1) series injection of a centralised telecontrol signal 2) series injection of a centralized telecontrol signal the injection of a signal into the supply system by a device connected in series with each outgoing feeder or with the supply to busbars GRM: n. (1,2) REG: British English (1), American English (2) References: SEEshunt injection of a centralised telecontrol signal SEEshunt injection of a centralized telecontrol signal