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It is advisable to avoid line-starting of induction motor and use starter because Ans: motor takes five to seven times its full load current wound rotor Q58 The starting torque of a 3-phase squirrel cage induction motor is Lubricant used for ball bearing is usually Ans: grease Q77 Get price


Application Notes Vertical mills for mining

Vertical mills for mining Making things right Gearbox Motor To properly select either wound rotor or squirrel cage AC requirements of the driven equipment must be understood Motors that do not have sufficient starting torque for the driven equipment will stall during starting Get price



Wound rotor motors also can develop high starting torque at standstill – while maintaining low inrush Long motor life is ensured with the use of external resistor banks or liquid rheostats that dissipate heat build-up generated during motor start-up Get price


Planetary Ball Mill PM 200

The extremely high centrifugal forces of a planetary ball mill result in very high pulverization energy and therefore short grinding times The PM 200 is a convenient benchtop model with 2 grinding stations You may also be interested in the High Energy Ball Mill Emax an entirely new type of millGet price


ball mill starting with slip ring motors and liquid rheostat

Ball Mill Wound Rotor Moror Starting - antwerpsehavenpijlbe Ball mill starting with slip ring motors and liquid rheostatAbb liquid rheostat starter kaolin equipment suppliersLiquid rheostat starter for ball mill boyonbike gearless sag mill slip ring motor - obsdelindertnl Get price


7000hp 390rpm GE AC Wound (Slip Ring) Rotor Motor for

We offer the most reliable choice for all kinds of Ball Mills Rod Mills Pebble Mills SAG Mills Mine Hoists Crushers Diesel Generators Natural Gas Generators and all the Mining Equipment you require 7000HP GE WOUND ROTOR MOTOR FOR SALE (SLIP RING) Qty Type ID # Description 1: AC: M145: 7 000hp Motor GE AC Wound (Slip Ring) Rotor Get price


CSE Uniserve Slip Energy Recovery System (SER) Rotor Drive

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 Get price


Can slip ring induction motor work as a squirrel case

SQ I/M rotor has cu bars inserted between the slots provided on core where as in case of slip ring I/M the slots on the core are filled with rotor windings 2 the starting torque of slip ring I/m can be changed or increased by changing external resistance connected to the rotor Get price


Difference Between Synchronous and Asynchronous

Difference Between Synchronous and Asynchronous Motor The Difference Between Synchronous and Asynchronous Motor are explained considering factors like its type slip requirement of additional power source requirement of slip ring and brushes their cost efficiency power factor current supply speed self starting effect in torque because Get price


Construction of squirrel cage induction motor explained

Know about the most popular and almost unbreakable construction of Squirrel Cage Induction Motor Know about the different winding slots lamination of the stator and its construction Also appreciate the rugged construction of squirrel cage rotor and know the spectacular reasons for the skewed arrangements of the rotor conductors Know how a Get price


Mining Processing

One drive often is used to service several mills using contactors or breakers to select the starting motor This makes the best use of drive hardware and gives high value to the mill When wound rotor motors are employed the TMDrive-10 Slip Power Recovery Drive (SPR) can Get price


Good Quality China Ybx3 Yej Yvf Ye Yct Yl Electric

Good Quality China Ybx3 Yej Yvf Ye Yct Yl Electric Machinery Find details about China Water Pump Blower from Good Quality China Ybx3 Yej Yvf Ye Yct Yl Electric Machinery - Get price



MOTORS A C SLIP RING 60 CYCLE (Wound Rotor) 3000 HP 1190 RPM General Electric Frame 6368SU Weatherproof type II enclosure sleeve ball mill motor 4160/6600 V Request a QuoteGet price


Unit 9

Start studying Unit 9 - Basic Electric Motors Learn vocabulary terms and more with flashcards games and other study tools - strength of starting cap replacement must be equal to but not greater than 20% (wound like 3 phase motor) - rotor (ball bearings) 3 permanent magnets 120 degree segments an ECM is a Get price


Used Mining Equipment

An opportunity to acquire a 6 2m dia x 9 5 m L (f/f) x 6000 kW Citic* ball mill (20 34 ft x 31 16 ft x 8000 HP) Citic ball mill at a significant time and cost saving compared to a new machine The equipment is stored ready for packing and shipment worldwide The ball mill drive is a 6000 kW (8000 HP) wound rotor induction motor with speed reducer Get price



Energy Efficiency Legislations Worldwide 2019 WEG Standard Product Catalog (Motors Enclosed Motor Controls Gears and Alternators) 2018 WEG Automation Catalog: LV Variable Frequency Drives and Soft Starters (Full Catalog)Get price


Electrical motor components

Electrical motor is a common used in industrial for many application This time i want share the basic knowledge for electric motor Before we go further about how to troubleshooting repairing or installing firstly we must know roughly about the electrical motor component For electrical person electric motor components basic knowledge should Get price


Escap Ironless Rotor DC Micromotors and Step Motors

4 3 Rotor Assembly The ironless rotor in the form of a cylinder rotates around the magnetic core In Escape motors the rotor is made in the form of a skew wound coil and is fixed to a disc carrying the commutator According to the motor dimensions the commutator has between 5 and 13 segments Get price


Ring gear drives huge grinding mill

1-3-2000Ring gear drives huge grinding mill A secondary or ball mill The higher-speed motors are either squirrel cage or wound rotor Low-speed versions are normally synchronous motors and are used with air clutches The Escondida SAG mill will be by far Get price


Secondary Resistance Controllers (SRC) for Wound Rotor

Secondary Resistance Controllers (SRC) for Wound Rotor Induction Motors 1 How Does It Work? The Secondary Resistive Controller (SRC) manipulates the wound rotor motor torque-slip characteristic to enable the delivery of the desired torque at the desired speed to control the speed and acceleration of a motor starting and controlled Get price


Wound Rotor Induction Motor

A Wound Rotor Induction Motor is also known as slip ring induction motor I will tell you about the construction of Wound Rotor Induction Motor in the first section In the second section I would be throwing light on the operation and working principle of Wound Rotor Induction Motor Get price


Motor Control Resistors

The most popular uses of Post Glover resistors are control of AC wound rotor induction motors (slip ring motors) DC series wound motors and AC squirrel cage induction motors Our resistors are also commonly used for wye-delta closed-transition starting applications Get price


Planetary Ball Mill PM 400

The extremely high centrifugal forces of planetary ball mills result in very high pulverization energy and therefore short grinding times The PM 400 is a robust floor model with 4 grinding stations You may also be interested in the High Energy Ball Mill Emax an entirely new type of mill for highGet price



INDUCTION MOTOR TORQUE-SPEED CHARACTERISTICS and the lower the efficiency A motor with a high rotor resistance has a high starting torque and poor efficiency during normal operation If the rotor resistance is low A wound rotor induction motor can be used to provide high starting torque during start-up by inserting extra resistance Get price


China High Voltage Motor manufacturer High Efficiency

High Voltage Motor High Efficiency Motor Synchronous Motor manufacturer / supplier in China offering Jr Series 3-Phase Asynchronous Slip Ring Motors Jr Series Wound Rotor Slip Ring Motor Ball Mill Motor 380kw Ykk Series High Voltage Squirrel Cage Motor and so on Get price


liquid rotor starter for ball mill

28-6-2019Figure 9 - Starting characteristic with liquid rheostat starters The steady state results of the power system study for the 6050hp motor are experience with synchronous and - Semantic ScholarBall mill and motor 3 Ball Mill drives with synchronous motor and air clutch/fluid coupling 7 2 Get price


HELMKE: Slip ring motors

Slip ring motors or also called wound rotor motors are the heart in a lot of drive applications in the high power range They are most commonly used in the raw material industry like mining of ore and minerals or in the binders industry like cement limestone and gypsum in diverse technologies of crushers roller presses and mills but also in Get price


Slip Ring Motor Slip Ring Motor Suppliers and

Alibaba offers 1 891 slip ring motor products About 43% of these are ac motor 17% are electrical contacts and contact materials and 4% are other motor parts A wide variety of slip ring motor options are available to you such as ccc ce and vde Get price


Motor Starting Control Resistors

Motor Starting Resistors are used to reduce the voltage at the motor terminals and also decrease the starting current Motor Starting Resistors are necessary because the self resistance of a motor armature is very low When the voltage is first applied excessive current will flow Get price



• An induction motor is an alternating current motor in which the primary winding on one member • No need of extra starting motor and need not be synchronized • A wound rotor has three-phase double-layer distributed winding It is wound for as many poles asGet price


Basic construction of 3

18-4-2011For industrial and mining applications 3-phase AC induction motors are the prime movers for the vast majority of machines These motors can be operated either directly from the mains or from adjustable variable frequency drives In modern industrialized countries more than half the totalGet price


Induction Motor Calculator

The slip will decrease as the rotor speed increases Rated Torque Request to look at induction motor starting time have come up a few times on the site Hopefully in this post I give you guys some idea on how to calculate Lightning Risk Assessment (IEC 62305)Get price



Our induction wound rotor and synchronous motors process and intelligent controls and variable speed drives deliver the performance that's expected from best in class global suppliers Teco's long history of electrical-mechanical design and track record of award winning reliability will maximise your plant up-time whilst efficiently reducing total cost of ownership Get price

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