CN203984874U - For suppressing the filtering system of transformer station's high frequency high reject signal - Google Patents
For suppressing the filtering system of transformer station's high frequency high reject signal Download PDFInfo
- Publication number
- CN203984874U CN203984874U CN201420289177.3U CN201420289177U CN203984874U CN 203984874 U CN203984874 U CN 203984874U CN 201420289177 U CN201420289177 U CN 201420289177U CN 203984874 U CN203984874 U CN 203984874U
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- interference signal
- transformer station
- filtering system
- suppressing
- changeover portion
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- 238000001914 filtration Methods 0.000 title claims abstract description 19
- 230000011664 signaling Effects 0.000 claims abstract description 16
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims abstract description 9
- 210000000056 organ Anatomy 0.000 claims abstract description 8
- 230000001629 suppression Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 8
- 239000004020 conductor Substances 0.000 claims description 5
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000001052 transient effect Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 241001124569 Lycaenidae Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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Abstract
It is a kind of for suppressing the filtering system of transformer station's high frequency high reject signal that the utility model provides, comprise the interference signal generation device being coupled on remote signalling cable, this interference signal generation device comprises connected successively clock, front changeover portion, parallel-plate section, rear changeover portion and terminal organ, front changeover portion and rear changeover portion are the oblique metallic plate that two relative tilts arrange, and form a working space between parallel-plate section; Also comprise a shielded box and be located at the interference signal harvester in shielded box, shielded box comprises casing and doorframe, and casing is provided with a cut-off waveguide, and doorframe is provided with a finger spring, and remote signalling cable passes successively from finger spring and cut-off waveguide; The probe that interference signal harvester comprises oscilloscope and is connected with oscilloscope.This filtering system can be good at simulating transient electromagnetic pulse to the interference signal that in transformer station, each equipment produces, thereby can draft corresponding interference protection measure according to interference signal, ensures the normal operation of transformer station.
Description
Technical field
The utility model relates to technical field of power systems, particularly relates to a kind of for suppressing the filtering system of transformer station's high frequency high reject signal.
Background technology
Transformer station is some device assembles, and in order to cut off or to connect, to change or to adjust voltage, in electric power system, transformer station is the assembly place of transmission and disttrbution.Equipment in transformer station has switch, transformer, protective device etc.; in the time that transformer station meets thunderbolt or fault or switch; can produce a transient electromagnetic pulse; this transient electromagnetic pulse produces an interference signal to equipment, protective device etc. in transformer station, thereby affects the normal operation of each equipment.In order to ensure the normal operation of each equipment in transformer station, should suppress or eliminate the interference effect of this transient electromagnetic pulse to transformer station.
Utility model content
The defect of prior art and various weak point in view of the above; it is a kind of for suppressing the filtering system of transformer station's high frequency high reject signal that the technical problems to be solved in the utility model is to provide; this filtering system can be simulated the interference effect that transient electromagnetic pulse produces equipment in transformer station and protective device, and then provides strong foundation for eliminating interference effect.
For achieving the above object, it is a kind of for suppressing the filtering system of transformer station's high frequency high reject signal that the utility model provides, comprise the interference signal generation device being coupled on remote signalling cable, this interference signal generation device comprises connected successively clock, front changeover portion, parallel-plate section, rear changeover portion and terminal organ, described front changeover portion and rear changeover portion are the oblique metallic plate that two relative tilts arrange, and between described parallel-plate section, form a working space; Also comprise a shielded box and be located at the interference signal harvester in shielded box, described shielded box comprises casing and doorframe, described casing is provided with a cut-off waveguide, and described doorframe is provided with a finger spring, and described remote signalling cable passes successively from finger spring and cut-off waveguide; The probe that described interference signal harvester comprises oscilloscope and is connected with oscilloscope.
Further, on described remote signalling cable, be also fixed with interference suppression equipment, this interference suppression equipment comprises the shell being made of plastics and establishes high magnetic conductor in the enclosure, and described shell one side is provided with groove, and opposite side is provided with the projection suitable with groove.
Preferably, described probe is also connected in series with a signal pickup assembly attenuator mutually by an adapter.
Further, described clock is two capacitor discharge type clock generators of series connection mutually, and described capacitor discharge type clock generator comprises DC high-voltage source, electric capacity and inductance, and described electric capacity is in parallel with DC high-voltage source, and inductance and high direct voltage are source-series.
Preferably, described terminal organ is two water resistances of 120 ohm parallel with one another.
Preferably, described working space is long is 2.5m, and wide is 2m, and height is 2m.
The filtering system for suppressing transformer station's high frequency high reject signal that the utility model relates to has following beneficial effect:
This filtering system can be good at simulating transient electromagnetic pulse to the interference signal that in transformer station, each equipment produces, thereby can draft corresponding interference protection measure according to interference signal, ensures the normal operation of transformer station.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, below with preferred embodiment of the present utility model and coordinate accompanying drawing to be elaborated to this patent.
Brief description of the drawings
Fig. 1 is the structural representation of interference signal generation device in the utility model.
Fig. 2 is the structural representation of clock in Fig. 1.
Fig. 3 is the structural representation of shielded box in the utility model.
Fig. 4 is the structural representation of interference signal harvester in the utility model.
Fig. 5 is the structural representation of interference suppression equipment in the utility model.
Element numbers explanation
1 interference signal generation device
11 clocks
12 front changeover portions
13 parallel-plate sections
14 rear changeover portions
15 terminal organs
16 working spaces
2 shielded boxes
21 finger springs
22 cut-off waveguides
3 interference signal harvesters
31 oscilloscopes
32 probes
33 signal pickup assembly attenuators
4 interference suppression equipments
41 shells
42 high magnetic conductors
43 grooves
44 projections
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in Figure 1, it is a kind of for suppressing the filtering system of transformer station's high frequency high reject signal that the utility model provides, comprise the interference signal generation device 1 being coupled on remote signalling cable, this interference signal generation device 1 comprises connected successively clock 11, front changeover portion 12, parallel-plate section 13, rear changeover portion 14 and terminal organ 15, described front changeover portion 12 and rear changeover portion 14 are the oblique metallic plate that two relative tilts arrange, between described parallel-plate section 13, form a working space 16, preferably, described working space 16 is long is 2.5m, wide is 2m, and height is 2m; Also comprise a shielded box 2 and be located at the interference signal harvester 3 in shielded box 2, see Fig. 3 and Fig. 4, described shielded box 2 comprises casing and doorframe, described casing is provided with a cut-off waveguide 22, described doorframe is provided with a finger spring 21, and described remote signalling cable passes successively from finger spring 21 and cut-off waveguide 22; The probe 32 that described interference signal harvester 3 comprises oscilloscope 31 and is connected with oscilloscope 31.
In this filtering system, the clock 11 of interference signal generation device 1 is for generation of high frequency strong-electromagnetic field, with simulation thunderbolt, fault, the transient electromagnetic pulse producing in converting station electric power system when switch, High-frequency Interference is coupled this high frequency strong-electromagnetic field simultaneously on remote signalling cable, this interference signal reduces through popping one's head in after 32, finally enter into the interference signal harvester 3 that is positioned at shielded box 2, be used for the collection of interference signal, storage and demonstration, described oscilloscope 31 preferably adopts TEK TPS2024 oscilloscope, this oscilloscope has four passages, can gather thinking interference signal simultaneously and show, raise the efficiency.Described shielded box 2 enters a certain region for preventing outside radiation electric magnetic energy, the interference signal harvester 3 of interference shielding case 2 inside, thus ensure that 3 measurements of interference signal harvester are accurate and do not damage; After finger spring 21 on described doorframe ensures to close and visits, radio frequency interference is had to shielding left and right, can keep in touch the radio shielding integrality of face; Cut-off waveguide 22 on casing ensure waveguide with respect to the radio frequency that will shield in cut-off state.
In addition, the high frequency strong-electromagnetic field that interference signal generation device 1 produces interference magnitude on remote signalling cable is larger, can produce certain impact to final measurement result, therefore in the utility model, on described remote signalling cable, be also fixed with interference suppression equipment 4, see Fig. 5, this interference suppression equipment 4 comprises the shell 41 being made of plastics and is located at the high magnetic conductor 42 in shell 41, described shell 41 1 sides are provided with groove 43, and opposite side is provided with the projection 44 suitable with groove 43.Cooperatively interacting and this interference suppression equipment 4 can be stuck on the heart yearn of remote signalling cable by shell 41 upper grooves 43 and projection 44, described interference suppression equipment 4 is equivalent to a resistance and an inductance, inductance can suppress the steepness of interference signal, and the ability of interference signal is stored, resistance can consume the energy of interference signal, and distribute with the form of heat, therefore high magnetic conductor 42 can suppress amplitude and the steepness of interference signal, thereby suppresses the interference signal producing in remote signalling cable.
Preferably, due to interference signal generation device 1, to be coupled to interference on remote signalling cable very large, exceeded the measuring range of interference signal harvester 3, therefore in the present embodiment, as shown in Figure 4, described probe 32 is also connected in series with a signal pickup assembly attenuator 33 mutually by an adapter.Described signal pickup assembly attenuator 33 can be decayed interference signal 10 times, and probe 32 itself also can be decayed interference signal 10 times, after therefore both are connected in series by adapter, interference signal can be decayed to 100 times, interference signal after decay directly enters interference signal harvester 3, the multiplication factor of now adjusting interference signal harvester 3 is 100 times, and the shown signal of interference signal harvester 3 is actual interference signal.
Further, see Fig. 2, described clock 11 is two capacitor discharge type clock generators of series connection mutually, described capacitor discharge type clock generator comprises DC high-voltage source, capacitor C and inductance L s, described electric capacity is in parallel with DC high-voltage source, inductance and high direct voltage are source-series, and it is the RLC discharged in series loop of a standard, and the equation of circuit is
capacitor C mutually noninductive by DC high-voltage source or low inductance charges to U0, then under trigger condition, discharge by switch phase load, the voltage peak that clock 11 is exported can be up to 120KV, and adjustable continuously, therefore can be in the 16 interior formation of grow × wide × height=2.5m × 2.0m × 2.0m working space the peak electric field up to 50KV/m, the shortest 2.5ns that reaches of rising edge of pulse, waveform width 20ns-30ns, E field polarization direction is vertically upward.
Preferably, described terminal organ 15 is two water resistances of 120 ohm parallel with one another.
In sum, the utility model has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
What above the utility model embodiment is provided is a kind ofly described in detail for the filtering system that suppresses transformer station's high frequency high reject signal; for one of ordinary skill in the art; according to the thought of the utility model embodiment; all will change in specific embodiments and applications; in sum; this description should not be construed as restriction of the present utility model, and all any changes of making according to the utility model design philosophy are all within protection range of the present utility model.
Claims (6)
1. one kind for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: comprise the interference signal generation device (1) being coupled on remote signalling cable, this interference signal generation device (1) comprises connected successively clock (11), front changeover portion (12), parallel-plate section (13), rear changeover portion (14) and terminal organ (15), described front changeover portion (12) and rear changeover portion (14) are the oblique metallic plate that two relative tilts arrange, and form a working space (16) between described parallel-plate section (13); Also comprise a shielded box (2) and be located at the interference signal harvester (3) in shielded box (2), described shielded box (2) comprises casing and doorframe, described casing is provided with a cut-off waveguide (22), described doorframe is provided with a finger spring (21), and described remote signalling cable passes successively from finger spring (21) and cut-off waveguide (22); The probe (32) that described interference signal harvester (3) comprises oscilloscope (31) and is connected with oscilloscope (31).
2. according to claim 1 for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: on described remote signalling cable, be also fixed with interference suppression equipment (4), this interference suppression equipment (4) comprises the shell (41) being made of plastics and is located at the high magnetic conductor (42) in shell (41), described shell (41) one sides are provided with groove (43), and opposite side is provided with the projection (44) suitable with groove (43).
3. according to claim 1 for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: described probe (32) is also connected in series with a signal pickup assembly attenuator (33) mutually by an adapter.
4. according to claim 1 for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: described clock (11) is two capacitor discharge type clock generators of series connection mutually, described capacitor discharge type clock generator comprises DC high-voltage source, electric capacity and inductance, described electric capacity is in parallel with DC high-voltage source, and inductance and high direct voltage are source-series.
5. according to claim 1 for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: described terminal organ (15) is two water resistances of 120 ohm parallel with one another.
6. according to claim 1 for suppressing the filtering system of transformer station's high frequency high reject signal, it is characterized in that: described working space (16) is long is 2.5m, and wide is 2m, and height is 2m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289177.3U CN203984874U (en) | 2014-05-30 | 2014-05-30 | For suppressing the filtering system of transformer station's high frequency high reject signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420289177.3U CN203984874U (en) | 2014-05-30 | 2014-05-30 | For suppressing the filtering system of transformer station's high frequency high reject signal |
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| Publication Number | Publication Date |
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| CN203984874U true CN203984874U (en) | 2014-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420289177.3U Expired - Lifetime CN203984874U (en) | 2014-05-30 | 2014-05-30 | For suppressing the filtering system of transformer station's high frequency high reject signal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188326A (en) * | 2014-05-30 | 2015-12-23 | 国家电网公司 | Filtering system for inhibiting high-frequency strong interference signal of transformer station |
-
2014
- 2014-05-30 CN CN201420289177.3U patent/CN203984874U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105188326A (en) * | 2014-05-30 | 2015-12-23 | 国家电网公司 | Filtering system for inhibiting high-frequency strong interference signal of transformer station |
| CN105188326B (en) * | 2014-05-30 | 2018-01-16 | 国家电网公司 | For suppressing the filtering system of transformer station's high frequency high reject signal |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141203 Effective date of abandoning: 20180116 |