CN207502595U - The equivalent circuit that VFTO is calculated - Google Patents
The equivalent circuit that VFTO is calculated Download PDFInfo
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- CN207502595U CN207502595U CN201721466009.7U CN201721466009U CN207502595U CN 207502595 U CN207502595 U CN 207502595U CN 201721466009 U CN201721466009 U CN 201721466009U CN 207502595 U CN207502595 U CN 207502595U
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Abstract
The utility model provides the equivalent circuit that VFTO is calculated, it is characterized in that, switch during including power supply, disconnecting switch, breaker, transformer and arcing, the switch when disconnecting switch and arcing includes input terminal and output terminal, the input terminal of the disconnecting switch is connect with power supply, output terminal is connect with switch input terminal during arcing, and the output switching terminal during arcing has breaker connection.The utility model has given up some unnecessary circuits so that transient overvoltage by setting new equivalent circuit, the prominent factor for generating transient overvoltage（VFTO）Research calculate closer to actual value, calculate more succinct.
Description
Technical field
The utility model belongs to technical field of electric equipment, and in particular to a kind of for the equivalent of generalized information system VFTO calculating
Circuit.
Background technology
During GIS switching manipulations, it can be generated repeatedly again since the speed of contact movement is relatively slow, prebreakdown, Mei Gechong,
The pulse of prebreakdown is propagated all along the bus bar of GIS in contact both sides, and attenuation is very slow, can each wave impedance is not in GIS
Continuous place's folding, reflection, these addition of waveforms together, form overvoltage, and the overvoltage rise time is short, and voltage change is fast,
Occurrence frequency is high, can make GIS pipeline flashovers, equipment damage.The foundation of equivalent circuit is research transient overvoltage（VFTO）Production
Raw and its amplitude basis.
Invention content
Problem to be solved in the utility model and the technical solution provided are the equivalent circuits that a kind of VFTO is calculated.
The technical solution of the utility model is：The equivalent circuit that VFTO is calculated, including power supply, disconnecting switch, breaker, change
Switch when depressor and arcing, the switch when disconnecting switch and arcing includes input terminal and output terminal, described to keep apart
The input terminal of pass is connect with power supply, and output terminal is connect with switch input terminal during arcing, and the output switching terminal during arcing has
Breaker connects.
Preferably, the equivalent circuit that the VFTO is calculated further includes circuit for testing voltage and control circuit.
The beneficial effects of the utility model are：The utility model is prominent to generate transient state mistake by setting new equivalent circuit
The factor of voltage has given up some unnecessary circuits so that transient overvoltage（VFTO）Research calculate closer to actual value,
It calculates more succinct.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Specific embodiment
Clearly complete description is done to the utility model below in conjunction with the accompanying drawings, so that those skilled in the art is not needing to
Under conditions of making creative work, it can fully implement the utility model.
Specific embodiment：As shown in Figure 1, the equivalent circuit that VFTO is calculated, including power supply 1, disconnecting switch 2, breaker
4th, transformer 5 and the switch 3 during arcing, the switch 3 when the disconnecting switch 2 and arcing include input terminal and output terminal, institute
The input terminal for stating disconnecting switch 2 is connect with power supply 1, and output terminal is connect with 3 input terminal of switch during arcing, the opening during arcing
Closing 3 output terminals has breaker 4 to connect.
Preferably, the equivalent circuit that VFTO described in the present embodiment is calculated further includes circuit for testing voltage and control circuit.
The preferred embodiment of the utility model is described above, it should be pointed out that the utility model not office
It is limited to above-mentioned particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as with the common side in this field
Formula is practiced；Any those skilled in the art, in the case where not departing from technical solutions of the utility model ambit, foundation
The technical essence of the utility model any simple modifications, equivalents, and modifications made to the above embodiment still fall within this
In the range of the protection of utility model technical solution.
Claims (2)
- The equivalent circuit that 1.VFTO is calculated, which is characterized in that during including power supply, disconnecting switch, breaker, transformer and arcing Switch, the switch when disconnecting switch and arcing includes input terminal and output terminal, input terminal and the electricity of the disconnecting switch Source connects, and output terminal connect with switch input terminal during arcing, and the output switching terminal during arcing has breaker connection.
- 2. the equivalent circuit that VFTO according to claim 1 is calculated, which is characterized in that the equivalent circuit that the VFTO is calculated Further include circuit for testing voltage and control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466009.7U CN207502595U (en) | 2017-11-07 | 2017-11-07 | The equivalent circuit that VFTO is calculated |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721466009.7U CN207502595U (en) | 2017-11-07 | 2017-11-07 | The equivalent circuit that VFTO is calculated |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207502595U true CN207502595U (en) | 2018-06-15 |
Family
ID=62503479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721466009.7U Active CN207502595U (en) | 2017-11-07 | 2017-11-07 | The equivalent circuit that VFTO is calculated |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207502595U (en) |
-
2017
- 2017-11-07 CN CN201721466009.7U patent/CN207502595U/en active Active
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