CN201975791U - Low-voltage combination switch controlled by RS485 bus - Google Patents
Low-voltage combination switch controlled by RS485 bus Download PDFInfo
- Publication number
- CN201975791U CN201975791U CN2010206532095U CN201020653209U CN201975791U CN 201975791 U CN201975791 U CN 201975791U CN 2010206532095 U CN2010206532095 U CN 2010206532095U CN 201020653209 U CN201020653209 U CN 201020653209U CN 201975791 U CN201975791 U CN 201975791U
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- CN
- China
- Prior art keywords
- combination switch
- bus
- low
- low pressure
- voltage combination
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model discloses a low-voltage combination switch controlled by an RS485 bus, which is characterized in that the low-voltage combination switch is connected with a controlled object in a connection type of the RS485 bus. A communication protocol between the low-voltage combination switch and the controlled object adopts a MODBUS protocol. The controlled object is a PC (Personal Computer), a PLC (Programmable Logic Controller), an intelligent reactive power compensator or a human-computer interface, etc. Due to adoption of a connecting module controlled by the RS485 bus, the number of wiring lines is reduced, and thus the wiring in a screen cabinet is convenient; the anti-jamming capability of the switch is enhanced, so that the operating reliability of the combination switch is improved; and the applied range of the combination switch is enlarged, so that the controlled object is diversified.
Description
Technical field
The utility model relates to a kind of combination switch, refers in particular to the low pressure combination switch that in the power system reactive power compensation arrangement compensation condenser is connected to the grid and carries out power factor compensation.
Background technology
A.C. contactor before the combination switch of a large amount of use energy-conserving and environment-protective substitutes in the power system reactive power compensation arrangement at present is the switching mechanism of electric capacity by way of compensation.And the operation of existing combination switch switching all adopts DC level to control, and this control mode exists deficiencies such as the more difficult installation of control line, poor anti jamming capability, controlling object be single.
Summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of cabling convenient, and antijamming capability is strong, also can realize the low pressure combination switch of the total line traffic control of controlling object diversified employing RS485.
For solving the problems of the technologies described above, the technical scheme that the utility model adopted is:
Adopt the low pressure combination switch of the total line traffic control of RS485, it is characterized in that: described low pressure combination switch is connected with controlling object by the mode of connection of RS485 bus.
Communications protocol between described low pressure combination switch and control the other side adopts the MODBUS agreement.
Described controlling object is PC or PLC controller or intelligent reactive power compensation device or man-machine interface etc., has embodied the diversified characteristics of controlling object.
The beneficial effects of the utility model are: owing to adopt the link block of the total line traffic control of RS485, reduced the circuit number of wiring, thereby made things convenient for the wiring in the screen cabinet; Strengthen the antijamming capability of switch, thereby improved the reliable in action of combination switch; Enlarged the range of application of combination switch, made controlling object variation more.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, low pressure combination switch; 2, RS485 bus; 3, controlling object; 4, build-out resistor.
Embodiment
As shown in Figure 1, adopt the low pressure combination switch of the total line traffic control of RS485, a plurality of low pressure combination switches 1 are parallel on the RS485 bus 2, be connected with controlling object 3, get final product in one 120 Ω build-out resistor of end connection of RS485 bus by RS485 bus 2.Communications protocol between described low pressure combination switch and control the other side adopts the MODBUS agreement.Described controlling object is PC or PLC controller or intelligent reactive power compensation device or man-machine interface etc.
Claims (3)
1. low pressure combination switch that adopts the total line traffic control of RS485 is characterized in that: described low pressure combination switch is connected with controlling object by the mode of connection of RS485 bus.
2. the low pressure combination switch of the total line traffic control of employing RS485 according to claim 1 is characterized in that: the communications protocol between described low pressure combination switch and control the other side adopts the MODBUS agreement.
3. the low pressure combination switch of the total line traffic control of employing RS485 according to claim 1, it is characterized in that: described controlling object is PC or PLC controller or intelligent reactive power compensation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206532095U CN201975791U (en) | 2010-12-10 | 2010-12-10 | Low-voltage combination switch controlled by RS485 bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206532095U CN201975791U (en) | 2010-12-10 | 2010-12-10 | Low-voltage combination switch controlled by RS485 bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975791U true CN201975791U (en) | 2011-09-14 |
Family
ID=44580889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206532095U Expired - Fee Related CN201975791U (en) | 2010-12-10 | 2010-12-10 | Low-voltage combination switch controlled by RS485 bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975791U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638050A (en) * | 2012-04-26 | 2012-08-15 | 杭州浙泰电气有限公司 | Reactive power compensation device and compensation method |
| CN104486184A (en) * | 2014-12-11 | 2015-04-01 | 重庆多邦科技发展有限公司 | RS485 communication equipment, RS485 communication method and RS485 communication system |
-
2010
- 2010-12-10 CN CN2010206532095U patent/CN201975791U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102638050A (en) * | 2012-04-26 | 2012-08-15 | 杭州浙泰电气有限公司 | Reactive power compensation device and compensation method |
| CN104486184A (en) * | 2014-12-11 | 2015-04-01 | 重庆多邦科技发展有限公司 | RS485 communication equipment, RS485 communication method and RS485 communication system |
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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: 20110914 Termination date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |