ProtectionRelayFunction

Class Description

A function that a relay implements to protect equipment.

Attributes

Name	Type	Description
directable	Boolean	Whether this ProtectionRelayFunction responds to power flow in a given direction.
model	String	The protection equipment type name (manufacturer information)
powerDirection	PowerDirectionKind	The flow of power direction used by this ProtectionRelayFunction.
protectionKind	ProtectionKind	The kind of protection being provided by this ProtectionRelayFunction.
reclosing	Boolean	True if the protection equipment is reclosing or False otherwise.
relayDelayTime	Float	The time delay from detection of abnormal conditions to relay operation in seconds.
thresholds	RelaySettingList	The thresholds for this relay function. The order of thresholds corresponds to the order of time limits.
timeLimits	FloatList	The time limits (in seconds) for this relay function. Order of entries corresponds to the order of entries in thresholds.

Relationships

Ancestors

• PowerSystemResource

Descendents

• CurrentRelay
• DistanceRelay
• VoltageRelay

Associations

Source Class	Source Cardinality	Target	Target Cardinality	Source Name	Source Assoc. Description	Target Name	Target Assoc. Description
ProtectionRelayFunction		RelaySetting	0..*			Thresholds	The thresholds for this relay function. The order of thresholds corresponds to the order of time limits.
ProtectionRelayFunction	0..*	ProtectedSwitch	0..*	RelayFunctons	The ProtectionRelayFunctions operating this ProtectedSwitch.	ProtectedSwitches	The ProtectedSwitches operated by this ProtectionRelayFunction.
ProtectionRelayFunction	1..*	Sensor	0..*	RelayFunctions	The relay functions influenced by this Sensor	Sensors	The Sensors for this relay function.
ProtectionRelayFunction	0..*	ProtectionRelayScheme	0..*	Functions	The functions operated as part of this protection scheme.	Schemes	The schemes this function operates under.