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Capacitances in physical distributed circuits of power transformers for simulation based frequency response interpretation have been so far calculated analytically based on internal transformer design and dielectric property data. For the practical application on in-service power transformers, the capacitances should be appropriately determined based on analysis of terminal measurements and simulation...
Inductances in physical distributed circuits of power transformers for simulation based frequency response interpretation have been so far calculated analytically based on internal transformer design and core material property data. For practical application on in-service power transformers, the inductances should be appropriately determined based on analysis of terminal measurements. This paper presents...
The Frequency Response Analysis (FRA) is considered as an useful measure to detect deformation and changes of the active part of transformers. However, the corresponding interpretation is still subject of different investigation as there are many questions to be answered.
The lumped transformer equivalent circuit has been recently adapted based on duality principle and verified for the purposes of transient analysis with reasonable accuracy and frequency response analysis. However such circuit is developed and validated for balanced and unbalanced three-phase excitation. On the other hand, several diagnostic tests such as Frequency Response Analysis (FRA), ratio, short-circuit...
Purpose To describe the change in ventilatory practice in a tertiary paediatric intensive care unit (PICU) in the 5-year period after the introduction of high-flow nasal prong (HFNP) therapy in infants <24 months of age. Additionally, to identify the patient subgroups on HFNP requiring escalation of therapy to either other non-invasive or invasive ventilation, and to identify any adverse events...
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