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SurgeArresterInfo

Class Description

Properties of surge arrester.

Attributes

NameTypeDescription
continuousOperatingVoltageVoltageMaximum continuous power frequency voltage allowed on the surge arrester.
isPolymerBooleanIf true, the arrester has a polymer housing, porcelain otherwise.
lightningImpulseDischargeVoltageVoltageResidual voltage during an 8x20 microsecond current impulse at the nominal discharge current level.
lineDischargeClassIntegerDetermines the arrester energy discharge capability. Choices are limited to 0 (none) through 5 (highest) by IEC 60099. Classes 1..3 require a 10-kA nominal discharge current. Classes 4..5 require a 20-kA nominal discharge current. Lower nominal discharge currents must use class 0.
nominalDischargeCurrentCurrentFlowThe lightning discharge current used to classify the arrester. Choices are limited to 1.5, 2.5, 5, 10, and 20 kA by IEC 60099.
pressureReliefClassCurrentFlowFault current level at which all parts of the failed arrester lie within a circle prescribed by IEC 60099.
ratedVoltageVoltageThe temporary overvoltage (TOV) level at power frequency that the surge arrester withstands for 10 seconds.
steepFrontDischargeVoltageVoltageResidual voltage during a current impulse with front time of 1 microsecond, and magnitude equal to the nominal discharge current level.
switchingImpulseDischargeVoltageVoltageResidual voltage during a current impulse with front time of at least 30 microseconds, and magnitude specified in IEC 60099 for the line discharge class. Does not apply to line discharge class 0.

Relationships

Ancestors

Descendents

No descendent classes

Associations

None