CN205248993U - Suit mode DFM spindle voltage, axle electric current suppression device - Google Patents
Suit mode DFM spindle voltage, axle electric current suppression device Download PDFInfo
- Publication number
- CN205248993U CN205248993U CN201521071991.9U CN201521071991U CN205248993U CN 205248993 U CN205248993 U CN 205248993U CN 201521071991 U CN201521071991 U CN 201521071991U CN 205248993 U CN205248993 U CN 205248993U
- Authority
- CN
- China
- Prior art keywords
- common mode
- voltage
- dfm
- inductance module
- threephase cable
- 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.)
- Active
Links
Abstract
The utility model discloses a suit mode DFM spindle voltage, axle electric current suppression device, a serial communication port, which comprises a housin, the upper and lower both ends of casing are provided with the threephase cable, this threephase cable pass in in the casing, still be provided with temperature measuring device and common mode inductance module in the casing. The beneficial effects of the utility model are that: through threephase cable and the magnetic field coupling of common mode inductance module that sets up, restrain high frequency common mode voltage to convert the high frequency harmonic to heat and dispel the heat through the air, realize that DFM spindle voltage, shaft current restrain. Superheated damage is avoided to temperature measuring device ability real -time supervision common mode inductance module temperature.
Description
Technical field
The utility model relates to a kind of suit mode DFM arbor voltage, shaft current restraining device.
Background technology
Wind power generator frequency transformator has used IGBT at present, the parasitic capacitance simultaneously existing in generator itself and long cable, cause producing in alternator shaft common-mode voltage, the electric current of high frequency peak value, owing to having these harmful shaft voltages, electric current, can there is galvano-cautery in alternator shaft and connection bearing, cause generator driving unit fault to occur frequently.
For the problem in correlation technique, effective solution is not yet proposed at present.
Utility model content
The purpose of this utility model is to provide a kind of suit mode DFM arbor voltage, shaft current restraining device, can effectively reduce engine shaft common-mode voltage, electric current, avoids generator driving unit fault to occur frequently.
The purpose of this utility model is to be achieved through the following technical solutions:
A kind of suit mode DFM arbor voltage, shaft current restraining device, comprise housing, and the two ends up and down of described housing are provided with threephase cable, and this threephase cable, through in described housing, is also provided with temperature measuring equipment and common mode inductance module in described housing.
Further, described common mode inductance module is arranged between generator and current transformer, and adjacent to the terminals of described generator amature.
Further, described threephase cable is generator amature three phase connections.
The beneficial effects of the utility model are: by the threephase cable and the common mode inductance module magnetic Field Coupling that arrange, suppress high frequency common mode voltage, and high-frequency harmonic is converted to heat dispel the heat by air, realize DFM arbor voltage, shaft current suppresses. Temperature measuring equipment energy Real-Time Monitoring common mode inductance module temperature, avoided cause thermal damage.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is suit mode DFM arbor voltage, the shaft current restraining device structural representation according to the utility model embodiment.
In figure:
1, common mode inductance module; 2, temperature measuring equipment; 3, housing; 4, threephase cable; 5, generator; 6, rotor wiring end; 7 current transformers.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment. Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, belongs to the scope that the utility model is protected.
As shown in Figure 1, according to one suit mode DFM arbor voltage, shaft current restraining device described in embodiment of the present utility model, comprise common mode inductance module 1, temperature measuring equipment 2, housing 3 and threephase cable 4, described common mode inductance module 1 and temperature measuring equipment 2 are installed in housing 3, described threephase cable 4 is through common mode inductance module 1, and described housing 3 is fixed on generator-near.
Described common mode inductance module 1 is between generator 5 and current transformer 7, near generator 5 rotor wiring ends 6.
Described threephase cable 4 is generator amature three phase connections.
When concrete use, housing 3 is fixed on generator annex, be convenient to threephase cable 4 by common mode inductance module 1, threephase cable 4 and common mode inductance module 1 magnetic Field Coupling, suppress high frequency common mode voltage, and high-frequency harmonic is converted to heat dispel the heat by air, realize DFM arbor voltage, shaft current suppresses. Temperature measuring equipment 2 energy Real-Time Monitoring common mode inductance module 1 temperature, avoided cause thermal damage.
In sum, by means of technique scheme of the present utility model, by the threephase cable and the common mode inductance module magnetic Field Coupling that arrange, suppress high frequency common mode voltage, and high-frequency harmonic is converted to heat dispel the heat by air, realize DFM arbor voltage, shaft current suppresses. Temperature measuring equipment energy Real-Time Monitoring common mode inductance module temperature, avoided cause thermal damage.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. one kind is set with mode DFM arbor voltage, shaft current restraining device, it is characterized in that, comprise housing, the two ends up and down of described housing are provided with threephase cable, this threephase cable, through in described housing, is also provided with temperature measuring equipment and common mode inductance module in described housing.
2. suit mode DFM arbor voltage according to claim 1, shaft current restraining device, is characterized in that, described common mode inductance module is arranged between generator and current transformer, and adjacent to described generator amature terminals.
3. suit mode DFM arbor voltage according to claim 1, shaft current restraining device, is characterized in that, described threephase cable is generator amature three phase connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071991.9U CN205248993U (en) | 2015-12-21 | 2015-12-21 | Suit mode DFM spindle voltage, axle electric current suppression device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521071991.9U CN205248993U (en) | 2015-12-21 | 2015-12-21 | Suit mode DFM spindle voltage, axle electric current suppression device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248993U true CN205248993U (en) | 2016-05-18 |
Family
ID=55948062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521071991.9U Active CN205248993U (en) | 2015-12-21 | 2015-12-21 | Suit mode DFM spindle voltage, axle electric current suppression device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248993U (en) |
-
2015
- 2015-12-21 CN CN201521071991.9U patent/CN205248993U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104267231A (en) | Miniature voltage energy obtaining device arranged in switchgear | |
| CN205248786U (en) | Mode DFM spindle voltage, axle electric current suppression device concatenate | |
| CN203951382U (en) | The inverter circuit of electric power secondary system driver module | |
| CN204142808U (en) | A kind of miniature voltage energy taking device be built in switchgear | |
| CN205248993U (en) | Suit mode DFM spindle voltage, axle electric current suppression device | |
| CN107978434B (en) | Inverse Scott transformer with harmonic elimination function | |
| CN203481841U (en) | Photovoltaic inverter system circuit structure based on auto transformer | |
| CN205610331U (en) | Portable invertion power supply breakdown van | |
| CN203951372U (en) | The driver module of electric power secondary system | |
| CN205754103U (en) | A kind of motor magnetic circuit controls efficient energy-saving device | |
| CN204855746U (en) | Motor type test system | |
| CN203983813U (en) | A kind of 35kV combined transformer for photovoltaic generation | |
| CN204145339U (en) | A kind of compensation self coupling soft starter device | |
| CN203951186U (en) | The stube cable of electric power secondary system | |
| CN211828446U (en) | Energy-taking CT protection device | |
| CN204011009U (en) | A kind of transformer high-low-voltage coil main oil gallery earthing | |
| CN214099325U (en) | Voltage transformer for switching power supply | |
| CN202189666U (en) | Electricity-saving three-phase dry transformer | |
| CN203103955U (en) | Reactor being capable of avoiding repeated harmonic waves | |
| CN203355375U (en) | Electric protection system of peripheral driving thickener | |
| CN205051336U (en) | Grounding transformer | |
| CN203983985U (en) | The lightning protection circuit of electric power secondary system | |
| CN203951183U (en) | Electric power secondary system | |
| CN204465365U (en) | A kind of power conversion equipment being applied to ammeter | |
| CN203859592U (en) | Intelligent variable-frequency power generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 101300 Beijing Haidian District Zizhuyuan Road No. 120 Building No. 1 608 Patentee after: Beijing access people Polytron Technologies Inc Address before: 101300, building 1, TEDA science and Technology Park, Tianzhu Free Trade Zone, Tianzhu, Beijing, Shunyi District Patentee before: Beijing Eulikind Co., Ltd. |