CN205509900U - A device that be used for dragging two control three phase ac asynchronous motor - Google Patents
A device that be used for dragging two control three phase ac asynchronous motor Download PDFInfo
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- CN205509900U CN205509900U CN201620202178.9U CN201620202178U CN205509900U CN 205509900 U CN205509900 U CN 205509900U CN 201620202178 U CN201620202178 U CN 201620202178U CN 205509900 U CN205509900 U CN 205509900U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model discloses a device that be used for dragging two control three phase ac asynchronous motor, include major loop circuit, control circuit, control box and install the converter cabinet in the electromagnetism is stood and switch over the cabinet that the major loop circuit is including installing converter, input reactance ware, the output reactance ware in frequency transforming cabinet and installing circuit breaker, major loop fuse, an ac contactor, the 2nd ac contactor, power frequency control ac contactor, a frequency conversion control ac contactor and the 2nd frequency conversion control ac contactor in switching over the cabinet. The utility model discloses with a converter just can realize to two three phase ac asynchronous motor power frequencies control, stop, manual frequency conversion control and PLC control, reduced the quantity of converter, can realize centralized control and control, required operating personnel is few, has reduced operating personnel's the amount of labour, failure diagnosis simple and clear, electric maintenance and maintenance convenience, the saving cost, the flexible operation has improved the productivity ratio of enterprise.
Description
Technical field
This utility model belongs to motor automation and controls technical field, is specifically related to a kind of device controlling three-phase AC asynchronous motor for one drag two.
Background technology
Based on pulp conveying in the production technologies such as ore dressing in metallurgy industry, copper choosing, the equipment of employing is a low-pressure electric cabinet, a control box, a three-phase AC asynchronous motor and a pump composition；This control mode control box and low-pressure electric cabinet install than relatively decentralized, simple power frequency startup can only be carried out, stop operation.The links such as ore dressing in metallurgy industry, copper are selected production technology to be mining, screening, ore grinding, classification, sorted, concentration, wherein pulp conveying is main production process, break down due to certain controlling unit during pulp conveying, ore pulp causes long-pending full ore deposit, pump hole by emitting outside mine-separating box, causes motor V-belt contact water to make belt pulley skid and cause productivity accident and mineral to run off.Especially complicated in technological process, the production place that production capacity is big, operator are few and equipment is many uses control mode one to one, operates single, causes the wasting of resources and cost to increase, is unfavorable for the raising of enterprise productivity.
Utility model content
The purpose of this utility model is the technical problem in order to solve control mode one to one in prior art, it is provided that a kind of realize controlling two three-phase AC asynchronous motor industrial frequency controls, stopping, manual VFC and PLC and low cost, the easy to maintenance device controlling three-phase AC asynchronous motor for one drag two with converter.
nullIn order to achieve the above object，This utility model is by the following technical solutions: a kind of device controlling three-phase AC asynchronous motor for one drag two，Including main loop circuit、Control circuit、Control box and the frequency-charger cabinet that is arranged in electromagnetism station and switching cabinet，Described main loop circuit includes the converter being arranged in frequency conversion tank、Input reactance device、Output reactance device and be arranged on switching cabinet in chopper、Major loop fuse、First A.C. contactor、Second A.C. contactor、Industrial frequency control A.C. contactor、First VFC A.C. contactor and the second VFC A.C. contactor、Thermorelay，One end of described chopper is connected with AC power cord，Other end main contacts with industrial frequency control A.C. contactor and the first VFC A.C. contactor respectively is connected，The described main contacts of industrial frequency control A.C. contactor is connected with the main contacts of thermorelay，The main contacts of described thermorelay main contacts with the first A.C. contactor and the second A.C. contactor respectively is connected，The main contacts of described first A.C. contactor and the second A.C. contactor is connected with 1# three-phase AC asynchronous motor and 2# three-phase AC asynchronous motor respectively，The main contacts of described first VFC A.C. contactor is connected with major loop fuse，Described major loop fuse is connected with the input of input reactance device，The described outfan of input reactance device is connected with the input of converter，The outfan of described converter is connected with the input of output reactance device，The outfan of described output reactance device and the main contacts of the second VFC A.C. contactor are connected，The main contacts of described second VFC A.C. contactor main contacts with the first A.C. contactor and the second A.C. contactor respectively is connected，Described control circuit includes industrial frequency control circuit、Manual frequency conversion control circuit、PLC control circuit and the some display lamps being arranged on control box、Operation button and a control mode permutator，Described control mode permutator is provided with stopping gear、Industrial frequency control gear、Manual VFC gear and PLC control gear.
Further, described control box is provided with 1# converting operation display lamp, 2# converting operation display lamp, 1# power frequency operation display lamp, 2# power frequency operation display lamp, converter run indicator, overload light, 1# start button, 2# start button, converter start button, 1# stop button, 2# stop button, converter stop button, 1# inspection switch, 2# inspection switch and control mode permutator.
nullFurther，Described control circuit includes controlling loop fuse，Described control loop fuse respectively with thermal relay normally closed contact、Thermorelay normally opened contact、Control mode permutator manual VFC gear and PLC control gear、First VFC A.C. contactor normally opened contact、Industrial frequency control A.C. contactor normally opened contact、Converter runs indicating relay normally opened contact、Digital output runs instruction point and is connected，Described thermal relay normally closed contact is connected with the industrial frequency control gear of control mode permutator，The industrial frequency control gear of described control mode permutator respectively with the first VFC A.C. contactor normally-closed contact、1# start button、First A.C. contactor normally opened contact、2# start button、Second A.C. contactor normally opened contact、Control mode permutator manual VFC gear、Industrial frequency control A.C. contactor normally-closed contact、Converter start button is connected，Described first VFC A.C. contactor normally-closed contact successively with the second VFC A.C. contactor normally-closed contact、Industrial frequency control ac contactor coil is connected，Described 1# start button controls the 3rd switch with 1# stop button and PLC respectively and is connected，Described 1# stop button successively with 1# inspection switch、Second A.C. contactor normally-closed contact、First ac contactor coil series connection，Described first A.C. contactor normally opened contact is in parallel with 1# start button，Described 1# stop button is in parallel with manually booting converter relay normally open contact，Described 2# start button controls second switch with 2# stop button and PLC respectively and is connected，Described 2# stop button successively with 2# inspection switch、First A.C. contactor normally-closed contact、Second A.C. contactor series connection，Described second A.C. contactor normally opened contact is in parallel with 2# start button，Described 2# stop button is in parallel with manually booting converter relay normally open contact，Described industrial frequency control A.C. contactor normally-closed contact is connected with the first VFC ac contactor coil and the second VFC ac contactor coil respectively，Described converter start button successively with converter stop button、Manually boot the series connection of converter relay coil，Described converter start button is in parallel with manually booting converter relay normally open contact，The PLC of described control mode permutator controls gear and controls the 3rd switch respectively with PLC、PLC controls second switch、PLC controls the first switch、Frequency converter frequency source controls relay coil and is connected，Described PLC controls the first switch and is connected with industrial frequency control A.C. contactor normally-closed contact，Described thermorelay normally opened contact is connected with overload light，Described first VFC A.C. contactor normally opened contact and the second VFC A.C. contactor normally opened contact are connected，Described second VFC A.C. contactor normally opened contact respectively with the first A.C. contactor normally opened contact、Second A.C. contactor normally opened contact is connected，Described first A.C. contactor normally opened contact is connected with 1# converting operation display lamp，Described second A.C. contactor normally opened contact is connected with 2# converting operation display lamp，Described industrial frequency control A.C. contactor normally opened contact respectively with the first A.C. contactor normally opened contact、Second A.C. contactor normally opened contact is connected，Described first A.C. contactor normally opened contact is connected with 1# power frequency operation display lamp，Described second A.C. contactor normally opened contact is connected with 2# power frequency operation display lamp，Described converter runs indicating relay normally opened contact and is connected with converter run indicator，Described digital output runs instruction point and is connected with the coil of converter operation indicating relay.
Further, single open-door structure before described control box uses.
This utility model hinge structure has the advantages that the device for one drag two control three-phase AC asynchronous motor of the present utility model includes main loop circuit, control circuit, control box and the frequency-charger cabinet that is arranged in electromagnetism station and switching cabinet, can be achieved with two three-phase AC asynchronous motor industrial frequency controls with a converter, stop, manual VFC and PLC control and complete the switching between two three-phase AC asynchronous motors, decrease the quantity of converter, centralized Control and monitoring can be realized, action required personnel are few, decrease the amount of labour of operator, breakdown judge is simple and clear, electrical service and maintenance are convenient, cost-effective, flexible operation, improve the productivity ratio of enterprise.
Accompanying drawing explanation
Fig. 1 is this utility model main loop circuit schematic diagram；
Fig. 2 is this utility model control circuit schematic diagram；
Fig. 3 is the structural representation of this utility model control box；
Fig. 4 is the structural representation of this utility model frequency-charger cabinet；
Fig. 5 is the structural representation of this utility model switching cabinet.
This utility model reference implication is as follows: 1, chopper；2, major loop fuse；3, the first A.C. contactor；4, the second A.C. contactor；5, industrial frequency control A.C. contactor；6, the first VFC A.C. contactor；7, the second VFC A.C. contactor；8, converter；9, input reactance device；10, output reactance device；11,1# three-phase AC asynchronous motor；12,2# three-phase AC asynchronous motor；13,1# converting operation display lamp；14,2# converting operation display lamp；15,1# power frequency operation display lamp；16,2# power frequency operation display lamp；17, converter run indicator；18, overload light；19,1# start button；20,1# stop button；21,1# inspection switch；22,2# start button；23,2# stop button；24,2# inspection switch；25, converter start button；26, converter stop button；27, control mode permutator；28, converter relay is manually booted；29, overload thermal relay；30, converter runs indicating relay；31, digital output runs instruction point；32, PLC controls the first switch；33, PLC controls second switch；34, PLC controls the 3rd switch；35, frequency converter frequency source controls relay；36, loop fuse is controlled.
Detailed description of the invention
The utility model is described in further detail with detailed description of the invention below in conjunction with the accompanying drawings.
nullAs Figure 1-5，A kind of device controlling three-phase AC asynchronous motor for one drag two，Including main loop circuit、Control circuit、Control box and the frequency-charger cabinet that is arranged in electromagnetism station and switching cabinet，Main loop circuit includes the converter 8 being arranged in frequency conversion tank、Input reactance device 9、Output reactance device 10 and be arranged on switching cabinet in chopper 1、Major loop fuse 2、First A.C. contactor 3、Second A.C. contactor 4、Industrial frequency control A.C. contactor 5、First VFC A.C. contactor 6 and the second VFC A.C. contactor 7、Thermorelay 29，One end of chopper 1 is connected with AC power cord，Other end main contacts with industrial frequency control A.C. contactor 5 and the first VFC A.C. contactor 6 respectively is connected，The main contacts of industrial frequency control A.C. contactor 5 is connected with the main contacts of thermorelay 29，The main contacts of thermorelay 29 main contacts with the first A.C. contactor 3 and the second A.C. contactor 4 respectively is connected，First A.C. contactor 3 is connected with 1# three-phase AC asynchronous motor 11 and 2# three-phase AC asynchronous motor 12 respectively with the main contacts of the second A.C. contactor 4，The main contacts of the first VFC A.C. contactor 6 is connected with major loop fuse 2，Major loop fuse 2 is connected with the input of input reactance device 9，The outfan of input reactance device 9 is connected with the input of converter 8，The outfan of converter 8 is connected with the input of output reactance device 10，The outfan of output reactance device 10 and the main contacts of the second VFC A.C. contactor 7 are connected，The main contacts of the second VFC A.C. contactor 7 main contacts with the first A.C. contactor 3 and the second A.C. contactor 4 respectively is connected.
Control circuit includes industrial frequency control circuit, manual frequency conversion control circuit, PLC control circuit and the 1# converting operation display lamp 13 being arranged on control box, 2# converting operation display lamp 14, 1# power frequency operation display lamp 15, 2# power frequency operation display lamp 16, converter run indicator 17, overload light 18, 1# start button 19, 2# start button 22, converter start button 25, 1# stop button 20, 2# stop button 23, converter stop button 26, 1# inspection switch 21, 2# inspection switch 24 and control mode permutator 27, control mode permutator 27 is provided with stopping gear, industrial frequency control gear, manual VFC gear and PLC control gear.Control box uses front single open-door structure, and the corrosion resistant plate thick by 1.5mm is made, the long X a height of 600X600X700mm of width X.nullSpecifically，Control circuit includes controlling loop fuse 36，Control loop fuse 36 respectively with thermorelay 29 normally-closed contact、Thermorelay 29 normally opened contact、Control mode permutator 27 manual VFC gear and PLC control gear、First VFC A.C. contactor 6 normally opened contact、Industrial frequency control A.C. contactor 5 normally opened contact、Converter runs indicating relay 30 normally opened contact、Digital output runs instruction point 31 and is connected，Thermorelay 29 normally-closed contact is connected with the industrial frequency control gear of control mode permutator 27，The industrial frequency control gear of control mode permutator 27 respectively with the first VFC A.C. contactor 6 normally-closed contact、1# start button 19、First A.C. contactor 3 normally opened contact、2# start button 22、Second A.C. contactor 4 normally opened contact、Control mode permutator 27 manual VFC gear、Industrial frequency control A.C. contactor 5 normally-closed contact、Converter start button 25 is connected，First VFC A.C. contactor 6 normally-closed contact successively with the second VFC A.C. contactor 7 normally-closed contact、Industrial frequency control A.C. contactor 5 coils connected in series，
null1# start button 19 controls the 3rd switch 34 respectively and is connected with 1# stop button 20 and PLC，1# stop button 20 successively with 1# inspection switch 21、Second A.C. contactor 4 normally-closed contact、First A.C. contactor 3 coils connected in series，First A.C. contactor 3 normally opened contact is in parallel with 1# start button 19，1# stop button 20 is in parallel with manually booting converter relay 28 normally opened contact，2# start button 22 controls second switch 33 with 2# stop button 23 and PLC respectively and is connected，2# stop button 23 successively with 2# inspection switch 24、First A.C. contactor 3 normally-closed contact、Second A.C. contactor 4 is connected，Second A.C. contactor 4 normally opened contact is in parallel with 2# start button 22，2# stop button 23 is in parallel with manually booting converter relay 28 normally opened contact，Industrial frequency control A.C. contactor 5 normally-closed contact is connected with the first VFC A.C. contactor 6 coil and the second VFC A.C. contactor 7 coil respectively，Converter start button 25 successively with converter stop button 26、Manually boot converter relay 28 coils connected in series，Converter start button 25 is in parallel with manually booting converter relay 28 normally opened contact，The PLC of control mode permutator 27 controls gear and controls the 3rd switch 34 respectively with PLC、PLC controls second switch 33、PLC controls the first switch 32、Frequency converter frequency source controls relay 35 coil and is connected，PLC controls the first switch 32 and is connected with industrial frequency control A.C. contactor 5 normally-closed contact，Thermorelay 29 normally opened contact is connected with overload light 18，First VFC A.C. contactor 6 normally opened contact and the second VFC A.C. contactor 7 normally opened contact are connected，Second VFC A.C. contactor 7 normally opened contact respectively with the first A.C. contactor 3 normally opened contact、Second A.C. contactor 4 normally opened contact is connected，First A.C. contactor 3 normally opened contact is connected with 1# converting operation display lamp 13，Second A.C. contactor 4 normally opened contact is connected with 2# converting operation display lamp 14，Industrial frequency control A.C. contactor 5 normally opened contact respectively with the first A.C. contactor 3 normally opened contact、Second A.C. contactor 4 normally opened contact is connected，First A.C. contactor 3 normally opened contact is connected with 1# power frequency operation display lamp 15，Second A.C. contactor 4 normally opened contact is connected with 2# power frequency operation display lamp 16，Converter runs indicating relay 30 normally opened contact and is connected with converter run indicator 17，Digital output runs instruction point 31 and is connected with the coil of converter operation indicating relay 30.
As depicted in figs. 1 and 2, control mode permutator 27 is when stopping gear (0), first A.C. contactor the 3, second A.C. contactor 4, industrial frequency control A.C. contactor the 5, first VFC A.C. contactor the 6, second VFC A.C. contactor 7 coil blackout discharge, and first A.C. contactor the 3, second A.C. contactor 4, industrial frequency control A.C. contactor the 5, first VFC A.C. contactor the 6, second VFC A.C. contactor 7 main contact disconnect；Converter 8 power-off, 1# three-phase AC asynchronous motor 11,2# three-phase AC asynchronous motor 12 shut down.
Control mode permutator 27 is industrial frequency control gear (I), three-phase AC asynchronous motor belongs to industrial frequency control, industrial frequency control A.C. contactor 5 coil obtains electricity adhesive, industrial frequency control A.C. contactor 5 main contact Guan Bi (industrial frequency control A.C. contactor 5 and first VFC A.C. contactor the 6, second VFC A.C. contactor 7 are controlling loop dynamic circuit breaker auxiliary contact interlocking)；1# inspection switch 21 closes, and presses 1# start button 19, and the first A.C. contactor 3 coil obtains electricity adhesive, and the first A.C. contactor 3 main contact Guan Bi, 1# three-phase AC asynchronous motor 11 starts operating, and 1# power frequency operation display lamp 15 is bright.Pressing 1# stop button 20, the first A.C. contactor 3 coil blackout release, the first A.C. contactor 3 main contact disconnects, and 1# three-phase AC asynchronous motor 11 stops operating, and 1# power frequency operation display lamp 15 goes out；Or 2# inspection switch 24 closes, press 2# start button 22, second A.C. contactor 4 coil obtains electricity adhesive, second A.C. contactor 4 main contact Guan Bi, 2# three-phase AC asynchronous motor 12 starts operating (the first A.C. contactor 3 and the second A.C. contactor 4 are controlling loop dynamic circuit breaker auxiliary contact interlocking), and 2# power frequency operation display lamp 16 is bright.Pressing 2# stop button 23, the second A.C. contactor 4 coil blackout release, the second A.C. contactor 4 main contact disconnects, and 2# three-phase AC asynchronous motor 12 stops operating, and 2# power frequency operation display lamp 16 goes out.Overload thermal relay 29 normally closed interlock disconnects, and controls loop power-off；Overload thermal relay 29 normally open contact closes, and overload light 18 is bright.
Control mode permutator 27 is manual VFC gear (II), and three-phase AC asynchronous motor belongs to manual VFC, and the regulation of three-phase AC asynchronous motor frequency performs on the HIM plate of converter 8.First VFC A.C. contactor the 6, second VFC A.C. contactor 7 coil obtains electricity adhesive, first VFC A.C. contactor the 6, second VFC A.C. contactor 7 main contact Guan Bi, and converter 8 obtains electric；1# inspection switch 21 closes, and presses 1# start button 19, and the first A.C. contactor 3 coil obtains electricity adhesive, and the first A.C. contactor 3 main contact Guan Bi, 1# converting operation display lamp 13 is bright；By low-converter start button 25, manually boot converter relay 28 coil and obtain electricity adhesive, manually boot converter relay 28 normally open contact Guan Bi, connect converter 8 internal terminal and start converter 8, converter 8 brings into operation, instruction point 31 Guan Bi is run from the output of converter 8 internal digital amount, converter runs indicating relay 30 coil and obtains electricity adhesive, converter runs indicating relay 30 normally open contact Guan Bi, converter run indicator 17 is bright, and 1# three-phase AC asynchronous motor 11 starts to start operating；By low-converter stop button 26, manually boot the release of converter relay 28 coil blackout, manually boot converter relay 28 normally open contact to disconnect, connect converter 8 internal terminal and stop converter 8, converter 8 shuts down, and runs instruction point 31 disconnection from the output of converter 8 internal digital amount, and converter runs the release of indicating relay 30 coil blackout, converter runs indicating relay 30 normally open contact and disconnects, and converter run indicator 17 is gone out；Pressing 1# stop button 20, the first A.C. contactor 3 coil blackout release, the first A.C. contactor 3 main contact disconnects, and 1# three-phase AC asynchronous motor 11 stops,
1# converting operation display lamp 13 goes out；Or 2# inspection switch 24 closes, pressing 2# start button 22, the second A.C. contactor 4 coil obtains electricity adhesive, and the second A.C. contactor 4 main contact Guan Bi, 2# converting operation display lamp 14 is bright；By low-converter start button 25, manually boot converter relay 28 coil and obtain electricity adhesive, manually boot converter relay 28 normally open contact Guan Bi, connect converter 8 internal terminal and start converter 8, converter 8 brings into operation, instruction point 31 Guan Bi is run from the output of converter 8 internal digital amount, converter runs indicating relay 30 coil and obtains electricity adhesive, converter runs indicating relay 30 normally open contact Guan Bi, converter run indicator 17 is bright, and 2# three-phase AC asynchronous motor 12 starts to start operating；By low-converter stop button 26, manually boot the release of converter relay 28 coil blackout, manually boot converter relay 28 normally open contact to disconnect, connect converter 8 internal terminal and stop converter 8, converter 8 shuts down, and runs instruction point 31 disconnection from the output of converter 8 internal digital amount, and converter runs the release of indicating relay 30 coil blackout, converter runs indicating relay 30 normally open contact and disconnects, and converter run indicator 17 is gone out；Pressing 2# stop button 23, the second A.C. contactor 4 coil blackout release, the second A.C. contactor 4 main contact disconnects, and 2# three-phase AC asynchronous motor 12 shuts down,
2# converting operation display lamp 14 goes out.
Control mode permutator 27 controls gear (III) at PLC, three-phase AC asynchronous motor belongs to PLC control, frequency converter frequency source controls relay 35 and obtains electric, and control frequency converter frequency source is for being automatically adjusted, and three-phase AC asynchronous motor frequency regulates by PLC control realization.PLC control first switchs 32 Guan Bi startup first VFC A.C. contactor the 6, second VFC A.C. contactor 7 coils and obtains electricity adhesive, and first VFC A.C. contactor the 6, second VFC A.C. contactor 7 main contact closes, and converter 8 obtains electric；1# inspection switch 21 closes, and PLC controls second switch 33 Guan Bi startup the first A.C. contactor 3 coil and obtains electricity adhesive, the first A.C. contactor 3 main contact Guan Bi；1# converting operation display lamp 13 is bright, PLC passes through network startup converter 8, converter 8 brings into operation, instruction point 31 Guan Bi is run from the output of converter 8 internal digital amount, converter runs indicating relay 30 coil and obtains electricity adhesive, converter runs indicating relay 30 normally open contact Guan Bi, and converter run indicator 17 is bright, and 1# three-phase AC asynchronous motor 11 starts operating；PLC stops converter 8 by network, instruction point 31 disconnection is run from the output of converter 8 internal digital amount, converter runs the release of indicating relay 30 coil blackout, converter runs indicating relay 30 normally open contact and disconnects, converter run indicator 17 is gone out, and 1# three-phase AC asynchronous motor 11 shuts down；PLC controls second switch 33 and stops the first A.C. contactor 3 coil blackout release, and the first A.C. contactor 3 main contact disconnects, and 1# converting operation display lamp 13 goes out；Or 2# inspection switch 24 closes, PLC controls the 3rd switch 34 Guan Bi startup the second A.C. contactor 4 coil and obtains electricity adhesive, and the second A.C. contactor 4 main contact Guan Bi, 2# converting operation display lamp 14 is bright；PLC passes through network startup converter 8, converter 8 brings into operation, instruction point 31 Guan Bi is run from the output of converter 8 internal digital amount, converter runs indicating relay 30 coil and obtains electricity adhesive, converter runs indicating relay 30 normally open contact Guan Bi, converter run indicator 17 is bright, and 2# three-phase AC asynchronous motor 12 starts operating；PLC stops converter 8 by network, instruction point 31 disconnection is run from the output of converter 8 internal digital amount, converter runs the release of indicating relay 30 coil blackout, converter runs indicating relay 30 normally open contact and disconnects, converter run indicator 17 is gone out, and 2# three-phase AC asynchronous motor 12 stops；PLC controls the 3rd switch 34 stopping the second A.C. contactor 4 coil blackout release, and the second A.C. contactor 4 main contact disconnects, and 2# converting operation display lamp 14 goes out.
Claims (4)
- null1. the device controlling three-phase AC asynchronous motor for one drag two，It is characterized in that: include main loop circuit、Control circuit、Control box and the frequency-charger cabinet that is arranged in electromagnetism station and switching cabinet，Described main loop circuit includes the converter (8) being arranged in frequency conversion tank、Input reactance device (9)、Output reactance device (10) and be arranged on switching cabinet in chopper (1)、Major loop fuse (2)、First A.C. contactor (3)、Second A.C. contactor (4)、Industrial frequency control A.C. contactor (5)、First VFC A.C. contactor (6) and the second VFC A.C. contactor (7)、Thermorelay (29)，One end of described chopper (1) is connected with AC power cord，Other end main contacts with industrial frequency control A.C. contactor (5) and the first VFC A.C. contactor (6) respectively is connected，The main contacts of described industrial frequency control A.C. contactor (5) is connected with the main contacts of thermorelay (29)，The main contacts of described thermorelay (29) main contacts with the first A.C. contactor (3) and the second A.C. contactor (4) respectively is connected，Described first A.C. contactor (3) is connected with 1# three-phase AC asynchronous motor (11) and 2# three-phase AC asynchronous motor (12) respectively with the main contacts of the second A.C. contactor (4)，The main contacts of described first VFC A.C. contactor (6) is connected with major loop fuse (2)，Described major loop fuse (2) is connected with the input of input reactance device (9)，The outfan of described input reactance device (9) is connected with the input of converter (8)，The outfan of described converter (8) is connected with the input of output reactance device (10)，The outfan of described output reactance device (10) and the main contacts of the second VFC A.C. contactor (7) are connected，The main contacts of described second VFC A.C. contactor (7) main contacts with the first A.C. contactor (3) and the second A.C. contactor (4) respectively is connected，Described control circuit includes industrial frequency control circuit、Manual frequency conversion control circuit、PLC control circuit and the some display lamps being arranged on control box、Operation button and a control mode permutator (27)，Described control mode permutator (27) is provided with stopping gear、Industrial frequency control gear、Manual VFC gear and PLC control gear.
- A kind of device controlling three-phase AC asynchronous motor for one drag two the most according to claim 1, it is characterized in that: 1# converting operation display lamp (13) is installed on described control box, 2# converting operation display lamp (14), 1# power frequency operation display lamp (15), 2# power frequency operation display lamp (16), converter run indicator (17), overload light (18), 1# start button (19), 2# start button (22), converter start button (25), 1# stop button (20), 2# stop button (23), converter stop button (26), 1# inspection switch (21), 2# inspection switch (24) and control mode permutator (27).
- nullA kind of device controlling three-phase AC asynchronous motor for one drag two the most according to claim 2，It is characterized in that: described control circuit includes controlling loop fuse (36)，Described control loop fuse (36) respectively with thermorelay (29) normally-closed contact、Thermorelay (29) normally opened contact、Control mode permutator (27) manual VFC gear and PLC control gear、First VFC A.C. contactor (6) normally opened contact、Industrial frequency control A.C. contactor (5) normally opened contact、Converter runs indicating relay (30) normally opened contact、Digital output runs instruction point (31) and is connected，Described thermorelay (29) normally-closed contact is connected with the industrial frequency control gear of control mode permutator (27)，The industrial frequency control gear of described control mode permutator (27) respectively with the first VFC A.C. contactor (6) normally-closed contact、1# start button (19)、First A.C. contactor (3) normally opened contact、2# start button (22)、Second A.C. contactor (4) normally opened contact、Control mode permutator (27) manual VFC gear、Industrial frequency control A.C. contactor (5) normally-closed contact、Converter start button (25) is connected，Described first VFC A.C. contactor (6) normally-closed contact successively with the second VFC A.C. contactor (7) normally-closed contact、Industrial frequency control A.C. contactor (5) coils connected in series，Described 1# start button (19) controls the 3rd switch (34) with 1# stop button (20) and PLC respectively and is connected，Described 1# stop button (20) successively with 1# inspection switch (21)、Second A.C. contactor (4) normally-closed contact、First A.C. contactor (3) coils connected in series，Described first A.C. contactor (3) normally opened contact is in parallel with 1# start button (19)，Described 1# stop button (20) is in parallel with manually booting converter relay (28) normally opened contact，Described 2# start button (22) controls second switch (33) with 2# stop button (23) and PLC respectively and is connected，Described 2# stop button (23) successively with 2# inspection switch (24)、First A.C. contactor (3) normally-closed contact、Second A.C. contactor (4) is connected，Described second A.C. contactor (4) normally opened contact is in parallel with 2# start button (22)，Described 2# stop button (23) is in parallel with manually booting converter relay (28) normally opened contact，Described industrial frequency control A.C. contactor (5) normally-closed contact is connected with the first VFC A.C. contactor (6) coil and the second VFC A.C. contactor (7) coil respectively，Described converter start button (25) successively with converter stop button (26)、Manually boot converter relay (28) coils connected in series，Described converter start button (25) is in parallel with manually booting converter relay (28) normally opened contact，The PLC of described control mode permutator (27) controls gear and controls the 3rd switch (34) respectively with PLC、PLC controls second switch (33)、PLC controls the first switch (32)、Frequency converter frequency source controls relay (35) coil and is connected，Described PLC controls the first switch (32) and is connected with industrial frequency control A.C. contactor (5) normally-closed contact，Described thermorelay (29) normally opened contact is connected with overload light (18)，Described first VFC A.C. contactor (6) normally opened contact and the second VFC A.C. contactor (7) normally opened contact are connected，Described second VFC A.C. contactor (7) normally opened contact respectively with the first A.C. contactor (3) normally opened contact、Second A.C. contactor (4) normally opened contact is connected，Described first A.C. contactor (3) normally opened contact is connected with 1# converting operation display lamp (13)，Described second A.C. contactor (4) normally opened contact is connected with 2# converting operation display lamp (14)，Described industrial frequency control A.C. contactor (5) normally opened contact respectively with the first A.C. contactor (3) normally opened contact、Second A.C. contactor (4) normally opened contact is connected，Described first A.C. contactor (3) normally opened contact is connected with 1# power frequency operation display lamp (15)，Described second A.C. contactor (4) normally opened contact is connected with 2# power frequency operation display lamp (16)，Described converter runs indicating relay (30) normally opened contact and is connected with converter run indicator (17)，Described digital output runs instruction point (31) and is connected with the coil of converter operation indicating relay (30).
- A kind of device controlling three-phase AC asynchronous motor for one drag two the most according to claim 1 and 2, it is characterised in that: described control box uses front single open-door structure.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620202178.9U CN205509900U (en) | 2016-03-16 | 2016-03-16 | A device that be used for dragging two control three phase ac asynchronous motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620202178.9U CN205509900U (en) | 2016-03-16 | 2016-03-16 | A device that be used for dragging two control three phase ac asynchronous motor |
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| CN205509900U true CN205509900U (en) | 2016-08-24 |
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| CN201620202178.9U Expired - Fee Related CN205509900U (en) | 2016-03-16 | 2016-03-16 | A device that be used for dragging two control three phase ac asynchronous motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790646A (en) * | 2016-03-16 | 2016-07-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Device for one-drive-two control of three-phase AC asynchronous motors |
| CN106411223A (en) * | 2016-11-17 | 2017-02-15 | 北京航天发射技术研究所 | Alternating current asynchronous motor driving control system for rocket body support vehicle |
-
2016
- 2016-03-16 CN CN201620202178.9U patent/CN205509900U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790646A (en) * | 2016-03-16 | 2016-07-20 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Device for one-drive-two control of three-phase AC asynchronous motors |
| CN106411223A (en) * | 2016-11-17 | 2017-02-15 | 北京航天发射技术研究所 | Alternating current asynchronous motor driving control system for rocket body support vehicle |
| CN106411223B (en) * | 2016-11-17 | 2019-01-25 | 北京航天发射技术研究所 | A kind of automobile-used ACasynchronous motor drive control system of rocket body bracket |
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