Author Topic: Transformer Help!  (Read 684 times)

Offline terfyo

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Transformer Help!
« on: November 20, 2019, 21:04 »
Hello all gurus,

Need some help on this transformer.
How should I wire it?

I need the output of 280V/0.08A and 6.3V/2A.

Please advise starting from the incoming power from the IEC inlet.

Thanks in advance.
TL

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Offline pcking

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Re: Transformer Help!
« Reply #1 on: November 20, 2019, 22:19 »
Just follow the label on the trans.

Primary
IEC - Live and natural the 2 red wires. Earth is the single yellow.

Outputs all are the same coloured pairs.

Secondary
6.3V/2A - White pair

280V/0.08A - Yellow pair

However, the safest bet is to use a DMM to double check the secondary voltages after connected to the Primary to AC mains.
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Offline LancerCK

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Re: Transformer Help!
« Reply #2 on: December 02, 2019, 14:53 »
Do take note of the rated input voltage of the transformer is 220v. As our incoming is between 235v to 240v, you might get about 6.73v and 299v (without load) on the output respectively. A 6.8% increment. May not be too much of a concern for the electronics, but bias might be affected.