number of substation circuits minus one m n u2212 1 continuing to refer to fig2 each restoration a switch assembly is constructed similar to the fault isolating switch assembly 22 the restoration switch assembly includes a switch controller 30 and a normally open switch 42 having switch contacts 44 and 46 current and voltage sensors 31 and 32 are also provided in the restoration switch assembly 40 to measure current flowing through the switch 42 and the voltage between feeder conductors 34 and a reference point as can readily be seen in fig2 the difference between switch assembly 22 and switch assembly 40 is that one switch is normally closed and the other switch is normally open switch controller 30 of each restoration switch assembly 40 operates is a similar manner as the switch controller for each fault isolating switch assembly 22 and is connected via line 37 to distribution station controller 36 communication between switch controllers 30 and distributing station controller 36 may be accomplished through fiber optic cables 37 utilizing known devices and transmission techniques or through rf or microwave communications utilizing known transmitters 48 as shown in fig4 the operation of the system of the present invention will now be described as noted above faults may occur on the load side of any fault isolating switch assembly between the switch assembly and an in line circuit fuse or on the line side of any fault isolating switch assembly between the substation circuit breaker and the switch assembly thus two operational sequences are utilized wherein each operational sequence depends on.