• 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
Easy Calculation Yields Load Transient Response
Easy Calculation Yields Load Transient Response

FST3345 — 8-Bit Bus Switch Features Description 
FST3345 — 8-Bit Bus Switch Features Description 

... operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. ...
High Voltage Power Supplies
High Voltage Power Supplies

A O P
A O P

... a) Use two separate DC power supplies to generate v8 and VCC, and waveform generator (set to triangular signal) to generate v7. Set VCC = 4.5 V. What are the max and min values for v7 and v8 that you are allowed to set as an input of the OpAmp? (Q.5.a) b) Vary parameters of DC and triangular signals ...
TD class note 3
TD class note 3

... phase in construction, in contrast to the low voltage polyphase units used for industrial application. About 1960 control electrodes were added to silicon diodes, giving siliconcontrolled-rectifiers (SCRs or Thyristors). In 1961 the cross channel link between England and France was put into operatio ...
D2-01_34
D2-01_34

... • When the reactors are suddenly switched the system that’s in alert state will stay in alert state for some more time. • This time gap may be of order of 20s to 5mins. • Some control action should taken to bring the system back to normal state. • If not again blackout may occur or load shedding is ...
Lecture note from 21-26 Lecture 21 Problem Solving 1) A single
Lecture note from 21-26 Lecture 21 Problem Solving 1) A single

AP1533
AP1533

... Lead Free Finish/ RoHS Compliant (Note 1) ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676

O A
O A

... In the past years, there has been a great rise in the usage of non-linear loads in the power supply networks. The deformed voltages are caused due to current harmonics utilized by the non-linear loads flowing through the line impedance, and the major harmonics are extended to the remaining network. ...
READ THIS FIRST! - Millennia Media
READ THIS FIRST! - Millennia Media

... rotary switch. Switch gain is approximately 1.5 dB per step and is inter-channel matched to better than 0.08 dB at all settings. After a brief warm-up period, adjustment of this switch is virtually silent. Two illuminating pushbutton switches (Green and Amber) determine the gain "range" of the rotar ...
Product Datasheet
Product Datasheet

... Isoloop devices achieve their low power consumption from the manner by which they transmit data across the isolation barrier. By detecting the edge transitions of the input logic signal and converting these to narrow current pulses, a magnetic field is created around the GMR Wheatstone bridge. Depe ...
signalgenpro
signalgenpro

... predetermined level on the positive slope of the integrator's output voltage. This change of state cuts off the upper current supply to the integrator and switches on the current supply. The lower current supply provides a reverse current to the integrator so that its output voltage decreases linear ...
Chapter 5: Transmission Lines
Chapter 5: Transmission Lines

Maximum reachable torque, power and speed for five-phase
Maximum reachable torque, power and speed for five-phase

... 59043 - FRANCE (e-mail: {hussein.zahr,eric.semail}@ensam.eu) ...
IDEC Power Supplies Setting a New Standard
IDEC Power Supplies Setting a New Standard

Development of a microcontroller-based, photovoltaic maximum
Development of a microcontroller-based, photovoltaic maximum

... flow control. The 10-bit resolution is adequate for the present application. Also, it features three PWM outputs with program- ...
Live Performance Electrical Certificate
Live Performance Electrical Certificate

... is a hand-held device for determining the presence or absence of 50-600 volts AC in insulated wires, wall receptacles, fuses, junction boxes, switches and other voltage-carrying electrical PAGE 6 ...
Information Document – Voltage Control General Operating Practice ID #2010-007RS
Information Document – Voltage Control General Operating Practice ID #2010-007RS

... The AESO contact for requirements R3 and R4 is the AESO system controller. AESO system controller contact information can be obtained from the following source: (a) AESO First Call 1-888-588-AESO(2376). The AESO contact for requirements R5 and R6 is [email protected]. 7.2 Explanations r ...
Operation manual for BLHeli Atmel Rev13.x
Operation manual for BLHeli Atmel Rev13.x

... Note that governor “arm” mode is not supported for PPM input signal. In the governor “setup” mode the governor target is stored in the ESC. It’s default value is 70% (about 4800rpm on mCPX with a 6pole motor and an 8T pinion). The value can be changed with configuration software. In governor “arm” a ...
Electrical Stimulation - Therapeutic Modalities
Electrical Stimulation - Therapeutic Modalities

...  Intense or prolonged stimulation may result in muscle spasm and/or muscle soreness.  Intake of 200 mg or more of caffeine may reduce the effectiveness of TENS  Narcotics decrease the effectiveness of TENS ...
Interconnection Request and Generating Facility
Interconnection Request and Generating Facility

... rectifiers. The regulator power source is independent of the generator terminal voltage and current (not bus-fed). (5) Rotating AC Alternator Exciter with controlled (thyristor) rectifiers. The regulator power source is fed from the exciter output voltage. (6) Rotating AC Alternator Exciter with con ...
EEE8054 Power Transformers – Taster Material Application of
EEE8054 Power Transformers – Taster Material Application of

... radiator fans to assist cooling of the windings and cores. They are usually fitted with on-load tap changers (OLTCs), but some networks at 400 kV and 275 kV are linked by transformers without regulating windings. In underground substations where the risk of fire is high, an SF6 gas insulated design ...
Presentation of 5th, 3rd, 2nd and first order machine
Presentation of 5th, 3rd, 2nd and first order machine

AC_Circuits1
AC_Circuits1

< 1 ... 683 684 685 686 687 688 689 690 691 ... 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