CN104020362B - three-phase load debugging control circuit - Google Patents
three-phase load debugging control circuit Download PDFInfo
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- CN104020362B CN104020362B CN201310065990.2A CN201310065990A CN104020362B CN 104020362 B CN104020362 B CN 104020362B CN 201310065990 A CN201310065990 A CN 201310065990A CN 104020362 B CN104020362 B CN 104020362B
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- threephase
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- 238000000819 phase cycle Methods 0.000 claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000001681 protective effect Effects 0.000 claims description 16
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
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Abstract
The invention discloses a three-phase load debugging control circuit, which comprises an electric control board, a three-phase switch device, a selection switch and a manual switch, wherein the electric control board is connected with the three-phase switch device; the electric control board is powered by a first phase line and a zero line of a power supply, and is electrically connected with the three-phase switching device; the three-phase load is electrically connected to a power supply through a three-phase switching device; the first terminal of the selection switch is electrically connected to the control port of the electric control board, the second terminal of the selection switch is electrically connected to the first phase line or the control port of the electric control board in series with the manual switch, and the common terminal of the selection switch is electrically connected to the three-phase switching device; the electric control board automatically controls the on-off of the three-phase switch device or the manual switch controls the on-off of the three-phase switch device or the electric control board and the manual switch control the on-off of the three-phase switch device. The problem that in engineering, when the phase sequence of a three-phase load (such as a fan, a compressor and a water pump) is detected, a contact button of a contactor needs to be manually pressed all the time to detect is solved, the service life of the contactor is prolonged, and the safety factor of an operator is improved.
Description
Technical field
The present invention relates to automation field, more particularly to a kind of Debug control circuitry of threephase load.
Background technology
At present great majority often install phase sequence relay using the equipment of three phase mains, and for example, air-conditioner set is by phase
Sequence protector disconnects the power line of mainboard detecting the phase sequence of power line during power line wrong phase sequence, mainboard do not work so that
All load no powers such as compressor, the blower fan of air-conditioner set, but to the phase sequence wiring correctness of the threephase loads such as electric machinery
Do not protect accordingly, even if the wiring of power line phase sequence is correct, do not ensure that the phase sequence wiring of compressor, motor even load
Correctly, the threephase loads such as compressor, motor and the water pump installed particularly in engineering, due to project installation, personnel are uneven,
It is likely to that the phase sequence of three phase electric machine is reversed so that motor reversal, affects the normal work of unit or even burn out in installation process
Motor.It is electric testing that project installation personnel can only force motor to obtain by the artificial contact button for pinning A.C. contactor always
Whether the phase sequence of motor is correct, so not only makes the contact of A.C. contactor because contact not exclusively damages A.C. contactor, together
When installation personnel there is also the danger of electric shock, particularly high-power motor is dangerous higher.
The content of the invention
In order to overcome the deficiencies in the prior art, the present invention to provide a kind of simple structure, threephase load debugging reasonable in design
Control circuit, its debugging is convenient, completely reliable.The present invention realizes that the technical scheme that above-mentioned purpose is adopted is：
A kind of threephase load Debug control circuitry, including electric-controlled plate, also including threephase switch device, selecting switch and manually
Switch；
The electric-controlled plate is powered by first phase line and zero line of power supply, and the electric-controlled plate is electrically connected with the threephase switch device
Connect；
The threephase load is electrically connected to the power supply by the threephase switch device；
First terminals of the selecting switch are electrically connected to the control port of the electric-controlled plate, the second terminals series connection institute
The control port that hand switch is electrically connected to first phase line or the electric-controlled plate is stated, common terminal electrically connects the three-phase
Switching device；
When the common terminal and the first terminals are connected, the electric-controlled plate automatically controls the threephase switch device
Break-make；
When the common terminal and the second terminals are connected, the hand switch controls the logical of the threephase switch device
The disconnected or electric-controlled plate and hand switch control the break-make of the threephase switch device.
More preferably, the threephase load is multiple, and multiple threephase loads are in parallel to access the power supply, and each described three
Phase load is equipped with a threephase switch device and a hand switch.
More preferably, the first terminals of the selecting switch include multiple first contacts, and the second terminals include multiple the
Two contacts, common terminal includes multiple 3rd contacts；
When the common terminal is connected with the first terminals, the plurality of 3rd contact is corresponding with multiple first contacts electric
Connection；
When the common terminal is connected with the second terminals, the plurality of 3rd contact is corresponding with multiple second contacts electric
Connection.
More preferably, the control circuit also include phase sequence protective device of computer, the phase sequence protective device of computer respectively with the power supply
The first phase line, the second phase line and third phase line electrical connection, for detecting the phase sequence of the power supply；
The electric-controlled plate is electrically connected by the phase sequence protective device of computer with first phase line, and the phase sequence protective device of computer exists
The phase sequence that it is detected makes the electric-controlled plate connect the power supply when consistent with default phase sequence.
More preferably, the threephase switch device is A.C. contactor or relay.
More preferably, the control circuit also includes indicator lamp, and the indicator lamp is in parallel with the threephase switch device, in institute
State indicator lamp when threephase switch device is turned on to be lit.
More preferably, the hand switch is rotary switch, button switch or toggle switch.
More preferably, the control circuit also includes electrothermal relay, and the electrothermal relay is connected in series with threephase switch device
To the three phase electric machine.
More preferably, the control circuit also includes overcurrent protective device, and the overcurrent protective device is connected on electric-controlled plate
In first phase line.
More preferably, the control circuit also includes disconnecting switch, and the disconnecting switch is connected in the power supply, for controlling
Make the break-make of the power supply.
The invention has the beneficial effects as follows：
The threephase load Debug control circuitry of the present invention is solved in engineering to threephase load (such as blower fan, compressor and water
Pump) the phase sequence problem that needs when testing artificially to pin the contact switch of contactor always and test, improve
The service life of contactor and the safety coefficient of operating personnel are effective between realizing unit automatic running and running manually
Switching, when AutoPlay function during automatic running fails, related personnel can also allow machine to unit using manual function
Group maintains operation, so as to ensure the normal work of unit.
Description of the drawings
Fig. 1 is the embodiment schematic diagram of threephase load Debug control circuitry one of the present invention.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples pair
The threephase load Debug control circuitry of the present invention is further elaborated.It should be appreciated that described herein be embodied as
Example is not intended to limit the present invention only to explain the present invention.
With reference to Fig. 1, the embodiment of threephase load Debug control circuitry one of the present invention is connected in power supply, and power supply includes first
Phase line L1, the second phase line L2, third phase line L3 and zero line N, by disconnecting switch 27 ' break-make of power supply, threephase load debugging are controlled
Control circuit includes electric-controlled plate (not shown), threephase load, phase sequence protective device of computer 19 ', hand switch and selecting switch 17 ', phase
The first phase line L1 respectively with power supply of sequence protection device 19 ', the second phase line L2 and third phase line L3 are electrically connected, for detecting power supply
Phase sequence；
Selecting switch 17 ' can be rotary switch, button switch or toggle switch for SAC switching switches, hand switch.
Electric-controlled plate is powered by first phase line L1 and zero line N of power supply, and the phase voltage of electric-controlled plate is 220V, and electric-controlled plate passes through phase
Sequence protection device 19 ' is electrically connected with the first phase line L1, and phase sequence protective device of computer 19 ' is consistent with default phase sequence in the phase sequence that it is detected
When make electric-controlled plate connect the power supply；When the phase sequence that phase sequence protective device of computer 19 ' is detected is inconsistent with default phase sequence, electric-controlled plate is not
Obtain electric so as to work；Preferably, overcurrent protective device 20 ', mistake are set in the circuit that the first phase line L1 is connected in electric-controlled plate
Stream protection device 20 ' is current-limiting resistance.
Threephase load is one or more in compressor, blower fan or water pump, and the quantity of threephase load can be one,
Can be multiple, for example, the three phase electric machine quantity in Fig. 1 is six, respectively the first three phase electric machine 11 ', the second three phase electric machine
12 ', the 3rd three phase electric machine 13 ', the 4th three phase electric machine 14 ', the 5th three phase electric machine 15 ' and the 6th three phase electric machine 16 ', the above each three
Phase motor parallel accesses power supply, wherein, threephase switch device is set on each three phase electric machine, threephase switch device is ac contactor
Device or relay, series connection the first A.C. contactor 1 ' of the first three phase electric machine 11 ' accesses power supply, the series connection of the second three phase electric machine 12 ' the
Two A.C. contactor 2 ' accesses power supply, and series connection three A.C. contactor 3 ' of three three phase electric machine 13 ' accesses power supply, the 4th three-phase electricity
Series connection four A.C. contactor 4 ' of machine 14 ' accesses power supply, and series connection five A.C. contactor 5 ' of five three phase electric machine 15 ' accesses electricity
Source, series connection six A.C. contactor 6 ' of six three phase electric machine 16 ' access power supply.Preferably, each three phase electric machine of the above is also each gone here and there
Connection electrothermal relay, electrothermal relay is connected to three phase electric machine after connecting with threephase switch device.For example, three three phase electric machine 13 ' is gone here and there
Join the first electrothermal relay 7 ', the second electrothermal relay 8 ' of series connection of four three phase electric machine 14 ', the series connection the 3rd of five three phase electric machine 15 ' is hot
Relay 9 ', the 4th electrothermal relay 10 ' of series connection of six three phase electric machine 16 ', so as to carry out further protection to three phase electric machine.
First terminals of selecting switch 17 ' include multiple first contacts, and the second terminals include multiple second contacts, public
Altogether terminals include multiple 3rd contacts；
17 ' first terminals of selecting switch are electrically connected to the control port of the electric-controlled plate, the second terminals series connection institute
State the control port that hand switch is electrically connected to the first phase line L1 or the electric-controlled plate, common terminal electrical connection threephase switch dress
Put；
When common terminal and the first terminals are connected, on multiple 3rd contacts on common terminal and the first terminals
Multiple first contacts correspondence electrically connect, the electric-controlled plate automatically controls the break-make of the threephase switch device；
When common terminal and the second terminals are connected, multiple the on multiple 3rd contacts on common port and the second end
Two contacts correspondence is electrically connected, and the hand switch controls the break-make or the electric-controlled plate of the threephase switch device and opens manually
Close the break-make of the control threephase switch device.
More preferably, as a kind of embodiment, the first terminated line of selecting switch 17 ' is by the connection electricity of terminal board 18 '
The control port of control plate, the first contact 2,6,10,14,18,22 on the first terminals of selecting switch 17 ' is connected respectively
Electric-controlled plate 220V control signal wires one, electric-controlled plate 220V control signal wires two, electric-controlled plate 220V control signal wires three, electric-controlled plate
220V control signal wires four, electric-controlled plate 220V control signal wires five, electric-controlled plate 220V control signal wires six, selecting switch 17 '
The second contact 4,8,12,16,20,24 on second terminals connect respectively the first rotary switch 31 ', the second rotary switch 32 ',
3rd rotary switch 33 ', the 4th rotary switch 34 ', the 5th rotary switch 35 ' and the 6th rotary switch 36 ' are connected to electric-controlled plate
On the first phase line L1, the 3rd contact 1,5,9,13,17,21 or 3 on the common terminal of selecting switch 17 ', 7,11,15,
19th, 23 connect respectively the coil of the first A.C. contactor 1 ', the coil of the second A.C. contactor 2 ', the 3rd A.C. contactor 3 '
Coil, the coil of the 4th A.C. contactor 4 ', the coil of the 5th A.C. contactor 5 ', the coil of the 6th A.C. contactor 6 '；With
The other end connection zero line N of upper each ac contactor coil.
When the common terminal of selecting switch 17 ' is connected with its first terminals, on the first terminals of selecting switch 17 '
The first contact 2,6,10,14,18,22 respectively with the 3rd contact 1 on common terminal, 5,9,13,17,21 it is corresponding connect,
Electric-controlled plate automatically controls the break-make of each A.C. contactor；
When the common terminal of selecting switch 17 ' is connected with its second terminals, on the second terminals of selecting switch 17 '
The second contact 4,8,12,16,20,24 respectively with the 3rd contact 1 on common terminal, 5,9,13,17,21 it is corresponding connect,
Now, the first rotary switch 31 ' controls the break-make of the first ac contactor 1 ', and the second rotary switch 32 ' controls the second ac contactor
The break-make of device 2 ', three rotary switch 33 ' controls the break-make of the 3rd A.C. contactor 3 ', the control of four rotary switch 34 ' the 4th
The break-make of A.C. contactor 4 ', five rotary switch 35 ' controls the break-make of the 5th A.C. contactor 5 ', the 6th rotary switch 36 '
Control the break-make of the 6th A.C. contactor 6 '；
Using this kind of control mode, when electric-controlled plate breaks down, remain to be switched to each three phase electric machine of manual mode maintenance
Operating.
More preferably, as another kind of embodiment, different from above-mentioned embodiment are：The of selecting switch 17 '
The second contact 4,8,12,16,20,24 on two terminals connect respectively the first rotary switch 31 ', the second rotary switch 32 ',
Three rotary switches 33 ', the 4th rotary switch 34 ', the 5th rotary switch 35 ' and six rotary switch 36 ' correspondence connection electric-controlled plate
220V control signal wires one, electric-controlled plate 220V control signal wires two, the control of electric-controlled plate 220V control signal wires three, electric-controlled plate 220V
Holding wire four, electric-controlled plate 220V control signal wires five, electric-controlled plate 220V control signal wires six；
When the common terminal and the first terminals are connected, the first contact on the first terminals of selecting switch 17 '
2nd, 6,10,14,18,22 respectively with the 3rd contact 1 on common terminal, 5,9,13,17,21 it is corresponding connect, electric-controlled plate is automatic
Control the break-make of each A.C. contactor；
When the common terminal and the second terminals are connected, the second contact on the second terminals of selecting switch 17 '
4th, 8,12,16,20,24 respectively with the 3rd contact 1 on common terminal, 5,9,13,17,21 it is corresponding connect, electric-controlled plate and each
The break-make of each A.C. contactor of rotary switch co- controlling.
Using this kind of mode, when three phase electric machine breaks down, faulty motor is detected or more by not shutting down group
Change.
More preferably, as another embodiment, the indicator lamp 21 ' of coils from parallel connection of coils first of the first A.C. contactor 1 ',
The indicator lamp 22 ' of coils from parallel connection of coils second of two A.C. contactors 2 ', the indicator lamp of coils from parallel connection of coils the 3rd of the 3rd A.C. contactor 3 '
The indicator lamp 24 ' of coils from parallel connection of coils the 4th, the coils from parallel connection of coils the five fingers of the 5th A.C. contactor 5 ' of the 23 ', the 4th A.C. contactor 4 '
Show the indicator lamp 26 ' of coils from parallel connection of coils the 6th of lamp 25 ', the 6th A.C. contactor 6 '；When A.C. contactor is turned on, the finger of its parallel connection
Show that lamp is lit；The setting of indicator lamp, is easy to observe the start-stop of threephase load, convenient operation.
Threephase load Debug control circuitry in above example is solved in engineering to threephase load (such as blower fan, compression
Machine and water pump) the phase sequence problem that needs when testing artificially to pin the contact button of contactor always and test,
Manually control can detect whether the phase sequence of corresponding threephase load is correct by platform, when checking out all of threephase load phase
Sequence switches to automatic control circuit and makes unit automatic running after completing correctly, realizes unit automatic running and runs it manually
Between effective switching, unit during automatic running AutoPlay function fail when, still make unit using manual function
Operation is maintained, when threephase load is broken down, load fault is detected or is changed by not shutting down group, so as to ensure machine
The normal work of group, also improves the service life of contactor and the safety coefficient of operating personnel.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope.Therefore, the protection domain of patent of the present invention should be defined by claims.
Claims (9)
1. a kind of threephase load Debug control circuitry, including electric-controlled plate, it is characterised in that：
Also include threephase switch device, selecting switch and hand switch；
The electric-controlled plate is powered by first phase line and zero line of power supply, and the electric-controlled plate is electrically connected with the threephase switch device；
The threephase load is electrically connected to the power supply by the threephase switch device；
First terminals of the selecting switch are electrically connected to the control port of the electric-controlled plate, the second terminals series connection hand
Dynamic switch is electrically connected to the control port of first phase line or the electric-controlled plate, and common terminal electrically connects the threephase switch
Device；
The threephase load is multiple, and multiple threephase loads are in parallel to access the power supply, and each described threephase load is equipped with
One threephase switch device and a hand switch；
When the common terminal and the first terminals are connected, the electric-controlled plate automatically controls all threephase switch devices
Break-make；
When the common terminal and the second terminals are connected, a hand switch controls a threephase switch device
Break-make；
The threephase load includes the one or more kinds of combinations in compressor, blower fan and water pump.
2. threephase load Debug control circuitry according to claim 1, it is characterised in that：
First terminals of the selecting switch include multiple first contacts, and the second terminals include multiple second contacts, public
Terminals include multiple 3rd contacts；
When the common terminal is connected with the first terminals, the plurality of 3rd contact is corresponding with multiple first contacts to be electrically connected
Connect；
When the common terminal is connected with the second terminals, the plurality of 3rd contact is corresponding with multiple second contacts to be electrically connected
Connect.
3. threephase load Debug control circuitry according to claim 1, it is characterised in that：
Also include phase sequence protective device of computer, the phase sequence protective device of computer the first phase line respectively with the power supply, the second phase line and the
Triple line is electrically connected, for detecting the phase sequence of the power supply；
The electric-controlled plate is electrically connected by the phase sequence protective device of computer with first phase line, and the phase sequence protective device of computer is examined at it
The phase sequence for measuring makes the electric-controlled plate connect the power supply when consistent with default phase sequence.
4. the threephase load Debug control circuitry according to any one of claim 1-3, it is characterised in that：
The threephase switch device is A.C. contactor or relay.
5. the threephase load Debug control circuitry according to any one of claim 1-3, it is characterised in that：
Also include indicator lamp, the indicator lamp is in parallel with the threephase switch device, in threephase switch device conducting when institute
State indicator lamp to be lit.
6. the threephase load Debug control circuitry according to any one of claim 1-3, it is characterised in that：
The hand switch is rotary switch, button switch or toggle switch.
7. the threephase load Debug control circuitry according to any one of claim 1-3, it is characterised in that：
Also include electrothermal relay, the electrothermal relay is connected to the three phase electric machine with threephase switch device.
8. threephase load Debug control circuitry according to claim 7, it is characterised in that：
Also include overcurrent protective device, the overcurrent protective device is connected in first phase line with electric-controlled plate.
9. threephase load Debug control circuitry according to claim 8, it is characterised in that：
Also include disconnecting switch, the disconnecting switch is connected in the power supply, for controlling the break-make of the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065990.2A CN104020362B (en) | 2013-03-01 | 2013-03-01 | three-phase load debugging control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065990.2A CN104020362B (en) | 2013-03-01 | 2013-03-01 | three-phase load debugging control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104020362A CN104020362A (en) | 2014-09-03 |
| CN104020362B true CN104020362B (en) | 2017-04-12 |
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ID=51437223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310065990.2A Expired - Fee Related CN104020362B (en) | 2013-03-01 | 2013-03-01 | three-phase load debugging control circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN104020362B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106598128B (en) * | 2016-11-22 | 2018-07-27 | 辽宁东鹰航空装备科技股份有限公司 | Electric cabinet experiment connection circuit |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08289466A (en) * | 1995-04-17 | 1996-11-01 | Sanyo Electric Co Ltd | Erroneous wiring detector for power supply |
| JP3576680B2 (en) * | 1996-02-20 | 2004-10-13 | 九州電力株式会社 | Phase detector for uninterruptible power supply |
| CN1888921B (en) * | 2006-07-13 | 2010-05-12 | 江苏省电力公司苏州供电公司 | Intelligent nuclear phase meter |
| CN101872960A (en) * | 2010-06-01 | 2010-10-27 | 佛山市中格威电子有限公司 | Phase sequence detection and adjustment method and circuit |
| CN101871981B (en) * | 2010-06-01 | 2012-05-09 | 佛山市中格威电子有限公司 | Automatic detection and regulation method and circuit for air conditioner |
| CN201788236U (en) * | 2010-08-18 | 2011-04-06 | 青岛港（集团）有限公司 | Special detection device of sliding contact power supply dolly |
| CN202424125U (en) * | 2012-01-19 | 2012-09-05 | 杨霜 | Phase sequence regulator for three-phase power supply |
| CN203117305U (en) * | 2013-03-01 | 2013-08-07 | 珠海格力电器股份有限公司 | three-phase load debugging control circuit |
-
2013
- 2013-03-01 CN CN201310065990.2A patent/CN104020362B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN104020362A (en) | 2014-09-03 |
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Granted publication date: 20170412 |