Transformer reading

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Transformer reading #17535 07/16/16 08:07 PM
Joined: Nov 2013 Posts: 10 M micmerci stranger
micmerci stranger M Joined: Nov 2013 Posts: 10	I have a transformer that is reading only 1.3 ohms between h1 & h2 on primary side. The reading increases .1 ohm as I measure between h1 and other taps as expected. My question is, isnt this Reading way too low, indicating a short? Thanks in advance.

Re: Transformer reading micmerci #17538 07/16/16 11:30 PM
Joined: Jul 2016 Posts: 66 Nj-NYC J JimboNJ journeyman
JimboNJ journeyman J Joined: Jul 2016 Posts: 66 Nj-NYC	Is it burnt ? Are you blowing fuses before it?

Re: Transformer reading JimboNJ #17539 07/17/16 12:17 AM
Joined: Nov 2013 Posts: 10 M micmerci stranger
micmerci stranger M Joined: Nov 2013 Posts: 10	Trips breaker as soon as starter kicks in. Ended up being fault contactor defective. I guess the transformer reading was accurate

Re: Transformer reading micmerci #17542 07/17/16 01:19 PM
Joined: Feb 2013 Posts: 800 ohio J john jay old hand
john jay old hand J Joined: Feb 2013 Posts: 800 ohio	Transformers and other windings use Inductive Reactance after the Voltage is applied. The Ohmic Value with no Volatge is inherently low.

Re: Transformer reading john jay #17569 07/19/16 07:18 PM
Joined: Jan 2010 Posts: 671 st.louis mo D danzeitz addict
danzeitz addict D Joined: Jan 2010 Posts: 671 st.louis mo	Ive chased a couple of shorts back to a transformer I had forgotten to unhook while looking for the cause of a blown fuse.

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