• 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
Dithering Digital Ripple Correlation Control for Maximum Power
Dithering Digital Ripple Correlation Control for Maximum Power

...  Window is shifted as DC signal changes.  MPP application allows this technique ...
Flatpack 1500
Flatpack 1500

LM124/224/324/324A/ SA534/LM2902 Low power quad
LM124/224/324/324A/ SA534/LM2902 Low power quad

... 1. VO ≈ 1.4 VDC, RS = 0 Ω with VCC from 5 V to 30 V and over full input common-mode range (0 VDC+ to VCC –1.5 V). 2. The direction of the input current is out of the IC due to the PNP input stage. This current is essentially constant, independent of the state of the output so no loading change exist ...
HMC361S8G / 361S8GE
HMC361S8G / 361S8GE

... Wide Bandwidth ...
Digistart CS User Guide
Digistart CS User Guide

... and of its products throughout their life cycle. To this end, we operate an Environmental Management System (EMS) which is certified to the International Standard ISO 14001. Further information on the EMS, our Environment Policy and other relevant information is available on request. When the produc ...
Model : 37HA-M
Model : 37HA-M

... Note: Exposure to absolute maximum rating conditions for extended periods may affect reliability. ...
ELECTRONIC CONTROL SYSTEMS
ELECTRONIC CONTROL SYSTEMS

... These control instruments series “S” are among the most modern and complete available today on the market. They have been built to command membrane solenoids on dust removal filters. A large back lighted liquid crystal display clearly shows cleaning system status. It has a fast-flow setting menu wit ...
Design and Implementation of a Stand-Alone Remote Terminal Unit Prachi Sharma
Design and Implementation of a Stand-Alone Remote Terminal Unit Prachi Sharma

... Potential transformers (PT) (also called voltage transformers (VT) are a parallel connected type of instrument transformer. They are designed to present negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected meter ...
Circuit Simulator User Manual
Circuit Simulator User Manual

Precor Error Codes
Precor Error Codes

... 5. Even though unlikely, the A.C. line frequency could actually be out of acceptable limits. This is more likely to occur in countries where A.C. power systems may not be well developed and controlled. There may be little that can be done about this condition. If the source frequency can not be corr ...
Aalborg Universitet FACTS Devices for Large Wind Power Plants Nath
Aalborg Universitet FACTS Devices for Large Wind Power Plants Nath

MDC Foil Heater Solutions Data Sheet
MDC Foil Heater Solutions Data Sheet

... even  higher  power  densi@es  are  achievable.   Our  engineers  can  design  different  sec@ons  of  the  flexible  heaters  with  different  waI  densi@es  in  order  to  compensate   for  edge  loss  on  the  outside  perimeter  of  a ...
Aalborg Universitet Agent-based Distributed Unbalance Compensation for Optimal Power Quality in
Aalborg Universitet Agent-based Distributed Unbalance Compensation for Optimal Power Quality in

Press Release
Press Release

... New ITS2 is world's first intelligent monitoring unit with built-in temperature sensor Zurich, Switzerland, April 27, 2015 – ABB, the leading power and automation technology group, has launched the SlimLine XR ITS2, the world’s first low-voltage switch fuse disconnector with integrated temperature m ...
Check System
Check System

... Note: This solution will cause a ‘Bridge Comm Error’ on the controller. This expected error indicates that the pump is not communicating while powered down; this error will clear when pump’s power is restored. Please inform customer prior to employing this solution. ...
UNIVERSITY OF ALBERTA OVERVIEW OF SUBMURSA
UNIVERSITY OF ALBERTA OVERVIEW OF SUBMURSA

... bypassing of certain systems in the event of system SubmURSA utilizes four Sabertooth dual 12A or circuit board malfunctions or failures. motorcontrollers and one dual 10A motor controller. The 12A units are used to power the pumps while A. Main Board the single 10A unit controls the two thrusters. ...
XSL Xenus - Copley Controls
XSL Xenus - Copley Controls

... multiple drives can be controlled from high-level languages such as Visual Basic or C++. CANopen operation supports Profile Position, Profile Velocity, Profile Torque and Homing modes. In addition to these operating modes, all of the drive configuration parameters are available in CAN mode offering ...
kobra cyclone hs + compactor c-500
kobra cyclone hs + compactor c-500

Aalborg Universitet Secondary Control for Reactive Power Sharing in Droop-Controlled Islanded MicroGrids
Aalborg Universitet Secondary Control for Reactive Power Sharing in Droop-Controlled Islanded MicroGrids

Transformer Basics
Transformer Basics

... – “backflashes” - rise in the 500-2000KV per u-second range and 10-20 u-sec tail (cfo of line - positive polarity waves) – Direct strokes to phase wires (cfo due to negative polarity waves) slightly slower rise and longer tail than backflash BIL: Basic Impulse Level is the electrical strength of ins ...
Quick Reference - Schneider Electric Motion USA
Quick Reference - Schneider Electric Motion USA

... technicians only. You must have detailed information to be able to carry out this work. This information can be found in the user manuals. • Unexpected dangers may be encountered when working with this product! • Incorrect use may destroy this product and connected components! The user manuals are n ...
Giga-tronics white paper - RF/Microwave instrumentation amplifiers
Giga-tronics white paper - RF/Microwave instrumentation amplifiers

... two dB gain compression point and can be operated at or near their rated one dB compression level to achieve linear performance. This means, for example, that a solid-state amplifier rated at 10 W P1dB will offer equal or better linear performance compared to a TWTA rated at 40 or more watts of satu ...
EE 4429 Practice 3
EE 4429 Practice 3

... (1) When Vout = VOH, Vin = - VOH (R1/R2) = VTL (2) When Vout = VOL, Vin = - VOL (R1/R2) = VTH For this circuit, we obtain VH = VTH – VTL = (R1/R2)(VOH – VOL). We also get VM = (1/2)( VTH + VTL) = -(1/2) (R1/R2)(VOH – VOL). We also know that VOH = +VS, the positive power supply voltage, and that VOL ...
WLCP Cuts - Douglas Lighting Controls
WLCP Cuts - Douglas Lighting Controls

... 1) Mount the empty enclosure onto the wall and pull wires. It is recommended that all (or most) of the wires be pulled prior to installing the interior. This will prevent component damage from the wire pulling operation. 2) Relay line voltage terminals are sized for a maximum of 12AWG wire. For low ...
experiment 1 - UniMAP Portal
experiment 1 - UniMAP Portal

... Substations are integral parts of a power system and form important link between the generating stations, transmission systems, distribution systems and the load points such as Figure 1. The substation’s function is to support the system, providing points of delivery in the transmission system. Subs ...
< 1 ... 526 527 528 529 530 531 532 533 534 ... 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