Electronics Mechanic
... Ability to understand and interpret the course content is essential to perform a job / task of Engineering Trades. It is the skills, Knowledge and Attitude which enables comprehending the given job and subsequent planning to complete the task/job. Thus it is imperative for any trade to instructor to ...
... Ability to understand and interpret the course content is essential to perform a job / task of Engineering Trades. It is the skills, Knowledge and Attitude which enables comprehending the given job and subsequent planning to complete the task/job. Thus it is imperative for any trade to instructor to ...
Winding insulation and maintenance
... ends of the stator housing after removing the end shields. This can be done in smaller motors, say, up to ‘355’ frame sizes. 2 By circulating roughly 50–60% of the rated current under a locked rotor condition, at a reduced voltage. To facilitate easy escape of the moisture to the atmosphere, the bea ...
... ends of the stator housing after removing the end shields. This can be done in smaller motors, say, up to ‘355’ frame sizes. 2 By circulating roughly 50–60% of the rated current under a locked rotor condition, at a reduced voltage. To facilitate easy escape of the moisture to the atmosphere, the bea ...
Manual Drivetrains and Axles Fourth Edition
... The AC synchronous motor rotates exactly at the supply frequency or a submultiple of the supply frequency. The speed is controlled by varying the frequency of the AC supply and the number of poles in the stator winding, according to the relation: RPM = 120F ÷ p where RPM = Synchronous speed F = AC p ...
... The AC synchronous motor rotates exactly at the supply frequency or a submultiple of the supply frequency. The speed is controlled by varying the frequency of the AC supply and the number of poles in the stator winding, according to the relation: RPM = 120F ÷ p where RPM = Synchronous speed F = AC p ...
SERVOSTAR S- and CD-Series Position Control
... HOMETYPE 0, 1, 2: Once a Home point is established, PFB is automatically normalized (set equal to zero). Any subsequent “Command to Home” is executed as an absolute position command that traverses at the speed value stored in MISPEED0 until PFB is equal to zero. If the mechanical home location (or s ...
... HOMETYPE 0, 1, 2: Once a Home point is established, PFB is automatically normalized (set equal to zero). Any subsequent “Command to Home” is executed as an absolute position command that traverses at the speed value stored in MISPEED0 until PFB is equal to zero. If the mechanical home location (or s ...
Wind Turbine Manual
... tower or contact with the rotating blades can be lethal. WARNING! High voltage systems (systems with a DC to AC inverter) can represent a dangerous shock hazard and could be lethal. All high voltage systems must be wired and maintained by a qualified and licensed electrician. WARNING! Batteries can ...
... tower or contact with the rotating blades can be lethal. WARNING! High voltage systems (systems with a DC to AC inverter) can represent a dangerous shock hazard and could be lethal. All high voltage systems must be wired and maintained by a qualified and licensed electrician. WARNING! Batteries can ...
Sensor-less Three-phase Brushless DC Motor Controller
... The LV8907 is a high performance, AEC-Q100 qualified, sensor-less three-phase BLDC motor controller with integrated gate drivers for driving external N-MOSFETs. An on-chip two-stage charge pump provides required gate voltage for a wide range of low RDS(ON) type external N-MOSFETs. The device offers ...
... The LV8907 is a high performance, AEC-Q100 qualified, sensor-less three-phase BLDC motor controller with integrated gate drivers for driving external N-MOSFETs. An on-chip two-stage charge pump provides required gate voltage for a wide range of low RDS(ON) type external N-MOSFETs. The device offers ...
The USB Microcontroller Boards that will be taken into
... The obstacle avoidance system of ParkBot will be using either infrared waves or ultrasonic waves to project a beam of light or a pulse of sound out of the ultrasonic or infrared sensors. If the light or the pulse of sound is reflected back then the system can identify if there is an object in the pa ...
... The obstacle avoidance system of ParkBot will be using either infrared waves or ultrasonic waves to project a beam of light or a pulse of sound out of the ultrasonic or infrared sensors. If the light or the pulse of sound is reflected back then the system can identify if there is an object in the pa ...
Scope and Sequence - Construction Electricity
... Recognize what atoms are and how they are constructed. Define voltage and identify the ways in which it can be produced. Explain the difference between conductors and insulators. Define the units of measurement that are used to measure the properties of electricity. Explain how voltage, current, and ...
... Recognize what atoms are and how they are constructed. Define voltage and identify the ways in which it can be produced. Explain the difference between conductors and insulators. Define the units of measurement that are used to measure the properties of electricity. Explain how voltage, current, and ...
Aalborg Universitet during Grid Fault
... Modelling has an important role in the research and development of system changes because it allows many difficult questions to be answered. The varieties of challenges that must be addressed in such modelling are not met by any single modelling software program. In addition a huge range of in-house ...
... Modelling has an important role in the research and development of system changes because it allows many difficult questions to be answered. The varieties of challenges that must be addressed in such modelling are not met by any single modelling software program. In addition a huge range of in-house ...
Protective Relay Application Guide
... This type of protection operates on the principle of current comparison in the same phase but at the two extremities of the protected equipment, (cable: SOLKOR-RF, transformer: DMS7002, DTT7031, rotating machines: DMS 7001, DTM 7033, IAG 7034 or bus bars: IAG 7034) and has two main advantages: − It ...
... This type of protection operates on the principle of current comparison in the same phase but at the two extremities of the protected equipment, (cable: SOLKOR-RF, transformer: DMS7002, DTT7031, rotating machines: DMS 7001, DTM 7033, IAG 7034 or bus bars: IAG 7034) and has two main advantages: − It ...
“FAULT TOLERANT VECTOR CONTROL OF FIVE-PHASE PERMANENT MAGNET MOTORS”
... structure or by enhancing their controlling methods. New current controllers are proposed in this thesis to improve the quality of generated torque under normal operations of five-phase BLDC machines. Proposed current controllers are based on combination of predictive deadbeat controlling strategy a ...
... structure or by enhancing their controlling methods. New current controllers are proposed in this thesis to improve the quality of generated torque under normal operations of five-phase BLDC machines. Proposed current controllers are based on combination of predictive deadbeat controlling strategy a ...
9.6V, 1600mAh Ni-MH Battery Pack and Charger
... The obstacle avoidance system of ParkBot will be using either infrared waves or ultrasonic waves to project a beam of light or a pulse of sound out of the ultrasonic or infrared sensors. If the light or the pulse of sound is reflected back then the system can identify if there is an object in the pa ...
... The obstacle avoidance system of ParkBot will be using either infrared waves or ultrasonic waves to project a beam of light or a pulse of sound out of the ultrasonic or infrared sensors. If the light or the pulse of sound is reflected back then the system can identify if there is an object in the pa ...
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.