August 24, 20223 yr Hi Does anybody know if the kodak OG7.2 inverter have an internal earth boding relay function or should I install a contactor? Thanks
August 24, 20223 yr You can find this out: Disconnect everything from inverter, shut it off. Then probe continuity with a multimeter between AC neutral output terminal and earth terminal. If there is continuity then there is automatic bonding. If not, you have to do it externally.
September 28, 20223 yr Author Just to confirm, these inverters does have an internal earth bonging relay.
January 29, 20242 yr Hi I can not find any documentation that show that the kodak OG7.2 have a build in earth bonding relay and what method must be used to do earth bonding correctly on this unit if it don't have a relay please assist I need to do this for for compliance of city council
January 30, 20242 yr 18 hours ago, Riaancam said: I can not find any documentation that show that the kodak OG7.2 have a build in earth bonding relay... It's all built-in, and you don't have to do anything special. If you need to prove to yourself or someone else that the bonding relay exists, the instructions are a few posts back.
January 30, 20242 yr 1 hour ago, Coulomb said: It's all built-in, and you don't have to do anything special. If you need to prove to yourself or someone else that the bonding relay exists, the instructions are a few posts back. Based on the earlier post on how to test for the bonding....... If everything is switched off can the bonding relay be powered to create the bond only when in island mode? Edited January 30, 20242 yr by Scorp007
January 30, 20242 yr It's a NC relay & the coil is energized with Grid power. So when the Inverter is depowered the Earth & Neutral are in contact.
January 31, 20242 yr On 2024/01/30 at 3:13 PM, Steve87 said: It's a NC relay & the coil is energized with Grid power. Yes, it's a normally closed contact, and it's energised when AC-in is connected to AC-out. Both active and neutral connect and disconnect at once. For many models and at least with SUB output source priority, and certainly with utility first output source priority, this is any time that AC-in (usually but not always grid) is present. But there are cases when AC-in is present, but it's not connected to AC-out, so the AC-in neutral is not connected to AC-out neutral. It all "just works" because AC-out neutral is always grounded by only ever one of two paths: via the AC-in neutral (and thus the premises' neutral to earth bond), or via the relay contact.
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.