CN208489805U - A kind of multipolar dynamo starter - Google Patents
A kind of multipolar dynamo starter Download PDFInfo
- Publication number
- CN208489805U CN208489805U CN201821237292.0U CN201821237292U CN208489805U CN 208489805 U CN208489805 U CN 208489805U CN 201821237292 U CN201821237292 U CN 201821237292U CN 208489805 U CN208489805 U CN 208489805U
- Authority
- CN
- China
- Prior art keywords
- motor
- soft activator
- connect
- contactor
- general supply
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000007858 starting material Substances 0.000 title claims abstract description 15
- 239000012190 activator Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Motor And Converter Starters (AREA)
Abstract
The utility model discloses a kind of multipolar dynamo starters, including soft activator, the power input of soft activator is connect with general supply line, the power output end of soft activator is connect by n electric motor starting contactor one-to-one correspondence with the power circuit input terminal of n motor, and electric motor starting contactor is connect with external control system.The utility model controls electric motor starting contactor on-off by control system, soft activator is set to cut motor power circuit when needing multipolar dynamo to start, start motor, the power supply of motor operation contactor is switched to after the completion of electric motor starting, soft activator cuts out main circuit, into armed state, prepare next group of motor of starting.Realize the function of starting multiple electric motors by a soft activator.
Description
Technical field
The utility model relates to electric motor starting control device field, specifically a kind of multipolar dynamo starter.
Background technique
Motor load such as compressor, blower, water pump starting current be usually 7 times of specified running current or more, open
Very big impact is caused to entire power grid when dynamic, the starting current that motor load can be effectively reduced in soft activator (is reduced to volume
3 ~ 5 times for determining running current), but soft activator price general charged is expensive, and motor load power is bigger, required soft activator
Cost it is more expensive.The traditional method of multipolar dynamo is that successively interval directly initiates motor or installs additional for every primary motor soft
Starter.The former the shortcomings that is that starting current cannot be effectively reduced, and the increase of the motor with starting, the motor having been started up
Running current adds the superposition of the starting current of the motor started, and biggish impact still can be caused to power grid.The latter's
The disadvantage is that involving great expense, control system is complicated, and this valuableness is not merely soft activator price, and there are also corresponding open circuits
The increase of device, contactor, soft activator control circuit, cable etc., cost and maintenance cost are high.
The purpose of the utility model is to provide a kind of multipolar dynamo starters for utility model content, to solve existing skill
Art there are the problem of, multipolar dynamo starting current is effectively reduced.
In order to achieve the above object, the technology employed by the present utility model is
A kind of multipolar dynamo starter, it is characterised in that: including the internal soft activator with relay, soft activator
Power input connect with general supply line, the relay both ends in soft activator are connect with external control system respectively, soft to open
The power output end of dynamic device is connected with the road n output line, and the road n output line is a pair of with the power circuit input terminal of n motor one respectively
It should connect, electric motor starting contactor has been respectively connected on every road output line, electric motor starting contactor is connect with external control system.
A kind of multipolar dynamo starter, it is characterised in that: the power circuit input terminal of each motor is also distinguished
It passes sequentially through motor electrothermal relay, motor operation contactor, motor breaking device to connect with general supply line, and motor operation contactor
It is connect with external control system.
A kind of multipolar dynamo starter, it is characterised in that: the power input of soft activator passes through soft start
Device breaker is connect with general supply line.
A kind of multipolar dynamo starter, it is characterised in that: general supply line passes through general supply breaker and outside
General supply connection.
Utility model works process is as follows:
By taking any one motor as an example, external control system provides the motor starting-up signal first, then external control system
System connects the corresponding electric motor starting contactor of the motor, and such soft activator accesses the power circuit of the motor, while the electricity
The corresponding motor operation contactor of machine disconnects.
Then soft activator work starts the motor, and general supply line supplies power to the motor by soft activator at this time.It is soft to open
For dynamic device after the completion of the electric motor starting, soft activator internal relay closure, being handled by control system keeps the motor corresponding
The closure conducting of motor operation contactor, the corresponding electric motor starting contactor of the motor and motor operation contactor are led simultaneously at this time
It is logical.
After shorter a period of time, soft activator internal relay is disconnected, and being handled by control system makes the motor pair
The electric motor starting contactor answered disconnects, and general supply line continues through corresponding motor operation contactor and supplies power to the motor, the electricity
Machine start completion enters the even running stage, and soft activator enters armed state.Other each electric motor startings are according to the above process
?.
Compared with prior art, the advantages of the utility model are as follows:
The utility model is disconnected by the incision that control system operates the less expensive contactor of price, is realized by one
Soft activator starts the function of multiple electric motors, had both reduced the starting current of motor, and had reduced impact of the electric motor starting to power grid,
It is again economical and practical.
Detailed description of the invention
Fig. 1 is the utility model circuit diagram.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
It is soft to open including the internal soft activator A1 with relay R2 as shown in Figure 1, a kind of multipolar dynamo starter
The power input of dynamic device A1 is connect with general supply line, the both ends relay R2 in soft activator A1 respectively with external control system
Connection, the power output end of soft activator A1 are connected with the road n output line, the road the n output line power supply with n motor M1-Mn respectively
Circuit input end connects one to one, and electric motor starting contactor has been respectively connected on every road output line, therefore shared n motor opens
Dynamic contactor KMQ1-KMQn, electric motor starting contactor KMQ1-KMQn are connect with external control system respectively.
The power circuit input terminal of each motor M1-Mn also passes sequentially through motor electrothermal relay FR1-FRn, motor fortune respectively
Row contactor KM1-KMn, motor breaking device Q1-Qn are connect with general supply line, and motor operation contactor KM1-KMn is respectively and outside
The connection of portion's control system.
The power input of soft activator A1 is connect by soft activator circuit breaker Q with general supply line.
General supply line is connect by general supply circuit breaker Q 0 with external general supply.
In the utility model, soft activator A1 separates multichannel conducting wire, corresponding to pass through electric motor starting contactor KMQ1- at different levels
KMQn is connected directly with multiple motor M1-Mn, while motor operation contactor KM1-KMn when motor M1-Mn at different levels operation, electricity
The corresponding motor of machine electrothermal relay FR1-FRn connection and general supply line.In startup stage, soft activator A1 accesses each motor M1-
The power circuit of Mn starts motor, operation phase, and soft activator A1 cuts out power circuit, and motor is transported by general supply line by motor
Row contactor is directly powered.
When the utility model is used, specific work process is as follows by taking any one motor Mn as an example:
Control system needs motor n to provide motor Mn enabling signal when starting, and control system makes electric motor starting contactor
KMQn closure, general supply line access the power circuit of motor Mn, control system by soft activator A1, electric motor starting contactor KMQn
System makes soft activator work, and starts motor Mn, motor Mn is powered by general supply line by soft activator A1 at this time, soft activator
A1 internal relay R2 after motor Mn start completion is closed, and being handled by control system is closed motor operation contactor KMn
Conducting, electric motor starting contactor KMQn and motor operation contactor KMn are simultaneously turned at this time, and motor Mn passes through two by general supply line
Person powers simultaneously, motor Mn even running；After shorter a period of time, soft activator A1 internal relay R2 is disconnected automatically,
Being handled by control system disconnects electric motor starting contactor KMQn, and motor Mn continuation is powered by operation contactor KMn, motor Mn
Start completion enters the even running stage, and soft activator A1 is disconnected from the circuit motor Mn enters armed state.According to operating repeatedly
These steps can start all motors by a soft activator.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (4)
1. a kind of multipolar dynamo starter, it is characterised in that: there is the soft activator of relay including inside, soft activator
Power input is connect with general supply line, and the relay in soft activator is connect with external control system, the power supply of soft activator
Output end is connected with the road n output line, and power circuit input terminal of the road the n output line respectively with n motor connects one to one, every road
Electric motor starting contactor is respectively connected on output line, electric motor starting contactor is connect with external control system.
2. a kind of multipolar dynamo starter according to claim 1, it is characterised in that: the power circuit of each motor is defeated
Enter end also to pass sequentially through motor electrothermal relay, motor operation contactor, motor breaking device respectively and connect with general supply line, and motor
Operation contactor is connect with external control system.
3. a kind of multipolar dynamo starter according to claim 1, it is characterised in that: the power input of soft activator
It is connect by soft activator breaker with general supply line.
4. a kind of multipolar dynamo starter according to claim 1, it is characterised in that: general supply line is disconnected by general supply
Road device is connect with external general supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237292.0U CN208489805U (en) | 2018-08-02 | 2018-08-02 | A kind of multipolar dynamo starter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821237292.0U CN208489805U (en) | 2018-08-02 | 2018-08-02 | A kind of multipolar dynamo starter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208489805U true CN208489805U (en) | 2019-02-12 |
Family
ID=65246658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821237292.0U Expired - Fee Related CN208489805U (en) | 2018-08-02 | 2018-08-02 | A kind of multipolar dynamo starter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208489805U (en) |
-
2018
- 2018-08-02 CN CN201821237292.0U patent/CN208489805U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190212 |