GETCO Exam Paper (22-07-2015) Merz-Price protection is employed for protection of transmission lines circuit breaker alternators motor transmission lines circuit breaker alternators motor ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) Earth wire on EHV overhead transmission line is provided to protect the line against lightning surge excessive fault voltages corona effect switching surge lightning surge excessive fault voltages corona effect switching surge ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) For selecting low voltage cable which of the following factors is not important? voltage grade short circuit current rating permissible voltage drop current carrying capacity voltage grade short circuit current rating permissible voltage drop current carrying capacity ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (22-07-2015) What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω 400 MW 250 MW 1000 MW 1000 kW 400 MW 250 MW 1000 MW 1000 kW ANSWER EXPLANATION DOWNLOAD EXAMIANS APP SIL = (kV)²/Z₀
GETCO Exam Paper (22-07-2015) The rating of given on the name plate of a transformer indicates the: Apparent power which it draws from the supply mains True power which it can supply Apparent power which it can supply True power whichh it draws from the supply mains Apparent power which it draws from the supply mains True power which it can supply Apparent power which it can supply True power whichh it draws from the supply mains ANSWER EXPLANATION DOWNLOAD EXAMIANS APP The rating of given on the name plate of a transformer indicates the:Apparent power which it can supply S=V( supplied voltage)*I (load current)active power = v* i*cosφreactive power = v* i*sinφ
GETCO Exam Paper (22-07-2015) For a given transformer volte/turn for primary and secondary winding is depends on transformer design same depends on load different depends on transformer design same depends on load different ANSWER EXPLANATION DOWNLOAD EXAMIANS APP emf = 4.44*f*φ*Temf/T = 4.44*f*φ
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