CN205353337U - Appearance test system is put in office of directly pouring into controllable pulse source into - Google Patents
Appearance test system is put in office of directly pouring into controllable pulse source into Download PDFInfo
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- CN205353337U CN205353337U CN201620081229.7U CN201620081229U CN205353337U CN 205353337 U CN205353337 U CN 205353337U CN 201620081229 U CN201620081229 U CN 201620081229U CN 205353337 U CN205353337 U CN 205353337U
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Abstract
The embodiment of the utility model discloses appearance test system is put in office of directly pouring into controllable pulse source into, put appearance, digital oscilloscope, wire including controllable pulse source, the office of awaiting measuring, controllable pulse source, digital oscilloscope and the office of awaiting measuring put the appearance and pass through the wire and connect in parallel in proper order. Controllable pulse source is used for producing controllable pulse signal, and the office of awaiting measuring puts the appearance and is used for receiving controllable pulse signal to producing its response and responding pulse signal, digital oscilloscope is used for gathering and shows controllable pulse signal. The embodiment of the utility model provides an appearance test system is put in office of directly pouring into controllable pulse source into pours into a controllable pulse source into in the appearance test system is put in the office for generate rise time, decay time, pulse width, polarity, the changeable pulse signal of pulse number, and the degree of accuracy is high, the interference killing feature is strong, thus the implementation system, accurately detection office put each item performance of appearance.
Description
Technical field
This utility model relates to power equipment shelf depreciation diagnostic techniques field, particularly relates to a kind of PD meter test system being directly injected into controllable pulse source.
Background technology
Power equipment shelf depreciation is to cause the main cause of insulation degradation, is also primary symptom and the form of expression of insulation degradation simultaneously.The diagnostic means that PD meter is important as detecting shelf depreciation, it is to ensure that the key equipment of electric power netting safe running, the initial failure of equipment can be reflected more delicately, provide foundation for effectively taking preventive measures, and the safe and stable operation for power high voltage equipment has great importance.
The product of current shelf depreciation instrument both domestic and external is a lot, but its Performance And Reliability usually can not meet shelf depreciation test request.For different power equipments to be measured, the measurement result that same discharge capacity shows in PD meter has very big-difference, and even for same power equipment to be measured, different test loops also brings along different measurement results.Therefore, PD meter carrying out performance test is a requisite job.
In prior art, the method for PD meter detection is a lot, has pulse current method, ultrasound wave, hyperfrequency method etc., but the pulse source of all kinds of method can only produce the impulse waveform that form is fixing, causes the test that PD meter can not carry out system, accurately properties.
Therefore, a kind of test system being directly injected into controllable pulse source PD meter and method of testing thereof urgently occur.
Utility model content
This utility model embodiment provides a kind of PD meter being directly injected into controllable pulse source test system, with solve PD meter of the prior art detection system can not comprehensively and accurately to PD meter properties carry out test problem.
In order to solve above-mentioned technical problem, this utility model embodiment discloses following technical scheme:
A kind of PD meter test system being directly injected into controllable pulse source, including controllable pulse source, PD meter to be measured, digital oscilloscope, wire；
Described controllable pulse source, digital oscilloscope and PD meter to be measured are in parallel successively by described wire；
Described controllable pulse source is used for producing controllable pulse signal；
Described PD meter to be measured is used for receiving described controllable pulse signal, and responses to which generation response impulse signal；
Described digital oscilloscope is used for gathering and show described controllable pulse signal.
Preferably, described PD meter to be measured connects an observing and controlling analytical calculation machine, and described observing and controlling analytical calculation machine is used for showing and analyze described response impulse signal.
Preferably, described digital oscilloscope is provided with zero-bit grounding device.
Preferably, described PD meter to be measured is provided with protective earthing device, for the deleterious charge that described controllable pulse source produces is discharged into the earth.
Preferably, described controllable pulse signal includes the single pulse signal of Parameter adjustable, dipulse signal or the randomly pulsed phase signals such as amplitude, polarity, rising time, trailing edge time, pulsewidth.
Preferably, described wire is shielding line, for the magnetic field that bucking current produces.
From above technical scheme, a kind of PD meter test system being directly injected into controllable pulse source that this utility model embodiment provides, PD meter test system is injected a controllable pulse source, the pulse signal variable for generating rise time, fall time, pulsewidth, polarity, pulse number, and accuracy is high, capacity of resisting disturbance is strong, thus realizing system, detecting the properties of PD meter exactly.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, for those of ordinary skills, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of PD meter test system being directly injected into controllable pulse source that Fig. 1 provides for this utility model embodiment；
Symbol table in Fig. 1 is shown as: 1-controllable pulse source, 2-digital oscilloscope, 3-PD meter to be measured, 4-wire, 5-observing and controlling analytical calculation machine.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that the technical scheme in this utility model, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, all should belong to the scope of this utility model protection.
For solving the pulse source of PD meter test system produces in prior art pulse signal waveform, amplitude is uncontrollable and accuracy is low and cause can not system, the problem of testing PD meter properties accurately, a kind of PD meter test system being directly injected into controllable pulse source that this utility model embodiment provides, injects controllable pulse source 1 in PD meter test system.Controllable pulse source 1 can generate the variable pulse signal of rise time, fall time, pulsewidth, polarity, pulse number, dipulse signal or randomly pulsed phase signal, and accuracy is high, capacity of resisting disturbance is strong, and then realize the test of the numerous parameter of PD meter, for instance the linearity, polarity effect, sensitivity, cut-off frequency, the response of variable repetitive rate, amplitude-frequency characteristic and phase-frequency characteristic.
A kind of PD meter test system being directly injected into controllable pulse source this utility model embodiment provided below in conjunction with accompanying drawing is described in detail.
The structural representation of a kind of PD meter test system being directly injected into controllable pulse source that Fig. 1 provides for this utility model embodiment.Such as Fig. 1, a kind of PD meter test system being directly injected into controllable pulse source that this utility model embodiment provides includes controllable pulse source 1, PD meter to be measured 3, digital oscilloscope 2, wire 4, and each parts of test system are connected by wire 4.In this utility model embodiment, controllable pulse source 1, digital oscilloscope 2 and PD meter to be measured 3 are in parallel successively by wire 4.
Controllable pulse source 1 is used for producing controllable pulse signal, the demand according to test process pulse signals, and controllable pulse source 1 is by producing the controllable pulse signal of different parameters, for the test of PD meter 3 different performance to be measured.In this utility model one preferred embodiment, controllable pulse signal includes the single pulse signal of Parameter adjustable, dipulse signal or the randomly pulsed phase signals such as amplitude, polarity, rising time, trailing edge time, pulsewidth.Wherein, single positive pulse signal is demarcated for the linearity, single undersuing is demarcated for polarity effect, ps level individual pulse signal is used for demarcating the impact of variable repetitive rate for dynamic calibration and dipulse signal.In a kind of preferred embodiment that this utility model provides, controllable pulse source 1 output charge is 1PC, 10PC, 20PC, the positive pulse signal of 50PC, 70PC or 100PC or undersuing, dipulse signal specifically includes: the rise time is 50ns, amplitude is 0.5V, and interval is the pulse of 0.5,0.7,1.0,2.0,5.0,7.0 or 10.0 μ s.It should be understood that the parameters of controllable pulse signal can be carried out corresponding adjustment by those skilled in the art according to actual needs, it all should fall within protection domain of the present utility model.
The controllable pulse signal input that controllable pulse source 1 produces is to PD meter 3 to be measured, and controllable pulse signal is responded by PD meter 3 to be measured, and produces response impulse signal.
Digital oscilloscope 2 is used for gathering and show controllable pulse signal.
In order to conveniently analyze test result, in this utility model one preferred embodiment, PD meter 3 one end to be measured connects an observing and controlling analytical calculation machine 5, and observing and controlling analytical calculation machine 5 is used for showing response impulse signal, and is undertaken contrasting, analyzing by controllable pulse signal and response impulse signal.
In this utility model one preferred embodiment, digital oscilloscope 2 is provided with zero-bit grounding device, for by the zero-bit ground connection in the test Circuits System of PD meter 3 to be measured.
In order to protect each components and parts in the PD meter test system being directly injected into controllable pulse source, in this utility model one preferred embodiment, PD meter 3 to be measured is provided with protective earthing device, for the deleterious charge that controllable pulse source 1 produces is discharged into the earth.
PD meter in order to strengthen controllable pulse source tests the capacity of resisting disturbance of system, and in this utility model one preferred embodiment, wire 4 is shielding line, for the magnetic field that bucking current produces, in order to avoid having influence on the normal operation of other components and parts.
Being more fully understood that the technical program for the ease of those skilled in the art, the use procedure testing system below in conjunction with the PD meter being directly injected into controllable pulse source is further described.
When adopting a kind of PD meter test system being directly injected into controllable pulse source that this utility model embodiment provides that PD meter 3 to be measured is tested, controllable pulse source 1, digital oscilloscope 2 and PD meter to be measured 3 is in parallel successively by described wire 4.
Demand according to test process pulse signals, controllable pulse source 1 is by producing the controllable pulse signal of different parameters, for the test of PD meter 3 different performance to be measured.The controllable pulse signal input extremely PD meter 3 to be measured that controllable pulse source 1 will produce, PD meter 3 to be measured responses to which and produces response impulse signal.
When controllable pulse source 1 is 1PC to PD meter 3 input charge to be measured, 10PC, 20PC, during the positive pulse of 50PC, 70PC, 100PC, digital oscilloscope 2 is utilized to gather the controllable pulse signal of its output, utilize observing and controlling analytical calculation machine 5 to gather response impulse signal, and undertaken contrasting, analyzing by controllable pulse signal and response impulse signal, then the amplitude of controllable pulse signal is the PD meter 3 to be measured linearity to positive pulse with the relation of the electric charge of response impulse signal.
When controllable pulse source 1 is 1PC to PD meter 3 input charge to be measured, 10PC, 20PC, during the negative pulse of 50PC, 70PC, 100PC, digital oscilloscope 2 is utilized to gather its controllable pulse signal, utilize observing and controlling analytical calculation machine 5 to gather response impulse signal, and undertaken contrasting, analyzing by controllable pulse signal and response impulse signal, then the amplitude of controllable pulse signal is the PD meter 3 to be measured linearity to negative pulse with the relation of the electric charge of response impulse signal.
Relatively PD meter 3 positive pulse to be measured and the relation of the linearity of negative pulse, analyze the pulse polarity impact on PD meter 3 to be measured.
When controllable pulse source 1 inputs dipulse signal to PD meter 3 to be measured, the response impulse signal that the controllable pulse signal gathered according to digital oscilloscope 2 and observing and controlling analytical calculation machine 5 gather, analyze the response impact of variable repetition frequency pulse.
When controllable pulse source 1 produces ps level single pulse signal, and ps level pulse signal is injected into PD meter 3 to be measured, gather the response impulse signal of ps level pulse signal and PD meter to be measured 3, according to Spectral Analysis Method, described ps level pulse signal and response impulse signal are done spectrum analysis, obtain frequency response function.According to gained frequency response function, obtain amplitude-frequency characteristic and the phase-frequency characteristic of PD meter 3 to be measured.
Amplitude-frequency characteristic according to PD meter 3 to be measured and phase-frequency characteristic, detect the undistorted transmission performance of PD meter 3 to be measured.The condition of the undistorted transmission of PD meter 3 a kind of to be measured that this utility model embodiment provides is: amplitude spectrum be one with the parallel straight line of frequency coordinate and phase spectrum for a linear straight line, if meeting, PD meter 3 to be measured is undistorted transmission；Otherwise, it is judged that PD meter 3 to be measured transmits for distortion.
The above-mentioned analysis mode to the linearity, polarity effect, sensitivity, cut-off frequency, the response of variable repetitive rate, amplitude-frequency characteristic and phase-frequency characteristic is only this utility model embodiment one exemplary illustration; it can be adjusted by those skilled in the art according to actual needs, and it all should fall within protection domain of the present utility model.
It should be noted that, in this article, the such as relational terms of " first " and " second " or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
The above is only detailed description of the invention of the present utility model, makes to skilled artisans appreciate that or realize this utility model.The multiple amendment of these embodiments be will be apparent to one skilled in the art, and generic principles defined herein when without departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (6)
1. the PD meter test system being directly injected into controllable pulse source, it is characterised in that include controllable pulse source (1), PD meter to be measured (3), digital oscilloscope (2), wire (4)；
Described controllable pulse source (1), digital oscilloscope (2) and PD meter to be measured (3) are in parallel successively by described wire (4)；
Described controllable pulse source (1) is used for producing controllable pulse signal；
Described PD meter to be measured (3) is used for receiving described controllable pulse signal, and responses to which generation response impulse signal；
Described digital oscilloscope (2) is used for gathering and show described controllable pulse signal.
2. the PD meter test system being directly injected into controllable pulse source according to claim 1, it is characterized in that, described PD meter to be measured (3) connects observing and controlling analytical calculation machine (5), and described observing and controlling analytical calculation machine (5) is used for showing and analyze described response impulse signal.
3. the PD meter test system being directly injected into controllable pulse source according to claim 1, it is characterised in that described digital oscilloscope (2) is provided with zero-bit grounding device.
4. the PD meter test system being directly injected into controllable pulse source according to claim 1; it is characterized in that; described PD meter to be measured (3) is provided with protective earthing device, for the deleterious charge that described controllable pulse source (1) produces is discharged into the earth.
5. the PD meter test system being directly injected into controllable pulse source according to claim 1, it is characterized in that, described controllable pulse signal includes the single pulse signal of Parameter adjustable, dipulse signal or the randomly pulsed phase signals such as amplitude, polarity, rising time, trailing edge time, pulsewidth.
6. the PD meter test system being directly injected into controllable pulse source according to claim 1, it is characterised in that described wire (4) is shielding line, for the magnetic field that bucking current produces.
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| CN201620081229.7U CN205353337U (en) | 2016-01-27 | 2016-01-27 | Appearance test system is put in office of directly pouring into controllable pulse source into |
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| CN201620081229.7U CN205353337U (en) | 2016-01-27 | 2016-01-27 | Appearance test system is put in office of directly pouring into controllable pulse source into |
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| CN205353337U true CN205353337U (en) | 2016-06-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548937A (en) * | 2016-01-27 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | Partial discharge test system capable of directly injecting controllable impulse source |
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2016
- 2016-01-27 CN CN201620081229.7U patent/CN205353337U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548937A (en) * | 2016-01-27 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | Partial discharge test system capable of directly injecting controllable impulse source |
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