• 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
Sorensen XDL Series II 105–215 W 35–56 V 0.5–5 A
Sorensen XDL Series II 105–215 W 35–56 V 0.5–5 A

... • Fully isolated outputs for maximum flexibility • Constant voltage or constant current operation with automatic crossover and mode indication • GPIB, RS-232, USB and LXI Compliant LAN ...
Accuracy - TI Chen Associates
Accuracy - TI Chen Associates

... The power required for correct operation of a transducer is supplied via the line being measured. Separately Powered The power required for correct operation of a transducer is supplied via an external or auxiliary power source, rather than via the line being measured. Setting Accuracy The ability t ...
CC 1800/2800/4000 - Peavey Commercial Audio
CC 1800/2800/4000 - Peavey Commercial Audio

... providing gentle gain reduction when the signal approaches the clipping threshold. ...
Midway Design Review
Midway Design Review

control strategies for generator side converter of direct driven
control strategies for generator side converter of direct driven

... to solve the issue of generator power factor [5]. For available wind energy conversion systems (WECS), the this topology of converter, operation at relatively low wind direct driven Permanent magnet synchronous generator speeds is possible due to the inclusion of the boost circuit. variable speed WE ...
335 AUTO TRANSFER SWITCH CONTROL MODULE DSE Ats
335 AUTO TRANSFER SWITCH CONTROL MODULE DSE Ats

R210-90-5
R210-90-5

... Conclusion: ...
60kW Natural Gas On-Site Power Industrial Generator
60kW Natural Gas On-Site Power Industrial Generator

III. 3-phase Active Shunt Filter
III. 3-phase Active Shunt Filter

... (VSWT) with active power control. VSWT has some advantages when compared to FSWT, e.g. lower mechanical stress, increased energy capture, active reactive power / voltage control [2]. Operation principle of VSWT is to decouple system electrical frequency from mechanical frequency. Power electronics h ...
Field Mount Status Relay
Field Mount Status Relay

Un resumen (ivonne).pmd - Ingeniería Energética
Un resumen (ivonne).pmd - Ingeniería Energética

FEEE
FEEE

download
download

... Flasher System Compliances: FAA AC 150/5345-51 SSALR (Type I) ICAO ANNEX 14 ...
II. Modeling of the PMSM
II. Modeling of the PMSM

ROBICON Perfect Harmony
ROBICON Perfect Harmony

... One of the most inefficient power events occurs at motor start-up. Typically, a motor “slams” on – going from off to 100 percent with the flick of a switch. By contrast, the “soft start” features of the ROBICON Perfect Harmony decrease stresses that can limit the life of your equipment – gradually i ...
Power Quality Anyalyser
Power Quality Anyalyser

... low cost power quality analyser based on the state of the art Digital Signal Processors. A perfect power supply would be one that is always available, always within voltage and frequency tolerances, and has a pure noise free sinusoidal wave shape. Naturally, long power interruptions are a problem fo ...
CPC1964B - IXYS Integrated Circuits Division
CPC1964B - IXYS Integrated Circuits Division

... IXYS Integrated Circuits Division makes no representations or warranties with respect to the accuracy or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. Neither circuit patent licenses nor ...
jaquet t400 - Istec International
jaquet t400 - Istec International

Product Brief (1200V XPT IGBTs)_15OCT12
Product Brief (1200V XPT IGBTs)_15OCT12

... turn-off losses and/or remove snubbers/clamps from their designs, IGBTs with co-packed ultra-fast ...
How to Choose Power Supplies
How to Choose Power Supplies

... speed. However, this is a general rule. The truth is that the Back EMF voltage is proportional to the rate of change of magnetic flux in the windings of the stator. As a result, constant speeds produce constant and predictable voltages. However, sudden changes due to decelerations or hard stop crash ...
DS 2340 ZX0.2 en.indd
DS 2340 ZX0.2 en.indd

... feeders, busbars and sectionalizers offers the use of voltages up to 36 kV. The metal-enclosed single busbar system is suitable not only for wall mounted installation, but also for free-standing installation with IAC classification AFLR to IEC62271-200. The switchgear can be operated in networks wit ...
LAB2 – NATIONAL LM267X VOLTAGE REGULATOR EE562: POWER ELECTRONICS COLORADO STATE UNIVERSITY
LAB2 – NATIONAL LM267X VOLTAGE REGULATOR EE562: POWER ELECTRONICS COLORADO STATE UNIVERSITY

... There are other prints that may be of interest such as Figures 2, 3 and 4 that show the top, bottom and silk screen of the printed circuit board, respectively. ...
JK2315611567
JK2315611567

... the circulating water system (heat rejection) and condensate/feed water system (regenerative heat and recycle of working fluid) and the plant electric system supporting these. These power generation processes must be operated so as to maintain energy and mass balance under changing conditions of loa ...
Importance of DC-DC Transformation in Grids of the Future
Importance of DC-DC Transformation in Grids of the Future

... 1. High MW ratings(> 1,000 MW) 2. Efficiency comparable to VSC bridges 3. Power flow proportional to ∆(V1/V2) without need for a power control signal 4. Ability to control flow as an AC transformer does through tap changes 5. Ability for bidirectional flow ...
Highly efficient digitally-controlled AC-DC Converter
Highly efficient digitally-controlled AC-DC Converter

< 1 ... 1133 1134 1135 1136 1137 1138 1139 1140 1141 ... 1315 >

Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report