| Class | Description |
|---|---|
| BaseScCalculator |
Default implementation of the SimpleFault, symmetric or asymmetric, calculation
Notes:
1) for 3-P fault, zeq = zlg
for L-G fault, zeq = zdd0 + zdd2, i1 = i2 = i0
zdd0 = zdd0(net) + 3*Zlg
zdd2 = zdd2(net)
for L-L fault, zeq = Zll/2 + zdd2, i2 = -i1, i0=0
zdd2 = zdd2(net) + Zll/2
for LL-G fault, zeq = zll/2 + zdd0 || zdd2;
zdd2 = zdd2(net) + Zll/2
zdd0 = zdd0(net) + Zll/2 + 3*Zlg
i2 and i0 calculated based on v1 on the fault point
2) For asymmetric fault faults,
3-Phase L-G Fault LL-G Fault L-L Fault
--+---------- --+-------- --+------------- --+---------------
--|---+------ --|--+----- --|-----+------- --|------+--------
--|---|---+-- --|--|--+-- --|-----|-----+- --|------|------+-
| | | | | | | | | | | |
| | | | Zll/2 Zll/2 Zll/2 Zll/2 |
Zlg Zlg Zlg Zlg | | | |
| | | | +--|--+ +------+
+---|---+ | Zlg
| = |
= =
3) Outage analysis
for 3Phase outage:
|-x-------------------------x-|
for 1Phase or 2Phase outage
|-x-------------------------x-|
: :
Zeq Zeq
: : :
= =
2Phase outage: Zeq = Z0 + Z2
1Phase outage: Zeq = Z0 * Z2 / ( Z0 + Z2 )
|
| ScBranchCalculator |
SC calculator implementation for branch fault or outage
|
| ScBusCalculator |
SC calculator implementation for bus fault
|
| ScNetCalculator |
SC calculator implementation for AclfNetwork
|