CN108598979A - A kind of the protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution - Google Patents
A kind of the protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution Download PDFInfo
- Publication number
- CN108598979A CN108598979A CN201810596312.1A CN201810596312A CN108598979A CN 108598979 A CN108598979 A CN 108598979A CN 201810596312 A CN201810596312 A CN 201810596312A CN 108598979 A CN108598979 A CN 108598979A
- Authority
- CN
- China
- Prior art keywords
- breaker
- circuit
- switch
- drawer
- closing
- 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.)
- Pending
Links
- 238000002474 experimental method Methods 0.000 claims abstract description 22
- 238000005086 pumping Methods 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/12—Switchgear having carriage withdrawable for isolation with isolation by horizontal withdrawal
- H02B11/127—Withdrawal mechanism
- H02B11/133—Withdrawal mechanism with interlock
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B11/00—Switchgear having carriage withdrawable for isolation
- H02B11/26—Arrangements of fuses, resistors, voltage arresters or the like
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
Abstract
The present invention provides the protection exclusive circuits and low-voltage distribution cabinet of a kind of electrically operated institution, secondary current supply circuit, the closing circuit of breaker including breaker and the sub-gate circuit of breaker, string is equipped with the closing switch that drawer is in the corresponding switch of working position and breaker in the closing circuit of breaker, separating brake of the string equipped with breaker switchs in the sub-gate circuit of breaker, and separating brake switch ends are parallel with drawer and are in the corresponding switch in experiment position.By increasing drawer working position and experiment bit switch, form it into electric blocking, avoid electrically operated institution on-load operation, it ensure that personal safety and reliability service, the circuit structure of the present invention is simple, practical reasonable, applied widely, meets safe operation, reliable, cost-effective requirement, it ensure that the operating status of low-voltage distribution cabinet, further ensured the safe and stable of Operation of Electric Systems, economy and power supply reliability.
Description
Technical field
The invention belongs to the technical field of low-voltage distribution apparatus, more particularly to the protection exclusive circuit of a kind of electrically operated institution and
Low-voltage distribution cabinet.
Background technology
The application of MNSS and GCS cabinet types is universal in standard low pressure distribution system and power plant's electric system.Wherein high current is used
Plastic housing hot line job scheme is already a kind of trend, and previous open frame circuit breaker generally realizes machinery using manual operation handle
Locking, when circuit associated connections are overhauled or checked to drawer, need to ensure that breaker is in gate-dividing state, due to grasping manually
Make handle with position interlock mechanisms such as experiment, connection, separation extractions, therefore manual operation handle is made to convert to discrete state just
Can realize makes breaker be in gate-dividing state, can extract out overhaul by drawer when breaker is in gate-dividing state and check.
The structure of electrification behaviour's breaker of plastic casing is different from the structure of not charged behaviour's breaker of plastic casing, and electrification behaviour's breaker is general
For in high current system, facilitating electric operation, time but also human-saving have not only been saved.But electrification behaviour's breaker of plastic casing is without manual
Operating handle, due to structure problem, therefore band drawer ribbon gymnastics circuit is easy hot line job, can only pass through electricity without mechanical latching
Air circuit operates switch closing and switch opening, and experiment position is drawn to when can not thus avoid electricity behaviour in working position "on" position,
Circuit is grasped when extracting drawer electricity out in the case of combined floodgate, hot line job at this time does not meet checking experiment article, and there are operations not
Safety and power circuit fluctuation of service easily cause low-voltage distribution system failure or the security risk of personal injury occur, in order to
Drawbacks described above is solved, Authorization Notice No. is " CN200987045Y ", and entitled " operation of low pressure draw-out type low-voltage distribution cabinet band point is taken out
The Chinese patent of the mechanical electric interlocking mechanism of drawer " provides a kind of interlocking mechanism, and the interlocking mechanism is by being arranged handle and dividing
Switch knob carrys out the opening and closing state of co- controlling main circuit breaker, and when main circuit breaker is in gate-dividing state, drawer could be taken out
Go out, has prevented the unsafe acts of hot line job, but the circuit structure of the patent is complicated, it is not easy to realize, it is also necessary to be arranged
Handle, causes of high cost, and circuit is impracticable, and the scope of application is narrow.
Invention content
The purpose of the present invention is to provide the protection exclusive circuits and low-voltage distribution cabinet of a kind of electrically operated institution, are taken out for solving
The problem for the circuit structure complexity that drawer uses when can be just extracted when breaker is in gate-dividing state.
To achieve the above object, the present invention provides a kind of protection exclusive circuit of electrically operated institution, include the two of breaker
The sub-gate circuit of secondary current supply circuit, the closing circuit of breaker and breaker, string, which is equipped with, in the closing circuit of the breaker takes out
Drawer is in the closing switch of the corresponding switch of working position and breaker, and string is equipped with breaker in the sub-gate circuit of the breaker
Separating brake switchs, and the separating brake switch ends are parallel with drawer and are in the corresponding switch in experiment position.
Further, it is row that the drawer, which is in the corresponding switch of working position and drawer in the corresponding switch in experiment position,
Cheng Kaiguan.
It is further limited as what is switched to breaker closing, the closing switch is closing by hand button.
It is further limited as what is switched to breaker open operation, the separating brake switch is manual brake separating button.
In order to protect the safety of current supply circuit, fuse is provided in the secondary current supply circuit of the breaker.
The present invention also provides a kind of low-voltage distribution cabinets, include the primary circuit of breaker body and breaker, further include
The protection exclusive circuit of electrically operated institution, the exclusive circuit include the closing circuit of the secondary current supply circuit of breaker, breaker
And the sub-gate circuit of breaker, string is in the corresponding switch of working position and open circuit equipped with drawer in the closing circuit of the breaker
The closing switch of device, separating brake of the string equipped with breaker switchs in the sub-gate circuit of the breaker, and the separating brake switch ends are simultaneously
It is associated with drawer and is in the corresponding switch in experiment position.
Further, it is row that the drawer, which is in the corresponding switch of working position and drawer in the corresponding switch in experiment position,
Cheng Kaiguan.
It is further limited as what is switched to breaker closing, the closing switch is closing by hand button.
It is further limited as what is switched to breaker open operation, the separating brake switch is manual brake separating button.
In order to protect the safety of current supply circuit, fuse is provided in the secondary current supply circuit of the breaker.
The beneficial effects of the invention are as follows：
The protection exclusive circuit of the electrically operated institution of the present invention, includes the combined floodgate of the secondary current supply circuit of breaker, breaker
The sub-gate circuit of circuit and breaker, in the closing circuit of the breaker string be equipped with drawer be in working position it is corresponding switch and
The closing switch of breaker, separating brake of the string equipped with breaker switchs in the sub-gate circuit of the breaker, the separating brake switch two
End is parallel with drawer and is in the corresponding switch in experiment position.By increasing drawer working position and experiment bit switch, form it into electrical
Locking, avoids electrically operated institution on-load operation, ensure that personal safety and reliability service, circuit structure of the invention are simple, real
It is applied widely with reasonable, meet safe operation, reliable, cost-effective requirement.
It is provided with the protection exclusive circuit of electrically operated institution in the low-voltage distribution cabinet of the present invention, ensure that low-voltage distribution cabinet just
Normal operating status is further ensured the safe and stable of Operation of Electric Systems, economy and power supply reliability.
Description of the drawings
Fig. 1 is the protection exclusive circuit structural schematic diagram of electrically operated institution；
Fig. 2 is the primary circuit schematic diagram of breaker.
Specific implementation mode
The specific implementation mode of the present invention is further described below in conjunction with the accompanying drawings：
The present invention provides a kind of low-voltage distribution cabinets, include the primary circuit of breaker body and breaker, further include electricity
The protection exclusive circuit of mechanism is grasped, exclusive circuit includes the secondary current supply circuit of breaker, the closing circuit of breaker and open circuit
The sub-gate circuit of device, string is equipped with drawer and be in that working position is corresponding to be switched and the combined floodgate of breaker is opened in the closing circuit of breaker
It closes, separating brake of the string equipped with breaker switchs in the sub-gate circuit of breaker, and separating brake switch ends are parallel with drawer and are in experiment position
Corresponding switch.When drawer is in "on" position from breaker to be extracted out, drawer is in the corresponding switch contact in experiment position and is closed,
Brake division loop of circuit breaker is connected, and to make breaker be in gate-dividing state, ensure that drawer can be extracted out normally.
It is stroke that the drawer of the present embodiment, which is in the corresponding switch of working position and drawer in the corresponding switch in experiment position,
Switch, as other embodiment, it is also an option that the switch with same or similar function.
Further, closing switch is closing by hand button, and as other embodiment, can also use has automatic control
The switch of function processed.
Further, separating brake switch is manual brake separating button, and as other embodiment, can also use has automatic control
The switch of function processed.
Fuse is provided in the secondary current supply circuit of the breaker of the present embodiment, fuse is used for the two of protective breaker
Secondary current supply circuit prevents the secondary current supply circuit of breaker to be burned.
The primary circuit of breaker as shown in Figure 2, the concrete structure of the protection exclusive circuit of electrically operated institution as shown in Figure 1,
Wherein, FU is fuse, and QF is electrification behaviour's breaker of plastic casing, corresponding QF:P1 and QF:P2 is electricity behaviour's power supply AC220V；HA is to close
Lock button, TA are opening button, and S11 is experiment work position travel switch in drawer, and S11 corresponding ends number 1 and 3 are in working position
Shi Bianwei close points, S11 corresponding ends number 1 and 2 are in experiment position close point；Such as to the operation of the secondary principle scheme of this electric loop
Under：After electricity, which is grasped, leads to AC220V power supplys, after drawer promotes working position, closing circuit is connected after pressing HA buttons, and plastic housing is disconnected
Road device closes a floodgate, and major loop is connected；When drawer is in experiment position or working position, under the premise of breaker of plastic casing is in and closes a floodgate,
Opening button TA is operated, brake division loop of circuit breaker is connected, breaker open operation, at this point, drawer can be extracted out under secure conditions.When
When breaker is in working position "on" position, this drawer loop is drawn to the maintenance of experiment position or checks that circuit correlation connects
Line, when drawer leaves working position in a flash, the corresponding ends number 1 and 2 S11 are closed state, and brake division loop of circuit breaker is connected, by force
System disconnects closing circuit of circuit breaker, avoids when breaker is in "on" position and extracts drawer out, also avoids on-load operation
Breaker, to ensure personal safety and electric system reliability service.
The present invention forms it into electric blocking, avoids electrically operated institution on-load operation, protect by increasing drawer travel switch
Personal safety and reliability service are demonstrate,proved, circuit structure of the invention is simple, practical reasonable, applied widely, meets operation peace
Entirely, reliable, cost-effective requirement, ensure that the operating status of low-voltage distribution cabinet, further make Operation of Electric Systems safety,
Stablize, economy and power supply reliability are ensured.
Specific embodiment is presented above, but the present invention is not limited to embodiment described above.The present invention
Basic ideas be above-mentioned basic scheme, for those of ordinary skill in the art, introduction according to the present invention is designed each
The model of kind deformation, formula, parameter do not need to spend creative work.The case where not departing from the principle and spirit of the invention
Under to embodiment carry out variation, modification, replacement and deformation still fall in protection scope of the present invention.
Claims (10)
1. a kind of protection exclusive circuit of electrically operated institution, which is characterized in that secondary current supply circuit, breaker including breaker
The sub-gate circuit of closing circuit and breaker, string is in that working position is corresponding to be opened equipped with drawer in the closing circuit of the breaker
It closes and the closing switch of breaker, separating brake of the string equipped with breaker switchs in the sub-gate circuit of the breaker, and the separating brake is opened
It closes both ends and is parallel with drawer in the corresponding switch in experiment position.
2. the protection exclusive circuit of electrically operated institution according to claim 1, which is characterized in that the drawer is in working position
It is travel switch that corresponding switch and drawer, which are in the corresponding switch in experiment position,.
3. the protection exclusive circuit of electrically operated institution according to claim 1, which is characterized in that the closing switch is manual
Switch knob.
4. the protection exclusive circuit of electrically operated institution according to claim 3, which is characterized in that the separating brake switch is manual
Opening button.
5. the protection exclusive circuit of electrically operated institution according to claim 4, which is characterized in that the secondary confession of the breaker
Fuse is provided in electrical circuit.
6. a kind of low-voltage distribution cabinet includes the primary circuit of breaker body and breaker, which is characterized in that further include electric behaviour's machine
The protection exclusive circuit of structure, the exclusive circuit include the secondary current supply circuit of breaker, the closing circuit of breaker and open circuit
The sub-gate circuit of device, string is equipped with drawer and be in that working position is corresponding to be switched and the conjunction of breaker in the closing circuit of the breaker
Lock switchs, and separating brake of the string equipped with breaker switchs in the sub-gate circuit of the breaker, and the separating brake switch ends are parallel with pumping
Drawer is in the corresponding switch in experiment position.
7. low-voltage distribution cabinet according to claim 6, which is characterized in that the drawer be in working position it is corresponding switch and
It is travel switch that drawer, which is in the corresponding switch in experiment position,.
8. low-voltage distribution cabinet according to claim 6, which is characterized in that the closing switch is closing by hand button.
9. low-voltage distribution cabinet according to claim 8, which is characterized in that the separating brake switch is manual brake separating button.
10. low-voltage distribution cabinet according to claim 9, which is characterized in that set in the secondary current supply circuit of the breaker
It is equipped with fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596312.1A CN108598979A (en) | 2018-06-11 | 2018-06-11 | A kind of the protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810596312.1A CN108598979A (en) | 2018-06-11 | 2018-06-11 | A kind of the protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108598979A true CN108598979A (en) | 2018-09-28 |
Family
ID=63628107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810596312.1A Pending CN108598979A (en) | 2018-06-11 | 2018-06-11 | A kind of the protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108598979A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421780A (en) * | 2020-11-12 | 2021-02-26 | 中煤大同能源有限责任公司 | Be applied to pull-out type switch board automation and stop power transmission system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201860057U (en) * | 2010-11-02 | 2011-06-08 | 安徽鑫龙电器股份有限公司 | Circuit control device of low voltage distribution cabinet |
| CN203039278U (en) * | 2013-01-15 | 2013-07-03 | 江苏荣昌机械制造集团有限公司 | Low voltage drawer cabinet live-line operation switch misoperation prevention interlocking device |
| CN206076098U (en) * | 2016-10-13 | 2017-04-05 | 山东泰开成套电器有限公司 | A kind of low voltage cabinet drawer switch on/off electric closes separating device |
| CN206180463U (en) * | 2016-08-31 | 2017-05-17 | 宁波天安（集团）股份有限公司 | Control system of unit is qualified for next round of competitions |
| CN106786099A (en) * | 2017-03-03 | 2017-05-31 | 盛隆电气集团有限公司 | IPanel low-voltage distribution cabinet drawer units prevent unexpected separating brake/combined floodgate system |
| CN206619792U (en) * | 2017-03-29 | 2017-11-07 | 山东鲁亿通智能电气股份有限公司 | A kind of drawer unit control loop with electric operating breaker of plastic casing |
| CN208257244U (en) * | 2018-06-11 | 2018-12-18 | 河南森源电气股份有限公司 | The protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution |
-
2018
- 2018-06-11 CN CN201810596312.1A patent/CN108598979A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201860057U (en) * | 2010-11-02 | 2011-06-08 | 安徽鑫龙电器股份有限公司 | Circuit control device of low voltage distribution cabinet |
| CN203039278U (en) * | 2013-01-15 | 2013-07-03 | 江苏荣昌机械制造集团有限公司 | Low voltage drawer cabinet live-line operation switch misoperation prevention interlocking device |
| CN206180463U (en) * | 2016-08-31 | 2017-05-17 | 宁波天安（集团）股份有限公司 | Control system of unit is qualified for next round of competitions |
| CN206076098U (en) * | 2016-10-13 | 2017-04-05 | 山东泰开成套电器有限公司 | A kind of low voltage cabinet drawer switch on/off electric closes separating device |
| CN106786099A (en) * | 2017-03-03 | 2017-05-31 | 盛隆电气集团有限公司 | IPanel low-voltage distribution cabinet drawer units prevent unexpected separating brake/combined floodgate system |
| CN206619792U (en) * | 2017-03-29 | 2017-11-07 | 山东鲁亿通智能电气股份有限公司 | A kind of drawer unit control loop with electric operating breaker of plastic casing |
| CN208257244U (en) * | 2018-06-11 | 2018-12-18 | 河南森源电气股份有限公司 | The protection exclusive circuit and low-voltage distribution cabinet of electrically operated institution |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112421780A (en) * | 2020-11-12 | 2021-02-26 | 中煤大同能源有限责任公司 | Be applied to pull-out type switch board automation and stop power transmission system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180928 |