DistanceRelay
Class Description
A protective device used in power systems that measures the impedance of a transmission line to determine the distance to a fault, and initiates circuit breaker tripping to isolate the faulty section and safeguard the power system.
Attributes
| Name | Type | Description |
|---|---|---|
| backwardBlind | Float | The reverse blind impedance (in ohms) that defines the area to be blinded in the opposite direction of the power flow. |
| backwardReach | Float | The reverse reach impedance (in ohms) that determines the maximum distance along the transmission line in the opposite direction of power flow for which the relay will provide protection. |
| backwardReactance | Float | The reverse reactance (in ohms) that determines the maximum distance along the transmission line in the opposite direction of power flow for which the relay will provide protection. |
| forwardBlind | Float | The forward blind impedance (in ohms) that defines the area to be blinded in the opposite direction of the power flow. |
| forwardReach | Float | The forward reach impedance (in ohms) that determines the maximum distance along the transmission line in the opposite direction of power flow for which the relay will provide protection. |
| forwardReactance | Float | The forward reactance (in ohms) that determines the maximum distance along the transmission line in the opposite direction of power flow for which the relay will provide protection. |
| operationPhaseAngle1 | Float | The phase angle (in degrees) between voltage and current during normal operating conditions for zone 1 relay. |
| operationPhaseAngle2 | Float | The phase angle (in degrees) between voltage and current during normal operating conditions for zone 2 relay. |
| operationPhaseAngle3 | Float | The phase angle (in degrees) between voltage and current during normal operating conditions for zone 3 relay. |
Relationships
Ancestors
Descendents
No descendent classes
Associations
None