GE P741

Technical Data
P74x/EN TD/N
a7
MiCOM P74
1, P742, P743 (TD) 2-
11
TD
I>2 Function:
Disabled, 87BBP&N blocking, High Set I>2,
I>2 & 87BBP&N, 87BB/P blocking, 87BB/N
blocking, I>2 & 87BB/P or I>2 & 87BB/N
I>2 Current Set (if “I>2 function” enabled)
0.10…32.00×In (step 0.01×In)
If “I>2 function” = high set I>2
I>2 Time Delay: 0.00…100.00s (step 10ms)
If “I>2 function” = 87BB (P and/or N)
I>2 Time Delay: 0.2…6.00s (step 0.1s)
Earth Fault Protection (50N/51N)
Residual Overcurrent Function Status IN>1:
0. Disabled
1. DT
2. IEC S Inverse
3. IEC V Inverse
4. IEC E Inverse
5. UK LT Inverse
6. IEEE M Inverse
7. IEEE V Inverse
8. IEEE E Inverse
9. US Inverse
10. US ST Inverse
If “function status” ≠0
“IN >1 current set”: 0.10…32.00×In
(step 0.01×In)
If “function status” =1
“IN >1 Time delay”: 0.00…100.00s
(step 10ms)
If “function status” ≤5
“IN >1 TMS”: 0.025…1.200 (step 0.025)
If “function status” ≥6
“IN >1 Time Dial”: 0.5…15.0 (step 0.1)
“IN >1 Reset Char”: DT or Inverse
If “function status” ≤5
or
“IN>1 Reset Char.”=DT & “function status” ≥6
IN >1 tReset: 0.0…100.0 (step 0.1)
IN >2 Function:
Disabled, 87BBP&N blocking, High Set I>2,
I>2 & 87BBP&N, 87BB/P blocking, 87BB/N
blocking, I>2 & 87BB/P or I>2 & 87BB/N
IN>2 Current Set (if “IN>2 function” enabled):
0.10…32.00 xIn (step 0.01×In)
If “IN>2 function” = high set I>2
IN>2 Time Delay:
0.00…100.00s (step 10ms)
If “IN>2 function” = 87BB (P and/or N)
IN>2 Time Delay: 0.2…6.00 s (step 0.1s)
CB Control (PU)
Prot Trip Pulse: 0.05…2.00s (step 10mss)
Trip Latched: Disabled/Enabled
Rest Trip Latch: Yes/No
CB Control by: Disabled, Local and/or
Remote and /or Opto
Man Close Pulse: 0.1…10.0s (step 10ms)
Man Trip Pulse: 0.1…5.0s (step 10ms)
Man Close Delay: 0…600s (step 10ms)
87BB Trip Delay: 0…400ms (step 5ms)
CB Superv Timer: 10…400ms (step 5ms)
Date and Time
IRIG-B Sync: Disabled/Enabled
Battery Alarm: Disabled/Enabled
LocalTime Enable: Disabled/Fixed/Flexible
DST Enable: Disabled/Enabled
Configuration
Setting Group:
Select via Menu or Select via Opto
Active Settings: Group 1/2/3/4
Setting Group 1: Disabled/Enabled
Setting Group 2: Disabled/Enabled
Setting Group 3: Disabled/Enabled
Setting Group 4: Disabled/Enabled
CU Only
Diff Busbar Prot: Disabled/Enabled
– Differential phase fault
– Sensitive earth fault
PU Only
Dead Zone Prot: Disabled/Enabled
CB Fail & I>: Disabled/Enabled
BB Trip Confirm: Disabled/Enabled
Overcurrent Prot: Disabled/Enabled
Earth Fault Prot: Disabled/Enabled
CU & PU
Setting Values: Primary/Secondary
LCD Contrast: (Factory pre-set)