Equations of the electromagnetic field in dispersive media
... electrodynamic theory and is still not fully understood. Terms like “non-classical geoelectromagnetics/geo-electrics” have been also introduced to emphasize that the mentioned above polarization phenomena cannot be described by Maxwell’s equations (Svetov, 1995). As for IP effects in the low frequen ...
... electrodynamic theory and is still not fully understood. Terms like “non-classical geoelectromagnetics/geo-electrics” have been also introduced to emphasize that the mentioned above polarization phenomena cannot be described by Maxwell’s equations (Svetov, 1995). As for IP effects in the low frequen ...
this PDF file
... to the magnetic field. Second, they are repulsed by the magnetic field. And third, no noticeable reaction to the magnetic field [2] occurs. Particles that are attracted to the magnetic field are called magnetic. But, there are two classifications of magnetic particles, strongly magnetic particles, s ...
... to the magnetic field. Second, they are repulsed by the magnetic field. And third, no noticeable reaction to the magnetic field [2] occurs. Particles that are attracted to the magnetic field are called magnetic. But, there are two classifications of magnetic particles, strongly magnetic particles, s ...
Transformer - KFUPM Faculty List
... Three phase transformers are used throughout industry to change values of threephase voltage and current. Since three-phase power is the most common way in which power is produced, transmitted, and used, an understanding of how three phase transformer connections are made is essential. In this secti ...
... Three phase transformers are used throughout industry to change values of threephase voltage and current. Since three-phase power is the most common way in which power is produced, transmitted, and used, an understanding of how three phase transformer connections are made is essential. In this secti ...
Evaluation of children presenting to the - Tubitak Journals
... outlets. Sex distribution is equal in this age group. Older children and adolescents sustain out-of-home electric shock by contact with high-voltage transmission lines or industrial electrical currents at the work place, and males predominate in this age group (9–11). Consistent with the literature, ...
... outlets. Sex distribution is equal in this age group. Older children and adolescents sustain out-of-home electric shock by contact with high-voltage transmission lines or industrial electrical currents at the work place, and males predominate in this age group (9–11). Consistent with the literature, ...
Chapter 9 – DC Motors and Generators
... Poles are made of permanent magnets instead of field coils. Advantages: - No copper losses of field circuit - Smaller motor due to elimination of field winding Common in smaller fractional and subfractional-horsepower sizes. Disadvantages: - Permanent-magnet cannot produce as high a flux density as ...
... Poles are made of permanent magnets instead of field coils. Advantages: - No copper losses of field circuit - Smaller motor due to elimination of field winding Common in smaller fractional and subfractional-horsepower sizes. Disadvantages: - Permanent-magnet cannot produce as high a flux density as ...
Motors and Generators
... generator that receive a voltage from a source (excitation) and produce a magnetic flux. The magnetic flux in the field cuts the windings in the armature to produce a voltage. This voltage is the output voltage of the AC generator. Armature The armature is the voltage production source of an AC gene ...
... generator that receive a voltage from a source (excitation) and produce a magnetic flux. The magnetic flux in the field cuts the windings in the armature to produce a voltage. This voltage is the output voltage of the AC generator. Armature The armature is the voltage production source of an AC gene ...
Half stepping techniques
... Some microcontrollers have D/A converters on-chip which makes it possible to use the controller to generate and control the VR input along with the other inputs. This gives the ability to achieve a half-step sequence with highly accurate torque. Full step TTL-generator A full-step TTL generator is e ...
... Some microcontrollers have D/A converters on-chip which makes it possible to use the controller to generate and control the VR input along with the other inputs. This gives the ability to achieve a half-step sequence with highly accurate torque. Full step TTL-generator A full-step TTL generator is e ...
Motors and Generators - Instructor Guide
... Types of Generators ELO 1.4 – Describe the following types of AC generators: stationary field/rotating armature; rotating field/stationary armature. Stationary Field / Rotating Armature • Small AC generators usually have stationary field and rotating armature • Disadvantage is that slip-ring and bru ...
... Types of Generators ELO 1.4 – Describe the following types of AC generators: stationary field/rotating armature; rotating field/stationary armature. Stationary Field / Rotating Armature • Small AC generators usually have stationary field and rotating armature • Disadvantage is that slip-ring and bru ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.10, pp. 1567-1575
... Improvement in Brushless DC Motor Drives Arunkumar and Thangavel [email protected] Abstract— In recent years brushless DC motors (BLDC) are the research hotspot in speed precision and household applications due to its high reliability, simple frame, high efficiency, fast dynamic response, compact ...
... Improvement in Brushless DC Motor Drives Arunkumar and Thangavel [email protected] Abstract— In recent years brushless DC motors (BLDC) are the research hotspot in speed precision and household applications due to its high reliability, simple frame, high efficiency, fast dynamic response, compact ...
A Framework for Reliability and Performance Assessment of Wind
... The fourth group of inputs is comprised of performance requirements that, for different operational scenarios, must be fulfilled by the WECS in the presence of internal and grid faults. These requirements consist of maximum and minimum values that certain WECS performance variables can take. As it w ...
... The fourth group of inputs is comprised of performance requirements that, for different operational scenarios, must be fulfilled by the WECS in the presence of internal and grid faults. These requirements consist of maximum and minimum values that certain WECS performance variables can take. As it w ...
MEG 373 Kinematics and Dynamics of Machines
... which yields a gear reduction between B and A of B A 25 , given NB = 20, NC = 80, and ND = 30. (b) Determine the numerical value of the mechanical advantage of this gear train ...
... which yields a gear reduction between B and A of B A 25 , given NB = 20, NC = 80, and ND = 30. (b) Determine the numerical value of the mechanical advantage of this gear train ...
electrical machines elec
... losses, and smaller exciting current and cost less than twowinding transformers when the voltage ratio does not differ too greatly from 1:1. ...
... losses, and smaller exciting current and cost less than twowinding transformers when the voltage ratio does not differ too greatly from 1:1. ...
Restructuring of First Courses in Power Electronics and
... implemented using analog components, and a step response similar to the simulated response (Fig. 9) is obtained using the power electronics circuit board. The same controller is implemented as transfer function blocks in Simulink [Fig. 10(a)] and downloaded to a DSP using a rapid prototyping system. ...
... implemented using analog components, and a step response similar to the simulated response (Fig. 9) is obtained using the power electronics circuit board. The same controller is implemented as transfer function blocks in Simulink [Fig. 10(a)] and downloaded to a DSP using a rapid prototyping system. ...
