Micom ALSTOM P341, Technical Data Sheet

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P341 Technical Data Sheet
20
P341 Software versions 36 & 71J
Measurements
Accuracy
Current: 0.05…3 In:
±
1% of reading
Voltage: 0.05…2 Vn:
±
5% of reading
Power (W): 0.2…2 Vn, 0.05…3 In:
±
5% of
reading at unity power factor
Reactive Power (VArs): 0.2…2 Vn, 0.05…3 In:
±
5% of reading at zero power factor
Apparent Power (VA): 0.2…2 Vn, 0.05…3 In:
±
5% of reading
Energy (Wh): 0.2…2 Vn, 0.2…3 In:
±
5% of
reading at zero power factor
Energy (Varh): 0.2…2 Vn, 0.2…3 In:
±
5% of
reading at zero power factor
Phase accuracy: 0
°
…360:
±
5%
Frequency: 40…70 Hz:
±
0.025 Hz
IRIG-B and real time clock
Performance
Year 2000: Compliant
Real time accuracy: <
±
1 second / day
Features
Real time 24 hour clock settable in hours,
minutes and seconds
Calendar settable from January 1994 to
December 2092
Clock and calendar maintained via battery
after loss of auxiliary supply
Internal clock synchronization using IRIG-B
Interface for IRIG-B signal is BNC
Current loop input and outputs
Accuracy
Current loop input accuracy:
±
1% of full scale
CLI drop-off threshold Under: setting
±
1% of
full scale
CLI drop-off threshold Over: setting
±
1% of full
scale
CLI sampling interval: 50 ms
CLI instantaneous operating time: < 250 ms
CLI DT operating time:
±
2% setting or 200 ms
whichever is the greater
CLO conversion interval: 5 ms
CLO latency: < 1.07 s or <70 ms depending on
CLO output parameter’s internal refresh rate
- (1 s or 0.5 cycle)
Current loop output accuracy:
±
0.5% of full
scale
Repeatability: <5%
CLI - Current Loop Input
CLO - Current Loop Output
Other specifications
CLI load resistance 0-1 mA: < 4 k
Ω
CLI load resistance 0-1 mA/0-20 mA/4 20 mA:
<300
Ω
Isolation between common input channels:
zero
Isolation between input channels and case
earth/other circuits: 2 kV rms for 1 minute
CLO compliance voltage 0-1 mA/0 10 mA:
10 V
CLO compliance voltage 0-20 mA/4 20 mA:
8.8 V
Isolation between common output channels:
zero
Isolation between output channels and case
earth/other circuits: 2 kV rms for 1 minute
Disturbance records
Accuracy
Magnitude and relative phases:
±
5% of applied
quantities
Duration:
±
2%
Trigger Position:
±
2% (minimum 100 ms)
Record length: 50 records each 1.5 s duration
(75 s total memory) with 8 analogue
channels and 32 digital channels
(Courier, MODBUS, DNP 3.0, IEC 61850), 8
records each 3 s (50 Hz) or 2.5 s (60 Hz)
duration (IEC 60870-5-103).
Event, fault & maintenance records
Maximum 512 events in a cyclic memory
Maximum 5 fault records
Maximum 10 maintenance records
Accuracy
Event time stamp resolution 1 ms