• 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
Transformer Impedance
Transformer Impedance

Electrochemical Cells
Electrochemical Cells

... We want to create an electrochemical cell using aluminum (Al|Al3+ ) and lead (Pb|Pb2+) halfcells. Our tasks: a) Determine the two half-reactions involved, and which reaction will undergo oxidation and which one will be reduced. b) Give the cell notation c) Determine the voltage of the cell. d) Diagr ...
LB11964FA - ON Semiconductor
LB11964FA - ON Semiconductor

3-Phase Power Factor Correction, Using Vienna
3-Phase Power Factor Correction, Using Vienna

... While applications for 1-Phase PFC are now familiar and prevalent, the same is not the case with 3-Phase PFC. Many equipments using kilowatts of power from 3-Phase mains should be candidates of 3-Phase power factor correction, because several advantages ensue, both to the user of the equipment and t ...
Capacitor Self
Capacitor Self

Core Balance Specify Document
Core Balance Specify Document

... As you can see the performance specified is at 10 or 20 times rated current, this does not ensure that the Current Transformer will generate sufficient output to operate a typical core balance protection primary sensitivity of typical 250mA or 500mA. This is due to the fact that typical GOSS materia ...
Electronic Circuits
Electronic Circuits

... another element (anode). Internal structures called “grids” will have a voltage applied to assist in accelerating the electrons from the cathode to the anode. Construction: Most tubes have a glass envelope that contains the elements made of throated tungsten. The glass tube will have pins protruding ...
Simple, Efficient, High- Brightness-LED Control
Simple, Efficient, High- Brightness-LED Control

Varactor Diode for AFC, VCO
Varactor Diode for AFC, VCO

... products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, includi ...
YU191B Datasheet
YU191B Datasheet

... POWER TRIODE YU-191B ...
Ch 16.1 Electric Charge and Static Electricity
Ch 16.1 Electric Charge and Static Electricity

... (push = voltage/volts) – You can measure how fast it is flowing (flow = amperage/amps) – There are things that slow water down (slowing = resistance/ohms) • Conductors have low resistance and allow flow, insulators have high resistance and block flow. Semiconductors kinda allow flow. Superconductors ...
Electric Currents
Electric Currents

... •  A battery is (ideally) a source of constant potential difference. •  Electric current is the rate of flow of electric charge. •  Charge can only flow around a completed, closed circuit. •  Conventional current is in the direction that positive charge would flow. •  Electrons drift along with the ...
Document
Document

Abstract - PG Embedded systems
Abstract - PG Embedded systems

Voltage Transducer LV 100/SP47 I = 10 mA V = 100..2500 V
Voltage Transducer LV 100/SP47 I = 10 mA V = 100..2500 V

Sensor less Control of BLDC Motor Drive for an
Sensor less Control of BLDC Motor Drive for an

Typical Applications - All
Typical Applications - All

Transmission Line Proposals & Constraints 10 September 2001
Transmission Line Proposals & Constraints 10 September 2001

200 W, Single Output Power Supply
200 W, Single Output Power Supply

Parallel Circuits - Mr. Britton / FHS Physics
Parallel Circuits - Mr. Britton / FHS Physics

... if one light turns off, the others stay on if you turn off one light, all the lights turn off has more than one path for the electrical current to flow the devices have the same current the voltage drop across each device is the same ...
Resistance - BYU Physics and Astronomy
Resistance - BYU Physics and Astronomy

... Batteries as circuit elements • A battery or other constant-voltage device (e.g. power suppy) is usually the energy source in a direct-current (DC) circuit. • The positive terminal of the battery has higher potential than the negative terminal. • The electromotive force (emf, ) of a battery is the ...
IOSR Journal of Electrical and Electronics Engineering PP 63-66 www.iosrjournals.org
IOSR Journal of Electrical and Electronics Engineering PP 63-66 www.iosrjournals.org

Electrical Injury
Electrical Injury

... 2. Class of Equipment - Class 1: third pin of plug (direct earthing) + metal casing -> this circuit should be low resistance and if live wire comes in contact with an accessible part should be linked to a fuse that breaks the circuit - Class 2: double or reinforced insulation (non-conductive plastic ...
DCMB needs good partners : "The special Low flux
DCMB needs good partners : "The special Low flux

... assemble, a single ended amplifier, with my transformer, can become a real challenger in terms of cost of the parts and labour, not mentioning the nobler sound. I have designed and tested so far several dozens of different types Self-offsetting Lo-flux OPTs ( the novel type described above) , built ...
university of california - Berkeley Robotics and Intelligent Machines
university of california - Berkeley Robotics and Intelligent Machines

< 1 ... 402 403 404 405 406 407 408 409 410 ... 449 >

Mercury-arc valve



A mercury-arc valve or mercury-vapor rectifier or (UK) mercury-arc rectifier is a type of electrical rectifier used for converting high-voltage or high-current alternating current (AC) into direct current (DC). It is a type of cold cathode gas-filled tube, but is unusual in that the cathode, instead of being solid, is made from a pool of liquid mercury and is therefore self-restoring. As a result, mercury-arc valves were much more rugged, long-lasting and could carry much higher currents than most other types of gas discharge tube.Invented in 1902 by Peter Cooper Hewitt, mercury-arc rectifiers were used to provide power for industrial motors, electric railways, streetcars, and electric locomotives, as well as for radio transmitters and for high-voltage direct current (HVDC) power transmission. They were the primary method of high power rectification before the advent of semiconductor rectifiers, such as diodes, thyristors and gate turn-off thyristors (GTOs) in the 1970s.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report