Supply Overcurrent Protection Panel
The Panel is designed to provide a signal to a Load Shedding Panel that supplies the Air Conditioning.
This enables the Air Conditioning load to be shed under any of the following three conditions in order to minimise the load on the DNO Supply:
The TDI Panel power source switches from Traction to DNO supply.
The Domestic Supply Current in any phase of the unbalanced 3-phase Domestic Supply exceeds the Pre-determined value.
The Signalling Supply switches from Traction Signalling Supply to DNO Supply in the event of a Traction Signalling Supply Failure.
Voltage 415V (3P+N) 50Hz