CN202111467U - Multi-polar low voltage circuit breaker - Google Patents
Multi-polar low voltage circuit breaker Download PDFInfo
- Publication number
- CN202111467U CN202111467U CN2011202299132U CN201120229913U CN202111467U CN 202111467 U CN202111467 U CN 202111467U CN 2011202299132 U CN2011202299132 U CN 2011202299132U CN 201120229913 U CN201120229913 U CN 201120229913U CN 202111467 U CN202111467 U CN 202111467U
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- CN
- China
- Prior art keywords
- voltage
- circuit breaker
- module
- voltage circuit
- low voltage
- 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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Abstract
The utility model relates to a multi-polar low voltage circuit breaker comprising an input end, a surge voltage acquisition module, a voltage comparison module, a decoupling circuit-breaking module and an output end, all of which are electrically connected in this order. The multi-polar low voltage circuit breaker of the utility model is capable of accurately determining whether the sudden rise of the voltage is caused by lightning stroke and whether the power is cut off after being provided with the surge voltage acquisition module and the voltage comparison module; therefore, the circuit breaker has excellent lightning protection function.
Description
[technical field]
The utility model relates to a kind of multipolar low-voltage circuit breaker, belongs to the electric switch technical field.
[background technology]
In controller switching equipment, the multipolar low-voltage circuit breaker is widely used as main electric switch.When faults such as controller switching equipment transships, short circuit, electric leakage, the line disconnection automatically of this circuit breaker plays a protective role.
Yet; Also there are some defectives in the low-voltage circuit breaker of prior art: as when the thundery sky; These circuit breakers are easy to out tripping operation (being that circuit breaker breaks off), and production equipment often is in running status when it is cut off the electricity supply suddenly, so just cause security incident and economic loss easily.
For solving the problems of the technologies described above, necessary a kind of structure improved multipolar low-voltage circuit breaker that has is provided, to overcome said defective of the prior art.
[utility model content]
For addressing the above problem, the purpose of the utility model is to provide a kind of multipolar low-voltage circuit breaker with good lightning protection function.
For realizing above-mentioned purpose, the technical scheme that the utility model is taked is: a kind of multipolar low-voltage circuit breaker, it comprises input, the voltage acquisition module of surging, voltage comparison module, unhook turn-off module and the output that electrically connects successively.
The multipolar low-voltage circuit breaker of the utility model further is set to: be provided with an earth terminal in said unhook turn-off module.
Compared with prior art; The utlity model has following beneficial effect: the multipolar low-voltage circuit breaker of the utility model is through setting surge voltage acquisition module and voltage comparison module; Can accurately judge the unexpected rising of voltage whether be cause by thunderbolt and whether cut off the electricity supply, make it have good lightning protection function.
[description of drawings]
Fig. 1 is the schematic diagram of the multipolar low-voltage circuit breaker of the utility model.
[embodiment]
See also shown in the Figure of description 1, the utility model is a kind of multipolar low-voltage circuit breaker, and it comprises input 1, the voltage acquisition module 2 of surging, voltage comparison module 3, unhook turn-off module 4 and the output 5 that electrically connects successively.
Wherein, the input that said input 1 gets access to grid, and output 5 connects user side.The said voltage acquisition module 2 of surging is used for the instantaneous acquiring information of voltage, and this information of voltage is passed on the voltage comparison module 3.Said voltage comparison module 3 compares according to the information of voltage of the magnitude of voltage of setting with the voltage acquisition module 2 of surging, and whether decision starts unhook turn-off module 4 and circuit breaker is broken off.Be provided with an earth terminal 6 in said unhook turn-off module 4.
The operation principle of the multipolar low-voltage circuit breaker of the utility model is following: its voltage raises at short notice when thunderbolt appears in electrical network; The said voltage acquisition module 2 of surging detects this magnitude of voltage and flows to voltage comparison module 3; Judge through voltage comparison module 3 and to confirm as that thunderbolt causes; Then voltage comparison module 3 does not start unhook turn-off module 4, thereby guarantees normal power supply, avoids having a power failure suddenly causing damage and the generation of personal injury accident to production.And do not cause owing to thunderbolt when voltage raises, the turn-off module 4 that then breaks off relations starts, and circuit breaker is broken off.
Above embodiment is merely the preferred embodiment of this creation, not in order to limiting this creation, any modification of being made within all spirit and principles in this creation, is equal to replacement, improvement etc., all should be included within the protection range of this creation.
Claims (2)
1. a multipolar low-voltage circuit breaker is characterized in that: comprise the input, the voltage acquisition module of surging, voltage comparison module, unhook turn-off module and the output that electrically connect successively.
2. multipolar low-voltage circuit breaker as claimed in claim 1 is characterized in that: on said unhook turn-off module, further be provided with an earth terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202299132U CN202111467U (en) | 2011-06-23 | 2011-06-23 | Multi-polar low voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202299132U CN202111467U (en) | 2011-06-23 | 2011-06-23 | Multi-polar low voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111467U true CN202111467U (en) | 2012-01-11 |
Family
ID=45436916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202299132U Expired - Fee Related CN202111467U (en) | 2011-06-23 | 2011-06-23 | Multi-polar low voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797053A (en) * | 2016-08-31 | 2018-03-13 | 施耐德电器工业公司 | The monitoring unit of observation circuit breaker and the breaker including the monitoring unit |
-
2011
- 2011-06-23 CN CN2011202299132U patent/CN202111467U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107797053A (en) * | 2016-08-31 | 2018-03-13 | 施耐德电器工业公司 | The monitoring unit of observation circuit breaker and the breaker including the monitoring unit |
| CN107797053B (en) * | 2016-08-31 | 2022-03-04 | 施耐德电器工业公司 | Monitoring unit for monitoring circuit breaker and circuit breaker comprising same |
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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: 20120111 Termination date: 20140623 |
|
| EXPY | Termination of patent right or utility model |