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Topic Title: Humming RCD
Topic Summary:
Created On: 21 September 2017 10:18 PM
Status: Read Only
Linear : Threading : Single : Branch
 Humming RCD   - Nospark - 21 September 2017 10:18 PM  
 Humming RCD   - mapj1 - 21 September 2017 11:11 PM  
 Humming RCD   - kellyselectric - 22 September 2017 12:03 AM  
 Humming RCD   - MWalker86 - 22 September 2017 01:26 AM  
 Humming RCD   - Nospark - 22 September 2017 08:33 AM  
 Humming RCD   - Thripster - 22 September 2017 09:05 AM  
 Humming RCD   - Nospark - 22 September 2017 05:52 PM  
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 21 September 2017 10:18 PM
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Nospark

Posts: 176
Joined: 05 October 2013

I have come across a 63A RCD(2 pole, single phase) that hums when loaded with about 1.5kW's of inductive loads, but not when minimally loaded with non inductive loads. What causes this?
I couldn't try different loads to see what happens.
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