CN203260462U - Broadband large-power boosting transformer - Google Patents
Broadband large-power boosting transformer Download PDFInfo
- Publication number
- CN203260462U CN203260462U CN 201320158440 CN201320158440U CN203260462U CN 203260462 U CN203260462 U CN 203260462U CN 201320158440 CN201320158440 CN 201320158440 CN 201320158440 U CN201320158440 U CN 201320158440U CN 203260462 U CN203260462 U CN 203260462U
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- China
- Prior art keywords
- transformer
- frequency transformer
- 1khz
- secondary winding
- frequency
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Links
- 238000004804 winding Methods 0.000 claims abstract description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 6
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 3
- 229910000889 permalloy Inorganic materials 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- 239000011162 core material Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model relates to a broadband large-power boosting transformer which comprises a 25Hz-300Hz low-frequency transformer, a 300Hz-1kHz medium-frequency transformer, a 1kHz-10kHz high-medium-frequency transformer and an integral outer shell, wherein three sets of primary winding input terminals and two secondary winding output terminals are arranged on positions of the integral outer shell, a secondary winding of the 25Hz-300Hz low-frequency transformer is connected with a secondary winding of the 300Hz-1kHz medium-frequency transformer in parallel, the secondary winding of the 300Hz-1kHz medium-frequency transformer is connected with a secondary winding of the 1kHz-10kHz high-medium-frequency transformer in parallel, and the secondary winding of the 1kHz-10kHz high-medium-frequency transformer is connected with the secondary winding of the 25Hz-300Hz low-frequency transformer in parallel. The broadband large-power boosting transformer meets the requirement, for the frequency ranging from 25Hz to 10kHz, of a harmonic generator.
Description
Technical field
The utility model relates to a kind of transformer, is to satisfy the broad-frequency high-power step-up transformer of frequency from 25Hz to the requirement of 10kHz harmonic oscillator.
Background technology
In the power transmission system, because power consumption equipment is increasingly sophisticated, various harmonic waves occur in a large number, and electrical network has been produced severe contamination, threaten the safety of transmission facility.Therefore, design a kind of supply unit that can produce various harmonic waves, simulate the electrical network that is subjected to harmonic pollution, to the test that transmission facility or components and parts impact, can carry out early stage safety precaution, will greatly improve the usefulness of electrical network.And the multiple harmonic that produces based on the harmonic signal generator in the multiple-harmonic supply unit need to be coupled to test specimen by step-up transformer.The harmonic frequency of harmonic signal generator has contained the scope of low frequency to intermediate frequency, therefore, needs a kind of broad-frequency high-power step-up transformer of design necessary.
The utility model content
The utility model purpose just is to provide a kind of can contain the broad-frequency high-power step-up transformer that 25Hz can efficient coupling requires to test specimen to the multiple harmonic of 10kHz frequency range.
In order to achieve the above object, of the present utility model
Technical schemeFor:
A kind of broad-frequency high-power step-up transformer comprises the low-frequency transformer of 25Hz-300Hz, the intermediate frequency transformer of 300Hz-1kHz, the medium/high frequency transformer of 1kHz-10Hz, collection casing;
The iron core of the low-frequency transformer of described 25Hz-300Hz is to be made by silicon steel material, the iron core of the intermediate frequency transformer of described 300Hz-1kHz is to be made by the permalloy material, and the iron core of the medium/high frequency transformer of described 1kHz-10kHz is to be made by soft magnetic ferrite MnZn system; Described Ji Zhuanwaikechu is installed with respectively 3 groups of armature winding input wires terminals and 2 secondary winding output wiring terminals; The secondary winding of the low-frequency transformer of described 25Hz-300Hz is in parallel with the secondary winding of the intermediate frequency transformer of 300-1kHz; The secondary winding of the intermediate frequency transformer of described 300kHz-1HkZ is in parallel with the secondary winding of the medium/high frequency transformer of 1kHz-10kHz; The secondary winding of the medium/high frequency transformer of described 1kHz-10kHz is in parallel with the secondary winding of the low-frequency transformer of 25Hz-300Hz.
Of the present utility model
Beneficial effectFor: the utility model is compared with existing transformer has following advantages: because under different frequency, the difference of core material, the loss that transformer produces is also different, so this programme has the low-frequency transformer of 25Hz-300Hz, the intermediate frequency transformer of 300Hz-1kHz, the medium/high frequency transformer of 1kHz-10kHz.The parallel way of the transformer secondary output winding by 3 kinds of different frequency ranges, preferably the multiple harmonic of different frequency by this step-up transformer efficient coupling to test specimen.Namely satisfy and a kind ofly can satisfy the broad-frequency high-power step-up transformer of frequency from 25Hz to the requirement of 10kHz harmonic oscillator.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
In the accompanying drawing 1, the low frequency step-up transformer 2 of 25Hz-300Hz, the intermediate frequency step-up transformer 3 of 300Hz-1kHz, the medium-high frequency step-up transformer 4 of 1kHz-10kHz, collection casing.
Embodiment
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Described in the utility model a kind of broad-frequency high-power transformer as shown in Figure 1 comprises 1, the low-frequency transformer of 25Hz-300Hz, 2, the intermediate frequency transformer of 300Hz-1kHz, 3, the medium/high frequency transformer of 1kHz-10kHz, 4, the collection casing.
Since under different frequency, the difference of core material, and the loss that transformer produces is also different.Therefore, according to the transformer of these 3 kinds of different frequency ranges, remove the manufacturing process of iron core to the impact of loss, select as far as possible suitable core material, reduce transformer harmonic loss.
The computing formula of iron loss is:
In the formula
Be magnetic hysteresis loss,
Be eddy current loss,
,
Be constant,
Be the frequency power supply,
Peakflux density for iron core.From formula, can find out: when loss one timing, frequency
Reduce,
Can increase; Work as frequency
During increase,
Can reduce.Can select suitable core material thus.
The iron core of the low-frequency transformer of described 25Hz-300Hz is made by silicon steel material, it has high magnetic permeability (about 6000), very high saturation flux density (0.6T-1.9T), and resistivity is very low, and old cheap, so the applicable not high low-frequency range transformer of frequency.
The iron core of the intermediate frequency transformer of described 300Hz-1kHz is made by the permalloy material, and its magnetic permeability is between 14-550, and saturation flux density is the highest, good stability, and core loss is minimum.
The iron core of the medium/high frequency transformer of described 1kHz-10kHz is made by soft magnetic ferrite MnZn system, and its resistivity is very high, and core loss is low, is applicable to the high transformer of operating frequency.
Adopt the parallel way of the transformer secondary output winding of 3 kinds of different frequency ranges, wiring is as shown in Figure 1: a end of the low frequency step-up transformer 1 of 25Hz-300Hz and the b end of the intermediate frequency step-up transformer 2 of 300Hz-1kHz are connected leading-out terminal OUT1 with the c end of the medium/high frequency transformer 3 of 1kHz-10kHz.The low frequency step-up transformer 1 of 25Hz-300Hz
The intermediate frequency transformer 2 of end and 300Hz-1kHz
The medium/high frequency transformer 3 of end and 1kHz-10kHz
End is connected, leading-out terminal OUT2.OUT1 and OUT2 terminal connect the input of test specimen.
The A of the low frequency step-up transformer 1 of 25Hz-300Hz,
Two terminals connect the harmonic oscillator of similar frequency bands, the B of the intermediate frequency step-up transformer 2 of 300Hz-1kHz,
Two-terminal connects the harmonic oscillator of similar frequency bands, the C of the medium-high frequency step-up transformer 3 of 1kHz-10kHz,
Two terminals connect the harmonic oscillator of similar frequency bands.Thereby the multiple harmonic that makes different frequency range passes through this broad-frequency high-power step-up transformer efficient coupling in test specimen.
Claims (1)
1. a broad-frequency high-power step-up transformer is characterized in that, this step-up transformer comprises the low-frequency transformer of 25Hz-300Hz, the intermediate frequency transformer of 300Hz-1kHz, the medium/high frequency transformer of 1kHz-10Hz, collection casing;
The iron core of the low-frequency transformer of described 25Hz-300Hz is to be made by silicon steel material, the iron core of the intermediate frequency transformer of described 300Hz-1kHz is to be made by the permalloy material, and the iron core of the medium/high frequency transformer of described 1kHz-10kHz is to be made by soft magnetic ferrite MnZn system; Described Ji Zhuanwaikechu is installed with respectively 3 groups of armature winding input wires terminals and 2 secondary winding output wiring terminals; The secondary winding of the low-frequency transformer of described 25Hz-300Hz is in parallel with the secondary winding of the intermediate frequency transformer of 300-1kHz; The secondary winding of the intermediate frequency transformer of described 300kHz-1HkZ is in parallel with the secondary winding of the medium/high frequency transformer of 1kHz-10kHz; The secondary winding of the medium/high frequency transformer of described 1kHz-10kHz is in parallel with the secondary winding of the low-frequency transformer of 25Hz-300Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158440 CN203260462U (en) | 2013-04-02 | 2013-04-02 | Broadband large-power boosting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320158440 CN203260462U (en) | 2013-04-02 | 2013-04-02 | Broadband large-power boosting transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203260462U true CN203260462U (en) | 2013-10-30 |
Family
ID=49473007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320158440 Expired - Fee Related CN203260462U (en) | 2013-04-02 | 2013-04-02 | Broadband large-power boosting transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203260462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768805A (en) * | 2019-03-06 | 2019-05-17 | 贵州电网有限责任公司 | A kind of output device and output method of the complicated wave form signal suitable for R46 instruction |
-
2013
- 2013-04-02 CN CN 201320158440 patent/CN203260462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109768805A (en) * | 2019-03-06 | 2019-05-17 | 贵州电网有限责任公司 | A kind of output device and output method of the complicated wave form signal suitable for R46 instruction |
| CN109768805B (en) * | 2019-03-06 | 2024-01-09 | 贵州电网有限责任公司 | Output device and output method of complex waveform signal suitable for R46 instruction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20160402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |