TY  - JOUR
T1  - Comparison Between Multi-Break Circuit Breaker and Cascaded Series Circuit Breakers
AU - Ahmed Saad, Mahmoud 
JO  - International Journal of Electrical and Power Engineering
VL  - 14
IS  - 6
SP  - 68
EP  - 84
PY  - 2020
DA  - 2001/08/19
SN  - 1990-7958
DO  - ijepe.2020.68.84
UR  - https://makhillpublications.co/view-article.php?doi=ijepe.2020.68.84
KW  - arc
KW  -modifications
KW  -cassie breaker
KW  -HVDC circuit breaker
KW  -voltage
AB  - Arc interruption of High Voltage Direct
Current (HVDC) Circuit Breakers (CBs) is one of the
main challenging factors for using HVDC grids. To
evaluate the arc interrupting capability in HVDC circuit
breakers, black box arc models are used to represent the
non-linear arc conductance depending on Cassie and
Mayrdynamic arc equations. A real line represents a part
of 500 kV electrical connection systems between Egypt
and Kingdom Saudi Arabia is simulated to be a faulty
load. It is found that the arcing voltage and thearcing time
of the HVDC CB can be reduced by decreasing the value
of arcing time constant( ) and increasing the value of
power cooling coefficient (P) It is also deduced that the
arcing time is reduced by the increase of the commutation
capacitance value (C) and decreasing the commutation
inductance (L) value and vice versa. Moreover, it is
concluded that the arcing voltage of HVDC circuit
Breaker is greatly affected if more than one pole
(cascaded series or parallel two or three poles) are used
for single circuit breaker and this would be more effective
and better for commercial reasons than using cascaded
series or parallel two or three circuit breakers.
ER  -