A 10 MVA, 11 kV alternator has positive, negative and zero sequence r – McqOptions

MCQOPTIONS

1.	A 10 MVA, 11 kV alternator has positive, negative and zero sequence reactance of 25%, 40%,10% respectively. The resistance that must be placed in the neutral such that zero sequence of fault current for a single phase to ground fault will not exceed the rated line current in ohms is
A.	2.66 Ω
B.	1.66 Ω
C.	12.1 Ω
D.	0.22 Ω
Answer» B. 1.66 Ω

Discussion

No Comment Found

Related MCQs

A 10 MVA, 11 kV alternator has positive, negative and zero sequence reactance of 25%, 40%,10% respectively. The resistance that must be placed in the neutral such that zero sequence of fault current for a single phase to ground fault will not exceed the rated line current in ohms is
_______ conductors are the latest trend of the extra high voltage lines.
The overall diameter of a stranded conductor if ‘x’ is the number of layers and each layer has a diameter ‘d’ will be
The number of the strands included in the stranded cables while implementing a similar cable equivalent of single strand should be ________
The end effect information is included in the inductance of a transmission line.
The inductance of the transmission line is do not contain effect of earth electric field geometry while the capacitances contain.
Effect of earth’s presence on the magnetic field geometry is _________________
Effect of earth is considered insignificant while calculating the inductance of a single phase transmission line.