GETCO Exam Paper (30-11-2008) In a transformer it is difficult to measure the efficiency by output-input measurement methods because losses are abnormally high the output is sinusoidal and hence cannot be measured efficiency of transformer is usually high and hence extremely accurate measurements will be necessary output is out of phase with respect to input losses are abnormally high the output is sinusoidal and hence cannot be measured efficiency of transformer is usually high and hence extremely accurate measurements will be necessary output is out of phase with respect to input ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) A reactance relay is _____ restrained _____ relay. direction, over-current direction, over-voltage voltage, over-current voltage, directional direction, over-current direction, over-voltage voltage, over-current voltage, directional ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Corona usually occurs when the electrostatic stress in the air around the conductor succeeds 6.6 kV (rms value)/cm 30 kV (maximum value)/cm 11 kV (rms value)/cm 22 kV (maximum value)/cm 6.6 kV (rms value)/cm 30 kV (maximum value)/cm 11 kV (rms value)/cm 22 kV (maximum value)/cm ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The function of a breather in a transformer is 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 to provide protection against over currents 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) In distance protection, the relay measures _____ impedance of the line from relay up to the fault point. self negative sequence zero sequence positive sequence self negative sequence zero sequence positive sequence ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The first oil refinery in India was set up at Vishakhapatnam Barauni Bombay (Mumbai) Diboi Vishakhapatnam Barauni Bombay (Mumbai) Diboi ANSWER DOWNLOAD EXAMIANS APP
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