• Study Resource
  • Explore
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
harmonic current compensation in self excited induction generator
harmonic current compensation in self excited induction generator

TGA4541-SM初步数据资料DataSheet下载
TGA4541-SM初步数据资料DataSheet下载

... herein is provided "AS IS, WHERE IS" and with all faults, and the entire risk associated with such information is entirely with the user. All information contained herein is subject to change without notice. Customers should obtain and verify the latest relevant information before placing orders for ...
3-winding flyback transformer model extraction using time
3-winding flyback transformer model extraction using time

GT3412451250
GT3412451250

... STAND-ALONE power systems using local renewable energy sources like wind, biomass, and hydro are attractive to the remote communities [1]. Compared with grid connected counterparts, they avoid long transmission lines and thereby associate losses and cost. The self-excited induction generator (SEIG) ...
Compact Power meter for cost savings through Energy monitoring
Compact Power meter for cost savings through Energy monitoring

... In case of a mains blackout, the power to the instrument is automatically supplied by the Alkaline batteries (Max continuous measurement: 15 hours) In the case of both power supplies to the instrument being interrupted, recorded data just before the event of the interruption will be saved. Rechargea ...
Interleaving and switching pattern modulation to conducted EMI
Interleaving and switching pattern modulation to conducted EMI

7.0 - Radio Signals and Measurements
7.0 - Radio Signals and Measurements

... E4B12 -- What is the significance of voltmeter sensitivity expressed in ohms per volt? A. The full scale reading of the voltmeter multiplied by its ohms per volt rating will provide the input impedance of the voltmeter B. When used as a galvanometer, the reading in volts multiplied by the ohms/volt ...
Performance Improvement of Phase Displacement Modulated Inverter
Performance Improvement of Phase Displacement Modulated Inverter

Amateur Extra License Class - Wabash Valley Amateur Radio Asso
Amateur Extra License Class - Wabash Valley Amateur Radio Asso

... E4B12 -- What is the significance of voltmeter sensitivity expressed in ohms per volt? A. The full scale reading of the voltmeter multiplied by its ohms per volt rating will provide the input impedance of the voltmeter B. When used as a galvanometer, the reading in volts multiplied by the ohms/volt ...
Chapter 1 Problems
Chapter 1 Problems

FM_Lecture3 - WordPress.com
FM_Lecture3 - WordPress.com

Method for measurement of the sensitivity of crystal resonators to
Method for measurement of the sensitivity of crystal resonators to

... The phase slope is related to the loaded Q, QL , by the expression: ...
PDF
PDF

... technique. In digital direct design approach the compensator is designed directly in discrete-time domain by including time delay. This method has the advantage that pole-zero of the compensator are placed directly which results in better phase margin and bandwidth of the converter. In this paper th ...
III. generator systems for wind turbines
III. generator systems for wind turbines

... rotor windings. Most doubly-fed electric machines in industry today are three-phase wound-rotor induction machines. Although their principles of operation have been known for decades, doubly-fed electric machines have only recently entered into common use. This is due almost exclusively to the adven ...
T121016A Model HEC-4 Head End Combiner.pub
T121016A Model HEC-4 Head End Combiner.pub

LTC1069-6 - Single Supply, Very Low Power, Elliptic Lowpass Filter
LTC1069-6 - Single Supply, Very Low Power, Elliptic Lowpass Filter

... (±10%) is an adequate clock source for the device. The power supply for the clock source should not necessarily be the filter’s power supply. The analog ground of the filter should be connected to the clock’s ground at a single point only. Table 1 shows the clock’s low and high level threshold value f ...
CM-30 CM-30W - Performance Audio
CM-30 CM-30W - Performance Audio

Document
Document

... Transient Cancellation Control Method for Future Generation of Microprocessors The idea of the transient cancellation control scheme is to create a deliberate undershoot before an expected overshoot and vice versa to cancel the expected large overshoot to keep the output voltage within the allowabl ...
Sample Study Material
Sample Study Material

... There are 3 channels Each channel is simplex (Transmission occurs in one way) For full duplex communication:  Use two different channels (front and reverse channels)  Use time division in a channel ...
SESCTION-6-Chapter_16_rev1a
SESCTION-6-Chapter_16_rev1a

... irregular due to large numbers of non-linear loads and generators in the grid. More in particular, power electronic based systems such as adjustable speed drives, power supplies for IT-equipment and high efficiency lighting and inverters in systems generating electricity from distributed renewable e ...
a refinement of harmonics using apf with sinusoidal pulse width
a refinement of harmonics using apf with sinusoidal pulse width

Synchronous Generator Line Synchronization
Synchronous Generator Line Synchronization

M-Flex™ Enclosed Drive
M-Flex™ Enclosed Drive

LAB#7 - SIUE
LAB#7 - SIUE

2008. Lecture 11 (361-1
2008. Lecture 11 (361-1

... output resistance, about 26  at IE=1 mA. However, compared to a lower than 1  series resistance of the inductor, it is still too high. Of course, it will be low enough at IE=100 mA, but it is too much of power consumption.) In a general case, the small-signal voltage gains of these amplifiers are ...
< 1 ... 148 149 150 151 152 153 154 155 156 ... 238 >

Utility frequency



The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the frequency of the oscillations of alternating current (AC) in an electric power grid transmitted from a power plant to the end-user. In large parts of the world this is 50 Hz, although in the Americas and parts of Asia it is typically 60 Hz. Current usage by country or region is given in the list of mains power around the world.During the development of commercial electric power systems in the late 19th and early 20th centuries, many different frequencies (and voltages) had been used. Large investment in equipment at one frequency made standardization a slow process. However, as of the turn of the 21st century, places that now use the 50 Hz frequency tend to use 220–240 V, and those that now use 60 Hz tend to use 100–127 V. Both frequencies coexist today (Japan uses both) with no great technical reason to prefer one over the other and no apparent desire for complete worldwide standardization.Unless specified by the manufacturer to operate on both 50 and 60 Hz, appliances may not operate efficiently or even safely if used on anything other than the intended frequency.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report