why it is used wound rotor motor in cement mills

New Mining Motor: a special product for tough application ,

New Mining Motor: a special product for tough application ,

Slip ring motors are widely used in the mining and cement industries since they are specifically designed to drive high torque load demands at low speeds, combined with low inrush current That is why these motors are a proven choice for mills, crushers, conveyor belts, among other applications for ,

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Wound Rotor Repair Tips: Testing, Application and Failure ,

Wound Rotor Repair Tips: Testing, Application and Failure ,

When a wound rotor motor fails, there are several things to check to determine the underlying root cause of the failure First, the entire rotor circuit must be con-sidered An interruption of the rotor circuit can result in a voltage transient (eg, “rapid restrike” or “reclosure”) failure mode Most wound rotor motor rotor circuits use

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3150kw Yrkk Series Large Size High Voltage Wound Rotor ,

3150kw Yrkk Series Large Size High Voltage Wound Rotor ,

The large high-voltage wound rotor slip ring motor can increase the large starting torque at a small starting current The motor is suitable for applications where the capacity of the feeder line is insufficient to start the squirrel-cage rotor, the starting time is long, the starting is frequent, and the small-range speed regulation is required

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Cycloconverter - Wikipedia

Cycloconverter - Wikipedia

CCVs are used for driving mine hoists, rolling mill main motors, ball mills for ore processing, cement kilns, ship propulsion systems, slip power recovery wound-rotor induction motors (ie, Scherbius drives) and aircraft 400 Hz power generation The variable-frequency output of a cycloconverter can be reduced essentially to zero

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DC Motor - Definition, Working Principle, Types, Uses, FAQs

DC Motor - Definition, Working Principle, Types, Uses, FAQs

Shunt wound DC motor In a shunt wound motor, the field winding is connected parallel to the armature as shown in the figure Series wound DC motor In a series wound DC motor, the field winding is connected in series with the armature winding as shown in the figure Compound wound DC motor DC motors having both shunt and series field winding is ,

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Applications of Induction Motor - Polyphase Wound Rotor ,

Applications of Induction Motor - Polyphase Wound Rotor ,

The wound rotor induction motors are used in conveyors, cranes, pumps, elevators and compressors The maximum torque is above 200 percent of the full load value while the full load slip may be as low as 3 percent The efficiency is about 90 % Applications of Polyphase Cage Rotor Induction Motors

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Advantages of SER drives for SAG mills | GoHz

Advantages of SER drives for SAG mills | GoHz

Dec 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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Wound Rotor Induction Motor - The Engineering Projects

Wound Rotor Induction Motor - The Engineering Projects

Wound rotor motor - Wikipedia

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ELECTRIC MOTOR PROBLEMS - BIN95

ELECTRIC MOTOR PROBLEMS - BIN95

electric current across a gap Two types of induction motors are commonly used: squirrel-cage and wound-rotor The names come from the way they are built Keywords: motor characteristics, mounting, frame size INDUCTION MOTOR DESIGN An electric motor consists of an iron rotor wheel mounted on a shaft, supported by bearings at each end,

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Detection of Winding Faults in Wound Rotor Induction Motor ,

Detection of Winding Faults in Wound Rotor Induction Motor ,

In this paper, loci of direct and quadrature axis of rotor currents are used for online detection of winding fault on stator side as well as rotor side in three-phase wound rotor induction motor

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ABB highlights the advantages of slip-ring motors in ,

ABB highlights the advantages of slip-ring motors in ,

In a wound-rotor AC induction motor, the slip-rings are not used to carry electrical current Instead, they are used to insert an increased resistance into the rotor windings In a three-phase motor, three slip-rings are used – one connected to each winding phase They are mounted on the motor shaft, so that they rotate as it rotat

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CiteSeerX — Comprehensive Study of Speed Control And Power ,

CiteSeerX — Comprehensive Study of Speed Control And Power ,

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): Abstract: Wound rotor induction motors have been popular for decades in the cement and mining industry for starting and driving large grinding mill A wound rotor induction motor is large ac motor that controlled starting characteristics and adjustable speed capability

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Wound Rotor Induction Motor - The Engineering Projects

Wound Rotor Induction Motor - The Engineering Projects

Oct 10, 2016· These motors are used with high inertia loads 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 They are used in large pumps in water industry

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Speed Control Of Wound Rotor Induction Motor Using ,

Speed Control Of Wound Rotor Induction Motor Using ,

To use variable resistance in the rotor circuit to control wound rotor induction motor speed Theory Polyphase induction motors are mainly of two types by construction, squirrel cage and wound-rotor(with slip-rings) In the case of a squirrel cage induction motor, the rotor is inaccessible and rotor circuit

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Presentation wound rotor ppt - SlideShare

Presentation wound rotor ppt - SlideShare

Feb 20, 2014· Terms used in Wound Rotor Slip The difference between a motor's synchronous speed and its speed at full load Percent slip is a way to measure the speed performance of an induction motor Slip rings A conductive device attached to the end of a wound rotor that conducts current to the brush 4 Continue Brush A device found inside a ,

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Wound Rotor Induction Motor Savings | TMEIC

Wound Rotor Induction Motor Savings | TMEIC

Large wound rotor induction motors (WRIM) have been used in some industries for decad In the cement and mining industries, high horsepower WRIMs are used on large grinding mills, where they have the advantage of controlled starting characteristics and adjustable speed capability These motors are also used on large pumps in the water and waste industry

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Crane Motor Control Resistors - Post Glover Resistors

Crane Motor Control Resistors - Post Glover Resistors

Resistors are usually mounted in, or on top of, the bridge structureMany steel mills use DC motors because, in the past, DC power was the best way to hoist heavy loads Newer plants are increasingly utilizing more readily available three-phase power, and wound rotor motors are often employedBrake resistor control techniques — In hoisting ,

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MOTOR CONTROL

MOTOR CONTROL

Wound Rotor Motors with Slip Rings This type of motor is still used for high power (600kW+) or medium voltage (33kV+) applications in arduous operating conditions – such as pumps and cement plants – where the combination of exact control and very high reliability is hard to achieve with variable speed driv The rotor windings are brought out to slip rings which are short-circuited ,

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Synchronous Motor : Construction, Working, Types ,

Synchronous Motor : Construction, Working, Types ,

Mar 25, 2020· For a very large power requirement, this motor is the only choice because if induction motor with cage or wound rotor is used the requirement of power factor capacitors is very high requiring very large space and also cost One finds such applications in core industries like steel/cement etc

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why it is wound rotor motor in cement mills - MCZB

why it is wound rotor motor in cement mills - MCZB

cement mills rotor why it is used wound rotor motor in cement mills Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement in which calcium carbonate reacts with silicabearing minerals to form a mixture of calcium silicat Live Chat

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Why is an induction motor used in textile mill drives? Why ,

Why is an induction motor used in textile mill drives? Why ,

Oct 19, 2014· In DC Motors Speed and Torque control is pretty easy Speed is proportional to Armature Voltage and Torque is proportional to Field Current But DC Motor require lots of maintenance and usually they are quite bulky In AC Induction Motors speed ,

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Wound Rotor Motors - Antriebstechnik KATT Hessen

Wound Rotor Motors - Antriebstechnik KATT Hessen

Wound Rotor Motors by Antriebstechnik KATT Hessen Innovative and highly efficient special motors Since 1924, KATT Motoren develops and manufactures (from 2002 Antriebstechnik KATT Hessen) electric motors customized for the most varied applications

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Types and Amazing Applications of Induction Motor

Types and Amazing Applications of Induction Motor

The rotor of an induction motor can be a squirrel cage rotor or wound type rotor Used in different applications, induction motors are also called Asynchronous Motors This is because an induction motor always runs at a slower speed than synchronous speed The speed of the rotating magnetic field in the stator is called synchronous speed

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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 downsides of wound rotor motors are the complexity and maintenance added by the slip rings and brushes, as compared to traditional squirrel cage motors However, wound rotor motors are beneficial in applications with high inertial loads – such as large fans, pumps, and grinding mills – because the wound rotor design allows the load to ,

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Synchronous Motor : Working Principle, Types, and Applications

Synchronous Motor : Working Principle, Types, and Applications

Synchronous Motor The synchronous motor doesn’t rely on induction current for working In these motors, unlike induction motor, multiphase AC electromagnets are present on the stator, which produces a rotating magnetic- fieldHere rotor is of a permanent magnet which gets synced with the rotating magnetic- field and rotates in synchronous to the frequency of current applied to it

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Wound-Rotor Motors — High Torque and Adjustable Speed | EC&M

Wound-Rotor Motors — High Torque and Adjustable Speed | EC&M

Wound-rotor motors deliver speed control of heavy and high-torque loadsWhat's special about the wound-rotor motor? This type of 3-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 starting current that's

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Post Glover Wound Rotor Motor Resistors

Post Glover Wound Rotor Motor Resistors

Post Glover Wound Rotor Motor Resistors Wound rotor motors, as opposed to AC induction motors, generate the same torque in both forward and reverse They are commonly used on fans, pumps, conveyors and crane systems The motors are rated according to their primary and secondary windings The primary ratings are given in volts

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Which motor used in mixer? - Quora

Which motor used in mixer? - Quora

Ya, mixers use universal motors which runs on AC as well as DC We had an mixer which dint work so, I thought I would open it and see what's in there The motor has stator and rotor There is a two pole stator with stator windings Stator seems to,

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ut a ring on it

ut a ring on it

In a wound-rotor AC induction motor, the slip-rings are not used to carry electrical current Instead, they are used to connect an external resistance into the rotor , conveyors, mills, crushers and fans in cement plants High starting torque from slip-ring motors also helps minimise mechanical stresses on the driven equipment, increasing the ,

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