Week 14 (12 May - 18 May 2014)

 On this week, is the last week for the FYP2. I can conclude for this project is the objective is achieved. Why we need this calculation because it can provide the load with a suitable voltage (avoid excessive Vdr) and make the equipment continuously under full load without being damages. The "Development of Interactive Electrical Network Design  (Cable) using Matlab" is easy because the user key in all requirement to get the data that they needed and when I structure the GUI, I follow the flow which part is the first thing to calculate before get the proper cable sizing.

Benefit of this project is:
1. For further recommendation its might be easy for lecturer for subject Electrical system in Building to use this development for teaching session. 
2. It's also useful for the consultation companies that are needed the "service" of this calculation for the wiring.
3.  Also can contribute to safety environment for the resident building when user put and select the either requirement, the system will give warning of the wrong selection and notify the user what should be used.

Problem encounter: The problem that encounter during the simulation part is, I'm the beginner user for GUI, so it make me hard to start with MATLAB. Another problem is, the simulation part will appear error once I run the simulation, but its for temporary situation. Example:

Below is my Final Year Project 2 poster:

yuhuuu!!!!

During presentation Final Year Project2

Week 13 (5 May - 11 May 2014)

Title: Project progress (FYP 2)
Objective: Result
Content: On week 13, I continue with calculation of Voltage drop. For voltage drop I call back all the value that I get which is the cable size, IB, Length and also the TVDR. The formula that I use is:

 Vdr = (TVDR x P.factor) x IB x Length / 1000

Voltage drop is a excessive voltage drop in a circuit can cause the electrical equipment will be damage or burn. It causes the load to work harder with less voltage pushing the current. If current and impedance increase, so the voltage drop also increase.The %voltage drop is the permissible value of voltage drop that only has along the cable. Based on IEE regulation there is no large more 4% per cable. More length the cable, more voltage drop will have.

The result that I got from all the calculation and the data that user key in is:

  Reset button is used when the user want's to clear back all the data that they key in. The coding is:

set(handles.edit1,'string','');
set(handles.edit2,'string','');
set(handles.edit3,'string','');
set(handles.edit4,'string','');
set(handles.edit7,'string','');
set(handles.edit8,'string','');
set(handles.edit9,'string','');
set(handles.edit10,'string',''); ...........>>>>>>and so on...

When cursor is brought to button, the tooltip will appear to let user know what is it. The coding is:

B = sprintf('It,min= CURRENT CARRYING CAPACITY **Click to get the value of It,min');
set(handles.pushbutton3,'TooltipString',B)

Week 12 (21 April - 27 April 2014)

Title: Project progress (FYP 2)
Objective: Result
Content: Week 12,I start the coding to calculate the Cable size which is recoding to the reference that I use (table 4D1A and table 4D1B). The coding is:

box7str = get(handles.edit7,'string'); /// edit7 is the box where the value of It,min appear
box7num = str2double(box7str);
if box7num >= 1 & box7num <= 12    /////based  data at Table, 1mm cable size the CCC is 13.5
    set(handles.text10,'string','>> Size cable that selected are = 1mm');
end

if box7num >= 1 & box7num <= 12 ///Based on Table 4D1B
    set(handles.text11,'string','>> TVDR is = 44');                       
 end

if box7num >= 13.5 & box7num <= 16 ///based  data at Table, 1mm cable size the CCC is 17.5
    set(handles.text10,'string','>> Size cable that selected are = 1.5mm');
end

if box7num >= 13.5 & box7num <= 16  ///Based on Table 4D1B    
      set(handles.text11,'string','>> TVDR is = 29');                         
end
 
if box7num >= 17.5 & box7num <= 23 ///based  data at Table, 1mm cable size the CCC is 24
    set(handles.text10,'string','>> Size cable that selected are = 2.5mm');
end

if box7num >= 17.5 & box7num <= 23 ///Based on Table 4D1B   
  set(handles.text11,'string','>> TVDR is = 18');                         
end
 
if box7num >= 24 & box7num <= 31  //based  data at Table, 1mm cable size the CCC is 32
    set(handles.text10,'string','>> Size cable that selected are = 4mm');
end

if box7num >= 24 & box7num <= 31   ///Based on Table 4D1B
    set(handles.text11,'string','>> TVDR is = 11');                        
end

if box7num >= 32 & box7num <= 40  ///based  data at Table, 1mm cable size the CCC is 41
    set(handles.text10,'string','>> Size cable that selected are = 6mm');
end

if box7num >= 32 & box7num <= 40 ///Based on Table 4D1B
   set(handles.text11,'string','>> TVDR is = 7.3');                         
end
 
if box7num >= 41 & box7num <= 56 ///based  data at Table, 1mm cable size the CCC is 57
    set(handles.text10,'string','>> Size cable that selected are = 10mm');
end

if box7num >= 41 & box7num <= 56 ///Based on Table 4D1B
    set(handles.text11,'string','>> TVDR is = 4.4');                        
end
 
if box7num >= 57 & box7num <= 75 ///based  data at Table, 1mm cable size the CCC is 76
    set(handles.text10,'string','>> Size cable that selected are = 16mm');
end

if box7num >= 57 & box7num <= 75  ///Based on Table 4D1B
    set(handles.text11,'string','>> TVDR is = 2.8');                         
 end

Based on the It,min, the value is 15.1156Amp so the cable size are selected are 1.5mm. It's all based on the coding above. When the It,min is>13.5 & <=16, the cable size is 1.5mm are selected. The TVDR also:

if box7num >= 13.5 & box7num <= 16 //based  data at Table, 1mm cable size the CCC is 17.5
    set(handles.text10,'string','>> Size cable that selected are = 1.5mm');
end

if box7num >= 13.5 & box7num <= 16  ///Based on Table 4D1B    
      set(handles.text11,'string','>> TVDR is = 29');                         
end

Based on the It,min, the value is 30.231Amp so the cable size are selected are 4mm. It's all based on the coding above. When the It,min is>24 & <=31, the cable size is 4mm are selected. The TVDR also:

if box7num >= 24 & box7num <= 31///based  data at Table, 1mm cable size the CCC is 32
    set(handles.text10,'string','>> Size cable that selected are = 4mm');
end

if box7num >= 24 & box7num <= 31   ///Based on Table 4D1B
    set(handles.text11,'string','>> TVDR is = 11');                        
end


***CCC = Current carrying capacity which is the current that allowed go through the cable.

Week 11 (14 April - 20 April 2014)

Title: Project progress (FYP 2)
Objective: Result
Content: Week 11, continue to get the value of It,min. It,min is the current carrying capacity which is the value of current that allowed to go through the cable.. The calculation will based on the formula below:

It,min = IN @ IB / (CaCgCi) 

Ca= Ambient Temperature
Cg= Grouping factor
Ci= Thermal insulation
Since the Thermal insulation not use,  it consider as 1.
When user already select the correction factor, when click the It,min button, the value will appear at coloring box.

 

To appear the value, I used the same coding like when I want to calculate the IB. The coding at push button It,min is:

Ambient_temperature = str2double(get(handles.edit12, 'String'));
Grouping_factor = str2double(get(handles.edit13, 'String'));
IB = str2double(get(handles.edit1, 'String'));
Calculate = IB/(Ambient_temperature*Grouping_factor);   
str = num2str(Calculate);
set(handles.edit7,'String', str);

The coding at coloring box that the value of It,min will appear:

str = num2str(It);
set(handles.edtIt, 'String', str);

Week 10 (7 April -  13 April2014)

Title: Project progress (FYP 2)
Objective: Result
Content: Week 10, it's still in progress. Continue with the conductor selection. The other is cable core and I only choose for singe core.

At the "conductor calculation" side, that's the only information that I take. All the information is depends on the reference that I used. Done with the material and so on, there has another parameter that user need to consider which is correction factor. The correction factor is consist Ambient temperature, Grouping Factor and Thermally insulating factor.

For Ambient Temperature, I used the 30deg C until 40deg C, which is the normal temperature in Malaysia. The data that I take from Table 4B1(book Requirement for Electrical Installation). Once the user select the Ambient temperature, the rating factor of that temperature will appear at empty box beside. Ambient Temperature is effect the cable that carrying the load, more heat required more higher the Ambient temperature.

 

The Table at shown the data that I used for Ambient temperature. When user choose 30deg C it will appear 1.00 and so on.

For Grouping factor, I used the grouping 1 until 5. Actually the grouping factor is up to 20 grouping of cable at 1 place. The grouping factor means the cable that are touching each other through the same path. It's will effect the heat of the cable which is heat will less when cable are alone and the heat will increased when cable bundled together. Same condition with Ambient temperature, the value of rating factor will appear at empty box when user select the grouping.

The Table 4C1 that I use to get the rating factor for Grouping factor.

The result will appear like figure below:

The coding that I use to get the rating factor is:

Ambient_temperature=get(handles.popupmenu1,'value'); /// popupmenu1 is the selected///

switch Ambient_temperature
    case 1
       set(handles.edit12,'string','1');
    case 2
      set(handles.edit12,'string','1.00');  /// edit 1 is the box that will appear the rating factor///
    case 3
      set(handles.edit12,'string','0.94'); 
     case 4
      set(handles.edit12,'string','0.87');
     
end

Coding for grouping factor:

Grouping_factor=get(handles.popupmenu2,'value'); /// popupmenu2 is the selected//

switch Grouping_factor
    case 1
       set(handles.edit13,'string','1');
    case 2
      set(handles.edit13,'string','1.00');
    case 3
      set(handles.edit13,'string','0.80');  ///edit 13 is the empty box that appear the value of///
    case 4
       set(handles.edit13,'string','0.70');
    case 5
      set(handles.edit13,'string','0.65');
    case 6
      set(handles.edit13,'string','0.60');  
     
end

Week 9 (31 March - 6 April 2014)

Title: Project progress (FYP 2)
Objective: Result
Content: In week 9, I continue to the other parameter that are needed to select the proper cable sizing. The Reference that I use is from table 4D1A and 4D1B (book Requirements for electrical Installations).

This is the Table 4D1A. In the data selected, that only the data that I take which is enclosed in conduit on a wall or in trunking. Single phase and the conductor cross-sectional area only for 1mm to 16mm. I choose that because  we can see nowadays residence mostly use the electrical system in building using conduit on wall for their house. So, the data selection is based on that situation.

From that table I can come out with the structure of the conductor information, consist of material cable, method of installation, types of cable and the cables core. Can see at figure below:

Figure shown the material cable which consist of thermoplastic(PVC), thermosetting, fire rated and also the mineral insulated. Refer to the data (Table 4D1A) so the material cable that I only use is 70deg C Thermoplastic (PVC).

For method of Installation, I only put the general method which is clipped direct, in conduit and trunking. Actually, there has two more of the method example in tray and conduit at thermally insulating wall. If I take all the data it will be much more of simulation coding. So, I refer to my Supervisor FYP, I agree to use only that data. 

Types of cable is consist of two types general use which is cooper and aluminum.

Week 8 (24 March - 30 March 2014)

Title: Project progress (FYP 2)
Objective: Result
Content: In week 8, I refer more how I want to write the coding to get the value of IB. The solution is

power = str2double(get(handles.edit5, 'String'));
efficiency = str2double(get(handles.edit6, 'String'));
voltage = str2double(get(handles.edit2, 'String'));
loadw = str2double(get(handles.edit4, 'String'));
IB = loadw/(voltage*power*efficiency);
str = num2str(IB);
set(handles.edit1,'String', str);

The coding is put at the button function. 

 For the value appear, the coding is:

 str = num2str(IB);

set(handles.edtIB, 'String', str);

The coding is to show the value of IB at the coloring box, beside IB box. The value will appear when the simulation will do the calculation at coding that I put at IB button above, and it will call the value (done calculation) appear at coloring box. The result we can see at the figure below: