CN103943010A - Fault simulation transformer - Google Patents
Fault simulation transformer Download PDFInfo
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- CN103943010A CN103943010A CN201410154598.XA CN201410154598A CN103943010A CN 103943010 A CN103943010 A CN 103943010A CN 201410154598 A CN201410154598 A CN 201410154598A CN 103943010 A CN103943010 A CN 103943010A
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Abstract
The invention relates to a fault simulation transformer applied to teaching of professional skill training of electrical tests. As for transformer improvement carried out according to a direct-current resistance interphase imbalance fault and an insulation resistance disqualification fault of the transformer, all phases of the low-voltage side of the transformer are connected with a resistor R1, a resistor R2 and a resistor R3 respectively in parallel; all phases of the head end of the high-voltage side of the transformer are connected with a resistor set RA, a resistor set RB and a resistor set RC respectively in series; a resistor R<variable> is connected between the phase A of the high-voltage side of the transformer and the phase a of the low-voltage side of the transformer; the phase C of the high-voltage side of the transformer is connected with a resistor set RC1, and the phase a of the low-voltage side of the transformer is connected with a resistor set Ra. Thus, the ability of a student to analyze, judge and handle the faults is trained. Direct-current resistance and insulation resistance are changed in the mode that a winding is connected with the resistors in series and in parallel, and therefore the fault automatic-setting function is achieved.
Description
Technical field
The present invention relates to a kind of simulated failure power equipment, relate in particular to a kind of simulated failure transformer, be suitable for electric power skills training.
Background technology
When the training of electrical test professional skill, test test specimen is the electrical equipment of brand-new or single failure often, test figure meets code regulation completely, is difficult to carry out setting and the change of fault, seriously restricts the ability of analysis, judgement and the processing of trainee to fault.Therefore, skills training is in the urgent need to a kind of electrical equipment of establishing fault, carrys out the ability of trainee's fault analysis and judgement with this.Transformer is as a kind of electric system common equipment, and trainee analyzes and judges that transformer fault is particularly important, but at present can be fewer for the failure transformer of training, and fault is single, can not meet training needs.
Summary of the invention
The present invention is directed to above-mentioned problems of the prior art, around the alternate imbalance fault of direct current resistance of transformer and the defective fault of insulation resistance and carried out transformer transformation, a kind of simulated failure transformer is provided, solve in prior art fault single, can not meet the problem of training needs.
Technical scheme of the present invention is as follows:
Comprise transformer, step down side every respectively parallel resistance R1, resistance R 2 and resistance R 3 mutually; Head end every series connection one group of resistance R A, resistance R B and the resistance R C of high voltage side of transformer; Contact resistance R between high voltage side of transformer A phase and step down side a phase
become; High voltage side of transformer C phase and step down side a are connected with respectively one group of resistance R C1 and resistance R a mutually.
The resistance value of described resistance R 1, resistance R 2 and resistance R 3 is respectively 0.69 Ω, 1.01 Ω and 0.41 Ω resistance.
Described resistance R A is composed in parallel by resistance R 4 and resistance R 5; The resistance value of resistance R 4 and resistance R 5 is 0.24 Ω.
Described resistance R B is composed in parallel by resistance R 6 and resistance R 7; The resistance value of resistance R 6 and resistance R 7 is 0.4 Ω.
Described resistance R C is composed in parallel by resistance R 8 and resistance R 9; The resistance value of resistance R 8 and resistance R 9 is 0.3 Ω.
Described resistance R
becomecomposed in parallel by resistance R 13 and resistance R 14; The resistance value of resistance R 13 and resistance R 14 is 400M Ω.
Described resistance R C1 is composed in parallel by resistance R 15 and resistance R 16; The resistance value of resistance R 15 and resistance R 16 is 1000M Ω.
Described resistance R a is composed in parallel by resistance R 11 and resistance R 12; The resistance value of resistance R 11 and resistance R 12 is 20M Ω.
Described resistance R 1, resistance R 2, resistance R 3, resistance R A, resistance R B, resistance R C, resistance R
become, resistance R C1 and resistance R a be connected with respectively switch separately.
Advantageous effect of the present invention is as follows:
1, the transformer fault of the various needs such as direct current resistance fault and insulation resistance fault can be set according to training requirement, be convenient to student's visual learning; Greatly improve the ability of high Staff of Employees analysis, failure judgement; In the examination process of Technique Authentication and Staff of Employees, play a significant role.
2, through the transformer resistance value of multiple authentication design, more realistic teaching needs, and is applicable to indoor instruction training, strengthens fault from establishing function.
Brief description of the drawings
Fig. 1 is structural principle schematic diagram of the present invention.
Fig. 2 is the structural principle schematic diagram of direct current resistance fault low-pressure side of the present invention.
Fig. 3 is the on high-tension side structural principle schematic diagram of direct current resistance fault of the present invention.
Fig. 4 is the structural principle schematic diagram of insulation resistance fault of the present invention.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe concrete structure of the present invention in detail.
Embodiment
As Figure 1-4, comprise transformer, step down side every respectively parallel resistance R1, resistance R 2 and resistance R 3 mutually; Head end every series connection one group of resistance R A, resistance R B and the resistance R C of high voltage side of transformer; Contact resistance R between high voltage side of transformer A phase and step down side a phase
become; High voltage side of transformer C phase and step down side a are connected with respectively one group of resistance R C1 and resistance R a mutually.
The resistance value of described resistance R 1, resistance R 2 and resistance R 3 is respectively 0.69 Ω, 1.01 Ω and 0.41 Ω resistance.
Described resistance R A is composed in parallel by resistance R 4 and resistance R 5; The resistance value of resistance R 4 and resistance R 5 is 0.24 Ω.
Described resistance R B is composed in parallel by resistance R 6 and resistance R 7; The resistance value of resistance R 6 and resistance R 7 is 0.4 Ω.
Described resistance R C is composed in parallel by resistance R 8 and resistance R 9; The resistance value of resistance R 8 and resistance R 9 is 0.3 Ω.
Described resistance R
becomecomposed in parallel by resistance R 13 and resistance R 14; The resistance value of resistance R 13 and resistance R 14 is 400M Ω.
Described resistance R C1 is composed in parallel by resistance R 15 and resistance R 16; The resistance value of resistance R 15 and resistance R 16 is 1000M Ω.
Described resistance R a is composed in parallel by resistance R 11 and resistance R 12; The resistance value of resistance R 11 and resistance R 12 is 20M Ω.
Described resistance R 1, resistance R 2, resistance R 3, resistance R A, resistance R B, resistance R C, resistance R
become, resistance R C1 and resistance R a be connected with respectively switch separately.
By above-mentioned setting, both can realize every distinguish mutually 0.69 Ω in parallel, 1.01 Ω, 0.41 Ω resistance at step down side; Realize series connection 0.12 Ω, 0.2 Ω, 0.15 Ω resistance on high-tension side head end; Realize and be connected one group of variable contact resistance 10M Ω, 200M Ω, 500M Ω with low pressure head end at high pressure head end.
Claims (9)
1. simulated failure transformer, comprises transformer, it is characterized in that step down side every respectively parallel resistance R1, resistance R 2 and resistance R 3 mutually; Head end every series connection one group of resistance R A, resistance R B and the resistance R C of high voltage side of transformer; Contact resistance R between high voltage side of transformer A phase and step down side a phase
become; High voltage side of transformer C phase and step down side a are connected with respectively one group of resistance R C1 and resistance R a mutually.
2. simulated failure transformer according to claim 1, is characterized in that the resistance value of described resistance R 1, resistance R 2 and resistance R 3 is respectively 0.69 Ω, 1.01 Ω and 0.41 Ω resistance.
3. simulated failure transformer according to claim 1, is characterized in that described resistance R A is composed in parallel by resistance R 4 and resistance R 5; The resistance value of resistance R 4 and resistance R 5 is 0.24 Ω.
4. simulated failure transformer according to claim 1, is characterized in that described resistance R B is composed in parallel by resistance R 6 and resistance R 7; The resistance value of resistance R 6 and resistance R 7 is 0.4 Ω.
5. simulated failure transformer according to claim 1, is characterized in that described resistance R C is composed in parallel by resistance R 8 and resistance R 9; The resistance value of resistance R 8 and resistance R 9 is 0.3 Ω.
6. simulated failure transformer according to claim 1, is characterized in that described resistance R
becomecomposed in parallel by resistance R 13 and resistance R 14; The resistance value of resistance R 13 and resistance R 14 is 400M Ω.
7. simulated failure transformer according to claim 1, is characterized in that described resistance R C1 is composed in parallel by resistance R 15 and resistance R 16; The resistance value of resistance R 15 and resistance R 16 is 1000M Ω.
8. simulated failure transformer according to claim 1, is characterized in that described resistance R a is composed in parallel by resistance R 11 and resistance R 12; The resistance value of resistance R 11 and resistance R 12 is 20M Ω.
9. simulated failure transformer according to claim 1, is characterized in that described resistance R 1, resistance R 2, resistance R 3, resistance R A, resistance R B, resistance R C, resistance R
become, resistance R C1 and resistance R a be connected with respectively switch separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154598.XA CN103943010A (en) | 2014-04-17 | 2014-04-17 | Fault simulation transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410154598.XA CN103943010A (en) | 2014-04-17 | 2014-04-17 | Fault simulation transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103943010A true CN103943010A (en) | 2014-07-23 |
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ID=51190653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410154598.XA Pending CN103943010A (en) | 2014-04-17 | 2014-04-17 | Fault simulation transformer |
Country Status (1)
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| CN (1) | CN103943010A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771782A (en) * | 2017-02-10 | 2017-05-31 | 国家电网公司 | A kind of experimental rig and method for simulating distinct device insulaion resistance and absorption process |
| CN107527528A (en) * | 2017-10-09 | 2017-12-29 | 贵州电网有限责任公司 | The high-pressure side winding characteristic failures simulator and its emulation mode of a kind of transformer |
| CN107527529A (en) * | 2017-10-09 | 2017-12-29 | 贵州电网有限责任公司 | The low-pressure side winding characteristic failures simulator and its emulation mode of a kind of transformer |
| CN107591072A (en) * | 2017-10-09 | 2018-01-16 | 贵州电网有限责任公司 | A kind of Synthesized Diagnosis On Transformer Faults simulator and its emulation mode |
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| CN201465382U (en) * | 2009-05-15 | 2010-05-12 | 郑州万特电气有限公司 | High-voltage electrical energy metering training device |
| CN102855795A (en) * | 2012-09-18 | 2013-01-02 | 武汉特试特科技股份有限公司 | Electrical test equipment simulation device |
| CN203339644U (en) * | 2013-06-25 | 2013-12-11 | 国家电网公司 | Signal transmission device used among high-low voltage equipment of fault current limiter |
| CN203799545U (en) * | 2014-04-17 | 2014-08-27 | 国家电网公司 | Simulation fault transformer |
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2014
- 2014-04-17 CN CN201410154598.XA patent/CN103943010A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465382U (en) * | 2009-05-15 | 2010-05-12 | 郑州万特电气有限公司 | High-voltage electrical energy metering training device |
| CN102855795A (en) * | 2012-09-18 | 2013-01-02 | 武汉特试特科技股份有限公司 | Electrical test equipment simulation device |
| CN203339644U (en) * | 2013-06-25 | 2013-12-11 | 国家电网公司 | Signal transmission device used among high-low voltage equipment of fault current limiter |
| CN203799545U (en) * | 2014-04-17 | 2014-08-27 | 国家电网公司 | Simulation fault transformer |
Non-Patent Citations (1)
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| 王伟等: "模拟故障培训变压器在电气试验培训中的研究", 《中国电力教育》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771782A (en) * | 2017-02-10 | 2017-05-31 | 国家电网公司 | A kind of experimental rig and method for simulating distinct device insulaion resistance and absorption process |
| CN106771782B (en) * | 2017-02-10 | 2024-03-22 | 国家电网公司 | Test device and method capable of simulating insulation resistance and absorption process of different equipment |
| CN107527528A (en) * | 2017-10-09 | 2017-12-29 | 贵州电网有限责任公司 | The high-pressure side winding characteristic failures simulator and its emulation mode of a kind of transformer |
| CN107527529A (en) * | 2017-10-09 | 2017-12-29 | 贵州电网有限责任公司 | The low-pressure side winding characteristic failures simulator and its emulation mode of a kind of transformer |
| CN107591072A (en) * | 2017-10-09 | 2018-01-16 | 贵州电网有限责任公司 | A kind of Synthesized Diagnosis On Transformer Faults simulator and its emulation mode |
| CN107527528B (en) * | 2017-10-09 | 2023-08-15 | 贵州电网有限责任公司 | High-voltage side winding characteristic fault simulation device and simulation method of transformer |
| CN107527529B (en) * | 2017-10-09 | 2023-08-22 | 贵州电网有限责任公司 | Low-voltage side winding characteristic fault simulation device and simulation method of transformer |
| CN107591072B (en) * | 2017-10-09 | 2023-08-25 | 贵州电网有限责任公司 | Transformer comprehensive fault diagnosis simulation device and simulation method thereof |
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Application publication date: 20140723 |
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| RJ01 | Rejection of invention patent application after publication |