DP31778783
... because the speed-torque relationship can be varied to almost any useful form for both dc motor and regeneration applications in either direction of rotation. DC motors feature a speed, which can be controlled smoothly down to zero, immediately followed by acceleration in the opposite direction with ...
... because the speed-torque relationship can be varied to almost any useful form for both dc motor and regeneration applications in either direction of rotation. DC motors feature a speed, which can be controlled smoothly down to zero, immediately followed by acceleration in the opposite direction with ...
Tracing Network flows due to Sources/Sinks using Virtual flow Concept
... [7] proposed loss allocation by using load flow information. Here system losses are attributed to buses which takes care of relative position of generation and loads in the network along with the capacity but contribution to loads from a given source is still a problem. Further if line shunts are no ...
... [7] proposed loss allocation by using load flow information. Here system losses are attributed to buses which takes care of relative position of generation and loads in the network along with the capacity but contribution to loads from a given source is still a problem. Further if line shunts are no ...
Analysis of the Synchronous Machine in its Operational Modes
... VARs together with watts, they are almost always operated in the over-excited condition [1], [3], [11], [12]. Synchronous generators are used to generate electricity in hydro power plant and thermal power plants with gas or steam turbine [19]. High-speed synchronous generators with special cooling t ...
... VARs together with watts, they are almost always operated in the over-excited condition [1], [3], [11], [12]. Synchronous generators are used to generate electricity in hydro power plant and thermal power plants with gas or steam turbine [19]. High-speed synchronous generators with special cooling t ...
Multiple-Output, Variable-Output DC Power Supply
... components, such as the LM317T adjustable output, positive voltage regulator, will be purchased separately. The basic technical problem faced in this project is determining how to implement a circuit within the design parameters that will fulfill our objectives. Each non-structural design requiremen ...
... components, such as the LM317T adjustable output, positive voltage regulator, will be purchased separately. The basic technical problem faced in this project is determining how to implement a circuit within the design parameters that will fulfill our objectives. Each non-structural design requiremen ...
Ch21EMF - Mother Seton
... the opposite direction to the original field if the flux is increasing; in the same direction if it is decreasing; and is zero if the flux is not changing. 3. Use the right-hand rule to determine the direction of the current. 4. Remember that the external field and the field due to the induced curre ...
... the opposite direction to the original field if the flux is increasing; in the same direction if it is decreasing; and is zero if the flux is not changing. 3. Use the right-hand rule to determine the direction of the current. 4. Remember that the external field and the field due to the induced curre ...
TS321_B15
... more than –0.3 VDC (at 25 C). An input clamp diode with a resistor to the IC input terminal can be used. To reduce the power supply drain, the amplifier has a class A output stage for small signal levels which converts to class B in a large signal mode. This allows the amplifiers to both source and ...
... more than –0.3 VDC (at 25 C). An input clamp diode with a resistor to the IC input terminal can be used. To reduce the power supply drain, the amplifier has a class A output stage for small signal levels which converts to class B in a large signal mode. This allows the amplifiers to both source and ...
Electrical - C:\4M\CALC\TESTELE
... The temporary supply will be done according to regulations by the proprietor and with the responsibility of the managing engineer. It is anticipated that the temporary supply is located in a sealed metallic box, which is grounded and locked during the non-working hours with the responsibility of the ...
... The temporary supply will be done according to regulations by the proprietor and with the responsibility of the managing engineer. It is anticipated that the temporary supply is located in a sealed metallic box, which is grounded and locked during the non-working hours with the responsibility of the ...
Energy Efficient Wide Bandgap Devices
... unique attributes. As the markets for these devices emerge, it is important to understand what drives the commercial market to use WBG devices versus other more established materials such as silicon or gallium arsenide. For RF amplifiers, obtaining good efficiency while meeting the required linearit ...
... unique attributes. As the markets for these devices emerge, it is important to understand what drives the commercial market to use WBG devices versus other more established materials such as silicon or gallium arsenide. For RF amplifiers, obtaining good efficiency while meeting the required linearit ...
Development of High Power CW and Pulsed RF Test Facility based
... test facility, which is thoroughly tested for its performance parameters at rated operating conditions. Auxiliary power supplies like filament, electromagnet, ion pump and mod anode power supply as well as 200 W solid state driver amplifier necessary for this high power test facility have been devel ...
... test facility, which is thoroughly tested for its performance parameters at rated operating conditions. Auxiliary power supplies like filament, electromagnet, ion pump and mod anode power supply as well as 200 W solid state driver amplifier necessary for this high power test facility have been devel ...
PFC-180 Series FEATURES Compact 1/4 Brick Package 2.30 x 1.45
... The Unive rt e r PFC-180 P owe r Facto r Correction modules are extremely miniature and lightweight AC to DC converters that operate from wide range AC input voltages and frequencies with extremely high conversion efficiency and near unity power factor. These units produce an output of 375VDC. The w ...
... The Unive rt e r PFC-180 P owe r Facto r Correction modules are extremely miniature and lightweight AC to DC converters that operate from wide range AC input voltages and frequencies with extremely high conversion efficiency and near unity power factor. These units produce an output of 375VDC. The w ...
Performance II
... i.e. convert rate to time/task, average, convert back to rate. Also can be weighted like arithmetic mean. ...
... i.e. convert rate to time/task, average, convert back to rate. Also can be weighted like arithmetic mean. ...
asymmetrical multilevel inverter for higher output
... Now a days the growth of interest in multilevel inverters has been increasing because there are enormous applications of there in FACTS and industrial drives etc., Although there are many topologies of multilevel inverters in literature, popular among them are cascaded H-bridge. In general the contr ...
... Now a days the growth of interest in multilevel inverters has been increasing because there are enormous applications of there in FACTS and industrial drives etc., Although there are many topologies of multilevel inverters in literature, popular among them are cascaded H-bridge. In general the contr ...
Acumentrics Rugged-UPS™ Design Details
... (85-265 VAC, 47-440 Hz) The voltage and frequency of power from generators and grids vary widely around the world. You could carry a box full of adapters to meet them all. Or you could use a conditioner that is compatible with any power source in the world – including DC. Acumentrics’ UPS products a ...
... (85-265 VAC, 47-440 Hz) The voltage and frequency of power from generators and grids vary widely around the world. You could carry a box full of adapters to meet them all. Or you could use a conditioner that is compatible with any power source in the world – including DC. Acumentrics’ UPS products a ...
interline unified power quality conditioner: design and
... flexible option than the fundamental frequency switching (FFS) methods favored in FACTS applications. Besides, high switching frequencies can be used to improve the efficiency of the converter, without incurring significant switching losses. The shunt bidirectional converter that is connected throug ...
... flexible option than the fundamental frequency switching (FFS) methods favored in FACTS applications. Besides, high switching frequencies can be used to improve the efficiency of the converter, without incurring significant switching losses. The shunt bidirectional converter that is connected throug ...
Detecting electrical unbalance and overloads
... Thermal images are an easy way to identify apparent temperature differences in industrial three-phase electrical circuits, compared to their normal operating conditions. By inspecting the thermal gradients ...
... Thermal images are an easy way to identify apparent temperature differences in industrial three-phase electrical circuits, compared to their normal operating conditions. By inspecting the thermal gradients ...
Energy harvesting – small scale energy production
... production, but despite this, significant technical progress has been made recently. In particular, the use of nanostructured materials has allowed figures of merit to be increased by at least a factor of two [9]. Never-the-less, a particular difficulty for small scale harvesting is that thermo-elec ...
... production, but despite this, significant technical progress has been made recently. In particular, the use of nanostructured materials has allowed figures of merit to be increased by at least a factor of two [9]. Never-the-less, a particular difficulty for small scale harvesting is that thermo-elec ...
Electrification
Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.