Wound Rotor Motor Mill Drives

Wound Rotor Motor Mill Drives

Ball Mill Drives - Mineral Processing & Metallurgy

Several types of ball mill drives can be furnished, made up of various combinations of gearing, motors and transmission equipment. The correct combination to be selected takes into consideration power requirements, gear ratings, floor space, interference from other plant equipment and motor characteristics. The main types are described and illustrated on these pages.

wound rotor motor mill drives - aadvanderzwan.nl

wound rotor motor mill drives; Speed control of induction motor (7 ways to control , Speed control of induction motor by 7 ways Today I will discuss very important topic , speed control of induction motorThe speed of a three-phase induction motor driving a given load is determined by matching the torque-speed characteristics of the motor and ...

Wound rotor motor - Wikipedia

A wound-rotor motor is a type of induction motor where the rotor windings are connected through slip rings to external resistance. Adjusting the resistance allows control of the speed/torque characteristic of the motor. Wound-rotor motors can be started with low inrush current, by inserting high resistance into the rotor circuit; as the motor accelerates, the resistance can be decreased.

Wound Rotor Induction Motor - The Engineering Projects

Oct 10, 2016 · A Wound Rotor Induction Motor is also known as slip ring induction motor. I will tell you about the construction of Wound Rotor Induction Motor in the first section. In the second section, I would be throwing light on the operation and working principle of Wound Rotor Induction Motor.

What We Do: Drives

Mill inching drives; Conveyor creep drives. Cycloconverters eliminate the need for external switching to control the magnetic field as a current’s polarity changes. Commonly used for low-speed reversible high-power motor drives, cycloconverters generate inter-harmonic currents to reduce network disturbances and voltage distortion.

Used Wound Rotor Motors for sale. liming equipment & more ...

Used wound rotor motors - 34 listings. Sort by Price: Low to High ... Hardinge Koppers SAG Mill 6800 HP (5100 kW) Two GE wound rotor induction motors: - 3400 HP - 710 RPM - 4000 V - Includes motor starter. - Includes lube system and temperature sensors. ... two doors, good flanges - 2700 kw, 745 RPM slipring (wound rotor) motor, including drive ...

BALL MILL DRIVE MOTOR CHOICES - Artec Machine Systems

the wound rotor motor was preferred. In the late 1950s, when mills approached 2500 HP, the center drive mill arrangement with the enclosed geared drive using a high-speed synchronous motor became quite popular. In more recent times the wound rotor motor with the liquid rheostat has come into use in

Wound Rotor Induction Motors | AC Motors | Electronics ...

A wound rotor induction motor has a stator like a squirrel cage induction motor, but a rotor with insulated windings brought out via slip rings and brushes. However, no power is applied to the slip rings. Their sole purpose is to allow resistance to be placed in series with the rotor windings while ...

vfd on slip ring "wound rotor" motors - Variable Speed ...

Feb 07, 2008 · vfd on slip ring "wound rotor" motors - posted in Variable Speed Drives: I am involved in converting a ball mill , which requires a large amount of starting torque, from a slip ring motor driven application to a vfd driven appl. .

Specialty Products and Services | Benshaw Advanced ...

Wound Rotor Motor Starters. ... Benshaw has successfully applied a 480VAC 700HP AC Variable Frequency Drive for positioning a MV synchronous motor driven ball mill. The Benshaw variable frequency drive powers the 4160Volt - 3500HP synchronous ball mill motor during positioning to smoothly rotate the ball mill and bring it to the proper position ...

MOTOR TECHNOLOGY Saving energy - TMEIC

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 …

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL …

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL DRIVES FOR GRINDING APPLICATIONS M. Ahrens, ABB, ... Options for variable speed are DC motors, energy recovery systems for wound rotor motors and frequency converter drives. ... the motor rotor. The concept to drive the mill this way is relatively

Whats the Difference? - LittleMachineShop.com

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 …

Torque Capabilities of DC and AC Drives in the Constant ...

Torque Capabilities of DC and AC Drives in the Constant Horsepower Range Using a Wound Rotor Motor Replacement as a Typical Application Example ... To use a wound rotor motor as an adjustable speed drive, the rotor control resistors must be rated for continuous current. If the motor …

wound rotor motor mill drives - vakantievillavaucluse.nl

ball mill drive motor choices - Artec Machine Systems. ball mills, the starting torque restrictions of some of the newer mill drive ... Drive 1 - A 5000 HP, 1200 rpm wound rotor motor with liquid rheostat and power factor. Get Price

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 ...

Wound Rotor Motor - up to 75% OFF - discount99.us

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