CN203800693U - Electric-dazzling prevention device for frequency converter of continuous caster - Google Patents
Electric-dazzling prevention device for frequency converter of continuous caster Download PDFInfo
- Publication number
- CN203800693U CN203800693U CN201420130078.0U CN201420130078U CN203800693U CN 203800693 U CN203800693 U CN 203800693U CN 201420130078 U CN201420130078 U CN 201420130078U CN 203800693 U CN203800693 U CN 203800693U
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- Prior art keywords
- frequency converter
- continuous casting
- casting machine
- dazzling device
- machine according
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- Expired - Lifetime
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- 230000002265 prevention Effects 0.000 title abstract 2
- 238000003860 storage Methods 0.000 claims abstract description 19
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 238000009749 continuous casting Methods 0.000 claims description 27
- 239000002253 acid Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 9
- 230000035939 shock Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000015556 catabolic process Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009885 systemic effect Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Control Of Ac Motors In General (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses an electric-dazzling prevention device for the frequency converter of a continuous caster, which is characterized by comprising a rectifier, a storage battery, an inverter, a control cabinet and a frequency converter. The input end of the rectifier is connected with the phase lines of an AC major loop and a neutral line. The DC output end of the rectifier and the storage battery are connected with the input end of the inverter. The output end of the inverter is connected with the control cabinet. The output end of the control cabinet is connected with the frequency converter. The input end of the frequency converter is connected with the phase lines of the AC major loop. The output end of the frequency converter is connected with a motor. According to the technical scheme of the utility model, the reliability of the electrical system is improved, and the stability of the electrical system is also enhanced.
Description
Technical field
The application of the utility model continuous casting frequency converter voltage shock avoiding technology relates to steel-making electric equipment control technology field, is specifically related to a kind of Anti-electricity dazzling device of frequency converter of continuous casting machine.
Background technology
In steel plant continuous casting electric equipment system, often there will be electric network source momentary fluctuation to cause electric equipment out of service, cause control system paralysis, have a strong impact on rhythm of production and life safety, and cause heavy economic losses.Adopt the application of continuous casting frequency converter voltage shock avoiding technology, after successfully having solved line voltage and occurring momentary fluctuation, systemic breakdown can not start a difficult problem of resuming production voluntarily.Continuous casting frequency converter voltage shock avoiding technology application improved electrical system reliability, strengthened the stability of electrical system, also improved production efficiency simultaneously, reduced breakdown loss, similar system also can be copied transformation, has practicality.
Summary of the invention
The continuous casting electrical system line voltage momentary fluctuation existing for above-mentioned prior art causes equipment out of service, the difficult problem that cannot recover voluntarily, the utility model provides a kind of Anti-electricity dazzling device of frequency converter of continuous casting machine, improved electrical system reliability, strengthened the stability of electrical system.
The problem existing for solving above-mentioned prior art, the technical scheme that the utility model voltage shock avoiding technology is taked is: the Anti-electricity dazzling device of frequency converter of continuous casting machine, it is characterized in that: comprise rectifier, storage battery, inverter, control cubicle (PLC) and frequency converter, the input of rectifier connects ac main circuit phase line and the neutral line, direct current place output and storage battery all connect inverter input terminal, described inverter output end connects control cubicle, described control cubicle output is connected with frequency converter, described frequency converter input is also connected with ac main circuit phase line, described inverter output terminal is connected with motor.
Further, described motor is threephase motor.
Further, between described inverter and control cubicle, control switch is housed.
Further, described control switch is automatic air-break switch.
Further, between described rectifier input and ac main circuit phase line and the neutral line, switch is housed.
Further, described switch is automatic control switch.
Further, between described threephase motor and frequency converter, be also connected with emergency stop switch.
Further, described frequency converter is Siemens's frequency converter.
Further, described storage battery is sealed lead acid storage battery.
The Anti-electricity dazzling device of frequency converter of continuous casting machine described in the utility model, continuous casting installation for casting adopts Frequency Converter Control power dragging apparatus motor, pass through rectifier, storage battery and inverter, can be PLC power supply is provided, by output, PLC controls enabling of frequency converter, crawl, rotating, the functions such as high low speed, by extending the frequency converter magnetic flux given filtering time, realizing frequency converter seizure restarts, when there is fluctuation in electrical network or shakes electricity, be that system line voltage is while occurring momentary fluctuation, switch in time storage source and provide uninterrupted power supply to PLC system, assurance PLC control signal is not lost in rolling electric process, by parameter, arrange and trigger frequency converter seizure restart facility, make frequency converter automatically restore to normal operating condition, guarantee to produce and do not interrupt.The utility model utilizes the characteristic of being powered by storage battery inversion after power-off, for PLC provides reliable alternating current 220V power supply, guarantees that output signal do not lose.
The beneficial effects of the utility model are: adopt the application of continuous casting frequency converter voltage shock avoiding technology, after successfully having solved line voltage and occurring momentary fluctuation, systemic breakdown can not start a difficult problem of resuming production voluntarily.Continuous casting frequency converter voltage shock avoiding technology application improved electrical system reliability, strengthened the stability of electrical system, also improved production efficiency simultaneously, reduced breakdown loss.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model voltage shock avoiding technique device.
Embodiment
Below by instantiation, to the utility model continuous casting frequency converter voltage shock avoiding technology, application is described in further detail.
Embodiment 1
The Anti-electricity dazzling device of frequency converter of continuous casting machine as shown in Figure 1, it is characterized in that: comprise rectifier UR, storage battery, inverter UI, control cubicle PLC and frequency converter UF, the input of rectifier UR connects ac main circuit phase line L3 and neutral line N, direct current place output and storage battery all connect inverter UI input, described inverter UI output connects control cubicle PLC, described control cubicle PLC output is connected with frequency converter UF, described frequency converter UF input is also connected with L3 with ac main circuit phase line L1, L2, and described frequency converter UF output is connected with threephase motor M.
Embodiment 2
The Anti-electricity dazzling device of frequency converter of continuous casting machine as shown in Figure 1, it is characterized in that: comprise rectifier UR, storage battery, inverter UI, control cubicle PLC and frequency converter UF, the input of rectifier UR connects ac main circuit phase line L3 and neutral line N by automatic control switch QF1, direct current place output and storage battery all connect inverter UI input, described inverter UI output connects control cubicle PLC by automatic air-break switch QF2, described control cubicle PLC output is connected with frequency converter UF, described frequency converter UF input also with ac main circuit phase line L1, L2 is connected with L3, described frequency converter UF output is connected with threephase motor M.
Embodiment 3
The Anti-electricity dazzling device of frequency converter of continuous casting machine as shown in Figure 1, it is characterized in that: comprise rectifier UR, sealed lead acid storage battery, inverter UI, control cubicle PLCHe Siemens frequency converter UF, the input of rectifier UR connects ac main circuit phase line L3 and neutral line N by automatic control switch QF1, direct current place output and storage battery all connect inverter UI input, described inverter UI output connects control cubicle PLC by automatic air-break switch QF2, described control cubicle PLC output is connected with frequency converter UF, described frequency converter UF input also with ac main circuit phase line L1, L2 is connected with L3, described frequency converter UF output is connected with threephase motor M.Between described threephase motor and frequency converter UF, be also connected with emergency stop switch.
Claims (10)
1. the Anti-electricity dazzling device of frequency converter of continuous casting machine, it is characterized in that: comprise rectifier, storage battery, inverter, control cubicle and frequency converter, the input of rectifier connects ac main circuit phase line and the neutral line, direct current place output and storage battery all connect inverter input terminal, described inverter output end connects control cubicle, described control cubicle output is connected with frequency converter, and described frequency converter input is also connected with ac main circuit phase line, and described inverter output terminal is connected with motor.
2. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 1, is characterized in that: described motor is threephase motor.
3. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 1 and 2, is characterized in that: between described inverter and control cubicle, control switch is housed.
4. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 3, is characterized in that: described control switch is automatic air-break switch.
5. according to the Anti-electricity dazzling device of the frequency converter of continuous casting machine described in claim 1 or 2 or 4, it is characterized in that: between described rectifier input and ac main circuit phase line and the neutral line, switch is housed.
6. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 5, is characterized in that: described switch is automatic control switch.
7. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 1 and 2, is characterized in that: between described threephase motor and frequency converter, be also connected with emergency stop switch.
8. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 5, is characterized in that: between described threephase motor and frequency converter, be also connected with emergency stop switch.
9. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 1 and 2, is characterized in that: described frequency converter is Siemens's frequency converter.
10. the Anti-electricity dazzling device of frequency converter of continuous casting machine according to claim 1 and 2, is characterized in that: described storage battery is sealed lead acid storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130078.0U CN203800693U (en) | 2014-03-21 | 2014-03-21 | Electric-dazzling prevention device for frequency converter of continuous caster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420130078.0U CN203800693U (en) | 2014-03-21 | 2014-03-21 | Electric-dazzling prevention device for frequency converter of continuous caster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800693U true CN203800693U (en) | 2014-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420130078.0U Expired - Lifetime CN203800693U (en) | 2014-03-21 | 2014-03-21 | Electric-dazzling prevention device for frequency converter of continuous caster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928979A (en) * | 2014-03-21 | 2014-07-16 | 江苏永钢集团有限公司 | Voltage sag preventing device for continuous casting machine frequency converter |
-
2014
- 2014-03-21 CN CN201420130078.0U patent/CN203800693U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928979A (en) * | 2014-03-21 | 2014-07-16 | 江苏永钢集团有限公司 | Voltage sag preventing device for continuous casting machine frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140827 |