• 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
LTM4608A - Low VIN, 8A DC/DC uModule with Tracking, Margining, and Frequency Synchronization
LTM4608A - Low VIN, 8A DC/DC uModule with Tracking, Margining, and Frequency Synchronization

... the phase relationship between the internal oscillator and CLKOUT. Tie it high for 2-phase operation, tie it low for 3-phase operation, and float or tie it to VIN/2 for 4-phase operation. MGN (B8): Margining Pin. Increases or decreases the output voltage by the amount specified by the BSEL pin. To d ...
SII CMOS IC CD-ROM CATALOG 2000/2001 - SP
SII CMOS IC CD-ROM CATALOG 2000/2001 - SP

Earth fault current distribution on transmission networks
Earth fault current distribution on transmission networks

... These networks are designed to provide an excellent level of service within a regulatory framework; network design also takes account normal load growth which has historically been around an average of 1.5% to 2% per annum. The main components of a high voltage transmission system are the following: ...
Contactors and relays
Contactors and relays

... current change dI/dt which can have a negative effect on other components in the same actuating circuit. To prevent damage, contactor coils are often connected in parallel with additional suppressor circuits (RC suppressors, varistors or diodes). ...
3G STU Installation Guide
3G STU Installation Guide

... For certain alarm panels, the 3GSTU-PLI can be directly mounted using the "Plug-in" connections available. Locate it on the two 8-way connectors on the control panel circuit board. Take care to align the pins to the sockets on the board correctly: if they are out of alignment, damage may occur. For ...
TEA1716T - NXP Semiconductors
TEA1716T - NXP Semiconductors

... The SUPREG series stabilizer is enabled after CSUPIC has been fully charged. Enabling the stabilizer after charging ensures that any optional external circuitry connected to SUPREG does not dissipate any of the start-up current. To ensure that the external MOSFETs receive sufficient gate drive curre ...
електроника electronics - Electronics Journal
електроника electronics - Electronics Journal

... special issue to the 11th International Symposium on Power Electronics – Ee2001. The editor of the journal Prof. Dr. Branko Dokić has invited us, as guest-editors, to present the most interesting papers from the symposium. This is a part of very successful collaboration between the Faculty of Electr ...
Faulted circuit indicator application guide COOPER POWER SERIES
Faulted circuit indicator application guide COOPER POWER SERIES

national transmission
national transmission

... In many cases, it will be practical to eliminate or remove the hazards that have been identified. Let’s suppose that you are a mechanical maintainer and you are given a job to replace some tubes in the boiler. The boiler will be shut down, and the tubes allowed cooling and draining. Thus we have in ...
Voltage Collapse Mitigation - pes-psrc
Voltage Collapse Mitigation - pes-psrc

... Final version, December, 1996 voltage in a specific area that may be subject to voltage collapse. Power flow studies will show how these sources respond to voltage depressions in the region of interest. When studies have defined the relationship of the Var reserve in these specific sources, to tota ...
Siemens Sirius Soft Starter - Industrial Drives and Controls Ltd
Siemens Sirius Soft Starter - Industrial Drives and Controls Ltd

... tions. Today, the advantages of soft starting and stopping can be utilized in the widest range of applications to more simply and cost-effectively implement optimum machine concepts. ...
Conduction Losses and Common Mode EMI Analysis on
Conduction Losses and Common Mode EMI Analysis on

... controller) from Texas Instrument was used in the experimental prototype circuit because it does not require line voltage sensing. It should be noted that switches S1 and S2 in both Dual Boost and Two-circuit-boost PFC are operated simultaneously by the same gate signal from the controller. Although ...
Arc Welding
Arc Welding

... Table 1: AC/DC comparison chart AC transformer sets ...
Aalborg Universitet Design and Control of an Inverter for Photovoltaic Applications
Aalborg Universitet Design and Control of an Inverter for Photovoltaic Applications

... converts sunlight to electrical current, without any form for mechanical or thermal interlink. PV cells are usually connected together to make PV modules, consisting of 72 PV cells, which generates a DC voltage between 23 Volt to 45 Volt and a typical maximum power of 160 Watt, depending on temperat ...
Loss of AC Voltage Considerations - pes-psrc
Loss of AC Voltage Considerations - pes-psrc

IEEE Draft Guide for the Specification of Fixed Series Capacitor
IEEE Draft Guide for the Specification of Fixed Series Capacitor

Guide to Low Voltage Busbar Trunking Systems Verified to
Guide to Low Voltage Busbar Trunking Systems Verified to

... that may need to be applied are as in the Table 1. Abnormal temperature rise may occur in the conductors because of harmonic currents flowing in the phases and the summing of the triplen harmonics in the neutral. Therefore as an alternative the manufacturer may provide a BTS specifically designed fo ...
Machines and Stepping Motors
Machines and Stepping Motors

... Common variable-reluctance machines can be categorized into two types: singlysalient and doubly-salient. In both cases, their most noticeable features are that there are no windings or permanent magnets on their rotors and that their only source of excitation consists of stator windings. This can be ...
HYPERTHERM SENSOR™ PHC PLASMA HEIGHT CONTROL
HYPERTHERM SENSOR™ PHC PLASMA HEIGHT CONTROL

... 3) Suitable for use on a circuit capable of delivering not more than 5000rms symmetrical amperes,  230 volts maximum.  4) Integral solid state short circuit protection does not provide branch circuit protection.  Branch  circuit protection provided by integral LISTED branch circuit protection fuse.  ...
Welding 101 - Electrical connection
Welding 101 - Electrical connection

... remote areas where mains power is not available, thereby extending MMA welding’s versatility. With MMA welding only a limited amount of weld metal can be deposited from one electrode. This means electrodes have to be replaced frequently, making it a less productive process than other welding methods ...
LTM4603/LTM4603-1 - 6A DC/DC uModule with PLL, Output Tracking and Margining
LTM4603/LTM4603-1 - 6A DC/DC uModule with PLL, Output Tracking and Margining

... voltage range of 4.5V to 20V, the LTM4603 supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 6A continuous current (8A peak). Only bulk input and output capacitors are needed to complete the design. The low profile (2. ...
LTM8047 - 3.1VIN to 32VIN Isolated uModule DC/DC Converter
LTM8047 - 3.1VIN to 32VIN Isolated uModule DC/DC Converter

... acceptable, and can yield improved dynamic response, if it is necessary. Again, it is incumbent upon the user to verify proper operation over the intended system’s line, load and environmental conditions. Ceramic capacitors are small, robust and have very low ESR. However, not all ceramic capacitors ...
Conduction Losses and Common Mode EMI Analysis on
Conduction Losses and Common Mode EMI Analysis on

... controller) from Texas Instrument was used in the experimental prototype circuit because it does not require line voltage sensing. It should be noted that switches S1 and S2 in both Dual Boost and Two-circuit-boost PFC are operated simultaneously by the same gate signal from the controller. Although ...
Spellman High Voltage Reference Manual 2016
Spellman High Voltage Reference Manual 2016

Current, Voltage Directional Relays
Current, Voltage Directional Relays

< 1 ... 4 5 6 7 8 9 10 11 12 ... 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