Master-slave switchover application
... terminal X177.25 /26. G2 is the slave, is operated in the closed-loop current controlled mode and receives a current or torque setpoint from G1. In this operating mode it is absolutely essential to ensure that Ku1 is closed, as otherwise, drive G2 can accelerate uncontrollably as there is no closed- ...
... terminal X177.25 /26. G2 is the slave, is operated in the closed-loop current controlled mode and receives a current or torque setpoint from G1. In this operating mode it is absolutely essential to ensure that Ku1 is closed, as otherwise, drive G2 can accelerate uncontrollably as there is no closed- ...
Chapter 3. LOAD ELECTRICAL CHARACTERISTICS 3.1 Fixed
... provided by manufacturers. More often, data must be read from a single performance curve which relates pressure (head), flowrate, efficiency, and speed. Therefore, the nonlinear shape of motor/pump I-V curves must be approximated by a number of separate straight line segments. The endpoints of each ...
... provided by manufacturers. More often, data must be read from a single performance curve which relates pressure (head), flowrate, efficiency, and speed. Therefore, the nonlinear shape of motor/pump I-V curves must be approximated by a number of separate straight line segments. The endpoints of each ...
ert 457 – design of automation systems
... The starting torque generated by the motor just as the voltage is applied. T = 1.148 Nm The maximum speed at a torque of zero. Power delivered by the motor. ...
... The starting torque generated by the motor just as the voltage is applied. T = 1.148 Nm The maximum speed at a torque of zero. Power delivered by the motor. ...
HydroKinetic_ME438_Final v2.4
... Gearing available for the motor included two options. A gearing ratio of 47.1 to 1 was chosen so that the torque needed was slightly lower than the minimum torque available from the paddles given the water current velocity. A large difference in the torques reduces the amount of voltage and power th ...
... Gearing available for the motor included two options. A gearing ratio of 47.1 to 1 was chosen so that the torque needed was slightly lower than the minimum torque available from the paddles given the water current velocity. A large difference in the torques reduces the amount of voltage and power th ...
Solid State Drives 7th Semester
... condition. Motor temperature then reaches a steady state value. Steady state temperature depends on power loss, which in turn depends on the output power of the machine. Since temperature rise has a direct relation with the output power, it is termed thermal loading on the machine. Steady state temp ...
... condition. Motor temperature then reaches a steady state value. Steady state temperature depends on power loss, which in turn depends on the output power of the machine. Since temperature rise has a direct relation with the output power, it is termed thermal loading on the machine. Steady state temp ...
Motor Technologies
... About that time; however, AC power supply systems came into general use and the popularity of the DC motor declined in favor of the less expensive AC induction motor. More recently, the particular characteristics of DC motors, notably high starting torque and controllability, have led to their appli ...
... About that time; however, AC power supply systems came into general use and the popularity of the DC motor declined in favor of the less expensive AC induction motor. More recently, the particular characteristics of DC motors, notably high starting torque and controllability, have led to their appli ...
Brushless Motors
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
Brushless Motors - PowerPoint Presentation (2.7MB PPT File)
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
... Io = Noload Current of the Motor, derived from running a motor WOT without a prop at varying voltages. Io can be expressed with an associated Voltage and should be. Kv = K value or voltage constant, the expressed value where the rpm can be surmised by a given voltage. For a 2000 Kv motor an input vo ...
25471_energy_conversion_11
... larger internal voltage EA required for lagging loads than for leading loads • Therefore a larger field current required with lagging loads to get same terminal voltage EA=Kφω • Alternatively for a given IF and load current , Vφ is lower for lagging loads & higher for leading loads • In real synchro ...
... larger internal voltage EA required for lagging loads than for leading loads • Therefore a larger field current required with lagging loads to get same terminal voltage EA=Kφω • Alternatively for a given IF and load current , Vφ is lower for lagging loads & higher for leading loads • In real synchro ...
EET-222(6)-ELECTRICAL MC-II
... larger internal voltage EA required for lagging loads than for leading loads • Therefore a larger field current required with lagging loads to get same terminal voltage EA=Kφω • Alternatively for a given IF and load current , Vφ is lower for lagging loads & higher for leading loads • In real synchro ...
... larger internal voltage EA required for lagging loads than for leading loads • Therefore a larger field current required with lagging loads to get same terminal voltage EA=Kφω • Alternatively for a given IF and load current , Vφ is lower for lagging loads & higher for leading loads • In real synchro ...
Automatic Speed Controller of a DC Motor Using
... DC motors have many applications in many fields of industrial, commercial and other activities, such as robotics, automobiles, servomechanisms etc. The electric drive systems used in many industrial applications require higher performance, reliability, variable speed due to their ease of controllabi ...
... DC motors have many applications in many fields of industrial, commercial and other activities, such as robotics, automobiles, servomechanisms etc. The electric drive systems used in many industrial applications require higher performance, reliability, variable speed due to their ease of controllabi ...
AC motor - induction2
... •Any motor torque load above the breakdown torque will stall the motor. ...
... •Any motor torque load above the breakdown torque will stall the motor. ...
A Design Study of Dual-Stator Permanent Magnet Brushless DC Motor
... stator and the inside magnets compose an outer-rotor BLDC; the outer stator and the outside magnets compose an inner-rotor BLDC; both of the motors share the same rotor core. Due to the series magnetic circuit structure of the DSBLDC, the inside and outside magnets are oriented in the same magnetiza ...
... stator and the inside magnets compose an outer-rotor BLDC; the outer stator and the outside magnets compose an inner-rotor BLDC; both of the motors share the same rotor core. Due to the series magnetic circuit structure of the DSBLDC, the inside and outside magnets are oriented in the same magnetiza ...
national Journal of Engineering Research and Applications (IJERA
... Abstract:-Low frequency oscillations, high torque pulsation are a major disadvantage of three phase permanent-magnet motor configurations. Choosing the proper number of stator slots and winding distribution as well as increasing number of phases are among the possible solutions for reducing torque p ...
... Abstract:-Low frequency oscillations, high torque pulsation are a major disadvantage of three phase permanent-magnet motor configurations. Choosing the proper number of stator slots and winding distribution as well as increasing number of phases are among the possible solutions for reducing torque p ...
Effective Estimation of Induction Motor Field Efficiency Based on On-site Measurements
... torque method offers the most accurate field efficiency evaluation method, however, it is not suitable for field evaluation because this process involves the removal of motor from service to place it on a test stand and couple it to the dynamometer. It can be seen that this method is impractical and ...
... torque method offers the most accurate field efficiency evaluation method, however, it is not suitable for field evaluation because this process involves the removal of motor from service to place it on a test stand and couple it to the dynamometer. It can be seen that this method is impractical and ...
Traction Control and Stability Assist
... vehicles equipped with the Advance Trac stability assist system controls the ABS, traction control and engine control systems to maintain vehicle control during deceleration, acceleration and vehicle maneuvers • The module also controls electronic brake distribution (EBD) which controls rear brake ...
... vehicles equipped with the Advance Trac stability assist system controls the ABS, traction control and engine control systems to maintain vehicle control during deceleration, acceleration and vehicle maneuvers • The module also controls electronic brake distribution (EBD) which controls rear brake ...
Design of a 4-pole Line Start Permanent Magnet Synchronous Motor
... B. Verification and utilization of the model This model has been implemented in Simulink, Matlab. The maximum stator current at start can be checked and compared to the value from the induction motor. The two values have to be in the same range. As the model is analytical, the start can be simulated ...
... B. Verification and utilization of the model This model has been implemented in Simulink, Matlab. The maximum stator current at start can be checked and compared to the value from the induction motor. The two values have to be in the same range. As the model is analytical, the start can be simulated ...
EE 1403743
... these features are suitable for modern electric drive applications which are energy efficient in variable speed operation under weight and volume control [1]. The additional degrees of freedom in multi phase system also enable to inject harmonic currents or supply multi motors from a single inverter ...
... these features are suitable for modern electric drive applications which are energy efficient in variable speed operation under weight and volume control [1]. The additional degrees of freedom in multi phase system also enable to inject harmonic currents or supply multi motors from a single inverter ...
File
... power factor is low and consequently the starting torque is small. When resistance is added to the rotor circuit, the rotor power factor is improved which results in improved starting torque. As rotor bars of squarel cage rotors are permanently shortcircuited, it is not possible to add any exter ...
... power factor is low and consequently the starting torque is small. When resistance is added to the rotor circuit, the rotor power factor is improved which results in improved starting torque. As rotor bars of squarel cage rotors are permanently shortcircuited, it is not possible to add any exter ...
Installation Instructions For SLO
... Dangerous voltages, currents, temperatures, and energy levels exist within this unit, on certain accessible terminals, and at the motor. NEVER operate the unit with its protective cover removed! Exercise caution when installing and using this unit. Only qualified personnel should attempt to install ...
... Dangerous voltages, currents, temperatures, and energy levels exist within this unit, on certain accessible terminals, and at the motor. NEVER operate the unit with its protective cover removed! Exercise caution when installing and using this unit. Only qualified personnel should attempt to install ...
WellPilot® Controllers for Rod Pump Optimization
... The ideal balance between production supply and pump speed. For wells with inconsistent reservoir flow, high gas content, sand infiltration, or the potential for liquids to freeze, repeatedly stopping the well to control pump-off may not be an effective option. In conditions like these, WellPilot va ...
... The ideal balance between production supply and pump speed. For wells with inconsistent reservoir flow, high gas content, sand infiltration, or the potential for liquids to freeze, repeatedly stopping the well to control pump-off may not be an effective option. In conditions like these, WellPilot va ...
Chapter 21 Electric Motors Advantages
... Single-Phase Motors con’t In general, the construction of single-phase motors is similar to that for three-phase motors, consisting of a fixed stator, a solid rotor, and a shaft carried on bearings. The induction principle discussed earlier applies also to single-phase motors. Differences occur beca ...
... Single-Phase Motors con’t In general, the construction of single-phase motors is similar to that for three-phase motors, consisting of a fixed stator, a solid rotor, and a shaft carried on bearings. The induction principle discussed earlier applies also to single-phase motors. Differences occur beca ...
ERV500–3000 Start-up Form and Checklist
... Are belt alignment and tension correct? Are air filters installed, clean or replaced? If filters are equipped with optional differential pressure switch, check desired setpoint does not exceed factory setting of 0.8” w.c. [200 Pa]. Have coils been checked for fin damage and dirt, straightened and cl ...
... Are belt alignment and tension correct? Are air filters installed, clean or replaced? If filters are equipped with optional differential pressure switch, check desired setpoint does not exceed factory setting of 0.8” w.c. [200 Pa]. Have coils been checked for fin damage and dirt, straightened and cl ...
Neptune 200KW-650KW Load Bank Product Brochure
... absorption of inertial motors with reverse power protection of generators and other load bank applications are achieved with the Simplex Neptune Load Bank. The unit capacity range of the Neptune is 200-650KW, resistive, unity power factor. Reactive units (inductive or capacitive) are also available. ...
... absorption of inertial motors with reverse power protection of generators and other load bank applications are achieved with the Simplex Neptune Load Bank. The unit capacity range of the Neptune is 200-650KW, resistive, unity power factor. Reactive units (inductive or capacitive) are also available. ...
here
... The motor torque is produced by the magnetic interaction between the induction field created by the permanent magnet rotor and the current flow in the stator coil. The circumferential value of the torque depends on the product of the actual values of the two aforementioned factors, that is, assuming ...
... The motor torque is produced by the magnetic interaction between the induction field created by the permanent magnet rotor and the current flow in the stator coil. The circumferential value of the torque depends on the product of the actual values of the two aforementioned factors, that is, assuming ...
Dynamometer
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A dynamometer or ""dyno"" for short, is a device for measuring force, torque, or power. For example, the power produced by an engine, motor or other rotating prime mover can be calculated by simultaneously measuring torque and rotational speed (RPM).A dynamometer can also be used to determine the torque and power required to operate a driven machine such as a pump. In that case, a motoring or driving dynamometer is used. A dynamometer that is designed to be driven is called an absorption or passive dynamometer. A dynamometer that can either drive or absorb is called a universal or active dynamometer.In addition to being used to determine the torque or power characteristics of a machine under test (MUT), dynamometers are employed in a number of other roles. In standard emissions testing cycles such as those defined by the United States Environmental Protection Agency (US EPA), dynamometers are used to provide simulated road loading of either the engine (using an engine dynamometer) or full powertrain (using a chassis dynamometer). In fact, beyond simple power and torque measurements, dynamometers can be used as part of a testbed for a variety of engine development activities, such as the calibration of engine management controllers, detailed investigations into combustion behavior, and tribology.In the medical terminology, hand-held dynamometers are used for routine screening of grip and hand strength, and the initial and ongoing evaluation of patients with hand trauma or dysfunction. They are also used to measure grip strength in patients where compromise of the cervical nerve roots or peripheral nerves is suspected.In the rehabilitation, kinesiology, and ergonomics realms, force dynamometers are used for measuring the back, grip, arm, and/or leg strength of athletes, patients, and workers to evaluate physical status, performance, and task demands. Typically the force applied to a lever or through a cable is measured and then converted to a moment of force by multiplying by the perpendicular distance from the force to the axis of the level.