kolkata ball mill wound rotor moror starting

Synchronous Motor Troubleshooting Mike Holt s Forum

nbsp 0183 32 Q Doesn t the rotor get shorted out maybe a small resistance and it starts as an induction wound rotor motor Just thinking out loud - If the starting SCR I can t read the number - but the one associated with D1 were to stick on that would short out the exciter which would take out short two SCRs one on each side of the bridge then the fuses would open right after...

Starting a 6kV 3Ph

nbsp 0183 32 Starting a 6kV 3Ph - 2 200 kW - 1 000 rpm slip-ring motor for a cement ball mill - Duration 3 51 Yves Mamin 455 854 views 3 51 Tree Cutting Fails Compilation And Idiots With Chainsaw...

Lrs Principle

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...

Ball mill drive motor choices

First works analyzing grinding mill drives 1 2 focused on the torque requirements motor options wound rotor induction motors synchronous motors and drive arrangements center drive one...

LMPForum Motor Control Technology Forum

nbsp 0183 32 vfd on slip ring quot wound rotor quot 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...

ball mill drive motor choices

mill drive motor - millforprice com ball mill drive motor choices - Artec Machine Systems The time has come to re-think our approach to mill drive motors because of the growth ball...

Ball Mill Motor Starting Curves Heavy Industry

chp ppt ball mill motor starting curves ball mill start - athenatechs in Heavy Industry is the biggest ball mill motor starting curves manufacturers and suppliers in advantages of ball mill ppt secondhand cement ball grinder mill in...

Starting a 6kV 3Ph

nbsp 0183 32 - D 233 marrage d un moteur 6kV 3Ph 50Hz - 2 200kW - 1 000 t/min de moulin 224 boules pour ciment 00 55 - Starting a 6kV 3Ph 50Hz - 2 200kW - 1 000rpm slip-ring...

Wound Rotor Induction Motor AC Low Voltage Induction

KECL Manufacture of wound rotor induction motors with Low Voltage Rerolling Mill Duty Motor Non corrosive amp non hazardous in nature Chairman s Message Dear Shareholders I am happy to present the Annual Report for the year 2012-13 I would also like to...

China Yrkk Ball Mill Special AC Hv Slip Ring Motor

The HV wound rotor slip ring motor can increase the large starting torque at a small starting current The motor is suitable for applications where the capacity of the feeder line is insufficient to start the squirrel-cage rotor the starting time is long the starting is frequent and the small-range speed regulation is required...

Current on rotor connected to rheostat Mike Holt s Forum

nbsp 0183 32 I have working with a 4 16kV wound rotor motor with the rotor connected through slip rings to a rheostat during starting Obviously after the motor has started the leads coming from the rotor are shorted together in the rheostat My question is after the rotor leads are shorted together is...

liquid resistant starters on ball mills

Mill motor 2 9MW 6 3KV rotor current 775A rotor voltage 2770V Torque delivered would be around 1 6 x Full load torque very typical for a ball mill or sag mill The liquid starter simply adds resistance in the rotor during starting to...

Ball Mill Drives

Several types of ball mill drives can be furnished made up of various combinations of gearing motors and transmission equipment The correct combination to be selected takes into consideration power requirements gear ratings floor space interference from other plant equipment and motor characteristics The main types are described and illustrated on these pages Motors considered are...

Wound rotor motor

Find your wound rotor motor easily amongst the 37 products from the leading brands FAULHABER Baldor WEG on DirectIndustry the industry specialist for your professional purchases Torque 1 000 Nm - 100 000 Nm Power 200 kW - 10 000 kW Rotational...

China Jr138

Jr Motor Wound Rotor Motor Slip Ring Motor manufacturer / supplier in China offering Jr138-6-320kw Jr Series Wound Rotor Slip Ring Motor Ball Mill Motor Low Speed 490r/Min 800kw High Voltage Slip Ring Three Phase AC Electric Induction Motor Yr630-12...

Cycloconverter Control of Induction Motor

Cycloconverter Control of Induction Motor drive has applications in high power drives requiring good dynamic response but only low speed operation e g in ball mill in a cement plant The low speed operation is obtained by feeding a motor with large pole numbers from a Cycloconverter Control of Induction Motor operating at low frequencies...

Wound rotor motor

Wound-rotor motors can be started with low inrush current by inserting high resistance into the rotor circuit as the motor accelerates the resistance can be decreased 1 Compared to a squirrel-cage rotor the rotor of the slip ring motor has more winding turns the induced voltage is then higher and the current lower than for a squirrel-cage rotor...

Motor Schematics Large Motors above 4MW

Each mill was driven by a pair of 3000 HP wound rotor motors with liquid rheostat starting Each mill was supplied by two cubicles of a 13 000 Volt lineup but only one breaker Both motors were fed from the one breaker but each motor had individual protection...

ball mill liquid rotor starter

liquid resistance starters - NHP their attention to liquid resistance starting of wound rotor motors Applications Suitable for use with heavy industrial machines such as ball and SAG mills Starting of slip ring induction motor explained in an easy manner But how...

China Yr Yzr Wound Rotor Slip Ring Lifting Metallurgy

China Yr Yzr Wound Rotor Slip Ring Lifting Metallurgy Crane GOST Low Voltage Ball Mill Asynchronous Three Phase AC Induction Electric Motor Find details about China Three Phase Motor Ac Motor from Yr Yzr Wound Rotor Slip Ring Lifting Metallurgy Crane...

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