Title :
A differential line protection scheme for power systems based on composite voltage and current measurements
Author :
Aggarwal, R.K. ; Johns, A.T.
Author_Institution :
Sch. of Electr. Eng., Bath Univ., UK
fDate :
7/1/1989 12:00:00 AM
Abstract :
A differential feeder protection that utilizes voltage and current signals is described. This approach obviates the need for relay bias to compensate for capacitance spill current, thus improving the relay sensitivity. From a practical point of view, the scheme has been designed to simplify the digital hardware requirements and reduce the bandwidth requirements for signal transmission over a fiber-optic link
Keywords :
electric current measurement; power system measurement; power system protection; relay protection; voltage measurement; capacitance spill current; current measurements; differential feeder protection; fiber-optic link; power system relay protection; signal transmission; voltage measurement; Capacitance; Circuit faults; Current measurement; Digital relays; Fault currents; Power system measurements; Power system protection; Power system relaying; Protective relaying; Voltage;
Journal_Title :
Power Delivery, IEEE Transactions on
