• 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
The High Efficiency Renewable PV Inverter Topology
The High Efficiency Renewable PV Inverter Topology

doc - University of Iowa Physics
doc - University of Iowa Physics

... Limpaecher and MacKenzie1,2 made a significant advance in the confinement of filament-produced plasmas by placing a surface magnetic field at the plasma boundary. They showed that a permanent magnet produced multidipole field enhanced plasma density by as much as two orders of magnitude and equally ...
Neon Application Information
Neon Application Information

... millions of such occurrences at a given instant. 2. The atom can have an electron knocked off, in which case the atom becomes a positively charged ion. This ion is attracted by the negative electrode (cathode) and accelerated towards it. On colliding with the cathode, the ion causes material to be r ...
PDF
PDF

... The combination of ADALINE with LCL filter is also introduced for efficient reference current generations. Filter inductance is replaced by a third order LCL filter for better switching ripple attenuation can be achieved during operation [7]. To generate reference current fuzzy logic are also introd ...
Question: How do I apply an instrument`s accuracy specification?
Question: How do I apply an instrument`s accuracy specification?

1) Voltage, current, AC, DC, regulated, unregulated - what do
1) Voltage, current, AC, DC, regulated, unregulated - what do

... - how much current it draws? The answer to the first three questions is in most cases 9V DC with centre negative DC-plug. If that is the case for all your pedals you are lucky. You just have to add the current figures for all your pedals and then you know how much power you need. Make sure when buyi ...
Power Modifications for the ST-150-BJ-1
Power Modifications for the ST-150-BJ-1

FAN2012 1.5 A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator
FAN2012 1.5 A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator

... (2600 mA). Typical start-up time for a 40 µF output capacitor and a load current of 1500 mA is 800 µs. ...
Performance Comparison of Overhead Line Under Various
Performance Comparison of Overhead Line Under Various

MPPT with PFC
MPPT with PFC

... Figure 2 – (a) Conventional scheme of a small wind turbine generator for battery charging and (b) Small wind turbine with DC-DC converter for maximization of power production. Power electronics have an important role for controlling electrical characteristics of wind turbines. For SWTG in battery ch ...
Curva de Potência de Turbinas Eólicas
Curva de Potência de Turbinas Eólicas

Rf power circuits: CERN perspective
Rf power circuits: CERN perspective

DIRIS A40 Power Meter - 48250A40, 48551A40
DIRIS A40 Power Meter - 48250A40, 48551A40

... Storing average values according to synchronisation signal for 3U, 3V and F ...
the Medium Voltage Controllable Fuse Brochure
the Medium Voltage Controllable Fuse Brochure

... Comparing the installation costs of the MVCF to a conventional MV Circuit Breaker will clarify the huge difference in site-work, logistics of equipment removal and replacement, liability of sub-contractors, overall man-hours and total downtime. The installed cost of the MVCF can be as little as 20% ...
Lecture 41: Introduction to inverters
Lecture 41: Introduction to inverters

... (b) PWM one side, while• other AC motor drive •  Inverters for wind and solar side switches at 60 Hz •  Fluorescent lamp driver •  Electric ...
Self Inductance.
Self Inductance.

Transformers - schoolphysics
Transformers - schoolphysics

... 3. Write down one place/appliance where you would expect to find a step down transformer ...
Heathkit SB-200 - Orange County (California) Amateur Radio Club
Heathkit SB-200 - Orange County (California) Amateur Radio Club

... amplifier in line. The bias on the grids drops from -100V to about -2 volts, the voltage drop across the 33Ω resistor. This bias voltage is applied to the grids and sets the quiescent plate current for the final tubes (about 90 ma.) Final Tubes: One of the early era tubes that does well in linear mo ...
3 Numerical simulations of electromagnetic field
3 Numerical simulations of electromagnetic field

... 2 Numerical simulations of electromagnetic field in ferromagnetic laminated toroidal cores Mathematical modeling of electromagnetic field in laminated cores is usually difficult problem. It is connected with nonlinear, anisotropic properties and complicated geometric shape of the core, particularly ...
SAFER (main)
SAFER (main)

Electronic transformer compatible step-down converter for
Electronic transformer compatible step-down converter for

Question Bank Part1
Question Bank Part1

... 4) Zero temperature coefficient 13. In addition to rectifying properties, selenium has the property of being light sensitive. How is selenium's resistance affected by light? 1) It decreases with an increase in light intensity 2) It increases with an increase in light intensity 3) It remains constant ...
Table A - Camosun College
Table A - Camosun College

bq24707_25_26 Input Voltage DPM App Note
bq24707_25_26 Input Voltage DPM App Note

... Battery Power Applications ABSTRACT ...
LM134 LM234
LM134 LM234

... illustrated in the above diagram. Line abc represents the sensor current before adjustment and line a’b’c’ represents the desired output. A gain adjustment provided at T2 will move the output from b to b’ and will correct the slope at the same time so that the output at T1 and T3 will be correct. Th ...
< 1 ... 264 265 266 267 268 269 270 271 272 ... 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 © 2026
  • DMCA
  • Privacy
  • Terms
  • Report