CN206865380U - A kind of double vacuum contactor soft starter devices of multi-cavity type - Google Patents
A kind of double vacuum contactor soft starter devices of multi-cavity type Download PDFInfo
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- CN206865380U CN206865380U CN201720775236.1U CN201720775236U CN206865380U CN 206865380 U CN206865380 U CN 206865380U CN 201720775236 U CN201720775236 U CN 201720775236U CN 206865380 U CN206865380 U CN 206865380U
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Abstract
A kind of double vacuum contactor soft starter devices of multi-cavity type of the utility model, belong to contactor soft starter device technical field；Technical problem to be solved is：A kind of multi-cavity type double vacuum contactor soft starter devices of multi-cavity type every control, the protection of more contactors are provided；Solve technical scheme that the technical problem uses for：Input terminal L1, L2, L3 are connected with isolating reversing switch K1 end of incoming cables; it is connected after isolation reversing switch K1 leading-out terminal concatenation silicon controlled component with the end of incoming cables of the second vacuum contactor; the leading-out terminal of the second vacuum contactor S2 picks out line terminals U, V, W; first vacuum contactor S1 is attempted by the both ends of silicon controlled component; the end of incoming cables of the control transformer T1 is connected with isolating any two-phase of reversing switch K1 leading-out terminals, described to control transformer T1 to provide power supply for soft startup protection device；The utility model is applied to underground coal mine high voltage power distribution region.
Description
Technical field
A kind of double vacuum contactor soft starter devices of multi-cavity type of the utility model, belong to contactor soft starter device technology neck
Domain.
Background technology
Within coal mines, electric current during motor across-the-line starting is generally 4~7 times of rated current, if the work(of motor
Rate is smaller, and influence during starting to power network is not very big, and we allow for its across-the-line starting, but for high-power electricity
Machine, if its rated current is 100 peaces, many hundreds peace can be reached in the immediate current of starting, so big electric current is to electricity
The impact of net is very big, can influence normal work of the same power network institute with other loads, during across-the-line starting can also to
Equipment causes certain damage and brings failure.
Explosion-isolated vacuum Soft Start Switch equipment used in China's coal-mine underground at present, wire connection cavity are all an explosion-proof chamber,
End of incoming cables works with leading-out terminal in an explosion-proof chamber, in production process wiring with during maintenance being easy to that accident, and underground occurs
The body cavity of Soft Start Switch easily causes and spark is produced in body cavity, significantly built with disconnecting switch but without independent separate space
The incidence of accident is added, while does not also meet the regulation for forbidding hot line job in safety regulations in coal mine；
In the most Soft Start Switch circuit in underground all only have a vacuum contactor, shut down when, load it is reverse
The possible reverse breakdown silicon controlled component of overvoltage and over-pressed absorption plant, therefore, adding a vacuum contactor in circuit can carry
The safety in utilization of high equipment, and the fault rate of equipment of itself is reduced, a kind of good put down can be also provided for mining motor equipment
Sliding start ambient condition, extend the service life of motor, reduce motor and the rate of breakdown of equipment.
Utility model content
The utility model overcomes the shortcomings of the prior art, and technical problem to be solved is：A kind of multi-cavity type is provided
Every the double vacuum contactor soft starter devices of the multi-cavity type of control, the protection of more contactors.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：A kind of double vacuum contacts of multi-cavity type
Device soft starter device, including wire-incoming chamber, keep apart close cavity, body cavity and wire cavity；Input terminal is provided with the wire-incoming chamber
L1, L2, L3, outlet terminal U, V, W are provided with wire cavity, and disconnecting switch intracavitary is provided with isolation reversing switch K1, body cavity
In be provided with control transformer T1, the first vacuum contactor S1, the second vacuum contactor S2, silicon controlled component and soft startup protection
Device；
Described input terminal L1, L2, L3 are connected with isolating reversing switch K1 end of incoming cables, isolation reversing switch K1 outlet
It is connected after the concatenation silicon controlled component of end with the second vacuum contactor S2 end of incoming cables, the leading-out terminal of the second vacuum contactor S2
Pick out line terminals U, V, W；
The first vacuum contactor S1 is attempted by the both ends of silicon controlled component；
The end of incoming cables of the control transformer T1 is connected with isolating any two-phase of reversing switch K1 leading-out terminals, the control
Transformer T1 provides power supply for soft startup protection device.
The wire-incoming chamber, keep apart between close cavity, body cavity and wire cavity be provided with steel plate cut-off.
The wire-incoming chamber is also equipped with travel switch with the cover plate on wire cavity.
Door closure in the body cavity uses parallel-moving type quick opening mechanism.
The silicon controlled component is also associated with over-pressed absorption plant.
The utility model has an advantageous effect in that compared with prior art：
1st, wire-incoming chamber and wire cavity of the present utility model divide chamber to set, and can avoid that accident occurs when wiring is repaired, will
The independent separate space of disconnecting switch, it can avoid producing spark in body cavity, reduce the incidence of accident, also comply with safety regulations in coal mine
Forbid the regulation of hot line job.
2nd, two vacuum contactors are provided with the utility model body cavity, a contactor is used to complete in soft start
When, bypass silicon controlled component provides reliable operation power supply for load, and another contactor is used to, when shutting down, avoid load
Reverse overvoltage reverse breakdown silicon controlled component and over-pressed absorption plant, prevented also from silicon controlled component and its over-pressed absorption plant
Leakage current flow direction load when shutting down, improve the safety in utilization of equipment.
3rd, the utility model wire-incoming chamber is fitted with travel switch with the cover plate on wire cavity, by detecting cover plate opening
Stroke, it is possible to achieve electric blocking, ensure that power-off is uncapped.
4th, the door closure in soft start body cavity of the present utility model uses parallel-moving type quick opening mechanism, is easy to opening for door closure
Close, and door closure does not sink, and makes to keep shiny surface between door closure and enclosure body, effectively avoids damage caused by possibility, so as to
The sealing and security of switch are ensure that, and improves the service life and production efficiency of Soft Start Switch.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is electrical block diagram of the present utility model；
In figure：1 be wire-incoming chamber, 2 for keep apart close cavity, 3 be body cavity, 4 be wire cavity, 5 be silicon controlled component, 6 be soft
Start protection device, T1 be to control transformer, S1 be the first vacuum contactor, S2 is the second vacuum contactor, L1, L2, L3 be into
Line terminals, U, V, W are outlet terminal.
Embodiment
As shown in Figure 1-2, the double vacuum contactor soft starter devices of a kind of multi-cavity type of the utility model, including wire-incoming chamber 1, every
Leave close cavity 2, body cavity 3 and wire cavity 4；Input terminal L1, L2, L3 are provided with the wire-incoming chamber 1, is set in wire cavity 4
There are outlet terminal U, V, W, keep apart in close cavity 2 and be provided with isolation reversing switch K1, control transformer is provided with body cavity 3
T1, the first vacuum contactor S1, the second vacuum contactor S2, silicon controlled component 5 and soft startup protection device 6；
Described input terminal L1, L2, L3 are connected with isolating reversing switch K1 end of incoming cables, isolation reversing switch K1 outlet
It is connected after the concatenation silicon controlled component 5 of end with the second vacuum contactor S2 end of incoming cables, the outlet of the second vacuum contactor S2
Terminate outlet terminal U, V, W；
The first vacuum contactor S1 is attempted by the both ends of silicon controlled component 5；
The end of incoming cables of the control transformer T1 is connected with isolating any two-phase of reversing switch K1 leading-out terminals, the control
Transformer T1 is that soft startup protection device 6 provides power supply.
The wire-incoming chamber 1, keep apart between close cavity 2, body cavity 3 and wire cavity 4 be provided with steel plate cut-off.
The wire-incoming chamber 1 is also equipped with travel switch with the cover plate on wire cavity 4.
Door closure in the body cavity 3 uses parallel-moving type quick opening mechanism.
The silicon controlled component 5 is also associated with over-pressed absorption plant.
The one of the present utility model feature for being different from common soft starter device, divide chamber for wire-incoming chamber 1 and wire cavity 4
Design, each cavity is fitted with travel switch, meets that power-off is uncapped requirement, it is ensured that safety of workers repair apparatus, individually
Close cavity 2 is kept apart in setting can avoid producing spark in body cavity 3, reduce the incidence of accident.
The utility model is internally provided with two AC vacuum contactors, and the first vacuum contactor S1 is used at soft
Dynamic when completing, bypass silicon controlled component provides reliable operation power supply for load, the second vacuum contactor S2 in shutdown,
The reverse overvoltage reverse breakdown silicon controlled component 5 of load and over-pressed absorption plant are avoided, prevented also from silicon controlled component 5 and mistake
Leakage current flow direction load when shutting down of absorption plant is pressed, improves the safety in utilization of equipment.
Soft startup protection device 6 in the utility model, it is a kind of device for being used for controlling AC asynchronous motor, is a kind of collection
Electric machine soft starting, soft stop, light-load energy saving and multi-protective function in one motor control assembly, soft startup protection device 6
Primary structure, it is made up of, transports the three-phase anti-parallel thyristor and its electronic control circuit that are serially connected between power supply and controlled motor
With different methods, protector controls the angle of flow of three-phase inverse parallel brake tube, makes the input voltage of controlled motor will by different
Ask and change, corresponding function can be achieved；
During starting, motor input voltage is gradually increasing from zero with preset function relation, until proceed-to-send, and by voltage
Maintain to the rated operational voltage of motor, as soft start；During work, soft startup protection device 6 is according to synchronizing signal, current signal
To carry out fuzzy control, pulse output is completed, and carries out short circuit, overload, equal protection of breaking.
Finally it should be noted that：Various embodiments above is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand：It can still modify to the technical scheme described in foregoing embodiments, either to which part or whole
Technical characteristic carries out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (5)
- A kind of 1. double vacuum contactor soft starter devices of multi-cavity type, it is characterised in that：Including wire-incoming chamber（1）, keep apart close cavity （2）, body cavity（3）With wire cavity（4）；The wire-incoming chamber（1）In be provided with input terminal L1, L2, L3, wire cavity（4）In set Outlet terminal U, V, W are equipped with, keeps apart close cavity（2）Inside it is provided with isolation reversing switch K1, body cavity（3）In be provided with control become Depressor T1, the first vacuum contactor S1, the second vacuum contactor S2, silicon controlled component（5）With soft startup protection device（6）；Described input terminal L1, L2, L3 are connected with isolating reversing switch K1 end of incoming cables, isolation reversing switch K1 leading-out terminal string Connect silicon controlled component（5）The end of incoming cables with the second vacuum contactor S2 is connected afterwards, the leading-out terminal of the second vacuum contactor S2 Pick out line terminals U, V, W；The first vacuum contactor S1 is attempted by silicon controlled component（5）Both ends；The end of incoming cables of the control transformer T1 is connected with isolating any two-phase of reversing switch K1 leading-out terminals, the control transformation Device T1 is soft startup protection device（6）Power supply is provided.
- A kind of 2. double vacuum contactor soft starter devices of multi-cavity type according to claim 1, it is characterised in that：The inlet wire Chamber（1）, keep apart close cavity（2）, body cavity（3）With wire cavity（4）Between be provided with steel plate cut-off.
- A kind of 3. double vacuum contactor soft starter devices of multi-cavity type according to claim 2, it is characterised in that：The inlet wire Chamber（1）With wire cavity（4）On cover plate be also equipped with travel switch.
- A kind of 4. double vacuum contactor soft starter devices of multi-cavity type according to claim 3, it is characterised in that：The body Chamber（3）On door closure use parallel-moving type quick opening mechanism.
- A kind of 5. double vacuum contactor soft starter devices of multi-cavity type according to claim 1, it is characterised in that：It is described controllable Silicon component（5）It is also associated with over-pressed absorption plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775236.1U CN206865380U (en) | 2017-06-29 | 2017-06-29 | A kind of double vacuum contactor soft starter devices of multi-cavity type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720775236.1U CN206865380U (en) | 2017-06-29 | 2017-06-29 | A kind of double vacuum contactor soft starter devices of multi-cavity type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206865380U true CN206865380U (en) | 2018-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720775236.1U Active CN206865380U (en) | 2017-06-29 | 2017-06-29 | A kind of double vacuum contactor soft starter devices of multi-cavity type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206865380U (en) |
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2017
- 2017-06-29 CN CN201720775236.1U patent/CN206865380U/en active Active
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