GETCO Exam Paper (22-07-2015) When the load is suddenly increased in the receiving end of the system, the phase shift will Not affected increase decrease remains same Not affected increase decrease remains same ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Which of the following is not function of substation batteries? emergency lighting circuits provide supply to the excitation system operating automatic control circuits operating protective relay systems emergency lighting circuits provide supply to the excitation system operating automatic control circuits operating protective relay systems ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) The value of holding ratio of relay is always zero greater than 1 Infinite less than 1 zero greater than 1 Infinite less than 1 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) A transformer has negative voltage regulation when its load PF is unity leading lagging zero unity leading lagging zero ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Voltage regulation = ((no load voltage)-(full load voltage)/(no load voltage))VR at leading PF = ((I*R*cosφ)-(I*X*sinφ))/VVR at lagging PF = ((I*R*cosφ)+(I*X*sinφ))/V
GETCO Exam Paper (22-07-2015) Steady state stability of a power system is improved by reducing fault clearing time using double circuit line instead of single circuit line by fast switching decreasing generator inertia reducing fault clearing time using double circuit line instead of single circuit line by fast switching decreasing generator inertia ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) In which of the following festivals are boat races a special feature? Navaratri Onam Rongali Bihu Pongal Navaratri Onam Rongali Bihu Pongal ANSWER DOWNLOAD EXAMIANS APP