Hello Everyone,
I have some doubts and need some help with the below?
As per CEA(Central Electricy Authority) guidlines ,they state:
"The generating station shall not inject DC current more than 0.5% of full rated output of interconnection point"
We need to make sure that our on-grid inverter is not injecting any DC into the main grid.
Now for a design with a isolation transformer, there would be no DC injection.
For a transformer-less design with a series decoupling capacitor, there would be no DC injection.
For a transformer-less design without a series decoupling capacitor, there would be some DC injection.
My first thought was to put a clamp-on meter and check the DC current or maybe put a DC current probe and check it on an oscilloscope?
Is this the right way?
Are there specialized instruments which measure the DC current injected into the main grid?
Thanks and regards,
AK
I have some doubts and need some help with the below?
As per CEA(Central Electricy Authority) guidlines ,they state:
"The generating station shall not inject DC current more than 0.5% of full rated output of interconnection point"
We need to make sure that our on-grid inverter is not injecting any DC into the main grid.
Now for a design with a isolation transformer, there would be no DC injection.
For a transformer-less design with a series decoupling capacitor, there would be no DC injection.
For a transformer-less design without a series decoupling capacitor, there would be some DC injection.
My first thought was to put a clamp-on meter and check the DC current or maybe put a DC current probe and check it on an oscilloscope?
Is this the right way?
Are there specialized instruments which measure the DC current injected into the main grid?
Thanks and regards,
AK