation connector is connected with the second aviation connector through a cable, the output end of the electronic voltage transformer is provided with a third aviation connector, the second input end of the protection measurement and control unit is provided with a fourth aviation connector, the third aviation connector is connected with the fourth aviation connector through a cable, the output end of the current transformer assembly is provided with a fifth aviation connector, the third input end of the protection measurement and control unit is provided with a sixth aviation connector, and the fifth aviation connector is connected with the sixth aviation connector through a cable, the output end of the electric operating mechanism is provided with a seventh aviation connector, the fourth input end of the protection measurement and control unit is provided with an eighth aviation connector, and the seventh aviation connector is connected with the eighth aviation connector through a cable.
2. The secondary control structure of the condensation-preventing switch cabinet as recited in claim 1, wherein the current transformer assembly comprises a three-phase current transformer and a zero-sequence current transformer.
3. The secondary control structure of the anti-condensation switch cabinet as claimed in claim 1, wherein the current transformer assembly is disposed in an SF6 box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020993146.1U CN212380754U (en) | 2020-06-03 | 2020-06-03 | Secondary control structure of anti-condensation switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020993146.1U CN212380754U (en) | 2020-06-03 | 2020-06-03 | Secondary control structure of anti-condensation switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212380754U true CN212380754U (en) | 2021-01-19 |
Family
ID=74180264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020993146.1U Active CN212380754U (en) | 2020-06-03 | 2020-06-03 | Secondary control structure of anti-condensation switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212380754U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346384A (en) * | 2021-06-29 | 2021-09-03 | 广东电网有限责任公司 | Device box, secondary screen cabinet and wiring installation method |
-
2020
- 2020-06-03 CN CN202020993146.1U patent/CN212380754U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113346384A (en) * | 2021-06-29 | 2021-09-03 | 广东电网有限责任公司 | Device box, secondary screen cabinet and wiring installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101557083B (en) | Handcart-type switch arc suppression device | |
| GB2578339A (en) | Open PEN detection and shut down system | |
| CN104348107A (en) | All condition intelligent armored moving-type alternating current metal closed switch equipment | |
| CN201413939Y (en) | Electrical interlocking system of inlet wire and interconnection switch for switch apparatus | |
| EP4046249B1 (en) | High voltage overhead electric transmission line equipped with switchgear unit | |
| CN113168981A (en) | Switch and protection device of low-voltage board and low-voltage board comprising switch and protection device | |
| CN212380754U (en) | Secondary control structure of anti-condensation switch cabinet | |
| US5204800A (en) | Voltage surge suppression device | |
| CN108110726A (en) | Ship-to-shore equipotential protective device | |
| CN214755500U (en) | Protection system for neutral point ungrounded power system | |
| CN211606079U (en) | Medium-voltage switch cabinet for realizing low-voltage locking of motor | |
| CN212380734U (en) | Condensation-proof automatic switch structure | |
| CN206225847U (en) | The universal attachment means of power supply vehicle of meet an emergency and low pressure aerial condutor | |
| CN110261737A (en) | A kind of smart grounding route selection complexes | |
| US5175667A (en) | Gas insulated substations | |
| CN204967265U (en) | Electric system of transformer substation | |
| CN213460852U (en) | Armored high-voltage switch cabinet capable of being installed against wall | |
| CN219164299U (en) | Intelligent high-voltage distribution switch with electricity larceny prevention type high-voltage metering function | |
| CN220652608U (en) | Circuit breaker high-voltage board for energy storage box transformer substation | |
| CN212301813U (en) | Line selection device for ground fault of low-current grounding system | |
| KR200235038Y1 (en) | Earth device for power cable | |
| CN218447429U (en) | Novel combined transformer | |
| RU2189680C2 (en) | Factory-assembled switch gear | |
| CN211209287U (en) | Zero sequence protection device and high-voltage station service protection equipment | |
| CN216056322U (en) | Lightning protection circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |