Recommended Time Accuracy
The time criticality of an application defines the recommended time accuracy of data logged for the application to achieve its intended output.
The overall time accuracy level of a digital system will be derived both from the individual performance of the connected product timestamp and by the synchronization of system components to a single, reliable, and accurate time reference.
| Applications | Time Criticality | Recommended Time Accuracy [+/-] | Minimum Required Time Accuracy [+/-] |
|---|---|---|---|
| Advanced Protection and Automation |
High |
1 ms |
10 ms |
| Arc Flash Protection |
High |
1 ms |
10 ms |
| Asset Performance |
Low |
1 s |
10 s |
| Backup Power Testing |
Medium |
10 ms |
100 ms |
| Circuit Breaker Settings Monitoring |
Low |
1 s |
10 s |
| Capacity Management |
Low |
1 s |
10 s |
| Continuous Thermal Monitoring |
Low |
1 min* |
5 min* |
| Cost Allocation |
Low |
1 s |
10 s |
| Electrical Asset Life Cycle Management |
Low |
1 min |
5 min |
| Electrical Distribution Monitoring and Alarming |
Medium |
10 ms |
1 s |
| Energy Benchmarking |
Low |
1 s |
10 s |
| Energy Efficiency Compliance |
Low |
1 s |
10 s |
| Energy Modeling and Verification |
Low |
1 s |
10 s |
| Energy Monitoring |
Low |
1 s |
10 s |
| Energy Performance |
Low |
1 s |
10 s |
| Greenhouse Gas Reporting |
Low |
1 s |
10 s |
| Guided Procedures Through Extended Reality |
Low |
1 s |
10 s |
| Insulation Monitoring |
Low |
1 s |
10 s |
| Microgrid |
Medium |
10 ms |
100 ms |
| Operator Training Simulation* |
High |
1 ms |
10 ms |
| Power Event Analysis |
High |
1 ms |
10 ms |
| Power Factor Correction |
Low |
1 s |
10 s |
| Power Quality Correction |
Low |
1 s |
10 s |
| Power Quality Monitoring and Compliance |
Medium |
10 ms |
100 ms |
| Power Source and Load Control |
Medium |
10 ms |
100 ms |
| Simulate Before Operate* |
High |
1 ms |
10 ms |
| Utility Bill Verification |
Low |
1 s |
10 s |