• 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
Series and Parallel Circuits
Series and Parallel Circuits

... Voltage Divider: Series circuits are thought of as voltage dividers. They can produce a voltage of desired magnitude. ...
Inductors - SFA Physics and Astronomy
Inductors - SFA Physics and Astronomy

... E  VL1  VL2  VL3 The analysis is difficult in a dc circuit since the voltage drains to zero, but the result is… ...
Massachusetts  Institute  of  Technology
Massachusetts Institute of Technology

Instantaneous Current-Sharing Control Strategy for Parallel
Instantaneous Current-Sharing Control Strategy for Parallel

Improvement of Voltage Profile in A Radial Distribution
Improvement of Voltage Profile in A Radial Distribution

High-Voltage Gain Boost Converter Based on Three
High-Voltage Gain Boost Converter Based on Three

... cell for a large voltage step-up, high efficiency, and reduced voltage stress on switches due to the transformer. Also ZVS soft switching is naturally achieved a lowing high frequency operation and low commutation losses. This paper presents a novel high-voltage gain boost converter topology based o ...
Introduction to Class
Introduction to Class

... Poor Stability Permeates System ...
WEG launches new cost-effective variable speed drive with
WEG launches new cost-effective variable speed drive with

... power WEG, a global leading supplier of drive technology, has more than doubled the maximum power of its air-cooled MVW01 medium voltage variable speed drives - from 6.5 MW to 16 MW for voltages from 2.3 kV to 4.16 kV - to meet the needs of medium voltage three-phase induction and synchronous motors ...
TruePower Trio - MA
TruePower Trio - MA

... • Accurate power rating allows TruePower Trio to deliver its full rated power, 24 hours a day rated at 50ºC • Up to 85% efficiency • 120mm low noise cooling fan • Fan Only power connectors allow TruePower Trio to control case fan speeds, reducing total system noise • Dedicated outputs for stable out ...
Unit 4 Voltage in Electrical Systems
Unit 4 Voltage in Electrical Systems

... Voltage acts like a force  Unlike charges attract  Like charges repel  There are three common ways of creating a voltage difference ...
show as file
show as file

... dynamic control behaviour of the devices, a Heinzinger power unit can be easily employed under a wide range of load conditions. A multiplicity of digital and analogue interfaces also represent standard options, which have been currently expanded with further interesting solutions. The Heinzinger ele ...
Pulse operation of film capacitors
Pulse operation of film capacitors

... Pulse operation of film capacitors When capacitors are subjected to waveforms that contain fast rising (or falling) pulses care needs to be taken to prevent the capacitors from becoming damaged from these waveforms. The peak currents generated from these waveforms place a large amount of stress on t ...
Lab-3
Lab-3

... Phase shift is a measurement to determine how much output signal has been shifted in phase related to the input voltage. Phase shift is As ω goes 0, phase shift goes 0° (i.e no phase shift). When ω goes to infinity phase shift goes to -90°. Phase shift also can be written in terms of cut off frequen ...
SCR Timing and the Zero Crossing
SCR Timing and the Zero Crossing

... surge current that can reach up to 20x the average current of the system. This type of current causes abnormal tripping of circuit breakers and unwanted system stress. The proper method of switching taps is to use a microprocessor control and SCRs. SCRs do not have the long switch time that contacto ...
Error free Sound Activated DOOR OPEN (Triggers
Error free Sound Activated DOOR OPEN (Triggers

... packages and several fixed output voltages, making it useful in a wide range of applications. These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shut-down and safe ...
Power Sensor Theory - Herbert Dingfelder – DL5NEG
Power Sensor Theory - Herbert Dingfelder – DL5NEG

... The disadvantage is that the precision is not very high, especially when we measure at different frequencies. Like every amplifier, the log amp changes its behavior over frequencies. Of course the manufacturers of integrated log amps try to eliminate this effect as much as possible. For some time no ...
Conceptual Questions Chap. 13
Conceptual Questions Chap. 13

... portion of the circuit it parallels. Use a lamp with a frayed cord as an example. A short circuit in a lamp cord means the 2 conducting wires touch each other, opening a low-resistance branch in parallel with the lamp. Then the lamp goes out immediately. However, a very large current will be produce ...
WLA- Load balancing unit - PT Sinar Elektrindo Perkasa
WLA- Load balancing unit - PT Sinar Elektrindo Perkasa

Slajd 1
Slajd 1

Generator dc - schoolphysics
Generator dc - schoolphysics

... series or parallel, the current required for the field coils being produced by the generator itself. There is nearly always some residual magnetism in the core of the armature to aid the starting of such a generator. Student investigation The foIIowing experiment is designed to investigate the varia ...
1 Introduction
1 Introduction

Abstract - 1000kv technologies
Abstract - 1000kv technologies

... project, power supply of 5V and 12V are required. In order to obtain these voltage levels, 7805 and 7812 voltage regulators are to be used. The first number 78 represents positive supply and the numbers 05, 12 represent the required output voltage levels. The L78xx series of threeterminal positive r ...
FAKULTI KEJURUTERAAN ELEKTRIK, UNIVERSITI TEKNOLOGI
FAKULTI KEJURUTERAAN ELEKTRIK, UNIVERSITI TEKNOLOGI

BUSBARS and CAPACITORS BANK DESIGN
BUSBARS and CAPACITORS BANK DESIGN

... „ bigger cans => 1 single cap for a whole stack is possible „ higher current, reliability „ no capacitors in series ==> no sharing resistor „ Non polarised „ Drawback : „ for a same volume : Celect >> Cpoly „ Usually, higher prices ...
Handout - cyphynets
Handout - cyphynets

... 4. What is the DC offset of HA17741 and UA741CN? How can you remove it? 5. What will be the shape of if a triangular generator signal is fed at the input of circuit in Fig. 8 of peak amplitude 1 V and the reference voltage is 0.5 V? 6. Refer to experiment 9 (pages 67‐73) [1]. In step 12, give the ju ...
< 1 ... 1183 1184 1185 1186 1187 1188 1189 1190 1191 ... 1265 >

Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report