• 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
Grounding and Bonding
Grounding and Bonding

... No other article can match Article 250 for misapplication, violation, and misinterpretation. Terminology used in this article has been a source for much confusion, but that has improved during the last few NEC revisions. It’s very important to understand the difference between grounding and bonding ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) ISSN: 2278-1676

... significant energy saving device. But request high power density DC/DC converter. For a variety of application such as battery base uninterrupted power supplies to critical aerospace application.Eg.Actuators and avionics.The dual active bridge (DAB) topology for DC/DC conversion has been popular. Ov ...
Optical Hybrids - Ohio State University
Optical Hybrids - Ohio State University

... DORIC Logic ...
CONSONANCE
CONSONANCE

... In constant voltage mode, the charge cycle will be terminated once the charge current decreases to 9.5% of the full-scale current. Automatic Battery Recharge After the charge cycle is completed and both the battery and the input power supply (wall adapter) are still Connected, a new charge cycle wil ...
Comparison of PI and ANN Control Techniques for Nine
Comparison of PI and ANN Control Techniques for Nine

... traditional and thin matrix converters as not the wellliked selection, if ride-through could be a demand. Matrix converters also are not most popular, if voltage buck and boost operations area unit each required for a specified direction of power flow. ...
Week 13-14-Transf-SAB2032
Week 13-14-Transf-SAB2032

... Transformer is one of the most useful electrical devices ever invented Functions of transformer: Raise or lower voltage or current in AC circuit Isolate circuit from each other Increase or decrease the apparent value of a capacitor, inductor or resistor Enable to transmit electrical energy over ...
Three-Phase Power Quality Analyzer PowerPad™ Model 3945
Three-Phase Power Quality Analyzer PowerPad™ Model 3945

... look inside your electrical system and see what’s going on? Troubleshooting would be so much easier if you could see the volts, amps and harmonic content in real time and take pictures to document and analyze. Now you can do just that and more with AEMC’s PowerPad. The full color graphical display l ...
AN1625
AN1625

... High current GND tracks (i.e. the tracks connected to the sensing resistor) must be connected directly to the negative terminal of the bulk capacitor. A good quality, high-frequency bypass capacitor is also required (typically a 100 nF÷200 nF ceramic would suffice), since electrolytic capacitors sho ...
Hola Agustin - Portal UniMAP
Hola Agustin - Portal UniMAP

... When the load switch in the secondary circuit of the transformer in Fig 2-7 is closed, a current IX, equal to VX divided by the load impedance, will flow. By Lenz’s law, any current caused to flow by an induced emf flows in such direction as to oppose the action that causes the emf to be induced. In ...
MAX258 Evaluation Kit Evaluates: MAX258 General Description Features and Benefits
MAX258 Evaluation Kit Evaluates: MAX258 General Description Features and Benefits

... The MAX258 EV kit is an isolated push-pull DC-DC converter that provides an unregulated output with respect to the isolated ground. The maximum load is limited by the device and winding ratio of the transformer. The device is an integrated primary-side controller and push-pull driver for isolated po ...
Aalborg Universitet Distributed Voltage Unbalance Compensation in Islanded Microgrids by Using Dynamic-Consensus-Algorithm
Aalborg Universitet Distributed Voltage Unbalance Compensation in Islanded Microgrids by Using Dynamic-Consensus-Algorithm

... VCB by decreasing the negative sequence voltage in DG sides (from VSN1 , VSN2 to VSN1 ' , VSN2 ' , respectively), as shown in Fig. 3 (a). In addition, if VSN1 and VSN2 are equally adjusted ( VSN1 ' = VSN2 ' ), the negative sequence current flow ISN1 and ISN2 will remain unchanged. By apply ...
AAT3193-1 数据资料DataSheet下载
AAT3193-1 数据资料DataSheet下载

... LED enable and serial control input. EN/SET is the ON/OFF control for the LED and the S2Cwire digital input for the AAT3193-1/-2/-3 to control serially the LED brightness according to the maximum current set by RSET. LED ON/OFF and PWM control input. This logic input controls the LED outputs for the ...
Single-stage, single-switch input-current
Single-stage, single-switch input-current

... from capacitive-discharging turn-on switching loss PON(cap). The maximum PON(cap) in a DCM flyback converter is the same as the PON(cap) in a CCM flyback converter. In this paper, a new S4ICS technique which features substantially reduced turn-on switching loss of the switch in a S4ICS flyback conve ...
Application Note AN4107 Design of Power Factor Correction Using FAN7527  1. Introduction
Application Note AN4107 Design of Power Factor Correction Using FAN7527 1. Introduction

Electrolytic Capacitor Technical Notes
Electrolytic Capacitor Technical Notes

- UTas ePrints
- UTas ePrints

Modular Cascaded H-Bridge Multilevel PV Inverter by
Modular Cascaded H-Bridge Multilevel PV Inverter by

operation modes of full-bridge voltage
operation modes of full-bridge voltage

... switches conduct from the instant of their turn-on at nonzero current until their current reaches zero, diodes – from the instant when the current crosses zero until turn-on of the other pair of switches. In this operation mode of the inverter, like in modes IV and V described below, there is a natu ...
PAM2306D Description Pin Assignments
PAM2306D Description Pin Assignments

JAE Series - Airpax
JAE Series - Airpax

... from the trip contacts. The coil may be actuated by sensors monitoring pressure, flow, temperature, speed, etc. Other typical applications include crowbar, interlock and emergency rapid shut down circuitry. Trip may be accomplished by voltage or current, which must be removed after trip. ...
Chapter 5: Welding Process
Chapter 5: Welding Process

MAX1558/MAX1558H Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset General Description
MAX1558/MAX1558H Dual, 3mm x 3mm, 1.2A/Programmable-Current USB Switches with Autoreset General Description

Understanding The TV Horizontal Output Stage
Understanding The TV Horizontal Output Stage

... decreases, or if it opens, the amplitude of the flyback pulse will increase several thousand volts. To minimize this danger, several smaller value capacitors are usually connected in parallel with the retrace capacitor. Also, safety shut-down circuits are added to disable the output stage should the ...
LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin
LM3489/LM3489Q Hysteretic PFET Buck Controller with Enable Pin

... device is intended to be functional, but device parameter specifications may not be ensured. For specifications and test conditions, see the Electrical Characteristics. This pin is internally pulled high and clamped at 8V typical. The absolute maximum and operating maximum rating specifies the input ...
Comparison of PI and ANN Control Techniques for Nine
Comparison of PI and ANN Control Techniques for Nine

... traditional and thin matrix converters as not the wellliked selection, if ride-through could be a demand. Matrix converters also are not most popular, if voltage buck and boost operations area unit each required for a specified direction of power flow. ...
< 1 ... 116 117 118 119 120 121 122 123 124 ... 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