Yahi baat Maine kitna samjhaya jo stabilizer kartehain ki window area aur cross sectional area transformer ki power rating aur minimum input voltage se related hain. Lekin unhone kuchh bhi calculation na karke dekh kar 5/10/15/20 kva ki automatic stabilizer bhi banate hain fir 90v minimum input voltage me. Aur unka wohi 5 kva ka stabilizer jiska output power 3.2 kw hota hai ek 746watt motor ko nehin chala pati hai. Aur puchh ne se bolte hain ki wo surf 10A ki input current hi le payega. To unka stabilizer sirf(90×10×0.8) =720 watt input power lega aur (720×0.8) =576 watt hi deliver karega to wo log kaise utna jhut bolte hain aur ye log bhi kabhi bhi iske bare me kuchh bhi complain nehin kiya aai tak. Me bhi bolta tha ki Meta ai app se puchho. Lekin aap ne jo bhi kaha 100% sahi hai. Pehle calculation baad me core selection aur bobbin aur swg wire selection.
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.
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?
Power rating aur minimum input voltage se aur wo terminal me kitna minimum input voltage diya jayega ya output liya jayega. Kyunki ac me input Power in watts= Vmin×Imax×o.8 hi hota hai. Aur output power in watts=0.8×power input ineatts hi hota hai. = output minimum voltage× output current ×0.8 hi hai.
I would ask if you have an idea I bought last week a dead old brass doorbell on which is indacated 12 ac volts. The electricen said that the solenoid has a cooper wire of 0.5 mm and about 880 turns. But when i applied 12 ac volts the bell hardly vibrate and didn't make sound. I graduly increased the ac voltage until 30 ac volts where the bell function well. My questions are : 1/ Can I decrease the number of turns to let the bell function under 12 ac volts and how many turns. 2/ Can I function the bell under 220 ac volts and how to calculate the thickness of the cooper wire and the number of turns. Best regards.
Very nice information.. Ek cheese puchni thi...Apparent power ke according transformer core and bobbin size kaise calculate karte hai. Jaise 5KVA ke transformer ke liye core size or bobbin size Kya Hogi..
