CN108508395A - A kind of electronic transformer test system - Google Patents
A kind of electronic transformer test system Download PDFInfo
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- CN108508395A CN108508395A CN201710105341.9A CN201710105341A CN108508395A CN 108508395 A CN108508395 A CN 108508395A CN 201710105341 A CN201710105341 A CN 201710105341A CN 108508395 A CN108508395 A CN 108508395A
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- conversion
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- filtering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The present invention relates to a kind of electronic transformer test systems, belong to transformer technical field；The voltage sensor module, temperature sensing module are connect with filtering and Signal-regulated kinase；The filtering and Signal-regulated kinase are connect with logic control circuit；The filtering and Signal-regulated kinase and A D convert one and connect；The A D conversion one with E O conversion connect；The A D conversion one, E O conversion respectively with A D conversion 2 10, O E conversion connect；The O E conversions, A D conversions two are connected with each other, reasonable design connects simply, conveniently, and the effect tested is good, it is converted between each data simple, signal receives clear and definite, efficient, the good stability of detection, flexibility is good, the present invention has the advantages that simple in structure, setting is reasonable, low manufacture cost.
Description
Technical field
The present invention relates to a kind of electronic transformer test systems, belong to transformer technical field.
Background technology
Mutual inductor (instrument transformer) is also known as instrument transformer, is current transformer and mutual induction of voltage
The general designation of device.Can high voltage be become to low-voltage, high current becomes low current, for measuring or protecting system.Its function is main
It is that at normal low voltage (100V) or standard small electric current, (5A or 1A are referred both to specified by high voltage or high current scaling transformation
Value), to realize standardization, the miniaturization of measuring instrumentss, protection equipment and automatic control equipment.Mutual inductor may further be used to simultaneously
High-voltage system is separated, to ensure the safety of the person and equipment.
Electric mutual inductor has the advantages that many compared with conventional electromagnetic mutual inductor；With photoelectron technology, microelectronics
The current electronic mutual inductor of development of technology and the communication technology has stepped into practical stage；Minor mutual inductor is full with no magnetic
With frequency response range is wide, transient characterisitics are good, insulation system is simple, can be with there is no second open circuit or the hidden danger etc. of short circuit
With optical cable instead of cable in digital signal output transmission；It fundamentally solves mutual inductor to be transmitted across in electric current, voltage signal
Generated additive error in journey；Be conducive to substation and realize data sharing；It disclosure satisfy that the automation of transformation substations of higher degree
Demand.Many mechanisms are dedicated to the development Switzerland ABB of electronic mutual inductor, France ALSTOM, Japan NGK both at home and abroad for a long time
Shaped article is all developed Deng world renowned company and has longer hanging net operation experience.China research work starting compared with
Evening；But progress is very fast.
Main equipment one of of the mutual inductor as electric system be widely used in measurement of power, monitoring, protection, recording and
The technical fields such as ranging are in order to ensure the accuracy of electronic mutual inductor；Ensure that system is safe and stable, it is necessary to these mutual inductors
It is tested.But electric mutual inductor is sent out compared with traditional mutual inductor in the mode of measuring principle, structure and output signal
Basic change is given birth to, traditional mutual inductor measuring method for testing is not particularly suited for electronic mutual inductor.
Invention content
In view of the defects and deficiencies of the prior art, the present invention intends to provide a kind of reasonable designs, easy to use
Electronic transformer test system.
To achieve the above object, the technical solution adopted by the present invention is：It includes current detection module, current protection mould
Block, voltage sensor module, temperature sensing module, filtering and Signal-regulated kinase, logic control circuit, A D conversion one, E O turn
Change, O E conversion, A D conversion two, measure protection module, PC interfaces；The current detection module, overcurrent protection module mutually interconnect
It connects, and current detection module, overcurrent protection module are connect with filtering and Signal-regulated kinase respectively；The voltage sensor module,
Temperature sensing module is connect with filtering and Signal-regulated kinase；The filtering and Signal-regulated kinase connect with logic control circuit
It connects；The filtering and Signal-regulated kinase and A D convert one and connect；The A D conversion one with E O conversion connect；The A D turn
Change one, E O conversion respectively with A D conversion 2 10, O E conversion connect；The O E conversions, A D conversions two are connected with each other, and O E
Conversion, A D conversion two with measure protection module connect；The measurement protection module is connect with PC interfaces.
As preferred；The filtering and Signal-regulated kinase, logic control circuit are connect with constant-current circuit respectively；The perseverance
Current circuit is connect with power supply.
Preferably, the E O conversion, O E conversion between pass through optical fiber transmission data.
Preferably, the O E conversion, A D conversion two in be equipped with A D conversion one, E O conversion connection logic control
Circuit.
The present invention utilizes Faraday magnetooptical effect, when a branch of linearly polarized photon passes through the optical fiber or bulk that are placed in magnetic field
When crystal glass, if the direction of propagation of light is identical as magnetic direction, plane of polarization will rotate, and rotation angle is proportional to magnetic field
Line integral of the intensity along polarised light passage path.
Residual stress inside optical element generates the linear birefrigence varied with temperature in the present invention, when optical glass and
When optical fiber is vibrated and other machinery disturbs, it is equivalent to introducing stress, equally causes linear birefrigence.
With the above structure, the present invention has the beneficial effect that：A kind of electronic transformer test system of the present invention,
Reasonable design connects simply, conveniently, and the effect tested is good, is converted between each data simply, and signal reception clear and definite is examined
Efficient, the good stability surveyed, flexibility is good, and the present invention has the advantages that simple in structure, setting is reasonable, low manufacture cost.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the present invention.
Reference sign：
Current detection module 1, overcurrent protection module 2, voltage sensor module 3, temperature sensing module 4, filtering and signal tune
Manage module 5, logic control circuit 6, A D conversion 1, E O conversion 8, O E conversion 9, A D conversion 2 10, measure protection module
11, PC interfaces 12.
Specific implementation mode
The present invention will be further described below with reference to the drawings.
Referring to as shown in Figure 1, present embodiment includes current detection module 1, overcurrent protection module 2, voltage sensor
Module 3, temperature sensing module 4, filtering and Signal-regulated kinase 5, logic control circuit 6, A D conversion 1, E O conversion 8, O E
Conversion 9, A D conversion 2 10, measure protection module 11, PC interfaces 12；The current detection module 1, overcurrent protection module 2 are mutual
Connection, and current detection module 1, overcurrent protection module 2 are connect with filtering and Signal-regulated kinase 5 respectively；The voltage sensor
Module 3, temperature sensing module 4 are connect with filtering and Signal-regulated kinase 5；The filtering and Signal-regulated kinase 5 and logic
Control circuit 6 connects；The filtering and Signal-regulated kinase 5 and A D convert 1 and connect；The A D conversion 1 with E O convert
8 connections；The A D conversions 1, E O conversions 8 respectively with A D conversions 2 10, O E conversions 9 connect；The O E conversion 9, A D
Convert 2 10 interconnection, and O E conversion 9, A D conversion 2 10 with measure protection module 11 connect；The measurement protection
Module 11 is connect with PC interfaces 12.
Wherein, the filtering and Signal-regulated kinase 5, logic control circuit 6 are connect with constant-current circuit respectively；The constant current
Circuit is connect with power supply；The E O conversion 8, O E conversion 9 between pass through optical fiber transmission data；The O E conversion 9, A D conversion
Be equipped in 2 10 with A D conversions 1, E 8 logic control circuits that connect of O conversions.
Present embodiment utilizes Faraday magnetooptical effect, when a branch of linearly polarized photon passes through the light that is placed in magnetic field
When fine or bulk crystals glass, if the direction of propagation of light is identical as magnetic direction, plane of polarization will rotate, and rotation angle is just
Than the line integral in magnetic field intensity along polarised light passage path.
Residual stress in present embodiment inside optical element generates the linear birefrigence varied with temperature, works as light
It learns glass and when optical fiber is vibrated and other machinery disturbance, is equivalent to introducing stress, equally causes linear birefrigence.
With the above structure, present embodiment has the beneficial effect that：A kind of electronics described in present embodiment
Formula mutual inductor measuring test system, reasonable design connect simply, conveniently, and the effect tested is good, convert simply, believe between each data
Number receive clear and definite, efficient, the good stability of detection, flexibility is good, present embodiment have it is simple in structure, setting
Rationally, the advantages that low manufacture cost.
The above is merely illustrative of the technical solution of the present invention and unrestricted, and those of ordinary skill in the art are to this hair
The other modifications or equivalent replacement that bright technical solution is made, as long as it does not depart from the spirit and scope of the technical scheme of the present invention,
It is intended to be within the scope of the claims of the invention.
Claims (5)
1. a kind of electronic transformer test system, it is characterised in that：It includes current detection module, overcurrent protection module, electricity
Press sensing module, temperature sensing module, filtering and Signal-regulated kinase, logic control circuit, A D conversions one, E O conversions, O E
Conversion, A D conversion two, measure protection module, PC interfaces；The current detection module, overcurrent protection module are connected with each other, and electricity
Stream detection module, overcurrent protection module are connect with filtering and Signal-regulated kinase respectively；The voltage sensor module, temperature sensing
Module is connect with filtering and Signal-regulated kinase；The filtering and Signal-regulated kinase are connect with logic control circuit；It is described
Filtering and Signal-regulated kinase and A D convert one and connect；The A D conversion one with E O conversion connect；The A D conversion one, E
O conversion respectively with A D conversion 2 10, O E conversion connect；The O E conversions, A D conversions two are connected with each other, and O E conversions, A
D conversions two are connect with measurement protection module；The measurement protection module is connect with PC interfaces.
2. a kind of electronic transformer test system according to claim 1, it is characterised in that：The filtering and signal tune
Reason module, logic control circuit are connect with constant-current circuit respectively；The constant-current circuit is connect with power supply.
3. a kind of electronic transformer test system according to claim 1, it is characterised in that：The E O conversion, O E
Pass through optical fiber transmission data between conversion.
4. a kind of electronic transformer test system according to claim 1, it is characterised in that：The O E conversion, A D
Conversion two in be equipped with A D conversion one, E O conversion connection logic control circuit.
5. a kind of electronic transformer test system according to claim 1, it is characterised in that：It utilizes Faraday magneto-optical
Effect, when a branch of linearly polarized photon is by the optical fiber or bulk crystals glass that are placed in magnetic field, if the direction of propagation of light
Identical as magnetic direction, plane of polarization will rotate, and rotation angle is proportional to magnetic field intensity and is accumulated along the line of polarised light passage path
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105341.9A CN108508395A (en) | 2017-02-26 | 2017-02-26 | A kind of electronic transformer test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105341.9A CN108508395A (en) | 2017-02-26 | 2017-02-26 | A kind of electronic transformer test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108508395A true CN108508395A (en) | 2018-09-07 |
Family
ID=63373581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105341.9A Withdrawn CN108508395A (en) | 2017-02-26 | 2017-02-26 | A kind of electronic transformer test system |
Country Status (1)
| Country | Link |
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| CN (1) | CN108508395A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201909810U (en) * | 2010-11-29 | 2011-07-27 | 浙江工业大学 | Optical fiber temperature compensator for electronic current transformer |
| CN103558571A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Calibration system of electronic transformer and merging unit |
| CN204241588U (en) * | 2014-11-11 | 2015-04-01 | 国家电网公司 | Current transformer operating state monitoring system |
| CN104569567A (en) * | 2014-12-29 | 2015-04-29 | 华北电力大学 | Self-adaptation compound feedback optical current transformer and method for determining current |
| CN104880686A (en) * | 2015-05-12 | 2015-09-02 | 贵州电力试验研究院 | Device and method for checking portable electronic current transformer |
| CN105259397A (en) * | 2015-11-16 | 2016-01-20 | 王爱玲 | Electronic voltage transformer |
| CN105842645A (en) * | 2016-06-06 | 2016-08-10 | 中国南方电网有限责任公司电网技术研究中心 | Electronic type transformer online monitoring device and monitoring method |
-
2017
- 2017-02-26 CN CN201710105341.9A patent/CN108508395A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201909810U (en) * | 2010-11-29 | 2011-07-27 | 浙江工业大学 | Optical fiber temperature compensator for electronic current transformer |
| CN103558571A (en) * | 2013-11-08 | 2014-02-05 | 国家电网公司 | Calibration system of electronic transformer and merging unit |
| CN204241588U (en) * | 2014-11-11 | 2015-04-01 | 国家电网公司 | Current transformer operating state monitoring system |
| CN104569567A (en) * | 2014-12-29 | 2015-04-29 | 华北电力大学 | Self-adaptation compound feedback optical current transformer and method for determining current |
| CN104880686A (en) * | 2015-05-12 | 2015-09-02 | 贵州电力试验研究院 | Device and method for checking portable electronic current transformer |
| CN105259397A (en) * | 2015-11-16 | 2016-01-20 | 王爱玲 | Electronic voltage transformer |
| CN105842645A (en) * | 2016-06-06 | 2016-08-10 | 中国南方电网有限责任公司电网技术研究中心 | Electronic type transformer online monitoring device and monitoring method |
Non-Patent Citations (3)
| Title |
|---|
| 李静: "电子式互感器中数据采集系统误差补偿的设计与实现", 《电子设计应用》 * |
| 钱政: "电子式光电组合互感器中数据采集系统的温度误差补偿", 《变压器》 * |
| 钱政等: "电子式互感器中数据采集系统的实现与误差补偿", 《高压电器》 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180907 |