CN2620907Y - Transformer no-load, short-circuit training device - Google Patents
Transformer no-load, short-circuit training device Download PDFInfo
- Publication number
- CN2620907Y CN2620907Y CN 03232835 CN03232835U CN2620907Y CN 2620907 Y CN2620907 Y CN 2620907Y CN 03232835 CN03232835 CN 03232835 CN 03232835 U CN03232835 U CN 03232835U CN 2620907 Y CN2620907 Y CN 2620907Y
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- components
- transformer
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Abstract
The utility model relates to a no-load, short circuit training device for transformers, belonging to a teaching demonstration mould, which includes a wiring connection mounting board (1), a voltage regulator T and components, testing meters and a trunking board (2) arranged on the wiring connection mounting board. All the components and the testing meters are arranged on the wiring connection board according to the control circuit wiring connection rules. All the components and the testing meters arranged on the wiring connection board are arranged with an automatic air switch QF, fuses FU, current transformers TA, control transformers BK, contactors KM, a connection terminal board XT, voltmeters V, current meters A, wattmeters W, indicator lights EL, and push-button switches SB. All the components, the testing meters and the electrical motor M are electrically connected according to the transformer no-load/circuit control circuit. All the components, the testing meters and the indicator lights of the utility model are simple, clear, and standard in arrangement, and convenient for standard, intuitive teaching and demo operation.
Description
Technical field
The utility model belongs to the teaching mould technical field, in particular for the device of power control line Lu Shizuo skill training and examination, evaluation.
Background technology
In the Electric Traction teaching of school especially skilled workers school, relate to the teaching and the wiring training of no-load transformer and short circuit operation circuit content, except allowing the student grasp theoretically the ABC of operation circuit, it more is the mode of connection that will allow the student from practical operation, be familiar with the principle of work of operation circuit intuitively and expertly grasp operation circuit, whether in the examination of electrician specialty workman's vocational skills and identifying, it is correct also to need the operation circuit that the device of a cover standard checks the examination personnel of institute to run in.Yet, in existing school instruction, be mostly that making some coarse, simple and crude operation circuit trainers by teacher oneself according to the needs of teaching starts to learn for the student.These Electrical Engineering Practice trainers normally teacher are made according to own understanding and teaching needs to teaching material, and randomness is bigger, and standardization is relatively poor, do not possess versatility yet, the practical operation knowledge standard that causes the student to acquire differs, and level is uneven, being poor in basic training of grasp; Simultaneously, do not have unified and standard teaching and training device, brought certain inconvenience yet to teachers ' teaching.In addition, in existing electrician's vocational skills examination and identifying, that adopt or traditional checks the operation circuit wiring correctness that the examination personnel of institute are run in one by one by the chief examiner teacher, still the device that does not have the cover examination check workman practical operation level that relatively standard is perfect, cause disunity, the factor and individual subjective factor of appraisal standards big easily, the accuracy and the fairness of influence examination qualification result.
Summary of the invention
The purpose of this utility model provides a kind of course of work that can demonstrate no-load transformer and short circuit intuitively of unifying standard in order to overcome above-mentioned the deficiencies in the prior art just, can also be used for the mode of connection of student's hands-on operation circuit and operation steps, and can be used to examine no-load transformer, the short circuit trainer of identifying student's practical operation level.
The purpose of this utility model is achieved by the following technical solution.
This no-load transformer, the short circuit trainer includes the wiring installing plate, pressure regulator T and the components and parts that are arranged on the wiring installing plate, test instrumentation and wire casing plate, each components and parts and test instrumentation are arranged regularly by operation circuit wiring rule on the wiring installing plate, set components and parts and test instrumentation have automatic air-break switch QF, fuse FU, current transformer TA, control transformer BK, contactor KM, terminal board XT, voltage table V, reometer A, power meter W, pilot lamp EL and pushbutton switch SB, each components and parts, operation circuit by no-load transformer or short circuit between test instrumentation and the pressure regulator is electrically connected.
The position distribution of each components and parts on the wiring installing plate is divided into left and right two big zones, and left area first row is provided with arranges automatic air-break switch QF, three-phase fuse FU
1, single-phase fuse FU
2, first current transformer TA
1With first control transformer BK
1, second row is provided with two contactor KM
1, KM
2, second current transformer TA
2With second control transformer BK
2, the third line is provided with terminal board XT, is provided with the wire casing plate between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right is provided with 2 pilot lamp EL
1, EL
2, 4 voltage table V
1～V
4, 2 reometer A
1, A
2, two power meter W
1, W
2With 4 pushbutton switch SB
1～SB
4
The operation circuit principle of no-load transformer, short circuit is the knowledge that the electrician specialty those of ordinary skill is known altogether, also is the content that must learn in electrician's teaching materials at different levels.Components and parts that the utility model is required with the operation circuit of no-load transformer and short circuit and test instrumentation all reasonably are provided with in order according to the wiring characteristics of its operation circuit and are installed on the wiring installing plate, and the wire casing plate has been installed on the wiring installing plate on demand, can between each components and parts, have been carried out the soft wiring of laying easily; Course of work when set measuring instrument can detect the working condition of operation circuit and no-load transformer, short circuit at any time.Each components and parts of the utility model are provided with succinct, clear, lead connects intuitively visual, and instrument, pilot lamp are arranged in order, and button is convenient to operation, be convenient to fault analysis, inspection and eliminating, refer to and have certain practical value on the industrial electric opertaing device operation circuit.Use the utility model, the teacher demonstrates after can carefully connecting the wire, and the principle of work and the process of no-load transformer and short circuit shown intuitively, can also be done it yourself after the wiring by the student, and whether the check wiring is correct.In examination is identified, the control circuit board that is run in addition by the examination personnel can be inserted the operation circuit that terminal board replaces this device, the correctness of its winding displacement of energising check.
Further set forth the utility model below in conjunction with Figure of description.
Description of drawings
Fig. 1 is a front view of the present utility model,
Fig. 2 is A '-A ' cut-open view of Fig. 1,
Fig. 3 is B '-B ' cut-open view of Fig. 1,
Fig. 4 is the elementary diagram of no-load transformer, short circuit.
Embodiment
As Fig. 1～shown in Figure 3, on wiring installing plate 1, install various components and parts, test instrumentation and wire casing plate 2 are set, the position distribution of each components and parts on wiring installing plate 1 is divided into left and right two big zones, and left area first row is provided with arranges automatic air-break switch QF, three-phase fuse FU
1, single-phase fuse FU
2, first current transformer TA
1With first control transformer BK
1, second row is provided with two contactor KM
1, KM
2, second current transformer TA
2With second control transformer BK
2, the third line is provided with terminal board XT, between the periphery of left area and the per two row components and parts wire casing plate 2 is set all, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right is provided with 2 pilot lamp EL
1, EL
2, 4 voltage table V
1～V
4, 2 reometer A
1, A
2, two power meter W
1, W
2With 4 pushbutton switch SB
1～SB
4, and by shown in Figure 4 each components and parts and test instrumentation are electrically connected, just constituted the utility model.During no-load test, power turn-on switch QF presses the button switch S B
1, KM
1The closed self-locking of normally open contact, the main contact closure, pressure regulator T gets.With transformer BK
1The high-pressure side open circuit, low-pressure side adds rated voltage by pressure regulator, at this moment, voltage table V
1, reometer A
1, power meter W
1With display lamp EL
1Show,, just can measure its transformation ratio, open circuit loss power and excitation impedance etc. by no-load current, voltage and no-load power.Press SB when stopping
2Get final product.During short-circuit test, press SB
3, KM
2The closed self-locking of normally open contact, the main contact closure, pressure regulator T gets.Because short-circuit test is at transformer BK
2The high-pressure side makes on high-tension side electric current just equal ratings by the voltage that pressure regulator adds lowly under the condition of low-pressure side short circuit, at this moment voltage table V
2, reometer A
2, power meter W
2With display lamp EL
2Show that shown power is the power that short-circuit test consumes, voltage is short-circuit voltage.Can try to achieve copper loss, short-circuit voltage and the short-circuit impedance of transformer by short-circuit test, press SB when stopping
4Get final product.
Claims (2)
1, no-load transformer, the short circuit trainer, the wiring that is used to demonstrate the course of work of no-load transformer and short circuit and carry out operation circuit is trained and examination, it is characterized in that, it includes wiring installing plate (1), pressure regulator T and the components and parts that are arranged on the wiring installing plate, test instrumentation and wire casing plate (2), each components and parts and test instrumentation are arranged regularly by operation circuit wiring rule on the wiring installing plate, set components and parts and test instrumentation have automatic air-break switch QF, fuse FU, current transformer TA, control transformer BK, contactor KM, terminal board XT, voltage table V, reometer A, power meter W, pilot lamp EL and pushbutton switch SB, each components and parts, operation circuit by no-load transformer or short circuit between test instrumentation and the pressure regulator is electrically connected.
2, trainer according to claim 1 is characterized in that, the position distribution of each components and parts on wiring installing plate (1) is divided into left and right two big zones, and left area first row is provided with arranges automatic air-break switch QF, three-phase fuse FU
1, single-phase fuse FU
2, first current transformer TA
1With first control transformer BK
1, second row is provided with two contactor KM
1, KM
2, second current transformer TA
2With second control transformer BK
2, the third line is provided with terminal board XT, is provided with wire casing plate (2) between the periphery of left area and the per two row components and parts, and all leads that connect components and parts all are arranged in the wire casing plate; Zone, the right is provided with 2 pilot lamp EL
1, EL
2, 4 voltage table V
1～V
4, 2 reometer A
1, A
2, two power meter W
1, W
2With 4 pushbutton switch SB
1～SB
4
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232835 CN2620907Y (en) | 2003-01-11 | 2003-01-11 | Transformer no-load, short-circuit training device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03232835 CN2620907Y (en) | 2003-01-11 | 2003-01-11 | Transformer no-load, short-circuit training device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2620907Y true CN2620907Y (en) | 2004-06-16 |
Family
ID=34248718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03232835 Expired - Fee Related CN2620907Y (en) | 2003-01-11 | 2003-01-11 | Transformer no-load, short-circuit training device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2620907Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777108A (en) * | 2013-10-24 | 2014-05-07 | 黄政 | Method for quickly searching grounding fault point of electrical equipment |
| CN105486972A (en) * | 2015-11-30 | 2016-04-13 | 国家电网公司 | Induction equipment no load/ short circuit integrated tester |
| CN108279329A (en) * | 2018-01-06 | 2018-07-13 | 佛山市英标电气有限公司 | A kind of transformer voltage measuring instrument |
-
2003
- 2003-01-11 CN CN 03232835 patent/CN2620907Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777108A (en) * | 2013-10-24 | 2014-05-07 | 黄政 | Method for quickly searching grounding fault point of electrical equipment |
| CN103777108B (en) * | 2013-10-24 | 2017-08-25 | 黄政 | A kind of method of quick lookup electrical equipment grounding trouble point |
| CN105486972A (en) * | 2015-11-30 | 2016-04-13 | 国家电网公司 | Induction equipment no load/ short circuit integrated tester |
| CN108279329A (en) * | 2018-01-06 | 2018-07-13 | 佛山市英标电气有限公司 | A kind of transformer voltage measuring instrument |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |