GETCO Exam Paper (30-11-2008) The function of a breather in a transformer is to provide protection against over currents to control the level of oil in the tank to arrest flow of moisture into the tank to suppress harmonics to provide protection against over currents to control the level of oil in the tank to arrest flow of moisture into the tank to suppress harmonics ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Function of breather is to extract moisture from air going into the conservator.it is small container filled with silica gel.silica gel in breather will be blue colour when installedsilica gel turn into pink colour when absorb moisture.
GETCO Exam Paper (30-11-2008) If the +Ve, -Ve & zero sequence reactances of an elements of a power system are 0.3, 0.3 & 0.8 p.u. respectively, the element would be synchronous motor static load synchronous generator transmission line synchronous motor static load synchronous generator transmission line ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In a dry type transformer, accumulation of dust on the windings and core is likely to cause reduction in heat dissipation short circuiting of secondary winding corrosion of core material short circuiting of primary winding reduction in heat dissipation short circuiting of secondary winding corrosion of core material short circuiting of primary winding ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Interconnected power systems operating with "tie line bias" will respond to tie line load changes only both frequency and tie line load changes tie line voltage changes only frequency changes only tie line load changes only both frequency and tie line load changes tie line voltage changes only frequency changes only ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) An air blast C.B. is usually employed for _____ duty intermittent repeated short instantaneous intermittent repeated short instantaneous ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The C.B.s which produces the least arc energy are air break plain oil air blast minimum oil air break plain oil air blast minimum oil ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS