CN103412237B - Intelligent tester for transformer coil turn-to-turn short circuit - Google Patents
Intelligent tester for transformer coil turn-to-turn short circuit Download PDFInfo
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- CN103412237B CN103412237B CN201310369393.9A CN201310369393A CN103412237B CN 103412237 B CN103412237 B CN 103412237B CN 201310369393 A CN201310369393 A CN 201310369393A CN 103412237 B CN103412237 B CN 103412237B
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Abstract
The present invention relates to a kind of detect in transformer coil winding process and around adjacent turn between the intelligent tester for transformer coil turn-to-turn short circuit that whether is short-circuited.This tester comprises control module, polling module, sound and light alarm module and supply module, and control module comprises a single-chip microcomputer, and its input end connects supply module, and output terminal connects sound and light alarm module; Polling module comprises at least one control relay circuit be connected with single-chip microcomputer output terminal, single-chip microcomputer input end is provided with at least two for accessing the connection terminal of wire turn, the control relay circuit other end connects corresponding wiring terminal, for applying test voltage for corresponding wire turn.The present invention can in winding process timely detection line shorted-turn fault, and sound and light alarm display short-circuited turn position, pinpoints the problems and changes in time, save manpower and materials cost, improve production efficiency.
Description
Technical field
The present invention relates to short-circuit detecting field, particularly relate to a kind of detect in transformer coil winding process and around adjacent turn between the intelligent tester for transformer coil turn-to-turn short circuit that whether is short-circuited.
Background technology
Transformer coil processing and fabricating is one of vital link in power transformer manufacturing process; very crucial to the protection of wire turn external insulation and inspection in coil-winding process; the damage of Timeliness coverage wire turn external insulation; effectively can increase work efficiency, ensure the management and control to transformer production quality.
At present, on market also without any a kind of equipment can in transformer coil winding process because damage in insulation causes line turn-to-turn short circuit to detect, can only after transformer production have been assembled to the detection of coil turn-to-turn short circuit, could find when carrying out short-circuit test, even less short trouble can not be found.After finding turn-to-turn short circuit, need to hang cover, dismounting to transformer, coiling again, wastes time and energy, and greatly reduces production efficiency, adds production cost; Undiscovered short trouble, may impact the operation life of transformer and power supply safety.
In addition, coil winding carries out in the mold platform with elevating function, kind of a short-circuit detecting device is had now to be fixed on wire turn to start position, along with the carrying out of coiling operation, short-circuit detecting device declines with coil die, although be designed with audible alarm, operating personnel are inconvenient to observe the concrete wire turn position be short-circuited.
Summary of the invention
For the problems referred to above, the invention provides a kind of intelligent tester for transformer coil turn-to-turn short circuit, in coil-winding process, the shorted-turn fault caused can be destroyed by Real-Time Monitoring turn(s) insulation.
For achieving the above object, the technical solution used in the present invention is: a kind of intelligent tester for transformer coil turn-to-turn short circuit, comprise control module, polling module, sound and light alarm module and supply module, control module comprises a single-chip microcomputer, its input end connects supply module, and output terminal connects sound and light alarm module; Polling module comprises at least one control relay circuit be connected with single-chip microcomputer output terminal, single-chip microcomputer input end is provided with at least two for accessing the connection terminal of wire turn, the control relay circuit other end connects corresponding wiring terminal, for applying test voltage for corresponding wire turn.In coil-winding process, each independent wire turn is by the connection terminal of lead-in wire wire clamp access single-chip microcomputer, and the wire turn that often increase by is new, then access new connection terminal by newly-increased wire turn.The short circuit of Transformer Winding wire turn occurs between 2 adjacent wire turns, once 2 wire turns are short-circuited, both current potentials are identical, are all high level or are all low level.Detect adjacent turns whether short circuit, by the relay closes of Single-chip Controlling respective nodes be wherein single line circle pressurization, detect the level grade of adjacent turns corresponding wiring terminal simultaneously, if be high level, so these two adjacent turns short circuits, if be low level, then not short circuit, thus judge that position occurs in short circuit.Each pressurization, can only pressurize to single line circle, avoid occurring misjudgment phenomenon.The periodic pilot relay break-make of single-chip microcomputer, relay is connected, corresponding wire turn pressurization, recycle scans the level signal of each wire turn, judge whether adjacent turns are short-circuited according to level height, short circuit information coding is preserved and controls sound and light alarm module display short trouble and position occurs, the fault and auditory tone cues is short-circuited.
Consider frock environment and operating personnel's handled easily of working site, at winder control desk other placement failure message display terminal, this display terminal receives the short-circuit signal that short-circuit test device sends, and resolves the wire turn numbering also showing the fault that is short-circuited over the display, and light warning prompting.For realizing the wireless transmission of signal, adapt to frock environmental demand, said apparatus also comprises a radio receiving transmitting module be connected with control module, for short circuit information being sent to the display terminal of management system and the steering order sent of receiving management system.After control module preserves short circuit information coding, radio receiving transmitting module is driven to send short circuit information to display terminal.
Near radio signal transmission technology is quite ripe, comprises the products such as GPRS, Zigbee, less radio-frequency, and for adapting to short-distance transmission and on-the-spot environment, described radio receiving transmitting module is Zigbee wireless module.
Further, said apparatus also comprises an electric quantity of power supply monitoring modular, and its one end is connected with control module, and the other end is connected with supply module, for monitoring electric quantity of power supply.Described electric quantity of power supply monitoring modular comprises AD sample circuit, benchmark Comparison Circuit and battery capacity indication circuit, AD sample circuit is connected with supply module, gather power supply voltage signal, issue benchmark Comparison Circuit and compare with standard value, send alerting signal by battery capacity indication circuit.When supply voltage is lower than standard value, alarm battery electric quantity is not enough.The standard value of setting will leave certain surplus, ensures after prompting electricity deficiency, can also holding circuit work a period of time.
Beneficial effect of the present invention is as follows:
(1), to the present invention is directed to and around transformer coil winding Process Design, can in winding process timely detection line shorted-turn fault, and sound and light alarm display short-circuited turn position, pinpoints the problems and changes in time, save manpower and materials cost, improve production efficiency.
(2), based on Zigbee wireless data transmission receiver module transmission data, reliable effectively transmission within the scope of measurement data 200 meters can be realized at workshop, be convenient to realize to operating personnel, production management and control personnel to the process of fault and management and control, can be used as data collection station and the information transmission terminal of production automation system.
(3), there is electric quantity of power supply monitoring function, the electricity shortage of energy Timeliness coverage, prompting changing battery.
Accompanying drawing explanation
Fig. 1 is system chart of the present invention;
Fig. 2 is the circuit theory diagrams of embodiment of the present invention;
Fig. 3 is the circuit theory diagrams of embodiment of the present invention electric quantity of power supply monitoring modular;
In figure, 1, control module, 2, polling module, 3, supply module, 4, electric quantity of power supply monitoring modular, 5, radio receiving transmitting module, 6, sound and light alarm module.
Embodiment
In current transformer coil winding, modal coil is maximum and be 8 around radical, below for 8 and coiling circle, implementation process of the present invention is described:
As shown in Figure 1, a kind of transformer coil turn-to-turn short circuit tester, comprise control module 1, polling module 2, supply module 3, sound and light alarm module 6, electric quantity of power supply monitoring modular 4 and radio receiving transmitting module 5, control module 1 comprises a single-chip microcomputer, as shown in Figure 2, polling module 2 comprises four control relay circuits be connected with single-chip microcomputer output terminal, single-chip microcomputer input end is provided with 8 for accessing the connection terminal L1-L8 of wire turn, other input end connects supply module 3, input/output terminal connects radio receiving transmitting module 5, output terminal connects sound and light alarm module 6 and electric quantity of power supply monitoring modular 4, electric quantity of power supply monitoring modular 4 other end connects supply module 3.Control relay circuit comprises a triode and is connected with transistor collector and diode parallel with one another and 5V relay, transistor base connects single-chip microcomputer output terminal, grounded emitter, diode and relay one termination 5V voltage, the normally opened contact of four relay K 1-K4 connects odd number connection terminal L1, L3, L5, L7 respectively.Single-chip microcomputer controls corresponding relay closes by control relay circuit, and being that respective terminal is sub loads 5V voltage, and single-chip microcomputer scanning connects each I/O port level height of wire turn, judges whether to be short-circuited and short circuit generation position.Described radio receiving transmitting module 5 is Zigbee wireless module.As shown in Figure 3, described electric quantity of power supply monitoring modular 4 comprises AD sample circuit, benchmark Comparison Circuit and battery capacity indication circuit, and AD sample circuit is connected with supply module, gathers power supply voltage signal, issue benchmark Comparison Circuit to compare with standard value, send alerting signal by battery capacity indication circuit.AD is sampled input and being realized by a chip TLC5615 with the comparison of standard value.When sampled value is less than standard value, output level is low level; When sampled value is greater than standard value, output level is high level, thus realizes the monitoring to electric quantity of power supply, and prompting battery electric quantity is not enough in time.Frequency clock and the chip enable cs of sampling realize by Single-chip Controlling.
Process of patrolling and examining of the present invention is as follows:
In winding process, by the connection terminal of each independent wire turn by lead-in wire wire clamp access tester, the wire turn that often increase by is new, then access new connection terminal by newly-increased wire turn.Single-chip Controlling relay K 1 closes, to the Line 1 circle pressurization that connection terminal L1 connects, detect the level grade of No. 2 wire turn corresponding wiring terminal L2, if No. 1 and No. 2 wire turn short circuits, then No. 2 wire turn corresponding wiring terminal L2 should be high level, otherwise be low level, the whether short circuit of Line 1 circle and No. 2 wire turns can be judged like this; The power-off of Line 1 circle, Single-chip Controlling relay K 2 connects No. 3 wire turn pressurizations to connection terminal L3, same method scans the level grade of No. 2 and No. 4 wire turn corresponding wiring terminal L2, L4, according to the height of level, judge No. 2 wire turns and No. 3 wire turns, whether be short-circuited between No. 3 wire turns and No. 4 wire turns; The like, to No. 5, No. 7 odd number wire turn pressurizations, detect the level grade of neighbouring even-numbered wire turn, thus judge whether short circuit, and each pressurization can only to 1 wire turn pressurization, avoid occurring misjudgment phenomenon, as: simultaneously to No. 1 and No. 3 wire turn pressurizations, detecting No. 2 wire turns is high level, No. 2 wire turn voltages raise and cause with No. 2 short circuits by No. 1, or No. 2 cause with No. 3 short circuits, cannot judge, therefore circulate to all odd number wire turns pressurization, each only to 1 wire turn pressurization, realize the accurate judgement to all fault wire turn positions that is short-circuited.
Be more than one embodiment of the present of invention, based on this detection method, the short-circuit detecting device that synchronously can detect other radical wire turns that those skilled in the art make, all within protection scope of the present invention.
Claims (3)
1. an intelligent tester for transformer coil turn-to-turn short circuit, comprise control module, polling module, sound and light alarm module and supply module, control module comprises a single-chip microcomputer, and its input end connects supply module, and output terminal connects sound and light alarm module; It is characterized in that: also comprise an electric quantity of power supply monitoring modular, its one end is connected with control module, the other end is connected with supply module, for monitoring electric quantity of power supply, described electric quantity of power supply monitoring modular comprises AD sample circuit, benchmark Comparison Circuit and battery capacity indication circuit, and AD sample circuit is connected with supply module, gathers power supply voltage signal, issue benchmark Comparison Circuit to compare with standard value, send alerting signal by battery capacity indication circuit; Polling module comprises at least one control relay circuit be connected with single-chip microcomputer output terminal, single-chip microcomputer input end is provided with at least two for accessing the connection terminal of wire turn, the control relay circuit other end connects corresponding wiring terminal, for applying test voltage for corresponding wire turn.
2. intelligent tester for transformer coil turn-to-turn short circuit according to claim 1, it is characterized in that: also comprise a radio receiving transmitting module be connected with control module, for short circuit information being sent to the display terminal of management system and the steering order sent of receiving management system.
3. intelligent tester for transformer coil turn-to-turn short circuit according to claim 2, is characterized in that: described radio receiving transmitting module is Zigbee wireless module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369393.9A CN103412237B (en) | 2013-08-22 | 2013-08-22 | Intelligent tester for transformer coil turn-to-turn short circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310369393.9A CN103412237B (en) | 2013-08-22 | 2013-08-22 | Intelligent tester for transformer coil turn-to-turn short circuit |
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| CN103412237A CN103412237A (en) | 2013-11-27 |
| CN103412237B true CN103412237B (en) | 2016-03-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823151B (en) * | 2014-02-08 | 2017-02-01 | 上海沪工汽车电器有限公司 | Testing method of automotive electromagnetic relay short-circuit tester |
| CN106124923A (en) * | 2016-06-17 | 2016-11-16 | 山东达驰电气有限公司 | A kind of three-phase transformer turn-to-turn fault detection circuit and detection method |
| CN106249144B (en) * | 2016-08-16 | 2019-01-08 | 株洲中车时代电气股份有限公司 | Doubly-fed wind turbine interturn short-circuit failure diagnosing method and fault monitoring method |
| RU172494U1 (en) * | 2017-02-02 | 2017-07-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Казанский государственный энергетический университет" | TRANSFORMER WINDING DETECTION DETECTION DEVICE |
| CN116400175B (en) * | 2023-02-14 | 2024-02-02 | 山东电工电气集团数字科技有限公司 | Device and method for on-line monitoring of coil insulation of power transformer |
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| EP2416167A1 (en) * | 2009-02-28 | 2012-02-08 | Zhejiang Guangtian Transformer Co., Ltd | Improved turn-to-turn short circuit detection device of transformer via differential voltage |
| CN202256572U (en) * | 2011-06-08 | 2012-05-30 | 张新安 | FBT coil turn-to-turn short circuit tester |
| CN202383210U (en) * | 2011-12-23 | 2012-08-15 | 湖北易瓦特科技有限公司 | Automatic no-load voltage ratio tester for transformer |
| CN203385821U (en) * | 2013-08-22 | 2014-01-08 | 山东电力设备有限公司 | Transformer coil turn-to-turn short circuit intelligent tester |
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2013
- 2013-08-22 CN CN201310369393.9A patent/CN103412237B/en active Active
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| EP2416167A1 (en) * | 2009-02-28 | 2012-02-08 | Zhejiang Guangtian Transformer Co., Ltd | Improved turn-to-turn short circuit detection device of transformer via differential voltage |
| CN202256572U (en) * | 2011-06-08 | 2012-05-30 | 张新安 | FBT coil turn-to-turn short circuit tester |
| CN202383210U (en) * | 2011-12-23 | 2012-08-15 | 湖北易瓦特科技有限公司 | Automatic no-load voltage ratio tester for transformer |
| CN203385821U (en) * | 2013-08-22 | 2014-01-08 | 山东电力设备有限公司 | Transformer coil turn-to-turn short circuit intelligent tester |
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| CN103412237A (en) | 2013-11-27 |
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| ASS | Succession or assignment of patent right |
Owner name: STATE GRID ZHEJIANG ELECTRIC POWER COMPANY Effective date: 20141215 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20141215 Address after: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Applicant after: Shandong Power Equipment Company Applicant after: State Grid Zhejiang Electric Power Company Address before: 250022 Shandong Province, Ji'nan city central machine West Road No. 3 Applicant before: Shandong Power Equipment Company |
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