synchronous motor for mill drive advantages

synchronous motor for mill drive advantages

Advantages & Disadvantages of Synchronous Motors

24/4/2016· Some of the advantages and disadvantages related to synchronous motors are explained below: It also useful when the motor is required to drive another alternator to supply at a different frequency as in frequency changes ; Synchronous motors can be constructed with wider air gaps than induction motors which makes these motors mechanically more stable; In synchronous motors

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Advantages Application of Synchronous Motor your

The advantages and disadvantages of the synchronous motor are as under: Advantages of Synchronous Motor. 1. It can be operated under a wide range of power factors, both lagging and leading. Hence, it can be used for power factor correction, in addition to supplying torque to drive loads. 2. Most synchronous motors are rated between 150 kW and

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Advantages & Disadvantages of Synchronous Motors

24/4/2016· Synchronous motors are rarely used in industries for drive applications. They are generally used as power factor correction device. In industries they are employed to improve the power factor of the system. Some of the advantages and disadvantages related to synchronous motors are explained below: Advantage or Merits: One of the major advantage of using synchronous motor is the ability to

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Synchronous Motors Electric machine

Advantages Higher Efficiency 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. Constant Speed Synchronous

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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

for the mill bearings, the mechanical mill brake control and the visualization of all parts of the drive system. Figure 1 shows a picture of a ringmotor used in copper concentrators. The poles of the rotor are directly mounted on the surface of the mill flange. Typically, the synchronous motors used in SAG mills have a power higher than 10 MW

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What Is Synchronous Motor and Its Advantages and

Advantages of Synchronous Motor. It can be operated under a wide range of power factors both lagging and leading. Hence, it can be used for power factor correction, in addition to supplying torque to drive loads. Most synchronous motors are rated between 150 kW and 15 kW and run at speeds from 150 to 1800 rpm. It is less costly in certain kW and speed ranges i.e. for 35 to 350 kW rating at

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TECHNICAL AND COMMERCIAL BENEFITS OF GEARLESS MILL

for the mill bearings, the mechanical mill brake control and the visualization of all parts of the drive system. Figure 1 shows a picture of a ringmotor used in copper concentrators. The poles of the rotor are directly mounted on the surface of the mill flange. Typically, the synchronous motors used in SAG mills have a power higher than 10 MW

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Evaluation of synchronous motors on grinding mills IEEE

17/4/2014· Abstract: Synchronous motors continue to be a viable alternative to induction motors because of efficiency advantages. Long used for providing leading kVARs for PF improvement and helping with the device switching in Load Commutated Inverter (LCI) drives, these machines are efficient prime movers for large Mill applications. Both in motor efficiency and in low base speed

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Synchronous Motors Electric machine

Advantages Higher Efficiency 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. Constant Speed Synchronous

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What's driving milling? Australian Mining

24/9/2012· As the grinding process is not highly dynamic, low speed synchronous motors in mill drives can use brushless excitation. This eliminates wearing parts, helping to

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Synchronous Motor an overview ScienceDirect Topics

The advantages of the synchronous motor are the ease with which the power factor can be controlled and the constant rotational speed of the machine, irrespective of the applied load. Synchronous motors, however, are generally more expensive and a d.c. supply is a necessary feature of the rotor excitation. These disadvantages, coupled with the requirement for an independent starting mode, make

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Synchronous Motors: Applications And Working Principle

22/10/2020· Application of Synchronous Motors. Synchronous motor having no load connected to its shaft is used for power factor improvement. Owing to its characteristics to behave at any electrical power factor, it is used in power system in situations where static capacitors are expensive.; Synchronous motor finds application where operating speed is less (around 500 rpm) and high power is required.

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Industrial Drives and Applications EEENotes2U

SYNCHRONOUS MOTOR DRIVES: Operation form faced frequency supply, synchronous motor variable speed drives, and variable frequency control of multiple synchronous motors. Self-controlled synchronous motor drive employing load commutated thruster inverter. Unit 8 INDUSTRIAL DRIVES: Rolling mill drives, cement mill drives, paper mill dries and textile mill drives. HOW TO SCORE

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Increasing availability through advanced Gearless Drive

Figure 2 Top view of two (2) gearless drive synchronous motors; one is in the maintenance position with a shifted stator: 4: When using a motor without bearings, the whole drive system only has two (2) pulley bearings and no couplings versus conventional design which requires twelve (12) bearings and two (2) couplings (figure 3). A low-speed synchronous motor with bearings would need two

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MAHALAKSHMI

synchronous motor drive. The advantages of brushless D.C. motor are low cost, simplicity reliability and good performance PART-B 1)Explain the concept of open loop V\F control of synchronous motor. Open Loop Volts/Hz Control: Synchronous speed is directly proportional to frequency. So that the rotor always keeps track the changes of speed. Here all the machines are connected in parallel to the

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