Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Mats S. Bernesjo"'
Publikováno v:
2020 IEEE Power & Energy Society General Meeting (PESGM).
The thermal impact of GIC on the tertiary windings of power transformers has been an area of great interest to the power Industry. This impact is caused by circulating currents induced in the $\Delta$ – connected tertiary windings as consequence to
Autor:
Mats S. Bernesjo, Jonathan DeMay, Bob Arritt, Ramsis S. Girgis, Luke Van der Zel, Scott Hodgdon
Publikováno v:
2019 IEEE Power & Energy Society General Meeting (PESGM).
Two large 3-phase 345 / 115 kV Autotransformers of the same design, located at two different locations in the Northeast region of USA, have been experiencing occasional high sound level excursions of short duration. Detailed analysis performed over s
Autor:
Mats S. Bernesjo, Ramsis S. Girgis
Publikováno v:
2019 IEEE Power & Energy Society General Meeting (PESGM).
There have been a number of cases over the years where power transformers experienced what seemed to be high levels of tank vibrations. In some of these cases, the magnitudes of vibrations indicated an issue with the operation of the transformer and
Publikováno v:
IEEE Transactions on Power Delivery. 26:228-234
Strict limits of the revised noise ordinance of New York City require power transformers to have ultra-low levels at each of the frequencies of transformer noise at full load and overexcitation. This paper describes the development of the technology
Publikováno v:
2011 IEEE Power and Energy Society General Meeting.
Strict limits of the revised Noise Ordinance of NY City require Power Transformers to have ultra — low levels at each of the frequencies of the transformer noise at full load and over-excitation. This paper describes the development of the technolo
Autor:
Ramsis S. Girgis, Mats S. Bernesjo
Publikováno v:
IEEE PES General Meeting.
The subject of deciding on the most appropriate method and conditions for accurately measuring the noise level of a transformer has been discussed through the transformer industry for decades. It is the objective of this Paper to contribute to this e
Publikováno v:
2009 IEEE Power & Energy Society General Meeting.
This paper presents the following aspects of Load noise in power Transformers: (1) Characteristics of Load Noise, (2) Contribution of load noise to the total noise of a transformer and why it has not been well — recognized by the industry in USA an
Publikováno v:
2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century.
The subject of deciding on the most appropriate method of determining the true sound power level of a power transformer has been discussed through the transformer industry for decades. It is the objective of this 2 - Part paper to identify magnitudes