what is high voltage
The term high voltage usually means electrical energy at voltages high enough to inflict harm on living organisms. Equipment and conductors that carry high voltage warrant particular safety requirements and procedures. In certain industries, high voltage means voltage above a particular threshold
Effectiveness of Variable Frequency Resonant Method for After-laying test on High voltageExtruded Cable
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ABSTRACT In order to study the efficiency and the validity of the frequency-tuned series resonant test system for detecting different types of defects, the withstanding test of XLPE cables with typical single defect has been carried out within the frequency range of 20-
High Voltage holding in a MV accelerator for DEMO
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Assessment of the NBI for DEMO High Voltage holding in a MV accelerator for DEMO Final Report High Voltage holding in
High Voltage Magnetic Insulation Testing
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ABSTRACT A partial discharge (PD) is the dissipation of energy caused by the buildup of localized electric field intensity. In high voltage potted magnetic devices this build up of charge and its release can be symptomatic of problems associated with aging and
Nonstandard High Voltage Electric Insulation Models
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ABSTRACT The design of modern electric insulation devices for medium and high voltage (HV) applications requires computational work that goes far beyond solving just a Laplace equation for the electric potential, and limiting the electric field below critical design values
Instrumental development and application of an in situ high voltage vacuum discharge setup in an Environmental Scanning Electron Microscope
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T Blom, T Muranaka, V Ziemann, K Leifer ,emc2012.org.uk Electrical discharges inside the accelerating structures (typically made of Cu) of high energy accelerators are limiting their performance. This work is one of the feasibility studies of the Compact Linear Collider (CLIC) that uniquely requires an accelerating field of 100 MV/m.
Study of an atmospheric surface barrier discharge actuator using a nanosecond rising high-voltage power supply
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ABSTRACT In the field of flow control by plasma actuator, an original high-voltage power supply has been developed to provide a nanosecond rising followed by millisecond decay. With this device, a 15 kV discharge on a polymer dielectric barrier can be obtained with a
DROOP COMPENSATION FOR THE HIGH VOLTAGE CONVERTER MODULATORS AT THE SPALLATION NEUTRON SOURCE
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ABSTRACT The Spallation Neutron Source (SNS) has been in operation since 2006 and routinely operates at 1 MW of beam power. At 1 MW, the High Voltage Converter Modulators (HVCMs) are delivering 8-11 MW pulsed power to the Klystrons for up to 1185 us at 60 Hz.
EXISTING HIGH VOLTAGE LINE
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16. COORDINATE COORDINATE COORDINATE WITH 25,000 AIC FUSING (BY TRANSALTA) TRANSALTA) EXISTING HIGH VOLTAGE LINE HIGH VOLTAGE PRIMARY 4#250MCM, 4#250MCM, RWU90, XL AL #3/0 GRD, 4″ C PROVIDE A SECOND SPARE 4″ CONDUIT.
High Spatial Resolution Measurements on Surface Voltage Distribution with Electrostatic Force Microscope
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Electrostatic Force Microscope (aka EFM). The EFM enables to measure surface voltage distribution with a spatial resolution of 10 µm. Although the spatial resolution is incomparably higher than any other conventional electrostatic voltmeters, it can measure
DENOISING OF ON-LINE PARTIAL DISCHARGE SIGNAL FROM HIGH-VOLTAGE ROTATING MACHINES USING STANDARD DEVIATION THRESHOLD
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ABSTRACT. Recently, the increasing importance of reliable electric power supply has brought greater focus on on-line diagnosis of power equipment. A major cause of faults in high- voltage rotating machines is insulation breakdown in the stator winding. Thus, on-line
High step up voltage gain achieved in DC-DC converters using Linear Peak Current Mode control technique
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ABSTRACT Conventional dc-dc boost converters are unable to provide high step-up voltage gains due to the effect of power switches, rectifier diodes, and the equivalent series resistance of inductors and capacitors. In this paper a Linear Peak Current Mode
A High-Voltage Tolerant Interface Circuit for Embedded CMOS Non-volatile Memories
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CY Huang, H Lin ,ee.nchu.edu.tw The advanced CMOS technologies push nano-scale geometries of MOSFETs. To avoid high electric field stresses, the operating voltages become lower and lower. However, in some applications high-voltage interfaces are still required, such as MEMS device control,
Modeling of Vertical Double Implanted MOSFET With Non Uniform Doping Profile For HighBreakdown Voltage
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ABSTRACT This paper presents a vertical DIMOS transistor structure in 4H-SiC material. The modeling is done to achieve a very high breakdown voltage of the order of 15 KV. To achieve high breakdown voltage Gaussian profile in the drift region is used. The Poisson’s
CURRENT PASSING THROUGH GROUNDING SYSTEM OF HIGH VOLTAGE SUBSTATION AND PARAMETERS IMPACTING ON IT WHEN LIGHTNING
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ABSTRACT Current injecting a grounding system of high voltage substation decides the amplitude and the voltage distribution along the grounding grid -[2]. Therefore, the determination of short circuit current at substation is always cared by the designers.[9]
Coupling Transmission Lines for Wave Shape Adjust in High-Voltage Surge Tests
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ABSTRACT High voltage tests are usually required for evaluating electrical withstand of equipments, like power transformers. These tests are based on standards that suggest values for the parameters of the voltage surge wave shape to be applied. However, for the
How High Working Voltage Can Go in Polymer Tantalum Capacitors
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ABSTRACT Until recently, working voltages of Polymer Tantalum (Ta) capacitors were significantly lower than working voltages of Solid Ta capacitors with MnO2 cathodes. The first increase in working voltage of Polymer Ta capacitors was achieved by KEMET due to
EE543 High Voltage DC Transmission (Elective)
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Comparison of AC and DC Transmission systems, Applications of DC Transmission, Description of DC Transmission Systems, Modern trends in HVDC Technology. Static power conversion – Principle -Ideal / real commutation process ,Rectifier operation ,Inverter operation –
Solid-State Power and High Voltage Devices The Soft Punchthroughþ Superjunction Insulated Gate Bipolar Transistor: A High Speed Structure With Enhanced
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REGULAR PAPERS Silicon and Column IV Semiconductor Devices Resistance and Threshold Switching Voltage Drift Behavior in Phase-Change Memory and Their Temperature Dependence at Microsecond Time Scales Studied Using a Micro-Thermal Stage. . . . . . . . . . . . . . . . . . . . .
Effect of Cr-oxide partial coating on the electrochemical behavior of thin film high-voltagespinel
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The stored energy content of a (Li ion) battery can be optimized by increasing the specific capacity (mAhg-1) of the cell, maximizing the potential difference between positive (cathode) and negative (anode) electrodes and by reducing the amount of inactive material. Lithium
Investigation on degradation dye wastewater by the liquid-phase high-voltage pulsed discharge
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ABSTRACT To investigate the technological parameter effects, the reactive Black 5 (RB5) dye wastewater was set as treatment targets by liquid-phase high-voltage pulse discharge. The results showed that the decoloration rate of degradation in wastewater increased with the
DESIGN AND APPLICATION OF A HIGH-FREQUENCY HIGH-VOLTAGE GENERATOR
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M Birle, C Leu, S Bauer ABSTRACT The increasing demands on the distribution and transformation of electrical energy require the advanced use of innovative power electronic circuits with higher voltages and different frequencies. These types of voltages mean new requirements on insulating
Modern High-Voltage Control of an Electrostatic Precipitator
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ABSTRACT A modern high-voltage control of an electrostatic precipitator provides both high separation efficiency and low demand of electrical power. The paper explains the physical background how this pretended contradiction can be dissolved. Motivation for
HIGH ALTERNATIVE VOLTAGE, ADJUSTABLE SOURCE WITH THREE-PHASE SUPPLY, MADE FOR OZONE GENERATORS
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The paper presents a static electrical high voltage and medium frequency source (15 20kV (peak voltage); 800 1200Hz) with three-phase supply, that functions together with the ozonizer in a medium or high power system that produces ozone industrially through
High Voltage Transformation Ratio using Matrix converter
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ABSTRACT In this paper, two similar Fuzzy Logic Controllers are developed for ac/ac matrix converters. Furthermore, total harmonic distortion (THD) is reduced significantly. Output voltage approaches the input voltage with reduced loss. A Matlab/Simulink simulation
High-Voltage GaN-on-Silicon Schottky Diodes
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T Boles, C Varmazis, D Carlson, L Xia, D Jin ,gaas.org ABSTRACT M/A-COM Technology Solutions has continuing joint development efforts sponsored by the Department of Energy with MIT main campus and MIT Lincoln Laboratory to develop GaN-on-silicon two and threeterminal high-voltage/high-current switching
High Voltage Media Centre
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JKY Series High Voltage Reactive Power Compensation Regulator
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The JKY series high voltage reactive power compensation regulator use the high quality MCU as its nucleus, FFT analysis, SMD surface welding, LCD Chinese display. Inner structure is a circuit board (type D). This piece of controller is simple and believable, with
Effectiveness of High Voltage in Distribution System: High Voltage Distribution System
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ABSTRACT This paper presents the comparison of existing low voltage distribution system with proposed high voltage distribution system. The study is based on a real low voltage feeder The investigation is carried out to determine the losses in the existing low
A New Field Nullification Method for Electrostatic Force Microscope (EFM) for Unknown High Voltage Measurement
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ABSTRACT We have invented a new sensor adjacent methodology for high spatial resolution and high voltage measurement apparatus with which we are able to accomplish arbitrary voltage measurement without causing any unexpected arcing. We have introduced two
DC HIGH-VOLTAGE DIVIDER EVALUATION USING THE BINARY STEP-UP METHOD
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ABSTRACT An evaluation technique and traceability for a DC-resistive high-voltage divider was established based on 1 kV, which was traceable to a Josephson voltage standard at the Korea Research Institute of Standards and Science. To do this, the binary step-up method