• 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
Experiment 2 - Binus Repository
Experiment 2 - Binus Repository

Download T2100 Datasheet
Download T2100 Datasheet

... The T2100 calculates I x sin φ, representing the reactive power. If the reactive power becomes negative and exceeds the preset level (0.5-1.5 x IN), the pickup LED will indicate and the delay timer will be started. After the preset time (2-20 sec.) has expired, the output relay and LED will be activ ...
GIANT PERFORMANCE — PARK FLYER SIZE! PARK
GIANT PERFORMANCE — PARK FLYER SIZE! PARK

... LED signal: start/stop charge; high/low voltage input; reverse polarity (output) and loose/broken pack connection. The PolyCharge includes alligator clips on a 30” lead for input and a standard red 2-pin connector on output. QUALITY ...
Journal of Electronicsl and Communication Engineering (IOSR-JECE)
Journal of Electronicsl and Communication Engineering (IOSR-JECE)

EE33 sheetalpdf
EE33 sheetalpdf

... Space vector pulse width modulation (SVPWM) is the most popular and advanced technique in the application of variable speed drives. This technique is an alternative method for the determination of switching pulse width and their position. SVPWM has several advantages over the rest of the PWM techniq ...
LB11964FA - ON Semiconductor
LB11964FA - ON Semiconductor

... damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical ...
MP65 HIGH VOLTAGE DC FROM AC BY USING COCKCROFT
MP65 HIGH VOLTAGE DC FROM AC BY USING COCKCROFT

Multiple-output Switched Mode Power Supplies (SMPSs)
Multiple-output Switched Mode Power Supplies (SMPSs)

... the dc output voltages are regulated by controlling only one output voltage. Three different modes of operation of the front-end converter have been carried out in simulation to select the best possible operation especially based on device stresses. Finally, the best suited mode of operation for the ...
Lab02-GL Rev. 2 - geek @ EE @ NMT
Lab02-GL Rev. 2 - geek @ EE @ NMT

Professional Affiliations
Professional Affiliations

... sizing and delegate tasks to various project teams. Successfully rectified anti fuse FPGA issues. Implemented low cost ProASIC chip. Specify test plans and procedures to qualify passive, active and EMI filters used in power electronic applications. Developed a/c dynamometer based torque validation t ...
microwave solid state devices
microwave solid state devices

... Voltage and other transients must be avoided. Transients can occur if the DC voltage is put off. ...
starter
starter

... In rotor resistance starter the three terminals of the rotor winding are connected to a variable external resistances through slip rings. Full supply voltage is applied across the stator. Resistances are fully in the circuit at starting , so that the starting current is reduced. The external variabl ...
Two ways of looking at a transformer
Two ways of looking at a transformer

Journal of Environmental Science, Computer Science and
Journal of Environmental Science, Computer Science and

Simple-H User Manual
Simple-H User Manual

... Simple-H suitable for driving a wide variety of DC loads. The Simple-H features a current sense output from each half-bridge power chip. This output is a voltage proportional to the current flowing through the chip. The voltage output is approximately 0.075V per Ampere of current. When jumpered for ...
Electronic_Circuits_Unit-7
Electronic_Circuits_Unit-7

Bachmann Branchline DCC Onboard locomotive
Bachmann Branchline DCC Onboard locomotive

幻灯片 1
幻灯片 1

... 4.4.1 Brushless permanent magnet d.c. motors High performance, reliability and low maintenance. Current-carrying conductors are fixed and the magnet moves. The current to the stator coils is electronically switched, the switching being controlled by the position of the rotor so that there are alway ...
AP_Physics_B_-_Planck_s_Constant_lab
AP_Physics_B_-_Planck_s_Constant_lab

... Materials: Pasco Circuit board, voltmeter, ammeter, various LEDS In this lab we will be introduced to TWO new schematic symbols, This is called a variable resistance, also known as a dimmer switch. There are THREE connections, one on each end and one in the middle. This is called an LED, light emitt ...
Deck Machinery And Deck Cranes Like Anchor,Chain Locker,Life
Deck Machinery And Deck Cranes Like Anchor,Chain Locker,Life

... • Presently large no. of ships are fitted with the cranes which can be operational faster and spot the cargo easily. • Pole changing motors are being replaced with Ward Leonard system or Electro hydraulic system are popular. • Most crane makers incorporate a rope system for luffing and this is commo ...
DSP-Based Field-Oriented Step Motor Control - CACT
DSP-Based Field-Oriented Step Motor Control - CACT

... Step motors, as typically driven in industrial applications, can exhibit undesirable behavior such as stepping resonances and skipped steps. However, this is due to the drive method that is used, and is not due to the motor itself. The name "step motor" indicates how the motor is typically driven. S ...
Simple, Efficient, High- Brightness-LED Control
Simple, Efficient, High- Brightness-LED Control

... non-isolated applications. These include, for example, where a low-voltage isolated power supply already exists or where a class-2 fixture houses the LEDs in an inaccessible location, as is the case with traffic lights. This arrangement is similar to electronic ballasts for fluorescent or HID lamps, ...
Document
Document

A High Step-Up Converter with Voltage-Multiplier
A High Step-Up Converter with Voltage-Multiplier

Dahlander motor
Dahlander motor

... the influence of the cooling system must be taken into account. This is achieved by measuring the temperature directly at the point where it can harm the motor, i.e. within the winding. Winding insulations come in different classes and must not be allowed to overheat beyond the limit temperature spe ...
< 1 ... 1208 1209 1210 1211 1212 1213 1214 1215 1216 ... 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