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Mains transformer core is earthed?
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Topic: Mains transformer core is earthed? (Read 233 times)
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Faringdon
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Posts: 2111
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Mains transformer core is earthed?
«
on:
Yesterday
at 07:31:12 am »
Hi,
Is the core of this isolation transformer earthed?
https://www.screwfix.com/p/carroll-meynell-3000va-intermittent-isolation-transformer-230v-230v-blue/320HV?kpid=320HV&cm_mmc=Google-_-Datafeed-_-Electrical%20and%20Lighting?kpid=KINASEKPID&cm_mmc=Google-_-TOKEN1-_-TOKEN2&gad_source=1&gclid=EAIaIQobChMIurKz6pO_hwMVZo9QBh2u4gyPEAQYASABEgJZOvD_BwE&gclsrc=aw.ds
https://www.carroll-meynell.com/product/isolation-transformer-230-230v-3kva-cm3000-230-euro/
Earth goes into it...do you know what that earth connects to?
& Why is it so noisy when its switched ON, even with its secondary open?
(ie noisy electrically to other equipment plugged in on the same phase, making it malfunction)
«
Last Edit:
Yesterday
at 07:33:40 am by Faringdon
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'Perfection' is the enemy of 'perfectly satisfactory'
techneut
Regular Contributor
Posts: 91
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Re: Mains transformer core is earthed?
«
Reply #1 on:
Yesterday
at 07:01:27 pm »
My guess is that there is a shield between primary and secundary windings that is earthed. I have a 2A isolation transformer and you can realy hear the dumph when it is powered on. The magnatising current with it's mgnetic field is my guess.
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