I am installing a Victron Quattro in an island mode configuration (in the UK, the DNO is the NG). I will be adding a stand-by generator. My property has a standard TN-C-S (PME) earth arrangement. I am an electrical engineer (testing) not an electrician. The regs state the DNO earth cannot be relied on (it should be disconnected when island mode kicks in). I assume a local earth (TT?) is required - the installers says not. As a professional member of the IET I am a little confused but do not plan to be for long!!!.
Any suggestions on how the system should be earthed?
I saw there was another thread that did not really answer the question.
When connected to the grid the standard PME will be in use - all good and understood.
When the grid fails or is isolated manually or I run my standby generator the islanding relays cut the grid (and the earth). What do we need to do to maintain safety and prevent any RCBs tripping?
Same question when I add the standby generator.
Most installations in this country are not set up for anti-islanding (even if you have batteries) which means that if the grid goes down only your ECS will stay up. I build and test things like data centers and we make sure the systems stay up by using a UPS and a generator. I am doing the same thing at my property.
I have a G99 for 6kW export.
The system will be commissioned this week.
Bren
Any suggestions on how the system should be earthed?
I saw there was another thread that did not really answer the question.
When connected to the grid the standard PME will be in use - all good and understood.
When the grid fails or is isolated manually or I run my standby generator the islanding relays cut the grid (and the earth). What do we need to do to maintain safety and prevent any RCBs tripping?
Same question when I add the standby generator.
Most installations in this country are not set up for anti-islanding (even if you have batteries) which means that if the grid goes down only your ECS will stay up. I build and test things like data centers and we make sure the systems stay up by using a UPS and a generator. I am doing the same thing at my property.
I have a G99 for 6kW export.
The system will be commissioned this week.
Bren