sample questions - Department of Electrical Engineering, IIT
... 2. A single phase full bridge diode rectifier operates from a 220V, 50 Hz single phase supply and delivers power to a 50 Ω resistance connected across the output capacitor. The voltage across the output capacitor may be assumed to be ripple free. i) Find out the value of the filter inductor (with ne ...
... 2. A single phase full bridge diode rectifier operates from a 220V, 50 Hz single phase supply and delivers power to a 50 Ω resistance connected across the output capacitor. The voltage across the output capacitor may be assumed to be ripple free. i) Find out the value of the filter inductor (with ne ...
Pentium® 4 - CS Technion
... At all levels of the machine; e.g., programming models, OS etc. New programming models such as Transactional Memory may become very important in order to allow better parallelism. Do we need to develop a new memory paradigm to support it? ...
... At all levels of the machine; e.g., programming models, OS etc. New programming models such as Transactional Memory may become very important in order to allow better parallelism. Do we need to develop a new memory paradigm to support it? ...
AN INTELLIGENT HOT-SWAP CONTROLLER FOR ATCA FRU
... Addition of intelligence to the Hot-Swap circuitry makes additional features available that were not possible even with sophisticated, full-featured traditional Hot-Swap devices. For example, it is possible to add a -48V isolated supply (say, to power the AMCs of the circuit board) with its own seri ...
... Addition of intelligence to the Hot-Swap circuitry makes additional features available that were not possible even with sophisticated, full-featured traditional Hot-Swap devices. For example, it is possible to add a -48V isolated supply (say, to power the AMCs of the circuit board) with its own seri ...
A Tutorial on the Decibel
... #19 AWG copper wire) at a frequency of around 800 Hz. If you were measuring loss in a telephone line in the early 20th century, you might say that it amounted to “5 Miles of Standard Cable.” Since everyone knew how much signal was lost in 1 mile of cable, the effect of a 5-mile loss was easy to unde ...
... #19 AWG copper wire) at a frequency of around 800 Hz. If you were measuring loss in a telephone line in the early 20th century, you might say that it amounted to “5 Miles of Standard Cable.” Since everyone knew how much signal was lost in 1 mile of cable, the effect of a 5-mile loss was easy to unde ...
Load balancing by SVC Light
... The idea then is to create sinusoidal-like voltages at the three output terminals, from the assumed constant DC voltage across the capacitors, such that the current drawn by the converter circuit meets the identified objectives. The controllable elements in the circuit in Fig. 8 (the IGBTs) must alt ...
... The idea then is to create sinusoidal-like voltages at the three output terminals, from the assumed constant DC voltage across the capacitors, such that the current drawn by the converter circuit meets the identified objectives. The controllable elements in the circuit in Fig. 8 (the IGBTs) must alt ...
Basic Electrical Engineering for HVAC Engineers
... A control circuit is a special type of circuit that uses control devices to determine when loads are energized or de-energized by controlling current flow. Control circuits usually carry lower voltages than power circuits. Consider a 600 hp large industrial motor driving a water pump. The motor is c ...
... A control circuit is a special type of circuit that uses control devices to determine when loads are energized or de-energized by controlling current flow. Control circuits usually carry lower voltages than power circuits. Consider a 600 hp large industrial motor driving a water pump. The motor is c ...
integration of artificial intelligence control to the unified power quality
... and negative-sequence current, and regulate the dc-link voltage between both active power filters. It can be configured either with voltage-source converters or current source converters in single phase, three-phase three wire, or threephase four-wire configurations. The block diagram of the UPQC is ...
... and negative-sequence current, and regulate the dc-link voltage between both active power filters. It can be configured either with voltage-source converters or current source converters in single phase, three-phase three wire, or threephase four-wire configurations. The block diagram of the UPQC is ...
Rio Grande Electric Cooperative, Inc
... Available for a three-year period beginning on the effective date shown hereon as an experimental rate schedule to Consumers of the Cooperative located on or near the Cooperative’s three-phase lines for pump irrigation service on a minimum twelve (12) month contract basis. The use of energy under th ...
... Available for a three-year period beginning on the effective date shown hereon as an experimental rate schedule to Consumers of the Cooperative located on or near the Cooperative’s three-phase lines for pump irrigation service on a minimum twelve (12) month contract basis. The use of energy under th ...
Panasonic B Series AC Servo Motor Driver Manual
... inspecting, completely shut off the power input outside the Servo Drive. Leave it for 10 minutes or more and then start working. ♦ During the power is ON, keep away from the motor and the machine driven by the motor to provide against malfunction. ♦ When not in use for a long time, turn OFF the powe ...
... inspecting, completely shut off the power input outside the Servo Drive. Leave it for 10 minutes or more and then start working. ♦ During the power is ON, keep away from the motor and the machine driven by the motor to provide against malfunction. ♦ When not in use for a long time, turn OFF the powe ...
Transforming superior technology into reliable quality. Answers for energy. www.siemens.com/energy
... This load increase is taken into account by appropriate insulation of the windings. In addition, the high freedom from partial discharges (up to at least double the rated voltage), which far exceeds existing standards, ensures the high reliability of the transformer during operation. ...
... This load increase is taken into account by appropriate insulation of the windings. In addition, the high freedom from partial discharges (up to at least double the rated voltage), which far exceeds existing standards, ensures the high reliability of the transformer during operation. ...
Using Power MOSFETs with Power Manager Devices
... gate-to-source drive. Newer devices with much lower gate-voltage requirements are now available, with devices which can be turned-on to a useful degree with as little as 1.8 V. These lower gate-drive devices are preferred for use with the Power/Platform Management devices for most power-switching ap ...
... gate-to-source drive. Newer devices with much lower gate-voltage requirements are now available, with devices which can be turned-on to a useful degree with as little as 1.8 V. These lower gate-drive devices are preferred for use with the Power/Platform Management devices for most power-switching ap ...
Zebra
... built in, so can be used with joysticks. Joysticks analog and digital inputs connect to the 2x13 pin header. DE0-Nano doesn’t have a built-in LCD screen, but one can be connected using some of the unused pins in the 2x13 header. Unfortunately the 2x13 pin header doesn’t output 5volts, needed for th ...
... built in, so can be used with joysticks. Joysticks analog and digital inputs connect to the 2x13 pin header. DE0-Nano doesn’t have a built-in LCD screen, but one can be connected using some of the unused pins in the 2x13 header. Unfortunately the 2x13 pin header doesn’t output 5volts, needed for th ...
Improved Interline Unified Power-Quality Conditioner with
... Voltage-source converter (VSC)-based custom power devices are increasingly being used in custom power applications for improving the power quality (PQ) of power distribution systems. Devices such as distribution static compensator (DSTATCOM) and dynamic voltage restorer (DVR) are the facts devices. ...
... Voltage-source converter (VSC)-based custom power devices are increasingly being used in custom power applications for improving the power quality (PQ) of power distribution systems. Devices such as distribution static compensator (DSTATCOM) and dynamic voltage restorer (DVR) are the facts devices. ...
Calculating Efficiency
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
... Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant ...
Snap-Trol 183 Nema 1 Instruction Manual
... voltage level is controlled by controlling the phase angle firing of the SCR’s. A commutating (free wheeling) diode provides a path for current, during phase back operation as well as helping to minimize DC output ripple. The SCR firing circuit controls the phase angle firing of the SCR’s response t ...
... voltage level is controlled by controlling the phase angle firing of the SCR’s. A commutating (free wheeling) diode provides a path for current, during phase back operation as well as helping to minimize DC output ripple. The SCR firing circuit controls the phase angle firing of the SCR’s response t ...
GEAFOL converter transformers
... This load increase is taken into account by appropriate insulation of the windings. In addition, the high freedom from partial discharges (up to at least double the rated voltage), which far exceeds existing standards, ensures the high reliability of the transformer during operation. ...
... This load increase is taken into account by appropriate insulation of the windings. In addition, the high freedom from partial discharges (up to at least double the rated voltage), which far exceeds existing standards, ensures the high reliability of the transformer during operation. ...
A Wind-Solar-Energy Storage System Leading to High Renewable
... also be considered. Therefore, a set of appropriate operating modes for diesel generators to meet the system reliability and economic is important. Generally, the determination of the maximum wind power penetration will be determined by the following limit criterions: minimal and maximum power produ ...
... also be considered. Therefore, a set of appropriate operating modes for diesel generators to meet the system reliability and economic is important. Generally, the determination of the maximum wind power penetration will be determined by the following limit criterions: minimal and maximum power produ ...
Laser Technology in the Medical and Cosmetic Industry
... (which vary for different types of laser technologies). Finally, power solutions to specific applications that utilise Excelsys products are described. 1.0 What is a Laser: To answer the question what is a Laser, we must first consider what light is. Light is electromagnetic radiation (fluctuations ...
... (which vary for different types of laser technologies). Finally, power solutions to specific applications that utilise Excelsys products are described. 1.0 What is a Laser: To answer the question what is a Laser, we must first consider what light is. Light is electromagnetic radiation (fluctuations ...
Comparative Study of Different Switching Surfaces for Sliding
... Uninterruptible power supplies are essential parts in interfacing critical loads such as computers, communication systems, medical equipments, and data processing systems to the utility power grid. Problems like power failure, spike/transient, under voltage, over voltage, noise and etc, may cause pr ...
... Uninterruptible power supplies are essential parts in interfacing critical loads such as computers, communication systems, medical equipments, and data processing systems to the utility power grid. Problems like power failure, spike/transient, under voltage, over voltage, noise and etc, may cause pr ...
- Phi Education
... designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed decay modes. This ...
... designed to operate bipolar stepper motor in full, half, quarter and one-eighth step-modes. Lynx has motor supply voltage of 8V to 35V and maximum current rating of ±2.5 A. The A3977 includes a fixed off-time current regulator that has the ability to operate in slow, fast, or mixed decay modes. This ...
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.