Document name WECC Second Generation Wind Turbine Models
... event together with the level of voltage dip. Furthermore, there are some variations in the control between various vendors as shown in [7]. Following discussions at the last WECC MVWG meeting is was agreed that the simpler version of this generic-pitch controller proposed in [4] is acceptable for t ...
... event together with the level of voltage dip. Furthermore, there are some variations in the control between various vendors as shown in [7]. Following discussions at the last WECC MVWG meeting is was agreed that the simpler version of this generic-pitch controller proposed in [4] is acceptable for t ...
PA100/100 - VAC Amps
... Some designers erroneously market a lower voltage and current operating point (as little as 26 mA @ 550 VDC) as "Class A1." Be assured that the VAC and its tubes are strong enough to handle the more demanding, richer bias level. ...
... Some designers erroneously market a lower voltage and current operating point (as little as 26 mA @ 550 VDC) as "Class A1." Be assured that the VAC and its tubes are strong enough to handle the more demanding, richer bias level. ...
ADS8515 数据资料 dataSheet 下载
... The combination of CS (pin 25) and R/C (pin 24) low for a minimum of 40 ns immediately puts the sample/hold of the ADS8515 in the hold state and starts conversion n. BUSY (pin 26) goes low and stays low until conversion n is completed and the internal output register has been updated. The ADS8515 be ...
... The combination of CS (pin 25) and R/C (pin 24) low for a minimum of 40 ns immediately puts the sample/hold of the ADS8515 in the hold state and starts conversion n. BUSY (pin 26) goes low and stays low until conversion n is completed and the internal output register has been updated. The ADS8515 be ...
AD7892 LC MOS Single Supply, 12
... that operates from a single +5 V supply. The part contains a 1.47 µs successive approximation ADC, an on-chip track/hold amplifier, an internal +2.5 V reference and on-chip versatile interface structures that allow both serial and parallel connection to a microprocessor. The part accepts an analog i ...
... that operates from a single +5 V supply. The part contains a 1.47 µs successive approximation ADC, an on-chip track/hold amplifier, an internal +2.5 V reference and on-chip versatile interface structures that allow both serial and parallel connection to a microprocessor. The part accepts an analog i ...
Unit A152/01 - Modules B5, C5, P5 - Foundation tier
... Use black ink. HB pencil may be used for graphs and diagrams only. Answer all the questions. Read each question carefully. Make sure you know what you have to do before starting your answer. Write your answer to each question in the space provided. Additional paper may be used if necessary but you m ...
... Use black ink. HB pencil may be used for graphs and diagrams only. Answer all the questions. Read each question carefully. Make sure you know what you have to do before starting your answer. Write your answer to each question in the space provided. Additional paper may be used if necessary but you m ...
TDA9901 Digital programmable gain amplifier
... frequency decoupling of maximum 100nF was added on the middle point of the transformer secondary, to get a good "dynamic" ground. The dynamic analog signal is connected through a 220nF AC coupling to the input RF transformer via a short 50Ω microstrip matched line and a SMA plug-in connector. In fac ...
... frequency decoupling of maximum 100nF was added on the middle point of the transformer secondary, to get a good "dynamic" ground. The dynamic analog signal is connected through a 220nF AC coupling to the input RF transformer via a short 50Ω microstrip matched line and a SMA plug-in connector. In fac ...
Lecture 2 - Ohio University
... 3. To obtain the equivalent source resistance, short-circuit all independent voltage sources and open-circuit all independent current sources. Transducers in the network are left unchanged. Apply a unit voltage source (or a unit current source) at the terminals A-A’ and calculate the current I suppl ...
... 3. To obtain the equivalent source resistance, short-circuit all independent voltage sources and open-circuit all independent current sources. Transducers in the network are left unchanged. Apply a unit voltage source (or a unit current source) at the terminals A-A’ and calculate the current I suppl ...
Capacitor
... Whereas the resistor behaves all the “same” in AC or DC regimes, the capacitor doesn't - a capacitor will in general not conduct DC current, so it's influence becomes obvious only in AC and signal regime. ...
... Whereas the resistor behaves all the “same” in AC or DC regimes, the capacitor doesn't - a capacitor will in general not conduct DC current, so it's influence becomes obvious only in AC and signal regime. ...
List of Project Proposals: MSc (Power Engineering)
... Title Optimal Fuel Cell Power Extraction Renewable energy sources are now finding importance because of high energy cost and of environmental concerns. Fuel cells have found special applications in hybrid electric vehicles. Among different varieties, the proton exchange membrane (PEM) type of fuel c ...
... Title Optimal Fuel Cell Power Extraction Renewable energy sources are now finding importance because of high energy cost and of environmental concerns. Fuel cells have found special applications in hybrid electric vehicles. Among different varieties, the proton exchange membrane (PEM) type of fuel c ...
DAC8501 - Texas Instruments
... The output buffer amplifier is capable of generating rail-to-rail voltages on its output which gives an output range of 0V to VDD; it is capable of driving a load of 2kΩ in parallel with 1000pF to GND. The source and sink capabilities of the output amplifier can be seen in the typical characteristic ...
... The output buffer amplifier is capable of generating rail-to-rail voltages on its output which gives an output range of 0V to VDD; it is capable of driving a load of 2kΩ in parallel with 1000pF to GND. The source and sink capabilities of the output amplifier can be seen in the typical characteristic ...
Speeds Installation Time and Simplifies Wiring Wet Well Module
... Direct wiring to the high voltage pump load circuit is eliminated, resulting in a faster and safer installation. Unique strap-on current sensors sense pumps running on the load legs going to pumps. This direct sensing avoids misleading pump run indications. For example, if the pump motor fails to ru ...
... Direct wiring to the high voltage pump load circuit is eliminated, resulting in a faster and safer installation. Unique strap-on current sensors sense pumps running on the load legs going to pumps. This direct sensing avoids misleading pump run indications. For example, if the pump motor fails to ru ...
Shunt and series reactors for medium- and high-voltage
... Sample calculation: fixed or variable reactor? Particularly in cases where operators incur expenses for reactive power, procurement of a (variable) reactor is almost always economically worthwhile. The sample presents a case of combined feed-in from wind and solar power sources into the 380-kV grid ...
... Sample calculation: fixed or variable reactor? Particularly in cases where operators incur expenses for reactive power, procurement of a (variable) reactor is almost always economically worthwhile. The sample presents a case of combined feed-in from wind and solar power sources into the 380-kV grid ...
Megger Analog Insulation Tester Manual
... Safety Warnings and Testing Precautions must be read and understood before the instrument is used. They must be observed during use. The circuit under test must be switched off, de-energised and isolated before any test connections are made. Test leads, probes and crocodile clips must be in good ord ...
... Safety Warnings and Testing Precautions must be read and understood before the instrument is used. They must be observed during use. The circuit under test must be switched off, de-energised and isolated before any test connections are made. Test leads, probes and crocodile clips must be in good ord ...
CLASSIC LINE Eibiswald
... However, the components comply with various standards for incorporation and operation in devices covered by the Low Voltage Directive, in particular DIN VDE 0580 / 07.2000. The corresponding data is given on the data sheets for the individual components. ...
... However, the components comply with various standards for incorporation and operation in devices covered by the Low Voltage Directive, in particular DIN VDE 0580 / 07.2000. The corresponding data is given on the data sheets for the individual components. ...
Product Specifications: CLS-EXP-DIM
... 1. For a list of compatible ballasts, visit www.crestron.com/lightingcompatibility (PDF) 2. CLW-Series device must have a dedicated neutral. 3. Compatible only with forward-phase dimming modules. 4. Must be oriented upright, mounted to a vertical surface, with 6 inches (153 mm) minimum spacing a ...
... 1. For a list of compatible ballasts, visit www.crestron.com/lightingcompatibility (PDF) 2. CLW-Series device must have a dedicated neutral. 3. Compatible only with forward-phase dimming modules. 4. Must be oriented upright, mounted to a vertical surface, with 6 inches (153 mm) minimum spacing a ...
PowerPoint-Präsentation
... Periodic variations in generator angle or line angle due to transmission system disturbances Oscillations of generator angle or line angle are generally associated with transmission system disturbances and can occur due to step changes in load, sudden change of generator output, transmission line sw ...
... Periodic variations in generator angle or line angle due to transmission system disturbances Oscillations of generator angle or line angle are generally associated with transmission system disturbances and can occur due to step changes in load, sudden change of generator output, transmission line sw ...
Aalborg Universitet Infrastructure (AMI)
... suggested to consider up to 40th or 50th harmonic order for THD calculation, but, when there is a low chance for harmonic resonance, it is allowed to limit the calculation to 25th harmonic [11]. Some statistical harmonic indices proposed in different standards can be summarized as following [12]: ...
... suggested to consider up to 40th or 50th harmonic order for THD calculation, but, when there is a low chance for harmonic resonance, it is allowed to limit the calculation to 25th harmonic [11]. Some statistical harmonic indices proposed in different standards can be summarized as following [12]: ...
Eyeball Indicator
... particularly suitable for monitoring bus bars and line disconnectors in complex transformer substations which are represented in the form of a mimic diagram of relatively small dimensions. As the eyeball indicator can be installed at the nodal point of the bus bars, the mounting space can be reduced ...
... particularly suitable for monitoring bus bars and line disconnectors in complex transformer substations which are represented in the form of a mimic diagram of relatively small dimensions. As the eyeball indicator can be installed at the nodal point of the bus bars, the mounting space can be reduced ...
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.