CN203933459U - A kind of hollow Regulatable reactor - Google Patents
A kind of hollow Regulatable reactor Download PDFInfo
- Publication number
- CN203933459U CN203933459U CN201420314557.8U CN201420314557U CN203933459U CN 203933459 U CN203933459 U CN 203933459U CN 201420314557 U CN201420314557 U CN 201420314557U CN 203933459 U CN203933459 U CN 203933459U
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- coil
- main coil
- pillar
- insulated
- toughened glass
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Abstract
A kind of hollow Regulatable reactor, belong to starting device of motor technical field, comprise base, on base, be provided with insulated coil pillar, insulated coil pillar outer felt is wound with main coil, insulated coil pillar inner side is provided with the control coil corresponding with main coil, control coil is all hollow cylinder and coaxial with described insulated coil, between control coil two end connectors, be connected with controllable silicon components and parts, on base, be provided with toughened glass cover, insulated coil pillar is arranged in described toughened glass cover, and electromagnetic shielding film has been sticked on toughened glass cover.Compared with prior art, the beneficial effects of the utility model are: can be by regulating the electric current on the control coil corresponding with main coil to change the reactance value on main coil, make the reactance on main coil adjustable, not only allow being suitable for of reactor more extensive, can in the time opening heavy-duty motor, return to gradually rated power at reduced voltage starting relief motor, also be provided with electro-magnetic shielding cover simultaneously, prevent electromagnetic radiation.
Description
Technical field
The utility model belongs to starting device of motor technical field, is specifically related to a kind of reactor for electric motor starting.
Background technology
The rated voltage of some alternating current motors is between 3KV-10KV, and this class capacity motor is large, and starting voltage is high, if across-the-line starting immediate current can cause fault or the direct motor damage of motor.Normally carry out actuating motor by the method for step-down in order to overcome this phenomenon, conventional step-down method is the starting reactor of connecting in winding at present.In the reduced voltage starting of motor, the series connection of motor and reactor, the electric current when reducing motor starting and the impact to electrical network, after starting, reactor excises automatically from electrical network.Current reactor is divided into open-core type and core type.Need in actual applications the inductance value of reactor to carry out suitable adjusting, so just there is the reactor that inductance is adjustable.Present adjustable reactor is mainly divided into: regulate reactor tap hair style, regulate the modes such as reactor GAP TYPE, direct current magnetism-assisting formula and thyristor control formula, these adjustable reactors are all core type reactor substantially, because present open-core type reactor is the reactor that inductance value is constant mostly, need in actual use a kind of adjustable open-core type reactor.
Summary of the invention
The utility model is for deficiency of the prior art, a kind of hollow Regulatable reactor is provided, can be by regulating the electric current on the control coil corresponding with main coil to change the reactance value on main coil, make the reactance on main coil adjustable, not only allow being suitable for of reactor more extensive, can in the time opening heavy-duty motor, return to gradually rated power at reduced voltage starting relief motor, also be provided with electro-magnetic shielding cover simultaneously, prevent electromagnetic radiation.
In order to solve the problems of the technologies described above, the utility model is solved by following technical proposals: a kind of hollow Regulatable reactor, comprise base, on described base, be provided with insulated coil pillar, described insulated coil pillar outer felt is wound with main coil, described insulated coil pillar inner side is provided with the control coil corresponding with described main coil, described control coil is all hollow cylinder and coaxial with described main coil, between described control coil two end connectors, be connected with controllable silicon components and parts, on described base, be provided with toughened glass cover, described insulated coil pillar is arranged in described toughened glass cover, electromagnetic shielding film has been sticked on described toughened glass cover.Arrange like this, the utility model both sides inside and outside insulated coil pillar are respectively arranged with main coil and the control coil corresponding with main coil, on control coil, be provided with controllable silicon components and parts, controllable silicon components and parts can allow control coil open a way or short circuit, and the electric current on control coil is had greatly changed.When concrete use, the electrical current direction of control coil and main coil current opposite direction, make control coil produce a magnetic field contrary with main coil magnetic field, makes control coil affect the reactance value of main coil by mutual inductance phenomenon.In initial condition, controllable silicon components and parts control control coil is open circuit, allow the reactance value on main coil be maximum, then start heavy-duty motor by the utility model, when after heavy-duty motor starting, regulate gradually controllable silicon components and parts, make control coil become short circuit from open circuit, allow and increase by the electric current of control coil, the magnetic field producing is stronger, because be counter magnetic field for the magnetic field that the magnetic field that control coil produces produces with respect to main coil, in the time that the magnetic field of control coil is larger, offset gradually the magnetic field that main coil produces, reactance value on main coil is reduced gradually, heavy-duty motor reaches rated voltage gradually.In actual motion, the mode of the size adjustment main coil reactance value by control coil electric current, can allow minimum reactance value is maximum reactance value on main coil 30%, adjustable range has reached 70%.With respect to other regulative mode of reactor, control method of the present utility model is simple and convenient, with low cost.Also be provided with outward in toughened glass cover at reactor, electromagnetic shielding film has been sticked on toughened glass cover, can shield like this electromagnetic wave that control coil and main coil produce in adjusting, when several reactors can prevent interfering with each other between them together time.
In technique scheme, preferred, on described main coil, be provided with current detector.Arrange like this, external current detector on main coil, can monitor the electric current of main coil in reactor adjustment process in real time, makes to regulate the needed requirement of the compound reality of electric current that can allow on main coil.
In technique scheme, preferred, on described insulated coil pillar, evenly circumference is provided with air channel, is provided with the fan matching with described air channel on described base.Arrange like this, because control coil and main coil, in the time reconciling, fever phenomenon can occur, can in air channel, dry by the fan of base, dispel the heat by air-cooled control coil and the main coil of allowing in air channel.
Compared with prior art, the beneficial effects of the utility model are: can be by regulating the electric current on the control coil corresponding with main coil to change the reactance value on main coil, make the reactance on main coil adjustable, not only allow being suitable for of reactor more extensive, can in the time opening heavy-duty motor, return to gradually rated power at reduced voltage starting relief motor, also be provided with electro-magnetic shielding cover simultaneously, prevent electromagnetic radiation.
Brief description of the drawings
Fig. 1 is the utility model schematic cross-section.
Fig. 2 is the utility model schematic top plan view.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of hollow Regulatable reactor, comprise base 1, on base 1, be provided with insulated coil pillar 2, insulated coil pillar 2 outer felt are wound with main coil 3, and insulated coil pillar 2 inner sides are provided with the control coil corresponding with main coil 34, and control coil 4 is all hollow cylinder and coaxial with main coil 3, between 4 liang of end connectors of control coil, be connected with controllable silicon components and parts 41, on main coil 3, be provided with current detector 31.On insulated coil pillar 2, evenly circumference is provided with air channel 21, is provided with the fan 11 matching with air channel 21 on base 1.On base 1, be provided with toughened glass cover 12, insulated coil pillar 2 is arranged in toughened glass cover 12, and electromagnetic shielding film has been sticked on toughened glass cover 12.
The utility model is respectively arranged with main coil 3 and the control coil 4 corresponding with main coil 3 in the inside and outside both sides of insulated coil pillar 2, on control coil 4, be provided with controllable silicon components and parts 41, controllable silicon components and parts 41 can allow control coil 4 open a way or short circuit, and the electric current on control coil 4 is had greatly changed.When concrete use, the electrical current direction of control coil 4 and main coil 3 current opposite in direction, make control coil 4 produce a magnetic field contrary with main coil 3 magnetic fields, makes control coil 4 affect the reactance value of main coil 3 by mutual inductance phenomenon.In initial condition, controllable silicon components and parts 41 are controlled control coil 4 for open circuit, allow the reactance value on main coil 3 be maximum, then start heavy-duty motor by the utility model, when after heavy-duty motor starting, regulate gradually controllable silicon components and parts 41, make control coil 4 become short circuit from open circuit, allow and increase by the electric current of control coil 4, the magnetic field producing is stronger, because be counter magnetic field for the magnetic field that the magnetic field that control coil 4 produces produces with respect to main coil 3, in the time that the magnetic field of control coil 4 is larger, offset gradually the magnetic field that main coil 3 produces, reactance value on main coil 3 is reduced gradually, heavy-duty motor reaches rated voltage gradually.In actual motion, the mode of size adjustment main coil 3 reactance values by control coil 4 electric currents, can allow minimum reactance value is maximum reactance value on main coil 3 30%, adjustable range has reached 70%.With respect to other regulative mode of reactor, control method of the present utility model is simple and convenient, with low cost.On base 1, be provided with toughened glass cover 12, electromagnetic shielding film has been sticked on toughened glass cover 12, can shield like this electromagnetic wave that control coil 4 and main coil 3 produce in adjusting, when several reactors can prevent interfering with each other between them together time.Because control coil 4 and main coil 3, in the time reconciling, fever phenomenon can occur, can, by the fan 11 of base 1 to the interior blowing in air channel 21, dispel the heat by air-cooled control coil 4 and the main coil 3 of allowing in air channel 21 simultaneously.
Claims (3)
1. a hollow Regulatable reactor, comprise base (1), on described base (1), be provided with insulated coil pillar (2), described insulated coil pillar (2) outer felt is wound with main coil (3), it is characterized by, described insulated coil pillar (2) inner side is provided with the control coil (4) corresponding with described main coil (3), described control coil (4) is all hollow cylinder and coaxial with described main coil (3), between described control coil (4) two end connectors, be connected with controllable silicon components and parts (41), on described base (1), be provided with toughened glass cover (12), described insulated coil pillar (2) is arranged in described toughened glass cover (12), electromagnetic shielding film has been sticked on described toughened glass cover (12).
2. the hollow Regulatable reactor of one according to claim 1, is characterized by, and on described main coil (3), is provided with current detector (31).
3. the hollow Regulatable reactor of one according to claim 1, it is characterized by, the upper even circumference of described insulated coil pillar (2) is provided with air channel (21), is provided with the fan (11) matching with described air channel (21) on described base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314557.8U CN203933459U (en) | 2014-06-13 | 2014-06-13 | A kind of hollow Regulatable reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314557.8U CN203933459U (en) | 2014-06-13 | 2014-06-13 | A kind of hollow Regulatable reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933459U true CN203933459U (en) | 2014-11-05 |
Family
ID=51829211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314557.8U Expired - Fee Related CN203933459U (en) | 2014-06-13 | 2014-06-13 | A kind of hollow Regulatable reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933459U (en) |
-
2014
- 2014-06-13 CN CN201420314557.8U patent/CN203933459U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170613 |