Scheme 5
Scheme 6
Scheme 7
Outgoing line
Metering
Incoming line 1
Incoming line 1
Incomingline isolation
Incomingline isolation
Incomingline
Metering
Metering
Incoming line 2
Incoming line 2
PT
PT
PT
Outgoing line
Outgoing line
Outgoing line
Outgoing line
Outgoingline
Outgoingline
Outgoingline
Outgoingline
Outgoingline
PT
PT
Contact
Isolation
Outgoing line
Outgoing line
Contact
Isolation