CN212207442U - Tester for electrical device of wind driven generator - Google Patents
Tester for electrical device of wind driven generator Download PDFInfo
- Publication number
- CN212207442U CN212207442U CN202020303999.8U CN202020303999U CN212207442U CN 212207442 U CN212207442 U CN 212207442U CN 202020303999 U CN202020303999 U CN 202020303999U CN 212207442 U CN212207442 U CN 212207442U
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- voltage regulator
- switching
- measuring device
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- upper cover
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- 238000002955 isolation Methods 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims description 7
- 230000015556 catabolic process Effects 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 4
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000010616 electrical installation Methods 0.000 claims 1
- 238000012360 testing method Methods 0.000 description 16
- 238000003745 diagnosis Methods 0.000 description 5
- 230000003449 preventive effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses an aerogenerator electrical device tester, including box, upper cover, operating panel and circuit system, wherein: the box body is connected with the upper cover; when the upper cover is closed, the box body and the upper cover form a complete closed box; the operation panel is fixedly connected inside the box body; the circuit system is fixed between the operation panel and the box body; the circuit system is electrically connected with the operation panel; the operation panel comprises an embedded ammeter, an embedded voltmeter, a power switch and an isolation voltage regulator knob; the circuit system comprises an isolated voltage regulator, an automatic power supply switching-on and switching-off device, a measuring device and a switching-on and switching-off automation module; the automatic power supply cut-off device is connected with the isolated voltage regulator and the opening and closing automation module; the isolated voltage regulator is connected with the measuring device. The utility model has the advantages that: simple, convenient, safe, scientific, low in cost, easy to realize and wide in application.
Description
The technical field is as follows:
the utility model relates to an electric power system test field, concretely relates to wind power generator electrical apparatus tester.
Background art:
with the rapid development of national economy in China and the continuous innovation and progress of scientific technology, the proportion of the wind driven generator in the field of power supply is getting larger and larger when the clean energy is developed in an accelerating way. Particularly, in recent 10 years, the continuous production of large-capacity wind generating set and the large application of new power generation technology, the influence of the operation condition of the grid-connected generating set on the safe and stable operation of the power system is more and more large. In order to ensure the safe and stable long-period operation of a power grid, the health level of power generation equipment is required to be ensured, the operating environment of a wind driven generator is relatively severe, the wind driven generator is easily subjected to various working conditions such as load impact, frequent start and stop, large environmental temperature difference, large vibration and the like, and turn-to-turn short circuit faults are easily generated on a rotor winding of the generator. When turn-to-turn short circuit faults occur on rotor windings of the doubly-fed wind driven generator, vibration of shaft systems of a generator rotor and a fan rotor is easily caused, and damage accidents of a generator bearing and a rotor stator are easily caused by vibration.
In order to prevent the occurrence of the faults, the generator should be periodically subjected to preventive tests, and as the preventive tests of the wind driven generator are not greatly popularized, no patent wind driven generator electrical test diagnosis tester is invented so far; in particular to special test equipment (instrument) for a rotor winding device of a double-fed wind driven generator, in order to more conveniently and effectively carry out electrical test diagnosis and detection on the wind driven generator, an electrical test diagnosis and detection instrument for the wind driven generator is researched and developed, and the instrument is used as a special instrument for the test and provides convenient, scientific, safe and reliable electrical test diagnosis and detection for the wind driven generator for debugging and testing the wind driven generator. The method realizes the preventive test of the wind driven generator, and timely finds problems through the preventive test to prevent the problems.
The invention content is as follows:
an object of the utility model is to provide a simple, convenient, safe, science, with low costs, easily realize, use extensive wind turbine generator electrical test diagnosis test instrument.
The utility model discloses a realize through following technical scheme:
the utility model relates to an aerogenerator electrical device tester, including box, upper cover, operating panel and circuit system, wherein: the box body is connected with the upper cover; when the upper cover is closed, the box body and the upper cover form a complete closed box; the operation panel is fixedly connected inside the box body; the circuit system is fixed between the operation panel and the box body; the circuit system is electrically connected with the operation panel; the operation panel comprises an embedded ammeter, an embedded voltmeter, a power switch and an isolation voltage regulator knob; the circuit system comprises an isolated voltage regulator, an automatic power supply switching-on and switching-off device, a measuring device and a switching-on and switching-off automation module; the automatic power supply cut-off device is connected with the isolated voltage regulator and the opening and closing automation module; the isolated voltage regulator is connected with the measuring device.
The above wind turbine electrical device tester, wherein: the embedded ammeter and the embedded voltmeter are connected with the measuring device; the isolation voltage regulator knob is connected with the isolation voltage regulator; the isolated voltage regulator is made of a high-permeability silicon steel sheet iron core; the isolated voltage regulator realizes electric isolation through electromagnetic coupling.
The above wind turbine electrical device tester, wherein: the automatic power supply cut-off device comprises a constant-current type overcurrent protection relay; the constant current type overcurrent protection relay of the automatic power supply cut-off device is started after the actions of overload, load, breakdown of the tested equipment or breakdown of the generator tested equipment appear in the using process of the instrument.
The above wind turbine electrical device tester, wherein: the measuring device selects a 0.5-level four-digit half-panel type meter; the measuring device is installed in an embedded mode, wherein an alternating current meter and a direct current meter are connected between an alternating current output terminal and a direct current output terminal in series, and an alternating current voltmeter is connected; the accuracy of the measuring device is extremely according to GB national standard.
The above wind turbine electrical device tester, wherein: the switching-on and switching-off automation module comprises an alternating current contactor, a switching-off button and a switching-on button; an indicator light is designed on the opening and closing button of the opening and closing automation module; an alternating current contactor excitation coil loop of the switching-on and switching-off automation module is respectively connected in series with a pair of normally open nodes of a switching-on button, a pair of normally closed nodes of a switching-off button, a pair of normally closed nodes of an overcurrent relay and a pair of normally open nodes of a zero position travel microswitch of an isolation voltage regulator.
The above wind turbine electrical device tester, wherein: a micro travel switch is installed on the isolated voltage regulator to be used as zero protection of the isolated voltage regulator and limit the starting condition of the voltage regulator; the isolated regulator can only be activated at zero.
The beneficial effects of the utility model reside in that: the method is simple, convenient, safe, scientific, low in cost, easy to realize and wide in application; and can be used as an alternating current 0-250V alternating current continuously adjustable power supply for industrial electrical laboratories; the method can also be used for measuring the grounding resistance of high towers and substations of wind power plants.
Description of the drawings:
FIG. 1: the box body schematic diagram of the utility model;
FIG. 2: the schematic view of the operation panel of the utility model;
FIG. 3: the utility model discloses an electrical schematic diagram;
in the figure: the automatic switching-on/off control system comprises a box body 1, an upper cover 2, an operation panel 3, an embedded ammeter 301, an embedded voltmeter 302, a power switch 303, an isolated voltage regulator knob 304, a circuit system 4, an isolated voltage regulator 401, an automatic power supply switching-on/off device 402, a measuring device 403 and an automatic switching-on/off module 404.
The specific implementation mode is as follows:
the invention will be further explained with reference to the drawings and the detailed description below:
example (b): as shown in fig. 1, 2 and 3, an electrical device tester for a wind driven generator comprises a box body 1, an upper cover 2, an operation panel 3 and a circuit system 4, wherein: the box body 1 is connected with the upper cover 2; when the upper cover 2 is closed, the box body 1 and the upper cover 2 form a complete closed box; the operation panel 3 is fixedly connected inside the box body 1; the circuit system 4 is fixed between the operation panel 3 and the box body 1; the circuit system 4 is electrically connected with the operation panel 3; the operation panel 3 comprises an embedded ammeter 301, an embedded voltmeter 302, a power switch 303 and an isolation voltage regulator knob 304; the circuit system 4 comprises an isolated voltage regulator 401, an automatic power supply cut-off device 402, a measuring device 403 and a switching-on/off automation module 404; the automatic power supply cut-off device 402 is connected with the isolated voltage regulator 401 and the opening and closing automation module 404; the isolated voltage regulator 401 is connected with a measuring device 403; wherein: the embedded ammeter 301 and the embedded voltmeter 302 are connected with the measuring device 403; the isolation voltage regulator knob 304 is connected with the isolation voltage regulator 401; the isolated voltage regulator 401 is a voltage regulator made of a high-permeability silicon steel sheet iron core; the isolated voltage regulator 401 realizes electrical isolation through electromagnetic coupling; specifically, the primary side and the secondary side of the isolation type voltage regulator 401 are electrically isolated by a 0-15A secondary side (output) and a 0-250V continuously adjustable power frequency alternating current power supply through electromagnetic coupling, so that complete isolation between high voltage and low voltage is ensured, and the safety of an instrument and tested equipment is ensured; wherein: the automatic power cut-off device 402 includes a constant current type overcurrent protection relay; the constant current type overcurrent protection relay of the automatic power supply cut-off device 402 is started after the actions of overload, load, breakdown of the tested equipment or breakdown of the generator tested equipment appear in the using process of the instrument; wherein: the measuring device 403 selects a 0.5-level four-digit half-panel meter; the measuring device 403 is installed in an embedded manner, in which an ac ammeter and a dc ammeter are connected in series between the ac output terminal and the dc output terminal, and an ac voltmeter is connected; the accuracy of the measuring device 403 is extremely according to GB national standard; wherein: the switching-on/off automation module 404 includes an ac contactor, a switching-off button, and a switching-on button; an indicator lamp is designed on the opening and closing button of the opening and closing automation module 404; an excitation coil loop of an alternating current contactor of the switching-on and switching-off automation module 404 is respectively connected in series with a normally open node of a pair of switching-on buttons, a normally closed node of a pair of switching-off buttons, a normally closed node of a pair of overcurrent relays and a normally open node of a zero position travel microswitch of a pair of isolation voltage regulators; wherein: a micro travel switch is installed on the isolated voltage regulator 401 to be used as zero protection of the isolated voltage regulator, so that the starting condition of the voltage regulator is limited; the isolated voltage regulator 401 can only be activated in the zero position.
The utility model discloses before using, will the utility model discloses the output is connected to the both ends of generator rotor overvoltage protection device (jumper). Close double-link fall board switch K1, make the utility model discloses electrified, when guaranteeing isolated voltage regulator 401TB at the zero-bit, alternating current-direct current output option switch K2 selects at direct current output position, press closing button HN ac contactor and make the excitation of CJ coil, contactor normally closed node is closed, closing button and zero-bit protection travel switch XC give self-sustaining by an ac contactor node C simultaneously, power major loop switch-on isolated voltage regulator 401, rotatory isolation voltage regulator knob 304, make direct current output voltage from zero to a thousand volts steadily step up, direct current output has received filter capacitor C. According to the collected voltage and current data, an action characteristic curve of the generator rotor overvoltage protection device (jumper) is drawn, the quality of the generator rotor overvoltage protection device is judged according to the drawn curve, and a test conclusion is given. When the trigger of the automatic power supply cut-off device 402 is activated, the overcurrent protection of the utility model is started, the normally closed node IJ of the overcurrent relay is opened, the coil of the AC contactor loses power, and the working power supply of the utility model is cut off; the safety of instruments, tested articles and testing personnel is ensured; the micro travel switch designed and installed on the isolated voltage regulator 401 is used as zero protection of the isolated voltage regulator 401, and limits the starting condition (position) of the isolated voltage regulator 401, so that the isolated voltage regulator 401 can only be started at the zero position, and the danger of overvoltage generated by misoperation of the isolated voltage regulator 401 at any position on instruments, tested articles and testers is prevented; meanwhile, the utility model can also be used as an AC 0-250V AC continuous adjustable power supply in an industrial electrical laboratory; the method can also be used for measuring the grounding resistance of high towers and substations of wind power plants.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (6)
1. The utility model provides a aerogenerator electrical installation tester, includes box (1), upper cover (2), operating panel (3) and circuit system (4), its characterized in that: the box body (1) is connected with the upper cover (2); when the upper cover (2) is closed, the box body (1) and the upper cover (2) form a complete closed box; the operation panel (3) is fixedly connected inside the box body (1); the circuit system (4) is fixed between the operation panel (3) and the box body (1); the circuit system (4) is electrically connected with the operation panel (3); the operation panel (3) comprises an embedded ammeter (301), an embedded voltmeter (302), a power switch (303) and an isolation voltage regulator knob (304); the circuit system (4) comprises an isolated voltage regulator (401), an automatic power supply cut-off device (402), a measuring device (403) and a switching-on and switching-off automation module (404); the automatic power supply cut-off device (402) is connected with the isolated voltage regulator (401) and the switching-on and switching-off automation module (404); the isolated voltage regulator (401) is connected with a measuring device (403).
2. The wind turbine generator electrical apparatus tester of claim 1, wherein: the embedded ammeter (301) and the embedded voltmeter (302) are connected with the measuring device (403); the isolation voltage regulator knob (304) is connected with the isolation voltage regulator (401); the isolated voltage regulator (401) is a voltage regulator made of a high-permeability silicon steel sheet iron core; the isolated voltage regulator (401) is electrically isolated by electromagnetic coupling.
3. The wind turbine generator electrical apparatus tester of claim 1, wherein: the automatic power cut-off device (402) comprises a constant current over-current protection relay; the constant current type overcurrent protection relay of the automatic power supply cut-off device (402) is started after the actions of overload, load, breakdown of the tested equipment or breakdown of the tested equipment of the generator occur in the using process of the instrument.
4. The wind turbine generator electrical apparatus tester of claim 1, wherein: the measuring device (403) adopts a 0.5-level four-digit half-panel type meter; the measuring device (403) is installed in an embedded mode, wherein an alternating current meter and a direct current meter are connected between an alternating current output terminal and a direct current output terminal in series, and an alternating current voltmeter is connected; the accuracy of the measuring device (403) is extremely according to GB national standard.
5. The wind turbine generator electrical apparatus tester of claim 1, wherein: the switching-on and switching-off automation module (404) comprises an alternating current contactor, a switching-off button and a switching-on button; an indicator lamp is designed on the opening and closing button of the opening and closing automation module (404); an alternating current contactor excitation coil loop of the switching-on and switching-off automation module (404) is respectively connected in series with a pair of normally open nodes of a switching-on button, a pair of normally closed nodes of a switching-off button, a pair of normally closed nodes of an overcurrent relay and a pair of normally open nodes of a zero-position travel microswitch of an isolation voltage regulator.
6. The wind turbine generator electrical apparatus tester of claim 2, wherein: a micro travel switch is installed on the isolated voltage regulator (401) to be used as zero protection of the isolated voltage regulator, and starting conditions of the voltage regulator are limited; the isolated voltage regulator (401) can only be activated in a zero position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303999.8U CN212207442U (en) | 2020-03-12 | 2020-03-12 | Tester for electrical device of wind driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020303999.8U CN212207442U (en) | 2020-03-12 | 2020-03-12 | Tester for electrical device of wind driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212207442U true CN212207442U (en) | 2020-12-22 |
Family
ID=73822664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020303999.8U Expired - Fee Related CN212207442U (en) | 2020-03-12 | 2020-03-12 | Tester for electrical device of wind driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212207442U (en) |
-
2020
- 2020-03-12 CN CN202020303999.8U patent/CN212207442U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| 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: 20201222 |