CN201594693U - Locking device of switch cabinet - Google Patents
Locking device of switch cabinet Download PDFInfo
- Publication number
- CN201594693U CN201594693U CN2009202954432U CN200920295443U CN201594693U CN 201594693 U CN201594693 U CN 201594693U CN 2009202954432 U CN2009202954432 U CN 2009202954432U CN 200920295443 U CN200920295443 U CN 200920295443U CN 201594693 U CN201594693 U CN 201594693U
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- CN
- China
- Prior art keywords
- switch
- electromagnet
- button
- locking device
- valve
- 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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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model discloses a locking device of a switch cabinet. The locking device comprises display contact point and a magnet coil, and is characterized in that a button switch is further included; and the display contact point, a button and the magnet coil are connected in sequence. The button switch is additionally arranged between the display contact point and the magnet coil, so that when the small button is pressed down, an electromagnet is excited to unfasten the valve of a grounding switch, and after the valve is opened and inserted into the operating handle of the grounding switch, the small button can be released, and at the moment, the ground switch can be operated, and the power supply of the electromagnet can be cut off, so as to prevent damage of the electromagnet caused by long-time power on.
Description
Technical field
The utility model relates to a kind of switch cubicle, relates in particular to a kind of switch cubicle locking device.
Background technology
In the KYN28A-12 high-tension switch cabinet, prevent that the measure of charged splice grafting ground switch from realizing locking by earthed switch handle hole valve.The valve of earthed switch handle hole is realized opening or closing by machinery and electrical interlock.When the switch handcart is in operation (or stand-by heat) position, this moment the switch handcart by the direct locking of mechanical linkage earthed switch handle hole valve, make that can not insert operating grip comes the operational grounding switch; When the switch handcart is in cold standby (or maintenance) position, the switch handcart is ineffective to the mechanical latching of valve, simultaneously under the uncharged situation of circuit, the electrification display junction closure, connect the electromagnet loop, earthed switch handle hole valve can be opened after the electromagnet excitation, thereby can operate earthed switch
The KYN28A-12 high-tension switch cabinet is in the operating process of the road maintenance (or switch and line maintenance) of being relocated by the switch operation, such a case usually takes place: the switch handcart has been pulled to cold standby (or maintenance) position, pass through electrical verification simultaneously, under the true no-voltage situation in line side, earthed switch handle hole valve still can not be opened, thereby can not carry out the operation of splice grafting ground switch.This moment, operating personnel had only the emergency release of use TO lower cabinet door, adopted the mode of artificial hanging earthing conductor to finish the line maintenance state.This way makes complicated operating processization has increased the operating time.
This situation that takes place in the research operation, can find that the reason that causes earthed switch handle hole valve not open mainly contains three aspects: basically all because the valve latching electromagnet damages to be caused, the main cause that causes electromagnet to damage is that the heating of electromagnet Inside coil burns out.When switch cubicle is in line maintenance (or switch and line maintenance), the conducting of electrification display normal opened contact, thus connect valve latching electromagnet power supply, make the electromagnet excitation.Generally speaking, service work need keep equipment line maintenance (or switch and line maintenance) several hrs, when concentrating maintenance even take several days time, so valve latching electromagnet several hrs or be in excited state in several days, the electromagnet Inside coil is switched on and heating burnout for a long time.
The utility model content
The utility model is at deficiency of the prior art, provide a kind of simple in structure, the switch cubicle control power supply of low cost of manufacture, use this switch cubicle control power supply, can effectively avoid being connected element extended overvoltage states such as relay coil, contact and the energy storage capacitor operation down on the control power supply.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals:
A kind of switch cubicle locking device comprises display contact, electromagnet coil, it is characterized in that, also comprises push-button switch, and described display contact, button, electromagnet coil are continuous in proper order.
Beneficial effect: the utility model compared with prior art has following beneficial effect:
The utility model is owing to increased a push-button switch between display contact and electromagnet coil, pressing little button makes the electromagnet excitation remove locking to the ground connection openning and dosing bib, after valve is opened and is inserted the earthed switch operating grip, just can decontrol little button, this moment both can the operational grounding switch, again can the tripping magnet power supply, thus prevent the long-time energising of electromagnet and damage.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
See Fig. 1, a kind of switch cubicle locking device comprises display contact 1, electromagnet coil 3, is provided with push-button switch 2 between display contact 1, the electromagnet coil 3, also is that display contact 1, push-button switch 2, electromagnet coil 3 orders link to each other.
Solve the root problem that electromagnet damages, will reduce electromagnet conduction time exactly as far as possible, do not increase operations staff's operation easier simultaneously again.We can add a push-button switch 2 in existing electromagnet excitation magnetic loop.
This push-button switch 2 can be installed in earthed switch handle hole next door, pressing the button switch 2 makes the electromagnet excitation remove locking to the ground connection openning and dosing bib, after valve is opened and is inserted the earthed switch operating grip, just can decontrol push-button switch 2, this moment both can the operational grounding switch, again can the tripping magnet power supply, thus reach the effect of killing two birds with one stone.In addition, when pressing the button switch 2, the electromagnet excitation is sent the sound, and is can alert electromagnet situation normal, thereby prevents in operating process owing to the valve bite is judged the problem of damaging into electromagnet by accident.
Claims (1)
1. a switch cubicle locking device comprises display contact (1), electromagnet coil (3), it is characterized in that, also comprises push-button switch (2), and described display contact (1), button, electromagnet coil (3) order link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202954432U CN201594693U (en) | 2009-12-26 | 2009-12-26 | Locking device of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202954432U CN201594693U (en) | 2009-12-26 | 2009-12-26 | Locking device of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594693U true CN201594693U (en) | 2010-09-29 |
Family
ID=42776760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202954432U Expired - Fee Related CN201594693U (en) | 2009-12-26 | 2009-12-26 | Locking device of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031730A (en) * | 2019-03-27 | 2019-07-19 | 内蒙古京能盛乐热电有限公司 | Have the survey insulation device and method of five anti-function 6/10kV switchgears |
-
2009
- 2009-12-26 CN CN2009202954432U patent/CN201594693U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031730A (en) * | 2019-03-27 | 2019-07-19 | 内蒙古京能盛乐热电有限公司 | Have the survey insulation device and method of five anti-function 6/10kV switchgears |
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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: 20100929 Termination date: 20111226 |