The maximum rms current of an SCR is 50 A. For a 120° sine wave conduction the form factor (FF) = 1.878 Find the average on-state current rating (ITAV).

To find the average on-state current rating (ITAV) for an SCR under the given conditions, you can use the following relationship between the average current, rms current, and form factor:

[

ITAV = frac{I_{rms}}{FF}

]

Given:

– (I_{rms} = 50 , A)

– (FF = 1.878)

Now, substituting the values into the formula:

[

ITAV = frac{50 , A}{1.878} approx 26.67 , A

]

Therefore, the average on-state current rating (ITAV) is approximately 26.67 A.