hai, i want to test 0v-115v-230v to 15v-0v-15v center tape transformer.actually i need 15v ac for power supply input.but i have 230v ac source only available.how i get 15v ac use of 230v ac input.pls help me.
Use the 230V to 15-0-15V step down transformer to get 15V AC.
This AC can be rectified and filtered using a full wave rectifier and a capacitor filter.
Are you telling that high voltage side has three terminals naming 0,115,230V and low voltage is15-0-15V?
In that case you can use the 0 and 123V terminals to input 230V AC.
On primary side use 230V-0V terminal, middle is for 110V I suppose without picture, on secundar side use middle wire and one of other wire its 0V-15V. If you use 15V and 15V wires (15V-0-15V) you will get 30V AC.
On primary side use 230V-0V terminal, middle is for 110V I suppose without picture, on secundar side use middle wire and one of other wire its 0V-15V. If you use 15V and 15V wires (15V-0-15V) you will get 30V AC.
test DCR for primary and secondary windings, if DCR in the side is very higher than other side, the side is primary winding, you can identify from appearance, if the wire in the side is thinner than other side, the side is primary winding.