CN103824490A - Alternating current contactor teaching instrument - Google Patents
Alternating current contactor teaching instrument Download PDFInfo
- Publication number
- CN103824490A CN103824490A CN201410074002.5A CN201410074002A CN103824490A CN 103824490 A CN103824490 A CN 103824490A CN 201410074002 A CN201410074002 A CN 201410074002A CN 103824490 A CN103824490 A CN 103824490A
- Authority
- CN
- China
- Prior art keywords
- alternating current
- contactor
- current contactor
- fuse
- pilot lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an alternating current contactor teaching instrument which comprises an alternating current contactor model KM, a power supply, a voltage regulation measurement circuit and an indication circuit, wherein the alternating current contactor model KM, the power supply, the voltage regulation measurement circuit and the indication circuit are arranged in a transparent shell. The voltage regulation measurement circuit comprises a fuse FU1, an autotransformer T1, a rotary switch SB, a voltmeter V, an ammeter A and an electromagnetic coil of the alternating current contactor model KM. The indication circuit comprises a fuse FU2, a transformer T2, a normally-open contact of the alternating current contactor model KM, a normally-closed contact of the alternating current contactor model KM, an indicating lamp L1 and an indicating lamp L2. The alternating current contactor teaching instrument has visuality and can be experienced, the abstract process can be converted into the visible process, the internal structure and the work principle of the alternating current contactor are observed, electrical parameters can be measured, and the undervoltage protection function of the alternating current contactor can be verified. By means of the experience learning process, the enjoyment of the teaching process is enhanced, lecture participation and learning initiation of students in secondary vocational schools are improved, comprehension and grasping of related knowledge of the alternating current contactor are deepened, and the teaching effect is improved.
Description
Technical field
The present invention relates to a kind of instruments used for education, be specifically related to a kind of A.C. contactor Teaching instrument, for the aided education demonstration of A.C. contactor.
Background technology
" A.C. contactor " is secondary vocational school's electrical operation and controls professional core course---one of the core content of courses of " electrical towage control circuit and skill training ", " A.C. contactor " is also one of most typical core devices in common low-tension device simultaneously.In teaching, teacher is difficult to say thoroughly, says structure, principle of work, contact course of action and the under-voltage protection function of understanding A.C. contactor, this be because:
1, " A.C. contactor " shell in kind is black engineering plastics, opaque, and student cannot observe the inner structure of A.C. contactor intuitively.
If 2 adopt the structure principle chart of A.C. contactor to explain, require student to there is good drawing reading ability and space imagining ability, and middle duty student is difficult to understand according to structure principle chart inner structure and the principle of work of " A.C. contactor ".
On investigation market, temporarily without teachings associated instrument, therefore, we are necessary to invent and a kind ofly become abstract and simplify the teaching process of A.C. contactor for visual scheme directly perceived, make student deepen the understanding to knowledge, effectively improve classroom teaching effect.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide one to there is " visual, can experience property ", be beneficial to the A.C. contactor Teaching instrument that improves classroom instruction, experiment effect.
For achieving the above object, the technical solution used in the present invention is: A.C. contactor Teaching instrument comprises the A.C. contactor model KM that is placed in transparent shell, power supply, pressure regulation metering circuit and indicating circuit, described power supply comprises alternating current 220V feeder ear and automatic air-break switch QF, pressure regulation metering circuit comprises fuse FU1, autotransformer T1, rotary switch SB, voltage table V, the solenoid of reometer A and A.C. contactor model KM, indicating circuit comprises fuse FU2, transformer T2, the normally open contact of A.C. contactor model KM, normally closed interlock, pilot lamp L1 and pilot lamp L2, the end of incoming cables of automatic air-break switch QF is connected with alternating current 220V feeder ear, a leading-out terminal of automatic air-break switch QF is connected with one end of fuse FU1 and one end of fuse FU2, the other end of fuse FU1 is connected with the one end on the former limit of autotransformer T1, the other end of fuse FU2 is connected with the one end on the former limit of transformer T2, the other end on the other end on the former limit of autotransformer T1 and the former limit of transformer T2 is connected with another leading-out terminal of automatic air-break switch QF, one end of autotransformer T1 secondary is connected with one end of the positive pole of voltage table V and rotary switch SB, the other end of rotary switch SB is connected with the positive pole of reometer A, the negative pole of reometer A is connected with one end of the solenoid of A.C. contactor model KM, the other end of the solenoid of A.C. contactor model KM is connected with the other end of the other end of voltage table V and autotransformer T1 secondary, one end of transformer T2 secondary is connected with one end of normally open contact and one end of normally closed interlock of A.C. contactor model KM, the other end of normally open contact is connected with one end of pilot lamp L1, the other end of normally closed interlock is connected with one end of pilot lamp L2, the other end of the other end of pilot lamp L1 and pilot lamp L2 is connected with the other end of transformer T2 secondary.
Further feature of the present invention is the same face that A.C. contactor model KM, the automatic air-break switch QF of A.C. contactor Teaching instrument, fuse FU1, autotransformer T1, rotary switch SB, voltage table V, reometer A, the second fuse FU2, transformer T2, pilot lamp L1 and pilot lamp L2 is all fixed on to demonstration board, to facilitate observation, guarantee to demonstrate effect.
Principle of work: power supply provides respectively alternating current 220V voltage for pressure regulation metering circuit and indicating circuit, fuse FU1 provides short-circuit protection for pressure regulation metering circuit, fuse FU2 provides short-circuit protection for indicating circuit, adjusting autotransformer T1 in pressure regulation metering circuit can be by alternating current 220V voltage transition for exchanging 0-250V voltage, is the solenoid power supply of A.C. contactor model KM; In indicating circuit, transformer T2 can, by alternating current 220V voltage transition for exchanging 12V, be pilot lamp L1, L2 power supply.
By the break-make of control handle switch S B, the solenoid that can control A.C. contactor model KM obtains electric and dead electricity, electromagnetic system and contact system action.Voltage table V can detect and show the magnitude of voltage of the solenoid of A.C. contactor model KM in real time, and reometer A can detect and show the current value of the solenoid of A.C. contactor model KM in real time.
In indicating circuit, the normally open contact of A.C. contactor model KM is connected with pilot lamp L1, and normally closed interlock is connected with pilot lamp L2; In the time of rotary switch SB access failure, the solenoid dead electricity of A.C. contactor model KM, the contact system of A.C. contactor model KM does not move, and pilot lamp L2 obtains electric bright; In the time that rotary switch SB connects, the solenoid of A.C. contactor model KM obtains electric, and the contact system of A.C. contactor model KM moves, and pilot lamp L2 dead electricity is extinguished, and pilot lamp L1 obtains electric bright.
By adjusting autotransformer T1 output voltage; can change the solenoid voltage of A.C. contactor model KM; checking A.C. contactor under-voltage protection function; while being reduced to below 85% rated voltage by coil voltage; electromagnetic system can not be stablized adhesive and present noise and vibration and increase, and indicating circuit will show pilot lamp flicker.
The invention has the beneficial effects as follows: 1, have " visuality ", student can observe by transparent A.C. contactor model shell the inner structure of A.C. contactor, become abstract in directly perceived, strengthen student's perceptual knowledge.
2, have " can experience property "; student's experiment of can switching on; observe intuitively the course of action of " A.C. contactor " electromagnetic system (moving iron core, fixed core and solenoid) course of work, contact system; realize the measurement to important electric parameters such as " A.C. contactor " coil voltage, electric currents; and can be by adjusting regulating circuit; change the coil voltage of A.C. contactor model, checking A.C. contactor under-voltage protection function.
3, be suitable for the experiment of 2-4 people's group cooperation, be convenient to the tissue of teaching process and carry out, improve student classroom participation.
In teaching by A.C. contactor Teaching instrument, can become abstract in directly perceived, strong being good at of performance secondary vocational school students observation ability, by the learning process of experience type, strengthen the interest of teaching process, improve student's Initiative degree and learning initiative, deepen understanding and grasp to A.C. contactor relevant knowledge, break through focal points and difficult point, improve electrical operation and the teaching efficiency of controlling specialized courses.
Accompanying drawing explanation
Fig. 1 is A.C. contactor Teaching instrument electric control theory figure.
Embodiment
With reference to Fig. 1, A.C. contactor Teaching instrument of the present invention comprises the A.C. contactor model KM, power supply, pressure regulation metering circuit and the indicating circuit that are placed in transparent shell, described power supply comprises alternating current 220V feeder ear and automatic air-break switch QF, pressure regulation metering circuit comprises the solenoid c of fuse FU1, autotransformer T1, rotary switch SB, voltage table V, reometer A and A.C. contactor model KM, and indicating circuit comprises normally open contact a, normally closed interlock b, pilot lamp L1 and the pilot lamp L2 of fuse FU2, transformer T2, A.C. contactor model KM; the end of incoming cables of automatic air-break switch QF is connected with alternating current 220V feeder ear, a leading-out terminal L of automatic air-break switch QF is connected with one end of fuse FU1 and one end of fuse FU2, the other end of fuse FU1 is connected with the one end on the former limit of autotransformer T1, the other end of fuse FU2 is connected with the one end on the former limit of transformer T2, the other end on the other end on the former limit of autotransformer T1 and the former limit of transformer T2 is connected with another leading-out terminal N of automatic air-break switch QF, one end of autotransformer T1 secondary is connected with one end of the positive pole of voltage table V and rotary switch SB, the other end of rotary switch SB is connected with the positive pole of reometer A, the negative pole of reometer A is connected with one end of the solenoid c of A.C. contactor model KM, the other end of the solenoid c of A.C. contactor model KM is connected with the other end of the other end of voltage table V and autotransformer T1 secondary, one end of transformer T2 secondary is connected with one end of the normally open contact a of A.C. contactor model KM and one end of normally closed interlock b, the other end of normally open contact a is connected with one end of pilot lamp L1, the other end of normally closed interlock b is connected with one end of pilot lamp L2, the other end of the other end of pilot lamp L1 and pilot lamp L2 is connected with the other end of transformer T2 secondary.
The attainable function of A.C. contactor Teaching instrument has: 1, show inner structure, the A.C. contactor model shell that adopts transparent organic glass to make, can facilitate observation of students to inner structure, and the demonstration contactor principle of work of can switching on, the Electromagnetic System of Contactor while observing energising work and the course of action of contact system.2, demonstrating electrical magnetic system principle of work, autotransformer pressure regulation is during to coil rating voltage 220V, closed rotary switch SB, A.C. contactor KM coil obtains electric, moving unshakable in one's determinationly move downward under electromagnetic attraction effect; Release knob switch S B, ac contactor coil dead electricity, moving unshakable in one's determination release, separates with fixed core.Student can observe coil to moving attraction process unshakable in one's determination by transparent outer cover.3, the course of action of demonstration contact system, on Teaching instrument, there is a pair of normally opened contact and a pair of normally closed contact, adopt 12V ac power supply, use pilot lamp (if L1 is that green light, L2 are red light) the composition indicating circuit of different colours, facilitate student to understand the course of action of contact system.4, the work phenomenon of demonstration A.C. contactor under different voltage, regulates autotransformer, asks student to record ac contactor coil voltage and current value, observes electromagnetic system and contact system working condition, notes vibration and noise situation; This experiment makes student can observe intuitively the under-voltage protection function of A.C. contactor, and can quantitative test release voltage.
Claims (2)
1. A.C. contactor Teaching instrument, it is characterized in that comprising the A.C. contactor model KM that is placed in transparent shell, power supply, pressure regulation metering circuit and indicating circuit, described power supply comprises alternating current 220V feeder ear and automatic air-break switch QF, pressure regulation metering circuit comprises fuse FU1, autotransformer T1, rotary switch SB, voltage table V, the solenoid (c) of reometer A and A.C. contactor model KM, indicating circuit comprises fuse FU2, transformer T2, the normally open contact (a) of A.C. contactor model KM, normally closed interlock (b), pilot lamp L1 and pilot lamp L2, the end of incoming cables of automatic air-break switch QF is connected with alternating current 220V feeder ear, a leading-out terminal (L) of automatic air-break switch QF is connected with one end of fuse FU1 and one end of fuse FU2, the other end of fuse FU1 is connected with the one end on the former limit of autotransformer T1, the other end of fuse FU2 is connected with the one end on the former limit of transformer T2, the other end on the other end on the former limit of autotransformer T1 and the former limit of transformer T2 is connected with another leading-out terminal (N) of automatic air-break switch QF, one end of autotransformer T1 secondary is connected with one end of the positive pole of voltage table V and rotary switch SB, the other end of rotary switch SB is connected with the positive pole of reometer A, the negative pole of reometer A is connected with one end of the solenoid (c) of A.C. contactor model KM, the other end of the other end of solenoid (c) of A.C. contactor model KM and the other end of voltage table V and autotransformer T1 secondary is connected, one end of transformer T2 secondary is connected with one end of the normally open contact (a) of A.C. contactor model KM and one end of normally closed interlock (b), the other end of normally open contact (a) is connected with one end of pilot lamp L1, the other end of normally closed interlock (b) is connected with one end of pilot lamp L2, the other end of the other end of pilot lamp L1 and pilot lamp L2 is connected with the other end of transformer T2 secondary.
2. A.C. contactor Teaching instrument according to claim 1, is characterized in that described A.C. contactor model KM, automatic air-break switch QF, fuse FU1, autotransformer T1, rotary switch SB, voltage table V, reometer A, the second fuse FU2, transformer T2, pilot lamp L1 and pilot lamp L2 are all fixed on the same face of demonstration board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074002.5A CN103824490A (en) | 2014-03-03 | 2014-03-03 | Alternating current contactor teaching instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074002.5A CN103824490A (en) | 2014-03-03 | 2014-03-03 | Alternating current contactor teaching instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103824490A true CN103824490A (en) | 2014-05-28 |
Family
ID=50759522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410074002.5A Pending CN103824490A (en) | 2014-03-03 | 2014-03-03 | Alternating current contactor teaching instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103824490A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201093U (en) * | 1985-04-01 | 1986-02-05 | 陕西师范大学 | Photoelectric effect demonstration appliance |
| CN86204002U (en) * | 1986-08-06 | 1987-12-23 | 上海市电器技术研究所 | Power-saving ac contactor |
| CN2212810Y (en) * | 1995-01-12 | 1995-11-15 | 陈继权 | Demonstrating board for electricity teaching experiment |
| CN1404223A (en) * | 2002-01-22 | 2003-03-19 | 赵洪楷 | AC contactor |
| US8155902B2 (en) * | 2008-10-08 | 2012-04-10 | Xantrex Technology Inc. | Contactor status detection in power inverters |
| EP2515403A1 (en) * | 2011-04-19 | 2012-10-24 | Eaton Industries GmbH | Circuit arrangements for an alternating current contactor, motor protection relay and method for producing a voltage supply |
| CN103022959A (en) * | 2013-01-11 | 2013-04-03 | 南阳防爆电气研究所有限公司 | Method and device for adhesion detection of main contact of alternating-current contactor |
| CN203733387U (en) * | 2014-03-03 | 2014-07-23 | 杭州市中策职业学校 | Alternating-current contactor teaching instrument |
-
2014
- 2014-03-03 CN CN201410074002.5A patent/CN103824490A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85201093U (en) * | 1985-04-01 | 1986-02-05 | 陕西师范大学 | Photoelectric effect demonstration appliance |
| CN86204002U (en) * | 1986-08-06 | 1987-12-23 | 上海市电器技术研究所 | Power-saving ac contactor |
| CN2212810Y (en) * | 1995-01-12 | 1995-11-15 | 陈继权 | Demonstrating board for electricity teaching experiment |
| CN1404223A (en) * | 2002-01-22 | 2003-03-19 | 赵洪楷 | AC contactor |
| US8155902B2 (en) * | 2008-10-08 | 2012-04-10 | Xantrex Technology Inc. | Contactor status detection in power inverters |
| EP2515403A1 (en) * | 2011-04-19 | 2012-10-24 | Eaton Industries GmbH | Circuit arrangements for an alternating current contactor, motor protection relay and method for producing a voltage supply |
| CN103022959A (en) * | 2013-01-11 | 2013-04-03 | 南阳防爆电气研究所有限公司 | Method and device for adhesion detection of main contact of alternating-current contactor |
| CN203733387U (en) * | 2014-03-03 | 2014-07-23 | 杭州市中策职业学校 | Alternating-current contactor teaching instrument |
Non-Patent Citations (1)
| Title |
|---|
| 邱俊: "《工厂电气控制技术》", 30 April 2009, 中国水利水电出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108198477A (en) | Electrical test of transformer simulation teaching system | |
| CN104835396A (en) | Simulation system based on anti-electric-larceny skill training | |
| CN203276676U (en) | Training device for safe use of electricity | |
| CN201562395U (en) | Safe electricity use training device | |
| CN201859578U (en) | Experiment training device for solar photovoltaic power generation system | |
| CN203733387U (en) | Alternating-current contactor teaching instrument | |
| CN206541513U (en) | Left hand rule and electromagnetic induction demonstration device | |
| CN204650853U (en) | A kind of simulation system based on skills training of opposing electricity-stealing | |
| CN103824490A (en) | Alternating current contactor teaching instrument | |
| CN103943010A (en) | Fault simulation transformer | |
| CN109036047A (en) | Magnetic-type Quantitative demonstration apparatus about Ampere force | |
| CN203799545U (en) | Simulation fault transformer | |
| CN209928761U (en) | Transformer for teaching | |
| CN209514909U (en) | Metering device wiring judges training and examination device | |
| CN110148338A (en) | A kind of electromagnetic induction experimental apparatus for researching and its experimental method | |
| CN209514950U (en) | Instrument uses training and examination device | |
| CN105702141A (en) | Live trimming body feeling system | |
| CN211124635U (en) | Circuit for testing during electric control practical training | |
| CN108490351A (en) | A kind of generator amature Multifunctional simulator, simulation system and application method | |
| CN203733389U (en) | Self-inductance and electromagnetic oscillationdemonstration dual-purpose instrument | |
| CN204256100U (en) | Instrument for testing polarity of current transformer | |
| CN210223226U (en) | Electromagnetic induction exploration experimental apparatus | |
| CN203300112U (en) | Electricity measurement and electricity distribution demonstration board | |
| CN206564075U (en) | The electrical control experimenting teaching cabinet of settable failure | |
| CN219122825U (en) | Three-remote defect elimination experiment table for power distribution terminal for training |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140528 |