lecture1424353332
... The rotor or rotating part is not connected electrically to the power supply but has voltage induced in it by transformer action from the stator. For this reason, the stator is sometimes called the primary and the rotor is referred to as the secondary of the motor since the motor operates on the pri ...
... The rotor or rotating part is not connected electrically to the power supply but has voltage induced in it by transformer action from the stator. For this reason, the stator is sometimes called the primary and the rotor is referred to as the secondary of the motor since the motor operates on the pri ...
Generator TheoryPDF
... lines of magnetic flux which is obtained by: Ampere‐turns • Ampere‐turns is the product of the number of turns in the rotor winding and the current that flows in the winding ...
... lines of magnetic flux which is obtained by: Ampere‐turns • Ampere‐turns is the product of the number of turns in the rotor winding and the current that flows in the winding ...
Design of DC-DC Converters using Tunable Piezoelectric
... design with Cseq/Cp1 ratio equal to 0.155. This was obtained using SIMPLIS. .............................................39 Fig. 3.16. Shift in resonant frequency from nominal load to 10% load condition for the given tunable PT design with Cseq/Cp1 ratio equal to 0.0797. This was obtained using SIMP ...
... design with Cseq/Cp1 ratio equal to 0.155. This was obtained using SIMPLIS. .............................................39 Fig. 3.16. Shift in resonant frequency from nominal load to 10% load condition for the given tunable PT design with Cseq/Cp1 ratio equal to 0.0797. This was obtained using SIMP ...
MAX5039, MAX5040
... 5.5V. The MAX5039/MAX5040 work with CORE voltages ranging from 800mV to about 3V (depending on the gate-to-source turn-on threshold of the external Nchannel MOSFET) and I/O voltages ranging from VCORE to 4V. The MAX5039/MAX5040 provide tracking control of the I/O and CORE voltages using a single ext ...
... 5.5V. The MAX5039/MAX5040 work with CORE voltages ranging from 800mV to about 3V (depending on the gate-to-source turn-on threshold of the external Nchannel MOSFET) and I/O voltages ranging from VCORE to 4V. The MAX5039/MAX5040 provide tracking control of the I/O and CORE voltages using a single ext ...
Application Information
... and a multifunctional monolithic integrated circuit (MIC) controller designed for controlling switch mode power supplies. The quasi-resonant mode of operation, coupled with the bottom-skip function, allows high efficiency and low noise at low to high operational levels, while burst oscillation mode ...
... and a multifunctional monolithic integrated circuit (MIC) controller designed for controlling switch mode power supplies. The quasi-resonant mode of operation, coupled with the bottom-skip function, allows high efficiency and low noise at low to high operational levels, while burst oscillation mode ...
COOPER POWER SERIES Sectionalizing switch installation instructions OEM Equipment
... pad-mounted transformers or distribution switchgear. The switches meet the full requirements of the latest revision of both IEEE® and IEC standards. Sectionalizing switches can be used on single- and threephase grounded wye or delta systems. They are used in underground residential applications with ...
... pad-mounted transformers or distribution switchgear. The switches meet the full requirements of the latest revision of both IEEE® and IEC standards. Sectionalizing switches can be used on single- and threephase grounded wye or delta systems. They are used in underground residential applications with ...
electrical machines ii - SK Engineering Academy
... Waveform of the emf can be approximately made to a sine wave and distorting harmonics can be reduced or totally eliminated. Conductor material , copper is saved in the back and front end connections due to less coil-span. Fractional slot winding with fractional number of slots/phase can be use ...
... Waveform of the emf can be approximately made to a sine wave and distorting harmonics can be reduced or totally eliminated. Conductor material , copper is saved in the back and front end connections due to less coil-span. Fractional slot winding with fractional number of slots/phase can be use ...
Induction Motors
... of their simple and robust construction, low cost, minimal maintenance, and inherent overload protection. However, induction generators are much less widely used because the drive speed, electrical frequency, voltage, load, and equivalent terminal capacitance must be juggled to provide both the re ...
... of their simple and robust construction, low cost, minimal maintenance, and inherent overload protection. However, induction generators are much less widely used because the drive speed, electrical frequency, voltage, load, and equivalent terminal capacitance must be juggled to provide both the re ...
Interconnection Requirements for Transmission Facilities 138 kV
... Furthermore, project documentation shall include, but not be limited to: 1. All design calculations. 2. Licensing and permitting documentation. 3. Bill of materials for major equipment, structures, and electrical buswork. 4. Manufacturers drawings, instruction books, and test reports. 5. DC and AC ...
... Furthermore, project documentation shall include, but not be limited to: 1. All design calculations. 2. Licensing and permitting documentation. 3. Bill of materials for major equipment, structures, and electrical buswork. 4. Manufacturers drawings, instruction books, and test reports. 5. DC and AC ...
200 W Game Console AC-DC Adapter
... are shown in Table 1 to Table 4. It should be noted that the Energy Star specifications are designed with the US market in mind. However, through its extensive partnership programs, several other countries and regions are implementing the Energy Star guidelines with very little changes. ...
... are shown in Table 1 to Table 4. It should be noted that the Energy Star specifications are designed with the US market in mind. However, through its extensive partnership programs, several other countries and regions are implementing the Energy Star guidelines with very little changes. ...
dc machines
... (see Figure 4.21, p. 142). At low values of magnetic flux density, the reluctances of the ferromagnetic components in the magnetic circuit are negligible in comparison to the reluctances of the air gaps. However, at higher values of magnetic flux density, the certain components of the magnetic circu ...
... (see Figure 4.21, p. 142). At low values of magnetic flux density, the reluctances of the ferromagnetic components in the magnetic circuit are negligible in comparison to the reluctances of the air gaps. However, at higher values of magnetic flux density, the certain components of the magnetic circu ...
lecture1424353251
... •Induction Motors: Most widely used electrical motors in both domestic and industrial applications. •Induction Generators: This generator runs at asynchronous speed and variable frequency voltage generated. Due to lack of a separate field excitation, these machines are rarely used as generators. 1.2 ...
... •Induction Motors: Most widely used electrical motors in both domestic and industrial applications. •Induction Generators: This generator runs at asynchronous speed and variable frequency voltage generated. Due to lack of a separate field excitation, these machines are rarely used as generators. 1.2 ...
attachment=3734
... 15. Why are Alternators rated in kVA and not in kW? The continuous power rating of any machine is generally defined as the power the machine or apparatus can deliver for a continuous period so that the losses incurred in the machine gives rise to a steady temperature rise not exceeding the limit pre ...
... 15. Why are Alternators rated in kVA and not in kW? The continuous power rating of any machine is generally defined as the power the machine or apparatus can deliver for a continuous period so that the losses incurred in the machine gives rise to a steady temperature rise not exceeding the limit pre ...
Transformer
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.Since the invention of the first constant potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electrical energy. A wide range of transformer designs are encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.