CN208432716U - Counter calibration circuit and device - Google Patents
Counter calibration circuit and device Download PDFInfo
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- CN208432716U CN208432716U CN201820275188.4U CN201820275188U CN208432716U CN 208432716 U CN208432716 U CN 208432716U CN 201820275188 U CN201820275188 U CN 201820275188U CN 208432716 U CN208432716 U CN 208432716U
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- discharge counter
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- 208000025274 Lightning injury Diseases 0.000 description 3
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- 238000001514 detection method Methods 0.000 description 3
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Abstract
The utility model provides a counter check-up circuit and device relates to electric wire netting technical field, can promote the accuracy that detects the counter that discharges. Wherein, counter check circuit includes: an impulse current unit, a power supply unit; the power supply unit is connected with the impact current unit, the impact current unit is used for generating impact current, the impact current is used for detecting a discharge counter, and the generated impact current is consistent with the current characteristic of the discharge counter.
Description
Technical field
The utility model relates to electric power network technique field more particularly to a kind of COUNTER CHECK circuits and device.
Background technique
In power transmission and transformation system, arrester is the protective device for protecting power transmission and transforming equipment to damage from overvoltage.Arrester
Discharge counter can monitor the leakage current of arrester, and count the number of lightning strokes of arrester.Wherein, the leakage of arrester
Electric current can reflect the working performance of arrester.
The performance of discharge counter is detected in general, discharge counter calibration equipment can be used, passes through verification
Discharge counter tends to the leakage current and number of lightning strokes that accurately record arrester.But due to the prior art
In COUNTER CHECK device the wave head wave rear time it is longer, even if by verification discharge counter, it is also possible to due to electricity
Stream waveform is not met with calibration equipment, leads to each movement that arrester can not be recorded in follow-up operation.
Utility model content
The utility model provides a kind of COUNTER CHECK circuit and device, can be when verifying discharge counter, according to putting
The current waveform of electric counter is specific, by the specific function of current in discharge counter, so that the motion detection of discharge counter
As a result more accurate.
In order to achieve the above objectives, the utility model adopts the following technical solution:
In a first aspect, the utility model provides a kind of COUNTER CHECK circuit, which may include: dash current list
Member, power supply unit.
Wherein, the power supply unit is connect with the dash current unit, and the dash current unit is for generating impact
Electric current, the dash current is for detecting discharge counter, the electric current of the dash current of the generation and the discharge counter
Characteristic is consistent.
Illustratively, power supply unit can use the high voltage power supply of 10kV.
It optionally, should be right in order to enable the impact circuit that checking circuit generates can effectively detect discharge counter
The amplitude for inputting the dash current of discharge counter amplifies, and therefore, can dispose in the checking circuit of the utility model
Output signal amplifying unit.Specifically, the output end of the input terminal of output signal amplifying unit and the dash current unit connects
It connects.
Illustratively, output signal amplifying unit can use AMP IC amplifier.
COUNTER CHECK circuit provided by the utility model, the current characteristics that can produce in discharge counter are consistent
Dash current, as discharge counter provide the dash current that agrees with, so that discharge counter is under the dash current agreed with, energy
It is enough accurately to carry out counting action, or under the dash current agreed with, without counting action, i.e. the utility model can be obtained
To accurate working condition of the discharge counter under the dash current agreed with, the accuracy of discharge counter verification is improved.
In a kind of possible design, the dash current unit is RLC second order dash current unit.The RLC second order
Dash current unit includes tandem type second order dash current unit and parallel connection type second order dash current unit.
In a kind of possible design, the dash current that dash current unit generates includes 1/5us, 8/20us, 30/60 μ s
Dash current.
Second aspect, the utility model provide a kind of COUNTER CHECK device, calibration equipment include above-mentioned first aspect with
And any one in each possible design of first aspect or circuit.
The beneficial effect of COUNTER CHECK device provided by the utility model and counter provided by the utility model
The beneficial effect of checking circuit is identical, and details are not described herein again.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of COUNTER CHECK circuit provided by the embodiment of the utility model；
Fig. 2 a is the schematic diagram one of impulse current waveform provided by the embodiment of the utility model；
Fig. 2 b is the schematic diagram two of impulse current waveform provided by the embodiment of the utility model；
Fig. 2 c is the schematic diagram three of impulse current waveform provided by the embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawing to mobile network UDP traffic congestion processing method provided by the embodiment of the utility model, device
And system is described in detail.
The terms "and/or", only a kind of incidence relation for describing affiliated partner, indicates that there may be three kinds of passes
System, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.
In addition, the term " includes " being previously mentioned in the description of the utility model and " having " and their any deformation,
It is intended to cover and non-exclusive includes.Such as it contains the process, method of a series of steps or units, system, product or sets
It is standby to be not limited to listed step or unit, but optionally further comprising the step of other are not listed or unit, or can
Selection of land further includes the other step or units intrinsic for these process, methods, product or equipment.
It should be noted that in the utility model embodiment, " illustrative " or " such as " etc. words make example for indicating
Son, illustration or explanation.Be described as in the utility model embodiment " illustrative " or " such as " any embodiment or set
Meter scheme is not necessarily to be construed as than other embodiments or design scheme more preferably or more advantage.Specifically, it uses " exemplary
" or " such as " etc. words be intended to that related notion is presented in specific ways.
In the description of the present invention, unless otherwise indicated, the meaning of " plurality " is refer to two or more.
In order to solve the problem of that COUNTER CHECK device can not accurately verify discharge counter in the prior art, this is practical
Novel to provide a kind of COUNTER CHECK circuit, which may include: dash current unit, power supply unit.
Wherein, the power supply unit is connect with the dash current unit, and the dash current unit is for generating impact
Electric current, the dash current is for detecting discharge counter, the electric current of the dash current of the generation and the discharge counter
Characteristic is consistent.
Illustratively, power supply unit can use the high voltage power supply of 10kV.
Optionally, in order to realize the control to checking circuit, switch unit can be disposed in checking circuit, it is exemplary
Ground, switch unit can use ignition switch, can use the ignition switch of such as long-stroke push-and-pull formula magnet control.
It optionally, should be right in order to enable the impact circuit that checking circuit generates can effectively detect discharge counter
The amplitude for inputting the dash current of discharge counter amplifies, and therefore, can dispose in the checking circuit of the utility model
Output signal amplifying unit.Specifically, the output end of the input terminal of output signal amplifying unit and the dash current unit connects
It connects.
Illustratively, output signal amplifying unit can use AMP IC amplifier.
The dash current by amplification that output signal amplifying unit is exported injects discharge counter, thus corresponding
Under the action of dash current, whether detection discharge counter can accurately be acted, wherein the movement of discharge counter includes inspection
Survey and record the leakage current of arrester movement and detection and record arrester number of lightning strokes movement.
COUNTER CHECK circuit provided by the utility model, the current characteristics that can produce in discharge counter are consistent
Dash current, as discharge counter provide the dash current that agrees with, so that discharge counter is under the dash current agreed with, energy
It is enough accurately to carry out counting action, or under the dash current agreed with, without counting action, i.e. the utility model can be obtained
To accurate working condition of the discharge counter under the dash current agreed with, the accuracy of discharge counter verification is improved.
In a kind of possible design, the dash current unit is RLC second order dash current unit.The RLC second order
Dash current unit includes tandem type second order dash current unit and parallel connection type second order dash current unit.
Illustratively, Fig. 1 shows the RLC second order dash current unit of tandem type, including inductance L, the electricity being sequentially connected in series
Hold C and resistance R, it should be noted that RLC second order dash current unit may include various forms of inductor combination forms, no
With capacitor combination form and different resistance combination forms, illustrate only an inductance L, a capacitor C and one in Fig. 1
The form of resistance R.The dash current unit can also include multiple inductance, multiple capacitors and multiple resistance, the utility model
Embodiment is limited not to this.
In a kind of possible design, the dash current that dash current unit generates includes 1/5us, 8/20us, 30/60 μ s
Dash current.Wherein, the waveform of the dash current of 30/60 μ s is as shown in Figure 2 a, the waveform of 1/5us dash current such as Fig. 2 b institute
Show, the waveform of 8/20us dash current is as shown in Figure 2 c.
Second aspect, the utility model provide a kind of COUNTER CHECK device, and calibration equipment includes above-mentioned counter school
Electrical verification road.
COUNTER CHECK device provided by the embodiment of the utility model can produce the current characteristics phase in discharge counter
Consistent dash current, as discharge counter provide the dash current agreed with, so that discharge counter is in the impact electricity agreed with
It flows down, can accurately carry out counting action, or under the dash current agreed with, without counting action, i.e., this is practical new
Type can obtain accurate working condition of the discharge counter under the dash current agreed with, improve discharge counter verification
Accuracy.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, any change or replacement within the technical scope disclosed by the utility model should all cover the protection in the utility model
Within the scope of.Therefore, the protection scope of the utility model should be subject to the protection scope in claims.
Claims (5)
1. a kind of COUNTER CHECK circuit, which is characterized in that the circuit includes: dash current unit, power supply unit；
The power supply unit is connect with the dash current unit, and the dash current unit is described for generating dash current
Dash current is for detecting discharge counter, the current characteristics phase one of the dash current of the generation and the discharge counter
It causes.
2. circuit according to claim 1, which is characterized in that the dash current unit is RLC second order dash current list
Member；
The RLC second order dash current unit includes tandem type second order dash current unit and parallel connection type second order dash current list
Member.
3. circuit according to claim 1 or 2, which is characterized in that the circuit further includes output signal amplifying unit, institute
The input terminal for stating output signal amplifying unit is connect with the output end of the dash current unit.
4. circuit according to claim 3, which is characterized in that the dash current of the generation include 1/5us, 8/20us,
The dash current of 30/60 μ s.
5. a kind of COUNTER CHECK device, which is characterized in that described device includes any one in claim 1 to claim 4
Circuit described in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275188.4U CN208432716U (en) | 2018-02-27 | 2018-02-27 | Counter calibration circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820275188.4U CN208432716U (en) | 2018-02-27 | 2018-02-27 | Counter calibration circuit and device |
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| Publication Number | Publication Date |
|---|---|
| CN208432716U true CN208432716U (en) | 2019-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820275188.4U Active CN208432716U (en) | 2018-02-27 | 2018-02-27 | Counter calibration circuit and device |
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| Country | Link |
|---|---|
| CN (1) | CN208432716U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107395A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Counter calibration circuit and device |
-
2018
- 2018-02-27 CN CN201820275188.4U patent/CN208432716U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108107395A (en) * | 2018-02-27 | 2018-06-01 | 南方电网科学研究院有限责任公司 | Counter calibration circuit and device |
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