GE P742

P74
x/EN TD/Na7
Technical Data
(TD) 2
-4 MiCOM P74
1, P742, P743
TD
100 Base FX Interface
Interface in accordance with IEEE802.3 and
IEC61850
Wavelength: 1300nm
Fiber: multi-mode 50/125µm or 62.5/125µm
Connector style: BFOC 2.5 -(ST®)
Optional Rear redundant Ethernet
connection for IEC 61850
100 Base FX Interface
Interface in accordance with IEEE802.3 and
IEC61850
Wavelength: 1300nm
Fiber: multi-mode 50/125µm or 62.5/125µm
Connector style: BFOC 2.5 -(ST®)
Transmitter optical characteristics 100 base FX
interface
Transmitter Optical Characteristics – 100
base FX interface
(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
P
OUT
–19
–20
–16.8 –14
dBm
avg.
Output Optical Power
BOL: 50/125 µm,
NA = 0.20 Fiber EOL
P
OUT
–22.5
–23.5
–20.3 –14
dBm
avg.
Optical Extinction
Ratio
10
–10
%
dB
Output Optical Power
at Logic “0” State
P
OUT
(“0”)
–45
dBm
avg.
BOL – Beginning of life
EOL – End of life
Receiver Optical Characteristics – 100 base
FX interface
(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
P
IN
Min.
(W)
–33.5 –31
dBm
avg.
Input Optical Power
Minimum at Eye
Center
P
IN
Min.
(C)
–34.5 –31.8
dBm
avg.
Input Optical Power
Maximum
P
IN
Max.
–14 –11.8
dBm
avg.
Fiber defect connector (watchdog relay) –
Redundant Ethernet board
Connector (3 terminals): 2NC contacts
Rated voltage: 250 V
Continuous current: 5 A
Short duration current: 30 A for 3 s
Breaking capacity
DC: 50 W resistive
DC: 25 W resistive
AC: 1500 VA resistive (cos φ = unity)
AC: 1500 VA inductive (cos φ = unity)
Subject to maxima of 5 A and 250 V
Ratings
AC Measuring Inputs
Nominal frequency: 50 and 60 Hz (settable)
Operating range: 45 to 65 Hz
Phase rotation: ABC or ACB
AC Current
Nominal current (In): 1 and 5 A dual rated.
(1A and 5A inputs use different transformer tap
connections, check correct terminals are
wired).
Nominal burden per phase
1 A: <0.04VA at rated current
Impedance per phase
1 A: <40mΩ over 0 - 30In
Nominal burden per phase
5 A: <0.15VA at rated current
Impedance per phase
5 A: <8mΩ over 0 - 30In
Thermal withstand:
continuous 4 In
for 10 s: 30 In
for 1 s; 100 In
Linear to 64 In (non-offset AC current).
Power supply
Auxiliary Voltage (Vx)
Three ordering options:
(i) Vx: 24 to 48 Vdc
(ii) Vx: 48 to 110 Vdc,
and 40 to 100 Vac (rms.)
(iii) Vx: 110 to 250 Vdc,
and 100 to 240 Vac (rms.).
Operating Range
(i) 19 to 65 V (dc only for this variant)
(ii) 37 to 150 V(dc), 32 to 110 V (ac)
(iii) 87 to 300 V(dc), 80 to 265 V (ac).
With a tolerable ac ripple of up to 12 % for a dc
supply, per IEC 60255-11: 1979.
Nominal Burden
Quiescent burden:
P741: 37 to 41 W
P742: 16 to 23 W
P743: 22 to 32 W
Additions for energised binary inputs/outputs:
Per opto input:
0.09 W…(24 to 54 V),
0.12 W…(110/125 V),
0.19 W…(220/250 V).
Per energised output relay: 0.13 W
Per energised high break output relay: * 0.73W
Power-up Time
Time to power up < 30 s.