American Power Conversion 250 A manual How the InfraStruXure Power Generation, System Operates

Page 16
RestoredUtility
Load
Powered
by Generator

How the InfraStruXure Power Generation

System Operates

Operation of the ATS during a utility failure when automatic operation is enabled

Your data center equipment is typically powered by the utility [Source 1] (), while the generator [Source 2] remains off. When the level of incoming utility power falls below a specified threshold (), the ATS signals the generator to start (). After the generator starts and attains the necessary power to support the load, the ATS performs an open transfer to the generator ().

 

Load

 

Powered by

 

 

Utility.

 

Generator

Generator Stopped

 

is Off

 

 

 

 

 

Utility Failure

Generator

 

Cool-Down

Generator

 

 

Start

 

Sequence

Retransfer to

Generator Started

Utility

 

(Open or Closed)

 

 

Open Transfer

 

to Generator

The generator then continues to support your data center

equipment () until an

acceptable flow of utilitypower is restored (). The

utility power must remain

stable for a specified length of time (Line Stable setting) and the generator must run for at least the duration of its minimum run-time (Min on Gen setting) before the load will be retransferred to the utility (). The retransfer to the utility can be either open or closed. Following retransfer, the generator cools down () and eventually stops.

For more information.

See page 33 for a description of how the ATS determines the line quality is bad. See page 7 for a detailed description of the generator start sequence.

See page 8 for detailed descriptions of open and closed transfers. See page 7 for a detailed description of generator cool-down. See page 35 for information about the Line Stable setting.

See page 35 for information about the Min on Gen setting.

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InfraStruXure Power Generation System

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Contents Operation Page How to find updates to this manual About This ManualAudience Companion manualsPage Contents Display Interface Communication Configuration Customizing and Updating the ATS Specifications Page Cross-reference symbols used in this manual Safety symbols used in this manualOverview Wire sizing Total power off procedure InstallationOperating environment Page InfraStruXure Power Generation System OverviewHow the InfraStruXure Power Generation System OperatesGenerator start sequence Generator cool-downOpen and closed transfers Fuel monitoring/runtime calculation Page Smart Distribution Panel with ATS Front view, door closedFront view, door open  The automatic operation Control panel is used to setInstallation Manual for instructions ATS panel board, left sideATS panel board, right side Motorized switches ATS Component DetailsAutomatic operation control panel User connection plate When the EPO Arm/Test rocker is in the Test ATS monitoring unitATS label kit Operation Automatic OperationAutomatic Operation Problem-loss of automatic operation Emergency Manual Operation How to power the load from the generator Set the ATS Automatic Operation switch to DisableEmergency Manual Operation How to return to powering the load from utility Press Total Power Off Total Power Off Display Interface Top-level status screens Top-level menu screenPassword-protected screens Navigating through screensTotal Load by Phase Power FactorLoad-Meter Total Load SummaryATS Position ATS/VoltageS1-Utility S2-Generator ATS Setup ATS/Voltage Generator Generator StatusGen Output Adjust Operating SettingsManufacturer Data View Test Log TestingRun/View Test Test Schedule Test DurationHow a test occurs Reset All ResetStats Alarms View Active AlarmsAlarm/Event Log Alarm SetupAlarm Beeper Clearing latched alarmsFuel Alarm Limits Other LimitsConfig System PasswordSystem/Network Date/TimePage Electrical Config Factory DefaultsFirmware Updates Reset 100% Fuel LevelPage ATS Management Options OverviewInfraStruXure Manager Network management interfacesConfiguring the InfraStruXure Manager Connect the ATS to the InfraStruXure ManagerConfiguring the ATS Network Management Interface Connect the ATS to your networkTCP/IP configuration methods Configuration overviewDevice IP Configuration Wizard Bootp & Dhcp configuration Option 43 = 01 04 31 41 50 43 where Local access to the control console Remote access to the control consoleControl console Choose Network from the Control Console menuHow to Access the ATS Network Management Interface Web interfaceTelnet and SSH SnmpFTP and SCP InfraStruXure Power Generation System Customizing and Updating the ATS How to connect contacts to the user interface board How to Connect an EPO Switch to the ATS EPO Test NC noContact Closure-Normally Open Problem Action Safety warnings How to Allow Easy Access to the ATS Display Interface Output distribution circuit breakers available from APC Part Number Description Height on PanelDetermine the configuration of the panel Circuit breaker adapter modules available from APCAllowed circuit breaker combinations Combination #1Combination #6 Preparing the breakers for installation T1 three-pole breaker requires no additional preparationParts and tools needed for installation procedures T1 three-pole breaker assemblyInstalling breakers on the ATS panel bus See also How to Download Firmware Updates From a local computerElectrical PhysicalInstallation and Wiring 208V 480V AWGEnvironmental CompliancePage Appendix Custom Installations If Source 2 is a Second UtilityInfraStruXure Power Generation System Index InfraStruXure Power Generation System InfraStruXure Power Generation System Page Page Page Radio Frequency Interference 990-1845C
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