Power Systems Objective Questions & Answers – Set 3

To reduce the radio interference which line is/are transposed?

In which of the following configuration power transferability is higher?

A 3 layer, total diameter of an ACSR conductor is 5 cm. Find the diameter of each strand?

The total number of strands(N) is concentrically stranded cable with total annular space filled with strands of uniform diameter is given by (if x is number of layers)

Bundled conductors in EHV transmission lines

The internal flux linkage due to internal flux of a conductor is

The skin effect shows that

Skin effect depends on

If the frequency is increased, then skin effect will

If skin depth is more, then skin effect is

Proximity effect is more in case of

Proximity effect depends on

Skin effective is more in case of

Apart from the skin effect the non uniformity of the current distribution is also caused by

Transmission lines are transposed to reduce

In transmission lines distribution constants are

Aluminium is now most commonly employed conductor material in transmission lines than copper because

The skin effect of conductor will increase when

ACSR means

The inductance of single phase two wire line is given by

If the diameter of the conductor is increased

Due to proximity effect, the increase in conductor resistance is not negligible in

The fact that current density is higher at the surface when compared to centre is known as

The presence of earth in case of overhead lines

The term self GMD is used to calculate

Inductance of transmission line will decrease when

If we increase the spacing between the phase conductors, the line capacitance

If we increase the length of the transmission line, the charging current

In triangular configuration, inductance and capacitance values are ------ and ------ respectively

If we increase the spacing between the phase conductors, the value of line inductance