The white paper covers key technology details behind the WAMSTER Event triggering functionality, and describes some typical use cases for configuring and analyzing events:

• Event triggering introduction: details behind the triggering system, its internals and its limitations;
• Defining processing rules: choosing quantities, preprocessing rules and filters, and chaining them to get various system indicators;
• Configuring triggers: defining relative or absolute comparisons, processing and thresholds for event triggering;
• Analyzing event details: examining measurement trends related to triggered events and exporting data around the event for detailed offline analysis.

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The white paper covers key technology details behind the WAMSTER system:

• STER PMU, a lightweight, portable, IEEE C37.118 compliant PMU:
  • deployment and configuration of PMU devices is drastically simplified;
  • using a GPRS connection instead of wired Ethernet links removes the need for a dedicated networking infrastructure;
  • rechargeable battery backup keeps the device and the modem online during blackouts;
  • removable SD flash memory keeps up to 4 months of full-resolution data locally, on the PMU device.
• WAMSTER, a reliable synchrophasor concentrator server with data storage as a service:
  • optimized communication protocol adapts dynamically to low-signal mobile network conditions;
  • web application for online data analysis, automatic event triggering and reporting, with data export to customizable formats;
  • data access from any web-enabled device, with full remote PMU setup and management capabilities;
  • easy interoperability with existing systems.

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