CN2166395Y - Electrical character testing instrument for arc furnace - Google Patents
Electrical character testing instrument for arc furnace Download PDFInfo
- Publication number
- CN2166395Y CN2166395Y CN 92216225 CN92216225U CN2166395Y CN 2166395 Y CN2166395 Y CN 2166395Y CN 92216225 CN92216225 CN 92216225 CN 92216225 U CN92216225 U CN 92216225U CN 2166395 Y CN2166395 Y CN 2166395Y
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- CN
- China
- Prior art keywords
- casing
- voltage
- test lead
- arc furnace
- testing instrument
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- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an electrical character testing instrument for an arc furnace, comprising a casing 12, a converter unit 1, a main mainboard, a switch power supply 8, a keyboard 9, a display 10 and a contact lever 13. The back panel of the casing is provided with voltage having high-voltage and low-voltage electrodes and a current test end, and the mainboard is mainly composed of a multiway switch, an A / D converter, a shaping circuit, a single-chip computer, an RAM and an EPROM. The testing instrument can be used for measuring and calculating electrical characteristics and the operation characteristics of electric voltage at all levels, analyzing waveform, measuring harmonic content and monitoring the overall process of smelting as well as used for measuring the resistance value and the three-phase unbalance coefficient of the main electrical loop of the electric arc furnace on line.
Description
The utility model relates to a kind of electric arc furnaces electrical characteristics test instrument.
In the prior art, the electrical characteristic of measuring electric arc furnaces all is to record resistance, reactance in short-circuit condition with conventional ammeter, voltmeter, further analyzes the electrical characteristic of electric arc furnaces again, but measures very trouble like this, calculates loaded down with trivial details and risky.
The purpose of this utility model provides a kind of tester of on-line testing electric arc furnaces electrical characteristic.
The purpose of this utility model is achieved in that and includes casing 12, its special character is that it also includes converter groups 1, motherboard, Switching Power Supply 8, keyboard 9, display 10 and feeler lever 13, and motherboard comprises multicircuit switch 2, A/D converter 3, shaping circuit 4, single-chip microcomputer 5, RAM6, EPROM7; It is interior or outer that converter groups 1 can be arranged on casing 12, motherboard and Switching Power Supply 8 are arranged in the casing 12, the front panel of casing 12 is provided with keyboard 9 and display 10, on the rear board of casing 12, be provided with high pressure three-phase current test lead 14, high pressure three-phase voltage test lead 17, low pressure three-phase current test lead 15, low pressure three-phase current test lead 16, electrode three-phase voltage test feeler lever 13, on-site signal is held converter groups 1 after tested, output to multicircuit switch 2 through converter groups 1 again, the output one tunnel of multicircuit switch 2 is sent bus through A/D converter 3, single-chip microcomputer 5 is delivered to through shaping circuit 4 in another road, Switching Power Supply 8 links to each other with single-chip microcomputer 5 and display 10, single-chip microcomputer 5, A/D converter 3, RAM6 all links to each other with bus with EPROM7 and carries out work by it, and keyboard 9 also links to each other with bus with display 10.
The utility model also can be provided with the draught machine 11 that links to each other with bus, is arranged on the rear board of casing 12 to link to each other with draught machine interface 18.
The utility model can on-line measurement go out electric major loop resistance value of electric arc furnaces and three-phase imbalance coefficient; Can carry out the electrical characteristic measuring and calculating, as the measuring and calculating of meritorious power, reactive power, arc voltage, power factor, electrical efficiency, power loss and Optimal Control electric current etc.; Can carry out the measuring and calculating of voltage power supply characteristics at different levels.Promptly simulate characteristic working curve, and provide the recommended current interval according to field data; Can carry out waveform analysis and harmonic content, measure, can show 16 primary current voltage harmonic amounts, the 20 primary current voltage harmonic amounts of printing dynamically show electric current, voltage waveform; Can smelt the overall process monitoring, i.e. dynamic monitoring three-phase arc power, three-phase current, three-phase voltage and the duration of heat and power consumption; Can set the optimization distribution curve; Can provide quantitative data for short net transformation; Power factor, electric current, voltage and four curves of arc power of all right whole smelting process of printout.
Be described in detail technical solution of the present utility model below in conjunction with accompanying drawing.
Fig. 1 is the outline drawing of electric arc furnaces electrical characteristics test instrument.
Fig. 2 is the rear board schematic diagram of electric arc furnaces electrical characteristics test instrument.
Fig. 3 is the circuit structure block diagram of electric arc furnaces electrical characteristics test instrument.
As figure, the utility model includes casing 12, its special character is that it also includes converter groups 1, motherboard, Switching Power Supply 8, keyboard 9, display 10 and feeler lever 13, and motherboard comprises that multicircuit switch 2, A/D change 3 devices, shaping circuit 4, single-chip microcomputer 5, RAM6, EPROM7; Converter groups 1, motherboard and Switching Power Supply 8 are arranged in the casing 12, the front panel of casing 12 is provided with keyboard 9 and display 10, on the rear board of casing 12, be provided with high pressure three-phase current test lead 14, high pressure three-phase voltage test lead 17, low pressure three-phase current test lead 15, low pressure three-phase voltage test lead 16, electrode three-phase voltage test feeler lever 13, and the draught machine interface 18 that links to each other with draught machine 11, draught machine 11 links to each other with bus, on-site signal is held converter groups 1 after tested, output to multicircuit switch 2 through converter groups 1 again, the output one tunnel of multicircuit switch 2 is sent bus through A/D converter 3, single-chip microcomputer 5 is delivered to through shaping circuit 4 in another road, Switching Power Supply 8 links to each other with single-chip microcomputer 5 and display 10, single-chip microcomputer 5, A/D converter 3, RAM6 all links to each other with bus with EPROM7 and carries out work by it, and keyboard 9 also links to each other with bus with display 10.
During test, at first when electric furnace has a power failure, with high pressure three-phase current test lead, voltage tester end, low pressure three-phase current test lead, voltage tester end, electrode three-phase voltage test feeler lever connect, and open instrument power source, wait for electric furnace work, carry out various test functions according to various function keys, on-site signal arrives A/D converter through converter groups 1 and multicircuit switch 2, and single-chip microcomputer 5, RAM6 and EPROM7 and A/D conversion send display to show and draught machine output the result through bus work.
Claims (2)
1, a kind of electric arc furnaces electric characteristic tester, include casing (12), motherboard, Switching Power Supply (8), it is characterized in that it also comprises converter groups (1), keyboard (9), display (10) and feeler lever (13), it is interior or outer that converter groups (1) can be arranged on casing (12), the front panel of casing (12) is provided with keyboard (9) and display (10), on the rear board of casing (12), be provided with high pressure three-phase current test lead (14), high pressure three-phase voltage test lead (17), low pressure three-phase current test lead (15), low pressure three-phase voltage test lead (16), electrode three-phase voltage test lead feeler lever (13).
2, electric arc furnaces electrical characteristics test instrument according to claim 1 is characterized in that it also includes the draught machine (11) that links to each other with bus, is arranged on the rear board of casing (12), links to each other with draught machine interface (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216225 CN2166395Y (en) | 1992-06-19 | 1992-06-19 | Electrical character testing instrument for arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216225 CN2166395Y (en) | 1992-06-19 | 1992-06-19 | Electrical character testing instrument for arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2166395Y true CN2166395Y (en) | 1994-05-25 |
Family
ID=33764430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216225 Expired - Fee Related CN2166395Y (en) | 1992-06-19 | 1992-06-19 | Electrical character testing instrument for arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2166395Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680536A (en) * | 2012-06-11 | 2012-09-19 | 西北工业大学 | Vacuum self-electricity-consumption arc furnace molten drop test method based on a silicon-controlled power supply |
| WO2015192273A1 (en) * | 2014-06-19 | 2015-12-23 | 国家电网公司 | Self-adaptive modeling apparatus for three-phase alternating-current electric arc furnace, and simulation algorithm therefor |
| CN110596441A (en) * | 2019-09-19 | 2019-12-20 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Voltage diagnostic instrument for movably detecting parameters of secondary power supply system of submerged arc furnace |
-
1992
- 1992-06-19 CN CN 92216225 patent/CN2166395Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680536A (en) * | 2012-06-11 | 2012-09-19 | 西北工业大学 | Vacuum self-electricity-consumption arc furnace molten drop test method based on a silicon-controlled power supply |
| CN102680536B (en) * | 2012-06-11 | 2013-10-09 | 西北工业大学 | Vacuum self-electricity-consumption arc furnace molten drop test method based on a silicon-controlled power supply |
| WO2015192273A1 (en) * | 2014-06-19 | 2015-12-23 | 国家电网公司 | Self-adaptive modeling apparatus for three-phase alternating-current electric arc furnace, and simulation algorithm therefor |
| CN110596441A (en) * | 2019-09-19 | 2019-12-20 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | Voltage diagnostic instrument for movably detecting parameters of secondary power supply system of submerged arc furnace |
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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 |