Question

Which of the following is/are correct?

AC network analyzer is used to solve Status

i. Load flow problems

ii. Short circuit problems

iii. Stability problems

1. ii and iii
2. Only iii
3. i, ii and iii
4. Only i

Answer 1

Correct Answer - Option 3 : i, ii and iii

AC Network Analyzer:

• AC network analyzer is a technique which used for solving the status of Load flow problems, Short circuit problems and Stability problems in electric power system.
• A network analyzer system was essentially a scale model of the electrical properties of a specific power system.
• Generators, transmission lines, and loads were represented by electrical symbols with representative values in proportion to the model of the system.
• Network analyzers did indirectly simulate the dynamic effects of the load.
• Instead, the analyzer would be used to solve dynamic problems in a stepwise fashion, first calculating a load flow, then adjusting the phase angle of the machine in response to its power flow, and re-calculating the power flow.