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Wound Rotor Motor Mill Drives

  • 75kW Wound Rotor Control For Steel Rolling Mill

    MCW were asked to produce a control system for 75kW slip ring fed wound rotor induction motor that was being used to drive a steel rolling mill via a Radicon gearbox At the heart of the system MCW used the Fairford Synergy intelligent soft starter to provide a controlled soft start and soft stop for the motor.

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  • PDF Vector Controlled Double Inverter Fed Wound Rotor

    1058 IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS VOL 35 NO 5 SEPTEMBER/OCTOBER 1999 Vector Controlled Double Inverter Fed Wound Rotor Induction Motor Suitable for High Power Drives Yoshitaka Kawabata Associate Member IEEE Emenike Ejiogu Associate Member IEEE and Takao Kawabata Member IEEE Abstract In this paper the principle

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  • High voltage motors for mills More for mining

    is currently the gearless mill drive GMD In GMD systems the motor s poles are directly installed on a pole flange on the mill shell and the body of the mill itself becomes the rotor Ring geared mill drive For mills with standard diameters or requiring less than 20 MW approx of power ring geared mill drives RMDs offer the best solution.

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  • Delta Electric Motors

    Electric Motor Repair Services UL Hazardous Location Recertification NEMA Frame Motors and above Fractional to over 10 000 horsepower Synchronous Motors Wound Rotor Motors Vertical Motors Subemersible Pumps MG Sets Armatures DC Traction and Mill Motors Marine Propulsion Hydro and Wind Generators Axial Cooling Fans Root Cause

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  • What s the Difference LittleMachineShop

    HiTorque Drive System The SIEG drive on the mini lathe and mini mill incorporates a 350 Watt conventional wound rotor DC motor and PWM controller card The gears provide two speed ranges to enhance low speed torque because the output torque of a DC drive like this falls off as the motor

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  • wound rotor motor mill drives saudi arabia

    Wound Rotor Motor Mill Drives kpjlangeveennl wound rotor motor mill drives saudi arabia Wound rotor motor Wikipedia So we are able to control the speed of this type of motor easily A woundrotor motor can be used in several forms of adjustablespeed drive Certain types of variablespeed drives recover slipfrequency power from the rotor circuit and feed it

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  • Motor with slip ringAll industrial manufacturers

    AC motor FTC 560K6 asynchronous 690 V with slip ring AC motor FTC 560K6 Power 500 kW2 500 kW raw and cement ball mill twin drives Slip Ring or other wound type rotor motors are used all over the world CG Hungary is the first in the world to successfully break this tradition

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  • PDF Dual Mode Wound Rotor Synchronous Machine for

    Jul 30 2021  This paper presents a novel dual mode wound rotor synchronous machine DWRSM for variable speed applications The proposed machine combines the advantages of both the conventional wound rotor

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  • 100 Most Important MCQ On Electric Drive Industrial

    Feb 27 2021  Rolling mill requires high power motor generally dc motor and slip ring induction motor of multi kilowatt above 100 H.P motor is preferred According to the survey of ROLLING MILLS IN RAIPUR The normal sizes of electric motors range from 400 H.P to 1000 H.P the

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  • Slip Energy Recovery Drives SER Australia CSE Uniserve

    The CSE Uniserve Rotor Drive Slip Energy Recover System SER is designed for speed control of wound rotor induction motors Typical applications include mills crushers fans and pumps Designed and manufactured in Europe to CSE Uniserve s specifications offers the ultimate in single or dual motor

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  • Slip ring motors up to 8000 kW 13800 V

    MENZEL slip ring motors also called wound rotor motors are available in all current motor cooling and protection types for low voltage from 75 kW as well as medium and high voltage up to 15000 kW For operation in mill drives slip ring motors also have a major advantage because they can provide full start up torque out of a locked rotor

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  • Autogenous mills semi autogenous mills and ball mills for

    the mill shell Drive motors In the case of ring gear drives either wound rotor induction motors or synchronous motors can be used Induction motors Wound rotor induction motors are usually equipped with starters for a controlled ramp up of mill speed with modest inrush currents Motor speeds usually require the appli cation of a speed reducer.

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  • Ball Mill DrivesMineral Processing Metallurgy

    Oct 22 2016  DIRECT CONNECTED Ball Mill DRIVE When power exceeds 300 HP a direct connected drive is recommended This drive is also applicable for lower power requirements if desired Synchronous motors are preferred but in some cases wound rotor motors may be used Motor speeds will vary from 225 rpm to 450 rpm.

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  • Comparing DC AC Wound Rotor Shredder DrivesRecycling

    Oct 25 2004  AC wound rotor drives are probably the best choice for super shredders but DC Drives are a cost effective alternative for systems of 5000 hp and below Joseph Crosetto The author is is a Sales Engineer for Quad Plus Inc Quad Plus Inc is an engineering and system integration company specializing in DC Shredder Drives and Automation.

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  • TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

    systems for wound rotor motors and frequency converter drives Improvements in power electronics technology and controls have resulted in variable frequency converters that offer high efficiency high reliability and availability at competitive cost The first Gearless Mill Drive

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  • MOTOR TECHNOLOGY Saving energyTMEIC

    Figure 4 typical SAG mill motor drive equipment Since such drives Figure 3 one of two wound rotor motors for a 10 000kW SAG mill ICR SEPTEMBER 2009 are in volume production at this time support should be available for years to come Getting renewal parts for older thyristor based SPR drive

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  • Synchronous motor driveSlideShare

    Jan 29 2013  1 synchronous motor drive 2 Wound field motor a cylindrical rotor wound field motor b salient pole rotor wound field motor Permanent magnet motor Synchronous reluctance motor Hysteresis motor 3 Modes of adjustable frequency control i Open loop volts/HZ control or separate cotrolled or true synchronous mode ii self controlled mode.

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  • Mineral Processing Toshiba International Corporation

    Slurry Pump Drives Conveyor Drives Examples of completed projects include Windimurra Vanadium Mine Project Windimurra Vandium Mine Application Ball Mill Equipment 1 x 5500kW 6 Pole 11000 volt Wound Rotor Induction Motor Location Mount Magnet Western Australia Kalgoorlie Consolidated Gold Mine Application Ball Mill

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  • WE KEEP ELECTRIC MOTORS AND GENERATORS RUNNING

    Specialty Motor Repair Wound rotor AC Motor/Generator sets AC generator rewinds Hermetic Submersible Vertical Mill duty Annealing furnace fan motors Synchronous brush and brushless Traction Navy and Marine Wheel drive Explosion proof Variable speed High efficiency AC

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  • Wound Rotor Induction Motors and Starters

    Since the slip of an induction motor increases as the rotor resistance increases some speed control is possible using a wound rotor motor and varying the rotor resistance while running Controllers for wound rotor motors include for the stator the same protection and switching functions that are used for squirrel cage motors For the rotor a

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  • TMdrive 10SPR Product Application Guide

    This variable speed drive application is a dual pinion SAG mill driven by two 5 000 kW wound rotor induction motors Two TMdrive 10SPRs control motor speed by recovering rotor current

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  • Western MontanaK N Electric Motors

    From small process motors to giant ball and rod mill drive motors we can offer repair and engineering services for AC DC Synchronous and Wound Rotor designs K N Missoula has the unique ability to repair the motors and also rebuild much of the mechanical equipment on

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  • Use of variable frequency drives with wound rotor motors

    Jim McKee deceased Alabama Electric Motor Service Sheffield Alabama Technical Education Committee Member The slip ring or wound rotor induction motor WRIM has been used in a variety of applications Many of these applications use the WRIM s high starting torque capabil­ity while limiting current to start and run very high inertia loads such as hammer mills rolling mills centri­fuges

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  • MiningTECO Westinghouse Industry

    Our induction wound rotor and synchronous motors process and intelligent controls and motor controls deliver the performance that s expected within the smallest package possible Complete product line of motors and drives Suitable for SAG and ball mills conveyors crushers grinders and more Westinghouse legacy driven by TECO

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  • Wound Rotor Motor What is it Motion Control Tips

    Jul 17 2017  Wound rotor motors are also referred to as slip ring motors The stator of a wound rotor motor is the same as a typical induction motor but the rotor has a three phase winding with each of the winding terminals connected to separate slip rings In contrast a traditional induction motor aka squirrel cage motor has windings that

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  • Wound Rotor Induction Motor AC Low Voltage Induction

    For KCW 560 Stator Rotor Terminal box rotatable through 3600 in steps of 180° i.e cable entry possible from top or buttom Bearing life 90 survival basis Lithium based grease to Grade 3 as per IS 7623 for 4 pole above motors Lubricant Direct drives 40 000 working hours Based on 90 survival life

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  • AC Drives 4 Speed Control of wound rotor Induction Motor

    Click to view on Bing22 42

    Jun 02 2021  https //drive.google/file/d/1F10dwp6Xc eKdTuZzdtzkDdbbR0RLa7p/view usp=sharing

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  • ELECTRICAL ENGINEERING IMPORTANT MCQ INDUSTRIAL DRIVERS

    Oct 28 2016  a Conveyor motor b Floor mill motor c Fan motor d All of the above Ans d 5 is preferred for automatic drives a Squirrel cage induction motor b Synchronous motors c Ward Leonard controlled D.C motors d Any of the above Ans c 6 When the load is above a synchronous motor is found to be more economical.

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  • Wound Rotor Motor Mill DrivesFact Jeugd Noord

    Wound Rotor Motor Mill Drives A wrim is a type of induction motor with unique construction in the cement and mining industry for starting and driving large grinding mills in fact until about 1985 a wound rotor induction motor was the motors on grinding mills slip power recovery drives have been applied in other industries such as in municipal chat online.

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  • Drive Solutions for the Global Mining Industry

    drive application is a dual pinion SAG mill driven by two 5 000 kW wound rotor induction motors WRIM Two TMdrive 10SPRs control motor speed by recovering rotor current and returning the power to the utility supply.

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  • LCI S AND SYNCHRONOUS MOTORS APPLIED TO ROLLER

    asynchronous and synchronous motors have been utilized Many mills are powered by wound rotor induction motors WRIM with some form of secondary control A benefit associated with variable secondary resistance for a wound rotor induction motor is the reduction in starting current This can be

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  • MOTORS 208stevensdrives

    Vertical Pump Motors Induction and wound rotor BROCHURE Pump Motors horizontal S ingle three phase pump motors in closed coupled fire jet oil well p base pool spa Crusher Duty Motors Crusher Duty W22 motors are specifically designed to meet the demanding requirements of the rock crushing industry.

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  • Advantages of SER drives for SAG mills GoHz

    Dec 19 2014  Advantages of SER drives for SAG mills Friday December 19 2014 For large mills requiring variable speed the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW Above 16MW the gearless drive cyclo converter is typically used because gearboxes and pinion gears reach their present limit in size.

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  • Electrical Drives Questions and Answersyour electrical

    21 Which of the following motor is usually preferred for kiln drives a Cascade controlled A.C motor b Slip ring induction motor c Three phase shunt wound commutator motor d Any of the above

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  • The effect of voltage dips on wound rotor induction motors

    rotor windings and the external rotor resistors 6 SER is an alternative approach to induction motor speed control Modern SER drives consist of back to back voltage source converters which are positioned in the rotor circuit of a wound rotor induction motor Figure 2 These converters decouple the mechanical and electrical rotor

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  • Use of wound rotor motor with VFD Automation Control

    Aug 14 2003  Wound rotor motors typically are high torque high slip motors They have starting torque ratings about double standard motors and VFDs typically limit the starting current and torque Older motors may not stand up to the high voltage spikes generated by the switching devices in the VFD The secondary resistors with contactors are extreemly

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  • Medium Voltage VSDs in mill drive applications

    Ac Squirrel cage motors draw around 500 to 900 of Full Load Current FLC during starting This might not pose a huge concern when starting motors with low kilowatt kW ratings but as soon as one starts talking about mill drive applications where the installed motors are generally in the range of 800 kW up to 15 000 kW it does become a concern.

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  • Motors and drives perform critical service throughout any

    Toshiba products for the mining and minerals industry include induction wound rotor and synchronous motors UPS process and intelligent controls motor controls and power distribution protection solutions The company reported that it has supplied mining operations throughout North America and South America as well as in Australia.

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  • Power Electronics And Motor Drives ScienceDirect

    Occasionally wound rotor machines are also used in the high power range with slip power recovery control Static Kramer and Static Scherbius drives have been used in industry for limited range speed control near the synchronous speed A variable frequency single phase motor drive is difficult to achieve because of its large pulsating torque.

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  • Synchronous motor drive for rubber mills With special

    Synchronous motor drive for rubber mills With special reference to dynamic braking control for safety stopping Abstract Since wound rotor induction motors with clutch brakes have been very commonly used for this application a review of the operating conditions and safety requirements is given in order to show why synchronous motors without

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  • RewindK N Electric Motors

    All motors and generators serviced including induction synchronous wound rotor DC explosion proof hermetic and large submersibles Recent accomplishments Complete rewind of a 3 500 HP DC mill drive motor for a large steel mill including having special trapezoidal wire manufactured

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