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 100 MVA 200 MVA 500 MVA 400 MVA 100 MVA 200 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems The insulation of the modern EHV lines is designed based on the switch voltage. the lighting voltage. R × I. corona. the switch voltage. the lighting voltage. R × I. corona. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The essential requirement(s) for power plants to be operated as peak load plants are Capability of quick starts. Low capital cost. All of these Quick response to load variation. Capability of quick starts. Low capital cost. All of these Quick response to load variation. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has self and mutual impedances of 0.8 pu and 0.2 pu. Find the positive, negative and zero sequence impedances respectively? 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu 0.8, 0.8 and 1.2 pu 0.6, 0.6 and 1.2 pu 0.8, 0.6 and 1.2 pu 0.6, 0.8 and 1.2 pu ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power station plant load factor is defined as the ratio of the energy generated to that of maximum energy that could have been generated minimum load to peak load average load to the peak load minimum load to average load the energy generated to that of maximum energy that could have been generated minimum load to peak load average load to the peak load minimum load to average load ANSWER DOWNLOAD EXAMIANS APP
Power Systems An over current relay, having a current setting of 125% connected to a supply circuit through a current transformer of ratio 500/5. The plug setting multiplier for a fault current of 5 kA is 2 5 8 6 2 5 8 6 ANSWER DOWNLOAD EXAMIANS APP
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