What is Static Scherbius Drive? Meaning and Explanation ...

Static Scherbius Drive The Static Scherbius Drive provides the speed control of a wound rotor motor below synchronous speed. The portion of rotor AC power is converted into DC by a diode bridge. The controlled rectifier works as an inverter and converts the DC power back into AC and feeds it …

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Series 5 - Drive Technology - Siemens

As a result of their modular design, the 1R.5 slipring rotor motors (US: wound-rotor motors) can be produced with various cooling systems. This means that the motors can be flexibly adapted to the customers's application.

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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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liquid rotor starter for ball mill - YouTube

 · This video is unavailable. Watch Queue Queue. Watch Queue Queue

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Wound Rotor Induction Motor, AC Low Voltage Induction ...

KECL Manufacture of wound rotor induction motors with Low Voltage, Rerolling Mill Duty Motor, Non corrosive & non hazardous in nature. ... Left hand side when viewed from non-drive end, reversible assembly at site is not possible. Terminal box arrangement: For KCW 450 & 500: Stator – 43506201, Rotor – 43521599. ...

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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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Wound-Rotor Motors — High Torque and Adjustable Speed ...

Wound-rotor motors deliver speed control of heavy and high-torque loads.What's special about the wound-rotor motor? This type of phase induction motor has high starting torque, which makes it ideal for applications where standard NEMA design motors fall short. The wound-rotor motor is particularly effective in applications where using a squirrel-cage motor may result in a

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Slip ring motors - menzel-motors.com

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. They set technical standards in terms of size, performance, economy and reliability.

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Induction Motor Drives - Circuit Globe

Induction Motor Drives For variable speed applications, the DC motor drives are used in the past. But this motor has several disadvantages like the presence of commutator and brushes due to which frequent maintenance is required. This problem is overcome by the variable speed induction motor drive.

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LCI'S AND SYNCHRONOUS MOTORS APPLIED TO ROLLER …

With a variable speed grinding table drive, every newly commissioned roller mill could be set to it's optimum speed, the speed could be adjusted at any time to suit different mill feeds, and when the mill is ... Finally, the last evaluated control of wound rotor motors uses a solid-state slip energy recovery system as shown in Figure 2, curve A ...

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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 ...

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EUCLID - rowlandcrane.com

AC Magnetic Motor Controls Euclid AC controllers are for use with new or existing wound rotor or squirrel cage motor drives. Depending on model and type, they are ideal for motor primary or secondary controls, eddy current brake hoists, counter torque hoists, lift bridges and other large machines.

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Understanding Electronic Motor Drives | Machine Design

Matching drive to motor is essential to gain the best ... The rotor and stator work through magnetic interaction. ... and resulting horsepower of a motor. Dc drives typically control a shunt-wound ...

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Can a VFD run a wound-rotor motor? - Schneider Electric

Most wound-rotor motors are used where high starting torque is required so an Altivar 312, Altivar 32 or Altivar 71 drive would be most suitable for this application. The wound-rotor motors use resistor to connect the rotor windings. The resistance can be adjusted to control the speed/torque characteristis of the motor. To use a variable ...

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Ring gear drives huge grinding mill | Machine Design

In a ring-motor drive, Figure 4, a ringshaped motor encircles the mill and drives it directly without gears. The motor consists of rotating rotor elements (poles) that are bolted to the mill shell ...

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Use of variable frequency drives with wound rotor motors ...

Use of variable frequency drives with wound rotor motors. Publication date: October 2004. Author(s): Jim McKee (deceased), Alabama Electric Motor Service. Type of media: Article. 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 ...

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High voltage motors for mills More for mining

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. Three of the most common drive types for RMDs are low speed motors without a gearbox, high speed motors with a reduction gearbox, and ...

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What's 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 …

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Very old antique General Electric GE Wound-Rotor Induction ...

 · This motor is a very old example of an induction motor. it has been granted retirement from active duty and is only run for show-and-tell now. Very …

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BALL MILL DRIVE MOTOR CHOICES - artec-machine.com

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

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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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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

 · 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.

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Slip ring motors - menzel-motors.com

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. They set technical standards in terms of size, performance, economy and reliability.

[Get Price]
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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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.

[Get Price]
What is Static Scherbius Drive? Meaning and Explanation ...

Static Scherbius Drive The Static Scherbius Drive provides the speed control of a wound rotor motor below synchronous speed. The portion of rotor AC power is converted into DC by a diode bridge. The controlled rectifier works as an inverter and converts the DC power back into AC and feeds it …

[Get Price]
Wound Rotor Induction Motor, AC Low Voltage Induction ...

KECL Manufacture of wound rotor induction motors with Low Voltage, Rerolling Mill Duty Motor, Non corrosive & non hazardous in nature. ... Left hand side when viewed from non-drive end, reversible assembly at site is not possible. Terminal box arrangement: For KCW 450 & 500: Stator – 43506201, Rotor – 43521599. ...

[Get Price]
SAG Mill Components - 911metallurgist.com

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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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 p volt Wound Rotor Induction Motors Location: Cloncurry, Queensland

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Use of variable frequency drives with wound rotor motors ...

Use of variable frequency drives with wound rotor motors. Publication date: October 2004. Author(s): Jim McKee (deceased), Alabama Electric Motor Service. Type of media: Article. 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 ...

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

 · 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. .

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