CN2266223Y - Capacitance self-excitation medium frequency generator set - Google Patents

Capacitance self-excitation medium frequency generator set Download PDF

Info

Publication number
CN2266223Y
CN2266223Y CN 96226069 CN96226069U CN2266223Y CN 2266223 Y CN2266223 Y CN 2266223Y CN 96226069 CN96226069 CN 96226069 CN 96226069 U CN96226069 U CN 96226069U CN 2266223 Y CN2266223 Y CN 2266223Y
Authority
CN
China
Prior art keywords
generator
electric capacity
reformed
original
earth
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
Application number
CN 96226069
Other languages
Chinese (zh)
Inventor
倪鉴清
Original Assignee
倪鉴清
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 倪鉴清 filed Critical 倪鉴清
Priority to CN 96226069 priority Critical patent/CN2266223Y/en
Application granted granted Critical
Publication of CN2266223Y publication Critical patent/CN2266223Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

The utility model relates to a generator set which is used for testing pressure resistance of a voltage mutual inductor or a power transformer in an induction mode. The generator set is formed by a reformed hexapolar capacitance self-excited generator or a reformed octapolar capacitance self-excited generator is driven by a trip-hase bipolar squirrel cage induction motor. The output end of the reformed hexapolar capacitance self-excited generator or the reformed octapolar capacitance self-excited generator is connected with a capacitor. Besides, a stator winding of the reformed hexapolar capacitance self-excited generator or the reformed octapolar capacitance self-excited generator and a cross section of a wire are redesigned. The utility model has the advantages of condensive load adaptability, good output waveform, simple structure, small size, light weight, simple operation and easy maintenance.

Description

Electric capacity auto-excitation type intermediate frequency generator group
The utility model is a kind of testing generator group that voltage transformer or power transformer are carried out induced over voltage withstand test.Say it is the electric capacity auto-excitation type frequency multiplication induced over voltage withstand test machine that is developed into the principle of electric capacity self-excitation electricity according to induction motor definitely.
The device that is widely used for now power transformer and voltage transformer are carried out induced over voltage withstand test both at home and abroad has two kinds: 1, a kind of frequency tripling generator of forming by three single-phase transformers, the volume of each element of this device is less, weight is lighter, be easy to carry, therefore in electric power system, adopt it to come voltage transformer is carried out induced over voltage withstand test, but because this device comes out according to the magnetic saturation principle design, output waveform is bad, can only single-phasely export, again can only output frequency 150HZ, and be subjected to influence that input voltage changes very greatly, therefore, do not adopted by transformer factory and instrument transformer manufactory.2, to be that wire wound asynchronous motor is counter drag and the synchronous generator unit another kind; These two kinds of devices can single-phasely be exported, and can export by three-phase again, and output waveform is better, and the synchronous generator unit can be designed different frequencies according to different instructions for uses, but since the volume of these two kinds of devices more greatly, heavier, be not easy to carry, so do not adopted by electric power system.
The purpose of this utility model is according to the shortcoming that exists in the problems referred to above, for the user provides a kind of new-type electric capacity auto-excitation type intermediate frequency generator group.
The utility model drives an improved sextupole by three-phase the two poles of the earth squirrel-cage induction motor or ends of the earth electric capacity self excited generator is formed; The excitation mode of generator is to insert suitable electric capacity at the stator winding leading-out terminal, renovation technique scheme to six grades or ends of the earth electric capacity auto-excitation type motor is: 1) to the transformation of stator: the number of turn of stator winding and wire glass: if output frequency is 150HZ, then every line of rabbet joint number is original (31-33) %, and conductor cross-section is original three times; If output frequency is 200HZ, then every line of rabbet joint number is original (23-25) %, and conductor cross-section is original four times; 2) to the transformation of rotor: cancellation fan and fan base, will be to large-size machine at two ends fan base place installing gimbal; 3) gap between rotor and the stator core is than original gap big (10-60) %.
After the utility model is realized, can be used for being with the capacitive load test, and can not produce resonance, compared with the prior art this device more also has following advantage: 1) good output waveform, 2) simple in structure firm, 3) volume is little, in light weight, 4) operation, operation, safeguard all simple.
Below in conjunction with accompanying drawing the utility model is further specified:
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is a generator profile in the utility model;
Fig. 3 is the utility model circuit theory winding diagram;
Among the figure: 1-two utmost point squirrel cage induction motors, 2-is to wheel, 3-electric capacity auto-excitation type intermediate frequency generator, 4-axle, 5-stator line chart, 6-stator core, 7-cast-aluminum rotor, 8-air gap, 9-bearing, 10-shell.
Two utmost point squirrel cage induction motors should select: voltage 6KV, power 440KW, rotating speed 2960r/min; Generator: three-phase sextupole, squirrel cage induction motor, cast-aluminum rotor, voltage 6KV, power 310KW, electric current 37A, rotating speed 1000r/min, 1.3mm is elected in the stator rotor gap as, stator winding was that 6 tunnel series connection change two-way three tunnel parallel connections of connecting into originally, cancellation fan and fan base, and this place's axle needs finish turning; At fan base place installing gimbal, the heating interference fit is fixed on the fan base place, and is fastened on the support with 4 * M12, and two ends are all supported with 324 ball bearings; The finish turning rotor makes between rotor and stator air gap by 1.3mm transformation 2.2mm, magnetizing capacitance 10KV, 7.5uF.After above-mentioned transformation, these two squirrel cage induction motors are used just becomes an electric capacity auto-excitation type intermediate frequency generator group to taking turns direct connection.The output frequency of unit is 150HZ, and output voltage is 7KV, and output current is 142A, and output capacity is 1000KVA.

Claims (2)

1. electric capacity auto-excitation type intermediate frequency generator group, form by improved sextupole of three-phase the two poles of the earth squirrel-cage induction motor drive or ends of the earth electric capacity self excited generator, it is characterized in that: the excitation mode of generator is at the leading-out terminal of stator winding and connects an electric capacity that sextupole or ends of the earth electric capacity self excited generator are by being connected with three-phase the two poles of the earth squirrel-cage induction motor to wheel.
2. a kind of electric capacity auto-excitation type intermediate frequency generator group as claimed in claim 1, it is characterized in that: the renovation technique scheme of sextupole or ends of the earth electric capacity auto-excitation type motor is: 1) to the transformation of stator: with the number of turn and the wire glass transformation of stator winding, if output frequency is 150HZ, then every line of rabbet joint number is original (31-33) %, conductor cross-section is original 3 times, if output frequency is 200HZ, then every line of rabbet joint number is original (23-25) %, and conductor cross-section is original 4 times; 2) to the transformation of rotor: cancellation fan and fan base, will be to large-size machine at two ends fan base place installing gimbal; 3) gap between rotor and the stator core is than original gap big (10-60) %.
CN 96226069 1996-04-29 1996-04-29 Capacitance self-excitation medium frequency generator set Expired - Fee Related CN2266223Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96226069 CN2266223Y (en) 1996-04-29 1996-04-29 Capacitance self-excitation medium frequency generator set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96226069 CN2266223Y (en) 1996-04-29 1996-04-29 Capacitance self-excitation medium frequency generator set

Publications (1)

Publication Number Publication Date
CN2266223Y true CN2266223Y (en) 1997-10-29

Family

ID=33904566

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96226069 Expired - Fee Related CN2266223Y (en) 1996-04-29 1996-04-29 Capacitance self-excitation medium frequency generator set

Country Status (1)

Country Link
CN (1) CN2266223Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102055398A (en) * 2009-11-02 2011-05-11 本田技研工业株式会社 Condensive load protection device of self-excited generator
CN105846626A (en) * 2016-03-29 2016-08-10 浙江大东吴汽车电机有限公司 High-efficiency self-excitation type vehicle generator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102055398A (en) * 2009-11-02 2011-05-11 本田技研工业株式会社 Condensive load protection device of self-excited generator
CN102055398B (en) * 2009-11-02 2013-03-27 本田技研工业株式会社 Condensive load protection device of self-excited generator
CN105846626A (en) * 2016-03-29 2016-08-10 浙江大东吴汽车电机有限公司 High-efficiency self-excitation type vehicle generator
CN105846626B (en) * 2016-03-29 2018-11-02 浙江大东吴汽车电机股份有限公司 Auto-excitation type alternator for vehicle

Similar Documents

Publication Publication Date Title
CN103259347A (en) Rotary type contactless power transfer device
CN2266223Y (en) Capacitance self-excitation medium frequency generator set
CN108923718A (en) A kind of large power high efficiency energy-saving electric machine
CN112803561B (en) Electric automobile integrated charging circuit based on auxiliary inductance and three-phase motor drive
CN201188577Y (en) Single-phase reluctance generator
CN201044396Y (en) Gas engine driven DC arc-welding generator
CN1832303A (en) Brushless self-excited three-phase induction generator with series compensation function
CN2265026Y (en) Salient-pole brushless four-pole single-phase synchronous generator
CN2713720Y (en) Magnetic assisting type cage mode asynchronous motor
CN2283944Y (en) Single-phase and three-phase universal asynchronous motor
CN114123712B (en) Voltage converter based on double-stator electric excitation synchronous motor design
CN2197770Y (en) Asynchronous electric motor by single or three phase supply
CN1025977C (en) Self-coupling inner compensation and inner feedback speed-regulating motor
CN2160165Y (en) Single or three phase dual asgnchronous motor
CN2496170Y (en) Reactive compensation component which can be fit in three-phase asychronous motor
CN2141618Y (en) Single-phase brushfree neodymium iron boron ac generator
CN2165568Y (en) High-efficiency Y X2- asynchronous motor
CN214674963U (en) Three-phase synchronous generator with brushless double compound excitation
CN105914022A (en) Separating type transformer capable of transforming three phases into single phase
CN2165567Y (en) Rare-earth permanent-magnet industrial frequency electric generator
CN2147683Y (en) Three-phase generating dc welding two-purpose machine
CN2266136Y (en) Capacitance self-excitation frequency doubling induction high-voltage holding tester
CN2403171Y (en) Change pole compressor device
CN100376078C (en) High performance variable frequency speed regulation electric machine
CN200997552Y (en) Synchronizing wind-driven generater of permanent-magnetic direct-driven

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee