Schema Overview
Assumptions
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Columns indicate:
Label: a human-readable label for the property
Source: the supplier of the data value contained in the property
Property: the RDF value of the metadata element
Sub-property of: a master RDF value that the property belongs to
Range: an indication of the data type of the value of the property
Usage: description of how the property should be used
Vocab Schema: a controlled vocabulary to be applied to the value of the property
Syntax Schema: a syntax for the value of the property
Obligation: the requirement for the number of properties that can exist
- Event
| Label | Source | Property | Sub-property of | Range | Usage | Vocab Schema | Syntax Schema | Obligation | Example 1: Fault | Example 2: Capacitor | Example 3 | Example 4 | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Event_ID | ASPIRES | .eventID | Unique identifier (ID) of the event file | 1 | 1 | 2 | 4 | ||||||
| PQ monitor location | Data provider | .pqMonitorLocationCategory | Name of the utility substation | Substation, feeder, service entrance, equipment (cap., xfmr), load | 0-1 | Service entrance | Service Entrance DataNode 5571 | Service entrance |
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| PQ monitor model | Data provider | .pqMonitorModel | Model of the PQ monitor | 0-1 | Service Entrance I-Sense® | Schneider Electric Circuit Monitor 4000T (Square D) | |||||||
| Nominal voltage | Data provider or ASPIRES | .nominalVoltage | Nominal voltage of the system in kV | 0-1 | 120 | ||||||||
| Nominal frequency | Data provider or ASPIRES | .nominalFrequency | Nominal frequency of the system in Hertz | 50, 60 | 0-1 | 60 | |||||||
| Start time | Data provider or ASPIRES | .startTime | The start time of the event file in the ISO 8601 format | ISO 8601
| 0-1 | 2003-02-02T 19:57:45.5000
| 2003-02-01T 03:54:06.4671 | 2003-02-26T15:54:17 |
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| date time offset (start time) | ASPIRES | .timeOffset | Time difference between the start time and a time value in a datasheet | 0-1 | 0 | 0 | |||||||
| Time zone | Data provider | .timeZone | Time zone: PT, MT, CT, ET | 0-1 | |||||||||
| Root cause | Data provider | .rootCause | Electrical incident triggering the event : short-circuit fault, energizing (capacitor, line, transformer), load change, generation | 0-1 | |||||||||
| Inferred root cause | ASPIRES | .inferredRootCause | The root cause inferred using other properties. | short-circuit fault, capacitor switching, ... | 0-1 | Short-circuit fault | Capacitor Switching | Capacitor Switching | |||||
| Degree of certainty | ASPIRES | .certainty | Degree of certainty the recorded event was caused by the root cause | High, medium, low | 0-1 | ||||||||
| Data provider (entity) | ASPIRES | .dataProvider | Name of the entity or organization providing the data to ASPIRES (may not be the data recording entity) | 0-1 | Electrotek | Electrotek | Electrotek | ||||||
| Data source | ASPIRES or Data provider | .dataSource | Name of the entity or organization that recorded the data (for example, a utility company). Could be the same as the data provider. | 0-1 | |||||||||
| Receiving database name and version | ASPIRES or Data provider | .receivedDatabase | Data Base name and version | 0-1 | Normal - PQView 3.46.0 Database - Version 3.03.04.00 | ||||||||
| Providing agent (individual or official providing the data) | Data provider | .providingAgent | Name of the individual providing the data | 0-1 | |||||||||
| Detail | Data provider | .detail | Additional details if available | 0-1 | |||||||||
| Containing dataset | Data provider | .rawData | PQ event file or the database file which containts the PQ event, as received | 0-1 | PQViewAccess DB (Not attached (100Mb)) | PQViewAccess DB (Not attached (100Mb)) | |||||||
| Voltage | Data provider | Time-series | Voltage data | 1 | |||||||||
| Current | Data provider | Time-series | Current data | 1 | |||||||||
| Description | Data provider | Description | Additional description about the event | 0-1 | |||||||||
| Software analysis | Data provider or ASPIRES | Software analysis | Software analysis performed on the event | 0-1 | |||||||||
| IEEE disturbance classification | ASPIRES or Data Provider | IEEE Disturbance | Category of this event according to the IEEE standard 1159-2009 | 0-n |
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| Label | Source | Property | Sub-property of | Range | Usage | Vocab Schema | Syntax Schema | Obligation | Example: Fault | Example: Capacitor | Example 3 | Example 4 | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather | Data Provider | .weather | array | Weather category at the time when the data was recorded | Unknown, wind, lightning, heat, ice/snow, rain, clear day, tornado/hurricane ## vocabularies used in PQ View Access database | 0-1 | Wind | Clear Day | |||||
| Isolation equipment | Data Provider | .isolationEquipment | Type of the protection equipment that cleared the disturbance event recorded in the event file | Unknown, breaker, recloser, fuse, sectionalizer, switch, elbow, network protectors ## vocabularies used in PQ View Access database | 0-1 | Fuse | Switch | ||||||
| Internal agent | Data Provider | .internalAgent | Equipment which failed | Cable, joint, transformer, conductor, splice, lightning arrester, switches, cross arm, pole, insulator, connector, other, unknown ## vocabularies used in PQ View Access database | 0-1 | Lightning arrester | Cable | ||||||
| External agent | Data Provider | .externalAgent | Factors from outside the power system which resulted in the root cause: | Animals, lightning, wind, major event, scheduled, trees, overload, error, supply, equipment, other, unknown, earthquake ## vocabularies used in PQ View Access database | 0-1 | Tree | Overload | Scheduled | |||||
| Detail | Data Provider | .detail | Additional details if available | Text | 0-1 |
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