sag mill motor complete stator

ABB MotorGearless Mill Drive GMD SystemYouTube

Nov 08 2016 · ABB Motor Gearless Mill Drive GMD System. Electric Motor HOW IT S MADE-Super Electric Motor Manufacturing Technology in ChinaDuration 22 05. SMT Winding Equipment Recommended for youget price



Design and dynamic behavior of large Ring Motors for

Figure 1 Ring Motor of the 38 SAG-Mill of Rio Paracatú Mineraçao Brazil 3 Design Verification To assure reliability of operation the mechanical design must be verified. The magnetic field and the motor torque deform the stator of the motor. The stator get price



Making remote mines and low ore grades economical and

Unlike more traditional ring-geared mill driveswhere a ring-shaped gear encircles the mill and drives it through one or two pinions followed by conventional motorsGMDs work by mounting rotor poles directly to the mill body and surrounding it with the stator ring meaning the mill itself is incorporated into the motor.get price



Increasing availability through advanced Gearless Drive

for a 20 MW SAG mill considering a power supply price complete the supply. Variable speed for process optimization The speed of the GMD can be adapted to the operational motor (equally distributed around the circumference of the motorin all 4 stator segments)get price



Gearless Warp Around SAG Mill

Gearless Warp Around SAG Mill. An indifferent attitude of mill builders and electric motor manufacturers towards new drive technologies. (55 to each) which could be handled by the existing mill service hoists.The stator was assembled in-front of the partially completed mill get price



SIMINE Gearless mill drivesSiemens

mill drives require a powerful control system. Excellent performance characteristics can be obtained by applying TRANSVEKTOR® control. The control principle shown above is based on aligning the stator current s phase angle with the angle of effective flux. To calculate flux conditions the motor is simulated by two mutually supplementary models get price



Olympic Dam Svedala Mill BHP

On 28 January 2015 the Svedala mill part of BHP Billiton s Olympic Dam surface processing operations in South Australia suffered an electrical failure and was safely placed in the maintenance position. A complete diagnostic review was undertaken and revealed damage to the motor stator coil.get price



Motor temperature rise and ambient temperatureElectric

Our Sag mill motor is rated 1500HP with 4000V 212A and 0.8 lead power factor insulation class F and permissible temperature rise 80K. Our motor is actually used at 112 of nominal charge (1320kW 0.943 lead P.F. 190A 4220V). We want to know if we can still increase the load without damaging the motor or if the motor get price



HIGH PROFILE- ABB reprint proof 15/01/2015 09 05 Page 1

SAG mill and two 26 ft ball mills all made by . The drive systems that enable the mills to operate at benchmark levels of reliability efficiency and availability were made by ABB whose solution comprises a 23.5 MW gearless mill drive (GMD) for the SAG mill and two 13 MW low-speed dual-pinion ring-geared mill drive (RMD) systems for the get price



Teco-Westinghouse Custom Synchronous Motors

TECO-Westinghouse synchronous motor are also available with brush rigging and collector rings. The complete assembly is designed for long life and is easily accessible for inspection and routine maintenance. Made of steel or other suitable materials the collector rings are shrunk onto a steel mandrel over a Micarta insulation sleeve.get price



Modeling and Evaluation of Cycloconverter-Fed Two-Stator

Abstract Typical drive configurations of high-capacity SAG mills use a two-stator-winding vector-controlled synchronous motor with a 30° shift between the two windings fed by a two-secondary delta-delta-wye power transformer and two six-pulse cycloconverters. This paper presents and evaluates three different modeling options for the SAG mill drive.get price



INNOVATION NEWS Mills and GMDs

The stator of the gearless motor is then wrapped around the mill. With this innovative concept the gearless mill drive (GMD) eliminates all critical reliable drive system for SAG mills. Early SAG mills had a diameter of about 32 later the stator of a 40 SAG mill is over 21 m high OCTOBER 2010 International Mining 31 INNOVATION NEWS.get price



M C Installs Stator Coil Connections On Massive Mill

Marthinusen Coutts scope of work comprised the installation of stator quadrant windings on the four mill motors which were manufactured by Siemens Germany. Each SAG mill motor was get price



ABB to deliver three large gearless mill drives for

ABB s scope of supply consists of three complete GMD systems including transformers ring motors and E-house. One 26 megawatt GMD system will be installed for a 40-foot diameter SAG mill while two 20.5 megawatt GMD systems will be installed to drive two 27-foot diameter ball mills.get price



Gearless DrivesSiemens

Utah SAG mill and a 11 200 kW gearless drive for the El Teniente Chile SAG mill. In a continued call for larger even more powerful drives Siemens kept pace. In 1996 Freeport ordered the first gearless drive for a 38-foot SAG mill located at the company s Grasberg plant in get price



PSP MachineryReferences

Stator frame 25 4 t Trunnion bearing 90x26 16 t Foto 2017 Conical BM shell 8´x 72´´ 45 t Foto 2017 Outotec SAG Mill Shell Ø10 97 x 5 79 m 176 t Foto Ring motor 165 1 tget price



Projects Australian Winders

Rewedge 13mw ball millAUSTRALIA. 18mw ball mill rewind ABBCHILE. 12mw ABB/Alstom mill rewindUSA. 2x ABB / Alstom mills installationsUSA. Sossego mine mill Rewedge and coil change -BRAZIL. Sag mill rewind in ChileCHILE. 2 x Sag mill installation SwedenSWEDEN. Rewedge ball mill in Nevada USAUSAget price



Difference Between Sag Mill vs Ball Millmech4study

Oct 12 2017 · SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9 to 20 .This process takes place inside the large rotating drum of SAG mill which is filled with balls partially.get price



Space vector modeling of a SAG mill drive and evaluation

Combining these motor models to two 6-pulse one 12-pulse and one ideal cycloconverters three space models of the complete drive system are developed. The space vector models are evaluated during a normal stop sequence of an 8.2 MW SAG mill drive. The stop sequence includes a decelerating ramp a holding torque and a rollback triangular get price



Gearless mill drivesGrinding ABB

ABB s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG) ball and autogenous (AG) mills This workhorse for grinding operations combines a robust service-friendly and fit for purpose design to provide highest throughput reliability get price



Complete Monitoring SolutionsVibroSystM

Complete Monitoring Solutions The online monitoring of a large Ball or a SAG Mill provides vital information on the health of the machine. More than just protection VibroSystM provides ZOOM users get price



(PDF) Evaluation of synchronous motors on grinding mills

Ball mills and SAG mills To replace the sensor the information on the rotor speed is extracted from measured stator voltages and currents at the motor terminals. complete control of get price



ALL-TEST PRO 5™All Test ProElectric Motor Testing

Aug 31 2019 · ALL-TEST PRO 5™Discontinued Deenergized Testing Instrument Instrument Discontinued as of August 31 2019 The ALL-TEST PRO 7™ PROFESSIONAL and the ALL-TEST PRO 7™ are great alternatives to the ALL-TEST PRO 5™ and have had excellent success. Finally predictive maintenance made VERY easy Significantly increase your plant s profitability with the AT5™ motor get price



Remote Power Station Recovery Qualitrol Corp

SAG Mill Motor Programmed Rewind How a mining company reduced costs by over 60 with independent advice. Remote Power Station Recovery. This remote power station supplies power to a major gold mining operation. A major systems disturbance resulted in 4 of the 8 operational units at the station failing with stator earth faults.get price



SAG Mill Motor Programmed Rewind Qualitrol Corp

SAG Mill Motor Programmed Rewind During a visual inspection condition assessment on the SAG Mill it was identified there was an insulation anomaly in the rotor which exposed the business to the risk of unexpected failure.get price



SAG Mill Motor Programmed Rewind Qualitrol Corp

SAG Mill Motor Programmed Rewind During a visual inspection condition assessment on the SAG Mill it was identified there was an insulation anomaly in the rotor which exposed the business to the risk of unexpected failure.get price



When it Comes to Mining Bigger is Best PTE

An SABC circuit consists of a semi-autogenous grinding (SAG) mill ball mill and crusher. A ball mill is a slightly inclined horizontal rotating cylinder partially filled with ceramic balls flint pebbles or stainless steel balls that grinds material to the necessary fineness by friction and impact with tumbling balls (Fig. 2).get price



Gearless mill drive (GMD) and digital services for Kinross

On 1 August 2018 Kinross announced that construction was complete and that first ore had gone through the semi-autogenous grinding (SAG) mill. Since then the mill throughput increased from get price



Modeling and Evaluation of Cycloconverter-Fed Two-Stator

Abstract Typical drive configurations of high-capacity SAG mills use a two-stator-winding vector-controlled synchronous motor with a 30° shift between the two windings fed by a two-secondary delta-delta-wye power transformer and two six-pulse cycloconverters. This paper presents and evaluates three different modeling options for the SAG mill drive.get price



Gearless mill drivesGrinding ABB

ABB s GMD is the most powerful mill drive system in the market to power semiautogenous (SAG) ball and autogenous (AG) mills This workhorse for grinding operations combines a robust service-friendly and fit for purpose design to provide highest throughput reliability get price



M C Installs Stator Coil Connections in Zambia

The four motors are gearless mill drives (GMDs) also known as wrap-around motors and include two 26MW ball mill motors and two 28MW SAG mill motors. Among the challenges on this project were get price



Increasing availability through advanced Gearless Drive

for a 20 MW SAG mill considering a power supply price complete the supply. Variable speed for process optimization The speed of the GMD can be adapted to the operational motor (equally distributed around the circumference of the motorin all 4 stator segments)get price



Olympic Dam Svedala Mill BHP

On 28 January 2015 the Svedala mill part of BHP Billiton s Olympic Dam surface processing operations in South Australia suffered an electrical failure and was safely placed in the maintenance position. A complete diagnostic review was undertaken and revealed damage to the motor stator coil.get price