CN204140358U - With the frequency-conversion control cabinet that star triangle power frequency startup switches - Google Patents
With the frequency-conversion control cabinet that star triangle power frequency startup switches Download PDFInfo
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- CN204140358U CN204140358U CN201420576655.9U CN201420576655U CN204140358U CN 204140358 U CN204140358 U CN 204140358U CN 201420576655 U CN201420576655 U CN 201420576655U CN 204140358 U CN204140358 U CN 204140358U
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Abstract
The utility model discloses a kind of frequency-conversion control cabinet switched with star triangle power frequency startup, form primarily of frequency variator, air compressor, two-way disconnecting link, cam switch and frequency conversion tank, described two-way disconnecting link is connected with air compressor major loop, and cam switch is connected with frequency conversion tank and sensor.The utility model can realize power frequency operation and converting operation interlocks, and security of system is reliable.Have the following advantages: transformation process is simple, and reforming cost is low, after transformation, control system is constant, and operator do not need to change origin operation custom.Power frequency drives and switches simple and convenient with frequency conversion drive and interlock, and security of system is reliable.When frequency variator is out of order, system still can normally work.
Description
Technical field
The utility model relates to a kind of frequency-conversion control cabinet switched with star triangle power frequency startup, belongs to technical field of electric control.
Background technique
In air compressor place, the remodeling method that traditional industrial frequency AC Direct driver changes frequency conversion drive into only has two kinds, and one directly power frequency is removed, and when frequency variator is out of order, system can only be shut down; The another kind components and parts that have been more additional could realize power frequency and retain, and transformation process is complicated, cost intensive.
Summary of the invention
For the shortcoming of prior art, the purpose of this utility model is to provide a kind of frequency-conversion control cabinet switched with star triangle power frequency startup, and can make air compressor reliable operation, reforming cost is low, and transformation process is simple and easy to realize.
The utility model is for solving the problems of the technologies described above adopted technological scheme as described below:
With the frequency-conversion control cabinet that star triangle power frequency startup switches, primarily of frequency variator, air compressor, two-way disconnecting link, cam switch and frequency conversion tank composition, described two-way disconnecting link is connected with air compressor major loop, and cam switch is connected with frequency conversion tank and sensor.
The beneficial effects of the utility model are: the utility model only need combine by 1 two-way disconnecting link and 1 cam switch the drive pattern just can selecting air compressor; controller does not need to make any change and all protections original under which kind of drive pattern are all effective, and the utility model achieves the interlocking of power frequency operation and converting operation.Therefore, transformation process is simple, and reforming cost is low, after transformation, control system is constant, and operator do not need to change origin operation custom, and power frequency drives and switches simple and convenient with frequency conversion drive and interlock, security of system is reliable, and when frequency variator is out of order, system such as still can normally to work at the advantage.
Accompanying drawing explanation
Fig. 1 is circuit connection diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described.
With the frequency-conversion control cabinet that star triangle power frequency startup switches, primarily of frequency variator, air compressor, two-way disconnecting link, cam switch and frequency conversion tank composition, described two-way disconnecting link is connected with air compressor major loop, and cam switch is connected with frequency conversion tank and sensor.
In one embodiment, a kind of frequency-conversion control cabinet switched with star triangle power frequency startup, as shown in Figure 1, is formed primarily of frequency variator, 1 two-way disconnecting link, 1 cam switch, frequency conversion tank and other annexes.The utility model only need combine by 1 two-way disconnecting link and 1 cam switch the drive pattern just can selecting air compressor, and transformation process is simple, and cost is low.
In addition, controller do not need to make any change and under which kind of drive pattern former all protections all effective.
The utility model can also realize power frequency operation and converting operation interlocks, and security of system is reliable.
Because the utility model have employed above technological scheme, therefore have the following advantages:
(1) transformation process is simple, and reforming cost is low, and after transformation, control system is constant, and operator do not need to change origin operation custom.
(2) power frequency drives and switches simple and convenient with frequency conversion drive and interlock, and security of system is reliable.
(3) when frequency variator is out of order, system still can normally work.
It should be noted that; above-mentioned specific embodiment is only exemplary; under above-mentioned instruction of the present utility model, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion all drops in protection domain of the present utility model.It will be understood by those skilled in the art that specific descriptions are above to explain the purpose of this utility model, not for limiting the utility model.Protection domain of the present utility model is by claim and equivalents thereof.
Claims (1)
1. the frequency-conversion control cabinet switched with star triangle power frequency startup, it is characterized in that, primarily of frequency variator, air compressor, two-way disconnecting link, cam switch and frequency conversion tank composition, described two-way disconnecting link is connected with air compressor major loop, and cam switch is connected with frequency conversion tank and sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576655.9U CN204140358U (en) | 2014-10-08 | 2014-10-08 | With the frequency-conversion control cabinet that star triangle power frequency startup switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420576655.9U CN204140358U (en) | 2014-10-08 | 2014-10-08 | With the frequency-conversion control cabinet that star triangle power frequency startup switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204140358U true CN204140358U (en) | 2015-02-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420576655.9U Expired - Fee Related CN204140358U (en) | 2014-10-08 | 2014-10-08 | With the frequency-conversion control cabinet that star triangle power frequency startup switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204140358U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469604A (en) * | 2018-10-08 | 2019-03-15 | 珠海格力电器股份有限公司 | Heat exchange equipment with multistage energy efficiency point compressor and control method thereof |
| CN109707609A (en) * | 2018-12-10 | 2019-05-03 | 安徽金禾实业股份有限公司 | Air compressor energy saving control system in hydrogen peroxide production process |
-
2014
- 2014-10-08 CN CN201420576655.9U patent/CN204140358U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109469604A (en) * | 2018-10-08 | 2019-03-15 | 珠海格力电器股份有限公司 | Heat exchange equipment with multistage energy efficiency point compressor and control method thereof |
| CN109469604B (en) * | 2018-10-08 | 2020-02-14 | 珠海格力电器股份有限公司 | Heat exchange equipment with multistage energy efficiency point compressor and control method thereof |
| CN109707609A (en) * | 2018-12-10 | 2019-05-03 | 安徽金禾实业股份有限公司 | Air compressor energy saving control system in hydrogen peroxide production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150204 Termination date: 20151008 |
|
| EXPY | Termination of patent right or utility model |