CN105978406A - Star-angle conversion starter for three-phase alternating-current motor - Google Patents
Star-angle conversion starter for three-phase alternating-current motor Download PDFInfo
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- CN105978406A CN105978406A CN201610370819.6A CN201610370819A CN105978406A CN 105978406 A CN105978406 A CN 105978406A CN 201610370819 A CN201610370819 A CN 201610370819A CN 105978406 A CN105978406 A CN 105978406A
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- chopper
- driving lever
- star
- dropout
- handle axis
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- 239000007858 starting material Substances 0.000 title claims abstract description 26
- 238000006243 chemical reaction Methods 0.000 title abstract description 8
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 208000036119 Frailty Diseases 0.000 claims description 32
- 206010003549 asthenia Diseases 0.000 claims description 32
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 32
- 230000036461 convulsion Effects 0.000 claims description 10
- 230000006698 induction Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 description 10
- 239000003054 catalyst Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 3
- 230000000994 depressogenic effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
- H02P1/26—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor
- H02P1/32—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual polyphase induction motor by star/delta switching
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Breakers (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a star-angle conversion starter for a three-phase alternating-current motor. The starter comprises three groups of three-pole air circuit breakers including main switching circuit breakers, start-connecting circuit breakers, and angular-connecting circuit breakers. The main switching circuit breakers and the start-connecting circuit breakers are connected in series by a six-pole drive shaft. A six-pole linkage handle is arranged outside the main switching circuit breakers and the start-connecting circuit breakers. A releasing and interlocking mechanism is arranged between the main switching circuit breakers and the start-connecting circuit breakers. The angular-connecting circuit breakers are connected in series by a three-pole drive shaft; and a three-pole linkage handle is arranged outside the angular-connecting circuit breakers. A converter is arranged between the start-connecting circuit breakers and the angular-connecting circuit breakers. One end of the six-pole drive shaft is connected with a main electrically controlled driver and the other end of the six-pole drive shaft controls connection or disconnection of the angular-connecting circuit breakers. One end of the three-pole drive shaft is connected with an electrically controlled driver and the other end of the three-pole drive shaft controls connection or disconnection of the start-connecting circuit breakers by the converter. According to the invention, on the basis of simple combination of the three groups of circuit breakers, star-angle conversion starting of a three-phase alternating-current motor can be realized.
Description
Technical field
The present invention relates to three-phase alternating-current motor start with low-voltage (phase voltage), just proceeding to high voltage (line voltage)
The often automatic conversion technology of operating.
Background technology
High-power three-phase alternating-current motor is 8-10 times of normal value to dynamic starting current from static state, in the moment meeting started
Periphery electrical equipment is impacted.Generally three windings to motor use the phase voltage of three-phase electricity to make reduced-voltage starting,
Starting current can be greatly reduced, when changing line voltage after rotor smooth running again into, maintain the normal operation of motor.For
Realizing above-mentioned purpose, the three-phase windings head and the tail wiring of motor is opened by the Electrical Engineer of specialty, accesses three groups of catalysts,
Controlling by the solenoid of three groups of catalysts carries out logic and sequential combination, first star connects corner connection again, completes whole startup
Journey.Complete unit needs three catalysts and the time relays etc..Expend substantial amounts of noble silver, copper material, silicon steel sheet etc.
Raw material, the space that solenoid itself also expends electric energy, the equipment that takies is a lot, owing to catalyst does not has circuit protection function,
Starter also needs to install chopper, and wiring is extremely complex.
Summary of the invention
The problem existed for prior art, the present invention provides a kind of three phase alternating current motor star angle switch starter, breaks with three groups
The simple combination collocation of road device realizes the star angle conversion of three-phase alternating-current motor and starts.
In order to solve above-mentioned technical problem, a kind of three phase alternating current motor star angle switch starter that the present invention proposes, including three groups
Three pole air-breaks, described three group of three pole air-break is that master switch chopper, star connect chopper and corner connection open circuit respectively
Device；By a six types of severe debility disease drive shaft, described master switch chopper and described star are connect chopper to be concatenated, described master switch open circuit
Device and described star connect the outside of chopper and are provided with six types of severe debility disease co-acting lever, described master switch chopper and described star connect chopper it
Between be not provided with dropout interlocking gear；By three grades of drive shafts, described corner connection chopper is together in series, described corner connection open circuit
The outside of device is provided with three pole co-acting levers；Described star connects and is disposed with transducer between chopper and described corner connection chopper；Institute
State one end of six types of severe debility disease drive shaft to the outside of described master switch chopper, the other end of described six types of severe debility disease drive shaft with described turn
Described first handle axis cam within parallel operation connects；One end of described three pole drive shafts to the side of described corner connection chopper is
Only, the other end of described three pole drive shafts is connected with the described second handle axis cam of described converter inside.
Further, this trigger also includes the automatically controlled driver of master being arranged on outside described master switch chopper and is arranged on institute
State the automatically controlled driver outside corner connection chopper；Rear and institute are stretched out from described master switch chopper in one end of described six types of severe debility disease drive shaft
State main automatically controlled driver to connect；One end of described three pole drive shafts is automatically controlled with described after stretching out from the outside of described corner connection chopper
Driver connects.
One three phase alternating current motor star angle of the present invention switch starter, wherein, described six types of severe debility disease drive shaft and described three grades of drive shafts
It is square shaft；Described transducer includes that housing, described housing are divided into two levels in a thickness direction, and one of them level leans on
Nearly described star connects the side of chopper, and another level is near the side of described corner connection chopper；It is provided with first-hand in described housing
Arbor cam, second handle axis cam, the first dropout driving lever and the second dropout driving lever；Described first handle axis cam and second
The center of rotation of Handle axis cam is provided with square hole, the square hole on described first handle axis cam and described six types of severe debility disease drive shaft respectively
Coordinating, the square hole on described second handle axis cam coordinates with described three pole drive shafts；Described first dropout driving lever and second takes off
Button driving lever is arranged on housing by bearing pin, and the first dropout driving lever and the second dropout driving lever are rotationally connected with described bearing pin, described
First dropout driving lever and the second dropout driving lever are arranged in chi structure on two levels, and cross point is positioned at described first-hand arbor
Between cam and described bearing pin or between described second handle axis cam and described bearing pin；Outside described first handle axis cam
Profile and the upper end contoured fit of described first dropout driving lever, the outline of described second handle axis cam takes off with described second
The upper end contoured fit of button driving lever；On described first dropout driving lever, it is being positioned at first contact pilotage that has of described bearing pin, institute
Stating on the second dropout driving lever, be positioned at second contact pilotage that has of described bearing pin, described second contact pilotage extend into described star and connects disconnected
Inside the tripping mechanism of road device, described first contact pilotage extend into inside the tripping mechanism of described corner connection chopper；Described second touches
Pin connects the dropout breaking of chopper for triggering described star, and described first contact pilotage falls for the dropout triggering described corner connection chopper
Lock；Described transducer is additionally provided with manual jerk mechanism, and described manual jerk mechanism includes scram button, scram button lock ring
And fork, described fork is fixed on housing by a pin, and one end of described scram button is positioned at the outside of described housing,
The other end of described scram button contacts with one end swing arm of described fork, and the other end swing arm of described fork is simultaneously with described the
The bottom contact of one dropout driving lever and the second dropout driving lever；Described first dropout driving lever, the second dropout driving lever and described fork
And it is equipped with tension spring between housing.
One three phase alternating current motor star angle of the present invention switch starter, wherein, the bossing of described first handle axis cam and
The bossing of described second handle axis cam is arranged symmetrically when installing, when described transducer is original state, and described the
The bossing of one handle axis cam oppresses the upper end of described first dropout driving lever, and make on described first dropout driving lever is described
First contact pilotage is in and limits the position that described corner connection closing of power circuit breaker closes a floodgate；Synchronization, described second handle axis cam recessed
Fall into part to contact with the upper end of described second dropout driving lever, make described second contact pilotage on described second dropout driving lever be in right
Described star connects the position of the unrestricted combined floodgate of chopper.
One three phase alternating current motor star angle of the present invention switch starter, wherein, described manual jerk mechanism includes flexible axle structure,
Described scram button and described scram button lock ring being arranged on the guidance panel of machine by flexible axle structure, described jerk is pressed
The other end of button is provided with the connecting rod that one end swing arm with described fork contacts.
One three phase alternating current motor star angle of the present invention switch starter, wherein, the wiring of the outfan of described master switch chopper
Being provided with three-phase current monitoring induction coil at window, described induction coil coordinates described master switch chopper different to current of electric
Often, phase shortage, three-phase current unbalance play monitoring and protective effect.
Compared with prior art, the invention has the beneficial effects as follows:
1. simple in circuits, saves the set-up time of electrician.
2. save substantial amounts of noble silver, copper, silicon steel sheet etc..
3. save solenoid energy consumption.
4. saved device interior space.
5. general below 20A catalyst does not has spark blowout, and the present invention program can evade arcing risk.
The most directly provide overload, short-circuit protection, it is not necessary to separately set chopper.
Accompanying drawing explanation
Fig. 1 is three-phase alternating-current motor star angle of the present invention switch starter explosive view；
Fig. 2 is the structural representation of transducer in the switch starter of three-phase alternating-current motor star angle of the present invention；
Fig. 3 is the internal structure axonometric chart of transducer shown in Fig. 2；
Fig. 4 is the internal structure side view of transducer shown in Fig. 3；
Fig. 5 is the embodiment of the present invention 1 automatically controlled three-phase alternating-current motor star angle switch starter schematic diagram；
Fig. 6 is the embodiment of the present invention 2 Non-follow control three-phase alternating-current motor star angle transition diagram；
Fig. 7 is three-phase alternating-current motor star angle of the present invention switch starter electrical wiring schematic diagram；
Fig. 8 is star wiring schematic diagram in the switch starter of three-phase alternating-current motor star angle of the present invention；
Fig. 9 is three-phase alternating-current motor star angle of the present invention switch starter intermediate cam shape wiring schematic diagram.
In figure:
1-master switch chopper 2-star connects chopper 3-corner connection chopper
4-transducer 4a-first handle axis cam 4b-second handle axis cam
The 4c-first driving lever 4d-second that threads off threads off driving lever 4e-the first contact pilotage
4f-the second contact pilotage 4g-scram button 4h-scram button lock ring
The 4i-flexible axle structure 5-six types of severe debility disease automatically controlled driver of drive shaft 6-master
The 7-six types of severe debility disease co-acting lever 8-tri-pole automatically controlled driver of drive shaft 9-
10-tri-pole co-acting lever 11-electric current induction coil
Detailed description of the invention
Being described in further detail technical solution of the present invention with specific embodiment below in conjunction with the accompanying drawings, described is embodied as
The present invention is only explained by example, not in order to limit the present invention.
It is several times as much as the phenomenon of rated current owing to heavy-duty motor can produce in the moment started, accordingly, it would be desirable to by motor winding
It is overlapped to form star (phase voltage) mode of connection temporarily and carries out low voltage starting, just then return to after waiting rotor smooth running
Normal triangle (line voltage) mode of connection enters high-pressure service.It is to utilize three that conventional star angle conversion starts motor scheme
Catalyst mutually overlaps, by the incompatible realization of logical groups of the electromagnetism pull-in winding of catalyst self.The design of the present invention is thought
Road is that application air-break is combined, it is achieved the side of conversion automatically of motor " low pressure Y startup/high pressure △ work operating "
Method and specific embodiments.The three-phase alternating-current motor star angle that the invention provides a kind of volume micro and Highgrade integration turns
Change trigger.
As it is shown in figure 1, a kind of three phase alternating current motor star angle switch starter that the present invention proposes, break including three group of three pole air
Road device, described three group of three pole air-break is that master switch chopper 1, star meet chopper 2 and corner connection chopper 3, institute respectively
State star to connect and be disposed with transducer 4 between chopper 2 and described corner connection chopper 3.
By a six types of severe debility disease drive shaft 5, described master switch chopper 1 and described star being connect chopper 2 to be concatenated, described master opens
Close chopper 1 and described star to connect the outside of chopper 2 and be provided with six types of severe debility disease co-acting lever 7, described master switch chopper 1 and described
Star connects and is not provided with dropout interlocking gear between chopper 2；By three grades of drive shafts 8, described corner connection chopper 3 is connected
Getting up, the outside of described corner connection chopper 3 is provided with three pole co-acting levers 10；One end of described six types of severe debility disease drive shaft is to described master
Till the outside of switch disconnector 1 (as shown in Figure 6), or one end of described six types of severe debility disease drive shaft is from described master switch chopper 1
After stretching out, driver 9 automatically controlled with described master is connected (as shown in Figure 1), and the other end of described six types of severe debility disease drive shaft 5 passes through described turn
Parallel operation 4 controls being switched on or switched off of described corner connection chopper 3；One end of described three pole drive shafts is to described corner connection chopper 3
Side till (as shown in Figure 6), or one end of described three pole drive shafts 8 from described corner connection chopper 3 stretch out after with automatically controlled
Driver 9 connects (as shown in Figure 1), and the other end of described three pole drive shafts 8 controls described star by described transducer 4 and connects
Being switched on or switched off of chopper 2.
Heretofore described six types of severe debility disease drive shaft 5 and described three grades of drive shafts 8 are square shaft.
(Fig. 3, Fig. 4 are the difference of transducer 4 internal structure as in figure 2 it is shown, described transducer under being in original state 4
Visual angle schematic diagram) include that housing, described housing are divided into two levels in a thickness direction, one of them level is near described star
Connecing the side of chopper 2, another level is near the side of described corner connection chopper 3；First-hand arbor it is provided with in described housing
Cam 4a, second handle axis cam 4b, the first dropout driving lever 4c and the second dropout driving lever 4d；Described first handle axis cam
The center of rotation of 4a and second handle axis cam 4b is provided with square hole respectively, as it is shown in figure 1, described first handle axis cam 4a
On square hole coordinate with described six types of severe debility disease drive shaft 5, the square hole on described second handle axis cam 4b and described three pole drive shafts 8
Coordinate.
As in figure 2 it is shown, described first dropout driving lever 4c and the second dropout driving lever 4d is arranged on housing by a bearing pin O,
First dropout driving lever 4c and the second dropout driving lever 4d is rotationally connected with described bearing pin O, as shown in Figure 2, Figure 3 and Figure 4, and institute
Stating the first dropout driving lever 4c and the second dropout driving lever 4d to arrange in chi structure on two levels, cross point is positioned at described first
Between Handle axis cam 4a (or second handle axis cam 4b) and described bearing pin O, described first handle axis cam 4a is to lean on
Nearly star connects chopper 2 side, and described second handle axis cam 4b is proximate to corner connection chopper 3 side；In an initial condition,
The outline that protrudes of described first handle axis cam 4a oppresses the upper end of described first dropout driving lever 4c, described second-hand's arbor
The depressed area outline of cam 4b contacts with the upper end of described second dropout driving lever 4d, is formed without compressing；Described
On one dropout driving lever 4c, it is being positioned at the first contact pilotage 4e that has of described bearing pin, on described second dropout driving lever 4d, being positioned at
That states bearing pin has the second contact pilotage 4f, and described first dropout driving lever 4c and the second dropout driving lever 4d submits at two levels
After fork, the bottom of the first dropout driving lever 4c is proximate to corner connection chopper 3 side, and the bottom of the second dropout driving lever 4d is proximate to star
Connecing chopper 2 side, therefore, described second contact pilotage 4f extend into described star and connects inside the tripping mechanism of chopper 2, described
First contact pilotage 4e extend into inside the tripping mechanism of described corner connection chopper 3；Described first contact pilotage 4e is used for controlling described corner connection
Being switched on or switched off of chopper 3, described second contact pilotage 4f connects being switched on or switched off of chopper 2 for controlling described star.This
In bright, the bossing of described first handle axis cam 4a and the bossing of described second handle axis cam 4b are right when installing
Claim to arrange, when described transducer 4 is original state, the bossing compressing described first of described first handle axis cam 4a
Dropout driving lever 4c, forces described first contact pilotage 4e thereon to withstand the tripping mechanism of described corner connection chopper 3, makes corner connection open circuit
Device 3 can not do combined floodgate ON Action；Synchronization, the bossing of described second handle axis cam 4b does not oppress described
Two dropout driving lever 4d, described second contact pilotage 4f disengaging thereon connects contacting of chopper 2 tripping mechanism with described star, not to star
The combined floodgate turn-on action connecing chopper 2 limits, and the arrangement of above-mentioned transducer 4 original state frame for movement ensure that first star
Connect the order of corner connection again, effectively prevent manual maloperation.
As in figure 2 it is shown, described transducer 4 is additionally provided with manual jerk mechanism, described manual jerk mechanism includes scram button
4g, scram button lock ring 4h and fork, described fork is fixed on housing by a pin, the one of described scram button 4g
End is positioned at the outside of described housing, and the other end of described scram button 4g contacts with one end swing arm of described fork, described fork
Other end swing arm simultaneously with described first dropout driving lever 4c and the lower contacts of the second dropout driving lever 4d；Described manual jerk machine
Structure can also include flexible axle structure 4i, is pacified by described scram button 4g and described scram button lock ring 4h by flexible axle structure 4i
Being contained on the guidance panel of machine, the other end of described scram button 4g contacts with one end swing arm of described fork.Described jerk
The effect of button lock ring 4h is to occur, at machine, the situation of stopping in emergency, by described scram button when described scram button 4g presses
Lock ring pins, and described chopper all can not close a floodgate conducting, just can unlock recovery after pending fault eliminating.
In the present invention, described first dropout driving lever 4d, between the second dropout driving lever 4c and described fork and housing, it is equipped with pulling force
Spring.
As it is shown in figure 1, in the present invention, be provided with three-phase current at the wiring window of the outfan of described master switch chopper 1
Monitoring induction coil 11, described induction coil 11 coordinates described master switch chopper 1 to current of electric exception, phase shortage, three-phase
Current imbalance rise monitoring and protective effect, when three electric current induction coils some, certain two or whole non-inductive time,
And the electric current of sensing is when occurring serious uneven, main automatically controlled driver can trigger whole star angle transducer power-off breaking automatically.
The operation principle of the present invention a kind of three phase alternating current motor star angle switch starter is: in order to ensure that the logic of whole startup is closed
System is correct, it may be assumed that the original state of trigger is the off-state of whole circuit；The order started must be that first star connects
Connect Angle connection repeatedly, after shutdown, return to original state.As it is shown in figure 1, present invention utilizes master switch chopper 1 and star
Connect the handle integrative-structure design of chopper 2, be i.e. by described master switch chopper 1 inside it by a six types of severe debility disease drive shaft 5
Connect chopper 2 with described star to be concatenated, form two groups of six types of severe debility disease choppers altogether, when wanting actuating motor, driven by master is automatically controlled
Dynamic device 6 drives six types of severe debility disease drive shaft or directly with hand propelled six types of severe debility disease co-acting lever 7, forms described master switch chopper 1 and described star
The linkage connecing chopper 2 is closed a floodgate, and as shown in Figure 7, Figure 8 and Figure 9, master switch chopper 1 is by three-phase electricity A, B, C even
Receiving the head end (U1, V1, W1) of three windings U, V, W of motor, tail end (U2, V2, W2) is by star chopper 2 (Y MCB)
Short circuit, constitutes the low voltage starting star circuit connection mode of a standard；Meanwhile, described drive shaft 5 drives first-hand arbor
The protruding parts of cam 4a and the upper end of the first dropout driving lever 4c disengage, the first contact pilotage on the first dropout driving lever 4c
4e relieves the combined floodgate of diametrical connection chopper 3 and limits.When after rotor smooth running, corner connection chopper 3 (△ MCB)
Starting to close a floodgate, corner connection chopper 3 is made up of three-pole breaker, and inside is also to be concatenated by three pole drive shafts 8, and corner connection is broken
After road device 3 feed motion starts, it is de-that described drive shaft 8 drives the protruding parts of second handle axis cam 4b to start to oppress second
Button driving lever 4d upper end, the second contact pilotage 4f on the second dropout driving lever 4d starts to fire described star and connects the dropout machine of chopper 2
Structure, makes star connect chopper 2 and disconnects so that the present invention ensure that in frame for movement three pairs of contacts of corner connection chopper 3 are connecing
Before conjunction, star connects chopper 2 and disconnects in advance, motor at this moment after of short duration power-off inertia runs, corner connection chopper 3
Quickly connecting, motor enters normal high pressure (line voltage) operating condition.
The work process of three phase alternating current motor star angle of the present invention switch starter is as follows:
1, motor Y-connection low voltage starting: master control driver 6 starts to drive six types of severe debility disease drive shaft 5 to rotate, or the most direct
Pulling six types of severe debility disease co-acting lever 7 to close a floodgate, main circuit is connected, three winding tail ends short circuit (linking together) of motor, and motor realizes
Y-connection low-pressure operation.Meanwhile, six types of severe debility disease drive shaft 5 drive first handle axis cam 4a (with Fig. 2 projecting direction as base
Plinth) positive hour hands rotation so that the protruding parts of first handle axis cam 4a is converted into first with the first contacting of dropout driving lever 4c
The depressed area of Handle axis cam 4a contacts with the first dropout driving lever 4c's, and described first dropout driving lever 4c is released from compressing,
First contact pilotage 4e returns to unlocked position (this unblock is that the releasing combined floodgate for corner connection chopper 3 limits).
2, motor is transformed into normal high pressure delta connection state: after motor low pressure Y-connection smooth running, automatically controlled
Driver 9 starts to drive three pole drive shafts 8 to rotate, or manually directly pulls three pole co-acting levers 10 and close a floodgate, with three poles connection
Three pole drive shafts 8 of fixed handle 10 linkage drive second handle axis cam 4b so that the protuberance of second handle axis cam 4b
Position presses the upper end of the second dropout driving lever 4d, causes the second contact pilotage 4f on described dropout driving lever 4d to trigger star and connects chopper
The tripping mechanism of 2, this moment, the feed motion of three pole co-acting levers 10 is still in the middle of the halfway of motion, but the second contact pilotage 4f is
Disconnect through star being connect the contact of chopper 2, although now motor winding loop is cut off, due to rotor and plant equipment
Effect of inertia, motor the most completely by inertia in operating, this of short duration power-off interval is necessary, from frame for movement
Ensure that the order of two kinds of winding connections.Motor is after of short duration power-off coasting, and quickly three pole co-acting levers 10 close a floodgate
Action is fully completed, and motor winding achieves triangle and connects, and motor enters normal high pressure corner connection running status.Here need
To be illustrated is, although this clock star connects chopper 2 breaking, but from the appearance less than handle breaking, its handle
Being to be connected as a single entity with master switch chopper 1, master switch chopper 1 is still within closing position, and this is owing to star connects chopper 2
And the interlocking mechanism that do not threads off between master switch chopper 1, even if described star connects chopper 2 and threads off breaking, master switch open circuit
It is the most only that inside contact disconnects that device 1 remains in that "on" position, described star connect the breaking of chopper 2.
3, motor shuts down: needing to cut off motor power when work stopping or machine run into emergency, the present invention is permissible
Realized by several ways.The first, main automatically controlled driver 6 is internally provided with electromagnetic release mechanism, can by wired or
Wireless stop button, triggers master switch chopper 1 electromagnetic trip breaking, simultaneously by six types of severe debility disease drive shaft 5, first-hand arbor
Cam 4a, the first dropout driving lever 4c, the first contact pilotage 4e, triggering corner connection chopper 3 tripping mechanism breaking together；The second,
Pressing manual scram button 4g or 4i, by pressing scram button 4g or 4i, promote fork, fork drives first to take off simultaneously
Button driving lever 4d and the second dropout driving lever 4c rotates counterclockwise so that 4e and 4f on described dropout driving lever moves right, and triggers
Star connects chopper 2 and corner connection chopper 3 is threaded off simultaneously breaking, three winding circuits of motor are the most cut-off, electric current induction coil
11 is non-inductive, and master control driver triggers master switch chopper 1 electromagnetic trip breaking automatically；The third, the most manually pull down six
Pole co-acting lever 7, as it was previously stated, except described six grades of linked circuit breaker breaking itself, also by described six types of severe debility disease drive shaft 5,
First handle axis cam 4a, the first dropout driving lever 4c, the first contact pilotage 4e, trigger described corner connection chopper 3 and thread off, finally make
Obtain three groups of totally nine pole choppers whole breaking power-off.
4, original state is recovered: through above-mentioned process 3, motor shuts down, and all choppers empty back into open position,
Now, the first handle axis cam 4a (based on Fig. 2 projecting direction) within transducer 4, by rotating counterclockwise, makes
The protruding parts of first handle axis cam 4a contacts with the first dropout driving lever 4c upper end and (i.e. oppresses the first dropout driving lever 4c
Position), the first contact pilotage 4e on the first dropout driving lever 4c moves right and returns to withstand the tripping mechanism of corner connection chopper 3, makes
Obtain corner connection chopper 3 can not close a floodgate in original state；In like manner, owing to corner connection chopper 3 has returned to open position, second-hand
Arbor cam 4b is by rotating counterclockwise so that the depressed area of second handle axis cam 4b and the second dropout driving lever 4d upper end
Portion contacts, and releases the compressing to the second dropout driving lever 4d, and the second contact pilotage 4f thereon, to moving to left, departs from and connects chopper 2 with star
The contact of tripping mechanism, thus when ensure that the next program of startup, must be master switch chopper 1 and star connects chopper 2
Link combined floodgate in advance.
The present invention gives the economical scheme removing automatically controlled (main automatically controlled driver 6 and automatically controlled driver 9) part, such as figure
Shown in 6, completely by manual operation, carry out the conversion of star angle with vision.
Although above in conjunction with accompanying drawing, invention has been described, but the invention is not limited in above-mentioned detailed description of the invention,
Above-mentioned detailed description of the invention is only schematic rather than restrictive, and those of ordinary skill in the art is in the present invention
Enlightenment under, without deviating from the spirit of the invention, it is also possible to make many variations, these belong to the guarantor of the present invention
Within protecting.
Claims (6)
1. a three phase alternating current motor star angle switch starter, including three group of three pole air-break, described three group of three pole air
Chopper is that master switch chopper (1), star connect chopper (2) and corner connection chopper (3) respectively；It is characterized in that:
By a six types of severe debility disease drive shaft (5), described master switch chopper (1) and described star are connect chopper (2) to be concatenated,
Described master switch chopper (1) and described star connect the outside of chopper (2) and are provided with six types of severe debility disease co-acting lever (7), described master
Switch disconnector (1) and described star connect and are not provided with dropout interlocking gear between chopper (2)；
By one three grades drive shafts (8), described corner connection chopper (3) is together in series, outside described corner connection chopper (3)
Portion is provided with three pole co-acting levers (10)；
Described star connects and is disposed with transducer (4) between chopper (2) and described corner connection chopper (3)；
One end of described six types of severe debility disease drive shaft (5) to the outside of described master switch chopper (1), described six types of severe debility disease drive shaft
(5) the other end is connected with the first handle axis cam in described transducer (4)；
One end of described three pole drive shafts (8) to the side of described corner connection chopper (3), described three pole drive shafts (8)
The other end and described transducer (4) in second handle axis cam even.
Three phase alternating current motor star angle switch starter the most according to claim 1, it is characterised in that: this trigger also includes
It is arranged on the automatically controlled driver of the master (6) in described master switch chopper (1) outside and is arranged on described corner connection chopper (3) outward
The automatically controlled driver (9) of side；
Rear and the automatically controlled driver of described master (6) are stretched out from described master switch chopper (1) in one end of described six types of severe debility disease drive shaft (5)
Connect；Rear and described automatically controlled driving is stretched out in one end of described three pole drive shafts (8) from the outside of described corner connection chopper (3)
Device (9) connects.
A kind of three phase alternating current motor star angle the most according to claim 1 or claim 2 switch starter, it is characterised in that
Described six types of severe debility disease drive shaft (5) and described three grades of drive shafts (8) are square shaft；
Described transducer (4) includes that housing, described housing are divided into two levels in a thickness direction, and one of them level is close
Described star connects the side of chopper (2), and another level is near the side of described corner connection chopper (3)；Set in described housing
Described first handle axis cam (4a), described second handle axis cam (4b), the first dropout driving lever (4c) and second is had to thread off
Driving lever (4d)；Described first handle axis cam (4a) and the center of rotation side of being provided with respectively of second handle axis cam (4b)
Hole, the square hole on described first handle axis cam (4a) coordinates with described six types of severe debility disease drive shaft (5), described second handle crown of roll
Square hole on wheel (4b) coordinates with described three pole drive shafts (8)；
Described first dropout driving lever (4c) and the second dropout driving lever (4d) are arranged on housing by bearing pin (O), and first takes off
Button driving lever (4c) and the second dropout driving lever (4d) are rotationally connected with described bearing pin, described first dropout driving lever (4c) and second
Dropout driving lever (4d) is arranged in chi structure on two levels, and cross point is positioned at described Handle axis cam (4a) or (4b)
And between described bearing pin (O)；
The outline of described first handle axis cam (4a) and the upper end contoured fit of described first dropout driving lever (4c), institute
State the outline of second handle axis cam (4b) and the upper end contoured fit of described second dropout driving lever (4d)；Described
On one dropout driving lever (4c), have the first contact pilotage (4e), described second dropout driving lever be positioned at described bearing pin (O)
(4d) on, having the second contact pilotage (4f) be positioned at described bearing pin (O), described second contact pilotage (4f) extend into described
Star connects inside the tripping mechanism of chopper (2), and described first contact pilotage (4e) extend into the dropout of described corner connection chopper (3)
In-house；Described second contact pilotage (4f) is used for triggering described star and connects the dropout breaking of chopper (2), described first contact pilotage
(4e) it is used for triggering the dropout breaking of described corner connection chopper (3)；
Described transducer (4) is additionally provided with manual jerk mechanism, and described manual jerk mechanism includes scram button (4g), urgency
Stopping button lock ring (4h) and fork, described fork is fixed on housing by a pin, the one of described scram button (4g)
End is positioned at the outside of described housing, and the other end of described scram button (4g) contacts with one end swing arm of described fork, described
The other end swing arm of fork contacts with the bottom of described first dropout driving lever (4c) and the second dropout driving lever (4d) simultaneously；
Described first dropout driving lever (4c), between the second dropout driving lever (4d) and described fork and housing, it is equipped with tension spring.
A kind of three phase alternating current motor star angle switch starter, it is characterised in that described first-hand
The bossing of arbor cam (4a) and the bossing of described second handle axis cam (4b) are arranged symmetrically when installing, when
When described transducer (4) is original state, the bossing compressing described first of described first handle axis cam (4a) is threaded off
The upper end of driving lever (4c), makes described first contact pilotage (4e) on described first dropout driving lever (4c) be in the described angle of restriction
Connect chopper (3) and connect the position closed a floodgate；Synchronization, the female of described second handle axis cam (4b) is with described
The upper end contact of the second dropout driving lever (4d), makes described second contact pilotage (4f) place on described second dropout driving lever (4d)
In the position that described star is connect chopper (2) unrestricted combined floodgate.
A kind of three phase alternating current motor star angle switch starter, it is characterised in that described manual urgency
Stop mechanism includes flexible axle structure (4i), described scram button (4g) and described scram button is locked by flexible axle structure (4i)
Ring (4h) is arranged on the guidance panel of machine, and the other end of described scram button (4g) is provided with and one end of described fork
The connecting rod of swing arm contact.
Three phase alternating current motor star angle the most according to claim 1 or claim 2 switch starter, it is characterised in that described master switch
Three-phase current monitoring induction coil (11), described induction coil (11) it is provided with at the wiring window of the outfan of chopper (1)
Coordinate described master switch chopper (1) that current of electric exception, phase shortage, three-phase current unbalance are risen monitoring and protective effect.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370819.6A CN105978406B (en) | 2016-05-27 | 2016-05-27 | Three phase alternating current motor star angle switch starter |
| PCT/CN2017/085646 WO2017202327A1 (en) | 2016-05-27 | 2017-05-24 | Star-delta switching starter for three-phase alternating-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610370819.6A CN105978406B (en) | 2016-05-27 | 2016-05-27 | Three phase alternating current motor star angle switch starter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105978406A true CN105978406A (en) | 2016-09-28 |
| CN105978406B CN105978406B (en) | 2018-06-01 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610370819.6A Active CN105978406B (en) | 2016-05-27 | 2016-05-27 | Three phase alternating current motor star angle switch starter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105978406B (en) |
| WO (1) | WO2017202327A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499615A (en) * | 2016-12-27 | 2017-03-15 | 北京中科三正电气有限公司 | The switch board of the manually operated mechanical device that there is fire pump star angle to start |
| WO2017202327A1 (en) * | 2016-05-27 | 2017-11-30 | 天津加美特电气设备有限公司 | Star-delta switching starter for three-phase alternating-current motor |
| CN109360754A (en) * | 2018-11-06 | 2019-02-19 | 安士缔(中国)电气设备有限公司 | A kind of star triangle electric loop operating device applied to two breakers |
| CN112768277A (en) * | 2021-01-11 | 2021-05-07 | 嘉兴京硅智能技术有限公司 | Intelligent circuit breaker emergency stop device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108155069B (en) * | 2018-02-09 | 2023-11-17 | 浙江德菱科技股份有限公司 | Reclosing miniature circuit breaker |
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| DE2006147B2 (en) * | 1970-02-11 | 1978-03-02 | Maerkische Elektro-Industrie Adolf Vedder Kg, 5890 Schalksmuehle | Star-delta switch which automatically changes from delta to star - operates when built-in on=off switch turns off and puts spring under tension |
| EP0001208A1 (en) * | 1977-08-12 | 1979-04-04 | Motomu Miyamoto | Star-delta change-over switch |
| CN1354885A (en) * | 1999-05-11 | 2002-06-19 | 株式会社因特文讯 | Magnetic contactor for star-delta connections |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017202327A1 (en) * | 2016-05-27 | 2017-11-30 | 天津加美特电气设备有限公司 | Star-delta switching starter for three-phase alternating-current motor |
| CN106499615A (en) * | 2016-12-27 | 2017-03-15 | 北京中科三正电气有限公司 | The switch board of the manually operated mechanical device that there is fire pump star angle to start |
| CN109360754A (en) * | 2018-11-06 | 2019-02-19 | 安士缔(中国)电气设备有限公司 | A kind of star triangle electric loop operating device applied to two breakers |
| CN109360754B (en) * | 2018-11-06 | 2024-01-19 | 安士缔(中国)电气设备有限公司 | Star-delta electric loop operation device applied to two circuit breakers |
| CN112768277A (en) * | 2021-01-11 | 2021-05-07 | 嘉兴京硅智能技术有限公司 | Intelligent circuit breaker emergency stop device |
| CN112768277B (en) * | 2021-01-11 | 2023-07-04 | 嘉兴京硅智能技术有限公司 | Intelligent breaker emergency stop device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105978406B (en) | 2018-06-01 |
| WO2017202327A1 (en) | 2017-11-30 |
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Address after: 300402 Tianjin Kelin Mould Technology Co., Ltd., Xiaodian Industrial Zone, Beichen District, Tianjin Patentee after: Tianjin jiameite Electric Co.,Ltd. Address before: 300402 Tianjin Kelin Mould Technology Co., Ltd., Xiaodian Industrial Zone, Beichen District, Tianjin Patentee before: TIANJIN JIAMEITE ELECTRICAL EQUIPMENT Co.,Ltd. |