1) network pattern
2) system pattern
the repetitive arrangement of the nodes in a system and their connections, e.g. feeder, ring, mesh, etc.
GRM: n. (1,2)
Note: this concept is mainly applicable to distribution networks
References:
SEE electrical power network
SEE electrical network
SEE electrical power system
SEE grid
SEE network

ENERGY TERM COURTESY OF ENERGY.EU