Document
... A 60-Hz generator rotates in a 0.15 T magnetic field. If the area of the coil is 0.020 m2, how many loops must it contain for a peak output of 170 V? E = NBAwsin wt assume wt = 90 E = NBAw = E /Baw w = 2pf = 2p(60Hz) = 377 s-1 ...
... A 60-Hz generator rotates in a 0.15 T magnetic field. If the area of the coil is 0.020 m2, how many loops must it contain for a peak output of 170 V? E = NBAwsin wt assume wt = 90 E = NBAw = E /Baw w = 2pf = 2p(60Hz) = 377 s-1 ...
BD0040
... ammeter and milliammeter by connecting a suitable low resistance across its terminals, this is known as shunt resistance. A galvanometer can be converted into a voltmeter by connecting a high resistance in series with it. Voltmeters and ammeters are incorporated in an X-ray machine, to measure elect ...
... ammeter and milliammeter by connecting a suitable low resistance across its terminals, this is known as shunt resistance. A galvanometer can be converted into a voltmeter by connecting a high resistance in series with it. Voltmeters and ammeters are incorporated in an X-ray machine, to measure elect ...
Electrical Training Catalog
... Fundamentals Electrical Science Course Work was developed to assist instructors, engineers, electricians, apprenticeship, HVAC technicians, electronic technicians, contractors, facility operations, operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ...
... Fundamentals Electrical Science Course Work was developed to assist instructors, engineers, electricians, apprenticeship, HVAC technicians, electronic technicians, contractors, facility operations, operators, maintenance personnel, and the technical staff with the necessary fundamentals training to ...
ABB drives - Technical guide No. 7
... Chapter 4 - Induction (AC) motor.............................................................11 4.1 Fundamentals .............................................................................11 4.2 Motor current .............................................................................13 ...
... Chapter 4 - Induction (AC) motor.............................................................11 4.1 Fundamentals .............................................................................11 4.2 Motor current .............................................................................13 ...
ABB micro drives - ACS55, 0.25 to 3 hp/0.18 to 2.2 kW, Catalog
... ACS55 micro drives are designed for use in a wide variety of simple machinery applications where only 115 V single phase power is available. Feed-thru wiring with power leads entering at the top and motor cables exiting at the bottom allows for easy replacement of contactors and motor starters. Thes ...
... ACS55 micro drives are designed for use in a wide variety of simple machinery applications where only 115 V single phase power is available. Feed-thru wiring with power leads entering at the top and motor cables exiting at the bottom allows for easy replacement of contactors and motor starters. Thes ...
2012 Elec-Mag-Steel Product Systematic Iron Loss FM CN63
... Fig. 1, adequate primary winding magnetization current is applied to the testing assembly. The iron core is composed of eight (generally, a multiple of four) identical isotropic/anisotropic electromagnetic steel strips, and the power consumptions associated with specific voltage and current settings ...
... Fig. 1, adequate primary winding magnetization current is applied to the testing assembly. The iron core is composed of eight (generally, a multiple of four) identical isotropic/anisotropic electromagnetic steel strips, and the power consumptions associated with specific voltage and current settings ...
Basic Vocational Knowledge - Electrical Machines
... 7. Single−phase alternating current motors..........................................................................................91 7.1. Single−phase asynchronous motors (single−phase induction motors)...................................91 7.2. Three−phase asynchronous motor in single−phase operat ...
... 7. Single−phase alternating current motors..........................................................................................91 7.1. Single−phase asynchronous motors (single−phase induction motors)...................................91 7.2. Three−phase asynchronous motor in single−phase operat ...
Key Factors in the Sizing of Generator Sets
... Non reactive - Non-reactive loads are purely resistive and include devices such as heater coils, filament lights, etc. Reactive - Reactive loads are devices that use an electrical coil with a magnetic field such as electric motors, solenoids, transformers etc. Reactive loads can also be those includ ...
... Non reactive - Non-reactive loads are purely resistive and include devices such as heater coils, filament lights, etc. Reactive - Reactive loads are devices that use an electrical coil with a magnetic field such as electric motors, solenoids, transformers etc. Reactive loads can also be those includ ...
International Journal of Computer Science and Intelligent
... These static capacitors provide leading current which neutralize (totally or approximately) the lagging inductive component of load current (i.e. leading component neutralize or eliminate the lagging component of load current) thus power factor of the load circuit is improved [8]. These capacitors a ...
... These static capacitors provide leading current which neutralize (totally or approximately) the lagging inductive component of load current (i.e. leading component neutralize or eliminate the lagging component of load current) thus power factor of the load circuit is improved [8]. These capacitors a ...
ELECTROMAGNETIC FORCES ACTING BETWEEN THE STATOR
... Progressive improvement in the power and speed of computers has resulted in a situation in which time-stepping finite element analysis of electrical machines is used as both a research and industrial tool. For most types of electrical machines the modelling is two-dimensional. Their potentially more ...
... Progressive improvement in the power and speed of computers has resulted in a situation in which time-stepping finite element analysis of electrical machines is used as both a research and industrial tool. For most types of electrical machines the modelling is two-dimensional. Their potentially more ...
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.