Results 31 to 40 of about 153,268 (299)

Fault diagnosis technologies for power transformers during the on‐site inductive oscillating switching impulse voltage withstand test

open access: yesIET Generation, Transmission & Distribution, 2022
Although oscillating switching impulse (OSI) voltage is recommended for the transformer field test, the lack of corresponding fault diagnosis technologies limits its application in the field.
Xuanrui Zhang   +5 more
doaj   +1 more source

Feasibility of applying inductive filtering technology to the HVDC transmission system

open access: yesThe Journal of Engineering, 2018
This study explores the feasibility of applying inductive filtering technology to high-voltage direct-current (HVDC) transmission system since only filtering in the net side may lead to a lot of harmonics in the converter transformer. Basic principles of
Shang Rong-Yan   +2 more
doaj   +1 more source

New Modulation and Impact of Transformer Leakage Inductance on Current-Source Solid-State Transformer

open access: yesIEEE Transactions on Power Electronics, 2022
This article presents a novel modulation scheme for device voltage stress mitigation and comprehensive analysis of the impact of transformer leakage inductance in a current-source solid-state transformer (SST). Different from dual active bridge (DAB) SST, the operation of the current-source SST is similar to that of a flyback converter.
Liran Zheng   +3 more
openaire   +2 more sources

High current and high power superconducting rectifiers [PDF]

open access: yes, 1981
Results on three experimental superconducting rectifiers are reported. Two of them are 1 kA low frequency flux pumps, one thermally and magnetically switched.
Britton, R.B.   +3 more
core   +2 more sources

A novel miniature superconducting converter for 1 kA magnets [PDF]

open access: yes, 1996
A miniature full-wave converter to control the current of a superconducting magnet is developed and tested in our institutes. Typical design values of the device are: AC voltage of 35 V, current of 7 A, and frequency 50-60 Hz; DC voltage o f f 0.2 V, and
Fedorovsky, Michael A.   +3 more
core   +3 more sources

The Influence of the 3rd Harmonic of the Distorted Primary Current on the Self-Generation of the Inductive Current Transformers

open access: yesIEEE Access, 2022
This paper investigates for transformation of the distorted current the low order higher harmonic self-generation phenomenon of tested inductive current transformers.
Michal Kaczmarek, Ernest Stano
doaj   +1 more source

Arcless opening of direct current circuits in technical systems [PDF]

open access: yes, 2017
Operation of the proposed DC circuit breaker consists in the fact that the closing of the thyristor in the DC power circuit with an inductive load results from opening the auxiliary circuit with a current value several fold less than the load current ...
Novikov, Sergey Avtonomovich   +2 more
core   +1 more source

Two-leg three-phase inverter control for STATCOM and SSSC applications [PDF]

open access: yes, 2008
Flexible ac transmission systems (FACTS) devices are attracting an increasing interest both in power system academic research and in electric utilities for their capabilities to improve steady-state performance as well as system stability.
Griffo, A., Lauria, D.
core   +1 more source

Wideband Self-Calibration Method of Inductive CTs and Verification of Determined Values of Current and Phase Errors at Harmonics for Transformation of Distorted Current

open access: yesSensors, 2020
Self-calibration of a designed wideband inductive current transformer (CT) was carried out in the ampere-turns condition. This method does not require a reference transducer. The values of current and phase errors at the harmonics of frequencies from 100
Ernest Stano, Michal Kaczmarek
doaj   +1 more source

Inductance Measurement Using an LCR Meter and a Current Transformer Interface [PDF]

open access: yes2005 IEEE Instrumentationand Measurement Technology Conference Proceedings, 2006
This paper describes a new inductance measurement system based on a commercially available LCR meter, a commercially available audio frequency capacitance bridge, 4 terminal-pair (4TP) capacitance and resistance standards, and a multi-stage, programmable-ratio, current transformer.
B. Waltrip   +2 more
openaire   +1 more source

Home - About - Disclaimer - Privacy