Numerical Analysis on Transmission Efficiency of Evanescent
... demonstrating the applicability of the wireless transmission system even in the presence of extraneous environmental objects. However, because the approach is based on using CMT to analyze the transmission efficiency, it is difficult to devise a way of making the transmitting or receiving element re ...
... demonstrating the applicability of the wireless transmission system even in the presence of extraneous environmental objects. However, because the approach is based on using CMT to analyze the transmission efficiency, it is difficult to devise a way of making the transmitting or receiving element re ...
motors for copeland™ semi-hermetic compressors
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
... suitable for one voltage range (see Table 1). The first part winding (2/3) on terminals 1-2-3 can be used for part winding start. After a time delay of 1 ± 0.1 seconds, the second part winding, the 1/3 winding on terminals 7-8-9 must be brought on line. The part winding motor can be regarded as two ...
High Voltage Power Supplies
... Series 2290 High Voltage Power Supplies facilitate high voltage device and material testing, as well as high energy physics experimentation. The Model 2290-5 5kV Power Supply provides voltage outputs up to 5000V, and the Model 2290-10 10kV Power Supply offers up to 10,000V. The Model 2290-5 has a 5m ...
... Series 2290 High Voltage Power Supplies facilitate high voltage device and material testing, as well as high energy physics experimentation. The Model 2290-5 5kV Power Supply provides voltage outputs up to 5000V, and the Model 2290-10 10kV Power Supply offers up to 10,000V. The Model 2290-5 has a 5m ...
3-phase motor control demonstration board featuring IGBT
... installed. The kit is not electrically isolated from the AC/DC input. The demonstration board is directly linked to the mains voltage. No insulation is ensured between accessible parts and high voltage. All measuring equipment must be isolated from the mains before powering the board. When using an ...
... installed. The kit is not electrically isolated from the AC/DC input. The demonstration board is directly linked to the mains voltage. No insulation is ensured between accessible parts and high voltage. All measuring equipment must be isolated from the mains before powering the board. When using an ...
RF5765 2.4GHz to 2.5GHz 802.11b/g/n WiFi FRONT-END MODULE Features
... The LNA bias components consist of an inductor and a decoupling capacitor. The inductor value is critical to optimize NF and return loss at the RX output. For best performance and trade off between critical parameters such as NF, Gain, and IP3, the total inductance including board trace should be ap ...
... The LNA bias components consist of an inductor and a decoupling capacitor. The inductor value is critical to optimize NF and return loss at the RX output. For best performance and trade off between critical parameters such as NF, Gain, and IP3, the total inductance including board trace should be ap ...
SKY77761-11 数据资料DataSheet下载
... active circuitry, including input and interstage matching circuits. The silicon CMOS support die, providing precision biasing for the MMIC affords a true CMOS-compatible control interface. Output match into a 50-ohm load, realized off-chip within the module package, optimizes efficiency and power pe ...
... active circuitry, including input and interstage matching circuits. The silicon CMOS support die, providing precision biasing for the MMIC affords a true CMOS-compatible control interface. Output match into a 50-ohm load, realized off-chip within the module package, optimizes efficiency and power pe ...
Induction Motor
... Induction Motors transform electrical energy into mechanical energy. It can be part of a pump or fan, or connected to some other form of mechanical equipment such as a winder, conveyor, or mixer. ...
... Induction Motors transform electrical energy into mechanical energy. It can be part of a pump or fan, or connected to some other form of mechanical equipment such as a winder, conveyor, or mixer. ...
Voltage Sag Immunity Tests: Alex McEachern
... without operator intervention. However, if the same criteria is applied to a system component, the system must be prepared to tolerate mis-operations by its components – something that is rarely possible. In general, components need to meet tougher criteria than subsystems, and subsystems need to me ...
... without operator intervention. However, if the same criteria is applied to a system component, the system must be prepared to tolerate mis-operations by its components – something that is rarely possible. In general, components need to meet tougher criteria than subsystems, and subsystems need to me ...
IGBT or MOSFET: Choose Wisely
... The MOSFET, however, is a device that is voltage- and not current-controlled. MOSFETs have a positive temperature coefficient, stopping thermal runaway. The on-state-resistance has no theoretical limit, hence on-state losses can be far lower. The MOSFET also has a body-drain diode, which is particul ...
... The MOSFET, however, is a device that is voltage- and not current-controlled. MOSFETs have a positive temperature coefficient, stopping thermal runaway. The on-state-resistance has no theoretical limit, hence on-state losses can be far lower. The MOSFET also has a body-drain diode, which is particul ...
Harmonics Filter Design
... In recent years, harmonics are considered as one of the most essential problems in the industrial power distribution networks. The problem of harmonics is increasing due to the use of the variable speed drives (VSDs), the uninterruptible power supplies (UPS), and the solid-state devices. Harmonics c ...
... In recent years, harmonics are considered as one of the most essential problems in the industrial power distribution networks. The problem of harmonics is increasing due to the use of the variable speed drives (VSDs), the uninterruptible power supplies (UPS), and the solid-state devices. Harmonics c ...
S8VK-G (15/30/60/120/240/480-W Models)
... *1. Do not use an inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the Power Supply may result in ignition or burning. *2. For a cold start at 25°C. Refer to Engineering Data on page 11 for details. *3. If ...
... *1. Do not use an inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the Power Supply may result in ignition or burning. *2. For a cold start at 25°C. Refer to Engineering Data on page 11 for details. *3. If ...
BD1604MUV
... ●Notes for Use (1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exc ...
... ●Notes for Use (1) Absolute Maximum Ratings An excess in the absolute maximum ratings, such as supply voltage, temperature range of operating conditions, etc., can break down devices, thus making impossible to identify breaking mode such as a short circuit or an open circuit. If any special mode exc ...
3-Phase BLDC/PMSM Low Voltage Power Stage User Manual
... The MC33937A provides over-current and under-voltage functions. The amplified DC Bus current signal is filtered to remove spikes, and then it is internally fed into the MC33937 over-current comparator input. The OC comparator threshold level is adjusted by external trimmer R38 and filtered by C43. T ...
... The MC33937A provides over-current and under-voltage functions. The amplified DC Bus current signal is filtered to remove spikes, and then it is internally fed into the MC33937 over-current comparator input. The OC comparator threshold level is adjusted by external trimmer R38 and filtered by C43. T ...
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1680-1687
... However, the full potential of the motor could not be utilized with the mechanical switches available in these days. So, these motors were not widely used in industrial applications due to no simultaneous progress in the field of power electronics and semiconductor switches which are necessary in mo ...
... However, the full potential of the motor could not be utilized with the mechanical switches available in these days. So, these motors were not widely used in industrial applications due to no simultaneous progress in the field of power electronics and semiconductor switches which are necessary in mo ...
Power Circuits and Transformers
... (EMS). Like the LVDAC-EMS (or LVDAM-EMS) system, LVSIM®-EMS runs on a PC-type computer under the Microsoft® Windows® operating environment. LVSIM®-EMS recreates a three-dimensional classroom laboratory on a computer screen. Using the mouse, students can install an EMS training system in this virtual ...
... (EMS). Like the LVDAC-EMS (or LVDAM-EMS) system, LVSIM®-EMS runs on a PC-type computer under the Microsoft® Windows® operating environment. LVSIM®-EMS recreates a three-dimensional classroom laboratory on a computer screen. Using the mouse, students can install an EMS training system in this virtual ...
3rd
... requirements apply as they may participate in the grid control. For low power installations it is also expected that in the near future the utilities will allow them to exchange reactive power but new regulations are still expected. Marco Liserre ...
... requirements apply as they may participate in the grid control. For low power installations it is also expected that in the near future the utilities will allow them to exchange reactive power but new regulations are still expected. Marco Liserre ...
Implementation of FPGA based D.C motor Speed Controller using
... board. The mentioned literature topics are studied from book and as well as resources from internet. P.W.M speed controlling method is programmed on the FPGA. The P.W.M signal of 100Hz is transmitted from GPIO_0 (0) to the D.C gear motor via motor driving circuit. The energy that switching power con ...
... board. The mentioned literature topics are studied from book and as well as resources from internet. P.W.M speed controlling method is programmed on the FPGA. The P.W.M signal of 100Hz is transmitted from GPIO_0 (0) to the D.C gear motor via motor driving circuit. The energy that switching power con ...
Emergency Voltage Stability Controls: An Overview
... Operator (TSO) to decrease the posted available transfer capabilities, to reschedule generation, to request some units to be kept in operation for voltage support and, in the last resort, to shed load. Of course, any of these actions has a nonnegligible cost. Furthermore, in the prevailing open mark ...
... Operator (TSO) to decrease the posted available transfer capabilities, to reschedule generation, to request some units to be kept in operation for voltage support and, in the last resort, to shed load. Of course, any of these actions has a nonnegligible cost. Furthermore, in the prevailing open mark ...
O A RIGINAL RTICLES
... A large number of studies were conducted on LEDs as an energy efficient lamp but most of researchers pay their attention on the internal ballast circuit design and enhancing their performance (Gu et al., 2009; Chen and Chung, 2011; Qu et al., 2011). A few contributions focus on harmonic emissions of ...
... A large number of studies were conducted on LEDs as an energy efficient lamp but most of researchers pay their attention on the internal ballast circuit design and enhancing their performance (Gu et al., 2009; Chen and Chung, 2011; Qu et al., 2011). A few contributions focus on harmonic emissions of ...
Aalborg Universitet
... dynamic and simplicity, the deadbeat current control has some limitations, especially when it is applied to a SCR unit. In this paper those issues with a possible solution have been addressed. Finally, the current modulator is synchronized with the grid based on a common Phase-Locked-Loop (PLL) appl ...
... dynamic and simplicity, the deadbeat current control has some limitations, especially when it is applied to a SCR unit. In this paper those issues with a possible solution have been addressed. Finally, the current modulator is synchronized with the grid based on a common Phase-Locked-Loop (PLL) appl ...
Interpretation of power phenomena in three phase systems with
... compensators not only reduce the load generated current harmonics, but also if connected in series, the distribution side generated harmonics and unbalance in the system. This section is important pertaining to the analysis and interpretations provided later in the study. 1.3 Background of two majo ...
... compensators not only reduce the load generated current harmonics, but also if connected in series, the distribution side generated harmonics and unbalance in the system. This section is important pertaining to the analysis and interpretations provided later in the study. 1.3 Background of two majo ...
High Frequency Harmonics Emission in Smart Grids
... The term ‘smart grid‘, is nowadays very often used in many publications and so far has not been explicitly defined, however it refers mainly to such an operation of electricity delivery process that allows to optimize energy efficiency by flexible interconnection of central and distributed generator ...
... The term ‘smart grid‘, is nowadays very often used in many publications and so far has not been explicitly defined, however it refers mainly to such an operation of electricity delivery process that allows to optimize energy efficiency by flexible interconnection of central and distributed generator ...
Testing the Limits of Power
... could not at least correlate. These results showed that an analysis of AGPS receiver level performance can be done by using a system level test. We also determined that using the actual wireless delivery mechanism does not test AGPS or HS GPS, rather it tests latency. 4. Accuracy and power consumpti ...
... could not at least correlate. These results showed that an analysis of AGPS receiver level performance can be done by using a system level test. We also determined that using the actual wireless delivery mechanism does not test AGPS or HS GPS, rather it tests latency. 4. Accuracy and power consumpti ...
module 1
... For about three decades between 1840 and 1870 engineers like Charles Wheatstone, Alfred varley, Siemens brothers Werner and Carl etc. built primitive generators using the induction principle. It was also observed around the same time that when current carrying carbon electrodes were drawn apart, bri ...
... For about three decades between 1840 and 1870 engineers like Charles Wheatstone, Alfred varley, Siemens brothers Werner and Carl etc. built primitive generators using the induction principle. It was also observed around the same time that when current carrying carbon electrodes were drawn apart, bri ...
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.