Shunt reactive power compensation
... substation can raise voltage when the load is high. The shunt capacitor banks can be permanently connected to the bus (fixed capacitor bank) or can be switched as needed. Switching can be based on time, if load variation is predictable, or can be based on voltage, power factor, or line current. Gene ...
... substation can raise voltage when the load is high. The shunt capacitor banks can be permanently connected to the bus (fixed capacitor bank) or can be switched as needed. Switching can be based on time, if load variation is predictable, or can be based on voltage, power factor, or line current. Gene ...
LF412 Low Offset Low Drift Dual JFET Input Operational Amplifier
... consequently there is negligible effect on stability margin. However, if the feedback pole is less than approximately 6 times the expected 3 dB frequency a lead capacitor should be placed from the output to the input of the op amp. The value of the added capacitor should be such that the RC time con ...
... consequently there is negligible effect on stability margin. However, if the feedback pole is less than approximately 6 times the expected 3 dB frequency a lead capacitor should be placed from the output to the input of the op amp. The value of the added capacitor should be such that the RC time con ...
Feb 2000 Tiny SOT-23 Step-Down Regulator Switches at 1MHz for
... popular choice for many portable applications due to its light weight and high energy density, but it has a cell voltage that ranges from 4.2V to 2.5V. Thus, a simple buck or boost topology cannot be used to provide a 3.3V output voltage. In Figure 7, the LTC1701 is used in a zeta configuration to s ...
... popular choice for many portable applications due to its light weight and high energy density, but it has a cell voltage that ranges from 4.2V to 2.5V. Thus, a simple buck or boost topology cannot be used to provide a 3.3V output voltage. In Figure 7, the LTC1701 is used in a zeta configuration to s ...
Operating Instructions Switch Mode Power Supply AC 2000 / DC 2000
... The unit has an amplified smoothing module with large electrolytic capacitors on the output side. If the de-energized capacitors are switched over to the battery by engaging the DC isolator or DC fuse this causes a large surge of charging current. This can be avoided by switching the unit on before ...
... The unit has an amplified smoothing module with large electrolytic capacitors on the output side. If the de-energized capacitors are switched over to the battery by engaging the DC isolator or DC fuse this causes a large surge of charging current. This can be avoided by switching the unit on before ...
LF412 Low Offset, Low Drift Dual JFET Input Operational Amplifier
... consequently there is negligible effect on stability margin. However, if the feedback pole is less than approximately 6 times the expected 3 dB frequency a lead capacitor should be placed from the output to the input of the op amp. The value of the added capacitor should be such that the RC time con ...
... consequently there is negligible effect on stability margin. However, if the feedback pole is less than approximately 6 times the expected 3 dB frequency a lead capacitor should be placed from the output to the input of the op amp. The value of the added capacitor should be such that the RC time con ...
UC3843 – Current Mode PWM Controller
... Shutdown of the UC1842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two diode drops above ground. Either method causes the output of the PWM comparator to be high (refer to block diagram). The PWM latch is reset dominant so that the output will remain ...
... Shutdown of the UC1842 can be accomplished by two methods; either raise pin 3 above 1V or pull pin 1 below a voltage two diode drops above ground. Either method causes the output of the PWM comparator to be high (refer to block diagram). The PWM latch is reset dominant so that the output will remain ...
IF-D95 - Industrial Fiber Optics
... The IF-D95T and IF-D95OC are high-sensitivity photologic detectors housed in “connector-less” style plastic fiber optic packages. The detector contains an IC with a photodiode, linear amplifier, and Schmitt trigger logic circuit. The IF-D95T features a TTL/CMOS compatible totem-pole output, while th ...
... The IF-D95T and IF-D95OC are high-sensitivity photologic detectors housed in “connector-less” style plastic fiber optic packages. The detector contains an IC with a photodiode, linear amplifier, and Schmitt trigger logic circuit. The IF-D95T features a TTL/CMOS compatible totem-pole output, while th ...
Intro & Circuit Review I - University of Delaware Dept. of Physics
... • Output current does not change with voltage generated • Voltage generated determined by load resistance (V=IR) • Infinite internal resistance ...
... • Output current does not change with voltage generated • Voltage generated determined by load resistance (V=IR) • Infinite internal resistance ...
IOSR Journal of Electrical and Electronics Engineering PP 01-06 www.iosrjournals.org
... convert the DC link voltage Vdc on the capacitor to a voltage source of adjustable magnitude and phase. Therefore the D-STATCOM can be treated as a voltage controlled source. The D-STATCOM can also be seen as a current controlled source. The basic objective of a VSI is to produce a sinusoidal AC vol ...
... convert the DC link voltage Vdc on the capacitor to a voltage source of adjustable magnitude and phase. Therefore the D-STATCOM can be treated as a voltage controlled source. The D-STATCOM can also be seen as a current controlled source. The basic objective of a VSI is to produce a sinusoidal AC vol ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... voltages, currents, and real and reactive power flows in a system under a given load conditions. Basically Newton-Raphson and Gauss-Seidel methods are used for load flow study but now it become incompetent due to such factors radial structure, high ratio of resistance and reactance and unbalanced lo ...
... voltages, currents, and real and reactive power flows in a system under a given load conditions. Basically Newton-Raphson and Gauss-Seidel methods are used for load flow study but now it become incompetent due to such factors radial structure, high ratio of resistance and reactance and unbalanced lo ...
Smart Grid Ready Control Delivers Automation and Efficiency 6/18/12 Read more
... ―Utilities need intelligent solutions to improve distribution system voltages and power factor in order to manage generation demand and energy consumption while maintaining power quality,‖ said Mark Thurman, president, Cooper Power Systems. ―The CBC-8000 is an easy-to-configure-andmaintain Smart Gri ...
... ―Utilities need intelligent solutions to improve distribution system voltages and power factor in order to manage generation demand and energy consumption while maintaining power quality,‖ said Mark Thurman, president, Cooper Power Systems. ―The CBC-8000 is an easy-to-configure-andmaintain Smart Gri ...
R09 Set No. 2
... Instrumentation And Control Engineering Time: 3 hours Max Marks: 75 Answer any FIVE Questions All Questions carry equal marks ...
... Instrumentation And Control Engineering Time: 3 hours Max Marks: 75 Answer any FIVE Questions All Questions carry equal marks ...
Scavenger_hunt_student
... called “subtransmission lines,” carry electricity through a city or to large industrial consumers. They can be made of steel or wood. A typical voltage might be 69,000 volts. The smallest power lines (and the ones most commonly seen near your home) are called “distribution lines.” They carry electri ...
... called “subtransmission lines,” carry electricity through a city or to large industrial consumers. They can be made of steel or wood. A typical voltage might be 69,000 volts. The smallest power lines (and the ones most commonly seen near your home) are called “distribution lines.” They carry electri ...
occhiello: indispensabile - mtc-m21b:80
... Patel (2005) declare that the only power source in the space environment is the solar radiation, then any system that do not use the solar energy have to carry his own power source, like primary battery nuclear energy or a fuel cell.[1] The photoelectric effect have been discovered by Edmond Becquer ...
... Patel (2005) declare that the only power source in the space environment is the solar radiation, then any system that do not use the solar energy have to carry his own power source, like primary battery nuclear energy or a fuel cell.[1] The photoelectric effect have been discovered by Edmond Becquer ...
SEMICONDUCTOR DEVICES
... either visible light at different coloured wavelengths, invisible infra-red light for remote controls or laser type light when a forward current is passed through them. LED are semiconductor devices that convert electrical energy into light energy ...
... either visible light at different coloured wavelengths, invisible infra-red light for remote controls or laser type light when a forward current is passed through them. LED are semiconductor devices that convert electrical energy into light energy ...
UCI Power Electronics Lab
... frequency PWM control method is presented, And the converter can handle high power with a simple configuration; • The multiplier and the sensor for input voltage are not needed; • The control method is very simple and reliable which achieves low total harmonic distortion and high a power factor at l ...
... frequency PWM control method is presented, And the converter can handle high power with a simple configuration; • The multiplier and the sensor for input voltage are not needed; • The control method is very simple and reliable which achieves low total harmonic distortion and high a power factor at l ...
Chapter 18
... A 10-V-emf battery is connected in series with a 2-μF capacitor, a 2-Ω resistor, an ammeter and a switch. A voltmeter is connected in parallel across the capacitor. At the instant the switch is closed, what are the current and capacitor voltage readings, respectively? (RC Circuit) ...
... A 10-V-emf battery is connected in series with a 2-μF capacitor, a 2-Ω resistor, an ammeter and a switch. A voltmeter is connected in parallel across the capacitor. At the instant the switch is closed, what are the current and capacitor voltage readings, respectively? (RC Circuit) ...
IE (3341105)
... process over again. Then as before, the Monostable Multivibrator has only “ONE” stable state. The Monostable 555 Timer circuit triggers on a negative-going pulse applied to pin 2 and this trigger pulse must be much shorter than the output pulse width allowing time for the timing capacitor to charge ...
... process over again. Then as before, the Monostable Multivibrator has only “ONE” stable state. The Monostable 555 Timer circuit triggers on a negative-going pulse applied to pin 2 and this trigger pulse must be much shorter than the output pulse width allowing time for the timing capacitor to charge ...
Regulating Pulse Width Modulator
... used to boost the available current. A rugged low frequency audio-type transistor should be used, and lead lengths between the PWM and transistor should be as short as possible to minimize the risk of oscillations. Even so, some types of transistors may require collector-base capacitance for stabili ...
... used to boost the available current. A rugged low frequency audio-type transistor should be used, and lead lengths between the PWM and transistor should be as short as possible to minimize the risk of oscillations. Even so, some types of transistors may require collector-base capacitance for stabili ...
Fruit and Veggie Batteries: Finding Current, Voltage and Resistance
... Roll the fruit a little to make it a little juicier in the inside. Insert one electrode material into the juicy part of the fruit. Insert a second electrode into the juicy part of the fruit, but not so the two electrodes touch. Voltage measurements: -Measure the voltage of several different fruits/v ...
... Roll the fruit a little to make it a little juicier in the inside. Insert one electrode material into the juicy part of the fruit. Insert a second electrode into the juicy part of the fruit, but not so the two electrodes touch. Voltage measurements: -Measure the voltage of several different fruits/v ...
Resistors in Series and Parallel
... equals the total current out of that point. By convention, current flows out of the positive terminal of a battery or power supply and into the negative terminal. For current to be maintained in a circuit there must be a complete conducting path. Voltage is a measure of the electric potential differ ...
... equals the total current out of that point. By convention, current flows out of the positive terminal of a battery or power supply and into the negative terminal. For current to be maintained in a circuit there must be a complete conducting path. Voltage is a measure of the electric potential differ ...
Basic PC Compatible ADM1024 LifeGuard™ SYSTEM
... speed monitoring circuitry plus analog/digital conversion for digitization and reporting over the Systems Management Bus (SMBus™) to the DMI Service Provider and/or SMBIOS. ...
... speed monitoring circuitry plus analog/digital conversion for digitization and reporting over the Systems Management Bus (SMBus™) to the DMI Service Provider and/or SMBIOS. ...
SolarQuestÒ es una empresa que desarrolla equipo de alta
... Cruz, California. Our Power Management System has been customized to match our solar powered, grid-backup energy system, and we have also included climate measurements. This information advises us of how much electric power our solar panels produce, how much we take from the grid, how much our AC lo ...
... Cruz, California. Our Power Management System has been customized to match our solar powered, grid-backup energy system, and we have also included climate measurements. This information advises us of how much electric power our solar panels produce, how much we take from the grid, how much our AC lo ...
Switched-mode power supply
A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.