• 1000 HP Synchronous Motor Electric motors & generators

    Jun 16 2004· I have a Synchronous Motor coupled to a Ball Mill by clutch It starts uncoupled and after it synchronizes the clutch engages the load Nameplate and other data and parameters are 1000HP PF 10 4160V 60HZ 180 rpm 60°C Rise Stator 70°C Rise Rotor Excitation 125V kVA 800 111 Amps armature 125 V field Exc Amps 158 frame 9404 GE

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  • Starting protection synchronization and control for

    Motor Protection GEDigitalEnergy 446 Protection The SPM controls starting synchronizing and protection of collector ring or brushless type synchronous motors Squirrel Cage Protection An important motor protection function is preventing squirrel cage winding overheating during motor starting For brushless motors squirrel cage

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  • Discussion at spring convention Synchronous motor drive

    This motor was installed for power factor improvement and as it replaced a wound rotor induction motor it was connected to the mill by means of the magnetic clutch which formed part of the original motor drive together with a solenoid operated brake for stopping the mill in case of accident

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  • INNOVATION NEWS Mills and GMDs ABB Ltd

    Mills and GMDs Maarten van de Vijfeijken* looks at large larger and the largest units in grinding ore T he gearless motor (also called wrap around motor or ring motor) is a very large synchronous motor The poles of the motor are directly installed on a pole flange on the mill shell this means the mill body becomes the rotor The stator of the

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  • Dominion Rod Mill Supplier Worldwide 95 x 14 Ball Mill

    500 hp westinghouse synchronous motor 2300 volt 1255 amps 3 phase 60 hz Presently without liners Can be quoted complete with new liners and supplied reconditioned ready to go into service Spare used pinion gear available Can also be supplied with rod loader if required Mill has been removed from foundation and is presently in Savona BC

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  • Used Mining Equipment for sale Mine Hoists Grinding Ball

    ball mills for sale rod mills pebble mills mining mineral processing & power plant equipment for sale mine hoists for sale crushers pumps synchronous motors dc motors diesel and natural gas generators flotation & more!

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  • Synchronous motor Wikipedia

    A synchronous electric motor is an AC motor in which at steady state the rotation of the shaft is synchronized with the frequency of the supply current; the rotation period is exactly equal to an integral number of AC cycl Synchronous motors contain multiphase AC electromagnets on the stator of the motor that create a magnetic field which rotates in time with the relative oscillations of

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  • Synchronizing synchronous motors motors prior to clutch

    Jan 01 1985· Synchronizing synchronous motors motors prior to clutch closure In the past where more than one synchronous motor was used on a mill drive these were permanently coupled to the gear train in the correct electrical and mechanical relationship during installation The coupling means was not readily adjustable during the operation of the

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  • Synchronous Motor Clutch Mill astrologieconsultoffenbergnl

    synchronous motors with clutches for mill ubot linaluxbe synchronous or asynchronous drive unit for ball mill Large ball mills adopt pitot pressure or hydrostatic bearings 3 Air clutch system for starting the motor safely 4

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  • SAG Mill Semi Autogenous Grinding Mill

    The power to spin the mill comes from large electric motors coupled to mill shell through a clutch and gear system These electricity consumed by these motors is the largest cost and inefficiency Most of the power is converted to heat in the charge (load) and a small percentage into ore breakage

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  • Hurst Permanent Magnet AC Synchronous Motor Family

    HURST ® permanent magnet synchronous motors are reversible permanent split capacitor motors identical in construction to the HURST ® stepping motors The 60 Hz can stack motors operate at synchronous speeds of 300 and 600 RPM High quality gearing is available for the can stack motors

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  • MILL BALL 13' X 21' ALLIS CHALMERS 2000 HP R/L

    Aug 28 2013· ball mill 13' diameter x 21' long manufactured by allis chalmers (svedala) rubber lined mill with siemens allis 2 000 hp 4000 volt 200 rpm synchronous motor eaton airflex clutch

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  • INNOVATION NEWS Mills and GMDs ABB Ltd

    Mills and GMDs Maarten van de Vijfeijken* looks at large larger and the largest units in grinding ore T he gearless motor (also called wrap around motor or ring motor) is a very large synchronous motor The poles of the motor are directly installed on a pole flange on the mill shell this means the mill body becomes the rotor The stator of the

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  • liquid rotor starter for ball mill YouTube

    Jun 28 2019· The steady state results of the power system study for the 6050hp motor areexperience with synchronous and Semantic ScholarBall mill and motor 3 Ball Mill drives with synchronous motor

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  • Steel and rolling mill industry Product range VEM Group

    Right from the beginning we have high performance slow running motors for the metal industry in our delivery program After direct current motors having dominated for a long time today dynamic high quality three phase motors are used for larger torques as synchronous machines as solid pole versions for smaller torques as asynchronous squirrel cage motors

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  • fail clutch ball mill wiersmaenzoonnl

    fail clutch ball mill sidestarelegancebe synchronous motor clutch mill paparazzi restauranteu fail clutch ball mill 514 rpm synchronous motor with an air clutch and gear box to a to the through put of the mill Despite the or air clutch More Info; fail clutch ball mill bedouinin

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  • AC Motors & Gear Motors orientalmotor

    The basic speed (synchronous speed) of a standard AC motor is determined by the power supply frequency and the number of pol Many of our standard AC motors have four poles so their synchronous speed is as follows Clutch & Brake Motors Equipped with an electromagnetic clutch and brake at the motor output shaft High frequency starting

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  • AC Motors & Gear Motors orientalmotor

    The basic speed (synchronous speed) of a standard AC motor is determined by the power supply frequency and the number of pol Many of our standard AC motors have four poles so their synchronous speed is as follows Clutch & Brake Motors Equipped with an electromagnetic clutch and brake at the motor output shaft High frequency starting

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  • Cover headline Eaton

    mills with synchronous mo tors or high speed motor and gearbox designs with the clutch mounted on the output shaft of the gearbox to avoid the need for the additional costly invest ment required for high torque equipment Where speeds permit Airflex® that there is no unintentional clutches can also be used for inching or jogging the grinding

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  • GRINDING MILLS BALL MILLS Page 7 New & Used Mining

    grinding mills ball mills NEW AND USED BALL MILLS FOR SALE Nelson Machinery supplies Ball Mills worldwide We offer used ball mills as well as new unused and refurbished or rebuilt 1500 HP synchronous motor Eaton Fawick air clutch L01741 (2) 13 FT DIA X 205 FT ALLIS CHALMERS MPSI BALL MILLS Spout Feed Overflow Discharge 1750

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  • 10 MW coupling combination with lock up clutch Cement

    10 MW coupling combination with lock up clutch But even in Europe where high speed squirrel cage and slip ring motors are more commonly used in ball mills synchronous motors used in conjunction with the new Voith coupling represent an alternative to be taken seriously The new unit then permits power factor correction for the entire plant

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  • (PDF) Evaluation of synchronous motors on grinding mills

    Evaluation of synchronous motors on grinding mills torque characteristic s of a synchronous motor a nd mill load when starting the mill discon nected via an air clutch and when starting the

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  • Synchronous Motors Applications And Working Principle

    Jul 11 2019· Principle of Operation Synchronous Motor Synchronous motors are a doubly excited machine ie two electrical inputs are provided to it Its stator winding which consists of a We provide three phase supply to three phase stator winding and DC to the rotor winding

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  • Synchronous Motors on Grinding Mills The Different

    Abstract Synchronous motors (SMS) continue to be a viable alternative to induction motors because of efficiency advantag Since SMs have long been used to provide leading kvar for power factor (PF) improvement and to help with the device switching in load commutated inverter (LCI) drives these machines are efficient prime movers for large mill applications

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  • Synchronous Motors ThomasNet

    Choose from such AC synchronous motors as synchronous motors with a torque rating of 19 oz in @ 10RPM magnum duty synchronous motors with a torque rating of 24 oz in @ 10RPM or synchronous motors with 40 oz in of torque at 10RPM & sports a full metal gear train for high durability Voltage range includes 24V/60Hz 120V/60Hz & 230V/50Hz

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