Johanno Wibowo

13 Questions 3 Answers 0 Followers

Questions related from Johanno Wibowo

If fiber optic is used in HV substation for communication, do we still need line trap?

What is the function of line traps other than communication?

09 September 2018 10,004 2 View

Is it correct to use Thevenin's theorem to calculate current in a particular branch in a power system?

Let say I want to know the current flowing through a new line connecting bus A and bus B. I generate a Thevenin equivalent circuit of the system seen from bus A - B. Is this legitimate?

12 December 2017 1,790 3 View

What is flux linkage?

In deriving transmission line, we derive the flux linkage of each conductor. What does this mean? Can you give intuitive explanation?

06 June 2017 9,520 0 View

How to automatically iterate generator location in power system analysis software?

Let's say I want to optimize a new generator location in an existing power system. I need to know how's the system efficiency, reliability, etc with the new generator. Can I use ETAP or...

10 October 2016 3,835 6 View

What is the definition of repair rate in Markov state space analysis?

There is a confusion in defining repair rate. From Richard Brown's book, Power Distribution Reliability, it is said that repair rate is the inverse of repair duration, which is defined as the mean...

09 September 2016 10,059 4 View

What are the requirements to make a distribution grid able to operate in intentional islanding mode?

Let's say we have an ordinary radial distribution system. Now we want this network to be able to run intentional islanding with diesel generators connected to the end of the network. What are the...

08 August 2016 5,916 5 View

What is the best protection scheme for radial or weekly meshed distribution system?

If we don't take cost into account, is using sectionalizers is always better than using two CB? What if we consider the cost?

04 April 2016 8,481 3 View

What is acceleration factor in load flow study?

How does it affects the accuracy and convergence of a load flow study? Why is it typically 1.6? Does it have something to do with the golden ratio?

04 April 2016 6,515 9 View

How does line charging VAR affects the result of load flow study?

Is it significant in distribution system?

04 April 2016 4,124 3 View

What is the procedure to generate distribution system in Simulink automatically?

What is the procedure to generate distribution system in Simulink automatically from network data as shown in this video? https://www.youtube.com/watch?v=UDBstJnqsz0

03 March 2016 9,280 0 View

I have built a power distribution system in Simulink. What are the procedures to randomize DG position in order to optimize the system reliability?

I'm new to Simulink. How do I perform DG optimization study in Simulink? In Matlab, I would just use "for" and place the DG at random bus. How to do the same in Simulink?

03 March 2016 1,890 1 View

How to randomize DG location in Simulink?

I have a power distribution system model in Simulink. I want to optimize DG location. How to randomize its position?

03 March 2016 8,945 4 View

Can backward-forward sweep load flow algorithm be applied to non-radial distribution system?

For example for weakly meshed or loop distribution system.

03 March 2016 3,366 5 View