TY  - GEN
AU  - Amr Muhammad AbdElaleem Elhadidy
AU  - Ahmed Alaa Mahfouz , 
TI  - Design and implementation of a programmable simulator for the estimation of over - current protective relays immunity against decaying DC offests / 
PY  - 2007///
CY  - Cairo : 
PB  - Amr Muhammad AbdElaleem Elhadidy , 
KW  - Decaying DC offests
KW  - Mal - Operation area
KW  - Relay testers
KW  - Simulators
N1  - Thesis (M.Sc.) - Cairo University - Faculty Of Engineering - Department Of Electrical Power and Machines; Issued also as CD
N2  - Due to the inductive nature of power systems a decaying DC component appears in the fault current waveform , while the settings of the relay is based on pure steady state calculations.This decaying DC component might affect the operation of the protective relays and make theprotection system loose its security due to mal - trips
UR  - http://172.23.153.220/th.pdf
ER  -