Threshold Occurrence Event
Thresholds occurrence excursions are configured limits that have been exceeded on plant, electrical power or other systems within the facility.
These breaches are recorded and reported in the form of an email condition report which can be used in root cause analysis, system resilience and reliability studies.
Summary information of the event
The Summary information notes the Electrical Disturbance signature.
| System |
sub.net |
|
| Class |
Voltage dip |
|
| Trigger |
Analogue under, 1:Va |
|
| Event priority |
5 |
|
| Circuit |
Home site |
|
| Ambient temperature |
24.2 |
C |
RMS Event waveforms
The RMS Electrical Disturbance signature is graphed in seconds to provide a recognizable view of the Threshold occurrence condition.
Voltage and Current
Detailed Event waveforms
The Electrical Disturbance signature waveform is graphed in milliseconds to provide a detailed view of the disturbance and the Phase relationship prior, during and after the situation.
Voltage and Current
Measurement Summary
RMS levels of the Threshold Occurrence event Pre the event, Max and Min during the event and Post the event
|
Ch |
Pre |
Max |
Min |
Post |
||
|
1 |
Va |
248.250 |
253.054 |
56.297 |
252.212 |
V |
|
2 |
Vb |
249.649 |
254.465 |
55.547 |
253.624 |
V |
|
3 |
Vc |
247.706 |
252.484 |
55.106 |
251.656 |
V |
|
4 |
Ia1 |
2734.951 |
2787.311 |
607.657 |
2778.650 |
A |
|
5 |
Ib1 |
2731.801 |
2784.162 |
607.264 |
2775.304 |
A |
|
6 |
Ic1 |
2731.407 |
2783.965 |
609.626 |
2774.910 |
A |
|
Frequency |
49.982 |
50.014 |
49.965 |
49.971 |
Hz |
|
|
S:Home site |
2037.136 |
2116.230 |
76.836 |
2102.017 |
kVA |
|
|
P:Home site |
2037.107 |
2116.205 |
76.823 |
2101.992 |
kW |
|
|
Q:Home site |
10.706 |
195.888 |
-30.762 |
10.042 |
kVAr |
Analogue Limits
Analogue inputs which exceed the set Threshold Occurrence limits during an event are identified under Limit types and the associated time(s) are relative to the Start time of the event.
|
State |
Limit type |
ms |
|
|
Alarm |
1:Va |
Analogue under |
0 |
|
Alarm |
2:Vb |
Analogue under |
0 |
|
Alarm |
3:Vc |
Analogue under |
0 |
|
Alarm |
1:Va |
Analogue RoC |
0 |
|
Alarm |
2:Vb |
Analogue RoC |
0 |
|
Alarm |
3:Vc |
Analogue RoC |
0 |
|
Normal |
1:Va |
Analogue under |
140 |
|
Normal |
2:Vb |
Analogue under |
151 |
|
Normal |
3:Vc |
Analogue under |
151 |
|
Normal |
1:Va |
Analogue RoC |
161 |
Contact Events
All changes of state of the input contacts detected during the event.
Time(s) are relative to the Start time of the event.
|
State |
Contact |
ms |
|
Alarm |
Circuit breaker 1 |
22 |
Detailed switching of Contact inputs
Contact status conditions are graphed in milliseconds to provide detailed switching and status of devices during an event. Abnormal (Alarm) conditions are identified as a thick line and normal condition as a thin line.
The Contact inputs can be configured as a Trigger or Status condition.
