CN220040636U - Portable partial discharge simulation discharge source - Google Patents
Portable partial discharge simulation discharge source Download PDFInfo
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- CN220040636U CN220040636U CN202320464793.7U CN202320464793U CN220040636U CN 220040636 U CN220040636 U CN 220040636U CN 202320464793 U CN202320464793 U CN 202320464793U CN 220040636 U CN220040636 U CN 220040636U
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- 238000004088 simulation Methods 0.000 title abstract description 14
- 238000004146 energy storage Methods 0.000 claims description 23
- 238000001514 detection method Methods 0.000 claims description 16
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a portable partial discharge simulation discharge source, which comprises an outer shell, a rechargeable battery, a switch, a transformer, an ignition circuit and a needle-needle electrode, wherein the rechargeable battery is arranged on the outer shell; the rechargeable battery, the switch, the transformer, the ignition circuit and the needle-needle electrode are respectively welded and installed on the outer surface of the outer shell and are electrically connected with each other. The utility model controls the on-off of the alternating current power supply of the rechargeable battery through the switch, further controls the controllable silicon to trigger the transformer to generate corresponding pulses, generates pulse change and further changes the generation state of the ignition circuit, so that the needle-needle electrode is caused to generate intermittent discharge with a certain frequency to simulate the generation of the internal point discharge of the electrical equipment, thereby generating ultrahigh frequency and ultrasonic signals to simulate the generation of the internal discharge signal of the GIS, and when the 220V alternating current rechargeable battery is adopted, the discharge simulation source does not need to be externally connected with an alternating current 220V power supply, and the utility model is convenient to carry and operate, and realizes the portability of the partial discharge simulation discharge source.
Description
Technical Field
The utility model relates to the field of discharge technology simulation, in particular to a portable partial discharge simulation discharge source.
Background
Because the local discharge analog discharge source in the current power industry needs an external 220V power supply, the use place and the use space are severely limited, and most analog discharge sources have only a single function, only ultrahigh frequency can be measured, and ultrasonic waves cannot be measured.
Disclosure of Invention
The utility model aims to provide a portable partial discharge simulation discharge source, which controls the on-off of an alternating current power supply of a movable rechargeable battery through a switch, further controls a controllable silicon trigger transformer to generate corresponding pulse, generates pulse change to change the generation state of an ignition circuit, causes a needle-needle electrode to generate intermittent discharge with a certain frequency, simulates the generation of point discharge in an electric device, generates ultrahigh frequency and ultrasonic signals, simulates the generation of discharge signals in a GIS,
the utility model is realized by the following technical scheme:
a portable partial discharge analog discharge source comprising:
the device comprises an outer shell, a rechargeable battery, a switch, a transformer, an ignition circuit and a needle-needle electrode;
the rechargeable battery, the switch, the transformer, the ignition circuit and the needle-needle electrode are respectively welded and installed on the outer surface of the outer shell and are electrically connected with each other;
the ignition circuit comprises an ignition circuit control chip, a voltage conversion chip, an energy storage circuit and a serial ignition circuit, wherein the voltage conversion chip is connected with the energy storage circuit, the energy storage circuit is connected with the serial ignition circuit, the serial ignition circuit is provided with a first ignition circuit, an ignition element and a second ignition circuit, two ends of the ignition element are respectively connected with the first ignition circuit and the second ignition circuit, the ignition circuit control chip is provided with a first ignition control end and a second ignition control end, the first ignition control end is connected with the first ignition circuit, the second ignition control end is connected with the second ignition circuit, and a control voltage signal of the first ignition control end is opposite to a control voltage signal of the second ignition control end.
As an alternative, the transformer is a thyristor triggered transformer.
As an alternative, the ignition circuit control chip is further provided with an ignition element voltage detection terminal, and the ignition element voltage detection terminal is connected with the ignition element.
As an alternative way, the ignition circuit control chip is further provided with an ignition voltage detection end, and the ignition voltage detection end is connected with the energy storage circuit.
As an alternative mode, the first ignition circuit comprises an NPN triode and a P channel MOS tube, the B pole of the NPN triode is connected with the first ignition control end, the E pole of the NPN triode is connected with the G pole of the P channel MOS tube, the C pole of the NPN triode is grounded, the S pole of the P channel MOS tube is connected with the energy storage circuit, and the D pole of the P channel MOS tube is connected with the ignition element.
As an alternative mode, a first current-limiting resistor is arranged between the B pole of the NPN triode and the first ignition control end, a second current-limiting resistor is arranged between the G pole of the P channel MOS tube and the S pole of the P channel MOS tube, and a fourth current-limiting resistor is arranged between the S pole of the P channel MOS tube and the D pole of the P channel MOS tube.
As an alternative mode, the second ignition circuit is provided with an N-channel MOS tube, the G pole of the N-channel MOS tube is connected with the second ignition control end, the S pole of the N-channel MOS tube is grounded, and the D pole of the N-channel MOS tube is connected with the ignition element.
As an alternative, a third current limiting resistor is arranged between the S pole of the N-channel MOS transistor and the D pole of the N-channel MOS transistor.
As an alternative, the energy storage circuit is formed by connecting one energy storage capacitor or a plurality of energy storage capacitors in parallel.
As an alternative, the rechargeable battery is a 220V ac rechargeable battery.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the novel rechargeable battery that uses has replaced traditional AC 220V power that needs external to this simulation discharge source can produce ultrasonic wave and superfrequency signal simultaneously, not only makes convenient to use and convenience obtain very big improvement, also makes detecting instrument can detect more partial discharge signal except superfrequency. The portability of the partial discharge simulation discharge source is realized, the discharge simulation source does not need to be externally connected with an alternating current 220V power supply, the carrying is convenient, the operation is convenient, the ultra-high frequency and ultrasonic signals are generated, and the difficulties in the aspects of field application, worker related skill training and the like are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model. In the drawings:
FIG. 1 is a schematic diagram of a portable partial discharge simulated discharge source according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of an ignition circuit according to an embodiment of the present utility model.
In the drawings, the reference numerals and corresponding part names:
1-shell, 2-rechargeable battery, 3-switch, 4-silicon controlled trigger transformer, 5-ignition circuit, 6-needle electrode.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Examples
Referring to fig. 1-2, the present embodiment provides a portable partial discharge analog discharge source, which includes: the device comprises an outer shell, a rechargeable battery, a switch, a transformer, an ignition circuit and a needle-needle electrode; the rechargeable battery, the switch, the transformer, the ignition circuit and the needle-needle electrode are respectively welded and installed on the outer surface of the outer shell and are electrically connected with each other; the ignition circuit comprises an ignition circuit control chip, a voltage conversion chip, an energy storage circuit and a serial ignition circuit, wherein the voltage conversion chip is connected with the energy storage circuit, the energy storage circuit is connected with the serial ignition circuit, the serial ignition circuit is provided with a first ignition circuit, an ignition element and a second ignition circuit, two ends of the ignition element are respectively connected with the first ignition circuit and the second ignition circuit, the ignition circuit control chip is provided with a first ignition control end and a second ignition control end, the first ignition control end is connected with the first ignition circuit, the second ignition control end is connected with the second ignition circuit, and a control voltage signal of the first ignition control end is opposite to a control voltage signal of the second ignition control end.
The present embodiment is realized as follows: when partial discharge occurs in the power equipment such as GIS or transformer, the detection method mainly comprises an ultrasonic detection method and an ultrahigh frequency detection method. This is because the occurrence of partial discharge generates corresponding ultrasonic waves and uhf signals. The partial discharge simulation generating source generates corresponding ultrahigh frequency and ultrasonic signals through needle-needle electrode discharge, and the generated signals can be acquired and diagnosed through ultrahigh frequency and ultrasonic detection equipment, so that the generation of partial discharge inside the equipment is simulated. Therefore, when the rechargeable battery is a 220V alternating current rechargeable battery, the discharge simulation source does not need to be externally connected with an alternating current 220V power supply, the portable type alternating current rechargeable battery is convenient to carry and fast to operate, and portability of the partial discharge simulation discharge source is realized. And the ultra-high frequency and ultrasonic signals are generated, so that the difficulties in the aspects of field application, related skill training of workers and the like are solved.
Referring to fig. 2 again, in this embodiment, the ignition circuit control chip adopts an STM32F103 single chip microcomputer, so as to control the voltage and the ignition timing of the first ignition control terminal F1 and the second ignition control terminal F2. The voltage conversion chip adopts an AC-DC module, and can convert the system power supply voltage into the voltage required by ignition of the ignition element. The energy storage circuit is formed by connecting an energy storage capacitor C1 or a plurality of energy storage capacitors C1, C2, … … and Cn in parallel. The system is powered on to store energy, ignition energy can be provided in a short time when the ignition element ignites, and the quantity of the energy storage capacitors and the total capacitance value are calculated or simulated according to ignition parameters of the ignition element. The first ignition circuit and the second ignition circuit respectively control two ends of the ignition element, and both the first ignition circuit and the second ignition circuit conduct the ignition element to ignite.
In this embodiment, the first ignition circuit includes an NPN type triode Q2 and a P-channel MOS tube Q3, a B pole of the NPN type triode is connected to the first ignition control end, an E pole of the NPN type triode is connected to a G pole of the P-channel MOS tube, a C pole of the NPN type triode is grounded, an S pole of the P-channel MOS tube is connected to the tank circuit, and a D pole of the P-channel MOS tube is connected to the ignition element. A first current limiting resistor R1 is arranged between the B pole of the NPN triode and the first ignition control end, a second current limiting resistor R2 is arranged between the G pole of the P channel MOS tube and the S pole of the P channel MOS tube, and a fourth current limiting resistor R4 is arranged between the S pole of the P channel MOS tube and the D pole of the P channel MOS tube.
The second ignition circuit is provided with an N-channel MOS tube Q1, the G pole of the N-channel MOS tube is connected with the second ignition control end, the S pole of the N-channel MOS tube is grounded, and the D pole of the N-channel MOS tube is connected with the ignition element. And a third current limiting resistor R3 is arranged between the S pole of the N-channel MOS tube and the D pole of the N-channel MOS tube. Thus, when the second ignition control end F2 is at a low level, the N-channel MOS transistor Q1 is in an off state; when the second ignition control end F2 is at a high level, the N-channel MOS transistor Q1 is in a conducting state. When the first ignition control end F1 is at a low level and the second ignition control end F2 is at a high level, the control voltage signals of the two ignition control ends are opposite, and the first ignition circuit and the second ignition circuit are both conducted. The ignition circuit control chip adopts opposite control voltage signals to two paths of ignition signals in the serial ignition circuit, so that when the ignition circuit control chip fails, the first ignition control end F1 and the second ignition control end F2 are reset to be in a high level or a low level, and the abnormal ignition probability of the ignition element can be effectively reduced.
In addition, as the ignition element is a disposable device, the existing ignition circuit pair can only determine whether the system is normal or not by detecting the resistance value of the energy storage capacitor, but can not detect whether the ignition circuit can work normally or not, so that the system is normal in detection but the ignition element can not be started normally due to the fault of the ignition circuit. The ignition circuit control chip is also provided with an ignition element voltage detection end, one end of the ignition element voltage detection end is connected with the ignition element, and the other end of the ignition element voltage detection end is connected with the energy storage circuit. Thereby detecting whether the ignition circuit can work normally.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A portable partial discharge analog discharge source, comprising:
the device comprises an outer shell, a rechargeable battery, a switch, a transformer, an ignition circuit and a needle-needle electrode;
the rechargeable battery, the switch, the transformer, the ignition circuit and the needle-needle electrode are respectively welded and installed on the outer surface of the outer shell and are electrically connected with each other;
the ignition circuit comprises an ignition circuit control chip, a voltage conversion chip, an energy storage circuit and a serial ignition circuit, wherein the voltage conversion chip is connected with the energy storage circuit, the energy storage circuit is connected with the serial ignition circuit, the serial ignition circuit is provided with a first ignition circuit, an ignition element and a second ignition circuit, two ends of the ignition element are respectively connected with the first ignition circuit and the second ignition circuit, the ignition circuit control chip is provided with a first ignition control end and a second ignition control end, the first ignition control end is connected with the first ignition circuit, the second ignition control end is connected with the second ignition circuit, and a control voltage signal of the first ignition control end is opposite to a control voltage signal of the second ignition control end.
2. The portable partial discharge analog discharge source of claim 1, wherein the transformer is a thyristor-triggered transformer.
3. The portable partial discharge analog discharge source of claim 1, wherein the ignition circuit control chip is further provided with an ignition element voltage detection terminal, the ignition element voltage detection terminal being connected to the ignition element.
4. A portable partial discharge analog discharge source according to claim 3, wherein said ignition circuit control chip is further provided with an ignition voltage detection terminal, said ignition voltage detection terminal being connected to said tank circuit.
5. The portable partial discharge analog discharge source of claim 4, wherein the first ignition circuit comprises an NPN transistor and a P-channel MOS transistor, wherein a B pole of the NPN transistor is connected to the first ignition control terminal, an E pole of the NPN transistor is connected to a G pole of the P-channel MOS transistor, a C pole of the NPN transistor is grounded, an S pole of the P-channel MOS transistor is connected to the tank circuit, and a D pole of the P-channel MOS transistor is connected to the ignition element.
6. The portable partial discharge analog discharge source according to claim 5, wherein a first current limiting resistor is arranged between the B pole of the NPN triode and the first ignition control end, a second current limiting resistor is arranged between the G pole of the P channel MOS tube and the S pole of the P channel MOS tube, and a fourth current limiting resistor is arranged between the S pole of the P channel MOS tube and the D pole of the P channel MOS tube.
7. The portable partial discharge analog discharge source of claim 6, wherein the second ignition circuit is provided with an N-channel MOS tube, a G-pole of the N-channel MOS tube is connected to the second ignition control terminal, an S-pole of the N-channel MOS tube is grounded, and a D-pole of the N-channel MOS tube is connected to the ignition element.
8. The portable partial discharge analog discharge source of claim 7, wherein a third current limiting resistor is provided between the S pole of the N-channel MOS tube and the D pole of the N-channel MOS tube.
9. The portable partial discharge analog discharge source of claim 8, wherein the energy storage circuit is comprised of an energy storage capacitor or a plurality of energy storage capacitors in parallel.
10. A portable partial discharge analog discharge source according to claim 1, wherein said rechargeable battery is a 220V ac rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320464793.7U CN220040636U (en) | 2023-03-13 | 2023-03-13 | Portable partial discharge simulation discharge source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320464793.7U CN220040636U (en) | 2023-03-13 | 2023-03-13 | Portable partial discharge simulation discharge source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220040636U true CN220040636U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320464793.7U Active CN220040636U (en) | 2023-03-13 | 2023-03-13 | Portable partial discharge simulation discharge source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220040636U (en) |
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2023
- 2023-03-13 CN CN202320464793.7U patent/CN220040636U/en active Active
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