• 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
A Three Phase Based Four Switch Inverter for Renewable Energy
A Three Phase Based Four Switch Inverter for Renewable Energy

... fuel. Renewable energy is also penetrating into modern power grids to reduce the global carbon footprints. Three phase micro grids are receiving significant importance in the field of research due to the high level power transfer capability of the overall power network. Electrical grids tend to be m ...
GCSE Physics - Physics4IGCSE
GCSE Physics - Physics4IGCSE

... Because the magnetism is changing a voltage is induced in the secondary coil. The size of the output voltage depends on the size of the two coils. ...
Data sheet PCT2000
Data sheet PCT2000

... creepage distances, even if they are plugged into the socket. So there is always a risk of an electric shock. Use only colored cables which match to the color of the jack to help prevent a wrong connection. When connecting the measurement circuit, take special care not to connect the voltage wires t ...
Designing Flyback Converters Using Peak-Current-Mode
Designing Flyback Converters Using Peak-Current-Mode

... capacitor must be selected based on either the ripple due to the rectified line voltage, or based on holdup-time requirements. Holdup time can be defined as the time period over which the power supply should regulate its output voltage from the instant the AC power fails. The MAX17596 is useful in i ...
MJ21193 数据资料DataSheet下载
MJ21193 数据资料DataSheet下载

... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any partic ...
AC Signals
AC Signals

Tailoring GMAW Waveforms for Specific Applications
Tailoring GMAW Waveforms for Specific Applications

FSDH0265RN, FSDM0265RN
FSDH0265RN, FSDM0265RN

... 5. Soft Start : The FPS has an internal soft start circuit that slowly increases the feedback voltage together with the Sense FET current after it starts up. The typical soft start time is 15msec, as shown in Figure 8, where progressive increments of the Sense FET current are allowed during the star ...
AND8125/D Evaluating the Power Capability of NCP101X
AND8125/D Evaluating the Power Capability of NCP101X

... auxiliary winding option. 5. “I have a converter that already runs at 130 kHz with an auxiliary winding!”: In that case, no option, provided that power budget is compatible… 6. “I need the smallest possible size”: If the frequency increase does not help to pass more power, it certainly provides a s ...
Synchronous Generator is a doubly excited machine
Synchronous Generator is a doubly excited machine

Resistor Circuits Lab
Resistor Circuits Lab

... Example: 3 resistors in parallel ...
Aalborg Universitet Abulanwar, El-Saye Mohamed; Chen, Zhe; Iov, Florin
Aalborg Universitet Abulanwar, El-Saye Mohamed; Chen, Zhe; Iov, Florin

LT4320/LT4320-1 - Ideal Diode Bridge Controller
LT4320/LT4320-1 - Ideal Diode Bridge Controller

Circuit Simulator User Manual
Circuit Simulator User Manual

... As  soon  as  elements  are  placed  on  the  circuit  board,  the  simulation  will  start  running.     To  pause  simulation,  click  the  Pause  Simulation  button  at  the  top  left  of  the  simulator   window.    Click  this ...
Characterization of the Superconducting to Normal Transition of
Characterization of the Superconducting to Normal Transition of

Si8220/21 - Silicon Labs
Si8220/21 - Silicon Labs

... The Si8220/21 is a high-performance functional upgrade for opto-coupled drivers, such as the HCPL-3120 and the HPCL-0302 providing 2.5 A of peak output current. It utilizes Silicon Laboratories' proprietary silicon isolation technology, which provides a choice of 2.5, 3.75, or 5.0 kVRMS withstand vo ...
BS31473481
BS31473481

... cope-up with ever increasing power crisis. A PMBLDCM which is a kind of threephase synchronous motor with permanent magnets (PMs) on the rotor and trapezoidal back EMF waveform, operates on electronic commutation accomplished by solid state switches. It is powered through a three-phase voltage sourc ...
LAP-301DB
LAP-301DB

... class in the industry while degradation is considerably slow, which helps to keep illumination vividness almost unchanged and the image of sets high over a long period of time. ...
Electricity generators
Electricity generators

... the generator is connected. DC generators are usually operated at fairly low voltages to avoid the sparking between brushes and commutator that occurs at high voltage. The highest potential commonly developed by such generators is 1500 V. In some newer machines this reversal is accomplished using po ...
MX321 AUTOMATIC VOLTAGE REGULATOR (AVR)
MX321 AUTOMATIC VOLTAGE REGULATOR (AVR)

Low Input Voltage, Cap Free 150 mA Low
Low Input Voltage, Cap Free 150 mA Low

File - Vijay Solanki
File - Vijay Solanki

AP8803 Description Features Pin Assignments Typical Applications
AP8803 Description Features Pin Assignments Typical Applications

Helium corona-assisted air discharge
Helium corona-assisted air discharge

... Low-temperature plasma is a very important physical means that can provide multifaceted applications in fabrication, air purification, sanitation of water, treatment of surfaces of various materials including the human body, to name just a few.1–5 Since the sustainment of plasma depends on the conti ...
LR3421092114
LR3421092114

... requirement of the load, in which reference current has been estimated by regulating the dc side capacitor voltage. This method is simple and easy to implement but compensate both harmonics and reactive power simultaneously, which is not preferred sometimes due to increased rating of APF [2]. The si ...
< 1 ... 212 213 214 215 216 217 218 219 220 ... 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