Processed Material:  Magnetite Ore

Mine Method:   Surface

Product Size:   0-10,10-50mm

Work Time:   10h

Ore Density:   2.6t/m³

Capacity:   4500t/d

Grade:   53.8%

The evaluation by customer: Because of our high requirements for final particule granularity, I have followed the views of LIMING engineer with a two-stage crushing - a PE Jaw Crusher for primary crushing and two Hydraulic Cone Crusher HST160 for secondary crushing. Quite stable performance, also the production makes me satisfied. To my most pleasant surprise, the intelligent operation of machine has saved me a lot of time and also costs.


Thank you for your interest in LM Heavy Industry. If you want to learn more about our Crushers and Industrial grinding mills, Contact us Now to find out what we can do for you next project !

  • SiC High-speed MV Direct Drive vs. Si Low-speed MV Drive - NIST

    Sep 4, 2014 Power. Density. 1 A 3 MW Transformer +. Rectifier. 168”W x 60”Dx81”H. (13.38 m3). 102”W x 37”D x 72”H. (4.47 m3). 0.22 kW/dm3. (ratio 1.0). 1 B. 2.2. MW . SiC 2L-VSI. (T j. = 200 oC). 4.73 kW 99.53%. 20”W x 29”D x 72”H. (0.68 m3). 1.47 kW/dm3. Load. Low speed motor + gearbox + compressor.

  • advanced wind energy converters using electronic power conversion

    This thesis details the research work on developing the variable speed direct drive wind power . 5 power angle between VSI output and grid. K„, ratio of rectifier d.c. voltage to inverter a.c output voltage a, transformer ratio delay angle of SCR inverter . 5.7.2 VSI power factor and AC output voltage control characteristics.


    variable speed drive (VSD) manufacturer and the process designer of the end-user. It is generally interpreted as . VSD and the rotating masses of the process. It might be helpful to calculate the energy-to-power ratio .. especially the ones with controlled front-ends (VSI with active front-end and LCI with controlled thyristor 

  • Control of a Stand-Alone Variable Speed Wind Energy - MDPI

    Apr 11, 2013 Maximum power extraction from wind turbine can be achieved when the turbine operate at maximum Cp (Cp-opt). Therefore, it is necessary to adjust the rotor speed at optimum value of tip speed ratio (λopt) with wind speed variation. Wind Turbine. PMSG. Uncontrolled. Rectifier. DC-DC Boost. 3-phase VSI.

  • VSI No.6 Light vehicle modifions Rev 3 November 2013

    Nov 3, 2013 Fitting a 3.45 ratio differential into a vehicle originally fitted with a 2.77 ratio differential. Examples not requiring certifiion: •. Alteration of gearbox ratio if final drive ratio not affected. •. Where speed sensing is independent of driveline. •. Where change of final drive ratio includes speedometer correction 

  • Speed and Power Control of a Slip Energy Recovery Drive Using

    Abstract. This paper introduces the speed and power control a slip energy recovery drive using voltage-source PWM converter with help of a voltage source inverter (VSI) based on a current-controlled technique. In order to keep the The choice of the turns-ratio of the optional transformer is based on a compromise 


    variable speed drive (VSD) manufacturer and the process designer of the end-user. It is generally interpreted as . VSD and the rotating masses of the process. It might be helpful to calculate the energy-to-power ratio .. especially the ones with controlled front-ends (VSI with active front-end and LCI with controlled thyristor 

  • a survey on variable-speed wind turbine system - CiteSeerX

    the power quality. Furthermore, with constant speed there is only one wind velocity that results in an optimum tip- speed ratio. Therefore, the wind turbine is often .. winding is connected to the network through a four- quadrant power converter comprised of two back-to-back. PWM-VSI. The SCR converter can be used but 

  • Voltage source inverters for high-power, variable - IEEE Xplore

    rather than a directly connected VSI that has to operate at a lower modulation ratio at higher power. In some cases, multipulse .. Fig. 1 for unity DE'F operation. Using the Mu curve in. Fig. 5a and the V, curve in Fig. 1 can obtain SUR charac- teristics, as plotted in Fig. 66. SPWbl VSI waveforms at 1 .O p.u. wind speed. 2500 r.

  • Comparison of converter efficiency in large variable speed wind

    Gen. wind. ratio n. 2.63. Rotor side filter. L,. 60. [PHI. Only for super synchronous speed. measure. Hence, the active and reactive power equals: P, = Xe(vs 'i:) Fig. 3 shows the two considered power converters, the two-level back-to-back VSI and the three-level back-to- back VSI. In order to evaluate the efficiency of the two.

  • VSI PWM inverter feed induction machine using Volts per Hertz

    machines to variable speed drive appliions where formally only dc motors where practical. A.c motors such as squirrel cage induction motor for example have a robust rotor construction; result in a cheaper motor and a higher power/weight ratio. Unfortunately, it is inflexible in speed when operated on a standard constant 

  • Power electronics - Wikipedia

    An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common appliion is the variable speed drive (VSD) 

  • Variable Frequency Drive or VFD - Electrical4u

    VFD is a power electronics based device which converts a basic fixed frequency, fixed voltage sine wave power (line power) to a variable frequency, variable output voltage used to control speed of induction motor(s). It regulates the speed of a three phase induction motor by controlling the frequency and voltage of the 

  • 8 : V/F Control Of VSI Fed Three-Phase Induction Motor (Theory

    8 (c) shows the block diagram of a V/f control of VSI fed three phase induction motor drive. In this according to the reference speed input command (Nr*) the reference frequency (f*) and reference voltage (V*) commands are calculated such that V/f ratio maintained to be constant. The reference commands V* and f* are given 

  • Control of Voltage Source Inverters using PWM - Semantic Scholar

    using PWM/SVPWM for Adjustable speed Drive Appliions” in a satisfactory manner. This project . 2.1.2 Full-Bridge VSI. Fig. 3 shows the power topology of a full-bridge VSI. This inverter is similar to the half-bridge inverter; however, a second leg provides the neutral point to the load. . modulation ratio) is defined as

  • Wind Turbine Control Methods - National Instruments

    Dec 22, 2008 The efficiency of a wind turbine is called the power coefficient, or . Theoretically, the power coefficient is calculated as the ratio of actual to ideal extracted power. You can find this calculation in Equation 2. Also, you can adjust by controlling the angle of attack, α, and the tip speed ratio. The calculation for 

  • Power Quality Control and Design of Power Converter for Variable

    Sep 9, 2013 For modeling of dynamic behavior of wind turbines, if the power coefficient ( ) that changes depending on the tip speed ratio and blade gap angle is placed in . In this study, in the PWM power converter circuit, a two-level voltage source rectifier (VSR) and in the two-level voltage source inverter (VSI) circuit, 

  • IREMOS Paper ID 5223 - ResearchGate

    Fig(b) and Fig.6(c) that in power optimization section for the low and moderate wind the generator speed has to change to keep maximum power coefficient. Fig.6(d) and. Fig.6(e) shows that the vector control strategy of VSC is very effective on decoupling electromagnetic torque and flux of SCIG. VSI. Current controller.

  • Speed Control Simulation for Induction Motor by Multi Level VSI-Fed

    This study presented the simulation studies on closed-loop speed control for 3-phase induction motor by applying V/F method. This induction motor is fed by three and five-level diode clamped Voltage Source Inverter (VSI). Sinusoidal pulse with modulation technique is used to control inverter power switches.