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Thank you for choosing Schneider Electric products and services.
Welcome to the demo session of the VarPlus Logic Power Factor Controller.
The objective of this session is to enable the inexperienced users
to perform the basic configuration to commission the Power Factor correction
controller.
Please refer to the user manual carefully
to understand the safety aspects of the installation and commissioning.
It is important that you are competent to do the wiring.
Basic knowledge of electrical networks and safety measures are desired.
This is the default page of the controller,
and you can scroll through the different pages by pressing the navigation keys.
There are four navigation keys.
The Up arrow key is to increase the value and select the menu items.
The Down arrow key is to decrease the value and select the menu items.
The Right or OK arrow key is to open a menu, move the cursor to the right,
and for settings.
The Left or Escape arrow key is to move the cursor to the left
and to exit a menu.
Let's look at each menu with a brief description.
There are five menus on the controller.
Info, auto, manual, setup, and alarm.
They can be accessed by pressing the Up and Down arrow keys.
Let us go back to the basic setup menu.
By pressing the Down arrow key, we can reach the Setup menu.
Press the Enter key to enter the setup.
The controller will display Un 400 volts.
This is the default value of the rated voltage.
Press the Enter key again to change the rated voltage Un.
Change Un to the required value as per the system requirement.
Let's set it to 415 volts.
Use the Left and Right arrow keys to move to the left or the right digits.
Use the Up and Down arrow keys to increase or decrease
the value of a digit.
Press the OK key to save this value.
Press the Down arrow key to go to the next parameter, Ct.
Here we will set the current transformer ratio.
By default, this value is set to 1.
Based on the current transformer used, calculate the current transformer
ratio.
Enter the current transformer Ct ratio using the arrow keys
as explained in the earlier step.
Let's set the current transformer ratio to 20.
Press the OK key to save this value.
Change the value of the power factor as per the customer requirement
using the Up, Down, Left, and Right arrow keys.
Let's set the power factor to 0.99 inductive.
Press the OK key to save the value.
Press the Up arrow key twice to go to the automatic initialization mode.
The screen will display AI and No.
This is the default setting.
Press the OK key.
Use the Up or Down arrow keys to toggle to yes.
The auto initialization will start.
It will check the wiring, phase and polarity,
and detect the connected steps.
The steps will be switched on and off one by one.
At the end of the auto initialization, the controller
goes to automatic mode and displays auto.
If AI fails, AI/ABRT will be displayed.
In this case, relaunch AI.
If successful, the AI/ABRT alarm message will disappear and the PFC off message
will be displayed.
Go to the menu 100 and change PFC Off to On.
The controller will display the auto mode.
Go to the Setup 100 screen by pressing the Down arrow key.
Press the OK key to enter the 100 menu.
Press the Down arrow key repeatedly till you reach the Out sub-menu.
Press the OK key to enter the Out menu.
Here we will check whether all the steps are in the auto mode.
The first step shows F off, which we will change to the auto mode.
Press OK.
Now we will check the other steps.
We can see that all other steps are showing the auto mode.
This is the consistency check.
This will complete the basic setup.
If the auto initialization fails, then we have to execute a manual step setup.
Go to the Setup menu.
Next, go to the 3 menu.
We will have to enter the PIN 242 and press OK to go to the 300 menu.
Press the OK key.
Press the Down arrow key to go to the item 308 step recognition.
Press OK.
Press the Escape key.
Go to the Step Database in the Setup menu 400.
Press the Enter key.
Go to the sub menu 402 to enter the step nominal value for each step.
For step number one, we will set the value to 10 kVar.
Follow the same sequence for the remaining steps.
Go to the sub-menu 403 to set up the out status for each step.
The connected steps will be in auto mode.
Now step one shows auto.
Check the other steps.
Now go to the menu item 100.
Change PFC status from off to on.
This concludes the manual setup.
We will now demonstrate the commissioning
for the medium voltage installations.
It is expected that the current transformer
and the potential transformer inputs are connected to the VarPlus Logic
Controller.
Go to the Item Setup menu.
Go to the sub-menu 300.
Enter the pin 242.
Go to the menu 315 HV configuration.
Select Yes.
When you select this, the switching interval 305 is changed to 120 seconds.
The automatic step recognition 308 and the step exchange 307 are disabled.
The discharge time 401 is changed to 600 seconds.
Go to the sub-menu 302 to enter the target Cos phi 1.
Let's set the power factor to 0.96 inductive.
Go to the sub-menu 201 nominal voltage phase to phase.
Enter the system voltage.
Let's set the system voltage to 11 kv.
Go to the sub-menu 202 CT factor.
Enter the current transformer ratio.
Let's set the current transformer ratio to 100.
Go to the sub-menu 203 VT factor.
Enter the potential transformer ratio.
Let's set it to 26.
Go to the sub-menu 400.
Go to the sub-menu 402, step nominal value.
Enter the step value for the first step as 300 kVar.
Similarly, enter values for the remaining steps.
This will complete the configuration of the VarPlus Logic
for medium voltage installation.
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