CN204243886U - Inverter protecting against shock modified node method - Google Patents
Inverter protecting against shock modified node method Download PDFInfo
- Publication number
- CN204243886U CN204243886U CN201420562418.7U CN201420562418U CN204243886U CN 204243886 U CN204243886 U CN 204243886U CN 201420562418 U CN201420562418 U CN 201420562418U CN 204243886 U CN204243886 U CN 204243886U
- Authority
- CN
- China
- Prior art keywords
- inverter body
- inverter
- contactor
- input end
- power
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000035939 shock Effects 0.000 title claims abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Inverter Devices (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The utility model discloses a kind of inverter protecting against shock modified node method, it comprises inverter body, the ac output end that inverter body has the ac input end be connected with alternating current 220V civil power, the ac input end be connected with 220V DC power supply and is connected with load, inverter body is built-in with and exchanges for carrying out the by-pass switch inputting and automatically switch with direct current input; Be connected to A.C. contactor between the ac input end of inverter body and alternating current 220V civil power, a time-delay relay is in parallel with A.C. contactor.The utility model structure is simple, easy to operate, time-delay relay is utilized to control A.C. contactor, when recovering power transmission again after transformer station stands interchange dead electricity entirely, time delay certain hour, after waiting full station AC system stable, A.C. contactor is connected, to inverter body power transmission, effectively solve power transmission instantaneous power and impact the deadlock phenomenon causing inverter body.
Description
Technical field
The utility model relates to technical field of power systems, especially relates to a kind of inverter protecting against shock modified node method.
Background technology
At present, unattended operation transformer station adopts inverter to provide uninterrupted power supply to visual plants such as computers mostly.Due to the defect of some inverter manufacturers design; when recovering power transmission again after transformer station stands interchange dead electricity entirely; very large impulse current can be produced instantaneously; the fluctuation of voltage can cause the protection of inverter to start; the relay causing inverter ac output to connect disconnects and exports without exchanging and can not automatically recover, and causes load equipment to work.
Summary of the invention
For solving the problem, the purpose of this utility model is to provide the inverter protecting against shock modified node method that a kind of structure is simple, reasonable in design, result of use is good.
For achieving the above object, the utility model adopts following technical scheme:
A kind of inverter protecting against shock modified node method, it comprises inverter body, the ac output end that inverter body has the ac input end be connected with alternating current 220V civil power, the ac input end be connected with 220V DC power supply and is connected with load, inverter body is built-in with and exchanges for carrying out the by-pass switch inputting and automatically switch with direct current input; Be connected to A.C. contactor between the ac input end of inverter body and alternating current 220V civil power, a time-delay relay is in parallel with A.C. contactor.
Owing to adopting technical scheme as above, the utility model has following superiority:
This inverter protecting against shock modified node method, its structure is simple, and cost of manufacture is low, novelty reasonable in design, easy to operate, time-delay relay is utilized to control A.C. contactor, when recovering power transmission again after transformer station stands interchange dead electricity entirely, time delay certain hour, after station AC system is stablized entirely, A.C. contactor is connected, and to inverter body power transmission, effectively solves power transmission instantaneous power and impacts the deadlock phenomenon causing inverter body.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model;
In figure: 1-alternating current 220V civil power; 2-A.C. contactor; 3-inverter body; 4-load; 5-220V DC power supply; 6-time-delay relay.
Embodiment
Below in conjunction with drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 1, this inverter protecting against shock modified node method, it comprises inverter body 3, inverter body has the ac input end be connected with alternating current 220V civil power 1, the ac input end be connected with 220V DC power supply 5, the ac output end that is connected with load 4 through relay, and inverter body is built-in with the by-pass switch automatically switched with direct current input for carrying out exchanging input; A.C. contactor 2 is connected between the ac input end of inverter body and alternating current 220V civil power, A.C. contactor input is electrically connected with alternating current 220V city, A.C. contactor output is connected with the ac input end of inverter body, and a time-delay relay 6 is with the coils from parallel connection of coils of A.C. contactor and the coils connected in series of the normally opened contact of time-delay relay and A.C. contactor.
When recovering power transmission again after transformer station stands interchange dead electricity entirely, time delay certain hour, as 1 minute or 2 minutes, after station AC system is stablized entirely, delay time arrives, and the normally opened contact of time-delay relay closes, the coil electricity of A.C. contactor, electric main sends into inverter body, and load equipment can normally work.
Claims (1)
1. an inverter protecting against shock modified node method, it is characterized in that: it comprises inverter body, the ac output end that inverter body has the ac input end be connected with alternating current 220V civil power, the ac input end be connected with 220V DC power supply and is connected with load, inverter body is built-in with and exchanges for carrying out the by-pass switch inputting and automatically switch with direct current input; Be connected to A.C. contactor between the ac input end of inverter body and alternating current 220V civil power, a time-delay relay is in parallel with A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562418.7U CN204243886U (en) | 2014-09-28 | 2014-09-28 | Inverter protecting against shock modified node method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420562418.7U CN204243886U (en) | 2014-09-28 | 2014-09-28 | Inverter protecting against shock modified node method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204243886U true CN204243886U (en) | 2015-04-01 |
Family
ID=52773331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420562418.7U Expired - Fee Related CN204243886U (en) | 2014-09-28 | 2014-09-28 | Inverter protecting against shock modified node method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204243886U (en) |
-
2014
- 2014-09-28 CN CN201420562418.7U patent/CN204243886U/en not_active Expired - Fee Related
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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: 20150401 Termination date: 20150928 |
|
| EXPY | Termination of patent right or utility model |