SDMO R 340 U User And Maintenance Manual page 84

Earthing system: IT
Earthing system: TNS
Earthing system: TT
Ground
Current
transformer
Ground
Neutral connected to grounds
Current
transformer
Ground
Current
transformer
Isolated neutral
CIRCUIT
DISJONCTEUR
BREAKER
N R
Ground rod
CIRCUIT
DISJONCTEUR
BREAKER
N R S
Ground rod
Neutral
CIRCUIT
DISJONCTEUR
BREAKER
N R S
If equipped
Junction box
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S T
T
T
Ground rod