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Modeling, Analysis and Control of Voltage-Source
Modeling, Analysis and Control of Voltage-Source

... Insulated-Gate Bipolar Transistors (IGBTs) have been improved. IGBTs now meet the requirements of high power industry. The switching of IGBTs is controlled by gate voltage, and does not require external circuit to turn off. This advantage makes the IGBTs a suitable choice to regulate ac and dc netwo ...
power meter pw3336/pw3337
power meter pw3336/pw3337

... 2 IEC61000-4-7 compliant harmonic measurement 3 Large selection of interfaces The PW3336/PW3337 supports measurement that complies with IEC 61000-4-7:2002, the international standard governing harmonic measurement. The power meters can measure voltage, current, and power harmonics up to the 50th ord ...
LTM8040 - 36V, 1A uModule LED Driver and Current Source.
LTM8040 - 36V, 1A uModule LED Driver and Current Source.

... state. Circuitry drawing current from the LPWR pin is also disabled. This way, the LTM8040 “remembers” the current sourced from the LEDA output until PWM is pulled high again. This leads to a highly linear relationship between pulse width and output light, allowing for a large and accurate dimming r ...
Driver/Receiver MC145406
Driver/Receiver MC145406

Fast Acting Fuse for Semicon- ductor Protection
Fast Acting Fuse for Semicon- ductor Protection

... Once the end of the pre-arcing time is reached the fuse switches to the arcing mode. The fuse will develop an arc voltage, higher than the source voltage thus will force the current to go down to zero. This period is call the arcing time. During this period fuse will have to dissipate the energy sup ...
Current Mode PWM Controller for Forward and Flyback
Current Mode PWM Controller for Forward and Flyback

... • Low startup−current: reaching a low no−load standby power represents a difficult exercise when the controller requires an external, lossy, resistor connected to the bulk capacitor. The start−up current is guaranteed to be less than 100 mA maximum, helping the designer to reach a low standby power ...
12+ CUTMASTER
12+ CUTMASTER

... This Operating Manual has been designed to instruct you on the correct use and operation of your Thermal Dynamics product. Your satisfaction with this product and its safe operation is our ultimate concern. Therefore please take the time to read the entire manual, especially the Safety Precautions. ...
HIS – Highly Integrated Switchgear up to 550 kV, 63 kA, 5000 A
HIS – Highly Integrated Switchgear up to 550 kV, 63 kA, 5000 A

... and outdoor use requires less than half the space of comparable air-insulated switchgear. The 8DQ1-type HIS is a compact switchgear solution for rated voltages of up to 550 kV. It is used mainly for cost-efficient renewal or expansion of air-insulated outdoor and indoor substations, particularly if ...
Cewe Digital Programmable Transducer
Cewe Digital Programmable Transducer

... On the 1-element Cewe DPT, the single phase voltage and neutral wires are connected to the transducer. The voltage measured is phase voltages. Power is calculated from the single phase voltage and current. Harmonic measurement is made on phase voltage. The phase to phase voltage is calculated from t ...
POL- SiP - Renesas e-Learning
POL- SiP - Renesas e-Learning

BO36390397
BO36390397

... increase in both production and financial loss for industries , therefore it is a need to mitigate voltage sag. In distribution system point there is also radial distribution in which loads are connected have different lengths short circuited at different points with different rating, this leads var ...
csl series - Marley Engineered Products
csl series - Marley Engineered Products

... and steel internal sheet metal parts will give excel lent service under most operating conditions, including coastal salt air and industrial atmospheres. However, the finish is not intended for direct salt spray exposure in marine application or highly corrosive greenhouse, swimming pool, chemical s ...
and Multi-5 (120, 208, 240, 277, 480)
and Multi-5 (120, 208, 240, 277, 480)

Datasheet - Diodes Incorporated
Datasheet - Diodes Incorporated

... 6. Specifications in bold type are limited to -40C ≤ TJ ≤ +125C. Limits over temperature are guaranteed by design, but not tested in production. 7. Output voltage temperature coefficient is defined as the worst case voltage change divided by the total temperature range. 9. Regulation is measured a ...
Downloaded
Downloaded

... reactance. The model is expressed in per unit (pu) quantities, with all parameter values referred to the stator of the induction machine. As long as quasi-static considerations are reasonable, the model in Fig. 2 can represent the system both before and after a grid fault. During a fault, the voltag ...
DRV8880 - Texas Instruments
DRV8880 - Texas Instruments

- Legrand
- Legrand

... and for which protection against direct contact is therefore in theory already provided. The argument is based on the fact that these enclosures are seldom locked and that unqualified people carry out simple operations in them, such as resets. If, basically, this requirement is justified, we must be ...
Implementation and Applications of Current
Implementation and Applications of Current

... The pass element can bipolar, JFET, MOSFET, or a combination. The examples recommend MOSFETS because their low gate current minimizes output error. Also, MOSFETs with very high current ratings are available, and require no additional drivers. ...
LM5117 Wide Input Range Synch Buck Controller w Analog Curr
LM5117 Wide Input Range Synch Buck Controller w Analog Curr

VOM617A Low Input Current, Phototransistor Output, SOP
VOM617A Low Input Current, Phototransistor Output, SOP

BP104
BP104

... Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase, including ...
LM2574/LM2574HV SIMPLE SWITCHER 0.5A Step
LM2574/LM2574HV SIMPLE SWITCHER 0.5A Step

... replacement for popular three-terminal linear regulators. Because of its high efficiency, the copper traces on the printed-circuit board (PCB) are normally the only heat sinking needed. A standard series of inductors optimized for use with the LM2574 are available from several different manufacturer ...
Kuhlman Electric Corporation
Kuhlman Electric Corporation

... stage forced-air cooling available. Three phase transformers larger than 10,000 kVA are available self-cooled, with up to 2 stages of forced air cooling. Primary voltages through 161 kV are offered, as well as a full range of options in all ratings. All designs feature high short circuit strength to ...
BD89630EFJ
BD89630EFJ

... ●Consideration on permissible dissipation and heat generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower ...
Rev. A - Texas Instruments
Rev. A - Texas Instruments

... Connect a VM rated, 0.1-µF ceramic capacitor between CPH and CPL ...
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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.
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