• 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
Service manual (VGD 700-3K)
Service manual (VGD 700-3K)

... The block diagram in figure 3, shows the UPS at normal operation from left to right. When a protection circuit is triggered or a fault condition occurs, the output supply is transferred immediately from inverter to AC mains by a bypass relay. The operation principle will be explained in later sectio ...
General Description Features
General Description Features

... The MAX5175/MAX5177 low-power, serial, voltage-output, 12-bit digital-to-analog converters (DACs) feature a precision output amplifier in a space-saving 16-pin QSOP package. The MAX5175 operates from a single +5V supply, and the MAX5177 operates from a single +3V supply. The output amplifier’s inver ...
MAX1513/MAX1514 TFT-LCD Power-Supply Controllers General Description Features
MAX1513/MAX1514 TFT-LCD Power-Supply Controllers General Description Features

... high-performance step-up regulator controller, three linear-regulator controllers, and an adjustable delay block for startup sequencing. The MAX1513 includes an additional linear-regulator controller and a high-performance buffer amplifier. The MAX1513/MAX1514 can operate from 2.7V to 5.5V input sup ...
Subthreshold Logical Effort: A Systematic Framework for Optimal
Subthreshold Logical Effort: A Systematic Framework for Optimal

... According to these results, we expect to achieve a higher drivecurrent through the two-transistor stack when the lower device is larger than the upper transistor by a factor of α . For example, with a WU of 1µm the optimal WL is 1.189µm at Vdd = 0.3V, and 1.122µm at Vdd = 0.2V. As shown in equation ...
Distributed Generation Interconnection
Distributed Generation Interconnection

... mechanical interlocks are required between the two source contacts. This is required to ensure that one of the contacts is always open and the Generation System is never operated in parallel with Minnesota Power. If the mechanical interlock is not present, the protection requirements are as if the s ...
Fixed-Frequency 99% Duty Cycle Peak Current
Fixed-Frequency 99% Duty Cycle Peak Current

... The TPS51220A is a dual synchronous buck regulator controller with two LDOs. It is optimized for 5-V/3.3-V system controller, enabling designers to cost effectively complete 2-cell to 4-cell notebook system power supply. The TPS51220A supports high efficiency, fast transient response, and 99% duty c ...
Lecture 10 - UniMAP Portal
Lecture 10 - UniMAP Portal

... “CUTOFF” region: VG < VT ...
Guide for the Design and Production of LV Power Factor Correction
Guide for the Design and Production of LV Power Factor Correction

Document
Document

... many applications. Further commissioning tweaks are a snap using the IR remote control for setup[1]. Energy Efficiency Inputs for occupancy sensors and photocells[2] drive potential for significant energy savings. Lights will turn off automatically when the room is vacated, and rooms with adequate d ...
Electronics in Motion and Conversion May 2014
Electronics in Motion and Conversion May 2014

Reliable and Durable: What makes HP Point of Sale Systems “Retail
Reliable and Durable: What makes HP Point of Sale Systems “Retail

... comfortable input. The system weight along with base body construction is designed to ensure chassis stability and provide excellent user experience. ...
2 Electrical Systems
2 Electrical Systems

... Requirements (delete this section after you have read and understood it): Read the document “How to pass ESF&FMEA” which is available at http://www.formulastudent.de/uploads/media/FSE2011_How_to_pass_ESF_FMEA_01.pdf Maximum number of pages for the complete ESF is 100 pages! Links to video or audio d ...
to the HiSat-15 Instruction Manual
to the HiSat-15 Instruction Manual

... new equipment. Pay special attention to the warnings and cautions both in this manual and on the equipment itself. NOTICE - This product is designed for use by professionals trained in its use and application in and around high voltage electrical equipment. If you are not trained in the work methods ...
LME49610 数据资料 dataSheet 下载
LME49610 数据资料 dataSheet 下载

... sinking the LME49610 is easily accomplished by soldering the package’s tab to a copper plane on the PCB. (Note: The tab on the LME49610’s TO–263 package is electrically connected to VEE.) Through the mechanisms of convection, heat conducts from the LME49610 in all directions. A large percentage move ...
HGTG30N60A4 600V SMPS IGBT Features
HGTG30N60A4 600V SMPS IGBT Features

... Deadtime (the denominator) has been arbitrarily held to 10% of the on-state time for a 50% duty factor. Other definitions are possible. td(OFF)I and td(ON)I are defined in Figure 21. Device turn-off delay can establish an additional frequency limiting condition for an application other than TJM. ...
- aes journals
- aes journals

... In this paper we propose a simulation model for an entire BLDCM drive and its actual implementation. In this model the trapezoidal back EMF waveforms are modeled as a function of rotor position, so that position can be actively calculated according to the operating speeds. Moreover, the switching fu ...
MAX5223 Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8
MAX5223 Low-Power, Dual, 8-Bit, Voltage Output Serial DAC in 8

... to receive data from the serial data input. Data is clocked into the shift register on every rising edge of the serial clock signal (SCLK). The clock frequency can be as high as 25MHz. Data is sent by the most significant bit (MSB) first and can be transmitted in one 16-bit –—– word. The write cycle ...
AP2161/ AP2171 Description Pin Assignments
AP2161/ AP2171 Description Pin Assignments

... Three possible overload conditions can occur. In the first condition, the output has been shorted to GND before the device is enabled or before VIN has been applied. The AP2161/AP2171 senses the short circuit and immediately clamps output current to a certain safe level namely ILIMIT. In the second ...
ON LINE UPS 6-10kVA USER MANUAL
ON LINE UPS 6-10kVA USER MANUAL

... This On-Line-Series is an uninterruptible power supply incorporating doubleconverter technology. It provides perfect protection specifically for computers, communication equipment and so on. The double-converter principle eliminates all mains power disturbances. A rectifier converts the alternating ...
10121017, 10121032, 10121064, 10121034
10121017, 10121032, 10121064, 10121034

... 1.3 History of Accident due to fire in Bangladesh .....................................................................17 1.4 What are robots ....................................................................................................................18 1.5 Importance of unmanned fire extingu ...
Click here
Click here

... FIGURE 20-5 A cutaway of a General Motors CS-130D generator showing the rotor and cooling fans that are used to force air through the unit to remove the heat created when it is charging the battery and supplying electrical power for the vehicle. ...
Emission Limits for Customer Facilities Connected - Hydro
Emission Limits for Customer Facilities Connected - Hydro

... disturbances caused by equipment in customer facilities connected to, or to be connected to, the Hydro-Québec transmission system. These limits apply to harmonic emissions, load or current imbalances, rapid voltage changes and flicker at the interface between a customer facility and the transmission ...
LT6604-5
LT6604-5

... Note 8: Input pins (+IN, –IN, VOCM and VMID) are protected by steering diodes to either supply. If the inputs should exceed either supply voltage, the input current should be limited to less than 10mA. In addition, the inputs +IN, –IN are protected by a pair of back-to-back diodes. If the differenti ...
Power Reduction Techniques for LDPC Decoders
Power Reduction Techniques for LDPC Decoders

SKY77161 数据资料DataSheet下载
SKY77161 数据资料DataSheet下载

... active circuitry in the module such as on-board bias circuit and input and interstage matching circuits. Output match is realized off-chip within the module package to optimize efficiency and power performance into a 50 Ω load. This device is manufactured with Skyworks’ GaAs Heterojunction Bipolar T ...
< 1 ... 169 170 171 172 173 174 175 176 177 ... 1368 >

History of electric power transmission



The history of the technology of moving electricity far from where it was generated dates from the late 19th century. This includes movement of electricity in bulk (formally referred to as ""transmission""), and the delivery of electricity (""distribution"") to individual customers. The distinction between the two terms did not exist in early years and were used interchangeably.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report