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 capabil­ity while limiting current to start and run very high inertia loads such as hammer mills, …

mill drive failurewound rotor motor - MC World 2019/02/16· 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.

DIRECT CONNECTED Ball Mill DRIVE. When power exceeds 300 HP a direct connected drive is recommended. This drive is also applicable for lower power requirements if desired. Synchronous motors are preferred, but in some cases wound rotor motors may be used. Motor speeds will vary from 225 rpm to 450 rpm.

Synchronous motors have a unique and merited position as the most efficient electrical drive in the industry and are often 1-2% more efficient than induction motors. • Power factor correction Synchronous motors can operate at leading power factors, providing VARs to the power system, reducing demand charges often caused by induction motors.

mill drive failurewound rotor motor. mouse mill motor wikipedia it has similarities to both the synchronous motor and the contemporary stepper motor as the mouse mill motor was simple to construct and its speed could easily be governed it was later used to drive automatic recorders in telegraphy the name derives from the rotors resemblance to a ...

Wound Rotor Motor Mill Drives - factjeugdnoord.nl. 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, …

The rotor grounding seals require machining (internal) or drill and tapping (external) for the assembly to accurately fit onto the shaft and are typically mounted on the drive end bell of a motor. In some cases both ends of the motor shaft are grounded using the seals.

mill drive failurewound rotor motor - MC World. Mouse mill motor - Wikipedia. It has similarities to both the synchronous motor and the contemporary stepper motor. As the mouse mill motor was simple to construct and its speed could easily be governed, it was later used to drive automatic recorders in telegraphy.

Created Date: 2/1/2005 3:50:28 PM

Adjustable speed motor drive using a wound rotor of an induction motor mechanically connected to the armature of a d.c. motor,both electrically connected by a control system Download PDF Info Publication number US3519909A.

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. The question what drive system is optimal for SAG and ball mills is project specific and depends on the …

wound rotor motor mill drives - hornbyspares.eu. Wound-rotor motors deliver speed control of heavy and high-torque loads.What'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 …

mill drive failurewound rotor motorMC World. BALL MILL DRIVE MOTOR CHOICES - artec-machine. 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.

Standard Drive & Induction Motor Slip Power Recovery Drive & Wound Rotor Motor Pump Load at Full Speed, shaft kW Pump load at 90% speed, shaft kW Utility supply power fl ow Power fl ow to motor stator Power fl ow to Slip power recovery drive Slip power recovery after transformer – P3 P1 P2 P4 P5 3730 kW (5,000 hp) 2720 kW 2980 kW 2863 kW 0 ...

Overloaded motors can overheat and lose efficiency. Many motors are designed with a service factor that allows occasional overloading. Service factor is a multiplier that indicates how much a motor can be overloaded under ideal ambient conditions. For example, a 10-hp motor with a 1.15 service factor can handle an 11.5-hp load

rotor use for motor cement ball mill - ibsmorgin Ball mills are predominantly used machines for grinding in the cement the optimisation of a ball mill circuit and, Mouse mill motor - Wikipedia Froment's "mouse mill" motor was an early form of electric motor,, The rotor of Ritchie's motor was the two ends of a single bar, .

Post Glover Wound Rotor Motor Resistors Post-Glover Resistors, Inc. Wound rotor motors, as opposed to AC . Get Price; ball mill wound rotor moror starting ugcnetnic. Ball Mill Wound Rotor Moror Starting Kalyazin. type of induction motor that drive ball mill Grinding . . Feb 14, 2016 . crusherexporters wound rotor motor and ball mill starting ...

Steel Rolling Mill wound rotor AC Motor, US $ 15000 - 100000 / Piece, 18 months after shipment, Shanghai, China, CHINA ELECTRIC.Source from Shanghai Fortune Electric Co., Ltd. on Alibaba.

The drive system hardware used for the wound rotor motor drive is the same as that used presently for, wound rotor motor mill drives; .... Máquina Mill Motor Starter LRS The 3mva motor is the main drive of the mill during, x 905 EGL SAG Mill with a 52MW Wound Rotor Induction Motor, Máquina Mill Motor Starter ....

Mill up-rate A mill operator had re-rated one Wound-Rotor motor in a Tandem pair. ... AC Dynamometer Drives . The effect of voltage dips on wound rotor induction motors ... Abstract Slip energy recovery (SER) drives are used extensively in industry as they offer cost effective speed control of large wound rotor induction motors. Wound rotor ...

drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive- 10SPRs control motor speed by recovering rotor current and returning the power to the utility supply.

An optional Variable Speed Motor Controller will allow convenient speed control. CAPACITY—Input: 500 #/hr with standard drive motor. PARTICLE SIZE—Input: Maximum 1/8 inch diameter. Other considerations include particle density and rotor speed. PARTICLE SIZE—Output: Subsieve (less than 5 Microns) to coarse (over 200 Microns).

BALL MILL DRIVE MOTOR CHOICES In more recent times the wound rotor motor with the liquid rheostat has come into . Get Price; mill drive failurewound rotor motor bsembgwalior. mill drive failurewound rotor motor; Slip power recovery systems When are Wound rotor motors TMEIC. in the cement and mining industry for starting and driving . Get Price

Traction motors used to drive trains are series motors that provide the required torque and horsepower to get massive amounts of weight mov-ing. On the coldest days of winter the series motor that starts your car overcomes the extreme cold temperatures and thick lubricant to get your car going. Shunt DC Motor The shunt motor is probably the ...

Wound Rotor Motor Mill Drives - Fact Jeugd Noord. 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 ...

The high-torque wound-rotor motor starts the mill under control of a resistor-contactor secondary or a stepless liquid rheostat. The latter can be regulated for constant torque or constant acceleration, or some combination as indicated. The liquid-rheostat is preferable, but a little more expensive for smaller drives.

Wound rotor motors are a variation of the AC induction motor and are excellent for Chipper applications, which often require 300% pullout or maximum torque. They can meet this high torque requirement throughout the speed range and while limiting starting current. While an induction motor has a closed, squirrel cage rotor, a wound rotor

Wound rotor induction motors (WRIM) have been popular for decades 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 only large ac motor that controlled starting characteristics and adjustable speed capability. Stator R ot r Slip Rings 3-Phase stator

Rotor Use For Motor Cement Ball Mill. motor drive for cement ball mill,cg double cage motor for cement mill. ( high voltage motors ) for the raw and cement ball-mill twin drives slip ring or other wound type rotor motors are used all over the world. cg hungary is the first in the world to... read more.getting more from the cement ball mill with the fives fcb,efficiency, with a …