wound rotor motor mill drives

wound rotor motor mill drives

Mineral Processing | Toshiba International Corporation ...

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 products can be

Ball Mill Drives - Mineral Processing & Metallurgy

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 …

75kW Wound Rotor Control For Steel Rolling Mill

Wound rotor motor control for demanding industrial applications from 200 kW to 12.4 MW moToR CoNTRoL & DRIVES. The issues ... single motor drives 0.7 x flT 1.0 x flT 1.4 x flT 2.0 x flT Hlr700 1,400 1,000 700 500 Hlr1100 1,600 1,100 790 550 Hlr1400 2,600 1,800 1,300 900

Wound rotor motor - Wikipedia

Ball Mill Rotor Ball Mill. Ball mill liquid rotor starter logan sainlez wound rotor motor and ball mill starting curve liquid rotor starter for ball millhenan mechanic wound rotor induction motor with liquid rheostat suitable starter for ball mill starting through slipring motor 11 kv 2600 kw a slip ring motor uses resistors in get get more teco westinghouse custom synchronous motors

Wound Rotor Motor And Ball Mill Starting Curve

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.

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.

TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL …

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 .

Slip Energy Recovery Drives (SER) Australia | CSE Uniserve

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.

TECO-Westinghouse Wound Rotor Motors

Wound-rotor synchronous motors can be run at even higher speeds. In rolling mill drives, often % 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.

wound rotor motor mill drives - chocolat05.fr

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. Motors …

Variable-frequency drive - Wikipedia

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 (GMD) with a power of 6.5 MW was

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.

Wound Rotor Motor Mill Drives - battleguide.co.za

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 speed control.

Wound Rotor Motor Mill Drives - factjeugdnoord.nl

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.

What is Induction Motor Drive? Explanation & Starting ...

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

LIQUID RESISTANCE STARTERS - NHP Electrical

What makes the wound rotor motor a unique induction machine is its rotor. Instead of a series of rotor bars, a set of insulated rotor coils is used to accept external impedances. The rotor windings are similar to those found on a DC armature, with the coils connected together to a set of rings that make contact with carbon-composite brushes.

LIQUID RESISTANCE STARTERS - NHP Electrical

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 …

Ball Mill Drives - Mineral Processing & Metallurgy

wound rotor motor mill drives. Variable speed drives slip energy recovery . in slip energy recovery a voltage is applied to the slip ring terminals in phase with the rotor current if there is a load applied to the motor the rotor will slow down resulting in an increase in slip as slip increases the effective Details.

Slip Energy Recovery Drives (SER) Australia | CSE Uniserve

A wound-rotor motor, also known as slip ring-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 …

Advantages of SER drives for SAG mills | GoHz

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. Motors …

Mineral Processing | Toshiba International Corporation ...

Wound rotor motor control for demanding industrial applications from 200 kW to 12.4 MW moToR CoNTRoL & DRIVES. The issues ... single motor drives 0.7 x flT 1.0 x flT 1.4 x flT 2.0 x flT Hlr700 1,400 1,000 700 500 Hlr1100 1,600 1,100 790 550 Hlr1400 2,600 1,800 1,300 900

Wound Rotor Motor Mill Drives - battleguide.co.za

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 ...