Power Systems A three phase, 33 kV oil circuit breaker is rated 1200 A, 2000 MVA, 3 secs. The symmetrical breaking current is 35 kA. 45 kA. 50 kA. 55 kA. 35 kA. 45 kA. 50 kA. 55 kA. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Two identical synchronous machines having same inertia constant are connected in parallel and swinging together. The effective inertia constant is 4 MJ/MVA. Then each machine has inertia constant of 16 MJ/MVA 4 MJ/MVA 8 MJ/MVA 2 MJ/MVA 16 MJ/MVA 4 MJ/MVA 8 MJ/MVA 2 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F? 0.5 F 1 F 2 F 4 F 0.5 F 1 F 2 F 4 F ANSWER DOWNLOAD EXAMIANS APP
Power Systems Asynchronous tie line is a AC transmission line None of these DC transmission line either 1 or 2 AC transmission line None of these DC transmission line either 1 or 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line operating at Vs = 400 kV and has ABCD parameters A= D = 0.8∠0°, B = 100∠90° Ω, C = 0.5*10^-6∠90° ℧. Find the shunt reactor required for compensating ferranti effect? 2000 Ω 3000 Ω 500 Ω 1500 Ω 2000 Ω 3000 Ω 500 Ω 1500 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peak load power plants is/are nuclear plants pumped storage plant both 1 and 2 diesel plant nuclear plants pumped storage plant both 1 and 2 diesel plant ANSWER DOWNLOAD EXAMIANS APP
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