Power Systems Which following statement are not true for line parameters R, L, G and C of transmission line All of above. LC = μ ε and RG = σ ε. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. All of above. LC = μ ε and RG = σ ε. Both R and G depend on the conductivity of conductor forming the line. G = 1/R where G is conductance of line. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a three-phase system, when the loads are perfectly balanced, the neutral current is zero. two - thirds of maximum. one - third of minimum. one - third of maximum. zero. two - thirds of maximum. one - third of minimum. one - third of maximum. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Mho relay is used for the protection of medium length lines. no length criterion. long transmission lines. short length lines. medium length lines. no length criterion. long transmission lines. short length lines. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following transformer is used in sub station for operating a protective relay? distribution transformer auto transformer All of these capacitor voltage transformer distribution transformer auto transformer All of these capacitor voltage transformer ANSWER DOWNLOAD EXAMIANS APP
Power Systems The line currents of 3-phase supply are: IR = 3 + j 5 A IY =2 + j 2 A IB = -2 - j 1 A The zero sequence current will be 1 + j 4 A -2 - j 1 A 5 + j 7 A 1 + j 2 A 1 + j 4 A -2 - j 1 A 5 + j 7 A 1 + j 2 A ANSWER DOWNLOAD EXAMIANS APP
Power Systems Fault calculations using computer are usually done by Z bus method Y bus method either 1 or 2 None of these Z bus method Y bus method either 1 or 2 None of these ANSWER DOWNLOAD EXAMIANS APP
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