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Electric Arc Furnace Power Saving Control System

Electric Arc Furnace Power Saving Control System
Power saving:
1) Good tracking performance, electrode adjustment performance (minimizes
current fluctuation)
2) Reduces the impact to electrical network and transformer (by more than 50%)
3) Maintains electrode arc length in optimal range
4) Able to reduce the melting time during the steel smelting process (by more
than 10%)
5) Melting time accounts for about 1/2 of entire smelting time
6) Power consumption during this period of time is 2/3 entire power consumption)
7) Able to adjust the three-phase into balance effectively, reducing overall
power consumption by about 5%
8) Compared with non-intelligent control systems the power consumption per ton
of steel may be dropped by 5 - 30%
Enhanced productivity:
1) Shortened oxidation period (rise in temperature) by more than 5 minutes
(on average)
Improved molten steel quality:
1) Wide range of controls
2) The most advanced optimized electrical curve digital module for
internationally specialized arc furnaces
3) Accurate digital control performance
4) Shortened oxidation period (rise in temperature)
5) High productivity, good quality and low waste
6) Overcomes the problem of accumulated carbon during deoxidization period,
especially remarkable for smelting super low-carbon steel
Low electrode loss: reduced electrode loss (by more than 10%)
Reduced equipment failure rate:
1) Can avoid the electrode breaking when the electrode moves down
2) Electrode can move upward very quickly once there are accidents (such as
3) The response time will be less than 0.175s and the moving speed of the
electrode will be larger than 5m/min
4) Reduces short circuit failure (significantly)
5) Reduces equipment failure rate (more than 50%)
Easy to install, debug, maintain and operate:
1) It only takes 3 hours for the installation and debugging
2) System equipment rebuilds on-site (and then it can run again)
3) Friendly menu operation (real value of arc voltage, arc current and
4) Monitor displays failures on screen, reducing failure maintenance time
5) One-key operation once setting complete, providing a comprehensive solution
for customer to deal with problems such as quality, productivity and power
loss variation in unit time period (caused by human factors)

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