• 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
Hall Effect Sensor PCB Test Plan
Hall Effect Sensor PCB Test Plan

... Testing: (See Arduino pinout diagram) ● For a guide to how to wire the board properly see the assembly plan associated with this part ● Note: Pins 3 and 4 on the INPUT block are not used! 1. Once the board is assembled properly, testing can begin 2. With the power supply turned off, connect the grou ...
Infranor Variable Speed Drive Implementation
Infranor Variable Speed Drive Implementation

... BEFORE YOU CALL ... ...
A Power Quality Gold Mine for Prominent Hill
A Power Quality Gold Mine for Prominent Hill

Product Data Sheet: Power Amplifier — Type 2706
Product Data Sheet: Power Amplifier — Type 2706

DN137 - New Comparators Feature Micropower Operation Under All Conditions
DN137 - New Comparators Feature Micropower Operation Under All Conditions

... New Comparators Feature Micropower Operation Under All Conditions – Design Note 137 Jim Williams Some micropower comparators have operating modes that allow excessive current drain. In particular, poorly designed devices can conduct large transient currents during switching. Such behavior causes dra ...
Job Title: High Voltage Electrician
Job Title: High Voltage Electrician

Download T3300 Datasheet
Download T3300 Datasheet

... BENEFITS ...
S11 Text.
S11 Text.

TechTopics No. 20 - Power factor correction capacitor
TechTopics No. 20 - Power factor correction capacitor

... the motor when the motor is switched off. At the instant that the motor is switched off, the motor and the driven load are at full speed. When the motor is switched off, the motor and load inertia will continue to drive the motor. If the magnetizing current required by the motor is available from th ...
Abstract - JPInfotech
Abstract - JPInfotech

... (PV) inverter for single- or three-phase grid-connected applications. The modular cascaded multilevel topology helps to improve the efficiency and flexibility of PV systems. To realize better utilization of PV modules and maximize the solar energy extraction, a distributed maximum power point tracki ...
Understanding the Data Sheet
Understanding the Data Sheet

Final Presentation
Final Presentation

Manual de programación
Manual de programación

Power Factor Correction Panel
Power Factor Correction Panel

... A special logic is written in the software for selection of required compensation. Dynamic Switching Modules: This module consists of an electronic card to see the Thyristor switch in a capacitor with minimum voltage so that the switching current is near zero. This prevents current and voltage trans ...
Brake By Wire - ja505 - electronic automotive
Brake By Wire - ja505 - electronic automotive

... The DC-link capacitors are used to filter DCBus voltage. Either mechanical or electronic relays may be used as disconnecting devices to switch off the electronic system from the vehicle battery bus. ...
Suntan® Su® DB101-THRU
Suntan® Su® DB101-THRU

... Rectified Current at TA=40℃ Peak Forward Surge Current, 8.3ms single half-sine-wave superimposed on rated load (JEDEC method) Maximum forward Voltage at 1.0A DC and ...
DTDG23YP
DTDG23YP

... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
PDF
PDF

... section. The aim is to highlight the limit at which the performance compared to conventional structures. multilevel inverters are no longer effective in So, these new technologies of semiconductor are reducing output voltage harmonics. more suited to high power applications and they enable the desig ...
Course Outline - UMT Admin Panel
Course Outline - UMT Admin Panel

... Resource Person ...
Voltage Source Inverter Drives and the use of Power
Voltage Source Inverter Drives and the use of Power

... the magnitude of voltage “ring-up” on the 3 phase voltage can be as high as 2 times the fundamental voltage value. In the case of this example the peak voltage is approximately 1100V, or 1.7 times the fundamental value. Also based on the values of source inductance, power factor correction Kvars and ...
AIRPORT 400 Hztrailing, PUR, halogen
AIRPORT 400 Hztrailing, PUR, halogen

Reference speed
Reference speed

... banks as energy storage devices for high and intense power demands, (iii) superconducting magnetic energy storage system (SMES), (iv) multiple input DC-DC power converter, (v) a three phase inverter-fed permanent magnet synchronous motor as a drive. In this system, It is used super capacitor banks a ...
80 Series V Industrial True-RMS Multimeter with Temperature
80 Series V Industrial True-RMS Multimeter with Temperature

... The new Fluke 87V has improved measurement functions, troubleshooting features, resolution and accuracy to solve more problems on motor drives, in plant automation, power distribution, and electromechanical equipment. The 87V operates very similar to the classic 87, but with more problem-solving pow ...
PowerPoint-presentation
PowerPoint-presentation

... termination and in motor bearings due to HF- harmonics. •While the symmetrical fundamental frequency current is cancelled and the zerosequence harmonics is summarized in the neutral wire the HF- harmonic current increased when the number of loads symmetrically increased in the three phases, and ther ...
Surge Protected Double Adaptor
Surge Protected Double Adaptor

... A power surge or spike can travel on active, neutral or earth and cause costly irreparable damage to your electrical equipment. The Arlec surge protected double adaptor is suitable for protecting valuable computer hardware, electrical equipment and domestic appliances in the home or commercial situa ...
< 1 ... 1161 1162 1163 1164 1165 1166 1167 1168 1169 ... 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