1. S. MELQUIOND France Session 1 – Block 1 – Question 1- 5 Barcelona 12-15 May 2003 1 Question 1-5 Is the transformer protection by mean of protection switch associated or not with partial range fuses a general trend ?

2. S. MELQUIOND France Session 1 – Block 1 – Question 1- 5 Barcelona 12-15 May 2003 2 fuse protection advantages prospective short circuit of 31.5 kA on a 12 kV network

3. S. MELQUIOND France Session 1 – Block 1 – Question 1- 5 Barcelona 12-15 May 2003 3 Compact substation 2 functions RMU SPT LV panel Oil retention tank MV/LV winding.

4. S. MELQUIOND France Session 1 – Block 1 – Question 1- 5 Barcelona 12-15 May 2003 4 Self protection diagram Fault Detection Action Insulation Electric faultOil leakageOver pressureOil T° rise Micro-fuseLevel sensorPressure sensorThermostat 3 phases Short-circuit 2 MV fuses melt 3 phases disconnecting Phase B delayed opening