Volume 7, Issue 2, March-April 2016, pp. 78–90, Article ID:... Available online at
... Figure.9. It clearly shows that the Proposed-DTC scheme has fast and better stator current response due to change in load. ...
... Figure.9. It clearly shows that the Proposed-DTC scheme has fast and better stator current response due to change in load. ...
Electric Actuator Control
... Most reversing starters are furnished and configured with mechanical and electrical interlocks. This is a redundant system whose purpose is to ensure both starters will not energize at the same time. The motor power available in industrial facilities varies. Typically, three-phase motor power availa ...
... Most reversing starters are furnished and configured with mechanical and electrical interlocks. This is a redundant system whose purpose is to ensure both starters will not energize at the same time. The motor power available in industrial facilities varies. Typically, three-phase motor power availa ...
Electricity Training Course
... Calculate voltage and current imbalances in three-phase motors. Explain how variable-speed motors differ from ac induction motors. Describe basic motor replacement procedures. Read a motor nameplate. Use NEMA data to determine motor frame sizes and dimensions. Observe the proper safety p ...
... Calculate voltage and current imbalances in three-phase motors. Explain how variable-speed motors differ from ac induction motors. Describe basic motor replacement procedures. Read a motor nameplate. Use NEMA data to determine motor frame sizes and dimensions. Observe the proper safety p ...
KE2417381744
... proposed by choosing certain current reference values in the positive and negative sequences so that the torque and the dc voltage are kept detailing the control scheme of each converter while considering the effect of the crowbar protection. The control strategy is validated by means of simulation. ...
... proposed by choosing certain current reference values in the positive and negative sequences so that the torque and the dc voltage are kept detailing the control scheme of each converter while considering the effect of the crowbar protection. The control strategy is validated by means of simulation. ...
6 position wall switch for 2-speed evaporative coolers to control high
... installing switch. The installer of this switch must be technically qualified for this type of installation. A qualified electrician should check all wiring and circuit breakers and be sure that the cooler installation is effectively grounded. ...
... installing switch. The installer of this switch must be technically qualified for this type of installation. A qualified electrician should check all wiring and circuit breakers and be sure that the cooler installation is effectively grounded. ...
TEMP EFFECTS full paper Jan3.indd
... steady temperature increase in the motor windings. All metal conductors have a positive temperature coefficient of resistance. This means as temperature increases, the resistance of the material also increases as a function of the type of conductor used. Electric motors typically use ...
... steady temperature increase in the motor windings. All metal conductors have a positive temperature coefficient of resistance. This means as temperature increases, the resistance of the material also increases as a function of the type of conductor used. Electric motors typically use ...
IV. Basic concept of a torque estimation
... In the last fifty-sixty years AC wound motors have been widely used in many industrial tasks, such as material handling systems, pipe and paper mills, steel and rolling mills, container loading/unloading cranes, power plants, engineering workshops, etc. In the beginning, the control of these drives ...
... In the last fifty-sixty years AC wound motors have been widely used in many industrial tasks, such as material handling systems, pipe and paper mills, steel and rolling mills, container loading/unloading cranes, power plants, engineering workshops, etc. In the beginning, the control of these drives ...
Modelica Implementation of Field oriented Controlled 3 phase
... This paper focuses on the modeling of a cage induction machine drive under direct-field oriented control, also referred to as flux-vector control. The interest is to create a behavioral model of an induction machine drive under field orientation for sytem simulations since field-oriented control is ...
... This paper focuses on the modeling of a cage induction machine drive under direct-field oriented control, also referred to as flux-vector control. The interest is to create a behavioral model of an induction machine drive under field orientation for sytem simulations since field-oriented control is ...
changing magnetic field
... power is sent across long transmission lines at ______ HIGH voltages. WHY? If the voltage is high, the current will be relatively ____, low so there will be less power loss in the lines. ...
... power is sent across long transmission lines at ______ HIGH voltages. WHY? If the voltage is high, the current will be relatively ____, low so there will be less power loss in the lines. ...
Induction motor
An induction or asynchronous motor is an AC electric motor in which the electric current in the rotor needed to produce torque is obtained by electromagnetic induction from the magnetic field of the stator winding. An induction motor therefore does not require mechanical commutation, separate-excitation or self-excitation for all or part of the energy transferred from stator to rotor, as in universal, DC and large synchronous motors. An induction motor's rotor can be either wound type or squirrel-cage type.Three-phase squirrel-cage induction motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fans. Although traditionally used in fixed-speed service, induction motors are increasingly being used with variable-frequency drives (VFDs) in variable-speed service. VFDs offer especially important energy savings opportunities for existing and prospective induction motors in variable-torque centrifugal fan, pump and compressor load applications. Squirrel cage induction motors are very widely used in both fixed-speed and variable-frequency drive (VFD) applications. Variable voltage and variable frequency drives are also used in variable-speed service.