CN206311749U - DC current transformer transient response characteristic test system - Google Patents
DC current transformer transient response characteristic test system Download PDFInfo
- Publication number
- CN206311749U CN206311749U CN201720010917.9U CN201720010917U CN206311749U CN 206311749 U CN206311749 U CN 206311749U CN 201720010917 U CN201720010917 U CN 201720010917U CN 206311749 U CN206311749 U CN 206311749U
- Authority
- CN
- China
- Prior art keywords
- current transformer
- transient
- signal
- response characteristic
- current
- 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.)
- Active
Links
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The embodiment of the present application discloses a kind of DC current transformer transient response characteristic test system, including：DC current transformer transient state source standard set-up and DC current transformer transient response characteristic tester, DC current transformer transient response characteristic tester are connected with DC current transformer transient state source standard set-up, and measured DC transformer respectively；DC current transformer step response characteristic can be tested by obtaining the step signal standard value that DC current transformer transient state source standard set-up is produced, and the step signal actual value that measured DC transformer is produced；According to the transient signal standard value of DC current transformer transient state source standard set-up, and measured DC transformer transient signal actual value, test DC current transformer feelings transient state under different faults mode spreads all over characteristic；And according to the transient response characteristic of test result evaluation measured DC transformer, lift the integrality of transient response characteristic test.
Description
Technical field
The application is related to DC current transformer transient response characteristic test technical field, more particularly to a kind of DC current
Transformer transient response characteristic test system.
Background technology
DC current transformer is widely used in direct current instrument transformer station at present, is measurement DC transmission system electric current
Visual plant, can be that the control of DC transmission system and protection provide accurately and reliably DC current signal.
DC current transformer installed before live transient response attribute testing and preventive trial, cycle monitoring pair
Ensure for DC transmission system safe operation, be important work.However, DC electronic current transformer shows at present
Field typically seldom carries out relay protection, lacks correlation test method and foundation.The transient response of existing DC current transformer
In characteristic test, conclusion just slightly is typically directly made according to live experimental waveform.
The transient response characteristic test system of existing DC current transformer, all has much room for improvement on test completeness,
Therefore, it is necessary to a kind of DC current transformer transient response characteristic test system is provided, it is temporary to lift DC current transformer
The integrality of state response characteristic test.
Utility model content
This application provides a kind of DC current transformer transient response characteristic test system, to solve existing direct current
The transient response characteristic test system of current transformer, the problem having much room for improvement in the integrality of test.
The application provides a kind of DC current transformer transient response characteristic test system, and the system includes：Direct current
Current transformer transient state source standard set-up and DC current transformer transient response characteristic tester, the DC current transformer are temporary
State response characteristic tester respectively with the DC current transformer transient state source standard set-up, and measured DC transformer
Connection；
The DC current transformer transient state source standard set-up includes：Master controller, step current signal generator, first
Wave filter, the first signal power amplifier, step voltage signal generator, the second wave filter, step voltage generator, direct current are defeated
Electric system transient emulation signal generator, the 3rd wave filter, secondary signal power amplifier, transient state source follower and standard are temporary
State current transformer；The output end of master controller input, the rank respectively with the step current signal generator
The input connection of the input and Hvdc Systems emulation signal generator of jump voltage signal generator；Institute
The output end and first wave filter and first signal power amplifier for stating step current signal generator connect successively
Connect；The output end of the step voltage signal generator connects successively with second wave filter and the step voltage generator
Connect；The Hvdc Systems emulate the output end and the 3rd wave filter and the secondary signal of signal generator
Power amplifier is sequentially connected；First signal power amplifier, the step voltage generator and the secondary signal
Power amplifier is connected with transient state source follower respectively；Transient state source follower and the standard transient current transformer
Connection；The standard transient current transformer is connected and the DC current transformer with the measured DC transformer
Transient response characteristic tester is connected；
The DC current transformer transient response characteristic tester is provided with analog signalses interface and digital quantity signal
Interface；
The output end of the standard transient current transformer is connected with the analog signalses interface, the tested direct current
Current transformer is connected with the analog signalses interface and the digital quantity signal interface.
The system also includes combining unit, output end and the combining unit of the measured DC transformer
Input is connected, and the output end of the combining unit is connected with the digital quantity signal interface.
The DC current transformer transient response characteristic tester is additionally provided with sync cap, the combining unit it is defeated
Go out end to be connected with the sync cap.
The system also includes printer, the printer and the DC current transformer transient response characteristic tester
It is connected.
From above technical scheme, the utility model embodiment provides a kind of DC current transformer transient response characteristic
Test system, including：DC current transformer transient state source standard set-up and DC current transformer transient response characteristic tester,
The DC current transformer transient response characteristic tester respectively with the DC current transformer transient state source standard set-up, with
And the connection of measured DC transformer；Step signal mark can be obtained by DC current transformer transient response characteristic tester
Quasi- value and step signal actual value, step signal standard value are produced by DC current transformer transient state source standard set-up, step letter
Number actual value is obtained according to the secondary singal of measured DC transformer；Surveyed by DC current transformer transient response characteristic
Examination instrument, according to step signal standard value and step signal actual value, calculates measured DC transformer and DC current mutual inductance
The step signal error of device transient state source standard set-up；Transient state is obtained by DC current transformer transient response characteristic tester to believe
Number standard value and transient signal actual value, transient signal standard value are that DC current transformer transient state source standard set-up emulates direct current
Transient signal standard value of the transmission system under different faults, transient signal actual value according to measured DC transformer two
Secondary signal is obtained；By DC current transformer transient response characteristic tester according to transient signal standard value and transient signal reality
Actual value, calculates the transient signal error of measured DC transformer and DC current transformer transient state source standard set-up；Pass through
DC current transformer transient response characteristic tester evaluates tested direct current according to step signal error and transient signal error
The transient response characteristic of current transformer；The utility model embodiment is produced by DC current transformer transient state source standard set-up
Step signal standard value, and the step signal actual value that measured DC transformer is produced, realize DC current transformer
Step response characteristic test；It is according to the transient signal standard value of DC current transformer transient state source standard set-up and tested
The transient signal actual value of DC current transformer, realizes that DC current transformer feelings transient state under different faults mode spreads all over spy
The test of property；And according to the transient response characteristic of test result overall merit measured DC transformer twice, it is right to be lifted
The integrality of the transient response characteristic test of measured DC transformer.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the application, letter will be made to the accompanying drawing to be used needed for embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without having to pay creative labor,
Other accompanying drawings can also be obtained according to these accompanying drawings.
The schematic diagram of the DC current transformer transient response characteristic test system that Fig. 1 is provided for the embodiment of the present application；
Transient state source standard in the DC current transformer transient response characteristic test system that Fig. 2 is provided for the embodiment of the present application
The structured flowchart of device.
Illustrate：1- DC current transformer transient response characteristic testers；Mark in 2- DC current transformer transient state source
Standard apparatus；3- measured DC transformers；21- master controllers；22- step current signal generators；23- step voltage signals
Generator；24- Hvdc Systems emulate signal generator；The wave filters of 25- first；The wave filters of 26- second；27- the 3rd
Wave filter；The signal power amplifiers of 28- first；29- step voltage generators；30- secondary signal power amplifiers；31- transient state
Source follower；32- standard transient current transformers；33- combining units；34- analog signalses interfaces；35- digital quantity signals connect
Mouthful；36- sync caps.
Specific embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in implementation method do not represent all implementation methods consistent with the disclosure.Conversely, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects described in detail in claims, the disclosure.
Fig. 1 to Fig. 2 is referred to, the utility model embodiment provides a kind of DC current transformer transient response characteristic test
System, the system includes：DC current transformer transient state source standard set-up 2 and DC current transformer transient response characteristic are surveyed
Examination instrument 1, the DC current transformer transient response characteristic tester 1 respectively with the DC current transformer transient state source standard
Device 2, and measured DC transformer 3 is connected.
Wherein, the DC current transformer transient state source standard set-up 2 includes：Master controller 21, step current signal hair
Raw device 22, the first wave filter 25, the first signal power amplifier 28, step voltage signal generator 23, the second wave filter 26, rank
Jump voltage generator 29, Hvdc Systems emulation signal generator 24, the 3rd wave filter 27, secondary signal power amplification
Device 30, transient state source follower 31 and standard transient current transformer 32.
The output end of the master controller 21 input, the step respectively with the step current signal generator 22
The input connection of the input of voltage signal generator 23 and Hvdc Systems emulation signal generator 24；
The output end of the step current signal generator 22 and first wave filter 25 and first signal power amplifier
28 are sequentially connected.
The output end of the step voltage signal generator 23 is sent out with second wave filter 26 and the step voltage
Raw device 29 is sequentially connected.
The output end of the Hvdc Systems emulation signal generator 24 and the 3rd wave filter 27 and institute
Secondary signal power amplifier 30 is stated to be sequentially connected.
First signal power amplifier 28, the step voltage generator 29 and the secondary signal power amplification
Device 30 is connected with transient state source follower 31 respectively.
Transient state source follower 31 is connected with the standard transient current transformer 32.
The standard transient current transformer 32 is connected and the DC current with the measured DC transformer 3
Transformer transient response characteristic tester 1 is connected.
Wherein, the DC current transformer transient state source standard set-up, for producing step signal standard value；
The measured DC transformer, for producing step signal actual value；
The DC current transformer transient response characteristic tester, for obtaining step signal standard value and step signal
Actual value, the step signal standard value is produced by DC current transformer transient state source standard set-up, the step signal reality
Value is obtained according to the secondary singal of measured DC transformer；According to the step signal standard value and the step signal reality
Actual value, calculates the step signal error of measured DC transformer and DC current transformer transient state source standard set-up；Obtain
Transient signal standard value and transient signal actual value, the transient signal standard value are filled for DC current transformer transient state source standard
Transient signal standard value of the simulated direct-current power transmission system under different faults is put, the transient signal actual value is according to tested direct current
The secondary singal of current transformer is obtained；According to the transient signal standard value and the transient signal actual value, calculate tested
The transient signal error of DC current transformer and DC current transformer transient state source standard set-up；Missed according to the step signal
Difference and the transient signal error, evaluate the transient response characteristic of measured DC transformer.
DC current transformer transient response characteristic tester 1 needs to receive the DC current transformer transient state source simultaneously
Standard set-up 2 produce standard signal, and the measured DC transformer 3 secondary singal.
The standard signal that DC current transformer transient state source standard set-up 2 is produced is the transient state of measured DC transformer 3
The benchmark of response check experiment.
The secondary singal of measured DC transformer 3 can be defeated analog output formula, IEC61850-9-1 digital quantities
Go out the forms such as formula, IEC61850-9-2 digital outputs formula, FT3 digital output formulas.
The system also includes combining unit 33, and the DC current transformer transient response characteristic tester 1 is provided with
Analog signalses interface 34, digital quantity signal interface 35 and sync cap 36；
The output end of the standard transient current transformer 32 is connected with the analog signalses interface 34, described tested straight
The output end for flowing current transformer 3 is connected with the analog signalses interface 34；
Input of the output end of the measured DC transformer 3 also with the combining unit 33 is connected, the conjunction
And the output end of unit 33 is connected with the digital quantity signal interface 35 and the sync cap 36 respectively.
The analog signalses interface 34 is used to be acquired analog quantity current value filtering process, extracts analog quantity electric current
DC component under value different frequency, obtains DC current values.
The digital quantity signal interface 35 is used to be acquired digital quantity current value filtering process, extracts digital quantity electric current
DC component under value different frequency, obtains DC digital amount current value.
The signal of DC current transformer transient state source standard set-up 2 and measured DC transformer 3, in synchronizing signal
It is acquired under control, with the delay difference for avoiding asynchronous sampling from causing.DC current transformer transient response characteristic tester 1
Synchronizing signal exported using standard compliant smooth pulse per second (PPS) and IRIG-B.
Wherein, movie module (not shown) is additionally provided with DC current transformer transient state source standard set-up 2, is direct current
Current transformer transient state source standard set-up 2 provides power supply.Step current signal generator 22 is produced under the control of master controller 21
Step current, after the first wave filter 25 is filtered, amplifies via the first signal power amplifier 28, produces step once electric
Stream.
Step voltage signal generator 23 is connected after the second wave filter 26 is filtered with step voltage generator 29, and
Voltage signal needed for generation system.
The signal that Hvdc Systems emulation signal generator 24 is produced, by after the filtering of the 3rd wave filter 27, passing through
Amplified by secondary signal power amplifier 30, produce the transient DC signal of different faults type, then exported by transient state source
Device 31, output to standard transient current transformer 31 and measured DC transformer 3.
If measured DC transformer 3 be analog output type, the secondary singal of standard transient current transformer 31 and
The secondary singal of measured DC transformer 3 is believed by the analog quantity of DC current transformer transient response characteristic tester 1
Number interface is sent to DC current transformer transient response characteristic tester 1, completes test.
If measured DC transformer 3 is digital output type, the secondary singal of standard transient current transformer 31 connects
Be connected to the analog signalses interface of DC current transformer transient response characteristic tester 1, measured DC transformer 3 via
Combining unit 33, is connected to digital quantity signal interface 35 and sync cap 36, and the step for completing measured DC transformer 3 is rung
Should with spread all over characteristic test.
DC current transformer transient response characteristic test system provided in an embodiment of the present invention, compatible different pieces of information transmission
Agreement and the access of digital quantity and analog quantity is taken into account, improve compatibility, the operability at scene.
A kind of DC current transformer transient response characteristic test system is provided using embodiment of the present utility model, to quilt
The process for surveying the transient response characteristic test of DC current transformer 3 is as follows：
First, DC current transformer transient response characteristic tester 1 obtains step signal standard value and step signal reality
Actual value, the step signal standard value is produced by DC current transformer transient state source standard set-up 2, the step signal actual value
Secondary singal according to measured DC transformer 3 is obtained.
The step signal standard value produced by DC current transformer transient state source standard set-up 2, and tested direct current
The step signal actual value that current transformer 3 is produced, it is possible to achieve the step response attribute testing of DC current transformer.
Then, according to the step signal standard value and the step signal actual value, measured DC mutual inductance is calculated
The step signal error of device 3 and DC current transformer transient state source standard set-up 2.
Specifically, according to the step signal standard value and the step signal actual value, measured DC is calculated mutual
The step signal error of sensor and DC current transformer transient state source standard set-up, including：
According to the step signal standard value and the step signal actual value, calculate measured DC transformer with it is straight
The step response maximum overshoot error and rise time error of stream current transformer transient state source standard set-up.
Transient signal standard value and transient signal actual value are obtained, the transient signal standard value is DC current transformer
Transient signal standard value of the transient state source standard set-up simulated direct-current power transmission system under different faults, the transient signal actual value
Secondary singal according to measured DC transformer is obtained.
According to the transient signal standard value of DC current transformer transient state source standard set-up, and measured DC mutual inductance
The transient signal actual value of device, is capable of achieving the verification that DC current transformer feelings transient state under different faults mode spreads all over characteristic.
Specifically, transient signal standard value and transient signal actual value are obtained, the transient signal standard value is direct current
Transient signal standard value of the current transformer transient state source standard set-up simulated direct-current power transmission system under different faults, the transient state letter
Number actual value is obtained according to the secondary singal of measured DC transformer, including：Transient signal standard value is obtained, each is obtained
AC compounent standard value and DC component standard value under frequency, the transient signal standard value are DC current transformer transient state
Transient signal of the source standard set-up simulated direct-current power transmission system under ground electrode circuit failure, polar curve earth fault and short trouble
Standard value；And the transient signal actual value that measured DC transformer is produced is obtained, obtain measured DC transformer
AC compounent actual value and DC component actual value at respective frequencies.
Afterwards, according to the transient signal standard value and the transient signal actual value, measured DC mutual inductance is calculated
The transient signal error of device and DC current transformer transient state source standard set-up.
Specifically, according to the transient signal standard value and the transient signal actual value, measured DC is calculated mutual
The transient signal error of sensor and DC current transformer transient state source standard set-up, including：According to the AC compounent standard value
With DC component standard value, and the AC compounent actual value and DC component actual value, measured DC mutual inductance is calculated
The transient response peak-peak instantaneous error of device and DC current transformer transient state source standard set-up, combination misalignment, traveling wave and temporarily
State amount error.
Finally, according to the step signal error and the transient signal error, measured DC transformer is evaluated
Transient response characteristic.
Specifically, according to the step signal error and the transient signal error, measured DC transformer is evaluated
Transient response characteristic, including：According to combination misalignment computing formula, the compound mistake of the measured DC transformer is calculated
Difference, the combination misalignment computing formula is as follows：
Wherein, Ip is a root-mean-square valve for transient current, and T is a cycle period, and K is nominal transformation ratio, and is is transient state
Signal standards value, ip is tested direct current instrument transformer secondary singal, and t is instantaneous time.
According to the combination misalignment, the transient response characteristic of the measured DC transformer is evaluated.
Further, the system can be with：According to the AC compounent standard value, the AC compounent under each frequency is drawn
Standard value oscillogram；According to the AC compounent actual value, the AC compounent actual value oscillogram under each frequency is drawn；According to
The AC compounent standard value oscillogram and the matching degree of AC compounent actual value oscillogram, evaluate the measured DC
The precision of transformer；And, according to the transient signal standard value and the correlation of the transient signal actual value, evaluate institute
The traveling wave and transient for stating measured DC transformer spread all over precision.
DC current transformer transient response characteristic test system provided in an embodiment of the present invention, using synchronization check, energy
Enough step responses completed to measured DC transformer, peak-peak instantaneous error, combination misalignment, traveling wave and transient are missed
Difference verification dependence test；The transient response characteristic comprehensive evaluation analysis to measured DC transformer, waveform are provided simultaneously with to paint
The functions such as system analysis, report generation, realize the transient response property integrity test to measured DC transformer, improve
The ability and effect of DC current transformer transient response attribute testing.
As known from the above, the utility model embodiment provides a kind of DC current transformer transient response characteristic test system
System, including：DC current transformer transient state source standard set-up 2 and DC current transformer transient response characteristic tester 1, it is described
DC current transformer transient response characteristic tester 1 respectively with the DC current transformer transient state source standard set-up 2, and
Measured DC transformer 3 is connected；Step signal mark can be obtained by DC current transformer transient response characteristic tester 1
Quasi- value and step signal actual value, step signal standard value are produced by DC current transformer transient state source standard set-up 2, step letter
Number actual value is obtained according to the secondary singal of measured DC transformer 3；By DC current transformer transient response characteristic
Tester 1, according to step signal standard value and step signal actual value, calculates measured DC transformer 3 and DC current
The step signal error of transformer transient source standard set-up 2；Obtained by DC current transformer transient response characteristic tester 1
Transient signal standard value and transient signal actual value, transient signal standard value are DC current transformer transient state source standard set-up 2
Transient signal standard value of the simulated direct-current power transmission system under different faults, transient signal actual value is mutual according to measured DC
The secondary singal of sensor 3 is obtained；By DC current transformer transient response characteristic tester 1 according to transient signal standard value and
Transient signal actual value, calculates measured DC transformer 3 and believes with the transient state of DC current transformer transient state source standard set-up 2
Number error；By DC current transformer transient response characteristic tester 1 according to step signal error and transient signal error, comment
The transient response characteristic of valency measured DC transformer 3；The utility model embodiment passes through DC current transformer transient state source
The step signal standard value that standard set-up is produced, and the step signal actual value that measured DC transformer is produced, realize
The step response characteristic test of DC current transformer；According to the transient signal mark of DC current transformer transient state source standard set-up
Quasi- value, and measured DC transformer transient signal actual value, realize DC current transformer in different faults mode
Lower feelings transient state spreads all over the test of characteristic；And rung according to the transient state of test result overall merit measured DC transformer twice
Answer characteristic, integrality of the lifting to the transient response characteristic test of measured DC transformer.
Above-described the utility model implementation method does not constitute the restriction to the utility model protection domain.
Claims (5)
1. a kind of DC current transformer transient response characteristic test system, it is characterised in that the system includes：DC current
Transformer transient source standard set-up (2) and DC current transformer transient response characteristic tester (1), the DC current mutual inductance
Device transient response characteristic tester (1) respectively with the DC current transformer transient state source standard set-up (2), and tested direct current
Current transformer (3) is connected；
The DC current transformer transient state source standard set-up (2) includes：Master controller (21), step current signal generator
(22), the first wave filter (25), the first signal power amplifier (28), step voltage signal generator (23), the second wave filter
(26), step voltage generator (29), Hvdc Systems emulate signal generator (24), the 3rd wave filter (27), the
Binary signal power amplifier (30), transient state source follower (31) and standard transient current transformer (32)；
The output end of the master controller (21) respectively with input, the step of the step current signal generator (22)
The input of the input of voltage signal generator (23) and Hvdc Systems emulation signal generator (24)
Connection；
The output end of the step current signal generator (22) and first wave filter (25) and the first signal work(
Rate amplifier (28) is sequentially connected；The output end of the step voltage signal generator (23) and second wave filter (26) with
And the step voltage generator (29) is sequentially connected；
The output end of Hvdc Systems emulation signal generator (24) and the 3rd wave filter (27) and institute
Secondary signal power amplifier (30) is stated to be sequentially connected；
First signal power amplifier (28), the step voltage generator (29) and the secondary signal power amplification
Device (30) is connected with transient state source follower (31) respectively；
Transient state source follower (31) is connected with the standard transient current transformer (32)；The standard transient current mutual inductance
Device (32) is connected and the DC current transformer transient response characteristic tester with the measured DC transformer (3)
(1) connect.
2. the system as claimed in claim 1, it is characterised in that the DC current transformer transient response characteristic tester
(1) analog signalses interface (34) and digital quantity signaling interface (35) are provided with；
The output end of the standard transient current transformer (32) is connected with the analog signalses interface (34), described tested straight
Stream current transformer (3) is connected with the analog signalses interface (34) and the digital quantity signal interface (35).
3. system as claimed in claim 2, it is characterised in that the system also includes combining unit (33), described tested straight
The output end of stream current transformer (3) is connected with the input of the combining unit (33), the output of the combining unit (33)
End is connected with the digital quantity signal interface (35).
4. system as claimed in claim 3, it is characterised in that the DC current transformer transient response characteristic tester
(1) sync cap (36) is additionally provided with, the output end of the combining unit (33) is connected with the sync cap (36).
5. system as claimed in claim 4, it is characterised in that the system also includes printer, the printer with it is described
DC current transformer transient response characteristic tester (1) is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010917.9U CN206311749U (en) | 2017-01-05 | 2017-01-05 | DC current transformer transient response characteristic test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720010917.9U CN206311749U (en) | 2017-01-05 | 2017-01-05 | DC current transformer transient response characteristic test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311749U true CN206311749U (en) | 2017-07-07 |
Family
ID=59248904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720010917.9U Active CN206311749U (en) | 2017-01-05 | 2017-01-05 | DC current transformer transient response characteristic test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311749U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422212A (en) * | 2017-08-23 | 2017-12-01 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of electronic direct current transformer transient characterisitics experimental rig and control method |
| CN109143142A (en) * | 2018-07-26 | 2019-01-04 | 广东电网有限责任公司 | A kind of direct current transient state step source signal adaptive regulation method and device |
| CN113640560A (en) * | 2021-10-13 | 2021-11-12 | 国网江西省电力有限公司电力科学研究院 | Method for generating parameterized trans-interval direct current step digital signals |
| JP7385184B2 (en) | 2020-08-06 | 2023-11-22 | 雲南電網有限責任公司電力科学研究院 | High speed current amplification system and method for high speed current amplification based on power amplifier |
-
2017
- 2017-01-05 CN CN201720010917.9U patent/CN206311749U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107422212A (en) * | 2017-08-23 | 2017-12-01 | 国网电力科学研究院武汉南瑞有限责任公司 | A kind of electronic direct current transformer transient characterisitics experimental rig and control method |
| CN107422212B (en) * | 2017-08-23 | 2023-08-08 | 国网电力科学研究院武汉南瑞有限责任公司 | Transient characteristic test device and control method for electronic direct current transformer |
| CN109143142A (en) * | 2018-07-26 | 2019-01-04 | 广东电网有限责任公司 | A kind of direct current transient state step source signal adaptive regulation method and device |
| JP7385184B2 (en) | 2020-08-06 | 2023-11-22 | 雲南電網有限責任公司電力科学研究院 | High speed current amplification system and method for high speed current amplification based on power amplifier |
| CN113640560A (en) * | 2021-10-13 | 2021-11-12 | 国网江西省电力有限公司电力科学研究院 | Method for generating parameterized trans-interval direct current step digital signals |
| CN113640560B (en) * | 2021-10-13 | 2022-03-11 | 国网江西省电力有限公司电力科学研究院 | Method for generating parameterized trans-interval direct current step digital signals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106772198A (en) | DC current transformer transient response characteristic test method, system and device | |
| CN206311749U (en) | DC current transformer transient response characteristic test system | |
| CN207051383U (en) | A kind of intelligent apparatus for avoiding electricity fraudulent | |
| CN105548942A (en) | System and method for analyzing transient characteristics of electronic current transformer | |
| CN103969536A (en) | Transient characteristic test system and method of mutual inductor based on digital simulation of Rogowski coil | |
| CN104090206A (en) | Direct-current measurement system testing platform of direct-current power transmission project and testing method of direct-current power transmission project | |
| Rathnayaka et al. | On-line impedance monitoring of transformer based on inductive coupling approach | |
| CN104237758A (en) | Method for testing impulse withstand voltages of ultrahigh-voltage converter transformers on basis of scale models | |
| CN101769968B (en) | Mutual inductor no-load voltage ratio tester | |
| CN102426321A (en) | Test method for simulating electrification of current transformer primary device during power transmission debugging | |
| CN205484760U (en) | Electronic type current transformer transient characterisitics analytic system | |
| CN109307816A (en) | Power equipment test method based on substation's hybrid electromagnetic interference simulation | |
| CN103076560B (en) | Electrical test equipment non-contact measurement combination unit and application thereof | |
| CN206411250U (en) | A kind of DC electronic current transformer digitizes real-time calibration equipment | |
| CN107219492B (en) | Medium voltage network electrical energy measurement high pressure integration semi-physical simulation device | |
| CN102393511A (en) | Online error verification device and test method for electronic electric energy meter rapid transient pulse train | |
| CN104794968B (en) | Low-voltage electric energy metering is installed and wiring analysis comprehensive training device | |
| CN103439072A (en) | electronic current transformer one-time coupling vibration test device and method thereof | |
| CN205049724U (en) | Sky device is put to electric current of transformer core earth current on -line monitoring equipment | |
| CN106772199A (en) | A kind of DC current transformer frequency response characteristic check system and method | |
| CN103592552A (en) | Instrument and method for testing characteristics of overvoltage protection device | |
| CN106707093A (en) | Synchronization generator stator turn-to-turn short circuit detection method based on RSO method | |
| Kikkert | An on-line PLC frequency impedance analyzer | |
| CN206470383U (en) | A kind of capacitive equipment on-Line Monitor Device check system | |
| CN205844509U (en) | A kind of phase error detecting apparatus of electronic transducer calibration instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |