Discussions Populaires Dans la Communauté Gestion de l'alimentation

What is the power factor of a 3 phase induction motor operating at no load and connected to rated voltage?‎

Réponses:

7

Adeptes:

9

Vues:

42

Vote Count:

2

The main drawback(s) of underground system over overhead system is/are-?‎

The main drawback(s) of underground system over overhead system is/are- A. Exposure to lighting B. Heavy initial cost C. Exposure to atmospheric hazards such as smoke,‎ ... Voir Plus

Réponses:

7

Adeptes:

7

Vues:

1107

Vote Count:

1

Transmission and distribution of electric power by underground system benefits?‎

 Transmission and distribution of electric power by underground system is superior to overhead system in respect of- A. Appearance and public safety B. Maintenance cost‎ ... Voir Plus

Réponses:

1

Adeptes:

1

Vues:

529

Vote Count:

1

Why Delta Star transformers are used for Lighting loads?‎

Réponses:

6

Adeptes:

6

Vues:

399

Vote Count:

1

What is HCT and LLOP? Why is a DG set to stop automatically by PMU under HCT and LLOP alarms on cellular towers? What do these alarms indicate? ‎

Réponses:

1

Adeptes:

1

Vues:

8090

Vote Count:

1

Why open access in Transmission is necessary?‎

Réponses:

1

Adeptes:

1

Vues:

73

Vote Count:

1

A buchholz relay is used for:?‎

A. Protection of a transformer against all internal faults  B. protection of a transformer against all external faults C. both1 and2 D. niether1 nor2‎

Réponses:

4

Adeptes:

5

Vues:

20

Vote Count:

0

What is meant by knee point voltage of a current transformer?‎

Réponses:

3

Adeptes:

3

Vues:

17

Vote Count:

0

What is the difference between Synchronous generator and Asynchronous generator?‎

Réponses:

3

Adeptes:

3

Vues:

15

Vote Count:

0

By increasing the transmission voltage to double of its original value the same power can be dispatched keeping the line loss-?‎

  A. Equal to original value B. Half the original value C. Double the original value D. One fourth of original value‎

Réponses:

2

Adeptes:

2

Vues:

17

Vote Count:

1