1.  0.306 p.u.

2.  0.33 p.u.

3.  0.318 p.u

4.  0:328 p.u.

4
Correct Answer :

0.306 p.u.


Explanation :
No Explanation available for this question

1.  protects terminal equipment against travelling surges

2.  protects transmission line against direct lightning stroke

3.  suppresses high frequency oscillations in the line

4.  reflects back travelling wave aproaching

4
Correct Answer :

protects terminal equipment against travelling surges


Explanation :
No Explanation available for this question

1.   long overhead line is switched off

2.  bank of capacitors is switched off

3.  transformer on no load is Switched off

4.  heavy load, is switched off

4
Correct Answer :

transformer on no load is Switched off


Explanation :
No Explanation available for this question

1.  direct strokes of lightning

2.  power frequency of over voltages

3.  over voltages due to indirect lightning stroke

4.  over currents due to lightning stroke

4
Correct Answer :

over voltages due to indirect lightning stroke


Explanation :
No Explanation available for this question

1.  second harmonic current

2.  third harmonic current

3.  fifth harmonic current

4.  seventh harmonic current

4
Correct Answer :

fifth harmonic current


Explanation :
No Explanation available for this question

1.  produce of rated breaking current (kA) and rated voltage (kV)

2.  product of rated symmetrical breaking current (kA) and rated voltage (kV)

3.  product of breaking current (kA) and fault voltage (kV)

4.  twice the value of rated current (kA) and rated voltage (kV)

4
Correct Answer :

produce of rated breaking current (kA) and rated voltage (kV)


Explanation :
No Explanation available for this question

1.  excitation control

2.  phase shifting transformer

3.  single pole switching of circuit breakers

4.  increasing the turbine valve opening

4
Correct Answer :

excitation control


Explanation :
No Explanation available for this question

1.  100MJ

2.  400JM

3.  800MJ

4.  12.5MJ

4
Correct Answer :

800MJ


Explanation :
No Explanation available for this question

1.  maintain voltage- at the rated voltage level

2.  maintain frequency exactly at 50 Hz

3.  maintain a spinning reserve margin at

4.  maintain synchronous between machines and on external tie lines

4
Correct Answer :

maintain a spinning reserve margin at


Explanation :
No Explanation available for this question

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