Satec PM172EH Series, Инструкция по установке и эксплуатации

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Appendix E Power Quality Setup
12. Appendix D Event and Data Logging
The PM172EH can provide detection and registration of power quality
events such as:
•
Voltage dips and interruptions
•
Voltage swells and overvoltages
•
Frequency variations
•
Voltage harmonic distortion
The following table gives an example of programming setpoints for
detection and recording power quality events.
Limits Delay SP
No
Trigger
Parameter
Operate Release
Action
Operate Release
2 Low RT Voltage 0.9 Vn 0.92 Vn Event Log
Data Log #3 0 0.2 s
3 High RT Voltage 1.1 Vn 1.08 Vn Event Log
Data Log #3 0 0.2 s
4 High RT
Frequency
1.01 Fn 1.008 Fn Event Log
Data Log #3
0 0.2 s
5 Low RT
Frequency
0.99 Fn 0.992 Fn Event Log
Data Log #3
0 0.2 s
6 High RT Voltage
THD
5.0% 4.5% Event Log
Data Log #3
30 s 0.2 s
7 Voltage
Disturbance
5.0% Event Log
Data Log #3
Waveform Log 1
0 0.2 s
Vn – nominal system voltage
Fn – nominal system frequency (50/60 Hz)
Each power quality event will force the meter to record the time and fault
magnitude of the power quality parameter to the Event Log both at the
start and the end of the event, and to record all power quality parameters
together at the time of the event to Data Log #3. The following table
shows an example for selecting parameters for Data Log #3. See
Appendix D for information on how to allocate memory for your power
quality Data Log.
Data Log #3
No. Group Parameter No. Group Parameter
1 RT PHASE V1 9
2 RT PHASE V2 10
3 RT PHASE V3 11
4 RT PHASE V1 THD 12
5 RT PHASE I2 THD 13
6 RT PHASE I3 THD 14
7 RT AUX FREQ 15
8 16