And thanks to the administrator for accepting my profile on this site.
I have the following equipment to be installed:
4 x 48V 5KVA Axpert inverters
24 x 250Ah 12V Sonic batteries (6 strings of 48V)
42 x 250 Watt PV panels
1 x 20KVA Diesel generator
Only yesterday, through this site (and not the supplier) I learned the Axpert inverter cannot be certified compliant unless it is classified as a 'UPS'. Please see attached wiring diagram sent by the supplier.
For me this is catastrophic from a safety POV and obviously the lack of connection capability to the municipal Earth to qualify for the COC.
My questions please:
1) Does anyone know of a way around the common earthing issue and a method of tying into the municipal earth?
2) I understand the thermal magnetic trip switch on the earth leakage relay (Chint 63A) is obviously not connected to municipal earth. So is there any reason it is insufficient as a protection mechanism in the event of the specified 30Ma rating and thermal increase in the conductor. Can it be relied upon (obviously after being tested) to provide adequate earth leakage protection from the Axpert inverter ?
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Wisey
Hi Everyone
And thanks to the administrator for accepting my profile on this site.
I have the following equipment to be installed:
4 x 48V 5KVA Axpert inverters
24 x 250Ah 12V Sonic batteries (6 strings of 48V)
42 x 250 Watt PV panels
1 x 20KVA Diesel generator
Only yesterday, through this site (and not the supplier) I learned the Axpert inverter cannot be certified compliant unless it is classified as a 'UPS'. Please see attached wiring diagram sent by the supplier.
For me this is catastrophic from a safety POV and obviously the lack of connection capability to the municipal Earth to qualify for the COC.
My questions please:
1) Does anyone know of a way around the common earthing issue and a method of tying into the municipal earth?
2) I understand the thermal magnetic trip switch on the earth leakage relay (Chint 63A) is obviously not connected to municipal earth. So is there any reason it is insufficient as a protection mechanism in the event of the specified 30Ma rating and thermal increase in the conductor. Can it be relied upon (obviously after being tested) to provide adequate earth leakage protection from the Axpert inverter ?
Thanks in anticipation of your responses
All the best
Wisey
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