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wound rotor motor and ball mill starting

Wound Rotor Motor Mill Drives Fact Jeugd Noord

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 …

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 …

Wound Rotor TECO Westinghouse Motor Company a world

motor life is ensured with the use of external resistor banks or liquid rheostats that dissipate heat build up generated during motor start up 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 …

wound motor with liquid resistor starter for mill

Motor Variants1 09 soft start motor ball mill wound rotor motor and ball mill starting curve How does a liquid starter opperate Quora Jun 17 2016· Wound rotor motors use resistance in the rotor circuit to control torque and speed That resistance can be large high wattage physical resistor grids switched with contactors or it can …

Wound Rotor Induction Motor The Engineering Projects

 · Wound Rotor Induction Motor is used in applications which require smooth start and adjustable speed Some of the applications of this motor include cranes mills hoists and conveyors Wound rotor induction motor is also used in fans blowers and mixers …

Moment of Inertia of a Ball Mill bulk online com

 · I have attached two gif files showing calculations for Mill power Mills above a certain size will have an inching motor to assist starting of main drive motor A liquid resistance stater will work well when using wound rotor induction motor …

vfd on slip ring wound rotor motors Variable Speed

 · 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 a vfd driven appl We have sent the motor to our motor guy to refurbish and interconnect the rotor windings Is there any advice or similar applications out there that could be helpful …

Three Phase Induction Motor Construction your electrical

Construction of Phase Wound Rotor A phase wound rotor of three phase induction motor is also called slip ring rotor and the motors employing this type of rotor are known as phase wound or slip ring induction motors Slip ring rotor consists of a laminated cylindrical core having semi closed slots at the outer periphery and carries a 3 phase …

Rotor Resistance Starters Home – OHMIC RESISTORS OHMIC

Rotor Resistance Starters Slip Ring Motors are primarily used to start high inertia load or a load that requires a starting torque across a full speed range a conveyor drive would have more starting steps than a ball mill Single starting times can be set by timers PLC control or tacho feed back For High Voltage wound motors on the …

Wound rotor motor Wikipedia

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 accelerates …

Lrs Principle Motor Starting LMPForum

Wound motors are suitable for application with heavy starting duties such as ball sag mills crushers etc Typically LRS in these situations are used to start only and when motor has reached a certain speed the rotor is short circuited and it acts like an squirrel cage motor …

Slip ring motor starting YouTube

 · This is 315kW LV motor starting sequence 1 000 rpm slip ring motor for a cement ball mill Duration 3 Initial Start Up Testing of 1915 Vintage 750 HP Wound Rotor Motor after Rewinding …

Ball Mill Ball Mill Motor Starting Curves Crusher Mills

wound rotor motor and ball mill starting curve BALL MILL DRIVE MOTOR CHOICES – Artec Machine Systems ball mills the starting torque restrictions of some of the newer mill drive In more recent times the wound …

China Jr Series Slip Ring Electric Motor for Ball Mill

Ball Mill Motor Slip Ring Motor Wound Rotor Motor manufacturer supplier in China offering Jr Series Slip Ring Electric Motor for Ball Mill AC Induction Motor Electric Llift Motor AC Induction Motor High Temperature Electric Motors and so on …

Wound Rotor Induction Motors AC Motors Electronics

A wound rotor induction motor has a stator like a squirrel cage induction motor but a rotor with insulated windings brought out via slip rings and brushes However no power is applied to the slip rings Their sole purpose is to allow resistance to be placed in series with the rotor windings while starting …

Pony Motor to Start Large Motor on Weak Supply Electric

 · It is proposed to start a 1 3MW 3 3kV asynchronous induction motor for a ball mill on a weak supply by using a pony motor to bring the motor up to say 90 of rated speed before energizing the motor …

Ball Mill Drives Mineral Processing Metallurgy

Motors considered are the squirrel cage motor wound rotor motor and synchronous motor One important advantage of the synchronous motor is the possible correcting of power factor within your operation through its use When using a synchronous motor we recommend having 200 starting torque 120 to 130 pull in torque and 225 pull out torque …

Initial Start Up Testing of 1915 Vintage 750 HP Wound

 · City of Memphis Gayoso Pumping Station 750 HP 6 250 Volt 116 RPM Wound Rotor Motor 3 initial Start Up testing after rewind of both the stator and rotor This machine drives a pump that moves …

coupling for starter of ball mill keithkirsten co za

Normally an asynchronous wound rotor induction motor with secondary starter was used Chat Now Tajik Aluminium ball mill AuCom Electronics The Chinaware ball mill adopts the star delta slowly start mode or auto coupling reduced voltage start mode which both cause heavy starting current and Chat Now When the going gets tough the …

BALL MILL DRIVE MOTOR CHOICES Artec Machine

BALL MILL DRIVE MOTOR CHOICES The mill used for this comparison is a 4 4 meter diameter by 13 6 meter long ball mill with a 5000 HP drive motor It is designed for approximately 90 s ton per hour This type two compartment mill is a state starting DRIVE I Wound Rotor Motor With Capacitors…

What is a Wound Rotor Motor and How Does it Work

The specifications for a wound rotor motor involves understanding the specifications for all induction motors which can be reviewed in our article all about induction motors This article will highlight the important concepts for wound rotor motors that must be understood before purchasing one of these but know it is not all inclusive …

China Yr Yzr Wound Rotor Slip Ring Made in China com

Three Phase Motor Ac Motor Induction Motor manufacturer supplier in China offering Yr Yzr Wound Rotor Slip Ring Lifting Metallurgy Crane GOST Low Voltage Ball Mill Asynchronous Three Phase AC Induction Electric Motor AC Induction Motor Electric Llift Motor AC Induction Motor High Temperature Electric Motors and so on …

 

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