THE MODELLING OF THE ELECTROMECHANICAL MULTILAYER
... B4.Flexural-flexural double –mode bar. B5. Mode annular plate actuator. The ultrasonic micromotors and microactuators advantages include [1] : - both high torque and high efficiency at low speed; - the possibility of direct drive; -ability to maintain its own position; - good control characteristics ...
... B4.Flexural-flexural double –mode bar. B5. Mode annular plate actuator. The ultrasonic micromotors and microactuators advantages include [1] : - both high torque and high efficiency at low speed; - the possibility of direct drive; -ability to maintain its own position; - good control characteristics ...
Voltage Rectification by a SQUID Ratchet - Physik Uni
... finite range of F values spanning a voltage plateau for a given value of n is obtained by letting x1 take any real value. After comparing the structure of plateaus predicted by Eq. (6) with that obtained numerically for the case of current sources, we have found that, as in the symmetric case [15], ...
... finite range of F values spanning a voltage plateau for a given value of n is obtained by letting x1 take any real value. After comparing the structure of plateaus predicted by Eq. (6) with that obtained numerically for the case of current sources, we have found that, as in the symmetric case [15], ...
AN1946
... which will be discussed in the next section. These methods also take into account the fact that in most cases the neutral point of the motor is not accessible; either because the motor is delta-wound, or because no wire is extracted. In any case the methods presented in the next section allow the de ...
... which will be discussed in the next section. These methods also take into account the fact that in most cases the neutral point of the motor is not accessible; either because the motor is delta-wound, or because no wire is extracted. In any case the methods presented in the next section allow the de ...
Digistart CS User Guide
... The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter (internally bypassed, or installed with an external bypass contactor). The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's ratin ...
... The AC53b utilisation code defines the current rating and standard operating conditions for a bypassed soft starter (internally bypassed, or installed with an external bypass contactor). The soft starter’s current rating determines the maximum motor size it can be used with. The soft starter's ratin ...
analysis guide for variable frequency drive operated
... excessive equipment vibrations, reduced in-between maintenance intervals, and premature equipment failure. Resonance conditions with centrifugal pump applications can be divided into the four categories of lateral rotordynamics, torsional rotordynamics, structural dynamics, and acoustic resonance. E ...
... excessive equipment vibrations, reduced in-between maintenance intervals, and premature equipment failure. Resonance conditions with centrifugal pump applications can be divided into the four categories of lateral rotordynamics, torsional rotordynamics, structural dynamics, and acoustic resonance. E ...
DIAGNOSTIC NEWS What Can Go Wrong with Turbo Generator Rotor Windings
... causing coil misalignment, shorted turns or shorted coils. Poorly placed blocking often aggravates this condition. Radial displacement of coils in the end winding can cause high compressive loads on slot liners, particularly at slot ends. Combined with axial copper expansion this leads to liner abra ...
... causing coil misalignment, shorted turns or shorted coils. Poorly placed blocking often aggravates this condition. Radial displacement of coils in the end winding can cause high compressive loads on slot liners, particularly at slot ends. Combined with axial copper expansion this leads to liner abra ...
2014 RA420 PEMC2014 135-Ozsoy
... Experimental setup in Fig. 4 is used in the experiments. Squirrel cage induction machine (SCIM) is driven by a commercial inverter representing the wind. Commercial drive adjusts the speed of DFIG. DFIG plate data is given in table 1; gain and cut off frequency of the controllers are given in Table ...
... Experimental setup in Fig. 4 is used in the experiments. Squirrel cage induction machine (SCIM) is driven by a commercial inverter representing the wind. Commercial drive adjusts the speed of DFIG. DFIG plate data is given in table 1; gain and cut off frequency of the controllers are given in Table ...
Declaration Form for Overhead Lines
... If bare…………………………………….…4.6 meters If insulated…………………………………..4.0 meters For high voltage line above 11,000 volts …...5.2 meters (2) Does the extra high voltage line has clearance above ground not less than 5.2 meters plus 0.3 meters for every 33,000 or part thereof by which the voltage of the line e ...
... If bare…………………………………….…4.6 meters If insulated…………………………………..4.0 meters For high voltage line above 11,000 volts …...5.2 meters (2) Does the extra high voltage line has clearance above ground not less than 5.2 meters plus 0.3 meters for every 33,000 or part thereof by which the voltage of the line e ...
model sr540 optical chopper
... affected by load variations, which normally would change the current and so change the voltage that is applied to the motor. This improves frequency stability of the chopper and ...
... affected by load variations, which normally would change the current and so change the voltage that is applied to the motor. This improves frequency stability of the chopper and ...
KSE 210 PNP Epitaxial Silicon Transistor Absolute Maximum Ratings
... or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
... or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
AND8019/D Offline Converter Provides 5.0 Volt, 1.0 Amp
... ON Semiconductor’s NCP1000 series of offline converters offers a low cost, high efficiency power source for low power, electronic equipment. It serves the same function as small, line frequency transformers, but with the added benefits of line and load regulation, transient suppression, reduction in ...
... ON Semiconductor’s NCP1000 series of offline converters offers a low cost, high efficiency power source for low power, electronic equipment. It serves the same function as small, line frequency transformers, but with the added benefits of line and load regulation, transient suppression, reduction in ...
ACT4088US-T - Active-Semi
... 5) Power supply sequencing. By connecting a small capacitor from EN to GND, the 2µA current source and 1.24V threshold can provide a stable and predictable delay between startup of multiple power supplies. For example, a startup delay of roughly 10mS is provided using 150nF, and roughly 20mS by usin ...
... 5) Power supply sequencing. By connecting a small capacitor from EN to GND, the 2µA current source and 1.24V threshold can provide a stable and predictable delay between startup of multiple power supplies. For example, a startup delay of roughly 10mS is provided using 150nF, and roughly 20mS by usin ...
103_unit_5
... The oscilloscope is used to measure the amplitude of a voltage, displayed on the vertical axis, against time, which is displayed on the horizontal axis. The vertical and horizontal axis have marked graduated scales, in each direction, calibrated into major and minor divisions. A range switch, in con ...
... The oscilloscope is used to measure the amplitude of a voltage, displayed on the vertical axis, against time, which is displayed on the horizontal axis. The vertical and horizontal axis have marked graduated scales, in each direction, calibrated into major and minor divisions. A range switch, in con ...
LDS8641 - IXYS Power
... where Vd ≤ 150 mV, and the regulated currents cannot be maintained, the low dropout PowerLite™ Current Regulator switches the charge pump into 2-x mode (after a fixed delay time of about 800μs). In 2-x mode, the charge pump’ output voltage is approximately equal to 2 times the input supply voltage ( ...
... where Vd ≤ 150 mV, and the regulated currents cannot be maintained, the low dropout PowerLite™ Current Regulator switches the charge pump into 2-x mode (after a fixed delay time of about 800μs). In 2-x mode, the charge pump’ output voltage is approximately equal to 2 times the input supply voltage ( ...
43 Power quality improvement by using multi converter unified
... strikes on transmission lines, switching of capacitor banks, and various network faults can also cause PQ problems, such as transients, voltage sag/swell, and interruption. On the other hand, an increase of sensitive loads involving digital electronics and complex process controllers requires a pure ...
... strikes on transmission lines, switching of capacitor banks, and various network faults can also cause PQ problems, such as transients, voltage sag/swell, and interruption. On the other hand, an increase of sensitive loads involving digital electronics and complex process controllers requires a pure ...
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.