Yahan 50 v input aur 3 kva output ke liye aap ko (3000/0.8)=3750-va Ka input dena Hoga kyunki achhe quality ka transformer Ka efficiency 80% hi hai. To input current (3750/50)={375/5)=75A hi hoga . Aur (W×A)=3.75×18=68 - sq sq inch hi hai ,jiske liye koi bhi E,I core suitable nehin hai ye 7/8 no kaise soche Hain aap ne?
What specifications should I need to make a step-down transformer 230v ac to 130v ac of 1.5 kw/ampere? e.g. * core and bobbin size, * wire gauge and turns for both primary and secondary windings. * Any others things which I forgot to mention here.
