Click - INTEGRA Engineering India Ltd.
... A low voltage differential transformer (LVDT) is used to register mechanical signal generated by movement of Tongue Roller and Voltage differential generated by the LVDT is used for increasing or decreasing the Servo Motor Speed. This in turn varies the draft in he main zone making sliver thicker or ...
... A low voltage differential transformer (LVDT) is used to register mechanical signal generated by movement of Tongue Roller and Voltage differential generated by the LVDT is used for increasing or decreasing the Servo Motor Speed. This in turn varies the draft in he main zone making sliver thicker or ...
IRMCF3xx Series Controller Dynamics and Tuning
... The speed controller is the most outer-loop controller in a cascaded speed drive system. Figure 6 shows the cascaded control dynamics of the speed control loop. In practice, the inner current loop has much higher control bandwidth than the speed controller, therefore for speed control dynamic purpos ...
... The speed controller is the most outer-loop controller in a cascaded speed drive system. Figure 6 shows the cascaded control dynamics of the speed control loop. In practice, the inner current loop has much higher control bandwidth than the speed controller, therefore for speed control dynamic purpos ...
PMSM electrical parameters measurement
... The vector control, also known as the field-oriented control (FOC), of a permanent magnet synchronous motor (PMSM) is the algorithm often used in today’s advanced motor control drives. Such advanced motor control algorithms require the setting of motor electrical parameters for its proper functional ...
... The vector control, also known as the field-oriented control (FOC), of a permanent magnet synchronous motor (PMSM) is the algorithm often used in today’s advanced motor control drives. Such advanced motor control algorithms require the setting of motor electrical parameters for its proper functional ...
TechTopics No. 20 - Power factor correction capacitor
... Using a solid-state (“soft”) starter Using open-transition on reduced-voltage starters (hightransient torques) If the motor can be restarted before it has a chance to slow down appreciably (high-transient torques) If the motor load is a high-inertia load (long deceleration time and self-exci ...
... Using a solid-state (“soft”) starter Using open-transition on reduced-voltage starters (hightransient torques) If the motor can be restarted before it has a chance to slow down appreciably (high-transient torques) If the motor load is a high-inertia load (long deceleration time and self-exci ...
Document
... To reduce speed, the firing angle must be increased, this will immediately reduce Va. Interruptions in the instantaneous source current through the thyristors increase, and the motor “coasts” through the “no current” intervals to a lower speed. Average current Ia remains positive at all times. As sp ...
... To reduce speed, the firing angle must be increased, this will immediately reduce Va. Interruptions in the instantaneous source current through the thyristors increase, and the motor “coasts” through the “no current” intervals to a lower speed. Average current Ia remains positive at all times. As sp ...
Motor_Run_Capacitors_--_Web_Page-5
... although sometimes you can tell just by looking at them. The capacitor will typically bulge or burst open. On testing equipment, there will be a reading of 5% or less. ...
... although sometimes you can tell just by looking at them. The capacitor will typically bulge or burst open. On testing equipment, there will be a reading of 5% or less. ...
Chapter 19 Review Current and Resistance
... 1. Length - the longer the wire, the higher the resistance 2. Cross section – the “fatter” the wire, the lower the resistance 3. Material – some materials are better conductors than others 4. Temperature – the higher the temperature, the higher the resistance ...
... 1. Length - the longer the wire, the higher the resistance 2. Cross section – the “fatter” the wire, the lower the resistance 3. Material – some materials are better conductors than others 4. Temperature – the higher the temperature, the higher the resistance ...
PDF
... Current interruption will occur in vacuum interrupters, one interrupter per phase. It will be possible to replace one or all bushings without any re-alignment or adjustment of the vacuum interrupters or operating mechanism. The interrupting time will be 0.042 seconds ...
... Current interruption will occur in vacuum interrupters, one interrupter per phase. It will be possible to replace one or all bushings without any re-alignment or adjustment of the vacuum interrupters or operating mechanism. The interrupting time will be 0.042 seconds ...
Document
... Type of Electric Motors AC Motors – Synchronous motor • Constant speed fixed by system frequency • DC for excitation and low starting torque: suited for low load applications • Can improve power factor: suited for high electricity use systems • Synchronous speed (Ns): Ns = 120 f / P ...
... Type of Electric Motors AC Motors – Synchronous motor • Constant speed fixed by system frequency • DC for excitation and low starting torque: suited for low load applications • Can improve power factor: suited for high electricity use systems • Synchronous speed (Ns): Ns = 120 f / P ...
DL01420622071
... such as in the cases of uninterruptible power supplies (UPS‟s) and ac power supplies, Current Control results in an increased stability of the control loop and in intrinsic short-circuit and overload protection [4-5]. These requirements can be fulfilled, while keeping the advantages of the VSC (volt ...
... such as in the cases of uninterruptible power supplies (UPS‟s) and ac power supplies, Current Control results in an increased stability of the control loop and in intrinsic short-circuit and overload protection [4-5]. These requirements can be fulfilled, while keeping the advantages of the VSC (volt ...
Simulation of Induction Motor Characteristics Using A Circle Diagram
... All motor’s performances, which determine its condition (starting, operating and control) is possible to obtain from experiments. But to do so, it is necessary to have corresponding equipment, a lot of time and energy, especially for high-power motors. That reasons causes difficulties for calculatio ...
... All motor’s performances, which determine its condition (starting, operating and control) is possible to obtain from experiments. But to do so, it is necessary to have corresponding equipment, a lot of time and energy, especially for high-power motors. That reasons causes difficulties for calculatio ...
K Direct Torque Control of Induction Motor Using Space
... stator which in turn causes the rotor to turn. It is called synchronous because at steady state the speed of the rotor is the same as the speed of the rotating magnetic field in the stator. By way of contrast, the induction motor does not have any direct supply onto the rotor; instead, a secondary c ...
... stator which in turn causes the rotor to turn. It is called synchronous because at steady state the speed of the rotor is the same as the speed of the rotating magnetic field in the stator. By way of contrast, the induction motor does not have any direct supply onto the rotor; instead, a secondary c ...
![LectureOutline-Circuits [Compatibility Mode]](http://s1.studyres.com/store/data/008795108_1-518ef7d981aabafef7ae5b5f16796a62-300x300.png)
LectureOutline-Circuits [Compatibility Mode]
... There are many circuits in which more than one device is connected to a voltage source. Series wiring means that the devices are connected in such a way that there is the same electric current through each device. ...
... There are many circuits in which more than one device is connected to a voltage source. Series wiring means that the devices are connected in such a way that there is the same electric current through each device. ...
Electromagnetism: The Motor Lab Student Version Key Concepts
... Electricity is the effect of the interactions between objects containing electric currents, or the response of object with an electric field of energy. Magnetism is used to describe how materials respond to a magnetic field. Electromagnetism combines these two ideas but it only means that the ...
... Electricity is the effect of the interactions between objects containing electric currents, or the response of object with an electric field of energy. Magnetism is used to describe how materials respond to a magnetic field. Electromagnetism combines these two ideas but it only means that the ...
Low Voltage and Medium Voltage Variable Frequency Drives
... sold in 1996 in North America and this number is expected to reach 500 in 1997. There are four manufacturers of medium voltage VFDs in North America and this number is expected to increase to six by the end of 1997. All manufacturers offer both air and liquid cooled VFDs depending on size and custo ...
... sold in 1996 in North America and this number is expected to reach 500 in 1997. There are four manufacturers of medium voltage VFDs in North America and this number is expected to increase to six by the end of 1997. All manufacturers offer both air and liquid cooled VFDs depending on size and custo ...
AN ELECTRONICALLY ISOLATED 12
... harmonics are popular because of their simplicity but are bulky and expensive. Autotransformer techniques require additional external magnetic components that are bulky and add to the cost of the system. A new electronically isolated 12-pulse autotransformer topology that does not need bulky externa ...
... harmonics are popular because of their simplicity but are bulky and expensive. Autotransformer techniques require additional external magnetic components that are bulky and add to the cost of the system. A new electronically isolated 12-pulse autotransformer topology that does not need bulky externa ...
Stepper motor
A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.