CN105403848A - Verification device for novel capacitive equipment on-line monitoring system - Google Patents
Verification device for novel capacitive equipment on-line monitoring system Download PDFInfo
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- CN105403848A CN105403848A CN201510734217.XA CN201510734217A CN105403848A CN 105403848 A CN105403848 A CN 105403848A CN 201510734217 A CN201510734217 A CN 201510734217A CN 105403848 A CN105403848 A CN 105403848A
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- monitoring system
- line monitoring
- type equipment
- voltage
- capacitance type
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
Abstract
The invention relates to a verification device for a novel capacitive equipment on-line monitoring system. The verification device comprises a capacitive equipment on-line monitoring system simulation device, a voltage/current output sampling interface, a current output sampling interface, a capacitive equipment on-line monitoring system and a standard measurement instrument; and the capacitive equipment on-line monitoring system simulation device is communicated with the voltage/current output sampling interface and the current output sampling interface through data lines, the capacitive equipment on-line monitoring system and the standard measurement instrument are connected in parallel at an output end communicating the voltage/current output sampling interface and the current output sampling interface. The verification device performs full-scale continuous adjustable accuracy measurement on various characteristic quantities of a current, a medium loss factor, capacitance and the like of the capacitive equipment on-line monitoring system; the verification device can simulate verification of measurement accuracy of the monitoring system on a condition that a harmonic wave interference exists; and the verification device effectively overcomes defects of too less verification points when high-voltage method verification is performed, unsafety due to a high test voltage, and the like.
Description
Technical field
The invention belongs to field of measuring techniques, especially a kind of novel capacitor type equipment on-line monitoring system check device.
Background technology
At present, verification for capacitive apparatus on-Line Monitor Device adopts high pressure verification mode more, namely by parts such as experiment power supply, high-tension transformer, high voltage dielectric loss analogue means, simulate the characteristic parameters such as different capacitance and dielectric dissipation factor, thus verify whether this on-Line Monitor Device normally works, and whether meet accuracy requirement at part test point.Shown in its specific implementation process parent map 2.After the boosting of loop, the capacitive divider be made up of CN, C0 provides voltage sampling signal, provides current sampling signal by the coupling of C1 and different resistance R, by comparing of standard measuring instruments and on-Line Monitor Device measurement result, and the working condition of inspection machine.
Capacitive divider is passed through (by C in above-mentioned test loop
n, C
0composition) voltage sampling signal is provided, load capacity is limited, current most of capacitive apparatus on-Line Monitor Device is when obtaining PT bis-reference voltages, be adopt V/I mapping mode mostly, namely by resistance, voltage transformation become electric current, then measure this current signal by punching CT, therefore, after the tested charged or online equipment of access, the secondary impedance of voltage divider will be changed, cause unfixed phase place (dielectric loss) error.Meanwhile, the high voltage dielectric loss analogue means based on single capacitor also has certain limitation in analog electrical capacity, dielectric loss factor, measurement electric current etc.Based on the systemic-function check test of high voltage dielectric loss analogue means, capacitance-resistance can only be utilized to mate the several characteristic parameter being easy to realize of simulation measure, therefore, this test only can be used as the availability that proving test judges on-Line Monitor Device, the verification of gamut can not be carried out to the trueness error of on-Line Monitor Device, thus the accuracy of evaluating apparatus.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, the novel capacitor type equipment on-line monitoring system check device providing a kind of structure simple, esy to use, safe and reliable, effectively overcoming high-pressure process verification is that checkpoint is very few, the high unsafe deficiency of trial voltage.
The present invention solves its technical matters and takes following technical scheme to realize:
A kind of novel capacitor type equipment on-line monitoring system check device, it is characterized in that: comprise capacitance type equipment on-line monitoring system simulator, voltage/current exports sample connection, electric current exports sample connection, capacitance type equipment on-line monitoring system and standard measuring instruments composition, capacitance type equipment on-line monitoring system simulator is communicated with voltage/current respectively by data line and exports sample connection and electric current output sample connection, the output terminal being communicated with voltage/current output sample connection and electric current output sample connection is parallel with a capacitance type equipment on-line monitoring system and a standard measuring instruments.
And, the electric current of loop stream warp described capacitance type equipment on-line monitoring system simulator has a power frequency component simulation capacitive apparatus actual motion of different current value/voltage and phase value during by digital regulated technology export two-way, the electric current of this two-way power frequency component of standard measuring instruments Measurement accuracy and phase differential, and by calculating equivalent resistive current first harmonics value and capacitance-resistance ratio;
When carrying out accuracy of measurement test to measured capacitance type equipment on-line monitoring system, by corresponding sample of signal interface, the signal that capacitance type equipment on-line monitoring system simulator exports is delivered to the capacitance type equipment on-line monitoring system and standard measuring instruments that are verified, both measure simultaneously, and using the measured value of standard measuring instruments as reading of standard, calculate the error of the measurement electric capacity of on-line monitoring system, dielectric loss factor and current value.
And described capacitance type equipment on-line monitoring system simulator superposes harmonic component in the output signal by setting, the accuracy of measurement of test on-line monitoring system under electrical network disturbed condition.
And, described capacitance type equipment on-line monitoring system simulator adopts digitizing control technique, output current range of adjustment is 1mA ~ 1000mA, output voltage range of adjustment is 0V ~ 100V, simulation medium loss factor range of adjustment is-50% ~+50%, electric capacity range of adjustment is 100pF ~ 50nF, and trial voltage harmonic component range of adjustment is 3,5,7,9 subharmonic of 0 ~ 20% content.
And this device, for a certain characteristic parameter, when other parameter constants, tests verification separately.
And, the concrete method of calibration of this device:
Be δ when two-way exports phase difference output respectively
1voltage U and electric current I time, be applicable to verify the capacitance type equipment on-line monitoring system of the absolute method of measurement, when two-way exports as phase differential δ
2electric current I
1, I
2time, be applicable to the capacitance type equipment on-line monitoring system verifying relative measurement method;
When verifying the capacitive apparatus on-line monitoring system of the absolute method of measurement, standard measuring instruments with will be recorded U respectively by school superintendent examining system
mark, I
mark, δ
1 markand U
by school, I
by school, δ
1 by school, draw the error amount of each parameter;
When verifying the capacitive apparatus on-line monitoring system of relative measurement method, standard measuring instruments with will be recorded I respectively by school superintendent examining system
1 mark, I
2 marks, δ
2 marksand I
1 by school, I
2 by school, δ
2 by school, draw the error amount of each parameter.
Advantage of the present invention and good effect are:
The present invention's each characteristic quantity such as electric current, dielectric dissipation factor, electric capacity to capacitive apparatus on-line monitoring system carries out the continuously adjustable accuracy measurement of gamut, and under harmonic wave disturbed condition being simulated, verify the accuracy of measurement of monitoring system, effectively overcoming high-pressure process verification is that checkpoint is very few, the high uneasy congruence of trial voltage is not enough.
Accompanying drawing explanation
Fig. 1 is that height forces down method verification test loop, school;
Fig. 2 is high pressure verification mode wiring diagram.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the invention will be further described, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of novel capacitor type equipment on-line monitoring system check device, comprise capacitance type equipment on-line monitoring system simulator, voltage/current exports sample connection, electric current exports sample connection, capacitance type equipment on-line monitoring system and standard measuring instruments composition, its working method is as Fig. 1, capacitance type equipment on-line monitoring system simulator is communicated with voltage/current respectively by data line and exports sample connection and electric current output sample connection, the output terminal being communicated with voltage/current output sample connection and electric current output sample connection is parallel with a capacitance type equipment on-line monitoring system and a standard measuring instruments,
The electric current of loop stream warp capacitance type equipment on-line monitoring system simulator has a power frequency component simulation capacitive apparatus actual motion of different current value (or voltage) and phase value during by digital regulated technology export two-way, standard measuring instruments can the electric current of this two-way power frequency component of Measurement accuracy and phase differential, and by the resistive current first harmonics value that calculates equivalence and capacitance-resistance ratio.When carrying out accuracy of measurement test to measured capacitance type equipment on-line monitoring system, by corresponding sample of signal interface, the signal that capacitance type equipment on-line monitoring system simulator exports is delivered to the capacitance type equipment on-line monitoring system and standard measuring instruments that are verified, both measure simultaneously, and using the measured value of standard measuring instruments as reading of standard, calculate the error of the measurement electric capacity of on-line monitoring system, dielectric loss factor and current value.Meanwhile, this simulator superposes harmonic component in the output signal by setting, the accuracy of measurement of test on-line monitoring system under electrical network disturbed condition.
In the present invention, capacitance type equipment on-line monitoring system simulator adopts digitizing control technique, output current range of adjustment is 1mA ~ 1000mA, output voltage range of adjustment is 0V ~ 100V, simulation medium loss factor range of adjustment is-50% ~+50%, electric capacity range of adjustment is 100pF ~ 50nF, trial voltage harmonic component range of adjustment is 3,5,7,9 subharmonic of 0 ~ 20% content, all output parameters continuously adjustabe within the scope of output range, therefore can carry out the verification of accuracy of measurement within the scope of gamut to tested on-line monitoring system.
Concrete method of calibration:
Be δ when two-way exports phase difference output respectively
1voltage U and electric current I time, be applicable to verify the capacitance type equipment on-line monitoring system of the absolute method of measurement, when two-way exports as phase differential δ
2electric current I
1, I
2time, be applicable to the capacitance type equipment on-line monitoring system verifying relative measurement method;
When verifying the capacitive apparatus on-line monitoring system of the absolute method of measurement, standard measuring instruments with will be recorded U respectively by school superintendent examining system
mark, I
mark, δ
1 markand U
by school, I
by school, δ
1 by school, thus the error amount of each parameter can be drawn;
When verifying the capacitive apparatus on-line monitoring system of relative measurement method, standard measuring instruments with will be recorded I respectively by school superintendent examining system
1 mark, I
2 marks, δ
2 marksand I
1 by school, I
2 by school, δ
2 by school, thus the error amount of each parameter can be drawn.
Meanwhile, the calibration equipment of indication of the present invention for a certain characteristic parameter, when other parameter constants, can test verification separately, such as: the tested end shield current value of adjustment flexibly, keeps again trial voltage constant simultaneously; Flexible adjustment verification electric capacity, keeps again dielectric loss value constant simultaneously; Flexible adjustment verification dielectric loss parameter, holding capacitor amount is constant again simultaneously.
Although disclose embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, therefore, scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (6)
1. a novel capacitor type equipment on-line monitoring system check device, it is characterized in that: comprise capacitance type equipment on-line monitoring system simulator, voltage/current exports sample connection, electric current exports sample connection, capacitance type equipment on-line monitoring system and standard measuring instruments composition, capacitance type equipment on-line monitoring system simulator is communicated with voltage/current respectively by data line and exports sample connection and electric current output sample connection, the output terminal being communicated with voltage/current output sample connection and electric current output sample connection is parallel with a capacitance type equipment on-line monitoring system and a standard measuring instruments.
2. novel capacitor type equipment on-line monitoring system check device according to claim 1, it is characterized in that: the electric current of loop stream warp described capacitance type equipment on-line monitoring system simulator has a power frequency component simulation capacitive apparatus actual motion of different current value/voltage and phase value during by digital regulated technology export two-way, the electric current of this two-way power frequency component of standard measuring instruments Measurement accuracy and phase differential, and by calculating equivalent resistive current first harmonics value and capacitance-resistance ratio;
When carrying out accuracy of measurement test to measured capacitance type equipment on-line monitoring system, by corresponding sample of signal interface, the signal that capacitance type equipment on-line monitoring system simulator exports is delivered to the capacitance type equipment on-line monitoring system and standard measuring instruments that are verified, both measure simultaneously, and using the measured value of standard measuring instruments as reading of standard, calculate the error of the measurement electric capacity of on-line monitoring system, dielectric loss factor and current value.
3. novel capacitor type equipment on-line monitoring system check device according to claim 1, it is characterized in that: described capacitance type equipment on-line monitoring system simulator superposes harmonic component in the output signal by setting, the accuracy of measurement of test on-line monitoring system under electrical network disturbed condition.
4. novel capacitor type equipment on-line monitoring system check device according to claim 1, it is characterized in that: described capacitance type equipment on-line monitoring system simulator adopts digitizing control technique, output current range of adjustment is 1mA ~ 1000mA, output voltage range of adjustment is 0V ~ 100V, simulation medium loss factor range of adjustment is-50% ~+50%, electric capacity range of adjustment is 100pF ~ 50nF, and trial voltage harmonic component range of adjustment is 3,5,7,9 subharmonic of 0 ~ 20% content.
5. novel capacitor type equipment on-line monitoring system check device according to claim 1, is characterized in that: this device, for a certain characteristic parameter, when other parameter constants, tests verification separately.
6. novel capacitor type equipment on-line monitoring system check device according to claim 1, is characterized in that: the concrete method of calibration of this device:
Be δ when two-way exports phase difference output respectively
1voltage U and electric current I time, be applicable to verify the capacitance type equipment on-line monitoring system of the absolute method of measurement, when two-way exports as phase differential δ
2electric current I
1, I
2time, be applicable to the capacitance type equipment on-line monitoring system verifying relative measurement method;
When verifying the capacitive apparatus on-line monitoring system of the absolute method of measurement, standard measuring instruments with will be recorded U respectively by school superintendent examining system
mark, I
mark, δ
1 markand U
by school, I
by school, δ
1 by school, draw the error amount of each parameter;
When verifying the capacitive apparatus on-line monitoring system of relative measurement method, standard measuring instruments with will be recorded I respectively by school superintendent examining system
1 mark, I
2 marks, δ
2 marksand I
1 by school, I
2 by school, δ
2 by school, draw the error amount of each parameter.
Priority Applications (1)
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|---|---|---|---|
| CN201510734217.XA CN105403848A (en) | 2015-11-02 | 2015-11-02 | Verification device for novel capacitive equipment on-line monitoring system |
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| CN201510734217.XA CN105403848A (en) | 2015-11-02 | 2015-11-02 | Verification device for novel capacitive equipment on-line monitoring system |
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| CN105403848A true CN105403848A (en) | 2016-03-16 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974344A (en) * | 2016-04-19 | 2016-09-28 | 中国电力科学研究院 | Calibration system and method for relative dielectric loss and electric capacity detector |
| CN106483385A (en) * | 2016-12-07 | 2017-03-08 | 北京四方继保自动化股份有限公司 | A kind of dielectric loss measurement system based on punching transformer and measuring method |
| CN106526521A (en) * | 2016-11-24 | 2017-03-22 | 国网辽宁省电力有限公司电力科学研究院 | Calibration system for online monitoring device for capacitive equipment |
| CN107884737A (en) * | 2017-11-13 | 2018-04-06 | 国网福建省电力有限公司 | The live capacitive apparatus on-line monitoring check system and method for wireless high-precise synchronization |
| CN110441722A (en) * | 2019-08-22 | 2019-11-12 | 华北电力科学研究院有限责任公司 | Dielectric loss tester method of calibration, apparatus and system |
| CN111521965A (en) * | 2020-05-08 | 2020-08-11 | 广东电网有限责任公司电力科学研究院 | Transformer bushing dielectric loss detection device correction system and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271152A (en) * | 2008-05-06 | 2008-09-24 | 山东电力研究院 | Capacitance type equipment insulation on-line monitoring system calibration method and device |
| CN203745631U (en) * | 2013-10-24 | 2014-07-30 | 国家电网公司 | Verifying system for on-line monitoring device of lightning arrester |
| CN104062618A (en) * | 2014-07-09 | 2014-09-24 | 国家电网公司 | Verification method for on-line monitoring device of double-signal-source capacitive equipment |
-
2015
- 2015-11-02 CN CN201510734217.XA patent/CN105403848A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271152A (en) * | 2008-05-06 | 2008-09-24 | 山东电力研究院 | Capacitance type equipment insulation on-line monitoring system calibration method and device |
| CN203745631U (en) * | 2013-10-24 | 2014-07-30 | 国家电网公司 | Verifying system for on-line monitoring device of lightning arrester |
| CN104062618A (en) * | 2014-07-09 | 2014-09-24 | 国家电网公司 | Verification method for on-line monitoring device of double-signal-source capacitive equipment |
Non-Patent Citations (3)
| Title |
|---|
| 杨圆 等: "电容型设备绝缘状态监测装置技术参数及校验方法的研究", 《2012电工测试技术学术交流会论文集》 * |
| 王楠 等: "电容型设备绝缘在线监测与诊断技术综述", 《电网技术》 * |
| 车俊禄 等: "电容型设备介质损耗带电测试可行性研究", 《西北电力技术》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974344A (en) * | 2016-04-19 | 2016-09-28 | 中国电力科学研究院 | Calibration system and method for relative dielectric loss and electric capacity detector |
| CN106526521A (en) * | 2016-11-24 | 2017-03-22 | 国网辽宁省电力有限公司电力科学研究院 | Calibration system for online monitoring device for capacitive equipment |
| CN106483385A (en) * | 2016-12-07 | 2017-03-08 | 北京四方继保自动化股份有限公司 | A kind of dielectric loss measurement system based on punching transformer and measuring method |
| CN106483385B (en) * | 2016-12-07 | 2019-04-26 | 北京四方继保自动化股份有限公司 | A kind of dielectric loss measurement system and measurement method based on punching mutual inductor |
| CN107884737A (en) * | 2017-11-13 | 2018-04-06 | 国网福建省电力有限公司 | The live capacitive apparatus on-line monitoring check system and method for wireless high-precise synchronization |
| CN107884737B (en) * | 2017-11-13 | 2020-02-14 | 国网福建省电力有限公司 | Wireless high-precision synchronous on-site capacitive equipment on-line monitoring and checking system and method |
| CN110441722A (en) * | 2019-08-22 | 2019-11-12 | 华北电力科学研究院有限责任公司 | Dielectric loss tester method of calibration, apparatus and system |
| CN110441722B (en) * | 2019-08-22 | 2022-06-10 | 华北电力科学研究院有限责任公司 | Method, device and system for checking dielectric loss tester |
| CN111521965A (en) * | 2020-05-08 | 2020-08-11 | 广东电网有限责任公司电力科学研究院 | Transformer bushing dielectric loss detection device correction system and method |
| CN111521965B (en) * | 2020-05-08 | 2023-02-17 | 广东电网有限责任公司电力科学研究院 | Transformer bushing dielectric loss detection device correction system and method |
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Application publication date: 20160316 |
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