CN204577971U - Anti-on-load is operated a switch the middle-placed switch cabinet of cutter - Google Patents
Anti-on-load is operated a switch the middle-placed switch cabinet of cutter Download PDFInfo
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- CN204577971U CN204577971U CN201520243336.0U CN201520243336U CN204577971U CN 204577971 U CN204577971 U CN 204577971U CN 201520243336 U CN201520243336 U CN 201520243336U CN 204577971 U CN204577971 U CN 204577971U
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- locking member
- isolating switch
- cabinet
- switch
- circuit breaker
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Abstract
The middle-placed switch cabinet that the utility model provides a kind of anti-on-load to operate a switch cutter, comprises the circuit breaker be arranged in breaker cabinet, the isolating switch be arranged in isolating switch cabinet, the first locking member, the second locking member and opening tool.First locking member is arranged in breaker cabinet, deciliter state of limiting circuit breaker, and when the first locking member locking circuit breaker, circuit breaker is in gate-dividing state.Second locking member is arranged in isolating switch cabinet, deciliter state of restriction isolating switch, and when the second locking member locking isolating switch, isolating switch is in "on" position.Opening tool opens the first locking member or the second locking member, any instant, and opening tool can only open one in the first locking member or the second locking member.The middle-placed switch cabinet that the present embodiment provides shares an opening tool with regard to the second locking member due to the first locking, and therefore when breaker closing, isolating switch cannot carry out separating brake, effectively avoids on-load to operate a switch cutter.
Description
Technical field
The utility model relates to high voltage power distribution field, and the middle-placed switch cabinet of cutter of operating a switch in particular to a kind of anti-on-load.
Background technology
The full name of middle-placed switch cabinet is metal armouring middle disposed withdrawn type switchgear, belongs to high voltage distribution installation.Middle-placed switch cabinet for accepting and join the network power of 3.6kV ~ 12kV, and carries out Control protection, monitoring and measuring to power circuit.Middle-placed switch cabinet is mainly used in power plant, the power transmission of medium and small generator, powered, the power transmission of electric power system secondary substation, the distribution of industrial and mineral enterprises and institutions and the starting etc. of Large-scale High-Pressure motor.
Circuit breaker and isolating switch are the vitals of middle-placed switch cabinet, and both are all positioned at the intermediate layer of middle-placed switch cabinet.Circuit breaker is generally made up of contact system, arc quenching system, operating mechanism, release, shell etc., and its effect cuts off and connects load circuit and disengagement failure circuit, and Accident prevention expands, and ensures safe operation.Isolating switch effect forms obvious cut-off point at electrical connection position, so general the born power frequency electric flow valuve of isolating switch is not too large.When circuit breaker does not disconnect and directly disconnects isolating switch, because isolating switch does not arrange arc quenching system, cut off the moment of load current, electrically understand arcing.Electric arc not only can accidentally injure operating personnel; While producing electric arc, current value can become comparatively large, considerably beyond the load current of isolating switch, can produce high temperature, the performance of badly damaged isolating switch simultaneously.
Utility model content
In order to overcome existing middle-placed switch cabinet, the utility model easily occurs that on-load is operated a switch the problem of misoperation of cutter, provide the middle-placed switch cabinet that a kind of anti-on-load operates a switch cutter.
To achieve these goals, the middle-placed switch cabinet that the utility model provides a kind of anti-on-load to operate a switch cutter, comprises the circuit breaker be arranged in breaker cabinet, the isolating switch be arranged in isolating switch cabinet, the first locking member, the second locking member and opening tool.First locking member is arranged in breaker cabinet, deciliter state of limiting circuit breaker, and when the first locking member locking circuit breaker, circuit breaker is in gate-dividing state.Second locking member is arranged in isolating switch cabinet, deciliter state of restriction isolating switch, and when the second locking member locking isolating switch, isolating switch is in "on" position.Opening tool opens the first locking member or the second locking member, any instant, and opening tool can only open one in the first locking member or the second locking member.
In the utility model one embodiment, the first locking member comprises the first lock body and the first fixing hole, and the first lock body is fixed on circuit breaker, and the first fixing hole is arranged at the front end of the sidewall of breaker cabinet; Second locking member comprises the second lock body and the second fixing hole, and the second lock body is fixed on isolating switch, and the second fixing hole is arranged at the rear end of the sidewall of isolating switch cabinet.
In the utility model one embodiment, the structure of the first lock body is identical with the structure of the second lock body, includes housing, lock core and dead bolt, and the upper surface of housing has the lockhole be connected with lock core, opening tool is contacted with lock core by lockhole, drives lock core to drive dead bolt motion.
In the utility model one embodiment, first locking member is identical with the structure of the second locking member, include connecting rod and stop tab, stop tab is arranged at connecting rod along the circumference of connecting rod, opening tool drives connecting rod to drive stop tab motion, when opening tool is positioned at horizontal level, the sidewall of stop tab to circuit breaker or isolating switch stops, limiting circuit breaker or isolating switch motion.
In the utility model one embodiment, the stop tab on the first locking member is less than the distance of stop tab to breaker cabinet rear end face to the distance of breaker cabinet front end face; Stop tab on second locking member is greater than the distance of stop tab to isolating switch cabinet rear end face to the distance of isolating switch cabinet front end face.
In the utility model one embodiment, the first locking member, the second locking member and opening tool are provided with same mark.
In sum, the anti-on-load that the utility model provides operate a switch cutter middle-placed switch cabinet compared with prior art, have the following advantages:
By arranging the first locking member of limiting circuit breaker deciliter state in breaker cabinet, the second locking member of restriction isolating switch deciliter state is set in isolating switch cabinet.When circuit breaker and isolating switch are all in "on" position, the first locking member is opened, and the second locking member is closed.Because any instant opening tool can only open one in the first locking member and the second locking member, therefore, now opening tool and the first locking member are fixed, both cannot be separated, operator cannot open the second locking member, i.e. fixing during the state of now isolating switch, can only be in "on" position.Only have when after the first locking member locking (i.e. breaker open operation), opening tool could be separated with the first locking member, and operator could open the second locking member and carry out disconnecting switch operation.The anti-on-load that the utility model provides is operated a switch in the middle-placed switch cabinet of cutter, first locking member and the second locking member share an opening tool, this is arranged to only have when circuit breaker is in gate-dividing state, and isolating switch just can operate, and this setting effectively can avoid isolating switch bringing onto load separating brake.
For above-mentioned and other objects, features and advantages of the present utility model can be become apparent, preferred embodiment cited below particularly, and coordinate accompanying drawing, be described in detail below.
Accompanying drawing explanation
Figure 1 shows that anti-on-load that the utility model embodiment one provides is operated a switch the structural representation of middle-placed switch cabinet of cutter.
Figure 2 shows that the structural representation of the first locking body or the second locking body in Fig. 1.
Figure 3 shows that anti-on-load that the utility model embodiment two provides is operated a switch the structural representation of middle-placed switch cabinet of cutter.
Figure 4 shows that the structural representation of opening tool.
Embodiment
Embodiment one
As shown in Figure 1, the operate a switch middle-placed switch cabinet of cutter of the anti-on-load that the present embodiment provides comprises the circuit breaker 2 be arranged in breaker cabinet 1, is arranged on isolating switch 4, first locking member 5, second locking member 6 in isolating switch cabinet 3 and opening tool 7.First locking member 5 is arranged in breaker cabinet 1, deciliter state of limiting circuit breaker 2, and when circuit breaker 2 locked by the first locking member 5, circuit breaker 2 is in gate-dividing state.Second locking member 6 is arranged in isolating switch cabinet 3, and deciliter state of restriction isolating switch 4, when isolating switch 4 locked by the second locking member 6, isolating switch 4 is in "on" position.Opening tool 7 opens the first locking member 5 or the second locking member 6, any instant, and opening tool 7 can only open one in the first locking member 5 or the second locking member 6.
In high voltage distribution installation, as electricity consumption distribute circuit breaker for connecting and cutting off load circuit, circuit breaker is provided with arc-control device.And isolating switch is as cut-off point, it does not arrange arc-control device, its electric current that can bear is less.Therefore, forbid that in high pressure field on-load is operated a switch cutter, namely forbid isolating switch separating brake during breaker closing.But, in the operation of existing high-voltage board, because circuit breaker and isolating switch are provided separately, between the two without any association, operating personnel are inevasible when operation to operate a switch cutter by on-load, the accident in bringing to system or personal injury.
In the present embodiment, by arranging deciliter state of the first locking member 5 limiting circuit breaker 2, deciliter state that the second locking member 6 limits isolating switch 4 is set.Concrete restriction is as follows:
When normally working, circuit breaker 2 and isolating switch 4 are all in "on" position, and now the first locking member 5 is in open mode, and the second locking member 6 is in locking state.Because opening tool 7 can only open one in the first locking member 5 and the second locking member 6 at any one time, therefore, now opening tool 7 cannot be separated with the first locking member 5, operator cannot open the second locking member 6, namely the state of isolating switch 4 cannot change, also just cannot realize separating brake, can effectively avoid on-load to operate a switch cutter.
When circuit breaker 2 is in gate-dividing state, circuit breaker 2 locked by the first locking member 5, and now opening tool 7 is separated with the first locking member 5, and operator can open isolating switch 4, realizes the separating brake of isolating switch 4.
In existing middle-placed switch cabinet, be gate-dividing state when circuit breaker 2 is positioned at breaker cabinet 1 when this side of operator, and be gate-dividing state when being positioned at this side away from operator of breaker cabinet 1.Same, it is separating brake that isolating switch 4 is positioned at isolating switch cabinet near this side of operator, away from being combined floodgate.
In the present embodiment, the first locking member 5 is set and comprises the first lock body 51 and the first fixing hole 52.First lock body 51 is fixed on circuit breaker 2, and the first fixing hole 52 is arranged at the front end of the sidewall of breaker cabinet 1.The second fixing hole 62 that second locking member 6 comprises the second lock body 61 and is flexibly connected with the second lock body 61.Second lock body 62 is fixed on isolating switch 4, and the second fixing hole 62 is arranged at the rear end of the sidewall of isolating switch cabinet 3.
Because the first fixing hole 52 is arranged at the front end of breaker cabinet 2, namely when the first lock body 51 and the first fixing hole 52 are locked, circuit breaker 2 is in gate-dividing state.In isolating switch cabinet 3, arrange the rear end that the second fixing hole 62 is positioned at isolating switch cabinet sidewall, this will make, and when the second lock body 61 and the second fixing hole 62 are locked, isolating switch is in "on" position.
In the present embodiment, the first lock body 51 is identical with the structure of the second lock body 61, includes housing 511, lock core 512 and dead bolt 513.The upper surface of housing 511 has the lockhole be connected with lock core 512, and opening tool 7 is contacted with lock core 512 by lockhole, drives lock core 512 to drive dead bolt 513 to move, and realizes with the locking of the first fixing hole 52 or the second fixing hole 62 or is separated.
For ease of coupling opening tool 7 and the first locking member 5 or the second locking member 6, arrange on the first locking member 5, second locking member 6 and opening tool 7 and be provided with same mark 8.In the present embodiment, mark 8 is for being engraved in the numeral on the first locking member 5, second locking member 6 and opening tool 7.But the utility model is not limited in any way this.
Embodiment two
The present embodiment is with embodiment one and change substantially identical, and difference is, the first locking member 6 is identical with the structure of the second locking member 7, includes connecting rod 9 and stop tab 10.Stop tab 10 is arranged at connecting rod 9 along the circumference of connecting rod.Opening tool 7 drives connecting rod 9 to drive stop tab 10 to move, and when opening tool 7 is positioned at horizontal level, the rear end face of stop tab 10 pairs of circuit breakers 2 or the front end face of isolating switch 4 stop, limiting circuit breaker 2 or isolating switch 4 move.
For matching with existing middle-placed switch cabinet, the distance arranging stop tab distance breaker cabinet 1 front end face on the first locking member 5 is less than the distance of stop tab to breaker cabinet 1 rear end face.Stop tab distance on second locking member 6 to the distance of isolating switch cabinet 3 front end face is greater than the distance of stop tab isolation by distance switch cubicle 3 rear end face.
In sum, by arranging the first locking member 5 of limiting circuit breaker 2 deciliters states in breaker cabinet 1, the second locking member 6 of restriction isolating switch 4 deciliters states is set in isolating switch cabinet 3.When circuit breaker 2 and isolating switch 4 are all in "on" position, the first locking member 5 is opened, and the second locking member 6 is locking.Because any instant opening tool 7 can only open one in the first locking member 5 and the second locking member 6, therefore, now opening tool 7 and the first locking member 5 are fixed, both cannot be separated, operator cannot open the second locking member 6, fixing during the state of i.e. now isolating switch 4, can only "on" position be in.Only have after the first locking member 5 locks (i.e. breaker open operation), opening tool 7 could be separated with the first locking member 5, and operator could open the second locking member 6 and carry out disconnecting switch operation.The anti-on-load that the utility model provides is operated a switch in the middle-placed switch cabinet of cutter, first locking member 5 and the second locking member 6 share an opening tool 7, this is arranged to only have when circuit breaker 2 is in gate-dividing state, and isolating switch 4 just can operate, and this setting effectively can avoid isolating switch bringing onto load separating brake.
Although the utility model discloses as above by preferred embodiment; but and be not used to limit the utility model; anyly know this those skilled in the art; not departing from spirit and scope of the present utility model; can do a little change and retouching, therefore protection range of the present utility model is when being as the criterion depending on claims scope required for protection.
Claims (6)
1. anti-on-load is operated a switch a middle-placed switch cabinet for cutter, comprises the circuit breaker be arranged in breaker cabinet and the isolating switch be arranged in isolating switch cabinet, it is characterized in that, also comprise:
First locking member, is arranged in described breaker cabinet, limits deciliter state of described circuit breaker, and when the first locking member locking circuit breaker, circuit breaker is in gate-dividing state;
Second locking member, is arranged in described isolating switch cabinet, limits deciliter state of described isolating switch, and when the second locking member locking isolating switch, isolating switch is in "on" position;
Opening tool, opens described first locking member or the second locking member, any instant, and opening tool can only open one in the first locking member or the second locking member.
2. anti-on-load according to claim 1 is operated a switch the middle-placed switch cabinet of cutter, it is characterized in that, described first locking member comprises the first lock body and the first fixing hole, and described first lock body is fixed on described circuit breaker, and the first fixing hole is arranged at the front end of the sidewall of described breaker cabinet; Described second locking member comprises the second lock body and the second fixing hole, and described second lock body is fixed on isolating switch, and the second fixing hole is arranged at the rear end of the sidewall of isolating switch cabinet.
3. anti-on-load according to claim 2 is operated a switch the middle-placed switch cabinet of cutter, it is characterized in that, the structure of described first lock body is identical with the structure of the second lock body, include housing, lock core and dead bolt, the upper surface of described housing has the lockhole be connected with described lock core, described opening tool is contacted with lock core by lockhole, drives lock core to drive dead bolt motion.
4. anti-on-load according to claim 1 is operated a switch the middle-placed switch cabinet of cutter, it is characterized in that, described first locking member is identical with the structure of the second locking member, include connecting rod and stop tab, described stop tab is arranged at described connecting rod along the circumference of connecting rod, and opening tool drives connecting rod to drive stop tab motion, when opening tool is positioned at horizontal level, the sidewall of stop tab to circuit breaker or isolating switch stops, limiting circuit breaker or isolating switch motion.
5. anti-on-load according to claim 1 is operated a switch the middle-placed switch cabinet of cutter, and it is characterized in that, the stop tab on described first locking member is less than the distance of described stop tab to breaker cabinet rear end face to the distance of breaker cabinet front end face; Stop tab on described second locking member is greater than the distance of described stop tab to isolating switch cabinet rear end face to the distance of isolating switch cabinet front end face.
6. anti-on-load according to claim 1 is operated a switch the middle-placed switch cabinet of cutter, it is characterized in that, described first locking member, the second locking member and opening tool are provided with same mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243336.0U CN204577971U (en) | 2015-04-21 | 2015-04-21 | Anti-on-load is operated a switch the middle-placed switch cabinet of cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520243336.0U CN204577971U (en) | 2015-04-21 | 2015-04-21 | Anti-on-load is operated a switch the middle-placed switch cabinet of cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204577971U true CN204577971U (en) | 2015-08-19 |
Family
ID=53870566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520243336.0U Active CN204577971U (en) | 2015-04-21 | 2015-04-21 | Anti-on-load is operated a switch the middle-placed switch cabinet of cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204577971U (en) |
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2015
- 2015-04-21 CN CN201520243336.0U patent/CN204577971U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200131 Address after: 311800 Zhejiang city of Shaoxing province Zhuji City Tao Street Genta West Road No. 96 Patentee after: Zhuji Dongbai Electric Power Installation Engineering Co., Ltd. Address before: 311800 Zhejiang city of Shaoxing province Zhuji city streets Tao Zhu Chongde Road No. 85 Patentee before: Zhuji Dongbai Electric Power Equipment Manufacturing Co., Ltd. |