Chap.2FaultsonPowerSystemsPart1FaultsandItsDamageWordsandExpressions(A)bringaboutreliabilityequipmentfailurefaultdeliverymetallicarcinthecaseofmetal-to-metalcontacts

Chap.2FaultsonPowerSystemsincasetheconnectionisthroughanarcmagnitudethepointoffaultshortcircuitutilizationequipmentinsulationfeed

Chap.2FaultsonPowerSystemsNotes1.Eachyearnewdesignsofpowerequipmentbringaboutincreasedreliabilityofoperation.

Chap.2FaultsonPowerSystems2.Ifthefaultedequipmentisnotpromptlydisconnectedfromtheremainderofthesystem,damagemayresulttootherpiecesofoperatingequipment.

Chap.2FaultsonPowerSystems3.Afaultistheunintentionalorintentionalconnectingtogetheroftwoormoreconductorswhichordinarilyoperatewithadifferenceofpotentialbetweenthem.

Chap.2FaultsonPowerSystems4.Theseshort-circuitcurrentswillusuallybemuchgreaterthanthedesignedthermalabilityoftheconductorsinthelinesormachinesfeedingthefault.

Chap.2FaultsonPowerSystems5.Itisapparentthatthepowersystemdesignermustanticipatepointsatwhichfaultsmayoccur,beabletocalculateconditionsthatexistduringafault,andprovideequipmentproperlyadjustedtoopentheswitchesnecessarytodisconnectthefaultedequipmentfromtheremainderofthesystem.

Chap.2FaultsonPowerSystemsPart2overloadWordsandExpressions(A)overloadundervoltageresidentialfusedistributiontransformerappliancemonitor

Chap.2FaultsonPowerSystemsNotes1.Anoverloadimpliesonlythatloadsgreaterthanthedesignedvalueshavebeenimposedonsystem.

Chap.2FaultsonPowerSystems2.Suchanoverload,ifpermittedtocontinues,wouldcauseheatingofthewiresfromthepowercenterandmighteventuallystartafire.

Chap.2FaultsonPowerSystems3.Thecontinuousmonitoringofdistributioncirc