Results 41 to 50 of about 33,274 (252)

Evaluation of Voltage Transformers’ Accuracy in Harmonic and Interharmonic Measurement

IEEE Open Journal of Instrumentation and Measurement, 2022
The measurement of Power Quality (PQ), generally performed at Low Voltage (LV) level, is gaining more and more importance also at the Medium Voltage (MV) level, due to the increasing presence of switching power converters (both loads or generators ...
Gabriella Crotti, Giovanni D'Avanzo, Carmine Landi, Palma Sara Letizia, Mario Luiso   +4 more
doaj   +1 more source

Accuracy Performance of Open-Core Inductive Voltage Transformers at Higher Frequencies

Energies
The new revision of the main instrument transformer standard, IEC 61869-1:2023, premiered requirements for the performance of instrument transformers in terms of transfer accuracy at higher frequencies.
Josip Ivankić, Igor Žiger, Bruno Jurišić, Dubravko Franković   +3 more
doaj   +1 more source

Test Methods for Validating Inductive Transformer Performance during Cable Discharge: Main Principles, Parameters and Testing Procedures

Energies
High voltage connections will discharge through inductive voltage and combined transformers when they are switched off. In the past, there was a wide margin between the required capabilities and the actual capabilities of these components.
Andrea Grđan, Igor Žiger, Zlatko Hanić, Imre Tannemaat, Ralf Huth, Ivan Novko   +5 more
doaj   +1 more source

Examples of ultrasonic detection of partial discharges in case of 110 kV instrument transformers [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla"
Instrument transformers are a critical component of power plants, widely distributed due to their essential role in measuring and protecting the entire power system.
Milić Momčilo, Jovanović Đorđe, Radin Vesna, Dimitrijević Marko   +3 more
doaj   +1 more source

Operational diagnostics of high voltage instrument current transformers [PDF]

, 2016
В статті розглянуто пошкоджуваність високовольтних маслонаповнених вимірювальних трансформаторів струму 110 кВ та наведено приклад визначення поточного залишкового ресурсу цих трансформаторів в умовах неповноти початкових даних.
Рубаненко, Олександр Євгенійович
core   +1 more source

Feasibility and Preliminary Efficacy of Integrative Neuromuscular Training for Childhood Cancer Survivors: A Pilot Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of childhood acute lymphoblastic leukemia (ALL) often exhibit early deficits in muscle and movement competence, which can compromise long‐term health. Integrative neuromuscular training (INT), a multifaceted approach combining fundamental movement activities with strength exercises, may help address these deficits during ...
Anna Maria Markarian, Robert U. Newton, Dennis R. Taaffe, Nicholas G. Gottardo, Santosh Valvi, Carolyn J. Peddle‐McIntyre, Jodie Cochrane Wilkie, Daniel A. Galvão   +7 more
wiley   +1 more source

New Directions in Categorical Logic, for Classical, Probabilistic and Quantum Logic [PDF]

, 2014
Intuitionistic logic, in which the double negation law not-not-P = P fails, is dominant in categorical logic, notably in topos theory. This paper follows a different direction in which double negation does hold.
Bart Jacobs, Prakash Panangaden
core   +4 more sources

Dietary Protein Intake and Peritoneal Protein Losses in Peritoneal Dialysis Patients

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Peritoneal dialysis (PD) patients lose protein in their waste dialysate, potentially increasing their risk for malnutrition. We wished to determine whether there was any association between losses and dietary protein intake (DPI). Methods DPI was assessed from 24‐h dietary recall using Nutrics software.
Haalah Shaaker, Andrew Davenport
wiley   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Partial Discharge in Electronic Equipments [PDF]

, 2009
Tato disertační práce se věnuje studiu částečných výbojů (PD) způsobených poklesem spolehlivosti a životnosti elektronických zařízení a systémů. Diagnostika PD je dnes známá metoda pro vysoké napětí u vysoko-výkonných zařízení.
Mammadov, Anar
core