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RCD protection for portable equipment with Inverters

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Discuss RCD protection for portable equipment with Inverters in the Electrician Talk | All Countries area at ElectriciansForums.net

OK,
So it's TT.
What is the earthing?
What is the Ra, what is the Zs at the origin of the installation?
What are the Zs's of the circuits?
 
Check which types of RCD are you using, as inverters can have a pulsating and static dc currents in the supply that can upset some RCDs. Ask the manufacture of the inverter for suggestions. Measure the current in the earth if it is excessive you may need to run the inverters off transformers. NB the star point of the secondary will need connecting to the earth terminal of the inverter, this is so the radio intereference filters can work.
 

Reply to RCD protection for portable equipment with Inverters in the Electrician Talk | All Countries area at ElectriciansForums.net

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