CN205103329U - Converter fault detection system - Google Patents
Converter fault detection system Download PDFInfo
- Publication number
- CN205103329U CN205103329U CN201520807814.6U CN201520807814U CN205103329U CN 205103329 U CN205103329 U CN 205103329U CN 201520807814 U CN201520807814 U CN 201520807814U CN 205103329 U CN205103329 U CN 205103329U
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- switch
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- power
- controllable silicon
- multimeter
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Abstract
The utility model provides a converter fault detection system, this detecting system includes the power, an universal meter, converter interface G1, G2 inserts positive respectively, interface K1, K2 inserts the power negative pole respectively, interface K1, be equipped with first switch between G1 and the power, interface K2, be equipped with the second switch between G2 and the power, converter interface AK, an inserts the power, interface AK, be equipped with the third switch between A and the power, be linked to be the return circuit through on -off control, whether use the universal meter to detect switches on, judge the quality of silicon controlled rectifier, fine or not this system that adopts of this detecting system easy operation price bian inside silicon controlled rectifier of yi converter can judge the quality very fast, the cost -effective while, the efficiency of production is greatly improved.
Description
Technical field
The utility model relates to frequency converter detection field, specifically refers to a kind of frequency converter failure detection system.
Background technology
Large-size variable-frequency device uses in a large number in four steel-making cranes, and in use there will be some faults, these faults are not easy to judge by conventional method, such as silicon controlled quality.When frequency converter failure can not power transmission, controllable silicon can not be triggered and cause carrying out failture evacuation, and maloperation can make frequency converter damage further, and whole price of every platform frequency conversion costly, greatly increase spare parts cost and repair time, significant impact is caused to production.Be necessary to find a kind of detection system and method can low price, simultaneously simple to operate, be difficult to the difficult problem detected after solving current frequency converter failure.
Summary of the invention
For solving the problem, the utility model provides a kind of frequency converter failure detection system, this system comprises power supply, multimeter, frequency converter interface G1, G2 access positive source respectively, and interface K1, K2 access power cathode respectively, the first switch is provided with between interface K1, G1 and power supply, be provided with second switch between interface K2, G2 and power supply, frequency converter interface AK, A access power supply, are provided with the 3rd switch between interface AK, A and power supply.
Described multimeter has positive pole, negative pole 2 interfaces.
The detection method of a kind of frequency converter failure detection system as above, comprises the following steps:
1) closed first switch and the 3rd switch, diode shelves got to by multimeter, connect the interface A on controllable silicon with negative pole, the interface AK on controllable silicon is connected with positive pole, hummer on multimeter can be reported to the police, this controllable silicon reverse-conducting, if not conducting illustrates that this controllable silicon has problem not use.Then turn off the first switch and the 3rd switch, the hummer on multimeter stops audible alarm at once.Finally open the first switch and the 3rd switch, multimeter is oppositely measured A terminal on a controllable silicon and AK terminal again, their not conducting, if continue conducting this controllable silicon short circuit is described, can not use, at this moment can judge that this controllable silicon is good, turn off the first switch and the 3rd switch.
2) next group is measured again, closed second switch and the 3rd switch, disconnect the first switch, diode shelves got to by multimeter, connect the K terminal on controllable silicon with positive pole, connect the AK terminal on controllable silicon with negative pole, the hummer at this moment on multimeter can be reported to the police, this illustrates this controllable silicon forward conduction, if not conducting illustrates that this controllable silicon has problem not use.Then turn off second switch and the 3rd switch, the hummer on multimeter stops audible alarm at once.Finally open second switch and the 3rd switch, multimeter oppositely measures K terminal on a controllable silicon and AK terminal again, if their not conducting continues conducting, and this controllable silicon short circuit is described, can not use.At this moment can judge that this controllable silicon is good, turn off second switch and the 3rd switch.
3) 1 ~ 3 step is repeated, the controllable silicon in Measurement for Inverter, thus the reason detecting frequency converter failure.
The beneficial effects of the utility model are: the inner controllable silicon quality of this detection system Cao Zuo Jian mono-﹑ price Bian Yi ﹑ frequency converter adopts this system can judge quality very soon, while cost-saving, substantially increases the efficiency of production.
Accompanying drawing explanation
Fig. 1 is the utility model system construction drawing;
Wherein: 1, power supply, 2, frequency converter, 3, multimeter, 4, positive pole, 5, negative pole, the 6, first switch, 7, second switch, the 8, the 3rd switch;
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
A kind of frequency converter failure detection system, this system comprises power supply 1, multimeter 3, frequency converter interface G1, G2 access positive source respectively, interface K1, K2 access power cathode respectively, be provided with the first switch 6, be provided with second switch 7 between interface K2, G2 and power supply between interface K1, G1 and power supply, frequency converter interface AK, A access power supply, are provided with the 3rd switch 8 between interface AK, A and power supply.
Described multimeter 3 has positive pole 4, negative pole 5 two interfaces.
The detection method of a kind of frequency converter failure detection system as above, comprises the following steps:
1) closed first switch 6 and the 3rd switch 8, diode shelves got to by multimeter 3, the interface A on controllable silicon is connected with negative pole 5, the interface AK on controllable silicon is connected with positive pole 4, hummer on multimeter 3 can be reported to the police, this controllable silicon reverse-conducting, if not conducting illustrates that this controllable silicon has problem not use.Then turn off the first switch 6 and the 3rd switch 8, the hummer on multimeter 3 stops audible alarm at once.Finally open the first switch 6 and the 3rd switch 8, multimeter 3 is oppositely measured A terminal on a controllable silicon and AK terminal again, their not conducting, if continue conducting this controllable silicon short circuit is described, can not use, at this moment can judge that this controllable silicon is good, turn off the first switch 6 and the 3rd switch 8.
2) next group is measured again, closed second switch 7 and the 3rd switch 8, disconnect the first switch 6, diode shelves got to by multimeter 3, connect the K terminal on controllable silicon with positive pole 4, connect the AK terminal on controllable silicon with negative pole 5, the hummer at this moment on multimeter 3 can be reported to the police, this illustrates this controllable silicon forward conduction, if not conducting illustrates that this controllable silicon has problem not use.Then turn off second switch 7 and the 3rd switch 8, the hummer on multimeter 3 stops audible alarm at once.Finally open second switch 7 and the 3rd switch 8, multimeter 3 oppositely measures K terminal on a controllable silicon and AK terminal again, if their not conducting continues conducting, and this controllable silicon short circuit is described, can not use.At this moment can judge that this controllable silicon is good, turn off second switch 7 and the 3rd switch 8.
3) 1 ~ 3 step is repeated, the controllable silicon in Measurement for Inverter, thus the reason detecting frequency converter failure.
Above embodiment is only in order to illustrate implementer's case of this material and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. a frequency converter failure detection system, this system comprises power supply (1), multimeter (3); It is characterized in that: frequency converter (2) interface G1, G2 access power supply (1) positive pole respectively, interface K1, K2 access power supply (1) negative pole respectively, the first switch (6) is provided with between interface K1, G1 and power supply, second switch (8) is provided with between interface K2, G2 and power supply, frequency converter (2) interface AK, A access power supply (1), are provided with the 3rd switch (7) between interface AK, A and power supply.
2. the detection method of a kind of frequency converter failure detection system according to claim 1, is characterized in that: described multimeter (3) has positive pole (4), negative pole (5) 2 interfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807814.6U CN205103329U (en) | 2015-10-16 | 2015-10-16 | Converter fault detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520807814.6U CN205103329U (en) | 2015-10-16 | 2015-10-16 | Converter fault detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205103329U true CN205103329U (en) | 2016-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520807814.6U Expired - Fee Related CN205103329U (en) | 2015-10-16 | 2015-10-16 | Converter fault detection system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205103329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841862A (en) * | 2017-01-22 | 2017-06-13 | 上海明东集装箱码头有限公司 | Peace river frequency converter UV method for diagnosing faults and its automatic detection device |
| CN110031739A (en) * | 2019-04-10 | 2019-07-19 | 嘉兴腓特烈太赫科技有限公司 | Method based on DC detecting screening Terahertz frequency mixer |
-
2015
- 2015-10-16 CN CN201520807814.6U patent/CN205103329U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841862A (en) * | 2017-01-22 | 2017-06-13 | 上海明东集装箱码头有限公司 | Peace river frequency converter UV method for diagnosing faults and its automatic detection device |
| CN110031739A (en) * | 2019-04-10 | 2019-07-19 | 嘉兴腓特烈太赫科技有限公司 | Method based on DC detecting screening Terahertz frequency mixer |
| CN110031739B (en) * | 2019-04-10 | 2021-05-18 | 嘉兴腓特烈太赫科技有限公司 | Method for screening terahertz frequency mixer based on direct current detection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170718 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei, Wuchang Friendship Avenue, No. 999, block A, layer 15, layer Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20201016 |