I have a multiple-winding transformer with the following configuration:
- primary: 230V
- secondary: 2x 10-12-15V
- frequency: 50Hz
- power : 66VA
- current: 2x 2.2A
As far as I can understand from its specs the connection should be done like this:
- the primary coil should be connected to the main's AC by using the pair 4-7
- for the secondary coils we can connect the pin as following:
- to get a 10VAC we may use the pair 9-12 or pair 2-17
- to get a 12VAC we may use the pair 9-13 or pair 2-18
- to get a 15VAC we may use the pair 9-14 or pair 2-19
I think it's obvious how to get a 10VAC or 2x10VAC from this transformer, right? The same apply for the 12/15 VAC outputs.
I know that in general we can connect these secondaries either in series or in parallel (thus increasing the secondary voltage or the current rate).
So my questions are:
- I'm wondering if it's safe to assume that by connecting the pair 9-13 in series with 2-18 I could expect to get a 24VAC. The same for 9-14 with 2-19 which should give a 30VAC.
- It is safe to assume that by connecting the pin 9 to 13 then 13 to pin 2 I would get a 24VAC between pins 9-18 ?
Assuming that the both questions above would get a YES answer, what else should I know before doing that? Any tips?