CN202330689U - Tester for overall characteristic of mutual inductor - Google Patents
Tester for overall characteristic of mutual inductor Download PDFInfo
- Publication number
- CN202330689U CN202330689U CN2011202913779U CN201120291377U CN202330689U CN 202330689 U CN202330689 U CN 202330689U CN 2011202913779 U CN2011202913779 U CN 2011202913779U CN 201120291377 U CN201120291377 U CN 201120291377U CN 202330689 U CN202330689 U CN 202330689U
- Authority
- CN
- China
- Prior art keywords
- current
- mutual inductor
- controller
- tester
- overall characteristic
- 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
- Inverter Devices (AREA)
Abstract
The utility model relates to a tester for overall characteristic of a mutual inductor. The tester comprises a controller, an inverter power supply and a current voltage collector. The controller comprises an input device, a display, a DSP (Digital Signal Processor), an SPWM (Sinusoidal Pulse Width Modulation) signal generator, wherein the input device is connected with the SPWN signal generator by the DSP; the inverter power supply is arranged between the controller and the current voltage mutual inductor; and the current voltage collector is arranged between the current voltage mutual inductor and the controller. The tester substitutes a current booster and a voltage regulator due to such detects as heaviness, large size, difficulty in carrying, inability of automatically analyzing and forecasting the test data, and the like thereof, can conveniently detect and analyze the mutual inductor, so that the detecting personnel can timely know the working condition of the mutual inductor and timely take the relevant maintenance measures.
Description
Technical field
The utility model relates to a kind of proving installation, particularly a kind of electric system current transformer proving installation.
Background technology
Existing transformer test appearance generally adopts digital display meter, current lifting device and pressure regulator three parts to form.Current lifting device and pressure regulator because of heavy, volume greatly, not portable, shortcomings such as life-span can not analyzed and forecast to test data automatically.
The utility model content
The purpose of the utility model is to provide a kind of mutual inductor overall characteristic measuring and analysing meter, with overcome current lifting device and pressure regulator because of heavy, volume greatly, not portable, test data can not be analyzed and shortcoming such as forecast automatically.
The technical scheme that adopts of the utility model is for this reason: the utility model comprise controller, inverter and and the current/voltage collector; Said controller: comprise input media, display, DSP digital signal processor, SPWM signal generator, input media connects the SPWM signal generator through the DSP digital signal processor; Said inverter is arranged between controller and the current-voltage transformer, establishes the current/voltage collector between current-voltage transformer and the controller.
Described inverter comprises the driving circuit that is connected with the SPMW signal generator and is connected the inverter circuit on the current-voltage transformer.
Establish wave filter between said inverter circuit and the current-voltage transformer.
Said current-voltage transformer connects the DSP digital signal processor through the current/voltage collector.
Establish the overcurrent protection output circuit between said DSP digital signal processor and the driving circuit.
The utility model has the advantages that: the utility model replace current lifting device and pressure regulator because of heaviness, volume greatly, not portable, test data can not be analyzed and shortcoming such as forecast automatically.Can easily detect and analyze mutual inductor, make working condition that the testing staff can understand mutual inductor timely in time to take the associated maintenance measure.
Description of drawings
Fig. 1 is the composition frame chart of the utility model.
Fig. 2 is the utility model work block diagram.
Fig. 3 is the Control work block diagram of the utility model controller.
Embodiment
The utility model comprise controller, inverter and and the current/voltage collector; Said controller: comprise input media, display, DSP digital signal processor, SPWM signal generator, input media connects the SPWM signal generator through the DSP digital signal processor; Said inverter is arranged between controller and the current-voltage transformer, establishes the current/voltage collector between current-voltage transformer and the controller.
Described inverter comprises the driving circuit that is connected with the SPMW signal generator and is connected the inverter circuit on the current-voltage transformer.
Establish wave filter between said inverter circuit and the current-voltage transformer.
Said current-voltage transformer connects the DSP digital signal processor through the current/voltage collector.
Establish the overcurrent protection output circuit between said DSP digital signal processor and the driving circuit.
The course of work of the utility model is: controller sends control signal and makes current-voltage transformer work through inverter output; Current-voltage transformer through the current/voltage collector with related data transmission to controller, controller shows related data through display.
The data of its detection of controller of the utility model include: PT volt-ampere characteristic, CT volt-ampere characteristic, PT no-load voltage ratio, CT no-load voltage ratio.
Claims (5)
1. mutual inductor overall characteristic tester is characterized in that, comprise controller, inverter and and the current/voltage collector; Said controller: comprise input media, display, DSP digital signal processor, SPWM signal generator, input media connects the SPWM signal generator through the DSP digital signal processor; Said inverter is arranged between controller and the current-voltage transformer, establishes the current/voltage collector between current-voltage transformer and the controller.
2. mutual inductor overall characteristic tester according to claim 1 is characterized in that, described inverter comprises the driving circuit that is connected with the SPMW signal generator and is connected the inverter circuit on the current-voltage transformer.
3. mutual inductor overall characteristic tester according to claim 2 is characterized in that, establishes wave filter between said inverter circuit and the current-voltage transformer.
4. mutual inductor overall characteristic tester according to claim 1 is characterized in that, said current-voltage transformer connects the DSP digital signal processor through the current/voltage collector.
5. mutual inductor overall characteristic tester according to claim 2 is characterized in that, establishes the overcurrent protection output circuit between said DSP digital signal processor and the driving circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202913779U CN202330689U (en) | 2011-08-12 | 2011-08-12 | Tester for overall characteristic of mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202913779U CN202330689U (en) | 2011-08-12 | 2011-08-12 | Tester for overall characteristic of mutual inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202330689U true CN202330689U (en) | 2012-07-11 |
Family
ID=46442665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202913779U Expired - Fee Related CN202330689U (en) | 2011-08-12 | 2011-08-12 | Tester for overall characteristic of mutual inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202330689U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022017A (en) * | 2015-07-22 | 2015-11-04 | 国家电网公司 | Portable CT circuit flow test instrument |
-
2011
- 2011-08-12 CN CN2011202913779U patent/CN202330689U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105022017A (en) * | 2015-07-22 | 2015-11-04 | 国家电网公司 | Portable CT circuit flow test instrument |
| CN105022017B (en) * | 2015-07-22 | 2018-02-02 | 国家电网公司 | A kind of portable CT current injection of circuits tester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203324398U (en) | Distributed photovoltaic inverter testing system | |
| CN201141891Y (en) | Power consumption collection module | |
| CN103176066B (en) | Digitalized electric energy quality monitoring device | |
| CN104777444B (en) | Arrester discharge counter comprehensive calibrator and method of calibration | |
| CN203616394U (en) | An intelligent insulation resistance tester | |
| CN103964312B (en) | Electric block energy efficiency testing device and test method | |
| CN201749136U (en) | In-situ quick checking, analyzing and judging device with electricity stealing prevention | |
| CN103439546A (en) | Electric energy measuring system and method for low-voltage user photovoltaic power generation | |
| CN202372592U (en) | Electric energy quality monitoring instrument | |
| CN202975222U (en) | Integrated tester for secondary circuit of current transformer | |
| CN202102046U (en) | Harmonic monitor capable of displaying harmonic flow direction | |
| CN202330689U (en) | Tester for overall characteristic of mutual inductor | |
| CN205860889U (en) | A kind of portable fuse photoelectric properties tester | |
| CN203479855U (en) | Photovoltaic generating electric energy metering system for low-voltage users | |
| CN202066925U (en) | Harmonic monitor of electric network | |
| CN201335879Y (en) | Switch performance testing device | |
| CN109188329B (en) | Portable phase volt-ampere meter function inspection tester | |
| CN201689169U (en) | Detector for low-voltage electric energy metering device | |
| CN203337801U (en) | Novel conductance tester used for storage battery | |
| CN202939297U (en) | Verification system for ground resistance tester | |
| CN205751741U (en) | A kind of Multifunction transformer degaussing gear | |
| CN202854238U (en) | Portable transformer direct current resistance tester | |
| CN203759119U (en) | Electric power user low-voltage harmonic wave on-line monitoring device | |
| CN110554308A (en) | Characteristic analyzer for electric operating mechanism of isolating switch | |
| CN205643658U (en) | Ripple measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20130812 |