CN202189141U - Calibrator for partial discharge detection equipment - Google Patents
Calibrator for partial discharge detection equipment Download PDFInfo
- Publication number
- CN202189141U CN202189141U CN2011201573695U CN201120157369U CN202189141U CN 202189141 U CN202189141 U CN 202189141U CN 2011201573695 U CN2011201573695 U CN 2011201573695U CN 201120157369 U CN201120157369 U CN 201120157369U CN 202189141 U CN202189141 U CN 202189141U
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- partial discharge
- electric capacity
- discharge detection
- signal generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Relating To Insulation (AREA)
Abstract
The utility model relates to a calibrator for partial discharge detection equipment, which is used for calibrating multiple properties of the partial discharge detection equipment. The adopted technical scheme is as follows: the calibrator consists of a single-chip microcomputer, a calibration pulse signal generator, a testing network, a sine wave signal generator and a surge voltage generator, wherein a control signal input terminal of the calibration pulse signal generator is connected with the single-chip microcomputer, a pulse signal output terminal is connected with the partial discharge detection equipment through the testing network, the control signal input terminals of the sine wave signal generator and the surge voltage generator are connected with the single-chip microcomputer, and control signal output terminals are connected with the partial discharge detection equipment. In the calibrator, the calibration pulse signal generator, the testing network, the sine wave signal generator and the surge voltage generator are organically combined together and unitedly controlled by the single-chip microcomputer, so as to output multiple types of calibration signals, and calibrate multiple properties of the partial discharge detection equipment. The calibrator greatly simplifies the calibration operating process, and improves the accuracy and working efficiency of the calibration.
Description
Technical field
The utility model relates to the device that a kind of performances such as measuring accuracy, the linearity, reliability that are used for Partial Discharge Detection equipment are carried out verification, belongs to the detection technique field.
Background technology
Partial Discharge Detection equipment uses extensively, in the production and use of Partial Discharge Detection equipment, need proofread and correct performances such as its measuring accuracy, the linearity, reliabilities.But owing to still there is not special Partial Discharge Detection UC device at present; The method that can only adopt multiple conventional instruments such as signal generator, oscillograph to match is carried out verification to checkout equipment; Operation is very loaded down with trivial details, and the verification difficulty is big, has influenced the accuracy of verification to a certain extent.Therefore designing and develop a kind of multi-functional Partial Discharge Detection UC device is the present problems that face of relevant technologies personnel.
The utility model content
The purpose of the utility model be to overcome prior art deficiency, a kind of multiple functional Partial Discharge Detection UC appearance is provided.
The said problem of the utility model realizes with following technical proposals:
A kind of Partial Discharge Detection UC appearance; Form by single-chip microcomputer, calibration pulse signal generator, test network, sine wave signal generator and impulse voltage generator; The signal input end of said calibration pulse signal generator connects single-chip microcomputer, and pulse signal output end is put checkout equipment through the test network office of connecing; The signal input end of said sine wave signal generator and impulse voltage generator connects single-chip microcomputer, and checkout equipment is put in output termination office.
Above-mentioned Partial Discharge Detection UC appearance; Said calibration pulse signal generator is made up of first operational amplifier, first mercury relay, second mercury relay, first electric capacity and two resistance; The in-phase input end of said first operational amplifier connects the DAC1 port of single-chip microcomputer; Output terminal connects test network through the normally opened contact of first mercury relay and second mercury relay successively; Inverting input connects output terminal and warp second resistance eutral grounding through first resistance; Said first electric capacity, one end ground connection, being connected in series a little of the normally opened contact of a termination first mercury relay and second mercury relay, the control coil of first mercury relay and second mercury relay connects the P0.1 and the P0.0 port of single-chip microcomputer respectively.
Above-mentioned Partial Discharge Detection UC appearance; Said sine wave signal generator is made up of DDS chip, wave filter, second operational amplifier, digital regulation resistance and two resistance; The P0.4 port of the D7 termination single-chip microcomputer of said DDS chip, the sine wave signal of Iout end output are connected to the in-phase input end of second operational amplifier successively through wave filter and the 3rd resistance, checkout equipment is put in the output termination office of said second operational amplifier; Inverting input is through the 4th resistance eutral grounding; The output terminal of the WB termination wave filter of said digital regulation resistance, the output terminal of HB termination second operational amplifier, the P3.1 port of DIN termination single-chip microcomputer.
Above-mentioned Partial Discharge Detection UC appearance; Said impulse voltage generator is made up of relay, inductance, two thyristors, two electric capacity and two potentiometers; Second electric capacity, one end ground connection, an end is connected with positive source through the normally opened contact of relay, and the control coil of relay connects the P3.6 port of single-chip microcomputer; The anode of first thyristor connects the non-earth terminal of second electric capacity; Negative electrode is through the first potentiometer ground connection and successively through second potentiometer, inductance and the 3rd capacity earth, and the control utmost point connects the P3.5 port of single-chip microcomputer, and checkout equipment is put in the surge voltage signal office of connecing of the 3rd electric capacity two ends output; Second thyristor is attempted by on the 3rd electric capacity, and its control utmost point connects the P3.3 port of single-chip microcomputer.
Above-mentioned Partial Discharge Detection UC appearance; Said test network is put by eight electric capacity, two switch drawn games and is detected input transformer and form; The main contact of first switch connects the output terminal of calibration pulse signal generator; Four branch contacts are respectively through four capacity earths, and the main contact of second switch is put the detection input transformer office of connecing through office and put checkout equipment, and four branch contacts connect the output terminal of pulse producer respectively through four electric capacity.
Above-mentioned Partial Discharge Detection UC appearance; Also comprise the 3rd mercury relay, the 4th mercury relay and the 4th electric capacity in the formation of said calibration pulse signal generator; After being connected in series, the normally opened contact of the 3rd mercury relay and the 4th mercury relay is connected between the output terminal and test network of first operational amplifier; Their control coil connects the P0.2 and the P0.3 port of single-chip microcomputer respectively; Said the 4th electric capacity one end ground connection, being connected in series a little of the normally opened contact of a termination the 3rd mercury relay and the 4th mercury relay.
Above-mentioned Partial Discharge Detection UC appearance; Also comprise the output pulse signal Acquisition Circuit in the formation; Said output pulse signal Acquisition Circuit is made up of the 5th resistance and two diodes; Said two diode inverse parallels connect back one end ground connection, and the AIN0 port of a termination single-chip microcomputer and warp the 5th resistance connect the main contact of second switch.
The utility model will be calibrated pulse signal generator, test network, sine wave signal generator and impulse voltage generator and organically combine; By the unified control of single-chip microcomputer; Can export multiple calibrating signal; Can carry out verification to the multiple performance of Partial Discharge Detection equipment, simplify the verification operation process greatly, improve the accuracy and the work efficiency of verification.
The calibration pulse signal generator of the utility model with mercury relay as on-off element; Because the breaker acting speed of mercury relay is fast; The closing of contact is stable, and withstand voltage height, thereby the high-voltage pulse signal that the exportable amplitude of this calibration pulse signal generator is high, rising edge is level and smooth.
Said shelf depreciation test network, built-in coupling capacitance network, test product capacitance network, the electric capacity combination can be switched arbitrarily.The detection input block is put in built-in office, also can select external office to put the detection input block.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the electric theory diagram of the utility model;
Fig. 2 is an electrical schematic diagram.
Each label is among the figure: U1, single-chip microcomputer; U2, DDS chip; U3, digital regulation resistance; LB, wave filter; VT1, VT2, thyristor; W1, W2, potentiometer; J1～J4, mercury relay; J5, relay; F1, F2, operational amplifier; S1, S2, switch; The detection input transformer is put in Z, office; D1, D2, diode; C1～C12, electric capacity; R1, R5, resistance; P1, P2, P3, BNC head.
Embodiment
The utility model adopts integrated design, and instrument just can carry out comprehensive verification to performances such as the measuring accuracy of Partial Discharge Detection equipment, the linearity, reliabilities.
Referring to Fig. 2; The complete machine principle of work: single-chip microcomputer U1 adopts the C8051F060 that has A/D and D/A function; Have control simultaneously and gather two kinds of functions, be used for being provided with the parameters such as frequency, amplitude, impulse time delay of calibration pulse signal generator and sine wave signal generator; The voltage of the DAC1 of single-chip microcomputer U1 (should be DAC1) port output can reach 100V after high pressure amplifier F1 amplifies, for the calibration pulse signal generator provides charge power supply.Sine wave signal generator generates sine wave signal by DDS chip U2, the output after filtering, amplification of this signal, and the feedback resistance of amplifier F2 adopts digital regulation resistance U5, can resistance be set by single-chip microcomputer U1, thereby reach the purpose of control output voltage amplitude.The shock pulse generator mainly is made up of capacitor and thyristor, and the surge voltage signal of exportable 100V, single-chip microcomputer U1 can be provided with parameters such as the peak value, wavefront time, time to chopping of surge voltage signal, and the surge voltage signal directly exports seized equipment to.The built-in coupling capacitance network of shelf depreciation test network (C5～C8), test product capacitance network (C9～C12), Partial Discharge Detection input transformer Z, the calibration pulse signal exports seized equipment through the shelf depreciation test network to through BNC P3.
Calibration pulse signal generator principle of work
J1, J2, J3, J4 are mercury relay, and wherein J1 and J2 are one the tunnel; J3 and J4 are one the tunnel.J1, J3 closure, when J2, J4 disconnection, direct supply DC is capacitor C 1, C4 charging; J1, J3 break off, when J2, J3 closure, and capacitor C 1, C4 discharge, output pulse signal.Single-chip microcomputer U1 is through the voltage of the control first operational amplifier F1 in-phase input end, may command pulse polarity and amplitude.Play a game and put checkout equipment and carry out timing and can select road work in the two-way output, the pulse signal of output positive-negative polarity.Exportable dipulse signal when two-way is worked simultaneously, two pulse signals stack back output.Through the disconnection of adjusting mercury relay and the frequency and the time delay of closure time may command pulse signal.The positive pulse of the exportable frequency 50Hz of calibration pulse signal generator～200Hz, amplitude 1～100V and negative pulse signal, rising edge is less than 25nS.The dipulse time delay is adjustable continuously, frequency adjustable.
Impact signal generator principle of work
The DC pulse that the single-chip microcomputer U1 pilot relay J5 generation cycle is 20ms, voltage is adjustable, this voltage be to capacitor C 2 charging, produces a trigger pulse to the control utmost point of thyristor VT1 by single-chip microcomputer U1 again through a fixed response time then and make thyristor VT1 conducting.The last voltage of C2 acts on the harmonic network of W1, W2, L, C3 composition through VT1 like this, regulates W1, W2 according to the concrete condition of test product, obtains corresponding waveform.When the needs generation cuts ripple, produce the signal of controlling thyristor VT2, make output head grounding, section wave-wave shape that obtains wanting by single-chip microcomputer.
Electric capacity in the shelf depreciation test network can switch arbitrarily through switch S1, S2.Office puts and detects input transformer Z and also can be put by external office and detect input block and substitute.
Claims (7)
1. Partial Discharge Detection UC appearance; It is characterized in that; It is made up of single-chip microcomputer (U1), calibration pulse signal generator, test network, sine wave signal generator and impulse voltage generator; The signal input end of said calibration pulse signal generator connects single-chip microcomputer (U1), and pulse signal output end is put checkout equipment through the test network office of connecing; The signal input end of said sine wave signal generator and impulse voltage generator connects single-chip microcomputer (U1), and checkout equipment is put in output termination office.
2. according to the said Partial Discharge Detection UC of claim 1 appearance; It is characterized in that; Said calibration pulse signal generator is made up of first operational amplifier (F1), first mercury relay (J1), second mercury relay (J2), first electric capacity (C1) and two resistance; The in-phase input end of said first operational amplifier (F1) connects the DAC1 port of single-chip microcomputer (U1); Output terminal connects test network through the normally opened contact of first mercury relay (J1) and second mercury relay (J2) successively; Inverting input connects output terminal and warp second resistance (R2) ground connection through first resistance (R1); Said first electric capacity (C1) end ground connection, being connected in series a little of the normally opened contact of a termination first mercury relay (J1) and second mercury relay (J2), the control coil of first mercury relay (J1) and second mercury relay (J2) connects the P0.1 and the P0.0 port of single-chip microcomputer (U1) respectively.
3. according to claim 1 or 2 said Partial Discharge Detection UC appearance; It is characterized in that; Said sine wave signal generator is made up of DDS chip (U2), wave filter (LB), second operational amplifier (F2), digital regulation resistance (U3) and two resistance; The P0.4 port of the D7 termination single-chip microcomputer (U1) of said DDS chip (U2), the sine wave signal of Iout end output are connected to the in-phase input end of second operational amplifier (F2) successively through wave filter (LB) and the 3rd resistance (R3), checkout equipment is put in the output termination office of said second operational amplifier (F2); Inverting input is through the 4th resistance (R4) ground connection; The output terminal of the WB termination wave filter (LB) of said digital regulation resistance (U3), the output terminal of HB termination second operational amplifier (F2), the P3.1 port of DIN termination single-chip microcomputer (U1).
4. according to the said Partial Discharge Detection UC of claim 3 appearance; It is characterized in that; Said impulse voltage generator is made up of relay (J5), inductance (L), two thyristors, two electric capacity and two potentiometers; Second electric capacity (C2) end ground connection, an end is connected with positive source through the normally opened contact of relay (J5), and the control coil of relay (J5) connects the P3.6 port of single-chip microcomputer (U1); The anode of first thyristor (VT1) connects the non-earth terminal of second electric capacity (C2); Negative electrode is through first potentiometer (W1) ground connection and successively through second potentiometer (W2), inductance (L) and the 3rd electric capacity (C3) ground connection, and the control utmost point connects the P3.5 port of single-chip microcomputer (U1), and checkout equipment is put in the surge voltage signal office of connecing of the 3rd electric capacity (C3) two ends output; Second thyristor (VT2) is attempted by on the 3rd electric capacity (C3), and its control utmost point connects the P3.3 port of single-chip microcomputer (U1).
5. according to the said Partial Discharge Detection UC of claim 4 appearance; It is characterized in that; Said test network is put by eight electric capacity, two switch drawn games and is detected input transformer (Z) and form; The main contact of first switch (S1) connects the output terminal of calibration pulse signal generator; Four branch contacts are respectively through four capacity earths, and the main contact of second switch (S2) is put detection input transformer (Z) office of connecing through office and put checkout equipment, and four branch contacts connect the output terminal of pulse producer respectively through four electric capacity.
6. according to the said Partial Discharge Detection UC of claim 5 appearance; It is characterized in that; Also comprise the 3rd mercury relay (J3), the 4th mercury relay (J4) and the 4th electric capacity (C4) in the formation of said calibration pulse signal generator; After being connected in series, the normally opened contact of the 3rd mercury relay (J3) and the 4th mercury relay (J4) is connected between the output terminal and test network of first operational amplifier (F1); Their control coil connects the P0.2 and the P0.3 port of single-chip microcomputer (U1) respectively, said the 4th electric capacity (C4) end ground connection, being connected in series a little of the normally opened contact of a termination the 3rd mercury relay (J3) and the 4th mercury relay (J4).
7. according to the said Partial Discharge Detection UC of claim 6 appearance; It is characterized in that; Also comprise the output pulse signal Acquisition Circuit in the formation; Said output pulse signal Acquisition Circuit is made up of the 5th resistance (R5) and two diodes, and said two diode inverse parallels connect back one end ground connection, and the AIN0 port of a termination single-chip microcomputer (U1) and warp the 5th resistance (R5) connect the main contact of second switch (S2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201573695U CN202189141U (en) | 2010-12-31 | 2011-05-17 | Calibrator for partial discharge detection equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020694539 | 2010-12-31 | ||
| CN201020694539.9 | 2010-12-31 | ||
| CN2011201573695U CN202189141U (en) | 2010-12-31 | 2011-05-17 | Calibrator for partial discharge detection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202189141U true CN202189141U (en) | 2012-04-11 |
Family
ID=45920581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201573695U Expired - Fee Related CN202189141U (en) | 2010-12-31 | 2011-05-17 | Calibrator for partial discharge detection equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202189141U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645619A (en) * | 2012-04-25 | 2012-08-22 | 云南电力试验研究院（集团）有限公司电力研究院 | Evaluating method of electric equipment partial discharge detection system and electric equipment partial discharge detection device |
| CN102680828A (en) * | 2012-05-21 | 2012-09-19 | 云南电力试验研究院（集团）有限公司电力研究院 | Intelligent integrated gas insulation combined electric appliance networking evaluation platform |
| CN103176160A (en) * | 2013-03-11 | 2013-06-26 | 广东电网公司电力科学研究院 | Local discharge simulation calibrating device |
| CN103197272A (en) * | 2013-03-15 | 2013-07-10 | 中国电力科学研究院 | System and method of measuring performance of partial discharge transient state ground voltage detector |
| CN103323807A (en) * | 2013-06-03 | 2013-09-25 | 杭州西湖电子研究所 | Assessment check and magnitude calibration method for ultrahigh-frequency partial-discharging tester |
| CN103439680A (en) * | 2013-08-30 | 2013-12-11 | 国家电网公司 | Calibration method for ultrahigh frequency partial discharge state detecting instrument |
| CZ304480B6 (en) * | 2013-05-29 | 2014-05-21 | České Vysoké Učení Technické V Praze, Fakulta Elektrotechnická | Programmable charge calibrator |
| CN103941209A (en) * | 2014-04-13 | 2014-07-23 | 北京工业大学 | Checking method based on vibration positioning GIS partial discharge equipment |
| CN104166115A (en) * | 2014-08-22 | 2014-11-26 | 广州供电局有限公司 | Signal detection device of capacitive equipment electrified tester |
| CN105510861A (en) * | 2016-01-28 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Multi-functional digital partial discharge detector calibrator |
| CN106054092A (en) * | 2016-05-23 | 2016-10-26 | 广东电网有限责任公司佛山供电局 | GIS partial discharge sensor sensitivity tester |
| CN114200257A (en) * | 2021-11-19 | 2022-03-18 | 山东电工配网科技发展有限公司 | Online monitor is put in ring net case office |
-
2011
- 2011-05-17 CN CN2011201573695U patent/CN202189141U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645619B (en) * | 2012-04-25 | 2014-07-23 | 云南电力试验研究院（集团）有限公司电力研究院 | Evaluating method of electric equipment partial discharge detection system and electric equipment partial discharge detection device |
| CN102645619A (en) * | 2012-04-25 | 2012-08-22 | 云南电力试验研究院（集团）有限公司电力研究院 | Evaluating method of electric equipment partial discharge detection system and electric equipment partial discharge detection device |
| CN102680828A (en) * | 2012-05-21 | 2012-09-19 | 云南电力试验研究院（集团）有限公司电力研究院 | Intelligent integrated gas insulation combined electric appliance networking evaluation platform |
| CN103176160A (en) * | 2013-03-11 | 2013-06-26 | 广东电网公司电力科学研究院 | Local discharge simulation calibrating device |
| CN103197272A (en) * | 2013-03-15 | 2013-07-10 | 中国电力科学研究院 | System and method of measuring performance of partial discharge transient state ground voltage detector |
| CN103197272B (en) * | 2013-03-15 | 2016-01-20 | 中国电力科学研究院 | A kind of system and method testing partial discharge transient earth voltage detector performance |
| CZ304480B6 (en) * | 2013-05-29 | 2014-05-21 | České Vysoké Učení Technické V Praze, Fakulta Elektrotechnická | Programmable charge calibrator |
| CN103323807A (en) * | 2013-06-03 | 2013-09-25 | 杭州西湖电子研究所 | Assessment check and magnitude calibration method for ultrahigh-frequency partial-discharging tester |
| CN103323807B (en) * | 2013-06-03 | 2015-09-09 | 杭州西湖电子研究所 | A kind of method that high-frequency local discharging tester examination School Affairs value is demarcated |
| CN103439680A (en) * | 2013-08-30 | 2013-12-11 | 国家电网公司 | Calibration method for ultrahigh frequency partial discharge state detecting instrument |
| CN103941209A (en) * | 2014-04-13 | 2014-07-23 | 北京工业大学 | Checking method based on vibration positioning GIS partial discharge equipment |
| CN103941209B (en) * | 2014-04-13 | 2016-08-17 | 北京工业大学 | A kind of check method based on vibration location GIS partial discharge equipment |
| CN104166115A (en) * | 2014-08-22 | 2014-11-26 | 广州供电局有限公司 | Signal detection device of capacitive equipment electrified tester |
| CN104166115B (en) * | 2014-08-22 | 2017-03-08 | 广州供电局有限公司 | The signal verification device of capacitive apparatus testing instrument for electrified |
| CN105510861A (en) * | 2016-01-28 | 2016-04-20 | 云南电网有限责任公司电力科学研究院 | Multi-functional digital partial discharge detector calibrator |
| CN105510861B (en) * | 2016-01-28 | 2018-05-25 | 云南电网有限责任公司电力科学研究院 | A kind of multifunction digital PD meter calibrator |
| CN106054092A (en) * | 2016-05-23 | 2016-10-26 | 广东电网有限责任公司佛山供电局 | GIS partial discharge sensor sensitivity tester |
| CN114200257A (en) * | 2021-11-19 | 2022-03-18 | 山东电工配网科技发展有限公司 | Online monitor is put in ring net case office |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202189141U (en) | Calibrator for partial discharge detection equipment | |
| CN202903954U (en) | Power-frequency arbitrary phase angle superposed lightning impulse testing device for insulator string | |
| CN103207363B (en) | A kind of instrument measuring solar cell parameter | |
| CN207675825U (en) | A kind of zero cross detection circuit | |
| CN204462257U (en) | Capacity of super capacitor and DC internal resistance pick-up unit | |
| CN103606933A (en) | Reactive capacitor compensation cabinet | |
| CN201966604U (en) | Novel lightning and surge protector for power | |
| CN201886093U (en) | Low-voltage analog device for synthesis test loop | |
| CN203502448U (en) | Simple signal wave generator | |
| CN201608514U (en) | Overcurrent protection circuit used for insulating gate bipolar transistor | |
| CN206618797U (en) | A kind of zero-crossing detection circuit of power line carrier | |
| CN204575732U (en) | A kind of electrokinetic cell voltage sampling circuit | |
| CN203553955U (en) | Reactive capacitance compensation cabinet | |
| CN202975079U (en) | Load capacitor used for reactor switching impulse test | |
| CN202856370U (en) | Three-unit cylinder type intelligent capacitor | |
| CN109490591A (en) | High stability lightning surge simulator | |
| CN206876753U (en) | A kind of automobile charging box | |
| CN209435200U (en) | Bipolar pulse generating device | |
| CN202103592U (en) | Rectification voltage regulator of motorcycle | |
| CN204967269U (en) | Control of power quality device is synthesized to hybrid | |
| CN204556681U (en) | A kind of thunder and lightning multiple pulse waveform generating means | |
| CN204578489U (en) | A kind of arc voltage measures voltage divider amplitude limiter | |
| CN201830138U (en) | Current source of relay protection measurement instrument | |
| CN204835677U (en) | Battery charging circuit that connects in parallel | |
| CN109905101A (en) | Bipolar pulse generating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20170517 |