CN207780583U - A kind of soft straight starting device of multivoltage - Google Patents
A kind of soft straight starting device of multivoltage Download PDFInfo
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- CN207780583U CN207780583U CN201820046659.4U CN201820046659U CN207780583U CN 207780583 U CN207780583 U CN 207780583U CN 201820046659 U CN201820046659 U CN 201820046659U CN 207780583 U CN207780583 U CN 207780583U
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- 239000007858 starting material Substances 0.000 claims abstract description 49
- 230000001681 protective effect Effects 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 12
- 230000009466 transformation Effects 0.000 claims abstract description 3
- 239000006096 absorbing agent Substances 0.000 claims description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 26
- 229910052710 silicon Inorganic materials 0.000 claims description 26
- 239000010703 silicon Substances 0.000 claims description 26
- 230000007935 neutral effect Effects 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 6
- 238000005286 illumination Methods 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
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Abstract
A kind of soft straight starting device of multivoltage of the utility model belongs to the soft straight starting device technical field of multivoltage；Technical problem to be solved is：It provides one kind power transformation can be become one with soft starting and protective device, Unified Data Transport mode exports most threshold voltages, the soft straight starting device of the good multivoltage of soft start effect；Solve the technical solution that the technical problem uses for：The power input of the soft straight starter of low-pressure side is connected by twin voltage phase shifting transformer with high voltage distribution installation；The first voltage output end of twin voltage phase shifting transformer is connected with the first earth leakage protective device successively and after connecing the input terminal of the input terminal of the first soft starter device, the second soft starter device；The second voltage output end of twin voltage phase shifting transformer is connected with the second earth leakage protective device successively and after connecing the input terminal of the input terminal of the first straight starting device, the input terminal of the second straight starting device, the input terminal of the straight starting device of third, the input terminal of lighting device, master control transformer；The utility model is applied in mine distribution environment.
Description
Technical field
A kind of soft straight starting device of multivoltage of the utility model belongs to the soft straight starting device technical field of multivoltage.
Background technology
Belt below mine electrical-mechanical controls chamber narrow space at present, and electrical control equipment type and quantity are more, and mutually
Between cabling it is complicated and in disorder, scene except the mobile substation that need to configure a set of 1140V, 1200KVA, a set of 660V,
The mobile substation of 630KVA, mobile substation include high voltage distribution installation, phase shifting transformer, low-voltage variation case, it is also necessary to be matched
The feeding switch of three 400A, two 400A soft straters, three 200A monomers switches and an illumination integrated protection device, these set
It also needs to that different size model, the anti-explosion electric cable of different length is used to be attached between standby, all cables and control signal wire
Easily intersect and cause confusion, so that circuit is arranged more difficult.
On the other hand, if the equipment quantity of setting is more, line complexity, narrow space can be caused so that power supply unit
It is difficult to overhaul and investigate；Using the mobile substation of fission design, soft strater, feeding switch, monomer switch, illumination integral
It the devices facility such as protects when mounted, needs that user oneself connects large number of power cable and signal is led between these equipment
Line, installation process is time-consuming and laborious, and is easy error, and at the workplace for switching control panel, and needs first to lead these
Line is removed, and is moved respectively to behind new job site the connection of full recovery again, the installation of device and service efficiency can be caused low, manage
It is higher to manage cost.
Since the manufacturer of each equipment such as substation, power distribution equipment, guard box, soft strater is different, product quality
Irregular, also difference is larger for the signal communication agreement and communication modes used, and it is big to be incorporated to looped network difficulty, also cannot achieve at present
Data are unified to be uploaded, and the unified monitoring inside control room, poor reliability are can not achieve.
Utility model content
The utility model overcomes the shortcomings of the prior art, technical problem to be solved to be：There is provided one kind can incite somebody to action
Power transformation becomes one with soft starting and protective device, Unified Data Transport mode, exports most threshold voltages, soft start effect
The good soft straight starting device of multivoltage；In order to solve the above technical problems, the technical solution adopted in the utility model is：It is a kind of mostly electric
Soft straight starting device, including the soft straight starter of low-pressure side, the power input of the soft straight starter of low-pressure side is pressed to pass through double electricity
Pressure phase shifting transformer is connected with high voltage distribution installation；
The soft straight starter of low-pressure side includes the first soft starter device, the second soft starter device, the first earth leakage protective dress
It sets, the first voltage output end of the twin voltage phase shifting transformer successively and connects the input terminal of the first soft starter device, second soft
It is connected with the first earth leakage protective device after the input terminal of starting device；
The soft straight starter of low-pressure side further includes that the first straight starting device, the second straight starting device, third directly start dress
It sets, lighting device, master control transformer and the second earth leakage protective device, the second voltage output end of the twin voltage phase shifting transformer
Successively and connect the input terminal of the first straight starting device, the input terminal of the second straight starting device, the straight starting device of third input terminal,
It is connected with the second earth leakage protective device after the input terminal of lighting device, the input terminal of master control transformer；
The circuit structure of first soft starter device and the second soft starter device is：
The first voltage output end of the twin voltage phase shifting transformer successively and connects one end of disconnecting switch Q101, main line mistake
Voltage absorber A101, the input terminal of voltage transformer P1, disconnecting switch Q201 one end after with three-phase reactor L101 one
End is connected, and the other end neutral point of the three-phase reactor L101 is connected with the first earth leakage protective device；
The other end of the disconnecting switch Q101 is sequentially connected in series main line current transformer T101, silicon-controlled JZGZ1, vacuum and connects
It is connected with motor M1 after tentaculum K111, current transformer T111；
The both ends of the silicon-controlled JZGZ1 also and be connected to branch line overvoltage absorber A111, the silicon-controlled JZGZ1 with it is true
The device both ends of empty contactor K111 composition also and are connected to vacuum contactor K121；
The signal input part of the current transformer T111 is also associated with soft controller MX1, the soft controller MX1
Signal output end be connected with display XS1；
The firing line of the silicon-controlled JZGZ1 is also connected with the triggering end of soft controller MX1；
Branch line overvoltage absorber A121 is also associated on line between the current transformer T111 and motor M1；
The output end of the voltage transformer P1 is connected with collection of simulant signal device；
The other end of the disconnecting switch Q201 is sequentially connected in series main line current transformer T201, silicon-controlled JZGZ2, vacuum and connects
It is connected with motor M2 after tentaculum K211, current transformer T211；
The both ends of the silicon-controlled JZGZ2 also and be connected to branch line overvoltage absorber A211, the silicon-controlled JZGZ2 with it is true
The device both ends of empty contactor K211 composition also and are connected to vacuum contactor K221；
The signal input part of the current transformer T211 is also associated with soft controller MX2, the soft controller MX2
Signal output end be connected with display XS2；
The firing line of the silicon-controlled JZGZ2 is also connected with the triggering end of soft controller MX2；
Branch line overvoltage absorber A221 is also associated on line between the current transformer T211 and motor M2.
The circuit structure of the first straight starting device, the second straight starting device, third straight starting device and lighting device
For：
The second voltage output end of the twin voltage phase shifting transformer successively and connects one end of disconnecting switch Q301, main line mistake
Voltage absorber A301, the input terminal of auxiliary supply transformer T205, upper electrical switch Q001 one end after with three-phase reactor
One end of L301 is connected, and the other end neutral point of the three-phase reactor L301 is connected with the second earth leakage protective device；
The other end of the disconnecting switch Q301 is connected with one end of main line current transformer T301, and the main line electric current is mutual
The other end of sensor T301 successively and connects one end of vacuum contactor K311, behind one end of vacuum contactor K321 with vacuum contact
One end of device K331 is connected；
It is connected with motor M3 after the other end concatenation current transformer T311 of the vacuum contactor K311, the electric current is mutual
Branch line overvoltage absorber A311 is also associated on line between sensor T311 and motor M3；
It is connected with motor M4 after the other end concatenation current transformer T321 of the vacuum contactor K321, the electric current is mutual
Branch line overvoltage absorber A321 is also associated on line between sensor T321 and motor M4；
It is connected with motor M5 after the other end concatenation current transformer T331 of the vacuum contactor K331, the electric current is mutual
Branch line overvoltage absorber A331 is also associated on line between sensor T331 and motor M5；
After the output end concatenation accessory power supply contactor K511 of the auxiliary supply transformer T205 with auxiliary current mutual inductance
One end of device T511 is connected, the other end of the auxiliary current transformer T511 and connect behind one end of two-phase reactor L511 with photograph
Bright lamp is connected, and the other end of the two-phase reactor L511 is connected with earth leakage protective device LB511；
The other end of the upper electrical switch Q001 is connected with the input terminal of master control transformer.
The first voltage output end output voltage of the twin voltage phase shifting transformer is 1140V, twin voltage phase shifting transformer
Second voltage output end output voltage be 660V.
First soft starter device, the second soft starter device, the first straight starting device, the second straight starting device, third
Straight starting device, lighting device signal output end be also connected with PLC controller by signal conductor.
What the utility model had compared with the existing technology has the beneficial effect that：The utility model installation is applied to containing explosion
Property hazardous gas and coal dust mine in, can rated voltage be 1140V, 660V, 127V supply line in, can be to work
Make live heavy-duty motor and carry out soft-start operation, while can be underground low-power electrical device, lighting system, at signal transmission
Manage device and power supply be provided, the utility model is mounted between high-voltage switch gear and load electrical appliance, can to different rated voltages and
A variety of loads of power, different function carry out centralized control and management；The utility model is simple in structure, small, can be effective
Occupied space is reduced, installation and debugging are convenient, are convenient for management service, data transmission is reliable and stable, feature-rich and at low cost, can push away
It is wide to use.
Description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the electrical block diagram of the utility model；
Fig. 2 is the electrical block diagram of the utility model soft starter device；
Fig. 3 is the electrical block diagram of the utility model straight starting device and lighting device；
In figure：1 it is the soft straight starter of low-pressure side, 2 be twin voltage phase shifting transformer, 3 be high voltage distribution installation, 4 is first
Soft starter device, 5 be the second soft starter device, 6 be the first earth leakage protective device, 7 be the first straight starting device, 8 be second straight
Starting device, 9 be the straight starting device of third, 10 be lighting device, 11 be master control transformer, 12 be the second earth leakage protective device.
Specific implementation mode
As shown in Figure 1 to Figure 3, the soft straight starting device of a kind of multivoltage of the utility model, including the soft straight starter of low-pressure side
1, the power input of the soft straight starter of the low-pressure side 1 is connected by twin voltage phase shifting transformer 2 with high voltage distribution installation 3；
The soft straight starter 1 of low-pressure side includes the first soft starter device 4, the second soft starter device 5, the first earth leakage protective
Device 6, the first voltage output end of the twin voltage phase shifting transformer 2 successively and connect the input terminal of the first soft starter device 4,
It is connected with the first earth leakage protective device 6 after the input terminal of two soft starter devices 5；
The soft straight starter of the low-pressure side 1 further includes that the first straight starting device 7, the second straight starting device 8, third directly start
Device 9, lighting device 10, master control transformer 11 and the second earth leakage protective device 12, the second of the twin voltage phase shifting transformer 2
Voltage output end successively and connects the input terminal of the first straight starting device 7, the input terminal of the second straight starting device 8, third and directly starts
The input terminal of device 9, the input terminal of lighting device 10, master control transformer 11 input terminal after with 12 phase of the second earth leakage protective device
Even；
The circuit structure of first soft starter device, 4 and second soft starter device 5 is：
The first voltage output end of the twin voltage phase shifting transformer 2 successively and connects one end of disconnecting switch Q101, main line
Surge absorber A101, the input terminal of voltage transformer P1, disconnecting switch Q201 one end after with three-phase reactor L101's
One end is connected, and the other end neutral point of the three-phase reactor L101 is connected with the first earth leakage protective device 6；
The other end of the disconnecting switch Q101 is sequentially connected in series main line current transformer T101, silicon-controlled JZGZ1, vacuum and connects
It is connected with motor M1 after tentaculum K111, current transformer T111；
The both ends of the silicon-controlled JZGZ1 also and be connected to branch line overvoltage absorber A111, the silicon-controlled JZGZ1 with it is true
The device both ends of empty contactor K111 composition also and are connected to vacuum contactor K121；
The signal input part of the current transformer T111 is also associated with soft controller MX1, the soft controller MX1
Signal output end be connected with display XS1；
The firing line of the silicon-controlled JZGZ1 is also connected with the triggering end of soft controller MX1；
Branch line overvoltage absorber A121 is also associated on line between the current transformer T111 and motor M1；
The output end of the voltage transformer P1 is connected with collection of simulant signal device；
The other end of the disconnecting switch Q201 is sequentially connected in series main line current transformer T201, silicon-controlled JZGZ2, vacuum and connects
It is connected with motor M2 after tentaculum K211, current transformer T211；
The both ends of the silicon-controlled JZGZ2 also and be connected to branch line overvoltage absorber A211, the silicon-controlled JZGZ2 with it is true
The device both ends of empty contactor K211 composition also and are connected to vacuum contactor K221；
The signal input part of the current transformer T211 is also associated with soft controller MX2, the soft controller MX2
Signal output end be connected with display XS2；
The firing line of the silicon-controlled JZGZ2 is also connected with the triggering end of soft controller MX2；
Branch line overvoltage absorber A221 is also associated on line between the current transformer T211 and motor M2.
The circuit of the first straight starting device 7, the second straight starting device 8, third straight starting device 9 and lighting device 10
Structure is：
The second voltage output end of the twin voltage phase shifting transformer 2 successively and connects one end of disconnecting switch Q301, main line
Surge absorber A301, the input terminal of auxiliary supply transformer T205, upper electrical switch Q001 one end after with three-phase reactor
One end of L301 is connected, and the other end neutral point of the three-phase reactor L301 is connected with the second earth leakage protective device 12；
The other end of the disconnecting switch Q301 is connected with one end of main line current transformer T301, and the main line electric current is mutual
The other end of sensor T301 successively and connects one end of vacuum contactor K311, behind one end of vacuum contactor K321 with vacuum contact
One end of device K331 is connected；
It is connected with motor M3 after the other end concatenation current transformer T311 of the vacuum contactor K311, the electric current is mutual
Branch line overvoltage absorber A311 is also associated on line between sensor T311 and motor M3；
It is connected with motor M4 after the other end concatenation current transformer T321 of the vacuum contactor K321, the electric current is mutual
Branch line overvoltage absorber A321 is also associated on line between sensor T321 and motor M4；
It is connected with motor M5 after the other end concatenation current transformer T331 of the vacuum contactor K331, the electric current is mutual
Branch line overvoltage absorber A331 is also associated on line between sensor T331 and motor M5；
After the output end concatenation accessory power supply contactor K511 of the auxiliary supply transformer T205 with auxiliary current mutual inductance
One end of device T511 is connected, the other end of the auxiliary current transformer T511 and connect behind one end of two-phase reactor L511 with photograph
Bright lamp is connected, and the other end of the two-phase reactor L511 is connected with earth leakage protective device LB511；
The other end of the upper electrical switch Q001 is connected with the input terminal of master control transformer 11.
The first voltage output end output voltage of the twin voltage phase shifting transformer 2 is 1140V, twin voltage phase shifting transformer
2 second voltage output end output voltage is 660V.
First soft starter device 4, the second soft starter device 5, the first straight starting device 7, the second straight starting device 8,
The straight starting device 9 of third, lighting device 10 signal output end be also connected with PLC controller by signal conductor.
The utility model passes through the high voltage distribution installation 3 of one 6KV, 400A specification of setting, pair of a 1600KVA specification
Voltage phase shifting transformer 2, the transformer have output two kinds of voltage functions of 1140V, 660V, the low-pressure side of a 1200A specification
The demand to soft straight starting device under mine may be implemented in soft straight starter 1；Above-mentioned three table apparatus is debugged by design, with method
Blue hardwired form fits together, and the physical size requirements being assembled into one are：Long 5700 wide 1200 is 1665 millimeters high, whole
A apparatus structure is simple, small volume, can be moved to underground coal mine phase by the way that corresponding mobile device such as idler wheel is arranged
The distribution place answered.
The utility model can substitute a set of soft straight activation system that current underground uses, which includes a set of
The mobile substation of 1140V, 1200KVA specification, the mobile substation of a set of 660V, 630KVA specification, above-mentioned mobile substation
Further include the devices such as high voltage distribution installation, phase shifting transformer, low-voltage variation case, three 400A feeding switch, two 400A are soft opens
Dynamic device, three 200A monomers switches and an illumination integrated protection may be omitted with using the utility model between above-mentioned separate devices
Connecting cable, reduce rigging up and debugging workload and replace workplace difficulty.
Whole device configures the disconnecting switch of 3 400A, 1140V specifications altogether, and wherein disconnecting switch Q101, Q201 is kept apart
The voltage class of pass is 1140V, and the voltage class of disconnecting switch Q301 is 660V；
In the first soft starter device 4, the second soft starter device 5, it is each provided with a set of soft start component, including one group
Silicon-controlled, the AC vacuum contactor of two 400A, 1140V specifications of 1250A, 1140V specification, the mistake of a set of 1140V specifications
Voltage absorber, a set of 2640:1 current transformer；It is directly risen in the first straight starting device 7, the second straight starting device 8, third
There are three contactor circuits for setting in dynamic device 9, include the AC vacuum contactor of three 160A, 1140V specifications, three sets excessively electric
Pressure absorber, three set 200:1 current transformer；
In addition the utility model is designed with accessory power supply circuit all the way：Including one group of 127V floor lights control electricity of configuration
Source, capacity 4000VA are additionally provided with 1140V and become 127V capacity as 4000VA transformers, model 3TF46's
A.C. contactor, a set of 30:1 current transformer and a 127V earth leakage protective device.
Soft 1 power input of straight starter of low-pressure side of the utility model takes over two groups from twin voltage phase shifting transformer 2
Power cord, respectively 1140V, 1200KVA power end and 660V, 400KVA power end, from phase shifting transformer to low tension switch every
It leaves and puts this section of line into using plug-in unit protection, action sensitivity is high, and protection is reliable；Phase shifting transformer docks place with low tension switch
There are the flame proof windows convenient for wiring and maintenance, usually fasten Explosion-proof cap with bolt, can be removed when needing.
Three road 660V being arranged in the straight starting device of the first straight starting device 7, the second straight starting device 8, third 9 are straight
It is single machine independent operating to play circuit, and with other circuits without linkage relationship, control mode is terminal row wiring remote control, auxiliary electricity
With other circuits without linkage relationship, control mode is that switch setting button directly controls in the source circuits 127V；
The soft circuits of opening two-way 1140V being arranged in first soft starter device, 4 and second soft starter device 5 provide single machine
Independent, two kinds of control modes of chain control, chain control be divided into for open with two kinds of delayed startup, start-up time delay is adjustable,
When it is soft open function and break down when, can directly control bypass contactor by PLC by setting and throw soft controller MX2 control away
Making sheet carries out emergency starting, and current protecting function is by being arranged in disconnecting switch outgoing line side to the soft electric current opened on component lines at this time
Mutual inductor coordinates PLC to realize.
The two-way of the utility model setting is soft to open circuit and the three road circuits Zhi Qi, is realized except through terminal row wiring long-range
Control is outer, also switch point operation control on the spot can be realized by parameter setting, mainly for equipment debugging, maintenance, motor installation, examination
It is used when turning, is single machine independent operating without chain logical relation between each circuit when controlling on the spot.
It carries out being provided with data communication interface, key data pair on the PLC control devices of data exchange with the utility model
Outer opening, can be by the parameter of whole system, including setting, loop works state, and fault message etc. uploads to host computer progress
Monitoring；The utility model can be small as one of automated mine branch access looped network, may be implemented pair to set by network
The modification of standby parameter, controls start and stop.
The soft straight starter of the low-pressure side 1 has following function：
Pass through setting 400:1.2 current transformer forms protection system with electric current protective plug-in unit, when phase shifting transformer goes out
Line side electric current can act rapidly cutoff high when excessive, two groups of power supplys of 1140V, 660V respectively match one group of protective plug-in unit and electric current is mutual
Sensor so that the threshold value of protection act can be combined by adjusting the knob on plug-in unit and be set；
Major loop creepage protection function is to realize that specific implementation is to use earth leakage protective by additional DC detecting
Plug-in unit carries out resistance value over the ground by the neutral point that three-phase reactor is drawn to total loop and detects, and additional DC voltage 42V works as inspection
It measures line-to-ground insulation resistance value and drops to 24K（1140V）13K（660V）When, plug-in unit internal relay snap action（100ms
Within）, high side switch is disconnected, and show failure.Subsidiary loop creepage protection function is also to be realized by additional DC detecting,
General principles are same as above, and protection act value is that circuit is less than 3K over the ground, and current failure accessory power supply is only disconnected when leaking electricity and occurring and is returned
Road；
Soft circuit, straight circuit and the lighting loop of opening is uniformly controlled by using PLC, and is realized to directly rising back
The short circuit of road and lighting loop, the monitoring and protection of overload, the states such as phase, imbalance, earth leakage search/lockout of breaking, and status information is shown
Show on a display screen；It is soft open circuit and can be realized using soft controller MX2 types control panel triggered to silicon-controlled, control contact
Device throws bypass, and realizes the various defencive functions such as overload, disconnected phase, imbalance, short circuit to this soft circuit of opening, and by specifying information
It is shown on two attached screens of black and white.
When specifically used, circuit, the short circuit at disconnecting switch, overload, disconnected phase, unbalance protection are directly played, is to pass through
120:1 and 400:1.2 current transformer acquisition current signal simultaneously be transferred in the subsequent current signal modules of PLC, then with
The circuit rated current set in the CPU programs of PLC is compared, and carries out circuit separating brake to realize；Lighting loop, electric current are mutual
Sensor is 30:1 single-phase transformers, without phase, the unbalance protection function of breaking, remaining protection mechanism is then identical.
Soft circuit overload, disconnected phase, imbalance, short-circuit protection, are by 2640:1 current transformer acquisition is transferred to
It on soft controller MX2 control panel, is compared with the rated current set in program, carries out separating brake；When using emergency start,
Soft controller MX2 control panel is thrown away completely, and soft circuit of two-way is changed to directly rise, and defencive function is by enter line side disconnecting switch
Protection realize.
The earth leakage search/lockout function in all circuits is that the additional direct current that is exported by PLC subsequent resistance signaling modules is electric over the ground
Resistance value detection realizes, additional DC voltage 5V, when detecting duplexure（Contactor outlet is to this section of motor）It is right
Ground resistance value drops to 44K（1140V）And 24K（660V）When, PLC will control program locking current loop so that can not carry out
Start-up function, after resistance value is restored to solution drop lock over the ground, circuit automatic unlocking can carry out start-up function.
System overvoltage/undervoltage defencive function, is the voltage transformer by enter line side, and 1140V or 660V are become PLC module
Acceptable 100V voltage signals below are directly acquired by the analog module of PLC, are converted with predeterminated voltage information
Compare, to realize that overvoltage/undervoltage is protected, when under-voltage condition occurs, all circuits all will be unable to start, can be straight when having served as pressure life
Connect control high jump ON signal output cutoff high side power supply.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model, rather than limits it
System；Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should
Understand：It still can be with technical scheme described in the above embodiments is modified, either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacements, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type.
Claims (4)
1. a kind of soft straight starting device of multivoltage, it is characterised in that：Including the soft straight starter of low-pressure side（1）, the low-pressure side is soft
Straight starter（1）Power input pass through twin voltage phase shifting transformer（2）With high voltage distribution installation（3）It is connected；
The soft straight starter of low-pressure side（1）Including the first soft starter device（4）, the second soft starter device（5）, first electric leakage protect
Protection unit（6）, the twin voltage phase shifting transformer（2）First voltage output end successively and connect the first soft starter device（4）'s
Input terminal, the second soft starter device（5）Input terminal after with the first earth leakage protective device（6）It is connected；
The soft straight starter of low-pressure side（1）It further include the first straight starting device（7）, the second straight starting device（8）, third directly rises
Dynamic device（9）, lighting device（10）, master control transformer（11）With the second earth leakage protective device（12）, the twin voltage movement change
Depressor（2）Second voltage output end successively and connect the first straight starting device（7）Input terminal, the second straight starting device（8）'s
The straight starting device of input terminal, third（9）Input terminal, lighting device（10）Input terminal, master control transformer（11）Input terminal
Afterwards with the second earth leakage protective device（12）It is connected；
First soft starter device（4）With the second soft starter device（5）Circuit structure be：
The twin voltage phase shifting transformer（2）First voltage output end successively and connect one end of disconnecting switch Q101, main line mistake
Voltage absorber A101, the input terminal of voltage transformer P1, disconnecting switch Q201 one end after with three-phase reactor L101 one
End is connected, the other end neutral point and the first earth leakage protective device of the three-phase reactor L101（6）It is connected；
The other end of the disconnecting switch Q101 is sequentially connected in series main line current transformer T101, silicon-controlled JZGZ1, vacuum contactor
It is connected with motor M1 after K111, current transformer T111；
The both ends of the silicon-controlled JZGZ1 also and are connected to branch line overvoltage absorber A111, and the silicon-controlled JZGZ1 connects with vacuum
The device both ends of tentaculum K111 composition also and are connected to vacuum contactor K121；
The signal input part of the current transformer T111 is also associated with soft controller MX1, the letter of the soft controller MX1
Number output end is connected with display XS1；
The firing line of the silicon-controlled JZGZ1 is also connected with the triggering end of soft controller MX1；
Branch line overvoltage absorber A121 is also associated on line between the current transformer T111 and motor M1；
The output end of the voltage transformer P1 is connected with collection of simulant signal device；
The other end of the disconnecting switch Q201 is sequentially connected in series main line current transformer T201, silicon-controlled JZGZ2, vacuum contactor
It is connected with motor M2 after K211, current transformer T211；
The both ends of the silicon-controlled JZGZ2 also and are connected to branch line overvoltage absorber A211, and the silicon-controlled JZGZ2 connects with vacuum
The device both ends of tentaculum K211 composition also and are connected to vacuum contactor K221；
The signal input part of the current transformer T211 is also associated with soft controller MX2, the letter of the soft controller MX2
Number output end is connected with display XS2；
The firing line of the silicon-controlled JZGZ2 is also connected with the triggering end of soft controller MX2；
Branch line overvoltage absorber A221 is also associated on line between the current transformer T211 and motor M2.
2. the soft straight starting device of a kind of multivoltage according to claim 1, it is characterised in that：The first straight starting device
（7）, the second straight starting device（8）, the straight starting device of third（9）And lighting device（10）Circuit structure be：
The twin voltage phase shifting transformer（2）Second voltage output end successively and connect one end of disconnecting switch Q301, main line mistake
Voltage absorber A301, the input terminal of auxiliary supply transformer T205, upper electrical switch Q001 one end after with three-phase reactor
One end of L301 is connected, the other end neutral point and the second earth leakage protective device of the three-phase reactor L301（12）It is connected；
The other end of the disconnecting switch Q301 is connected with one end of main line current transformer T301, the main line current transformer
The other end of T301 successively and connects one end of vacuum contactor K311, behind one end of vacuum contactor K321 with vacuum contactor
One end of K331 is connected；
It is connected with motor M3 after the other end concatenation current transformer T311 of the vacuum contactor K311, the current transformer
Branch line overvoltage absorber A311 is also associated on line between T311 and motor M3；
It is connected with motor M4 after the other end concatenation current transformer T321 of the vacuum contactor K321, the current transformer
Branch line overvoltage absorber A321 is also associated on line between T321 and motor M4；
It is connected with motor M5 after the other end concatenation current transformer T331 of the vacuum contactor K331, the current transformer
Branch line overvoltage absorber A331 is also associated on line between T331 and motor M5；
After the output end concatenation accessory power supply contactor K511 of the auxiliary supply transformer T205 with auxiliary current transformer
One end of T511 is connected, the other end of the auxiliary current transformer T511 and connect behind one end of two-phase reactor L511 with illumination
Lamp is connected, and the other end of the two-phase reactor L511 is connected with earth leakage protective device LB511；
The other end of the upper electrical switch Q001 and master control transformer（11）Input terminal be connected.
3. the soft straight starting device of a kind of multivoltage according to claim 2, it is characterised in that：The twin voltage moves transformation
Device（2）First voltage output end output voltage be 1140V, twin voltage phase shifting transformer（2）Second voltage output end output
Voltage is 660V.
4. the soft straight starting device of a kind of multivoltage according to claim 3, it is characterised in that：First soft starter device
（4）, the second soft starter device（5）, the first straight starting device（7）, the second straight starting device（8）, the straight starting device of third（9）、
Lighting device（10）Signal output end be also connected with PLC controller by signal conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820046659.4U CN207780583U (en) | 2018-01-11 | 2018-01-11 | A kind of soft straight starting device of multivoltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820046659.4U CN207780583U (en) | 2018-01-11 | 2018-01-11 | A kind of soft straight starting device of multivoltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207780583U true CN207780583U (en) | 2018-08-28 |
Family
ID=63224059
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820046659.4U Expired - Fee Related CN207780583U (en) | 2018-01-11 | 2018-01-11 | A kind of soft straight starting device of multivoltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207780583U (en) |
-
2018
- 2018-01-11 CN CN201820046659.4U patent/CN207780583U/en not_active Expired - Fee Related
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Granted publication date: 20180828 |