Ac Relay

So four things here, 1. Why 270 volts peak ac? I could understand 170 as that is 120 rms ac. 2. The amount of turns on the transformer is unrealistic, yes mathematically it works, but in reality this would never work. 3. If you set this up this way you need to lower the resistance of the resistor. Right now it doesn't work because there isn't enough of a voltage drop across the relay, so lower the resistance or get rid of it. In real life you would want to make sure the relay was rated at this voltage, and the resistor have the right wattage rating. 4. The led needs a resistor in series with it so your driving it with constant current.

@justinmh I see you know a lot, can you tell me if this transformer works? And if so that size would be approximately

270/1.414=190 volts. Which is the voltage of a loaded delta highleg at 10% voltage drop.

10:1 means the primary has 10 times as many turns as the secondary. Its only a ratio, it doesn't describe the amount of overall turns.

@justinmh to be honest i put zero thought into the voltage and transformer ratio. I was just messing around.

@coryeh, ok fair enough, I just thought it should be stated that way you don't try to go build a transformer and only put one turn on it, and expect to to work. @fernando remember for a transformer the equation is v_out=(n_2/n_1)*v_in.