Materials - City Technology
... Develop the idea that the Penguin Race toy is a model of an electric circuit. In a circuit, current measures the rate at which electrons are flowing around. In the toy model, what plays the role of the current? What would I have to do to increase or decrease the current? In a circuit, voltage me ...
... Develop the idea that the Penguin Race toy is a model of an electric circuit. In a circuit, current measures the rate at which electrons are flowing around. In the toy model, what plays the role of the current? What would I have to do to increase or decrease the current? In a circuit, voltage me ...
Current transformer selection guide
... 1 - ELECTRICAL CHARACTERISTICS OF THE PRIMARY CIRCUITS SUIVANT NORME IEC The primary circuits of the current transformer must withstand the constraints related to the medium voltage network to which it is connected. ...
... 1 - ELECTRICAL CHARACTERISTICS OF THE PRIMARY CIRCUITS SUIVANT NORME IEC The primary circuits of the current transformer must withstand the constraints related to the medium voltage network to which it is connected. ...
specifications for centrifugal pump and fan applications
... NOTE: These specifications apply to Enclosed Adjustable Frequency Drive Controllers, herein referred to as AC Drives. The Power Converter is a component of the AC Drive. To ensure project compatibility, these specifications follow the Construction Specifications Institute (CSI) format. Copies of thi ...
... NOTE: These specifications apply to Enclosed Adjustable Frequency Drive Controllers, herein referred to as AC Drives. The Power Converter is a component of the AC Drive. To ensure project compatibility, these specifications follow the Construction Specifications Institute (CSI) format. Copies of thi ...
Single-Phase to Three-Phase Drive System Using Two Parallel Single-Phase Rectifiers
... Parallel converters have been used to improve the power capability, reliability, efficiency, and redundancy. Parallel converter techniques can be employed to improve the performance of active power filters [10]–[13], uninterruptible power supplies (UPS) [14]–[16], fault tolerance of doubly fed induc ...
... Parallel converters have been used to improve the power capability, reliability, efficiency, and redundancy. Parallel converter techniques can be employed to improve the performance of active power filters [10]–[13], uninterruptible power supplies (UPS) [14]–[16], fault tolerance of doubly fed induc ...
BR26452459
... been used to supply single-phase low-voltage loads. The typical loads may be the linear loads or nonlinear loads. Some of the loads may be computer loads, office automation machines, lighting ballasts, adjustable speeds drives (ASDs) in small air conditioners, fans, refrigerators, and other domestic ...
... been used to supply single-phase low-voltage loads. The typical loads may be the linear loads or nonlinear loads. Some of the loads may be computer loads, office automation machines, lighting ballasts, adjustable speeds drives (ASDs) in small air conditioners, fans, refrigerators, and other domestic ...
Industrial Controls Lecture
... only for motors. The overload protection device is required to protect the motor from destroying itself under an overloaded situation. ...
... only for motors. The overload protection device is required to protect the motor from destroying itself under an overloaded situation. ...
Inverters_and_DC-DC_Converters_01
... • The DC-DC converter does the same thing for a hybrid or BEV as an alternator does for a conventional vehicle – It provides electrical power at 14 volts DC for all of the lights and electrical accessories when the vehicle is being driven – Instead of being powered mechanically by a belt the DC-DC c ...
... • The DC-DC converter does the same thing for a hybrid or BEV as an alternator does for a conventional vehicle – It provides electrical power at 14 volts DC for all of the lights and electrical accessories when the vehicle is being driven – Instead of being powered mechanically by a belt the DC-DC c ...
International Electrical Engineering Journal (IEEJ) Vol. 7 (2016) No.3, pp. 2173-2181
... back-to back connected thyristors with BR in series which means that three BRs were utilized for torsional oscillations mitigation. In this paper, a new BR model, namely rectifier controlled braking resistor (RCBR) model [17, 18] is proposed for torsional oscillations mitigation .The use of only one ...
... back-to back connected thyristors with BR in series which means that three BRs were utilized for torsional oscillations mitigation. In this paper, a new BR model, namely rectifier controlled braking resistor (RCBR) model [17, 18] is proposed for torsional oscillations mitigation .The use of only one ...
POWER ANALYZER 3390
... generated can be used to measure the voltage and current phase (electrical angle) in real time based on the induced voltage when the motor is started. speed can be controlled by changing the speed of the rotating magnetic field (power supply frequency). In addition, high operating efficiency is one ...
... generated can be used to measure the voltage and current phase (electrical angle) in real time based on the induced voltage when the motor is started. speed can be controlled by changing the speed of the rotating magnetic field (power supply frequency). In addition, high operating efficiency is one ...
ELECTRICAL MACHINES LABORATORY "................................................................"
... DOCUMENTATION AND MANUALS ...
... DOCUMENTATION AND MANUALS ...
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 ...
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.