Results 31 to 40 of about 82,174 (302)

Power Transformers and Environmental Protection

open access: yesIFAC-PapersOnLine, 2016
Abstract: Power transformers are among the most expensive equipment installed in power plants and substations. Generally, they contain large quantities of combustible material which can, in the event of ignition, spread fire to adjacent installations.
Leoš Valenta   +2 more
openaire   +1 more source

Low-frequency transformer protection method based on sinusoidal fitting residuals of differential currents

open access: yesInternational Journal of Electrical Power & Energy Systems
Offshore wind power low-frequency transmission system locally presents 100% power electronics and both sides are controlled system, by the influence of bilateral power electronic power control strategy, offshore wind power low-frequency transmission ...
Shuping Gao   +4 more
doaj   +1 more source

Kajian Pemasangan Lightning Arrester pada Sisi Hv Transformator Daya Unit Satu Gardu Induk Teluk Betung [PDF]

open access: yes, 2017
Generally, The power centers are connected to the air transmission line, and the airborne transmission channel is susceptible to disturbances that are affected from outside the system, one of which is a lightning strike.
Jurnal, R. T. (Redaksi)
core  

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

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Sen Transformer Differential Protection Scheme Based on Magnetic Circuit Coupling

open access: yesZhongguo dianli
As a power flow control device, Sen transformer changes the amplitude and phase of voltage and current at both ends of the access line through gear adjustment to achieve power flow regulation.
Tao ZHENG   +5 more
doaj   +1 more source

Verification of Transformer Restricted Earth Fault Protection by using the Monte Carlo Method

open access: yesAdvances in Electrical and Computer Engineering, 2015
The results of a comprehensive investigation of the influence of current transformer (CT) saturation on restricted earth fault (REF) protection during power transformer magnetization inrush are presented.
KRSTIVOJEVIC, J. P., DJURIC, M. B.
doaj   +1 more source

Transformer Differential Protection Lab [PDF]

open access: yes, 2016
The purpose of the Transformer Differential Protection Lab senior design project is to implement the transformer differential protection scheme to protect a transformer when an internal fault is applied.
Dunbar, Justin   +2 more
core   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

open access: yesFEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang   +9 more
wiley   +1 more source

Power Transformers Differential Protection Using the p-q Power Theory [PDF]

open access: yes, 2012
This paper describes the application of the p-q power theory to the differential protection of power transformers. The information provided by the harmonic content of the differential active and reactive power components is used to detect winding insulation failures and to distinguish them from magnetizing inrush current transients.
Oliveira, L. M. R.   +1 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy