GETCO Exam Paper (30-11-2008) The function of a breather in a transformer is to suppress harmonics to provide protection against over currents to arrest flow of moisture into the tank to control the level of oil in the tank to suppress harmonics to provide protection against over currents to arrest flow of moisture into the tank to control the level of oil in the tank 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) Interconnected power systems operating with "tie line bias" will respond to both frequency and tie line load changes tie line load changes only tie line voltage changes only frequency changes only both frequency and tie line load changes tie line load changes only tie line voltage changes only frequency changes only ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Transient stability of a power system depends on the short circuit ratio of generating units the strength of transmission network fault-clearing time All of these the short circuit ratio of generating units the strength of transmission network fault-clearing time All of these ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The normal difference between transmission lines and distribution lines is The quantity of power being transmitted by the lines The operating voltage The cross sectional area of the conductors The quantity of current carried by the lines The quantity of power being transmitted by the lines The operating voltage The cross sectional area of the conductors The quantity of current carried by the lines ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Corona usually occurs when the electrostatic stress in the air around the conductor succeeds 11 kV (rms value)/cm 6.6 kV (rms value)/cm 22 kV (maximum value)/cm 30 kV (maximum value)/cm 11 kV (rms value)/cm 6.6 kV (rms value)/cm 22 kV (maximum value)/cm 30 kV (maximum value)/cm ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The C.B.s which produces the least arc energy are minimum oil air blast plain oil air break minimum oil air blast plain oil air break ANSWER DOWNLOAD EXAMIANS APP
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