CN202563014U - Transformer loss measurement control console - Google Patents
Transformer loss measurement control console Download PDFInfo
- Publication number
- CN202563014U CN202563014U CN2011205046906U CN201120504690U CN202563014U CN 202563014 U CN202563014 U CN 202563014U CN 2011205046906 U CN2011205046906 U CN 2011205046906U CN 201120504690 U CN201120504690 U CN 201120504690U CN 202563014 U CN202563014 U CN 202563014U
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- contactor
- transformer
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- test circuit
- load
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Abstract
The utility model discloses a transformer loss measurement control console which comprises a no-load and load loss test circuit, an induction voltage-withstanding test circuit and an output circuit. By sampling voltage and current of a voltage transformer and a current transformer in a circuit and monitoring sampling, no-load and load loss and an induction voltage-withstanding testing results of tested transformer can be measured. The transformer loss measurement control console can conveniently and quickly set up a transformer testing system, eliminates fussy opening and closing of cabinet groups, and can carry out 10 kilovolts (KV) and 35 KV transformer induction voltage-withstanding tests, measurement of no-load loss, no-load current, impedance voltage and load loss. At the same time, at the time of carrying out a large current load test, sampling errors of the voltage and the current is small, and accuracy of final obtained results is higher.
Description
Technical field
The utility model belongs to the electrical equipment field, relates in particular to the manual measurement control desk of transformer loss.
Background technology
At present existing transformer loss test macro; Being used for transformer loss measures; Be to utilize generator and excitation control cabinet, pressure regulator, current transformer and voltage transformer (VT),, carry out transformer loss with sensor sample voltage and current signal and calculate with PLC and the control of resistance state software integration.Along with the fast development of robotization control, much testing equipment all is integrated software control, and Microcomputer Calculation is accomplished.The laboratory technician only can carry out shirtsleeve operation, does not understand the ultimate principle of testing equipment and test.The utility model this patent be exactly for, when system controlled by computer breaks down, can instrumentation understand and the basic operation and the equipment ultimate principle of study transformer test by testing crew.Whether which equipment one bench teat check system needs form, and how to go to measure and judge the result that the measurement of controlling oneself is come out, accurate, the result that can not only rely on integrated testing equipment measurement to come out.Incorporate testing equipment of while, when carrying out low-voltage and high-current, measuring error can be very big, still need carry out electric current and voltage sampling result of calculation at transformer terminal voltage place.
Summary of the invention
The utility model purpose: in order to overcome the deficiency that exists in the prior art, the utility model provides a kind of transformer loss to measure control desk.
Technical scheme: for solving the problems of the technologies described above; The utility model adopts following technical scheme: control desk is measured in a kind of transformer loss; Comprise total contactor, unloaded load loss test circuit, induction voltage-withstand test circuit and output circuit; Said unloaded load loss test circuit is connected with pressure regulator by first contactor, first voltage transformer (VT), first current transformer successively, and said pressure regulator is regulated through first Motor Control; Said induction voltage-withstand test circuit is connected by second contactor, second voltage transformer (VT), second current transformer and second motor successively, thereby through the said second Motor Control generator test voltage is provided; Said output circuit is connected by the 3rd contactor, the 3rd current transformer and tertiary voltage mutual inductor successively, and is connected with three watts of tables between said the 3rd current transformer and the tertiary voltage mutual inductor; The input end of said unloaded load loss test circuit and the parallel connection of said induction voltage-withstand test circuit is connected with said total contactor, and said unloaded load loss test circuit is connected with said output circuit with the output terminal of said induction voltage-withstand test circuit parallel connection.
When needs carry out zero load and load test to tested transformer; The total contactor of adhesive, first contactor and the 3rd contactor; Load 380V, the alternating current of 50HZ is regulated pressure regulator through the rotating of first motor simultaneously; Said unloaded load loss test circuit work this moment; Thereby obtain the electric current and voltage sampling of first voltage transformer (VT) and first current transformer, and the sampling of the electric current and voltage of tertiary voltage mutual inductor and the 3rd current transformer, the loss the when data of these samplings are finally obtained tested no-load transformer and load through calculating; When needs are responded to voltage-withstand test to tested transformer; The total contactor of adhesive, second contactor and the 3rd contactor load 380V, the alternating current of 50HZ; This moment said induction voltage-withstand test circuit working; The voltage of generator output 200HZ is responded to voltage-withstand test to tested transformer in this process, meanwhile obtains the electric current and voltage sampling of second voltage transformer (VT) and second current transformer, and the sampling of the electric current and voltage of tertiary voltage mutual inductor and the 3rd current transformer; Through monitoring, thereby obtain the induction voltage-withstand test result of tested transformer to these samplings.First contactor and second contactor have interlock function, and making can only one of them contactor adhesive; Simultaneously the 4th contactor and the 5th contactor also have interlock function, and making can only one of them contactor adhesive, and said first contactor, second contactor and the 3rd contactor all have the overcurrent protection loop.
As preferably; Also be connected with behind the pressure regulator in the said unloaded load loss test circuit in the 4th contactor, the said induction voltage-withstand test circuit and also be connected with the 5th contactor behind the generator; Said first motor is opened through the 6th contactor and the control of the 7th contactor; Thereby can effectively control the work opening of unloaded load loss test circuit and induction voltage-withstand test circuit, can guarantee the safety of circuit simultaneously.
As preferably, said first current transformer and second current transformer are the two-phase current mutual inductors, and said the 3rd current transformer is a threephase current transformer.
As preferably; Said total contactor specification is 660V/1000A; The specification of said first contactor, second contactor, the 3rd contactor, the 4th contactor and the 5th contactor is 660V/400A, and the specification of said the 6th contactor and the 7th contactor is 660V/50A.
Beneficial effect: compared with prior art; The utlity model has following advantage: the convenient transformer test system of setting up fast; Saved the switch group of tired rope, can carry out 10KV and 35 KV transformer induction pressure tests, open circuit loss and no-load current measurement, impedance voltage and load loss and measure; When testing for large current load simultaneously, little to the error of electric current and voltage sampling, the degree of accuracy as a result that obtains at last is higher.
Description of drawings
Fig. 1 is the syndeton synoptic diagram of each ingredient of the utility model.
Wherein, total contactor 1, unloaded load loss test circuit 2, induction voltage-withstand test circuit 3, output circuit 4, first contactor 5, first voltage transformer (VT) 6, first current transformer 7, pressure regulator 8, first motor 9, second contactor 10, second voltage transformer (VT) 11, second current transformer 12, second motor 13, generator 14, the 3rd contactor 15, the 3rd current transformer 16, tertiary voltage mutual inductor 17, three watts of tables 18, the 4th contactor 19, the 5th contactor 20, the 6th contactor 21, the 7th contactor 22
Embodiment
Below in conjunction with accompanying drawing the utility model is done explanation further.
As shown in Figure 1; Control desk is measured in a kind of transformer loss; Thereby be connected successively with the 4th contactor 19 by first contactor 5, first voltage transformer (VT) 6, first current transformer 7, pressure regulator 8 and form unloaded load loss test circuit 2, thereby the adjusting of wherein said pressure regulator 8 realizes the load and the unloaded effect of the tested transformer of simulation through first motor, 9 controls that can rotating; Be connected successively with second motor 13 by second contactor 10, second voltage transformer (VT) 11, second current transformer 12 then; To generator 14 power is provided through said motor again; Thereby make generator 14 that test voltage is provided; After this generator 14, establish the 5th contactor 20 again, thereby constitute induction voltage-withstand test circuit 3; Output terminal after this zero load load loss test circuit 2 and 3 parallel connections of induction voltage-withstand test circuit; Be connected with output circuit 4 again; This output circuit 4 is connected with tertiary voltage mutual inductor 17 by the 3rd contactor 15, the 3rd current transformer 16, the 4th current transformer successively; And between the 4th current transformer and tertiary voltage mutual inductor 17, connect three watts of tables 18 and obtain the electric current and voltage sampling with this; Connect tested transformer at last again, also be connected with the 5th contactor 20 behind the generator 14 in the said in addition induction voltage-withstand test circuit 3, said first motor 9 is opened through the 6th contactor 21 and 22 controls of the 7th contactor.
When needs carry out zero load and load test to tested transformer; The total contactor of adhesive 1, first contactor 5 and the 3rd contactor 15; Load 380V, the alternating current of 50HZ, the rotating through first motor 9 simultaneously is to pressure regulator 8 voltage-regulation of going up and down; Said unloaded load loss test circuit 2 work this moment; Thereby obtain to be presented at the electric current and voltage sampling on first voltage transformer (VT) 6 and first current transformer, 7 instrument, and the sampling of the electric current and voltage of tertiary voltage mutual inductor 17 and the 3rd current transformer 16, the loss when the data process calculating of these samplings is finally obtained tested no-load transformer and load; When needs are responded to voltage-withstand test to tested transformer; The total contactor of adhesive 1, second contactor 10 and the 3rd contactor 15 load 380V, the alternating current of 50HZ; Said induction voltage-withstand test circuit 3 work this moment; The voltage of generator 14 output 200HZ is responded to voltage-withstand test to tested transformer in this process, meanwhile obtains the electric current and voltage sampling of second voltage transformer (VT) 11 and second current transformer 12, and the sampling of the electric current and voltage of tertiary voltage mutual inductor 17 and the 3rd current transformer 16; Through monitoring, thereby obtain the induction voltage-withstand test result of tested transformer to these samplings.
The above only is the preferred implementation of the utility model; Be noted that for those skilled in the art; Under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. control desk is measured in a transformer loss; It is characterized in that: comprise total contactor (1), unloaded load loss test circuit (2), induction voltage-withstand test circuit (3) and output circuit (4); Said unloaded load loss test circuit (2) is connected by first contactor (5), first voltage transformer (VT) (6), first current transformer (7) and pressure regulator (8) successively, and said pressure regulator (8) is through first motor (9) regulating and controlling; Said induction voltage-withstand test circuit (3) is connected by second contactor (10), second voltage transformer (VT) (11), second current transformer (12) and second motor (13) successively, thereby through said second motor (13) control generator (14) test voltage is provided; Said output circuit (4) is connected by the 3rd contactor (15), the 3rd current transformer (16) and tertiary voltage mutual inductor (17) successively, and is connected with three watts of tables (18) between said the 3rd current transformer (16) and the tertiary voltage mutual inductor (17); The input end of said unloaded load loss test circuit (2) and said induction voltage-withstand test circuit (3) parallel connection is connected with said total contactor (1), and said unloaded load loss test circuit (2) is connected with said output circuit (4) with the output terminal of said induction voltage-withstand test circuit (3) parallel connection.
2. control desk is measured in said transformer loss according to claim 1, it is characterized in that: also be connected with behind the pressure regulator (8) in the said unloaded load loss test circuit (2) in the 4th contactor (19), the said induction voltage-withstand test circuit (3) and also be connected with the 5th contactor (20) behind the generator (14); Said first motor (9) is opened through the 6th contactor (21) and the 7th contactor (22) control.
3. control desk is measured in said transformer loss according to claim 1, and it is characterized in that: said first current transformer (7) and second current transformer (12) are the two-phase current mutual inductors, and said the 3rd current transformer (16) is a threephase current transformer.
4. control desk is measured in said transformer loss according to claim 2; It is characterized in that: said total contactor (1) specification is 660V/1000A; The specification of said first contactor (5), second contactor (10), the 3rd contactor (15), the 4th contactor (19) and the 5th contactor (20) is 660V/400A, and the specification of said the 6th contactor (21) and the 7th contactor (22) is 660V/50A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205046906U CN202563014U (en) | 2011-12-07 | 2011-12-07 | Transformer loss measurement control console |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205046906U CN202563014U (en) | 2011-12-07 | 2011-12-07 | Transformer loss measurement control console |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202563014U true CN202563014U (en) | 2012-11-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205046906U Expired - Fee Related CN202563014U (en) | 2011-12-07 | 2011-12-07 | Transformer loss measurement control console |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202563014U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749504A (en) * | 2015-03-30 | 2015-07-01 | 西南交通大学 | Experiment method of dielectric response of frequency domain of traction transformer under loading condition |
| CN105004950A (en) * | 2015-07-03 | 2015-10-28 | 巢湖市金辉自控设备有限公司 | Detection method of low-frequency transformer |
| CN105807143A (en) * | 2016-05-30 | 2016-07-27 | 河北工业大学 | Method for precisely measuring stray loss of structural components of transformers |
| CN113552852A (en) * | 2021-06-16 | 2021-10-26 | 南方电网科学研究院有限责任公司 | Method and system for controlling no-load performance of transformer, computer equipment and storage medium |
-
2011
- 2011-12-07 CN CN2011205046906U patent/CN202563014U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749504A (en) * | 2015-03-30 | 2015-07-01 | 西南交通大学 | Experiment method of dielectric response of frequency domain of traction transformer under loading condition |
| CN104749504B (en) * | 2015-03-30 | 2017-07-11 | 西南交通大学 | The experimental method of tractive transformer frequency domain dielectric response under loading condition |
| CN105004950A (en) * | 2015-07-03 | 2015-10-28 | 巢湖市金辉自控设备有限公司 | Detection method of low-frequency transformer |
| CN105807143A (en) * | 2016-05-30 | 2016-07-27 | 河北工业大学 | Method for precisely measuring stray loss of structural components of transformers |
| CN113552852A (en) * | 2021-06-16 | 2021-10-26 | 南方电网科学研究院有限责任公司 | Method and system for controlling no-load performance of transformer, computer equipment and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |