Table of Contents
FOREWORD
Part2-STATICACTRANSFEREQUIPMENT
1SCOPE
1.1General
1.2Normativereferences
2DEFINITIONS
2.1TransferEquipment
2.2Operationofstatictransferequipment
3CLASSIFICATIONS
4CHARACTERISTICSANDRATINGS
4.1RatedandLimitingValuesfortheMain(Power)Circuit
4.1.1SystemVoltageRatings
4.1.2ContinuousCurrentRating
4.1.3RatingBasedonLoadCharacteristics
4.1.4InterruptingRating
4.1.5MotorStarterRating
4.1.6WithstandandClosingRatings
4.1.7OvercurrentProtection
5PRODUCTMARKING,INSTALLATION,ANDMAINTENANCEINFORMATION
5.1Markings
5.1.1TransferEquipment
5.1.2BypassIsolationSwitchEquipment
5.1.3ControlCircuits
5.2MaintenanceofTransferEquipment
6SERVICEANDSTORAGECONDITIONS
7CONSTRUCTION
7.1Spacings
7.2TestSwitch
7.3InterlocksandProtectiveCircuits
7.3.1ProtectionfromCross-Connection
7.3.2BypassIsolationSwitchInterlock
7.4ServiceEquipment
7.5EmergencyPowerCircuitService
7.6ControlCircuits
8PERFORMANCEREQUIREMENTS
8.1PerformanceRequirements
8.1.1ControlCircuits
8.1.2Ground-FaultProtection
8.1.3UndervoltageMonitoringCharacteristics
8.2DesignTests
8.2.1RequiredTesting
8.2.2OptionalPerformanceVerification
9APPLICATION
9.1ACTransferEquipmentSpecification
9.2PowerQuality
9.3MotorTransfer
9.4FeaturesforParticularApplications
9.5ConsiderationsforNon-LinearLoadApplications
9.6GraphicalSymbolforStaticTransferEquipment
ANNEXANon-Linearloads
A.1General
A.2Non-LinearElectricalLoad
A.3CrestFactor(CF)ofaSystem
ANNEXBShortTimeRating
ANNEXCNeutralConductorsinPowerTransferSystems
C.1SeparatelyDerivedSources
C.2Non-SeparatelyDerivedSources Abstract
Applies to static automatic and static non-automatic transfer equipment without cross-connection of sources during transfer or retransfer, with or without bypass isolation switches rated 600 volts AC or less, not exceeding 6000 amps, for use on single-phase and polyphase AC circuits.
