Feasibility of free radical detection for condition assessment of oil/paper insulation of transformers

2008 ◽  
Author(s):  
K. Abdolall ◽  
A.J. Vandermaar
Keyword(s):  
Free Radical ◽  
Condition Assessment ◽  
Radical Detection ◽  
Paper Insulation

Free radical detection in water after processing by means of high voltage electrical discharges and high power ultrasound

2020 ◽  
Author(s):  
Anet Režek Jambrak ◽  
Shikha Ojha ◽  
Danijela Šeremet ◽  
Marinela Nutrizio ◽  
Nadica Maltar‐Strmečki ◽  
...  
Keyword(s):  
Free Radical ◽  
High Voltage ◽  
High Power ◽  
Electrical Discharges ◽  
Power Ultrasound ◽  
High Power Ultrasound ◽  
Radical Detection

Microwave spectroscopy of nonlinear free radicals - I. General theory and application to the Zeeman effect in HCO

1973 ◽  
Vol 333 (1594) ◽  
pp. 265-288 ◽  
Keyword(s):  
Free Radicals ◽  
Free Radical ◽  
Magnetic Fields ◽  
General Theory ◽  
Zeeman Effect ◽  
Open Shell ◽  
Microwave Spectroscopy ◽  
Irreducible Tensor ◽  
Tensor Methods ◽  
Radical Detection

A general theory for the description of the microwave spectra of nonlinear open-shell molecules in the presence of external electric or magnetic fields is presented using irreducible tensor methods. This theory provides the basis for discussion of the possible detection of electric dipole transitions between states of a nonlinear free radical. Detection of the four components of a K -doubling transition in small magnetic fields for the free radical HCO between 8.3 and 8.7 GHz is described and the spectrum is analysed in terms of the theory presented earlier. The molecular parameters which result from this analysis are compared with those obtained from solid-state studies.

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