CN203799545U - Simulation fault transformer - Google Patents
Simulation fault transformer Download PDFInfo
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- CN203799545U CN203799545U CN201420187250.6U CN201420187250U CN203799545U CN 203799545 U CN203799545 U CN 203799545U CN 201420187250 U CN201420187250 U CN 201420187250U CN 203799545 U CN203799545 U CN 203799545U
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- Prior art keywords
- resistance
- transformer
- resistor
- voltage side
- fault
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- Expired - Lifetime
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- 238000004088 simulation Methods 0.000 title abstract 2
- 238000012549 training Methods 0.000 abstract description 9
- 238000009413 insulation Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000016507 interphase Effects 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000031836 visual learning Effects 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The utility model relates to a simulation fault transformer which is applied to electrical test professional skill training teaching. According to the utility model, transformer transformation is carried out for an interphase imbalance fault of a direct current resistor and an unqualified fault of an insulation resistor of a transformer; each phase of the low voltage side of the transformer is respectively connected in parallel with a resistor R1, a resistor R2 and a resistor R3; each phase of the first end of the high voltage side of the transformer is connected in series with a group of resistor RA, resistor RB and resistor RC; a resistor R change is connected between an A phase of the high voltage side of the transformer and an a phase of the low voltage side of the transformer; a C phase of the high voltage side of the transformer and the a phase of the low voltage side of the transformer are respectively connected with a group of resistor RC1 and resistor Ra. The abilities of fault analyzing, judging and processing of a student are trained. The direct current resistor and the insulation resistor are changed in the manner of resistor series and parallel connection of a winding, so as to realize the function fault self-setting.
Description
Technical field
The utility model relates to a kind of simulated failure power equipment, relates in particular to a kind of simulated failure transformer, is suitable for electric power skills training.
Background technology
During the training of electrical test professional skill, test test specimen is the electrical equipment of brand-new or single failure often, test figure meets rules regulation completely, is difficult to carry out setting and the change of fault, seriously restricts the ability of trainee to the analysis of fault, judgement and processing.Therefore, skills training, 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 it is particularly important that trainee analyzes judgement transformer fault, but at present can be fewer for the failure transformer of training, and fault is single, can not meet training needs.
Utility model content
The utility model is for 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.
The technical solution of the utility model 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; High voltage side of transformer A phase and step down side a mutually between contact resistance R
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
becomeby resistance R 13 and resistance R 14, composed in parallel; 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.
The utility model has the advantages of as follows:
1, can the transformer fault of the various needs such as direct current resistance fault and insulation resistance fault be set according to training requirement, be convenient to student's visual learning; Greatly improved 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.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
Fig. 2 is the structural principle schematic diagram of the utility model direct current resistance fault low-pressure side.
Fig. 3 is the on high-tension side structural principle schematic diagram of the utility model direct current resistance fault.
Fig. 4 is the structural principle schematic diagram of the utility model insulation resistance fault.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, describe concrete structure of the present utility model 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; High voltage side of transformer A phase and step down side a mutually between contact resistance R
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
becomeby resistance R 13 and resistance R 14, composed in parallel; 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 at step down side, can realize every distinguish mutually 0.69 Ω in parallel, 1.01 Ω, 0.41 Ω resistance; At on high-tension side head end, realize series connection 0.12 Ω, 0.2 Ω, 0.15 Ω resistance; At high pressure head end, realize and be connected one group of variable contact resistance 10M Ω, 200M Ω, 500M Ω with low 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; High voltage side of transformer A phase and step down side a mutually between contact resistance R
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
becomeby resistance R 13 and resistance R 14, composed in parallel; 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 |
|---|---|---|---|
| CN201420187250.6U CN203799545U (en) | 2014-04-17 | 2014-04-17 | Simulation fault transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420187250.6U CN203799545U (en) | 2014-04-17 | 2014-04-17 | Simulation fault transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799545U true CN203799545U (en) | 2014-08-27 |
Family
ID=51381742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420187250.6U Expired - Lifetime CN203799545U (en) | 2014-04-17 | 2014-04-17 | Simulation fault transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799545U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943010A (en) * | 2014-04-17 | 2014-07-23 | 国家电网公司 | Fault simulation transformer |
| CN108414879A (en) * | 2018-04-02 | 2018-08-17 | 西南交通大学 | Short-circuit analog platform and assessment method between Wound iron-core transformer lamination |
-
2014
- 2014-04-17 CN CN201420187250.6U patent/CN203799545U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103943010A (en) * | 2014-04-17 | 2014-07-23 | 国家电网公司 | Fault simulation transformer |
| CN108414879A (en) * | 2018-04-02 | 2018-08-17 | 西南交通大学 | Short-circuit analog platform and assessment method between Wound iron-core transformer lamination |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |
|
| CX01 | Expiry of patent term |