CN201298497Y - Under-voltage release for vacuum circuit breaker - Google Patents
Under-voltage release for vacuum circuit breaker Download PDFInfo
- Publication number
- CN201298497Y CN201298497Y CNU200820217037XU CN200820217037U CN201298497Y CN 201298497 Y CN201298497 Y CN 201298497Y CN U200820217037X U CNU200820217037X U CN U200820217037XU CN 200820217037 U CN200820217037 U CN 200820217037U CN 201298497 Y CN201298497 Y CN 201298497Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- under
- coil
- circuit breaker
- vacuum circuit
- 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
Abstract
The utility model relates to an under-voltage release for vacuum circuit breaker, which comprises a under-voltage releasing wiring board, a locking coil and a releasing coil connected with each other; an energy storage capacitor is electrically connected on the under-voltage releasing wiring board; and a microswitch is electrically connected on the locking coil. The locking coil in the utility model can attract reliably when the voltage is 85% of the rated voltage, does not release at 65%, and can release at 35%; the energy in the energy storage capacitor is enough for guarantee the switching off reliably in one time; and the releasing coil under that voltage can drive the circuit breaker to switch off reliably.
Description
Technical field
The utility model relates to a kind of device for under-voltage releasing equipment that is used for vacuum circuit-breaker.
Background technology
The device for under-voltage releasing equipment that was used for vacuum circuit-breaker in the past is a long-term charged potential winding, the potential winding adhesive guarantees that circuit breaker is in "on" position during operate as normal, when voltage be lower than rated voltage 35% the time, coil motion drives breaker open operation by the spring on the coil.Then requiring circuit breaker among the GB1984 " ac hv breaker " is 85% and reliable adhesive when above of rated voltage at voltage, non-shut-brake at 65% o'clock, 35% and reliable separating brake when following, so above-mentioned this device for under-voltage releasing equipment can't satisfy the under-voltage of user and decompression function by standard.
The utility model content
The utility model provides a kind of device for under-voltage releasing equipment that is used for vacuum circuit-breaker.
In order to overcome the defective that exists in the background technology, the technical scheme that its technical problem that solves the utility model adopts is: a kind of device for under-voltage releasing equipment that is used for vacuum circuit-breaker, have the undervoltage tripping wiring board, blocking coil and the tripping coil that are electrically connected mutually, be powered with storage capacitor on the described undervoltage tripping wiring board, be powered with sensitive switch on the blocking coil.
The utility model has solved the defective that exists in the background technology, blocking coil is reliable adhesive in 85% o'clock of rated voltage at voltage, do not discharge in 65% o'clock, reliably discharged in 35% o'clock, energy in the storage capacitor is enough to guarantee once reliable separating brake, and tripping coil is the reliable breaker open operation that drives under this voltage.
Description of drawings
Further specify below in conjunction with accompanying drawing the utility model.
Fig. 1 is a structural representation of the present utility model;
Wherein: 1, undervoltage tripping wiring board, 2, blocking coil, 3, tripping coil, 4, storage capacitor, 5, sensitive switch.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
As shown in Figure 1, a kind of device for under-voltage releasing equipment that is used for vacuum circuit-breaker, have the undervoltage tripping wiring board 1, blocking coil 2 and the tripping coil 3 that are electrically connected mutually, be powered with storage capacitor 4 on the described undervoltage tripping wiring board 1, be powered with sensitive switch 5 on the blocking coil 2.
When voltage be rated voltage 85% and when above, the blocking coil adhesive, guaranteed that mechanism has carried out the preparation of closing a floodgate, the sensitive switch that drives simultaneously on the blocking coil switches, from the electric connection that guarantees closing circuit, satisfied when voltage is 85% and the requirement that can close a floodgate when above of rated voltage, this moment, storage capacitor also began to store electric weight, and this blocking coil is that 65% o'clock of rated voltage still is in attracting state at voltage, guaranteed when voltage be rated voltage 65% the time circuit breaker non-shut-brake, when voltage be rated voltage 35% and when following, blocking coil discharges, the sensitive switch that drives on the blocking coil switches, and has connected sub-gate circuit, allows be stored in electric weight instantaneous relase in the storage capacitor, the action of drive tripping coil, make breaker open operation, satisfied when voltage be rated voltage 35% and when following, the requirement of the reliable separating brake of circuit breaker.
Claims (1)
1, a kind of device for under-voltage releasing equipment that is used for vacuum circuit-breaker, have the undervoltage tripping wiring board (1), blocking coil (2) and the tripping coil (3) that are electrically connected mutually, it is characterized in that: be powered with storage capacitor (4) on the described undervoltage tripping wiring board (1), be powered with sensitive switch (5) on the blocking coil (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820217037XU CN201298497Y (en) | 2008-11-26 | 2008-11-26 | Under-voltage release for vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820217037XU CN201298497Y (en) | 2008-11-26 | 2008-11-26 | Under-voltage release for vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201298497Y true CN201298497Y (en) | 2009-08-26 |
Family
ID=41044483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820217037XU Expired - Fee Related CN201298497Y (en) | 2008-11-26 | 2008-11-26 | Under-voltage release for vacuum circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201298497Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304404A (en) * | 2015-12-03 | 2016-02-03 | 陕西龙翔电器有限公司 | Outdoor 35kV high voltage vacuum circuit breaker mechanism with adapted modules |
-
2008
- 2008-11-26 CN CNU200820217037XU patent/CN201298497Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304404A (en) * | 2015-12-03 | 2016-02-03 | 陕西龙翔电器有限公司 | Outdoor 35kV high voltage vacuum circuit breaker mechanism with adapted modules |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20121126 |