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G6fylneil · 25th Jan 2023, 2:01 pm

I used the L, N, and E designations because my transformer is fitted with a BS 1363 socket, its terminals are labeled L, N, and E. I think in the UK these days both Line and Neutral are considered "Live" as they are "connected to the source of supply". Internally the transformer has two red wires coming out of the potting, They are probably connected "the other way round" from Lucien's, and I get a lower voltages because the transformer has a lower VA. (or my meter has a higher input capacitance)
My 89IV measured 320pF from secondary to E, 277pF secondary to primary, and 540pF from primary to E, but that's also got 1.3M of 3-core flex on it.

25th Jan 2023, 2:01 pm	#32
G6fylneil Pentode Join Date: Sep 2011 Location: Coventry, West Midlands, UK. Posts: 210	Re: Isolator Transformer Query I used the L, N, and E designations because my transformer is fitted with a BS 1363 socket, its terminals are labeled L, N, and E. I think in the UK these days both Line and Neutral are considered "Live" as they are "connected to the source of supply". Internally the transformer has two red wires coming out of the potting, They are probably connected "the other way round" from Lucien's, and I get a lower voltages because the transformer has a lower VA. (or my meter has a higher input capacitance) My 89IV measured 320pF from secondary to E, 277pF secondary to primary, and 540pF from primary to E, but that's also got 1.3M of 3-core flex on it.