• Study Resource
  • Explore Categories
    • 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
Electricity Training Course
Electricity Training Course

...  Describe the effects that electrostatic discharge (ESD) can have on electronic components.  List the precautions that you should take to prevent ESD damage when servicing electronic components.  Demonstrate logical troubleshooting procedures when diagnosing printed circuit (PC) boards. Lesson 12 ...
Using BLDC motors in small home appliances
Using BLDC motors in small home appliances

TIP33C
TIP33C

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any ...
600 Watt SMB Transient Voltage Suppressor, 10 V Bidirectional
600 Watt SMB Transient Voltage Suppressor, 10 V Bidirectional

... In most applications, the transient suppressor device is placed in parallel with the equipment or component to be protected. In this situation, there is a time delay associated with the capacitance of the device and an overshoot condition associated with the inductance of the device and the inductan ...
X-Viper 650W 80+ Bronze Active PFC 14CM FDB Fan
X-Viper 650W 80+ Bronze Active PFC 14CM FDB Fan

... of its Ultra-silent X-Viper Series, which contains an ultra-silent "Fluid Dynamic Bearing" (FDB) fan as its major cooling component. FDB fans offer better airflow, allowing for better ventilation. The average FDB fan has a long lifespan (100K hrs.), whilst staying virtually silent for more than 2 ye ...
International Journal of Scientific Engineering and
International Journal of Scientific Engineering and

... STATCOM can supply the required reactive power under various operating conditions, to control the network voltage actively and thus, improve the steady state stability of the network. The STATCOM can be operated over its full output current range even at very low voltage level sand the maximum var g ...
USB1T11A Universal Serial Bus Transceiver
USB1T11A Universal Serial Bus Transceiver

... Note 2: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the Electrical Characteristic tables are not guaranteed at the absolute maximum rating. The “Recommend ...
Document
Document

... constant output voltage under dynamically changing load conditions. In successive approximation converters, the input current is compared to a series of switched trial currents. The comparison point is diode clamped but may deviate several hundred millivolts resulting in high frequency modulation of ...
Operating Modes Overview:
Operating Modes Overview:

NC7NZ17 TinyLogic UHS Triple Buffer with Schmitt Trigger Inputs
NC7NZ17 TinyLogic UHS Triple Buffer with Schmitt Trigger Inputs

... The NC7NZ17 is a triple buffer with Schmitt trigger inputs from Fairchild’s Ultra High Speed Series of TinyLogic in the US8 package. The device is fabricated with advanced CMOS technology to achieve ultra high speed with high output drive while maintaining low static power dissipation over a very b ...
Installation Instructions
Installation Instructions

... Maintains tubing current at 30 mA regardless of tube load or line voltage (if maximum specified tube load is not exceeded). High Line Power Factor – Reduces wiring costs. High Electrical Efficiency – saves energy. ½” Conduit Nipple for primary connection. Ground Connection to the sign by convenient ...
Voltage Dividers and Current Dividers
Voltage Dividers and Current Dividers

... Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. ...
Lecture series 11 - SmartGrid Privacy
Lecture series 11 - SmartGrid Privacy

Chapter07
Chapter07

RF-UNIT-V
RF-UNIT-V

... Cylindrical magnetron oscillator:- Crossed field tube devices(M-type) - DC electric field & DC magnetic field are perpendicular to each other - It is high power microwave oscillator Presentation: - Principle - operation ...
COMBOLIGHT New Construction Recessed Trimless - 12V MR16 - 4 Light Square
COMBOLIGHT New Construction Recessed Trimless - 12V MR16 - 4 Light Square

... meshplate assembly are all steel construction. Perforated meshplate allows for trimless installation in drywall/plaster ceilings by allowing the ceiling’s mudding compound to be applied right up to the edge of the fixture opening. Includes a beveled “knife-edge” lips to ensure a clean edge. Can acco ...
OPA336-EP SINGLE-SUPPLY MICRO-POWER CMOS OPERATIONAL AMPLIFIER MicroAmplifier™ SERIES FEATURES
OPA336-EP SINGLE-SUPPLY MICRO-POWER CMOS OPERATIONAL AMPLIFIER MicroAmplifier™ SERIES FEATURES

... remains unchanged throughout the full operating voltage range. Parameters that vary significantly with operating voltage are shown in the typical characteristics. The OPA336 is fully specified for operation from 2.3 V to 5.5 V; a single limit applies over the supply range. In addition, many paramete ...
BATTERIES FOR METERING APPLICATIONS
BATTERIES FOR METERING APPLICATIONS

... application. A good way to overcome it is with parallel connection of a small capacitor with high charge content, such as Tadiran’s HLC. PROVEN 20 YEARS BATTERY LIFE 3.6 V lithium thionyl chloride batteries are the preferred power source for stand alone metering applications. This is due to both the ...
Technology Training that works
Technology Training that works

... • Squared-Exponential Loads - With machines of this type, torque varies directly as the speed, and power as the square of speed. Such relationships are frequently found in positive-displacement pumps and mixer applications • Cubed-Exponential Loads - It is a characteristic of these machines that tor ...
Driving apparatus and method of three phase induction motor
Driving apparatus and method of three phase induction motor

... to a base of the transistor Q7. Resistance R12 is connected in series to a collector of the ?rst NPN transistor Q7. Abase of the second NPN transistor Q3 and a base of the ?rst PNP transistor Q4 are connected to each other and connected to a collector of transistor Q7. An emitter of the second NPN ...
1N5802US, 1N5804US, 1N5806US and URS
1N5802US, 1N5804US, 1N5806US and URS

... DESCRIPTION This “Ultrafast Recovery” rectifier diode series is military qualified and is ideal for high-reliability applications where a failure cannot be tolerated. The industry-recognized 2.5 amp rated rectifiers with working peak reverse voltages from 50 to 150 volts are hermetically sealed with ...
How to use a Digital Multimeter
How to use a Digital Multimeter

... •Voltage is broke up into 2 sections AC & DC Alternating Current (AC) is house voltage (110vac) Direct Current (DC) is battery voltage (12vdc) •On switched meters use one value higher than your expected value •Be very careful to not touch any other electronic components within the equipment and do n ...
ORCA-VII: An Autonomous Underwater Vehicle
ORCA-VII: An Autonomous Underwater Vehicle

An Improved UPQC Controller to Provide Grid-Voltage
An Improved UPQC Controller to Provide Grid-Voltage

40VIN /40VOUT 5A Constant-Current, Constant
40VIN /40VOUT 5A Constant-Current, Constant

< 1 ... 870 871 872 873 874 875 876 877 878 ... 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