GE P742

P74
x/EN TD/Na7
Technical Data
(TD) 2
-12 MiCOM P74
1, P742, P743
TD
Measurements and records List
Fault Recorder
Records for the last 5 faults
Central Unit:
• Active Setting group
• Faulty phase
• Protection started/operated (87BB, 50BF,
Dead Zone…)
• Fault occurrence time and duration
• Check Zone values (Diff. & Bias for A, B, C,
N)
• Faulty zone(s)
• Topology prior the fault occurrence
Peripheral Unit:
• Active setting group
• Indication of the tripped phases
• Protection started/operated (87BB, 50BF,
Dead Zone…)
• Relay Trip Time and duration
• Relay Trip Time
• Faulty phase currents (A, B, C, N)
Event Recorder
Records for the last 512 events
Oscillography
(Disturbance Recorder)
Central Unit:
Duration: Fixed value 1.2 s
Trigger Position: 0…100% (step 33.3%)
Analogue Channel 1: (up to 8)
Digital Input 1: (up to 32)
Peripheral Unit:
Duration: Settable from 1.2 to 10.5s
Trigger Position: 0…100% (step 0.1%)
Trigger Mode: Single / Extended
Analogue Channel 1: (up to 4):
Digital Input 1: (up to 32):
Selected binary channel assignment from
any DDB status point within the relay (opto
input, output contact, alarms, starts, trips,
controls, logic…).
Sampling frequency: 600Hz
Communications
RP1 Protocol: Courier
RP1 Address (courier): 6…34
Inactivity Timer: 1…30 minutes
RP1 Port Config (Courier):
K Bus / EIA485 (RS485)
RP1 Comms Mode (EIA485 (RS485)):
IEC60870 FT1.2 Frame
10-Bit NoParity
RP1 Baud Rate (EIA485 (RS485)):
9600 / 19200 / 38400 bits/s
RP1 Read Only: Disabled/Enabled
Optional Second Rear
Communication
RP2 Protocol: Courier (fixed)
RP2 Port Config:
Courier over EIA(RS)232
Courier over EIA(RS)485
K-Bus
RP2 Comms. Mode:
IEC60870 FT1.2 Frame
10-Bit NoParity
RP2 Address: 0…255
RP2 InactivTimer: 1…30mins
RP2 Baud Rate:
9600 / 19200 / 38400 bits/s
RP2 Read Only: Disabled/Enabled
Optional Ethernet Port
NIC Tunl Timeout: 1…30mins
NIC Link Report: Alarm / Event / None
NIC Link Timeout: 0.1…60s
NIC Read Only: Disabled/Enabled