Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 400 MVA 200 MVA 500 MVA 100 MVA 400 MVA 200 MVA 500 MVA 100 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Proximity effect is more in case of power cables None of these same in both cases over head lines power cables None of these same in both cases over head lines ANSWER DOWNLOAD EXAMIANS APP
Power Systems A synchronous generator is of 100 MVA have inertia constant of 20 MJ/MVA. Find the angular momentum in MJsec/electrical degrees 5 0.22 0.4 2000 5 0.22 0.4 2000 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The use of high speed circuit breakers decrease system stability. reduces the short circuit current. increased the short circuit current. improves system stability. decrease system stability. reduces the short circuit current. increased the short circuit current. improves system stability. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of no length criterion. short length lines. long transmission lines. medium length lines. no length criterion. short length lines. long transmission lines. medium length lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In boiler water reactor (BWR) all of above. enriched uranium is used as fuel. the feed water acts both coolant and a moderator. there is danger of radioactive contamination of steam. all of above. enriched uranium is used as fuel. the feed water acts both coolant and a moderator. there is danger of radioactive contamination of steam. ANSWER DOWNLOAD EXAMIANS APP
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