CN214013872U - Harmonic protector for protecting power grid - Google Patents
Harmonic protector for protecting power grid Download PDFInfo
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- CN214013872U CN214013872U CN202022481420.XU CN202022481420U CN214013872U CN 214013872 U CN214013872 U CN 214013872U CN 202022481420 U CN202022481420 U CN 202022481420U CN 214013872 U CN214013872 U CN 214013872U
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- inductor
- parallel
- harmonic
- wave suppression
- main circuit
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
The utility model discloses a harmonic protector of protection electric wire netting, including zero line N and ground wire PE, its characterized in that: the three wave suppression circuits are connected with a zero line N in parallel, the structures of the three wave suppression circuits are the same, each wave suppression circuit comprises a main circuit and a branch circuit connected with the main circuit in parallel, and a first capacitor, a first inductor and a second inductor are sequentially connected in series on the main circuit from a terminal; a second capacitor is connected in parallel with the second inductor; and a first resistor and a second resistor are sequentially connected in series on the branch from the terminal. The utility model discloses a with electric capacity and inductance with special circuit connection, can restrain the higher harmonic, eliminate the higher harmonic, high frequency noise, pulse peak, interference correction voltage waveform such as surge, electric current waveform.
Description
Technical Field
The utility model belongs to the technical field of electric power, especially, relate to a harmonic protector of protection electric wire netting.
Background
The wide application of a large number of nonlinear loads can bring harmonic pollution to the power grid, and is extremely unfavorable for the safe and reliable operation of the power grid, especially for higher harmonics. When higher harmonics exist in the power supply of some devices with high requirements on the quality of electric energy, such as electronic computers, precision medical instruments, microprocessors, digital devices and the like, the phenomena of program operation errors, data errors, time errors, dead halt, accident-free restart and the like often occur, and even the devices are permanently damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that not enough among the above-mentioned prior art is directed at, provide a harmonic protector of protection electric wire netting, the utility model discloses a with electric capacity and inductance with special circuit connection, can restrain higher harmonic, eliminate higher harmonic, high frequency noise, pulse peak, interference correction voltage waveform such as surge, current waveform.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a harmonic protector of protection electric wire netting, includes zero line N and ground wire PE, its characterized in that: the three wave suppression circuits are connected with a zero line N in parallel, the structures of the three wave suppression circuits are the same, each wave suppression circuit comprises a main circuit and a branch circuit connected with the main circuit in parallel, and a first capacitor, a first inductor and a second inductor are sequentially connected in series on the main circuit from a terminal; a second capacitor is connected in parallel with the second inductor;
and a first resistor and a second resistor are sequentially connected in series on the branch from the terminal.
In the harmonic protector for protecting the power grid, the first inductor is a nano magnetic ring.
Above-mentioned harmonic protector of protection electric wire netting, the second inductance is the amorphous magnetic ring.
Above-mentioned harmonic protector of protection electric wire netting, its characterized in that: and the branch is also connected with a display lamp in series.
Above-mentioned harmonic protector of protection electric wire netting, its characterized in that: and the terminal is connected with a fuse and a switch.
Compared with the prior art, the utility model has the following advantage: the utility model discloses to the random higher harmonic that consumer produced, the pulse peak, surge etc. have suppression and absorption, can effective filtering voltage peak clutter, rectify the voltage waveform of distortion, digest and absorb the harmonic noise, prevent protection device mistake tripping operation, guarantee consumer normal operating. The passive filter used on the power grid side can be supplemented and improved in the aspect of restraining higher-content odd harmonics.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Fig. 2 is a circuit wiring diagram of the utility model in use.
Description of reference numerals:
1 — main path; 2-branch; 3-a first capacitor;
4-a first inductor; 5-a second inductor; 6-a second capacitor;
7-a first resistance; 8-a second resistor; 9-display lamp;
10-a fuse; 11-switch.
Detailed Description
As shown in fig. 1 and fig. 2, a harmonic protector for protecting a power grid includes a null line N and a ground line PE, and further includes three wave suppression circuits (a, B, C) connected in parallel, where the three wave suppression circuits are all connected in parallel with the null line N, and have the same structure, the wave suppression circuit includes a main circuit 1 and a branch circuit 2 connected in parallel with the main circuit 1, and a first capacitor 3, a first inductor 4 and a second inductor 5 are sequentially connected in series on the main circuit 1 from a terminal; a second capacitor 6 is connected in parallel with the second inductor 5;
a first resistor 7 and a second resistor 8 are connected in series on the branch 2 in sequence from the terminal.
The first inductor 4 is a nano magnetic ring.
The second inductor 5 is an amorphous magnetic ring.
And a display lamp 9 is also connected in series on the branch 2.
The terminals are connected with a fuse 10 and a switch 11.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.
Claims (5)
1. The utility model provides a harmonic protector of protection electric wire netting, includes zero line N and ground wire PE, its characterized in that: the three wave suppression circuits are connected with a zero line N in parallel, the structures of the three wave suppression circuits are the same, each wave suppression circuit comprises a main circuit and a branch circuit connected with the main circuit in parallel, and a first capacitor, a first inductor and a second inductor are sequentially connected in series on the main circuit from a terminal; a second capacitor is connected in parallel with the second inductor;
and a first resistor and a second resistor are sequentially connected in series on the branch from the terminal.
2. A harmonic protector for protecting an electrical network in accordance with claim 1, wherein: the first inductor is a nano magnetic ring.
3. A harmonic protector for protecting an electrical network in accordance with claim 1, wherein: the second inductor is an amorphous magnetic ring.
4. A harmonic protector for protecting an electrical network in accordance with claim 1, wherein: and the branch is also connected with a display lamp in series.
5. A harmonic protector for protecting an electrical network in accordance with claim 1, wherein: and the terminal is connected with a fuse and a switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481420.XU CN214013872U (en) | 2020-10-30 | 2020-10-30 | Harmonic protector for protecting power grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022481420.XU CN214013872U (en) | 2020-10-30 | 2020-10-30 | Harmonic protector for protecting power grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214013872U true CN214013872U (en) | 2021-08-20 |
Family
ID=77302074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022481420.XU Active CN214013872U (en) | 2020-10-30 | 2020-10-30 | Harmonic protector for protecting power grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214013872U (en) |
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2020
- 2020-10-30 CN CN202022481420.XU patent/CN214013872U/en active Active
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