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DC Motors speed synchronization for rolling mills The project aims at designing a system which is capable of synchronizing the speed of the slave motor (motor2) with the master motor (motor1). This system finds very useful in paper mills, steel industries etc..,. The master motor speed can be set
A motor speed control device for a rolling mill, which includes a rolling roll that rolls a metal material, a roll rotation shaft directly connected to the rolling roll, a motor rotation shaft that transmits power to the roll rotation shaft, and a motor that drives the motor rotation shaft, includes: a noncontact type speed sensor arranged at ...
dc motor drive for rolling mill aplication. A DC motor is any of a class of rotary electrical machines that converts direct current electrical The DC motor was the mainstay of electric traction drives on both electric and as toys and disk drives, or in large sizes to operate steel rolling mills and paper This has restricted the practical ...
Jan 23, 2019· 1. Shunt Motors: It is a constant speed the speed is required to remain almost constant from noload to full the load has to be driven at a number of speeds and any one of which is nearly constant. Industrial use: * Lat...
Sprint Electric''s high power 4 quadrant DC Drives provide exceptional motor control up to 980kW in rolling mill applications. Rolling mills are used to reduce the gauge or change the shape of metal, mills can be hot or cold roll. Hot roll mills heat up the metal to a high temperature so that shaping and forming can be easily accomplished.
This is one of the main applications in which dc motors are widely used in fine speed applications such as in rolling mills and in paper mills. High starting torque: dc series motors are termed as best suited drives for electrical traction applications used for driving heavy loads in starting conditions. DC series motors will have a staring ...
Mar 06, 2017· Raymond is quite right. However, I''d like to add that often large induction machines are used with variable frequency drives (VFDs) these days, they have similar speed control, smaller footprint and lower operating costs than machines with slip ri...
ABB drives in metals ABB ACS 6000 rolling mill drive ABB''s ACS 6000 is a modular drive designed for the most demanding singlemotor and multimotor applications in the metals industry. It is available with four sizes of inverter modules (3, 5, 7 and 9 MVA). The optimum configuration for specific applications can be reached by
Small DC motors are used in tools, toys, and appliances. The universal motor can operate on direct current but is a lightweight brushed motor used for portable power tools and appliances. Larger DC motors are currently used in propulsion of electric vehicles, elevator and hoists, and in drives for steel rolling mills.
Rolling mills usually run around the clock, and DC motors may cause downtime and are expensive to maintain such as the continuous need to be machined, and of course, the brushes wear. However, the amount of maintenance on a DC motor, if maintained properly, can be infinitesimal. An advantage of an AC to DC drive or rectifier is the cost.
Understanding Motor and Gearbox Design: Why Spend Time Choosing the Right Motor and Gearbox? Choosing the correct combination of a motor and a gearbox for a given application is very important, both in the FIRST Robotics Competition (FRC) and in actual engineering projects. Without app...
Comital is a rolling mill manufacturing aluminum foil. Located just a few minutes away from the motor factory in Västerås, Sweden. In 2008, Comital changed an LAD 710 from the 70''s to a new DMI 400V. Despite its smaller size, the DMI motor delivers both higher power output (900 kW) and wider speed range ( rpm). DMI DC motor goes ...
Jul 20, 2016· o Rolling is used mainly to produce sheet of metal o or simple cross sections, such as rail tracks. o a drive (motor) for applying power to the rolls and controlling the speed o rolling mills are one of the most demanding applications for motor drives o Typical motor sizes for modern rolling mills is 600kW to 1200kW 5.
High Power(100250 KW)DC drive power panels for steel rolling mill aplication . DC drive control panel with its control pendent is suitable to power. up to 250 KW DC motor drive in closed loop control using a 6 pulse. fully controlled SCR can be Voltage Feed back or. Taco feedback and power output up to a maximum rating of about
China Rolling Mill Dc Motor manufacturers Select 2019 high quality Rolling Mill Dc Motor products in best price from certified Chinese Electric Motor manufacturers, China Motor suppliers, wholesalers and factory on
A variablefrequency drive is a device used in a drive system consisting of the following three main subsystems: AC motor, main drive controller assembly, and drive/operator interface.: 210–211 AC motor. The AC electric motor used in a VFD system is usually threephase induction types of singlephase motors or synchronous motors can be advantageous in some situations, but ...
Motors for rolling mills Choose Category... All References Case Studies Motors for extruders Motors for hazardous areas Motor for conveyors Motors for fans and ventilators Motor for compressors Motors for power plants Crane and hoist drives Mill drives Test field drives Pump drives Motor for shredders and crushers Motors for rolling mills
High Pressure Rolling Mill Crushers . ... fieldproven performance needed for this demanding process application. Read the Motors Pump Case Study; ... to ensure the plant''s operations stayed online during startup and commissioning. Learn more about the motor and drive combination Siemens engineered to meet the rigorous challenge.
Difference Between AC and DC Motors. ... Most DC electric motors today are manufactured to be controlled with industrial electronic DC drives. DC electric motors are still used in many applications across the globe such as paper producing machines, and steel mill rolling machines. Conclusion. DC motors are usually seen in applications where the ...
Mar 09, 2011· DC Drives used in hot steel rolling mill application in Thailand. DC Drives used in hot steel rolling mill application in Thailand. ... DC Drives Used In Hot Rolling Mill SprintElectric. Loading
May 20, 2010· Rolling mill DC motors are best at low speed, high torque applications, while AC motors typically need to run above 800rpm to be cost effective. Also the case for higher efficiency of AC motors is many times negated by the wasteful braking methods of some AC drive systems.
Let''s now observe 12 basic motor types used for different industrial electric drives: DC series and DC shunt motor, compound motor, three phase synchronous ... Home / Technical Articles / 12 Basic Motor Types Used For Industrial Electric Drives. ... continuous rolling mills, ...
DC motors SIMOTICS DC have a compact and modular design and can be used in difficult installation conditions. An extensive range of attachments is available as well as a variety of monitoring and diagnostic options. ... Application areas Lift and cable car drives Rolling mill drives and winders Lifting and running gear drives for cranes ...
Industrial Drives and Applications. ... Electrical drives that use DC motors as the prime mover. Some Inspirational Power Electronics Applications. Introduction to IDA: ... Rolling mill drives, cement mill drives, paper mill dries and textile mill drives. ...
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