Schneider Micom P445 Distance Protection Relays
Series :
MiCOM Px40
Manufacturer :
Schneider Electric
TN VED code :
8537 10 990 0
Digital inputs (max) :
16
Relay outputs (max) :
16
CT inputs (max) :
4
VT inputs (max) :
4
Protection functions ANSI
[21] - Distance Protection
[21P] - Distance protection phase
[21FL] - Fault location
[25] - Synchronism Check
[27/59] - Under/over voltage
protection
[46] - MTZOP
[46BC] - Wire break protection
[49RMS] - Thermal Protection
[50BF] - ROV
[50SG] - Sensitive Ground
Instantaneous Overcurrent
[50/51] - Three-phase overcurrent
[50N/51N] - Overcurrent protection
for LP current
[59N] - Overvoltage protection LP
[60CTS/VTS] - Monitoring the health
of measuring circuits
[64N][REF] - Impedance protection
[67] - Directional MTZ
[67N] - Directional overcurrent
from ZNZ calculated by 3TT
[67SG] - Directional overcurrent
from EOS, measured by sensitive TTNP
[68] - Blocking Logic
[74TCS] - Trip Circuit Supervision
[79] - AR
[81O] - Overfrequency Protection
[81U] - Underfrequency Protection
[81R] - Rate of Change of Frequency
Protection (df/dt)
[85] - Security Signal Exchange
[86] - Learning output relays
[50HS][50/27][SOTF] - Acceleration
of protections when turned on for a short circuit
[52] - Control, control and
monitoring of the circuit breaker