MGE UPS Systems 40-150kVA user manual Power Flow, For Normal Operation

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Operation

3.0Scope

Important information on the Comet 40-150kVA systems’ operation procedure sequences; for normal, on battery, and bypass operation, with descriptions of the control and display indicators.

3.1Power Flow

3.1.1Power Flow, For Normal Operation

During normal operation the AC input source supplies the Rectifier, which converts the incoming AC power to DC. The rectifier in turn supplies the Inverter, which converts DC power to AC to supply the attached load (see Figure 3-1).

Figure 3-1: Power Flow, For Normal Operation.

BYPASS

INPUT

(OPTIONAL)

MAIN

INPUT

STATIC SWITCH

RECTIFIERINVERTER

TO LOAD

BATTERY

3.1.2Power Flow, For On Battery Operation

When AC input power fails, the UPS goes to on-battery operation. DC power is supplied from the UPS battery system to the inverter, which converts battery power (DC) to AC power to supply the attached load (see Figure 3-2).

Figure 3-2: Power Flow, For On Battery Operation.

STATIC SWITCH

BYPASS

INPUT

(OPTIONAL)

RECTIFIERINVERTER

MAIN

INPUT

TO LOAD

BATTERY

86-160310-00 E00

Operation

3 —1

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Contents Comet 40-150kVA Page Revision History CometComet 40-150kVA Important Safety InstructionsSafety of Persons Certification Standards Three Phase UPSProduct Safety Special PrecautionsThis page left blank intentionally Contents Operation MaintenanceWarranty and Product Registration MGE Warranty & Proprietary Rights for Three Phase ProductsCustomer Care Center Three Phase Products TablesUPS Serial Number Battery Serial Number This page left blank intentionally 86-160310-00 E00 Section Descriptions Comet 40-150kVA Symbol UsageSystem Description and Specifications ScopeGeneral Description Single Line Diagram for the Comet 40-80kVA Major Components Detail Behind Item Rear View of the Comet 40-80kVA FU1-FU21 Control Fuses TOP Conduit Landing for Cable Access to Pcas Specifications Wires PhasesPower factor DC Ratings Battery voltage 25 C6 DB15 Connector Pinouts and Designations Environmental Specifications TemperatureHumidity AltitudeOptions and Accessories Chaptername This page left blank intentionally Receiving InstallationHandling For assistanceStorage Prerequisite to InstallationMay adversely affect life EnvironmentalProper trip settings Short circuit when the unit is working on Static SwitchMechanical ElectricalConnections Installation ProceduresAC Output BatteryChaptername This page left blank intentionally Power Flow, For Normal Operation Power FlowPower Flow, For On Battery Operation OperationPower Flow, For Bypass Operation Graphical User Interface, Controls and IndicatorsComet Front Panel GUI, Controls and Indicators Fault LED Emergency Power OffBattery Status LED Fault ResetStartup Procedures Inverter Manual StartupPreliminary Checks Operation on Battery Power Operating ProceduresBattery Duration Return to AC PowerOutput Current Overload Curve Emergency Shutdown Using EPO/REPO Maintenance BypassForced Transfer Move the fan control switch SR2 to the OFF position Alarms Shutdown ProceduresPowering Down Inverter ShutdownMaintenance Battery SafetyPreventive Maintenance Level Description Replacement PartsApplicable within the United States, Canada and Mexico Warranty Extension Warranty+ User InformationProduct Information Technical Support and Product Services MGE Customer Care Center Three Phase ProductsScheduling Field Service Engineer Support Return Policy for Repair of Three Phase Products RGAComet 40-150kVA Term used Definition / Meaning GlossaryFCC NEC This page left blank intentionally Reorder Form Scenic Avenue Costa Mesa, CA Page Page Contact MGE