Power Plant Electrical Distribution Systems
... The exciter is typically a self-excited AC generator mounted on the same shaft as the rotor and turbine. Its output is rectified through a series of power diodes providing a DC current for the rotor field windings. Depending on the manufacturer, the exciter either uses collector rings and brushes to ...
... The exciter is typically a self-excited AC generator mounted on the same shaft as the rotor and turbine. Its output is rectified through a series of power diodes providing a DC current for the rotor field windings. Depending on the manufacturer, the exciter either uses collector rings and brushes to ...
Form-Wound Coils Random
... is impractical to use form coils. Random windings are made from a lower cost magnet wire that is film coated and round. With random windings, the mechanization of manufacturing is also increased to add to a lower cost. Generally, several spools of wire are used to form one turn. A special fixture is ...
... is impractical to use form coils. Random windings are made from a lower cost magnet wire that is film coated and round. With random windings, the mechanization of manufacturing is also increased to add to a lower cost. Generally, several spools of wire are used to form one turn. A special fixture is ...
16T ESC.qxd - You have reached ftp.hobbico.com
... Before you begin this step, the ESC should be connected to the throttle channel on the Rx, the Tx should already be adjusted, and the ESC switch should be in the off position (refer to Step 3 for Tx adjustment). 1) Connect the battery pack to the ESC, turn on the Tx, then the ESC. 2) NEUTRAL POINT: ...
... Before you begin this step, the ESC should be connected to the throttle channel on the Rx, the Tx should already be adjusted, and the ESC switch should be in the off position (refer to Step 3 for Tx adjustment). 1) Connect the battery pack to the ESC, turn on the Tx, then the ESC. 2) NEUTRAL POINT: ...
final year project 2 energy conversion from dc generator part in wind
... relationship between two variables and wind speed, based on field test data from a 2 m diameter wind turbine with a tail-fin furling system, and in reference to the recent revision of the International Electro technical Commission standard for small wind turbine design. Examples are given of fast ya ...
... relationship between two variables and wind speed, based on field test data from a 2 m diameter wind turbine with a tail-fin furling system, and in reference to the recent revision of the International Electro technical Commission standard for small wind turbine design. Examples are given of fast ya ...
Power Electronic Device Protection (VFD, Drive Protection)
... be marked to identify that branch-circuit protection shall be provided by fuses only (either high speed or branch circuit types). 2. The High Fault Current tests can be at any level of short-circuit current above the standard fault current tests. Significant damage to the drive is permitted – i.e. t ...
... be marked to identify that branch-circuit protection shall be provided by fuses only (either high speed or branch circuit types). 2. The High Fault Current tests can be at any level of short-circuit current above the standard fault current tests. Significant damage to the drive is permitted – i.e. t ...
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.