CN202939248U - Transformer calibrator - Google Patents
Transformer calibrator Download PDFInfo
- Publication number
- CN202939248U CN202939248U CN 201220664017 CN201220664017U CN202939248U CN 202939248 U CN202939248 U CN 202939248U CN 201220664017 CN201220664017 CN 201220664017 CN 201220664017 U CN201220664017 U CN 201220664017U CN 202939248 U CN202939248 U CN 202939248U
- Authority
- CN
- China
- Prior art keywords
- transformer
- inductor
- mutual
- tester
- fpga
- 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 - Lifetime
Links
Images
Abstract
The utility model belongs to the technical field of transformer calibration and relates to a transformer calibrator. The transformer calibrator comprises a DSP, an FPGA, an optical fiber interface, a standard transformer, a transformer, a signal conditioning unit and an analog-digital conversion unit, wherein the standard transformer and the transformer are connected with the DSP through the signal conditioning unit, the analog-to-digital conversion unit and the FPGA, and the FPGA is further connected with the optical fiber interface. The transformer calibrator of the utility model integrates the functions of an electronic transformer and a traditional transformer, can be used to carry out on-site detection conveniently and has a more comprehensive range of detection items.
Description
Technical field
The utility model relates to the transducer check technical field, particularly a kind of mutual-inductor tester.
Background technology
The electric system mutual inductor is that the information with electrical network high voltage, large electric current is delivered to metering, measurement instrument and the relay protection of low-voltage, little electric current secondary side, a kind of special transformer of aut.eq.; the quality of its performance directly has influence on the reliability that power system measuring, measurement accuracy and relay protection move.
mutual-inductor tester is the special electric power checkout equipment that is specifically designed to verification mutual inductor performance, difference according to the mutual inductor type that detects, mutual-inductor tester is divided into again traditional mutual-inductor tester and electronic transducer calibration instrument, its difference is, the tradition mutual-inductor tester is mainly for detection of output simulation high voltage, traditional mutual inductor of large electric current, electronic transducer calibration instrument is for detection of the electronic mutual inductor of exporting digital quantity and simulation small-signal, can not carry out verification to traditional mutual inductor, function singleness will certainly cause certain wasting of resources, therefore need a kind of calibration equipment both to detect electronic mutual inductor, also can detect traditional mutual inductor.In addition, the test event that existing electronic transducer calibration instrument can carry out is comprehensive not, can not react the characteristic of electronic mutual inductor comprehensively.
Summary of the invention
The utility model has overcome the defective of prior art, a kind of mutual-inductor tester is provided, both can carry out verification to electronic mutual inductor, can detect traditional mutual inductor again, and more fully detected electrons formula mutual inductor, comprise shake and the detection etc. of delaying time of the message of the merge cells output that is connected with electronic mutual inductor.
The utility model discloses a kind of mutual-inductor tester, this tester comprises DSP, FPGA, optical fiber interface, standard mutual inductor, mutual inductor, signal condition unit and AD conversion unit, this standard mutual inductor, mutual inductor respectively through this signal condition unit, AD conversion unit, FPGA be connected with this DSP, this FPGA also is connected with this optical fiber interface.
Further, this tester also comprises the counting module that is connected with this DSP.
Further, this tester also comprises the GPS interface that is connected with this FPGA.
Further, this tester also comprises the external interface that is connected with this FPGA.
Further, this external interface is network interface.
The beneficial effect of the disclosed a kind of mutual-inductor tester of the utility model is: the one, and, the verifying function of fusion electronic mutual inductor and traditional mutual inductor facilitates Site Detection; The 2nd,, can more fully detect electronic mutual inductor, comprise the message shake of the merge cells that is connected with electronic mutual inductor, the detection of time-delay, thus the defective of discovery electronic mutual inductor hop etc.
Description of drawings
Fig. 1 is a kind of mutual-inductor tester structural drawing according to the utility model embodiment.
Fig. 2 is the alternative mutual-inductor tester structural drawing according to the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, a kind of mutual-inductor tester 10 of this new embodiment, comprise DSP11, FPGA12, optical fiber interface 13, standard mutual inductor 14, mutual inductor 15, signal condition unit 16 and AD conversion unit 17, standard mutual inductor 14, mutual inductor 15 respectively through the signal condition unit 16, AD conversion unit 17, FPGA12 be connected with DSP11, FPGA12 also is connected with optical fiber interface 13.
Wherein, DSP11 is used for sending steering order according to different test requests to FPGA12, and test result is calculated and processed.Optical fiber interface 13 is used for the digital output end of connecting electronic formula mutual inductor, under the control of FPGA12, the digital signal of tested electronic mutual inductor output is transferred to DSP11 through FPGA12, and the simulation small-signal of electronic mutual inductor output can directly be nursed one's health, be changed and be gathered through signal condition unit 16 and AD conversion unit 17, thereby realizes detection and the verification of electronic mutual inductor.For traditional mutual inductor, voltage, the current amplitude of its output are larger, after needing to be converted to low-voltage, little electric current through mutual inductor 15, could be by collection, verification, and mutual inductor 15 can be voltage transformer (VT) or current transformer.
Referring to Fig. 2, the another kind of mutual-inductor tester 20 of this new embodiment except all constituents that comprises tester 10, also comprises counting module 21, GPS interface 22 and external interface 23, counting module 21 is connected with DSP11, and GPS interface 22 is connected with FPGA12 respectively with external interface 23.By counting module 21, this tester 20 can be measured the message shake of the merge cells that is connected with electronic mutual inductor and postpone, thereby finds the defective of electronic mutual inductor sampled value hop.By GPS interface 22, but input and the output of the signal of this tester 20 synchronization criterion mutual inductors and tested electronic mutual inductor or traditional mutual inductor.By external interface 23, this tester 20 can be realized the fast transport of data, and this external interface 23 is generally network interface.
Above embodiment only is used for explanation the utility model; and be not limitation of the utility model; the those of ordinary skill in relevant technologies field; in the situation that do not break away from spirit and scope of the present utility model; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present utility model, and scope of patent protection of the present utility model should be defined by the claims.
Claims (5)
1. mutual-inductor tester, it is characterized in that, described tester comprises DSP, FPGA, optical fiber interface, standard mutual inductor, mutual inductor, signal condition unit and AD conversion unit, described standard mutual inductor, mutual inductor respectively through described signal condition unit, AD conversion unit, FPGA be connected with described DSP, described FPGA also is connected with described optical fiber interface.
2. mutual-inductor tester according to claim 1, is characterized in that, described tester also comprises the counting module that is connected with described DSP.
3. mutual-inductor tester according to claim 1 and 2, is characterized in that, described tester also comprises the GPS interface that is connected with described FPGA.
4. mutual-inductor tester according to claim 1 and 2, is characterized in that, described tester also comprises the external interface that is connected with described FPGA.
5. mutual-inductor tester according to claim 4, is characterized in that, described external interface is network interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664017 CN202939248U (en) | 2012-12-06 | 2012-12-06 | Transformer calibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220664017 CN202939248U (en) | 2012-12-06 | 2012-12-06 | Transformer calibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202939248U true CN202939248U (en) | 2013-05-15 |
Family
ID=48323479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220664017 Expired - Lifetime CN202939248U (en) | 2012-12-06 | 2012-12-06 | Transformer calibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202939248U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293504A (en) * | 2013-06-04 | 2013-09-11 | 国家电网公司 | On-site current transformer comprehensive detector and testing method thereof |
-
2012
- 2012-12-06 CN CN 201220664017 patent/CN202939248U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293504A (en) * | 2013-06-04 | 2013-09-11 | 国家电网公司 | On-site current transformer comprehensive detector and testing method thereof |
| CN103293504B (en) * | 2013-06-04 | 2016-01-20 | 国家电网公司 | The method of testing of on-site current transformer comprehensive detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201373895Y (en) | Online monitoring device of zinc oxide arrester (MOA) | |
| CN102073029B (en) | Electronic mutual inductor test system and test method | |
| CN103149546B (en) | The field integrated tester of a kind of portable electric energy measuring terminal | |
| CN201936442U (en) | On-line monitoring system for capacitance voltage transformer | |
| CN101770006A (en) | Novel method for checking electronic transducer | |
| CN102129763A (en) | CVT (Capacitor Voltage Transformer) online monitoring system | |
| CN101482602A (en) | Detection analysis system of relay-protection tester | |
| CN103135013A (en) | Detecting and evaluating system of data acquisition unit | |
| CN103454611A (en) | Electric energy metering device remote calibration detection system and secondary voltage drop detection method | |
| CN110171319B (en) | Three-phase standard alternating-current charging pile capable of being used for tracing | |
| CN101556323A (en) | Digital electric energy meter checking device with actual loading checking | |
| WO2018018467A1 (en) | Method for calibrating short circuit test measurement system for electric appliance | |
| CN102879758A (en) | Standard source and detecting device both used for detecting harmonic influence quantity of electronic current transformer | |
| CN203658453U (en) | Wireless secondary voltage-drop and load tester provided with wireless synchronous communication function | |
| CN105301552A (en) | Electric energy metering device online verification system | |
| CN202661620U (en) | Verification system for electronic-type mutual inductor and for merging unit | |
| CN104237621A (en) | Integrated monitoring system and monitoring method for high-voltage cable | |
| CN103235279B (en) | A kind of electric mutual inductor output verification device | |
| CN104569899A (en) | High-accuracy high-voltage direct-current transformer calibrator | |
| CN202402198U (en) | Ignition energy detection device for magneto | |
| CN201955465U (en) | Electronic transformer test system | |
| CN204116451U (en) | A kind of Energy Efficiency of Distribution Transformer measuring and testing device | |
| CN202939248U (en) | Transformer calibrator | |
| CN201859212U (en) | Novel calibration device of electronic type mutual inductor | |
| CN202362445U (en) | Electronic type mutual inductor on-site check meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
|
| CX01 | Expiry of patent term |