CN103033746A - Load feedback measuring equipment of permanent magnet machine - Google Patents
Load feedback measuring equipment of permanent magnet machine Download PDFInfo
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- CN103033746A CN103033746A CN2012105079129A CN201210507912A CN103033746A CN 103033746 A CN103033746 A CN 103033746A CN 2012105079129 A CN2012105079129 A CN 2012105079129A CN 201210507912 A CN201210507912 A CN 201210507912A CN 103033746 A CN103033746 A CN 103033746A
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- load feedback
- cabinet
- phase
- permanent magnetic
- magnetic motor
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Abstract
The invention provides load feedback measuring equipment of a permanent magnet machine. The load feedback measuring equipment of the permanent magnet machine is characterized by comprising a movable cabinet body, a rectifier cabinet is arranged inside the movable cabinet body, and an A phase connection terminal, a B phase connection terminal and a C phase connection terminal are respectively connected with an A phase alternating current input end, a B phase alternating current input end and a C phase alternating current input end of the rectifier cabinet through an electric current sensor. A direct-current output terminal A is connected with one direct-current output terminal of the rectifier cabinet through a switch, a voltmeter is connected with the switch in parallel, and a direct-current output terminal B is connected with another direct-current output terminal of the rectifier cabinet through a diverter. The load feedback measuring equipment of the permanent magnet machine overcomes the defect of the prior art, and combines three phase rectifier and the measuring equipment into a whole, can measure the parameters of the direct current and the alternating current, and meets the requirement of the load feedback test of a permanent magnet machine.
Description
Technical field
Measurement mechanism when the present invention relates to a kind of permanent magnetic motor and carrying out the load electrical back to back test belongs to motor test method and technology field.
Background technology
The test of permanent magnetic motor is a key link in the large turbo-type generator, and the performance quality of permanent magnetic motor has directly determined the height of main exciter voltage.Because permanent magnetic motor is to be made of permanent magnetic material, so characteristic is repeated relatively poor, every permanent magnetic motor all need carry out load test.The permanent magnetic motor rotor field produces the three-phase high-frequency alternating current with three phase windings on the rear cutting stator of axle system rotation, the silicon controlled rectifier that high-frequency alternating current is sent into behind the AVR by AVR becomes the adjustable DC electricity, this adjustable DC electricity is sent into the main exciter stator winding again, the main exciter rotor rotates with axle system, after the main exciter stator winding is by excitation, then be cut to three-phase alternating current on the main exciter rotor winding, this three-phase alternating current is directly given generator amature after together the three phase full wave rectification diode rectification of rotation becomes direct current with axle system.In order to satisfy the design requirement, must measure by test.
Although this device considered safety factor copper busbar is placed in the cabinet, the limited space wiring is difficulty relatively.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of 250Hz of satisfying～400Hz intermediate-freuqncy signal permanent magnetic motor can not carry out experimental measurement with direct feedback method, can only adopt after the rectification direct current feedback to measure the measurement mechanism that must ask.
In order to solve the problems of the technologies described above, technical scheme of the present invention provides a kind of permanent magnetic motor load feedback measurement mechanism, it is characterized in that: comprise removable cabinet, rectifier cabinet is located in the removable cabinet, A phase connection terminal, B phase connection terminal, C phase connection terminal respectively by a current sensor connect input end with A cross streams input end, the B cross streams of rectifier cabinet, C cross streams input end is connected; The sub-A of dc output end passes through a dc output end sub-connection of a switch and rectifier cabinet, voltage table and switch in parallel, and the sub-B of dc output end is by another dc output end sub-connection of shunt and rectifier cabinet.
Preferably, described shunt is 2000/75mv.
Preferably, described current sensor is 2000/5A.
Preferably, also be provided with cooling blower in the described removable cabinet.
Preferably, described removable cabinet top is provided with suspension hook.
When a kind of permanent magnetic motor load feedback measurement mechanism provided by the invention uses, A phase connection terminal, B phase connection terminal, C phase connection terminal are connected with the three-phase output of permanent magnetic motor respectively, the sub-A of dc output end, the sub-B of dc output end are connected with two terminals of DC generator, then can measure the voltage, the current value that exchange input and direct current output.
Device provided by the invention has overcome the deficiencies in the prior art, and three phase rectifier and measurement mechanism are combined together, can accurately and easily measure direct current and alternating-current parameter, satisfies the requirement of permanent magnetic motor load electrical back to back test.
Description of drawings
Fig. 1 is a kind of permanent magnetic motor load feedback measurement mechanism schematic diagram provided by the invention;
Fig. 2 is a kind of permanent magnetic motor load feedback measurement mechanism provided by the invention wiring schematic diagram when permanent magnetic motor carries out the load electrical back to back test.
Embodiment
For the present invention is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.
Fig. 1 is a kind of permanent magnetic motor load feedback measurement mechanism schematic diagram provided by the invention, described a kind of permanent magnetic motor load feedback measurement mechanism comprises removable cabinet, rectifier cabinet is located in the removable cabinet, A phase connection terminal, B phase connection terminal, C phase connection terminal respectively by a current sensor connect input end with A cross streams input end, the B cross streams of rectifier cabinet, C cross streams input end is connected; The sub-A of dc output end passes through a dc output end sub-connection of a switch and rectifier cabinet, voltage table and switch in parallel, and the sub-B of dc output end is by another dc output end sub-connection of shunt and rectifier cabinet.Cooling blower also is housed in the removable cabinet.
Wherein, rectifier cabinet is the outsourcing product, (upper Hainan safe rectification company limited, FJ17-Z type thyristor (PCC) power)
The inlet wire outlet copper bar of permanent magnetic motor load feedback measurement mechanism is all at removable cabinet internal wiring, the outward appearance better appearance, and the cabinet top is equipped with suspension hook, considers that the driving handling is convenient.Electric parameter of the present invention is voltage 600V, electric current 2000A, and 2000/75mv shunt, 2000/5A current sensor, 6000A switch are joined in three-phase grouping full-wave rectification.Rectifier stack has warning function (light, sound) when breaking down, other rectifier stacks can normally use (reduction load).The type of cooling is air-cooled, and power switch control is arranged.Measurement module is integrated, has the three-phase voltage current measurement terminal and at panel indication is arranged.
In conjunction with Fig. 2, when a kind of permanent magnetic motor load feedback measurement mechanism provided by the invention uses, A phase connection terminal, B phase connection terminal, C phase connection terminal are connected with the three-phase output of permanent magnetic motor respectively, the sub-A of dc output end, the sub-B of dc output end are connected with two terminals of DC generator, then can measure the voltage, the current value that exchange input and direct current output.
A kind of permanent magnetic motor load feedback measurement mechanism provided by the invention combines three phase rectifier and measurement mechanism together, can accurately and easily measure direct current and alternating-current parameter.This device is used for permanent magnetic motor and the direct current unit carries out the load electrical back to back test, asks for all kinds of supplemental characteristics and analyzes and calculate.
Claims (5)
1. permanent magnetic motor load feedback measurement mechanism, it is characterized in that: comprise removable cabinet, rectifier cabinet is located in the removable cabinet, and A phase connection terminal, B phase connection terminal, C phase terminal are connected with A cross streams input end, B cross streams input end, the C cross streams input end of rectifier cabinet by a current sensor respectively; The sub-A of dc output end passes through a dc output end sub-connection of a switch and rectifier cabinet, voltage table and switch in parallel, and the sub-B of dc output end is by another dc output end sub-connection of shunt and rectifier cabinet.
2. a kind of permanent magnetic motor load feedback measurement mechanism as claimed in claim 1, it is characterized in that: described shunt is 2000/75mv.
3. a kind of permanent magnetic motor load feedback measurement mechanism as claimed in claim 1, it is characterized in that: described current sensor is 2000/5A.
4. a kind of permanent magnetic motor load feedback measurement mechanism as claimed in claim 1 is characterized in that: also be provided with cooling blower in the described removable cabinet.
5. a kind of permanent magnetic motor load feedback measurement mechanism as claimed in claim 1, it is characterized in that: described removable cabinet top is provided with suspension hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105079129A CN103033746A (en) | 2012-11-30 | 2012-11-30 | Load feedback measuring equipment of permanent magnet machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105079129A CN103033746A (en) | 2012-11-30 | 2012-11-30 | Load feedback measuring equipment of permanent magnet machine |
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| Publication Number | Publication Date |
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| CN103033746A true CN103033746A (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105079129A Pending CN103033746A (en) | 2012-11-30 | 2012-11-30 | Load feedback measuring equipment of permanent magnet machine |
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| CN (1) | CN103033746A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953034Y (en) * | 2006-08-30 | 2007-09-26 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Loading box and power generator circuit testing device |
| CN201138372Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Passenger car emergency power source experimental bench |
| CN101795084A (en) * | 2010-03-16 | 2010-08-04 | 东方电气集团东方电机有限公司 | Thyristor rectifier bridge parallel operation full digital current homogenizing control device |
| CN202059210U (en) * | 2011-05-09 | 2011-11-30 | 孟晓东 | Electromagnetic brake safe switching apparatus |
-
2012
- 2012-11-30 CN CN2012105079129A patent/CN103033746A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200953034Y (en) * | 2006-08-30 | 2007-09-26 | 中国航空工业第一集团公司沈阳发动机设计研究所 | Loading box and power generator circuit testing device |
| CN201138372Y (en) * | 2007-12-25 | 2008-10-22 | 青岛四方车辆研究所有限公司 | Passenger car emergency power source experimental bench |
| CN101795084A (en) * | 2010-03-16 | 2010-08-04 | 东方电气集团东方电机有限公司 | Thyristor rectifier bridge parallel operation full digital current homogenizing control device |
| CN202059210U (en) * | 2011-05-09 | 2011-11-30 | 孟晓东 | Electromagnetic brake safe switching apparatus |
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Application publication date: 20130410 |