CN2069164U - Reactance three phase pulse width modulation - Google Patents
Reactance three phase pulse width modulation Download PDFInfo
- Publication number
- CN2069164U CN2069164U CN 90211078 CN90211078U CN2069164U CN 2069164 U CN2069164 U CN 2069164U CN 90211078 CN90211078 CN 90211078 CN 90211078 U CN90211078 U CN 90211078U CN 2069164 U CN2069164 U CN 2069164U
- Authority
- CN
- China
- Prior art keywords
- coil
- phase
- pulse width
- width modulation
- iron core
- 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.)
- Withdrawn
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Abstract
The utility model relates to a reactance for three-phase pulse width modulation, which is suitable for matching with the integral unit of a 20KV A, 50Hz, 220/380V transistorized uninterrupted power supply in order to filter the output voltage of the sine pulse width modulation of a three-phase transistorized inverter. The reactance for three-phase pulse width modulation comprises coil curls, an iron core, top and bottom boards, a lateral board, a front opening lateral board, stays, interstice stays, an air gap backing board, upper and lower clamping elements, an insulating board, a through bolt, a pulling screw, etc. The coil curls are provided with short cross section, and the main magnetic flux density of the iron core is smaller than 7000 gausses. The coil curls B-phase is less than the coil curls in A-phase and C-phase, and the electric current density of the coil curls is confined to smaller than 2.5A/mm+[2]. The utility model has the advantages of light weight, small size and adjustable inductance.
Description
Three-phase pulse width modulated reactor is applicable to 20KVA, 50HZ, and 220/380V body pipe uninterruption power source complete machine is supporting, carries out filtering with the output voltage that the sinusoid pulse width modulation of three-phase 50HZ crystal inverter is modulated.
Reactor does not in the prior art also have and the supporting product of transistorization uninterruption power source complete machine, and the iron core of reactor adopts the stepped cross-section, this structure takes up room greatly, and is operated in the saturation region of magnetization curve, and magnetic flux density is between (15-17) kilogauss.
The purpose of this utility model is: provide a kind of in light weight, volume is little, main flux be operated in the inductance value of the range of linearity of magnetization curve adjustable within the specific limits and with the supporting reactor of transistorization uninterruption power source complete machine.
Reactor of the present utility model, by coil, iron core, upper and lower base plate, side plate, the preceding side plate that opens, stay, the gap stay, the air gap backing plate, upper and lower folder, insulation board, low magnetic conduction steel plate, core through screw rod draws screw rod, and iron yokes etc. are partly formed.Coil and cross section unshakable in one's determination are rectangle, and the B phase coil lack around a circle than A, the C phase number of turn, and the magnetic flux density of iron core is less than 7000 Gausses, and the electric density of coil is at 2.5A/mm
2Below, leave the gap of (10-18) mm at the two ends of coil self length direction.
The utility model has compared with prior art that volume is little, in light weight, and main magnetic circuit is operated in the range of linearity of magnetization curve, that inductance value can be adjusted in certain scope and can with advantages such as transistorization uninterruption power source complete machine is supporting.
Below in conjunction with description of drawings embodiment:
See Fig. 7,8, coil (1) adopts skeleton construction, each opens side plate (7) coil rack (3) before two, side plate (6) and upper and lower base plate (4) (5) are dressed up, its material adopts laminated epoxy glass-cloth board, on 4 angles of coil rack (3), be stained with 4 bracing bars (8), make it to form ventilating air passage with epoxy resin.As Figure 34, coil (1) is gone up its every interlayer around skeleton (3) insulation, after three layers, put 4 interradicular space stays (9), again around three layer line circles (1), it is few mutually around a circle that outermost layer coil (1) B compares A, C, coil (1) does not stay air flue at Width layer and interlayer, only the both ends of himself length direction adopt 4 interradicular space stays (9) constitute layer with layer between air flue, be beneficial to ventilation and heat.See Fig. 5,6, (2) unshakable in one's determination adopt the silicon steel sheet closed assembly to form, it is the air gap backing plate (10) of 10mm originally that core limb (18) middle part is lined with, be lined with the thick air gap backing plate (10) of 5.5mm that is between core limb (18) upper end and the upper yoke (17), low magnetic conduction steel plate (14) pad is middle with (2) unshakable in one's determination in upper and lower folder (11), (12), is in order to clamp core limb (18) and to reduce noise better.6 core through screw rod of horizontal usefulness (15) in (2) unshakable in one's determination clamp, and vertically draw screw rod (16) tension with 4, are lined with insulating pad (13) between upper and lower folder (11), (12) and (2) unshakable in one's determination, and iron core (2) is dried.Iron core (2) 3 core through screw rod in top (15) after will drying then and 4 draw the nut of screw rod (16) to unclamp, take out upper yoke (17), pack into 3 coils (1), after adjusting the gap, refill upper yoke (17), tighten core through screw rod (15) and draw the nut of screw rod (16) to finish general assembly.See Fig. 1,2, it is in order to adjust the inductance value of reactor easily that the gap is all left between core limb (18) and the upper yoke (17) and core limb (18) middle part.
Description of drawings
Fig. 1 is the front view of three-phase pulse width modulated reactor
Fig. 2 is the vertical view of three-phase pulse width modulated reactor
Fig. 3 is the coil front view of three-phase pulse width modulated reactor
Fig. 4 is the coil vertical view of three-phase pulse width modulated reactor
Fig. 5 is the assembling front view unshakable in one's determination of three-phase pulse width modulated reactor
Fig. 6 is the assembling plan view unshakable in one's determination of three-phase pulse width modulated reactor
Fig. 7 is the coil rack front view of three-phase pulse width modulated reactor
Fig. 8 is the coil rack vertical view of three-phase pulse width modulated reactor.
The number in the figure meaning is:
(1) coil (10) air gap backing plate
(2) (11) upper clamping piece unshakable in one's determination
(3) coil rack (12) lower clamping piece
(4) upper plate (13) insulating part
(5) the low magnetic conduction steel plate of lower shoe (14)
(6) side plate (15) core through screw rod
(7) the preceding side plate (16) that opens draws screw rod
(8) stay (17) iron yoke
(9) gap stay (18) core limb
Claims (5)
1, a kind of three-phase pulse width modulated reactor, by coil [1], iron core [2], upper plate [4], lower shoe [5], side plate [6], before open side plate [7], stay [8], gap stay [9], air gap backing plate [10], upper and lower folder [11], [12], insulation board [13], low magnetic conduction steel plate [14], core through screw rod [15] draws screw rod [16], and iron yoke [17] etc. are partly formed, it is characterized in that: coil [1] adopts the square-section, and the B phase coil lacks than A, the C phase number of turn, and the magnetic flux density of [2] unshakable in one's determination is less than 7000 Gausses.
2, reactor according to claim 1 is characterized in that: the electric density of coil (1) is at 2.5A/mm
2Below.
3, according to claim 1,2 described reactors, it is characterized in that: it is few mutually around a circle that the B of coil (1) compares A, C.
4, according to claim 1,2,3 described reactors, it is characterized in that: coil (1) leaves the gap of (10-18) mm at the two ends of self length direction.
5, reactor according to claim 1 is characterized in that iron core (2) is the square-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211078 CN2069164U (en) | 1990-01-23 | 1990-01-23 | Reactance three phase pulse width modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90211078 CN2069164U (en) | 1990-01-23 | 1990-01-23 | Reactance three phase pulse width modulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2069164U true CN2069164U (en) | 1991-01-09 |
Family
ID=4890922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90211078 Withdrawn CN2069164U (en) | 1990-01-23 | 1990-01-23 | Reactance three phase pulse width modulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2069164U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403104A (en) * | 2011-11-14 | 2012-04-04 | 张家港市中亚特种变压器制造有限公司 | Double reverse stars type rectifier transformer |
| CN103000353A (en) * | 2011-09-15 | 2013-03-27 | 李国勇 | Low-voltage rectangular iron-core reactor skeleton device |
| CN104078213A (en) * | 2014-07-11 | 2014-10-01 | 江苏华鹏变压器有限公司 | Air reactor body structure |
| CN105161260A (en) * | 2015-07-17 | 2015-12-16 | 江苏雷特电机股份有限公司 | Reactor core and manufacturing method thereof |
| CN110600249A (en) * | 2019-09-18 | 2019-12-20 | 浙江电力变压器有限公司 | Transformer convenient to equipment |
-
1990
- 1990-01-23 CN CN 90211078 patent/CN2069164U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103000353A (en) * | 2011-09-15 | 2013-03-27 | 李国勇 | Low-voltage rectangular iron-core reactor skeleton device |
| CN102403104A (en) * | 2011-11-14 | 2012-04-04 | 张家港市中亚特种变压器制造有限公司 | Double reverse stars type rectifier transformer |
| CN104078213A (en) * | 2014-07-11 | 2014-10-01 | 江苏华鹏变压器有限公司 | Air reactor body structure |
| CN105161260A (en) * | 2015-07-17 | 2015-12-16 | 江苏雷特电机股份有限公司 | Reactor core and manufacturing method thereof |
| CN105161260B (en) * | 2015-07-17 | 2017-12-12 | 江苏雷特电机股份有限公司 | A kind of core of reactor and preparation method thereof |
| CN110600249A (en) * | 2019-09-18 | 2019-12-20 | 浙江电力变压器有限公司 | Transformer convenient to equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |