Retirement ceremonies can be planned and executed by any Project Officer/NCO using this checklist. Deviations. may be necessary to tailor the ceremony to the individual, but the major items are included.
The ground is used for common mode rejection. The primary purpose of the ground is to prevent power line noise from interfering with the small biopotential signals of interest. By design, amplifiers should not be affected by large changes in potential at both the active and reference sites. A ground electrode for EEG recordings is often placed on the forehead (but could be placed anywhere else on the body; the location of the ground on the subject is generally irrelevant).
This is the purpose of the earthing transformer, which could consist of a zig-zag winding, or a two winding star delta transformer where the star winding of correct voltage supplies an accessible neutral point when connected to the supply system.ower transformers are three-phase transformers used in the electricity supply system. If the secondary is star (wye) connected, it is necessary to earth (ground) the star poi â¦ nt (neutral point) because an unearthed star point could result in a 'floating neutral', which could cause unbalanced phase voltages.