GETCO Exam Paper (30-11-2008) The voltage regulation of a transformer at full load and 0.8 power factor lagging is 2.5%. The voltage regulation at full load, 0.8 power factor leading will be -2.5% 0.01 2.5% zero -2.5% 0.01 2.5% zero ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which of the following connection of transformer will give the highest secondary voltage? star primary, star secondary star primary, delta secondary Delta primary, star secondary Delta primary, delta secondary star primary, star secondary star primary, delta secondary Delta primary, star secondary Delta primary, delta secondary ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The recovery voltage will be maximum for p.f. of zero 0.707 unity 0.5 zero 0.707 unity 0.5 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Directional over current relays have two exciting coils connected across _____ secondary's of two _____ phases T. & P.T., same P.T., different T. & P.T., different T., different T. & P.T., same P.T., different T. & P.T., different T., different ANSWER DOWNLOAD EXAMIANS APP
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 transmission line synchronous motor synchronous generator static load transmission line synchronous motor synchronous generator static load ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The effect of wind pressure is more predominant on supporting towers neutral wires insulator transmission lines supporting towers neutral wires insulator transmission lines ANSWER DOWNLOAD EXAMIANS APP
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