Alstom MiCOM P546 - Page 40

P54x/EN TD/La4 Technical Data
(TD) 2-10 MiCOM P543, P544, P545 & P546
TD
Fault locator
Accuracy
Fault location: 2% of line length (under
reference conditions)*
* Reference conditions solid fault applied on
line
Event, fault & maintenance records
The most recent records are stored in battery-
backed memory, and can be extracted via the
communication port or be viewed on the front
panel display.
No of Event Records: Up to 512 time tagged
event records.
No of Fault Records: Up to 15
No of Maintenance Records: Up to 10
Plant supervision
Accuracy
Timers: 2% or 20ms whichever is greater
Broken current accuracy: 5%
Timer accuracy
Timers: 2% or 40ms whichever is greater
Reset time: <30 ms
Undercurrent accuracy
Pick-up: 10% or 25 mA whichever is greater
Operating time: <20 ms
Reset: <25 ms
InterMiCOM
64
fiber optic
teleprotection
End-end operation. Table below shows
minimum and maximum transfer time for
InterMiCOM
64
(IM64).
The times are measured from opto initialization
(with no opto filtering) to relay standard output
and include a small propagation delay for
back-back test (2.7 ms for 64 kbits/s and
3.2 ms for 56 kbits/s).
IDiff IM64 indicates InterMiCOM
64
signals
working in conjunction with the differential
protection fiber optic communications channel.
IM64 indicates InterMiCOM
64
signals working
as a standalone feature.
Configuration
Permissive op
times (ms)
Direct op
times (ms)
IM64 at 64 k 13 - 18 17 - 20
IM64 at 56 k 15 - 20 19 - 22
IDiff IM64 at 64 k
22 - 24 23 - 25
IDiff IM64 at 56 k
24 - 26 25 - 27
Ethernet data (where applicable)
100 Base FX Interface
Transmitter Optical Characteristics
(TA = 0°C to 70°C, VCC = 4.75 V to 5.25 V)
Parameter Sym Min. Typ. Max. Unit
Output Optical
Power BOL
62.5/125 µm,
NA = 0.275
Fiber EOL
PO
-19
-20
-16.8 -14
dBm
avg.
Output Optical
Power BOL
50/125 µm,
NA = 0.20 Fiber
EOL
PO
-22.5
-23.5
-20.3 -14
dBm
avg.
Optical
Extinction Ratio
10
-10
%
dB
Output Optical
Power at Logic
“0” State
PO
(“0”)
-45
dBm
avg.
BOL - Beginning of life
EOL - End of life
Receiver Optical Characteristics
(T
A = 0°C to 70°C, VCC = 4.75 V to 5.25 V)
Parameter Sym Min. Typ. Max. Unit
Input Optical
Power
Minimum at
Window Edge
PIN
Min.
(W)
-33.5 –31
dBm
avg.
Input Optical
Power
Minimum at
Eye Center
PIN
Min.
(C)
-34.5 -31.8
Bm
avg.
Input Optical
Power
Maximum
PIN
Max.
-14 -11.8
dBm
avg.