CN109782211A - A kind of transformer secondary circuit fault simulation platform - Google Patents
A kind of transformer secondary circuit fault simulation platform Download PDFInfo
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- CN109782211A CN109782211A CN201811573960.1A CN201811573960A CN109782211A CN 109782211 A CN109782211 A CN 109782211A CN 201811573960 A CN201811573960 A CN 201811573960A CN 109782211 A CN109782211 A CN 109782211A
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- secondary circuit
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- fault simulation
- transformer
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- 238000004088 simulation Methods 0.000 title claims abstract description 27
- 230000008878 coupling Effects 0.000 claims abstract description 4
- 238000010168 coupling process Methods 0.000 claims abstract description 4
- 238000005859 coupling reaction Methods 0.000 claims abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000029305 taxis Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The present invention provides a kind of transformer secondary circuit fault simulation platforms, comprising: three-phase standard source, for providing the first electric current；Device is flowed up, for first electric current to be risen to the second electric current, the up-flow device is electromagnetic coupling formula, and first siding ring is multiturn, and second siding ring is single turn；Current transformer group, for second electric current to be selectively adjusted to third electric current, the current transformer group is polytropic ratio mutual inductor；State simulation unit, for simulating normal connection, open circuit, terminal short circuit, concatenation rectifying device and the bypass condition of secondary circuit；The current output terminal of the current transformer group is connect by the state simulation unit with the secondary circuit logging to be measured.Transformer secondary circuit fault simulation platform provided by the invention can do comprehensive inspection to the types of functionality of different parameters mutual inductor, secondary circuit logging.
Description
Technical field
The present invention relates to secondary circuit logging technical field, especially a kind of transformer secondary circuit fault simulation is flat
Platform.
Background technique
The annual whole nation leads to indirect loss caused by accident because of stealing then more because stealing loses more than 200 hundred million yuan of the electricity charge
It is huge.From the point of view of the data obtained from internet, Hunan Province is more than every year 200000000 kilowatt hours by power-steeling quantity in recent years, is equivalent to one
The Urban Annual Electrical Power Consumption amount in medium-scale county.More than 600,000,000 kilowatt hours are up to by power-steeling quantity in Anhui Province 2000 to 2005, are sold by the whole province
Electric average price measuring and calculating, Anhui Power Grid enterprise collect charges for electricity 2.5 hundred million yuan less, and country collects taxes nearly 50,000,000 yuan less.Hubei Province 2007 is complete
Year is up to 3.4 hundred million kilowatt hours by power-steeling quantity, and wherein every year by nearly 200,000,000 kilowatt hour of power-steeling quantity, direct economic loss is more than one hundred million for Wuhan City
Member.Annual the whole province, Henan Province because caused by stealing electric quantity loss be equivalent to two medium 1 year electricity consumptions in county up to 300,000,000 kilowatt hours,
Direct economic loss is up to 1.5 hundred million yuan.By power-steeling quantity 2001 2.0 hundred million kilowatt hours, having gone up by 2006 was 3.2 for Beijing area
Hundred million kilowatt hours only just rise 60% in 6 years.Stealing crime means develop towards directions such as hiddenization, high-technicalizations at present, remove
Plain edition stealing gimmick takes private draw disorderly to connect, without the means such as table electricity consumption stealing and more original around table stealing, privately open
It opens outside the stealing electricity methods such as electric energy meter measurement seal, the higher novel electricity filching means of many technology contents, such as installing remote occurs
Device is shorted CT secondary circuit, changes CT no-load voltage ratio, replaces mutual inductor, changes nameplate etc..It is inverse that Geng You enterprise purchases power rectifier
Become device, makes current transformer error increase to achieve the purpose that its stealing using the DC component in route.In face of such
Serious electricity stealing, State Grid Corporation of China, which opposed electricity-stealing, in recent years does a lot of work, and secondary circuit logging is exactly a kind of tool
The equipment that preparation shows a variety of stealing modes.
The fault simulation mode of secondary circuit logging, which is constantly in, at present individually builds platform model, and cannot simulate complete
Electricity filching means under operating condition.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of transformer secondary circuit fault simulation platforms, can be to different ginsengs
Count mutual inductor, the types of functionality of secondary circuit logging does comprehensive inspection.
The present invention provides a kind of transformer secondary circuit fault simulation platforms, comprising:
Three-phase standard source, for providing the first electric current；
Device is flowed up, for first electric current to be risen to the second electric current, the up-flow device is electromagnetic coupling formula, primary side
Coil is multiturn, and second siding ring is single turn；
Current transformer group, for second electric current to be selectively adjusted to third electric current, the current transformer group is
Polytropic ratio mutual inductor；
State simulation unit, for simulating the normal connection of secondary circuit, open circuit, terminal are shorted, concatenation rectifying device and primary
Bypass condition；
The current output terminal of the current transformer group passes through the state simulation unit and the secondary circuit logging to be measured
Connection.
Further, there are five no-load voltage ratios, respectively 100:5,250:5,500:5,1000:5 for the current transformer group tool
And 1500:5.
Further, the first siding ring of the up-flow device is 5 circles, and second siding ring is 1 circle.
Transformer secondary circuit fault simulation platform provided by the invention can patrol different parameters mutual inductor, secondary circuit
The types of functionality of inspection instrument does comprehensive inspection.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transformer secondary circuit fault simulation platform of the present invention；
Fig. 2 is the circuit diagram of transformer secondary circuit fault simulation platform of the present invention.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It more fully understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
A kind of transformer secondary circuit fault simulation platform, as depicted in figs. 1 and 2, comprising:
Three-phase standard source, for providing the first electric current, when carrying out loop state simulation, for single epitope threephase current transformer
Load, need when three-phase standard source capacity is not less than 0.5kVA, design according to the reasonable quantity dilatation of epitope；
Device is flowed up, for first electric current to be risen to the second electric current, in the design of mutual inductor group, by ampere-turns such as using
Mode, realizes the fan-out capability of secondary maximum 1.2 times of rated current, in design, it is desirable that can at least meet the requirement of 100A, therefore
If the mode combined using three-phase standard source with up-flow device may be selected in the stage body being limited in volume, output electric current, up-flow are promoted
Device selects electromagnetic coupling mode, a multiturn, secondary single turn, (step-down transformer that can be understood as secondary short circuit)；
Current transformer group, for second electric current to be selectively adjusted to third electric current, the current transformer group is
Polytropic ratio mutual inductor needs to provide 100 for the input of every phase current in the loop state detection function test for carrying out logging:
5, the mutual inductor of this five kinds of no-load voltage ratios of 250:5,500:5,1000:5 and 1500:5 carry out under different electric currents it is normal connection, open circuit,
Second short circuit, primary bypass and the test for concatenating rectifying device can not be mentioned by the limit value in stage body space and volume for every phase
For five independent current transformers, the form of polytropic ratio mutual inductor will be used to provide the mutual inductance of five kinds of no-load voltage ratios for every phase in design
Device, every phase can be used two variable specific current transformers and simulated, and be respectively: 100:5 and 250:5,500:5,1000:5 and
1500:5, if the current transformer between different epitopes uses the same electric current of current source to export, once bypassed,
When second open circuit, the input of electric current between different epitopes should be cut off, otherwise can have interference between different epitopes, influence measurement result；
State simulation unit, for simulating the normal connection of secondary circuit, open circuit, terminal are shorted, concatenation rectifying device and primary
Bypass condition, in Fig. 2, normally opened relay K1 is shorted state for simulating terminal, and normally closed relay K2 is for analog loopback open circuit；
Normally closed relay K3 concatenates semiconductor for analog loopback, and the CT that relay K4, K5, K6, K7, K8 are used to control access circuit becomes
Than relay K9 is once bypassed for controlling primary current input, relay K10 and K10 ' for simulating CT, and two relays need
It controls while being attracted, the item that analogue unit needs to pay attention to: when carrying out second open circuit simulation, power input need to be disconnected, i.e., it is disconnected
Open relay K9 need to disconnect power input when carrying out the normal connecting test under 0A current condition, i.e. disconnection relay K9,
When carrying out primary bypass simulation, power input need to be disconnected, i.e. disconnection relay K9；Mutual inductor group must not share between different epitopes
One primary current input line, when carrying out terminal short circuit, detection current value should be at current measurement point 2, and electric current meets at this
The value of setting requirements, when carrying out concatenation rectifier equipment state simulation, detection current value should be at current measurement point 1, at this
Electric current according to turn ratio convert to it is secondary when, meet the value of setting requirements；The CT of two different no-load voltage ratios must not be connect simultaneously
Enter in the same circuit.
The current output terminal of the current transformer group is patrolled by the state simulation unit and the secondary circuit to be measured
Examine instrument connection.
The scope of protection of the present invention is not limited to this.Those skilled in the art are made equivalent on the basis of the present invention
Substitution or transformation, it is within the scope of the present invention.Protection scope of the present invention is subject to claims.
Claims (3)
1. a kind of transformer secondary circuit fault simulation platform characterized by comprising
Three-phase standard source, for providing the first electric current；
Device is flowed up, for first electric current to be risen to the second electric current, the up-flow device is electromagnetic coupling formula, primary side
Coil is multiturn, and second siding ring is single turn；
Current transformer group, for second electric current to be selectively adjusted to third electric current, the current transformer group is
Polytropic ratio mutual inductor；
State simulation unit, for simulating the normal connection of secondary circuit, open circuit, terminal are shorted, concatenation rectifying device and primary
Bypass condition；
The current output terminal of the current transformer group passes through the state simulation unit and the secondary circuit logging to be measured
Connection.
2. transformer secondary circuit fault simulation platform as described in claim 1, which is characterized in that the current transformer group
There are five no-load voltage ratios, respectively 100:5,250:5,500:5,1000:5 and 1500:5 for tool.
3. transformer secondary circuit fault simulation platform as described in claim 1, which is characterized in that the one of the up-flow device
Secondary lateral coil is 5 circles, and second siding ring is 1 circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573960.1A CN109782211A (en) | 2018-12-21 | 2018-12-21 | A kind of transformer secondary circuit fault simulation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573960.1A CN109782211A (en) | 2018-12-21 | 2018-12-21 | A kind of transformer secondary circuit fault simulation platform |
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| Publication Number | Publication Date |
|---|---|
| CN109782211A true CN109782211A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573960.1A Pending CN109782211A (en) | 2018-12-21 | 2018-12-21 | A kind of transformer secondary circuit fault simulation platform |
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| CN (1) | CN109782211A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526443A (en) * | 2020-12-02 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Testing device with error self-detection function for electric energy meter |
| CN114089252A (en) * | 2021-10-25 | 2022-02-25 | 青岛鼎信通讯股份有限公司 | Loop inspection calibrating device for energy controller |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837852A (en) * | 2013-09-23 | 2014-06-04 | 国家电网公司 | All-fiber electronic current transformer frequency characteristic testing device and testing method |
| CN106199306A (en) * | 2016-07-01 | 2016-12-07 | 中国电力科学研究院 | A kind of system and method for loop state monitoring device is tested |
| CN205880191U (en) * | 2016-07-19 | 2017-01-11 | 中国电力科学研究院 | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects |
| CN206057544U (en) * | 2016-07-01 | 2017-03-29 | 国家电网公司 | A kind of assay device for the test of CT loop state loggings global function |
-
2018
- 2018-12-21 CN CN201811573960.1A patent/CN109782211A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103837852A (en) * | 2013-09-23 | 2014-06-04 | 国家电网公司 | All-fiber electronic current transformer frequency characteristic testing device and testing method |
| CN106199306A (en) * | 2016-07-01 | 2016-12-07 | 中国电力科学研究院 | A kind of system and method for loop state monitoring device is tested |
| CN206057544U (en) * | 2016-07-01 | 2017-03-29 | 国家电网公司 | A kind of assay device for the test of CT loop state loggings global function |
| CN205880191U (en) * | 2016-07-19 | 2017-01-11 | 中国电力科学研究院 | A isolated plant for being directed at electric energy meter that possesses CT secondary circuit state monitor function carries out global function and detects |
Non-Patent Citations (1)
| Title |
|---|
| 龚炳铮: "《机电一体化技术应用实例》", 31 May 1994, 机械工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112526443A (en) * | 2020-12-02 | 2021-03-19 | 云南电网有限责任公司电力科学研究院 | Testing device with error self-detection function for electric energy meter |
| CN114089252A (en) * | 2021-10-25 | 2022-02-25 | 青岛鼎信通讯股份有限公司 | Loop inspection calibrating device for energy controller |
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Application publication date: 20190521 |