CN205792332U - Air compressor alternating current power supply phase sequence automaton - Google Patents
Air compressor alternating current power supply phase sequence automaton Download PDFInfo
- Publication number
- CN205792332U CN205792332U CN201620615707.8U CN201620615707U CN205792332U CN 205792332 U CN205792332 U CN 205792332U CN 201620615707 U CN201620615707 U CN 201620615707U CN 205792332 U CN205792332 U CN 205792332U
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- contactor
- phase sequence
- alternating current
- power supply
- air compressor
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- 238000000819 phase cycle Methods 0.000 title claims abstract description 51
- 239000003054 catalyst Substances 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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Abstract
The utility model discloses a kind of air compressor alternating current power supply phase sequence automaton, mainly include phase sequence relay, the A.C. contactor of interlocking and peripheral circuit.Input AC electricity compares through phase sequence relay, export one control signal to A.C. contactor, if phase sequence is correctly, then the first A.C. contactor adhesive, the second A.C. contactor are failure to actuate；If phase sequence mistake, then the first A.C. contactor be failure to actuate, the second A.C. contactor adhesive, thus ensure that output AC phase sequence is the most correct.Two A.C. contactors use interlock mode, it is ensured that the same time only has an A.C. contactor adhesive, does not haves power supply short circuit.
Description
Technical field
This utility model belongs to air compressor field, is specifically related to a kind of air compressor alternating current power supply phase sequence and automatically controls
Device processed.
Background technology
High power air compressor has relatively broad application in national defence, and these high power air compressors belong to
Electrical equipment, uses three-phase alternating-current supply as driving.Qualified the setting of debugging of dispatching from the factory often occurs during equipment uses
For using unit normally not launch, a chief reason inputs 380V High Level AC Voltage phase sequence exactly and does not mates.Equipment
The correct equipment of input power phase sequence is necessarily required normally to start, if otherwise phase sequence mistake, motor reversal can directly damage sky
Air compressor, causes heavy losses.Work runs into this situation, needs professional's execute-in-place to change input high-voltage alternating
Electricity phase sequence, brings very big inconvenience and potential safety hazard to the use of equipment.
The air compressor that at present army's equipment in use is supporting, the most each equipment be required to adjust in time when using and
Change phase sequence, continually start and stop powerful device, add the fault rate of equipment, reduces the service life of equipment, the most also
Stablizing of power supply circuits can be affected continually.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of air compressor alternating current power supply phase sequence and automatically controls dress
Put.
For solving the problems referred to above, the technical solution adopted in the utility model is as follows:
A kind of air compressor alternating current power supply phase sequence automaton, including phase sequence relay, the first A.C. contactor,
Second A.C. contactor；Three contacts of described phase sequence relay connect the three-phase of alternating current respectively, phase sequence relay normally opened
The coils connected in series of contact and the first A.C. contactor also controls the normally opened auxiliary contact of the first A.C. contactor, phase sequence relay
Normally-closed contact and the coils connected in series of the second A.C. contactor also control the normally opened auxiliary contact of the second A.C. contactor；
Described first A.C. contactor, the second A.C. contactor interlocking connection；
After described first A.C. contactor, the second ac contactor coil place loop parallel connection, two ends, loop connect exchange
Electric is the most biphase；
Described first A.C. contactor and the main contact parallel of the second A.C. contactor, the main contacts of two A.C. contactors
Input accesses alternating current after phase sequence relay, and the input order of connection is identical；The main contacts of two A.C. contactors is defeated
Go out end and connect load, and output end wiring order is contrary.
Further, described first A.C. contactor, the second A.C. contactor interlock mode are: the first A.C. contactor
The normally closed auxiliary contact series connection of coil and the second A.C. contactor, the coil of the second A.C. contactor and the first A.C. contactor
Normally closed auxiliary contact is connected.
Further, install electrically before the main contacts of described first A.C. contactor and the main contacts of the second A.C. contactor
Switch.
The beneficial effects of the utility model are as follows:
This utility model air compressor alternating current power supply phase sequence automaton, it is achieved that do not having human intervention situation
Under, how outside input 380V alternating current power supply phase sequence changes, and equipment all can run well, and preferably solves army and exists
Problem during equipment use.Do not affect service life of equipment, do not increase the cost that professional intervenes.
Two A.C. contactors of this utility model use interlock mode, it is ensured that the same time only has an A.C. contactor to inhale
Close, do not have power supply short circuit.
This utility model can promote the use of the Large Electric machinery construction fields such as mine, bridge, culvert.
Accompanying drawing explanation
Fig. 1 is this utility model air compressor alternating current power supply phase sequence automaton structural representation.
Detailed description of the invention
Problem is automatically controlled, employing below scheme in order to solve air compressor alternating current power supply phase sequence:
This utility model air compressor alternating current power supply phase sequence automaton is connected on air compressor alternating current power supply
In electric loop, including 1 phase sequence relay, 2 A.C. contactors and peripheral circuit, control 2 mutually with phase sequence relay
The A.C. contactor of lock realizes automatically controlling of phase sequence.Phase sequence relay uses voltage sampling mode, it is not necessary to carry out any electric current
The adjustment of grade.Phase sequence relay can interpolate that alternating current phase sequence is the most correct, it addition, at the main electricity of ac three-phase asynchronous motor
When the abnormal condition of disconnected phase, Voltage unbalance occurs in road, electrical contact, fast and reliable ground protection motor can be disconnected in time.
As it is shown in figure 1, the three-phase alternating current of external input device (380V) L1, L2, L3 receive the first of phase sequence relay
On contact 3, the 1, second contact the 2, the 3rd, contact, the coil string of phase sequence relay normally opened contact the 5,6 and first A.C. contactor KM1
Join and control the normally opened auxiliary contact of the first A.C. contactor KM1, normally-closed contact 7,8 and second ac contactor of phase sequence relay
The coils connected in series of device KM2 also controls the normally opened auxiliary contact of the second A.C. contactor KM2.
Described first, second A.C. contactor interlocking connection, the coil of the first A.C. contactor KM1, normally opened auxiliary contact
Connect with the normally closed auxiliary contact of the second A.C. contactor KM2, the coil of the second A.C. contactor KM2, normally opened auxiliary contact with
The normally closed auxiliary contact series connection of the first A.C. contactor KM1.Described first, second loop, ac contactor coil place is in parallel
After, two ends, loop connect the most biphase of alternating current；Wire loop is used for performing control instruction.
The main contacts of described first A.C. contactor KM1 and the main contact parallel of the second A.C. contactor KM2, two exchanges
The main contacts input of catalyst accesses alternating current after phase sequence relay, and the order of connection is L1, L2, L3；Two exchanges connect
The main contacts outfan of tentaculum connects load, and the main contacts output end wiring order of the first A.C. contactor is L1, L2, L3, the
Two A.C. contactor KM2 main contacts output end wiring orders are L3, L2, L1.A.C. contactor main contacts is used for opening and closing circuit.?
Switch K can also be installed before main contacts and control the contactor of alternating current.
The auxiliary contact of A.C. contactor have a characteristic that in the case of A.C. contactor does not work, normally opened
Auxiliary contact are open circuit, and normally closed auxiliary contact is Guan Bi；When A.C. contactor works, normally closed auxiliary contact first disconnects, normally opened
Auxiliary contact are closed again；When A.C. contactor power-off, normally opened auxiliary contact first disconnect, normally closed auxiliary contact just closed reduction.
For two A.C. contactors of interlocking, when the first A.C. contactor KM1 coil obtains electric, the first A.C. contactor
KM1 normally closed auxiliary contact first disconnects, the first A.C. contactor KM1 normally opened auxiliary contact Guan Bi.And the first A.C. contactor KM1 is normal
Closing the wire loop series connection of auxiliary contact and the second A.C. contactor KM2, therefore the second A.C. contactor KM2 does not works.Otherwise
When the second A.C. contactor KM2 coil obtains electric, the second A.C. contactor KM2 normally closed auxiliary contact first disconnects, and the second exchange connects
The normally opened auxiliary contact of tentaculum KM2 close.And the second A.C. contactor KM2 normally closed auxiliary contact and the first A.C. contactor KM1
Wire loop is connected, and therefore the first A.C. contactor KM1 does not works.The A.C. contactor of two such interlocking, in the same time
Only one of which works, it is ensured that alternate do not have short circuit.Certain two A.C. contactors can also use mechanical interlocked mode.
This utility model air compressor alternating current power supply phase sequence automaton operation principle is as follows:
If three-phase alternating current L1, L2, L3 phase sequence of input phase sequence relay is correct, then phase sequence relay normally-closed contact 7,
8 disconnect, normally opened contact 5,6 adhesive, and the first A.C. contactor KM1 coil obtains electric adhesive, the second A.C. contactor KM2 release, defeated
Entering to load phase order of 3-phase AC is L1, L2, L3.If three-phase alternating current L1, L2, L3 phase sequence of input phase sequence relay is wrong
By mistake, then phase sequence relay normally opened contact 5,6 disconnects, and normally-closed contact 7,8 closes, the second A.C. contactor KM2 coil obtain electric adhesive,
First A.C. contactor KM1 release, input load phase order of 3-phase AC is L3, L2, L1；This ensures that there outside defeated
Entering how power phase changes, motor all can run well.
Above in conjunction with accompanying drawing, embodiment of the present utility model is explained in detail, but this utility model is not limited to
Above-mentioned embodiment, in the ken that one skilled in the relevant art is possessed, makes without departing from present inventive concept
Various changes, still fall in protection scope of the present invention.
Claims (3)
1. an air compressor alternating current power supply phase sequence automaton, it is characterised in that include phase sequence relay, the first friendship
Stream catalyst, the second A.C. contactor；Three contacts of described phase sequence relay connect the three-phase of alternating current, phase sequence relay respectively
The normally opened contact of device and the coils connected in series of the first A.C. contactor also control the normally opened auxiliary contact of the first A.C. contactor, phase sequence
The normally-closed contact of relay and the coils connected in series of the second A.C. contactor also control the normally opened auxiliary contact of the second A.C. contactor；
Described first A.C. contactor, the second A.C. contactor interlocking connection；
After described first A.C. contactor, the second ac contactor coil place loop parallel connection, two ends, loop connect alternating current
The most biphase；
Described first A.C. contactor and the main contact parallel of the second A.C. contactor, the main contacts input of two A.C. contactors
End accesses alternating current after phase sequence relay, and the input order of connection is identical；The main contacts outfan of two A.C. contactors
Connect load, and output end wiring order is contrary.
2. air compressor alternating current power supply phase sequence automaton as claimed in claim 1, it is characterised in that described first
A.C. contactor, the second A.C. contactor interlock mode be: the coil of the first A.C. contactor and the second A.C. contactor normal
Close auxiliary contact series connection, the coil of the second A.C. contactor and the normally closed auxiliary contact series connection of the first A.C. contactor.
3. air compressor alternating current power supply phase sequence automaton as claimed in claim 1 or 2, it is characterised in that described
Electric switch is installed before the main contacts of the first A.C. contactor and the main contacts of the second A.C. contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615707.8U CN205792332U (en) | 2016-06-22 | 2016-06-22 | Air compressor alternating current power supply phase sequence automaton |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620615707.8U CN205792332U (en) | 2016-06-22 | 2016-06-22 | Air compressor alternating current power supply phase sequence automaton |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205792332U true CN205792332U (en) | 2016-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620615707.8U Active CN205792332U (en) | 2016-06-22 | 2016-06-22 | Air compressor alternating current power supply phase sequence automaton |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205792332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932927A (en) * | 2016-06-22 | 2016-09-07 | 中国人民解放军95989部队 | Automatic control device for AC power phase sequence of air compressor |
-
2016
- 2016-06-22 CN CN201620615707.8U patent/CN205792332U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105932927A (en) * | 2016-06-22 | 2016-09-07 | 中国人民解放军95989部队 | Automatic control device for AC power phase sequence of air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Gao Junwei Document name: Notice of Termination of Patent Rights |
|
| DD01 | Delivery of document by public notice |