CN206960539U - The harmonic elimination apparatus of capacitance type potential transformer - Google Patents
The harmonic elimination apparatus of capacitance type potential transformer Download PDFInfo
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- CN206960539U CN206960539U CN201621339076.8U CN201621339076U CN206960539U CN 206960539 U CN206960539 U CN 206960539U CN 201621339076 U CN201621339076 U CN 201621339076U CN 206960539 U CN206960539 U CN 206960539U
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- harmonic elimination
- capacitance type
- type potential
- potential transformer
- resistance
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Abstract
The utility model discloses a kind of harmonic elimination apparatus of capacitance type potential transformer, including air switch and harmonic elimination resistance, the secondary side of capacitance type potential transformer is accessed after air switch and harmonic elimination resistant series, so as to carry out harmonic elimination to it.Because using resistance, to carrying out harmonic elimination, wiring is simple, device is portable, chooses suitable resistance, you can effectively eliminate the resonance of the 0.005H type capacitance type potential transformers of TYD220/ √ 3.
Description
Technical field
It the utility model is related to electrical equipment technical field, and in particular to a kind of harmonic elimination dress of capacitance type potential transformer
Put.
Background technology
Xi'an Xi electricity power capacitors Co., Ltd 1996 produce per year 3-0.005H of TYD220/ √ (T --- it is complete
Formula；YD --- capacitance type potential transformer；220/ √ 3 --- specified phase voltage kV；0.005 --- rated capacity (microfarad)；
H --- filthy area use) for type capacitance type potential transformer using pair Quick saturation dampers, two dampers are connected on main two respectively
Carry out suppressing resonance generation on secondary 2# windings and residual voltage winding.
The Quick saturation damper of above-mentioned capacitance type potential transformer is in series by fast saturable reactor and damping resistance,
Product normal work speed per hour saturable reactor is in undersaturated high impedance status, by the electric current very little of resistance, when occurring
Secondary voltage is raised during resonance, and more than the operation voltage of Quick saturation damper, fast saturable reactor iron core is entered by undersaturated condition
Enter saturation state, after saturation impedance diminish, become big by the electric current of resistance, resistance consumption resonant energy suppresses resonance to reach
Purpose.
The said equipment is also easy to produce the reason for internal transient state ferromagnetic resonance：When Fig. 1 is capacitance type potential transformer resonance etc.
Circuit diagram is imitated, C1, C2 are respectively high and medium voltage electric capacity, and L is compensation reactor.Become reactance value in assuming that as L0, work as L+L0=
Resonance occurs for equivalent circuit when 1/ (ω ^2 (C1+C2)), under power frequency equivalent circuit can not possibly resonance, the but (line in transient process
Overvoltage of road switching or other reasonses etc.) intermediate transformer iron core saturation L0 declines, then it is easily caused capacitance type potential transformer
Generation resonance.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of harmonic elimination of capacitance type potential transformer
Device, to eliminate resonance.
To achieve these goals, the utility model adopts the technical scheme that：
A kind of harmonic elimination apparatus of capacitance type potential transformer, it is characterised in that
Including air switch and harmonic elimination resistance；
The secondary side of capacitance type potential transformer is accessed after air switch and the harmonic elimination resistant series；
The capacitance type potential transformer is the capacitance type potential transformer of TYD220/ √ 3-0.005H types；
The air switch is air switch of the rated current in below 10A, and the harmonic elimination resistance is 15-25 Ω electricity
Resistance.
The utility model carries out harmonic elimination using resistance to capacitance type potential transformer, and wiring is simple, device is portable, using conjunction
Suitable resistance, you can effectively eliminate the resonance of TYD220/ √ 3-0.005H type capacitance type potential transformers.
Brief description of the drawings
Fig. 1 is equivalent circuit diagram when resonance occurs for TYD220/ √ 3-0.005H types capacitance type potential transformer；
Fig. 2 is the electrical schematic diagram of the harmonic elimination apparatus of the utility model capacitance type potential transformer.
Embodiment
The utility model is further described with reference to embodiment.
The harmonic elimination apparatus of the utility model capacitance type potential transformer, as shown in Fig. 2 including air switch K and harmonic elimination electricity
Hinder R.
Air switch K and harmonic elimination resistance R series connection, a ends of formation and n are terminated into the secondary of capacitance type potential transformer
Side, the capacitance type potential transformer are the capacitance type potential transformer of TYD220/ √ 3-0.005H types.Air switch K is volume
Determine air switch of the electric current in below 10A, harmonic elimination resistance R is 15-25 Ω resistance.
, will when finding its secondary voltage resonance fluctuation for TYD220/ √ 3-0.005H type capacitance type potential transformers
Air switch K is closed, so as to which the secondary side of this harmonic elimination apparatus access TYD220/ √ 3-0.005H type capacitance type potential transformers enters
Row harmonic elimination, until resonance eliminates, air switch K disconnects, and conclusion (of pressure testing) typically eliminates the time at several seconds to tens seconds, effectively
Eliminate the ferromagnetic resonance of the type transformer under 0.8Upr~1.2Upr voltages.
Through repetition test, when harmonic elimination resistance R resistance is 20 Ω, TYD220/ √ 3-0.005H type capacitor voltages are mutual
The harmonic elimination best results of sensor.
To the transformer of different model, its harmonic elimination resistance also can using and connect harmonic elimination carried out in the form of harmonic elimination resistance, but respectively
Type harmonic elimination resistance value preferably passes through verification experimental verification progress, to change corresponding resonance eliminator resistance.
Above-listed detailed description is illustrating for the utility model possible embodiments, and the embodiment simultaneously is not used to limit
The scope of the claims of the present utility model, all equivalence enforcements or change without departing from carried out by the utility model, it is intended to be limited solely by this case
In the scope of the claims.
Claims (2)
- A kind of 1. harmonic elimination apparatus of capacitance type potential transformer, it is characterised in thatIncluding air switch and harmonic elimination resistance；The secondary side of capacitance type potential transformer is accessed after air switch and the harmonic elimination resistant series；The capacitance type potential transformer is the capacitance type potential transformer of TYD220/ √ 3-0.005H types；The air switch is air switch of the rated current in below 10A, and the harmonic elimination resistance is 15-25 Ω resistance.
- 2. the harmonic elimination apparatus of capacitance type potential transformer according to claim 1, it is characterised in thatThe resistance of the harmonic elimination resistance is 20 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339076.8U CN206960539U (en) | 2016-12-08 | 2016-12-08 | The harmonic elimination apparatus of capacitance type potential transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621339076.8U CN206960539U (en) | 2016-12-08 | 2016-12-08 | The harmonic elimination apparatus of capacitance type potential transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206960539U true CN206960539U (en) | 2018-02-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621339076.8U Active CN206960539U (en) | 2016-12-08 | 2016-12-08 | The harmonic elimination apparatus of capacitance type potential transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206960539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031662A (en) * | 2019-06-04 | 2019-07-19 | 国网新疆电力有限公司公司哈密供电公司 | One kind exempting from humorous formula voltage transformer |
| CN110323731A (en) * | 2019-07-03 | 2019-10-11 | 张安斌 | Voltage transformer primary side neutral point controllable impedance harmonic elimination apparatus |
-
2016
- 2016-12-08 CN CN201621339076.8U patent/CN206960539U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110031662A (en) * | 2019-06-04 | 2019-07-19 | 国网新疆电力有限公司公司哈密供电公司 | One kind exempting from humorous formula voltage transformer |
| CN110031662B (en) * | 2019-06-04 | 2021-03-02 | 国网新疆电力有限公司公司哈密供电公司 | Harmonic-free voltage transformer |
| CN110323731A (en) * | 2019-07-03 | 2019-10-11 | 张安斌 | Voltage transformer primary side neutral point controllable impedance harmonic elimination apparatus |
| CN110323731B (en) * | 2019-07-03 | 2021-05-11 | 张安斌 | Voltage transformer primary side neutral point controllable impedance resonance elimination device |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yunnan Yinghao Technology Co.,Ltd. Assignor: QUJING BUREAU OF SUPERVOLTAGE POWER TRANSMISSION Co.,Ltd. CHINA SOUTHERN POWER GRID Contract record no.: X2023990000234 Denomination of utility model: Harmonic elimination device of capacitive voltage transformer Granted publication date: 20180202 License type: Common License Record date: 20230222 |