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Wound rotor motor mill drives

BALL MILL DRIVE MOTOR CHOICES - Hitlers Hollywood

BALL MILL DRIVE MOTOR CHOICES - Hitlers Hollywood

ball mill liquid rotor starter. A WOUND ROTOR MOTOR WITH POWER FACTOR CORRECTION CAPACITORS This is the most economical choice on a first cost basis This solution meets the requirements of all gear trains on the market for ball mills With this type of drive arrangement the acceleration time will be controlled by the ramp control used in the liquid rheostat

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Variable-frequency drive - Wikipedia

Variable-frequency drive - Wikipedia

Wound-rotor synchronous motors can be run at even higher speeds. In rolling mill drives, often 200-300% of the base speed is used. The mechanical strength of the rotor limits the maximum speed of the motor. Fig. 1: SPWM carrier-sine input & 2-level PWM output.

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Wound Rotor Motor: What is it? - Motion Control Tips

Wound Rotor Motor: What is it? - Motion Control Tips

Jul 17, 2017 · 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 are permanently short-circuited by an end ring.

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Shredders for Sale - K2 Castings

Shredders for Sale - K2 Castings

The primary drive is a 5000 HP (3730 KW) A/C Wound Rotor Motor. The hard charging Schorch motor keeps churning day after day. Dual axial pole magnets, cyclone air cleaning system, and split picking station allow for extremely clean and dense ferrous scrap. Slip Power Recovery Drive is included. Motor rotor current is managed in a switchable .

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3000 HP | East Coast Electrical Motor Inventory

3000 HP | East Coast Electrical Motor Inventory

AC Slip Ring/Wound Rotor Motors. AC Synchronous Motors. AC Vertical Motors. DC Motors. Full Voltage Starters. Reduced Voltage Starters. Variable Frequency Drives. Products. New Squirrel Cage Motors. Products. New Siemens Variable Frequency Drives. New Motortronics Soft Start Medium Voltage. Rebuilt Electric Motors. Large Electric Motors. Our .

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rotor use for motor cement ball mill

rotor use for motor cement ball mill

why it is used wound rotor motor in cement mills. ball mill drive motor choices Artec Machine Systems This study began with a decision by The Monarch Cement Company to add a new cement finish mill to their plant in Drive 1 A 5000 HP 1200 rpm wound rotor motor with liquid rheostat and power factor correction The mill used for this comparison is .

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Auto Shredding | Quad Plus

Auto Shredding | Quad Plus

Another important advantage over squirrel-cage motors is higher starting torque. A wound rotor induction motor can be used in several forms of adjustable-speed drive. Certain types of variable-speed drives recover slip-frequency power from the rotor circuit and feed it back to the supply, allowing wide speed range with high energy efficiency.

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SAG Mill Components - Mineral Processing & Metallurgy

SAG Mill Components - Mineral Processing & Metallurgy

The use of wound rotor motors also provides for a low inrush situation, if the power system study demands it, and makes mill speed variation possible. This variation comes generally at a sace in motor efficiency because the reduced power demand from the mill is lost in the speed control circuit.

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Slip ring Induction Motor Fundamentals - pnpntransistor

Slip ring Induction Motor Fundamentals - pnpntransistor

Slip ring Induction motor is also known as wound rotor induction motor. Slip ring motor has main two parts as we know: Stator and Rotor. The stationary part of the motor is called stator and rotary part of the motor is called rotor. The works of the stator is common in all motor to develop a magnetic field.

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The Motor Specialist - Motion Industries

The Motor Specialist - Motion Industries

The use of variable frequency controls and slip power recovery drive systems regulates the speed of motors connected to water, slurry, and sewer pumps. Grinding mills in mining operations, steel mill drives, and large presses also use slip-ring induction motors that begin processing with a heavy load.

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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS .

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS .

Motor The GMD is a drive system without any gear where the transmission of the torque between the motor and the mill is done through the magnetic field in the air gap between the motor stator and the motor rotor. The concept to drive the mill this way is relatively simple using the mill body as motor rotor and mounting the poles there.

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Electrical Equipment Company Specializes in Electric Motors

Electrical Equipment Company Specializes in Electric Motors

We have the largest inventory in the world composed of 100 to 20,000 HP AC electric motors in wound rotor, squirrel cage, synchronous, vertical, and D.C.

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HV Wound Rotor Induction Motors | Power Conversion

HV Wound Rotor Induction Motors | Power Conversion

The wound rotor induction motor has some distinct application advantages. Historically, it has been used for hard-to-start, high inertia fans, or where power system requirements demand a soft start. With a liquid rheostat, or a static secondary speed control, the wound rotor is an important alternative drive where limited range adjustable speed is required.

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Use of variable frequency drives with wound rotor motors .

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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vfd on slip ring

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. . We have sent the motor to our motor guy to refurbish and interconnect the rotor windings.Is there any advice or similar applications out there that could be helpful .

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Use of variable frequency drives with wound rotor motors .

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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Wound Rotor Induction Motors and Starters

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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Induction Motor Drives - Circuit Globe

Induction Motor Drives - Circuit Globe

The induction motor drive has many applications like it is used in fans, blowers, mill run-out tables, cranes conveyers, traction, etc. The induction motor drive is self-starting, or we can say when the supply is given to the motor, it starts rotating without any external supply.

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Auto Shredding | Quad Plus

Auto Shredding | Quad Plus

Another important advantage over squirrel-cage motors is higher starting torque. A wound rotor induction motor can be used in several forms of adjustable-speed drive. Certain types of variable-speed drives recover slip-frequency power from the rotor circuit and feed it back to the supply, allowing wide speed range with high energy efficiency.

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Infrastructure - Systems and solutions | ABB

Infrastructure - Systems and solutions | ABB

We have solutions for all motors and drives cement applications: LV & MV squirrel cage motors LV - frequency converters-- Single drive up to 2800 kW-- Multi drive up to 5600 kW MV - frequency converters 315 kW up to 27000 kW Direct Torque Control (DTC) Converter transformers DC drives (new & revamping) Slipring motors (wound rotor induction motors)

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Used MOTORS, A.C., SLIP RING, 60 CYCLE (Wound Rotor) For .

Used MOTORS, A.C., SLIP RING, 60 CYCLE (Wound Rotor) For .

Mar 22, 2020 · Motors, A.C., Slip Ring, 60 Cycle General Electric, Westinghouse, Allis-Chalmers, Toshiba, Asea, Reliance

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Electric Drives - AC Motors - Description and Applications

Electric Drives - AC Motors - Description and Applications

Electric Drives - AC Motors (Description and Applications) . Wound Rotor Induction Motor. Now of historic interest only, these motors were designed to permit control of the speed - torque characteristics of the machine. They used conventional windings on the rotor which were accessible through slip rings. The rotor windings were not connected .

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Torque Capabilities of DC and AC Drives in the Constant .

Torque Capabilities of DC and AC Drives in the Constant .

the rotor control resistors. To use a wound rotor motor as an adjustable speed drive, the rotor control resistors must be rated for continuous current. If the motor is used only for a slow acceleration or high starting torque but then operates at its maximum speed for the duration of the work cycle, then the resistors will be removed from the .

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Wound Rotor Induction Motor - The Engineering Projects

Wound Rotor Induction Motor - The Engineering Projects

Oct 10, 2016 · Wound Rotor Induction Motor is used in applications which require smooth start and adjustable speed. Some of the applications of this motor include cranes, mills, hoists and conveyors. Wound rotor induction motor is also used in fans, blowers and mixers.

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Changing wound rotor drive with VFD - Entries - Forum .

Changing wound rotor drive with VFD - Entries - Forum .

Dear all, i have task to change two motor drives of wound rotor type with new VFD drives, data about old drives is given in atachments, i need some sugestions which drives should be .

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Mineral Processing | Toshiba International Corporation .

Mineral Processing | Toshiba International Corporation .

Application: Ball Mill Equipment: 1 x 44000kW 30 pole 6600 volt Synchronous Motor Location: Kalgoorlie, Western Australia Ernest Henry Mine Application: 1 x 11000kW SAG Mill driven by Dual 5500kW motors, 1 x 5500kW Ball Mill Equipment: 3 x 5500kW 6 pole 11000 volt Wound Rotor Induction Motors Location: Cloncurry, Queensland

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Wound Rotor Induction Motors | AC Motors | Electronics .

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 .

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Wound Rotor Induction Motors and Starters

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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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS .

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS .

Motor The GMD is a drive system without any gear where the transmission of the torque between the motor and the mill is done through the magnetic field in the air gap between the motor stator and the motor rotor. The concept to drive the mill this way is relatively simple using the mill body as motor rotor and mounting the poles there.

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Induction Motor - an overview | ScienceDirect Topics

Induction Motor - an overview | ScienceDirect Topics

Wound-rotor Induction. Common in Australia and Africa, the wound-rotor motor also uses a gear system to transmit energy to the mill. It operates at a higher motor speed than the synchronous motor and needs an additional mechanical gear-box to reduce the motor shaft speed to the pinion speed needed to drive the mill.

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