GE P444

Technical Data
P44x/EN TD/Hb
6
MiCOM P40 Agile P442, P444
(TD) 2-
11
CURRENT TRANSFORMER
SUPERVISION
Accuracy
IN> Pick-up: Setting ±5%
VN< Pick-up: Setting ±5%
IN> Drop-off: 0.9 × setting ±5%
VN< Drop-off:
(1.05 × setting) ±5% or 1 V
whichever is greater
Time delay operation:
Setting ±2% or 20 ms
whichever is greater
CTS block operation: <1 cycle
CTS reset: <35 ms
CB STATE MONITORING AND
CONDITION MONITORING
Accuracy
Timers:
±20 ms or 2%, whichever is greater
Broken current accuracy: ±5%
PROGRAMMABLE SCHEME LOGIC
Accuracy
Output conditioner timer:
Setting ±20 ms or 2%, whichever is greater
Dwell conditioner timer:
Setting ±20 ms or 2%, whichever is greater
Pulse conditioner timer:
Setting ±20 ms or 2%, whichever is greater
AUTORECLOSE AND CHECK
SYNCHRONISM
Accuracy
Timers:
Setting ±20 ms or 2%, whichever is greater
MEASUREMENTS AND RECORDING
FACILITIES
Accuracy
Typically
± 1%, but ± 0.5% between
0.2 - 2In/Vn
Current:
Range: 0.05 to 3 In
Accuracy: ±1.0% of reading
Voltage:
Range: 0.05 to 2 Vn
Accuracy: ±1.0% of reading
Power (W):
Range: 0.2 to 2 Vn and 0.05 to 3 In
Accuracy: ±5.0% of reading at
unity power factor
Reactive power (Vars):
Range: 0.2 to 2 Vn
and 0.05 to 3 In
Accuracy: ±5.0% of reading at
zero power factor
Apparent power (VA):
Range: 0.2 to 2 Vn
and 0.05 to 3 In
Accuracy: ±5.0% of reading
Energy (Wh):
Range: 0.2 to 2 Vn
and 0.2 to 3 In
Accuracy: ±5.0% of reading at
zero power factor
Energy (Varh):
Range: 0.2 to 2 Vn
and 0.2 to 3 In
Accuracy: ±5.0% of reading at
zero power factor
Phase accuracy:
Range: 0° to 360°
Accuracy: ±0.5%
Frequency:
Range: 45 to 65 Hz
Accuracy: ±0.025 Hz
IRIG-B AND REAL TIME CLOCK
Performance
Real time clock accuracy:
< ±2 seconds/day
Modulation ratio: 1/3 or 1/6
Input signal peak-peak amplitude:
200 mV to 20 V
Input impedance at 1000 Hz: 6000 Ω External
clock synchronization:
Conforms to IRIG standard 200-98, format B