Viesturs Bražis. Asynchronous electric drive with frontal part winding
... researched by L. Petrov [10], V. Shubenko [13], I. Braslavskiy [13], J. Greivulis [6], L. Ribickis [6], I. Rankis and A. Zhiraveckaya. Although the stator voltage control at starting lets to control the transient process parameters, this method is not suitable for heavy loaded motor start-up [13] an ...
... researched by L. Petrov [10], V. Shubenko [13], I. Braslavskiy [13], J. Greivulis [6], L. Ribickis [6], I. Rankis and A. Zhiraveckaya. Although the stator voltage control at starting lets to control the transient process parameters, this method is not suitable for heavy loaded motor start-up [13] an ...
III. Voltage Regulation
... Voltage regulation is frequently the most limiting issue with respect to how much DER capacity can be accommodated without changes to the utility system. Depending upon how the DER is configured to operate, it can have varying impacts on system voltage regulation. There are essentially two modes of ...
... Voltage regulation is frequently the most limiting issue with respect to how much DER capacity can be accommodated without changes to the utility system. Depending upon how the DER is configured to operate, it can have varying impacts on system voltage regulation. There are essentially two modes of ...
FWE-Exec Template
... Digital Still Cameras, PDAs, MP3 Players, PNDs, etc. Industrial Control and Instrumentation Automotive – Navigation and Infotainment Telecommunications – Infrastructure Computer – Servers, Workstations and Notebook PC © 2006 Linear Technology ...
... Digital Still Cameras, PDAs, MP3 Players, PNDs, etc. Industrial Control and Instrumentation Automotive – Navigation and Infotainment Telecommunications – Infrastructure Computer – Servers, Workstations and Notebook PC © 2006 Linear Technology ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... In this method three modulating signals ( mR for R-phase, mY for Y-phase, mB for B-phase) with 120 degree phase shift when compared with high frequency carrier triangular signal it generates switching pulse[7][5]. The shoot-through for Z-source inverter is generated by comparing two straight dc line ...
... In this method three modulating signals ( mR for R-phase, mY for Y-phase, mB for B-phase) with 120 degree phase shift when compared with high frequency carrier triangular signal it generates switching pulse[7][5]. The shoot-through for Z-source inverter is generated by comparing two straight dc line ...
STW3040
... STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com ...
... STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com ...
50 KW DGCA - West Generator Services
... Separately Excited Permanent Magnet Generator (PMG) System - This option uses an integral PMG to supply power to the voltage regulator. A PMG system generally has better motor-starting performance, lower voltage dip upon load application, and better immunity from problems with harmonics in the main ...
... Separately Excited Permanent Magnet Generator (PMG) System - This option uses an integral PMG to supply power to the voltage regulator. A PMG system generally has better motor-starting performance, lower voltage dip upon load application, and better immunity from problems with harmonics in the main ...
here - Spellman High Voltage
... Resistor R2 is selected as required to achieve the desired load condition. The "low end" of the load is returned to the current monitor, I. The "high end" of the R2 resistor is connected by an appropriate lead to an insulated stick or rod ("Lexan” or other acrylic material is recommended). A three f ...
... Resistor R2 is selected as required to achieve the desired load condition. The "low end" of the load is returned to the current monitor, I. The "high end" of the R2 resistor is connected by an appropriate lead to an insulated stick or rod ("Lexan” or other acrylic material is recommended). A three f ...
Motors - MD Anderson Cancer Center
... 2. All motor bearings shall be factory prepacked with a nondetergent lubricant and shall be provided with lubrication fitting arranged to provide easy access when installed on the driven apparatus except as noted hereinafter. 3. Permanently lubricated factory-sealed motors may be provided in fractio ...
... 2. All motor bearings shall be factory prepacked with a nondetergent lubricant and shall be provided with lubrication fitting arranged to provide easy access when installed on the driven apparatus except as noted hereinafter. 3. Permanently lubricated factory-sealed motors may be provided in fractio ...
POWER CONTROL IN AC CIRCUITS USING AN AC CHOPPER
... some examples for AC-AC converters. There are many different types of AC converters but basically, they produce an output voltage at the same frequency as input AC signal with variable amplitudes. These converters are also known as AC choppers. There are many different methods AC choppers use in pro ...
... some examples for AC-AC converters. There are many different types of AC converters but basically, they produce an output voltage at the same frequency as input AC signal with variable amplitudes. These converters are also known as AC choppers. There are many different methods AC choppers use in pro ...
IXI848 - IXYS Power
... error component associated with the input offset voltage of the internal op amp. ...
... error component associated with the input offset voltage of the internal op amp. ...
ET161 - Mohawk Valley Community College
... 2. Small Signal Amplifiers A. CE Amplifiers 1. Capacitors, AC models and Superposition ...
... 2. Small Signal Amplifiers A. CE Amplifiers 1. Capacitors, AC models and Superposition ...
InductorsACCrkts - University of Colorado Boulder
... transmitted from the power plant to the city by big aluminum cables (power lines). Some energy is inevitably wasted because the power lines have a resistance, and so they get hot: Plost = I2 Rcable. In order to minimize this waste, the power must be transmitted from the plant to the city at very hig ...
... transmitted from the power plant to the city by big aluminum cables (power lines). Some energy is inevitably wasted because the power lines have a resistance, and so they get hot: Plost = I2 Rcable. In order to minimize this waste, the power must be transmitted from the plant to the city at very hig ...
Document
... If it is desired that a converter operate in CCM at all times, it must be recognized that DCM occurs for low values of inductor currents. For regulated output applications, this condition is associated with large resistance (low current) loading, and/or high input voltages. Inductor values should be ...
... If it is desired that a converter operate in CCM at all times, it must be recognized that DCM occurs for low values of inductor currents. For regulated output applications, this condition is associated with large resistance (low current) loading, and/or high input voltages. Inductor values should be ...
Rectifier Bridges and Dual Rectifiers
... the desired rms source voltage is achieved with a transformer. In many examples, this is often a stepdown transformer to ...
... the desired rms source voltage is achieved with a transformer. In many examples, this is often a stepdown transformer to ...
RFVC1800 数据资料DataSheet下载
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
... Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Abs ...
BUL416T
... The BUL416T is an high voltage fast-switching NPN power transistor manufactured in planar technology with diffused collector. This device is designed for lighting and SMPS applications where high voltage capability is needed coupled with high switching speed. ...
... The BUL416T is an high voltage fast-switching NPN power transistor manufactured in planar technology with diffused collector. This device is designed for lighting and SMPS applications where high voltage capability is needed coupled with high switching speed. ...
Model 430 Bridgesensor
... from 0 to +12 mA. This range allows the Model 430 to provide output spans of 0 to 20 mA, 4 to 20 mA, or 12 ±8 mA bipolar. The output has a compliance of 0 to +10 Volts which will allow several in line process control detectors adding up to a total of 500 ohms loop resistance. The current output line ...
... from 0 to +12 mA. This range allows the Model 430 to provide output spans of 0 to 20 mA, 4 to 20 mA, or 12 ±8 mA bipolar. The output has a compliance of 0 to +10 Volts which will allow several in line process control detectors adding up to a total of 500 ohms loop resistance. The current output line ...
A Novel Control Method for Unified Power Quality Conditioner
... generation block diagram is shown in Fig. 3. The instantaneous reactive power (p-q) theory is used to control of shunt APF in real time. In this theory, the instantaneous three-phase currents and voltages are transformed to α-β-0 coordinates as shown in equation (4) and (5). ...
... generation block diagram is shown in Fig. 3. The instantaneous reactive power (p-q) theory is used to control of shunt APF in real time. In this theory, the instantaneous three-phase currents and voltages are transformed to α-β-0 coordinates as shown in equation (4) and (5). ...
Model #: INTERNETX525
... Tripp Lite's INTERNETX525 standby UPS offers complete protection for PCs, workstations and other sensitive electronics in an attractive ultra-compact housing. Compatible with worldwide voltages of 230V at 50/60Hz to prevent data loss and system downtime by providing battery supported AC output durin ...
... Tripp Lite's INTERNETX525 standby UPS offers complete protection for PCs, workstations and other sensitive electronics in an attractive ultra-compact housing. Compatible with worldwide voltages of 230V at 50/60Hz to prevent data loss and system downtime by providing battery supported AC output durin ...
SBF5089Z 数据资料DataSheet下载
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. RoHS status based on EUDirective2002/95/EC (at time of this document revision). The information in this publicat ...
... Rating conditions to the device may reduce device reliability. Specified typical performance or functional operation of the device under Absolute Maximum Rating conditions is not implied. RoHS status based on EUDirective2002/95/EC (at time of this document revision). The information in this publicat ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.