P443/EN OP/B42 Operation
(OP) 5-34
MiCOMho P443 версия 5.4.
SOTF
With this feature Enabled, the relay operates in Switch on to Fault mode. Three pole
instantaneous tripping (and auto-reclose blocking) occurs for any fault detected by the
selected zones or/and ‘Current No Volt’ level detectors when in Switch on to Fault mode.
Whether this feature is enabled or disabled, the normal time delayed elements or aided
channel scheme continues to function and can operate to trip the circuit.
TOR Tripping Links - While the Trip on Reclose Mode is active, The MiCOMho P443 will
trip instantaneously for pick up of or/and ‘Current No Volt’ level
detectors any zone selected in these links. To operate for faults on
the entire circuit length it is recommended that at least Zone 1 and
Zone 2 are selected. If no elements are selected then the normal
time delayed elements and aided scheme provide the protection.
Уставка: 6-ая еденица.
SOTF Tripping 000001
Bit 0 = Zone 1, Bit 1 = Zone 2,
Bit 2 = Zone 3, Bit 3 = Zone P,
Bit 4 = Zone 4, Bit 5 = Current No Volt
TOR Tripping 000001
Bit 0 = Zone 1, Bit 1 = Zone 2,
Bit 2 = Zone 3, Bit 3 = Zone P,
Bit 4 = Zone 4, Bit 5 = Current No Volt
It also allows a user to map ‘Currents No Volt’ option for fast fault clearance upon
line energization. SOTF tripping is 3 phase and auto-reclose will be blocked.
Аналогично для ТОР (т.е. ускорение после АПВ).
ЗЫ: У других производителей есть такая же логика (внутренняя), но она может по другому называться.