# Bundled conductors are employed to

1.  Reduce the short circuit current

2.  Improve system stability

3.  Decreases system stability

4.  Increase the short circuit current

4

Decreases system stability

Explanation :
No Explanation available for this question

# An overhead   line having a surge impedance of 400 is connected in series with an underground cable having a surge impedance of 100 ?. If a source of 50 KV travels from the line end towards the line- cable junctions, the value of the transmitted voltage wave at the junction is

1.  30 KV

2.  20 KV

3.   80 KV

4.  -30 KV

4

20 KV

Explanation :
No Explanation available for this question

1.  Takes negative VAr at sending end and zero VAr at receiving end

2.  Takes positive VAr at sending end and zero VAr at receiving end

3.  Has flat voltage profile and unity power factor at all points along it.

4.  Has sending end voltage higher than receiving end voltage and unity power factor at sending end

4

Takes negative VAr at sending end and zero VAr at receiving end

Explanation :
No Explanation available for this question

# The X:R ratio of 220 KV line as compared t0 400 KV line is

1.  Greater

2.    smaller

3.   equal

4.   it could be anything

4

smaller

Explanation :
No Explanation available for this question

# If a line is 100% series compensated, it may result into series resonsnce at power frequency of

1.  50 Hz

2.  100 Hz

3.  150 Hz

4.   none of these

4

50 Hz

Explanation :
No Explanation available for this question

# A 60 Hz, 320 km lossless line has sending end voltage 1.0 p.u. The receiving end voltage on no load is

1.  1.1  p.u

2.  1.088 p.u

3.  1.116 p.u

4.   none of these

4

1.088 p.u

Explanation :
No Explanation available for this question

# With 100 % series compensation of lines

1.  The circuit is series resonant at power frequency

2.  Low transient voltage

3.  High transient current

4.  Both a and c

4

Both a and c

Explanation :
No Explanation available for this question

# For certain geometry and operating voltage of the uncompensated transmission line, the ratio of power transfer capability to the surge impedance loading with increase in length

1.  Increases

2.   remains unchanged

3.  decrease

4.  uncertain

4

decrease

Explanation :
No Explanation available for this question

# For any fixed degree of inductive shunt compensation, additional  series capacitive compensation

1.  Increases effective length of line

2.  Increases virtual surge impedance line

4.  None of these

4

None of these

Explanation :
No Explanation available for this question

# A loss less line terminated with its surge impedance has

1.  Flat voltage profile

2.  Transmission line angle is greater than actual length of line

3.  Transmission line angle is less than the actual length

4.  Both a and b

4