CN104685738A - A compact switchgear and a shutter arrangement therefor - Google Patents
A compact switchgear and a shutter arrangement therefor Download PDFInfo
- Publication number
- CN104685738A CN104685738A CN201380040629.2A CN201380040629A CN104685738A CN 104685738 A CN104685738 A CN 104685738A CN 201380040629 A CN201380040629 A CN 201380040629A CN 104685738 A CN104685738 A CN 104685738A
- Authority
- CN
- China
- Prior art keywords
- switchgear
- circuit breaker
- monolithic
- stationary contacts
- groups
- 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
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
-
- 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
- H02B11/24—Shutters or guards
-
- 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
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/305—Cable entries
-
- 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
- H02B1/56—Cooling; Ventilation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Gas-Insulated Switchgears (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
- Trip Switchboards (AREA)
Abstract
The invention relates to a compact switchgear having more simplified construction. The switchgear of the invention comprises a circuit breaker and a monoblock. The monoblock is electrically connectible to the circuit breaker of the switchgear. The invention also provides a shutter arrangement for the compact switchgear of the invention. The invention further relates to a method of operating the switchgear having the shutter arrangement, of the invention.
Description
Technical field
The present invention relates to a kind of switchgear (switchgear) and relate more specifically to a kind of compact switchgear with the structure more simplified.
Background technology
In current electric power distribution system, pivotal player played the part of by switchgear.According to current plan, switchgear performs three major functions about power distribution.These major functions are electic protection, the electric insulation of portion's section of installation and control.The electic protection function of switchgear relate to protective circuit element from the thermal stress of short circuit current and mechanical stress, when failure of insulation protection personnel and protection be supplied with the electrical equipment of electric power and device.The electric insulation functions of switchgear relates to makes equipment power-off or insulation to allow to finish the work safely in insulation division office.The controlling functions of switchgear allows operating personnel to revise the distribution system of load as required at any time.The controlling functions of switchgear is included in the ordinary tap of electric power system place, emergency switch and attended operation.
Above-mentioned functions is provided by the various functional units of switchgear by switchgear.Different functions is segmented in the functional unit of switchgear between different parts.One of essential elements in switchgear is circuit breaker (circuit breaker).The size of switchgear is usually by about the circuit breaker used in the structure of switchgear.Another factor affecting the size of switchgear is the type of frame (racking).Traditionally based on the type of the frame of circuit breaker, there is the structure of two types in switchgear, namely vertically insulate and level insulation.But in the structure of these two types, the contact arm of circuit breaker occupies large quantity space.And due to the long contact arm of circuit breaker, the cost of material is also higher.Long contact arm causes longer current path, and it causes power loss, heat to produce and too much materials'use.Also difficulty is produced, because the various parts of switchgear are not pre-assembled by Assembling in assembled switch equipment.Two means for screening (shutter mechanism) and for the existence of the ventilating opening installing air flue also cause switchgear be subject to dust impact.This cause switchgear to enter protection class influenced.
Switchgear is frequently used in the region of construction area or other limited space.Therefore, except the simplicity of performance and structure and assembling, the compactedness of switchgear is extremely important.Therefore, the compact switchgear with the structure more simplified and the performance more improved is needed.
Summary of the invention
The object of this invention is to provide a kind of compact switchgear with the structure more simplified.
Another object of the present invention is to provide the effective compact switchgear of a kind of cost.
Another object of the present invention is to provide a kind of compact switchgear with the cable termination height of increase.
Another object of the present invention is also to provide a kind of compact switchgear with such current path, and this current path is shorter and have and better enter protection.
Another object of the present invention is to provide the shield assemblies (shutter arrangement) for compact switchgear of the present invention.
Therefore, the invention provides the switchgear that one has circuit breaker and monolithic (monoblock).Circuit breaker has two groups of movable contacts, and one group of movable contact electrically can be connected to wire jumper (jumper) and another group movable contact electrically can be connected to current transformer.Monolithic has two groups of stationary contacts, and one group of stationary contacts electrically can be connected to wire jumper and another group stationary contacts electrically can be connected to current transformer.Monolithic electrically can be connected to circuit breaker.Another group movable contact of one group of movable contact of circuit breaker and circuit breaker can slide, to allow to engage or be disengaged respectively in another group stationary contacts of the correspondence of of the correspondence of monolithic group stationary contacts and monolithic.This joint or be disengaged and respectively circuit breaker be connected with block electric or be separated.
The present invention also provides a kind of shield assemblies for switchgear of the present invention.Shield assemblies for switchgear is included in the covering provided when they are disengaged between two groups of movable contacts of circuit breaker and two groups of stationary contacts of monolithic, and for operating the operated device of covering.Described covering is located with the relation of the correspondence relative to described two groups of movable contacts of described circuit breaker and described two groups of stationary contacts of described monolithic, makes it engage or be disengaged to allow described two groups of movable contacts of described circuit breaker to described two groups of stationary contacts of the corresponding of monolithic according to the relative translative movement of described circuit breaker.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the traditional level insulation switchgear according to prior art;
Fig. 2 a shows the schematic diagram according to switchgear of the present invention, and wherein the contact of circuit breaker and monolithic is in the position be disengaged;
Fig. 2 b shows the schematic diagram according to switchgear of the present invention, and wherein the contact of circuit breaker and monolithic is in the position engaged;
Fig. 3 shows the isometric view according to circuit breaker of the present invention;
Fig. 4 a shows the isometric view according to monolithic of the present invention; And
Fig. 4 b shows the monolithic according to Fig. 4 a of the present invention.
Embodiment
The present invention relates to a kind of compact switchgear with the structure more simplified.More specifically with reference to an exemplary embodiment, the present invention is described.
Fig. 1 is the schematic diagram of traditional level insulation switchgear 100, and it comprises power supply cable 110, is connected to the current transformer 120 of current transformer side stationary contacts 140, wire jumper 130, the busbar 160 being connected to bus side stationary contacts 150, air flue 170, circuit breaker 180 and two means for screening 190.Circuit breaker comprises circuit breakers pole 183, and two contact arms 184 and 185 are located thereon.Contact arm 184 and 185 has contact 186 and 189 respectively.The contact 186 of circuit breaker 180 electrically can be connected to current transformer side contact 140.The contact 189 of circuit breaker 180 can electrically be connected to bus side contact 150.In addition, the top of switchgear 100 is provided with integrated for air flue of ventilating opening 175.
During the normal processes of operation, exist between bus side stationary contacts 150 and current transformer side stationary contacts 140 and be electrically connected.When circuit breaker 180 becomes activity, circuit breakers pole 183 moves in the mode of level, causes two means for screening 190 to be pulled.When circuit breakers pole 183 moves, these two coverings of two means for screening 190 are pulled away from each other in vertical mode by the operating mechanism of two means for screening 190.This causes stationary contacts 150 and 140 to be exposed to the contact 186 and 189 of circuit breaker 180, and the contact 186 and 189 of circuit breaker 180 contacts with stationary contacts 140 and 150 thus, thus has the joint of contact.
The clearance spaces of this movement needs in switchgear 100 of circuit breakers pole 183.Retained vacant space is directly related with the length of the contact arm 184 and 185 of circuit breaker 180.Therefore, the switchgear had with the circuit breaker of longer contact arm is larger dimensionally.This is less desirable feature in switchgear.Space on circuit breaker 180 is not also utilized in the traditional design of switchgear 100.In addition, when the contact arm of circuit breaker is longer, the cost of material is also higher.In traditional design, current carrying path is longer.This causes power loss, heat to produce increase and copper excessively uses.And in traditional design, the increase (by helping improve the feature of the expectation of the thermal life of switchgear) of cable termination length increases causing the size of switchgear, and this is less desirable.In order to being integrated in traditional design of air flue 170 arranges ventilating opening 175 and cause dust to enter in switchgear 100 on top.This cause switchgear to enter protection level grade influenced.
The present invention is solved these problems by the new construction proposing switchgear.Fig. 2 a and 2b is the schematic diagram according to switchgear 200 of the present invention.In order to simplify, the relevant portion be re-arranged of switchgear is only shown in the drawings.
Fig. 2 a is the schematic diagram according to switchgear 200 of the present invention, wherein movable contact and stationary contacts in the position be disengaged and covering between movable contact and stationary contacts.Circuit breaker 210 has two groups of movable contacts 216 and 219, and it is perpendicular to the axis of circuit breakers pole 213.Current transformer 250 is positioned on the top of circuit breaker 210.In the exemplary embodiment, current transformer 250 is arranged on the top of circuit breaker 210 in side together with power supply cable 270., there is wire jumper 230 in contiguous current transformer 250.Wire jumper 230 is located on the top of monolithic 260.This monolithic has two groups of stationary contacts 263 and 266, and one group of stationary contacts 263 is electrically connected to wire jumper 230 and another group stationary contacts 266 is electrically connected to current transformer 250.These two groups of stationary contacts 263 and 266 are arranged in monolithic 260.With the relation of the correspondence relative to circuit breaker 210, monolithic 260 is located so that these two groups of movable contacts 216 and 219 of circuit breaker 210 can be accommodated in the bottom of monolithic 260, the bottom of monolithic is hollow wherein.The bottom of monolithic has the room of these two groups of movable contacts 216 and 219 that can hold circuit breaker 210.For switchgear 200 provides shield assemblies 220.Circuit breaker 210 of the present invention has the moving device/assembly for running circuit breaker 210.In the exemplary embodiment, this moving assembly is illustrated by frame handle (racking handle) 283, frame bolt 286 and the framework with wheel 289.By operation frame handle 283, operator can in switchgear 200 running circuit breaker 210.
These two groups of stationary contacts 263 and 266 of these two groups of movable contacts 216 and 219 and monolithic 260 that Fig. 2 b shows circuit breaker 210 engage.The covering 223 of shield assemblies 220 is moved thus allows the joint of the contact of circuit breaker and monolithic.
Fig. 3 shows the circuit breaker according to switchgear of the present invention.See from Fig. 3, these two groups of movable contacts 216 and 219 of circuit breaker 210 are directly installed on circuit breakers pole 213, therefore eliminate the contact arm 184 and 185 of circuit breaker shown in Figure 1.
Fig. 4 a and 4b shows monolithic 260 of the present invention.Two groups of stationary contacts 263 and 266 are arranged in monolithic 260.
When activating, circuit breaker 210 moves horizontally to monolithic.In this room causing circuit breakers pole 213 to move in the bottom of monolithic 260, these two groups of movable contacts 216 and 219 of circuit breaker 210 are caused to engage by sliding with these two groups of stationary contacts 263 and 266 of monolithic 260 thereon.In the present invention, air flue 240 is for good and all attached to switchgear 200, eliminates the ventilating opening 175 existed in traditional design thus.
Shield assemblies 220 prevents these two groups of movable contacts 216 and 219 of circuit breaker 210 to be unexpectedly connected electrically to these two groups of stationary contacts 263 and 266 of monolithic 260.Shield assemblies comprises covering 223 and operated device 226.Two groups of movable contacts 216 and 219 of described circuit breaker 210, two groups of stationary contacts 263 and 266 of monolithic 260 and covering 223 are located with corresponding relation relative to each other, wherein, according to the relative motion of circuit breaker 210, covering 223 moves to allow described two groups of movable contacts 216 and 219 of circuit breaker 210 engage with described two groups of stationary contacts 263 and 266 of monolithic 260 or be disengaged.Based on the motion of circuit breaker 210, the operated device 226 of shield assemblies 220 operates covering 223.Operated device 226 comprises covering guide portion 227 and action bars 228.The covering guide portion 227 that moves through of covering 223 guides.Covering 223 is moved by action bars 228 (it is mechanically connected to circuit breaker 210).
Due to by use monolithic this novelty and creationary structure, switchgear is compacter.By removing the contact arm of circuit breaker, the cost of material is also lowered, and adds the cost efficiency of switchgear.Due to monolithic, switchgear itself obtains modular nature, because this simplify assembling process.Monolithic element can be assembled independently.This also reduces or has eliminated incorrect assembling.Similarly, be used for connecting owing to introducing monolithic, also eliminate the needs to having current transformer at proximity to circuit breakers.Current transformer is placed in higher plane by this permission, thus increases cable termination length when not increasing the height of circuit breaker.By reducing the size of switchgear and the contact arm by removing circuit breaker, current carrying path is also reduced.This helps to improve efficiency, reduces power loss, improves the thermal life and reduce materials'use.
Also by using single shield assemblies and removing the ventilating opening on the top of switchgear, switchgear is made not to be subject to dust.This helps improvement to enter protection level.
Therefore, the invention provides a kind of compact switchgear, it is saved cost and has shorter current path, simple structure, better thermal life management, simple assembling and better enter protection.
Claims (20)
1. a switchgear, it comprises:
Circuit breaker; And
Monolithic, wherein, described monolithic can electrically be connected to described circuit breaker.
2., as the switchgear as described in claim 1, wherein, described switchgear also comprises shield assemblies.
3., as the switchgear as described in claim 1, wherein, described monolithic is positioned on the top of described circuit breaker.
4., as the switchgear as described in claim 1, wherein, described circuit breaker can move.
5. as the switchgear as described in claim 4, wherein, described circuit breaker comprises moving assembly for mobile described circuit breaker.
6., as the switchgear as described in claim 1, wherein, described monolithic has wire jumper.
7., as the switchgear as described in claim 1, it also comprises air flue.
8. as the switchgear as described in claim 1, wherein, described circuit breaker comprises two groups of movable contacts, and one group of movable contact electrically can be connected to wire jumper and another group movable contact electrically can be connected to current transformer.
9. as the switchgear as described in claim 1, wherein, described monolithic comprises two groups of stationary contacts, and one group of stationary contacts electrically can be connected to wire jumper and another group stationary contacts electrically can be connected to current transformer.
10., as the switchgear as described in claim 1, it also comprises the power supply cable being connected to current transformer.
11., as the switchgear as described in claim 10, wherein, are connected to the position of length independent of described circuit breaker of the described power supply cable of described current transformer.
12. as the switchgear as described in claim 8, and wherein, one or more movable contact of one or more movable contact of described one group of movable contact of described circuit breaker and the correspondence of another group movable contact described is arranged in Different Plane.
13. as the switchgear as described in claims 9, and wherein, one or more stationary contacts of one or more stationary contacts of described one group of stationary contacts of described monolithic and the correspondence of another group stationary contacts described is arranged in Different Plane.
14. as the switchgear described in claim 8 and 9, and wherein, described monolithic also comprises the hollow space of the described two groups of movable contacts for holding described circuit breaker.
15. as the switchgear described in claim 8 and 9 or 14, wherein, another group movable contact described of described one group of movable contact of described circuit breaker and described circuit breaker can slide, to allow to engage or be disengaged respectively in another group stationary contacts described in the correspondence of described one group of stationary contacts of the correspondence of described monolithic and described monolithic; Described circuit breaker is connected with described block electric or is separated.
16. 1 kinds of shield assemblies, it is for the switch module such as described in any one of aforementioned claim, and it comprises:
The covering provided between described two groups of movable contacts and described two groups of stationary contacts of described monolithic of described circuit breaker; And
For operating the operated device of described covering, wherein, described covering is located with the relation of the correspondence relative to described two groups of movable contacts of described circuit breaker and described two groups of stationary contacts of described monolithic, engages to allow described two groups of movable contacts of described circuit breaker according to the relative motion of described circuit breaker or is disengaged with described two groups of stationary contacts of the corresponding of described monolithic.
17. as the shield assemblies as described in claim 16, and wherein, described covering has the layer of epoxy resin.
18. as the shield assemblies as described in claim 16, and wherein, described covering is flexible.
19. as the shield assemblies as described in claim 16, and wherein, described operated device comprises:
For guiding the covering guide portion of the motion of described covering; And
Action bars is with mobile described covering, and described action bars is mechanically connected to described circuit breaker.
20. 1 kinds of operations are as the method for the switchgear according to any one of claim 1 to 15, and described switchgear has as the shield assemblies according to any one of claim 16 to 19, and described method comprises:
The described circuit breaker of mobile described switchgear;
The operated device of shield assemblies according to the corresponding motor performance of described circuit breaker;
When according to the corresponding movement of its described circuit breaker of described switchgear one group of movable contact of described circuit breaker and another group movable contact organize with one group of stationary contacts of the monolithic of described switchgear and another respectively operate described operated device during stationary contacts engages or is disengaged, the covering operating described shield assemblies with by its correspondence and/or the movement of being correlated with open or close; And
Described block electric is connected to described circuit breaker.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN3119CH2012 | 2012-07-31 | ||
| IN3119/CHE/2012 | 2012-07-31 | ||
| PCT/IB2013/001669 WO2014020409A2 (en) | 2012-07-31 | 2013-07-31 | A compact switchgear and a shutter arrangement therefor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104685738A true CN104685738A (en) | 2015-06-03 |
Family
ID=49301539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380040629.2A Pending CN104685738A (en) | 2012-07-31 | 2013-07-31 | A compact switchgear and a shutter arrangement therefor |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2880728A2 (en) |
| CN (1) | CN104685738A (en) |
| SG (1) | SG11201406591SA (en) |
| WO (1) | WO2014020409A2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240492A1 (en) * | 1972-08-17 | 1974-04-25 | Krone Gmbh | SINGLE POLE MEDIUM VOLTAGE THREE-PHASE SWITCH |
| JPH1198626A (en) * | 1997-09-24 | 1999-04-09 | Togami Electric Mfg Co Ltd | Unit position indicating device for enclosed switchboard and method for the same |
| CN2491991Y (en) * | 2001-08-12 | 2002-05-15 | 广东省顺德开关厂有限公司 | Handcart switch cabinet |
| CN201639181U (en) * | 2010-03-25 | 2010-11-17 | 常熟市通用电器厂有限公司 | Handcart for FC loop high-voltage central-positioned aggregated switchgear |
| US20110299228A1 (en) * | 2010-06-07 | 2011-12-08 | Abd El & Larson Holdings LLC | Multi-access Switchgear Assembly |
| DE102010046103A1 (en) * | 2010-09-21 | 2012-03-22 | Abb Ag | Electrical switching device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB905425A (en) * | 1958-09-22 | 1962-09-05 | Gardy Particip App | Improvements in and relating to polyphase current transformers |
| JP2875293B2 (en) * | 1989-08-11 | 1999-03-31 | 株式会社日立製作所 | Switchboards and circuit breakers |
| US4950854A (en) * | 1989-10-31 | 1990-08-21 | Electric Services, Inc. | Vacuum operated circuit breaker apparatus for replacing air-magnetic circuit breaker assemblies |
| US8477503B2 (en) * | 2010-01-05 | 2013-07-02 | Shanghai Guangdian Electric Group Co., Ltd. | Switch cabinet connection and combination apparatus and method of manufacturing the same |
-
2013
- 2013-07-31 WO PCT/IB2013/001669 patent/WO2014020409A2/en active Application Filing
- 2013-07-31 CN CN201380040629.2A patent/CN104685738A/en active Pending
- 2013-07-31 EP EP13771590.0A patent/EP2880728A2/en not_active Withdrawn
- 2013-07-31 SG SG11201406591SA patent/SG11201406591SA/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240492A1 (en) * | 1972-08-17 | 1974-04-25 | Krone Gmbh | SINGLE POLE MEDIUM VOLTAGE THREE-PHASE SWITCH |
| GB1425087A (en) * | 1972-08-17 | 1976-02-18 | Krone Gmbh | Three-phase circuit breaker for single-pole switching |
| JPH1198626A (en) * | 1997-09-24 | 1999-04-09 | Togami Electric Mfg Co Ltd | Unit position indicating device for enclosed switchboard and method for the same |
| CN2491991Y (en) * | 2001-08-12 | 2002-05-15 | 广东省顺德开关厂有限公司 | Handcart switch cabinet |
| CN201639181U (en) * | 2010-03-25 | 2010-11-17 | 常熟市通用电器厂有限公司 | Handcart for FC loop high-voltage central-positioned aggregated switchgear |
| US20110299228A1 (en) * | 2010-06-07 | 2011-12-08 | Abd El & Larson Holdings LLC | Multi-access Switchgear Assembly |
| DE102010046103A1 (en) * | 2010-09-21 | 2012-03-22 | Abb Ag | Electrical switching device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2880728A2 (en) | 2015-06-10 |
| SG11201406591SA (en) | 2015-02-27 |
| WO2014020409A2 (en) | 2014-02-06 |
| WO2014020409A3 (en) | 2014-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |