• 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
UPS-901
UPS-901

... During normal operation, the UPS-901 shall receive a trickle charge from the associated TRX-401 unit through a balancing circuit to maintain an optimal float charge on the battery. A green LED shall indicate the presence of DC voltage in and a red LED shall indicate normal charging. In the event of ...
DAY_5_~1
DAY_5_~1

dual regulated power supply
dual regulated power supply

... DUAL REGULATED POWER SUPPLY INTRODUCTION: The complete range of power supplies is very broad, and could be considered to include all forms of energy conversion from one form into another. Conventionally though, the term is usually confined to electrical or mechanical energy supplies. Constraints tha ...
A Simple Fuzzy Excitation Control System for Synchronous Generator
A Simple Fuzzy Excitation Control System for Synchronous Generator

Editorial - Korba - World Automation Congress
Editorial - Korba - World Automation Congress

POWER QUALITY -- An Indian Perspective
POWER QUALITY -- An Indian Perspective

Paper Template
Paper Template

... Therefore, the analysis of dynamic stability and controller's design of these large interconnected under study systems becomes difficult [2]. ...
Design Review - ECE Senior Design
Design Review - ECE Senior Design

... Time line ...
Syllabus (8th Semester)
Syllabus (8th Semester)

... Real power balance and its effect on system frequency, load frequency control of single area system – Models of speed governing system, turbine and generator load, steady state analysis and dynamic response, proportional plus integral control, two area load frequency control, economic dispatch contr ...
Power Supply Glossary Term For AC, DC, Voltage, Current And
Power Supply Glossary Term For AC, DC, Voltage, Current And

Control Strategy for Power Flow Management in a PV System
Control Strategy for Power Flow Management in a PV System

DPS50-M - Farnell
DPS50-M - Farnell

... While every precaution has been taken to ensure accuracy and completeness in this literature, Emerson Network Power assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions. ...
EI010 502 Industrial Electronics and Applications
EI010 502 Industrial Electronics and Applications

Rack mount Power supply with 90
Rack mount Power supply with 90

... Outputs ...
section 263533 - power factor correction
section 263533 - power factor correction

Document
Document

Inteli-PowerTM
Inteli-PowerTM

... in 40, 60, and 80 Amp models. Each produces an extremely well-regulated 14.4 Volt output. Electronic current limiting automatically reduces the output voltage after maximum power capacity is reached. Unlike some competitive products, the output does not shut down abruptly when the current rating is ...
Power Grid in High School Physics
Power Grid in High School Physics

ESX10-T Pres. - Weidmuller B2B Portal
ESX10-T Pres. - Weidmuller B2B Portal

offline soft-switched led driver based on an integrated
offline soft-switched led driver based on an integrated

98.6 - Masters in Solar
98.6 - Masters in Solar

Today’s Topics - Department of Electrical Engineering
Today’s Topics - Department of Electrical Engineering

... Resistive load ...
Motor-Generator Group, no excitation required (permanent magnets) EGMG24 www.edibon.com
Motor-Generator Group, no excitation required (permanent magnets) EGMG24 www.edibon.com

... Measurements of current, voltage, power, power factor, frequency, energy, TRMS measurement of distorted waves (voltages,currents) for each phase and average. Ranges: Voltage: VL-N: 185 V to 460V. VL-L: 320 V to 800V. Current: Phase current: 0.03 to 6A. Neutral current: 0.09 to 6A. Frequency: 48 to 6 ...
Hybrid Reactive Power Compensators
Hybrid Reactive Power Compensators

Calculating the Efficiency of the Solar Cells
Calculating the Efficiency of the Solar Cells

... provided, essentially limited by the movement of the electrons across the junction potential and through the doped semiconductor to the external contact. This will be the maximum current that the solar cell could provide in a particular light source, the short circuit current, Isc. Conversely, if th ...
< 1 ... 230 231 232 233 234 235 236 237 238 ... 250 >

Power factor



In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of -1 to 1. A power factor of less than one means that the voltage and current waveforms are not in phase, reducing the instantaneous product of the two waveforms (V x I). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power will be greater than the real power. A negative power factor occurs when the device (which is normally the load) generates power, which then flows back towards the source, which is normally considered the generator.In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor.Linear loads with low power factor (such as induction motors) can be corrected with a passive network of capacitors or inductors. Non-linear loads, such as rectifiers, distort the current drawn from the system. In such cases, active or passive power factor correction may be used to counteract the distortion and raise the power factor. The devices for correction of the power factor may be at a central substation, spread out over a distribution system, or built into power-consuming equipment.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report