Toshiba 300 KW operation manual Grounding Configuration with corner-grounded delta-input

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11.7.4Grounding Configuration (with corner-grounded delta-input)

If one phase of delta-input source is grounded (B-phase for example), the ground bus in the UPS cabinet should NOT be connected to the neutral terminal of UPS output.

The jumper cable should be removed see Figure 11.13 for the jumper cable location.

During normal operation the UPS output is floating relative to the ground. An isolation transformer is recommended at output distribution as shown in Figure 11.16.

Input Source	< UPS Cabinet >

3φ 3φ

Bφ N

3φ 3φ

GG

Output Distribution

3φ 3φ

3φ	N	To the
3φ		To the
N		Load
N
G	G

Remove

Jumper Cable

FIGURE 11.16 - GROUNDING CONFIGURATION WITH CORNER-GROUNDED DELTA-INPUT.

42	G8000 Series Installation and Operation Manual

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Contents G8000 Series Page Document July Qualified Personnel only Uninterruptible Power System UPS Toshiba Customer Support Center PurposeToshiba’s Customer Support Center Toshiba International CorporationTable of Contents 11.4 Introduction Prohibited Symbol indicates do not take action General Safety InstructionsSymbols Signal Words Qualified PersonnelImportant Safety Instructions Factory Authorized PersonnelSafety Precautions DisclaimerTransporting/Unpacking General MaintenanceKeep the area arround the UPS clean Do not tilt the UPS more than 10 from upright positionDo not transport, move, store, or place the UPS on its side Avoid vibration or shock exceeding 0.5GInspection/Storage Keep the Specified Clearance around the UPS Installation PrecautionsInstall the UPS in a controlled environment Do not install the UPS where water may fall on it Do not block air ventsInstallation Precautions Environment standardMetal Conduit is not AN Acceptable Ground Conductor Routing and GroundingConnect only one 1 ground wire to the earth ground terminal Wiring/ConnectionPerform wiring and connections with correct polarity Follow the torque criteria for tightening screwsFor 100, 150, 225KVA GND 150/225 KVA UPS Warning Labels Weight and Dimensions Model Unit Shipping300 KVA UPS Exterior Dimensions Inches Transporting Transporting By Crane 8.5 show examples of acceptable and unacceptable operationsTransporting By Forklift Transporting UPS by ForkliftOperating Precautions Storage/Operating EnvironmentPage Qualified Personnel shall Maintenance PrecautionsQualified Personnel only Do not open or mutilate the batteries DisposalDo not dispose of the batteries in a fire Installation Unpacking UPS ClearanceAnchor Bolt Installation Detail Anchor BoltsUPS Wiring External Wiring Diagram11.1 100 kVA Terminal Blocks and Power Cables Block Number Cable Size Tightening TorqueAC Input Bypass Input AC Output Battery YA36L Block Number Cable Size Recommended Fastener TorqueBus Number Cable Size Recommended Fastener Torque UPS Power Cable Knockout Plates Bottom Cable Knockout Plates for 100 KVA T80S3K10KK6XS2HPlate #2 Plate #3 Terminal Knockout Plates for the 300 KVA UPSBe sure to ground the UPS as specified Grounding WireExternal Breakers G8000 100 kVA G8000 150/225 kVA Control Wires Signal Name Operation 11 Connection Between UPS, Battery Cabinet & Bypass Breaker Grounding Configuration 12 Grounding Configuration with Input Neutral GroundedGrounding Configuration without input neutral Recommended Configuration for delta-inputGrounding Configuration with corner-grounded delta-input 16 Grounding Configuration with CORNER-GROUNDED DELTA-INPUTMechanical Specification UPS SpecificationsGeneral Specification Terms Specification RemarksNominal Capacity 150 kW 225 kW 300 kW Electrical Specification Do not open the front coverOperator Interface UPS may not respond if the button press is too shortKey-Switch and Buttons Graphic Display Panel KEY-SWITCH/OPERATING Buttons13.2 LCD/LED Indicators Graphic Display Panel LCD/LED IndicatorsLCD Indicators Name DescriptionVolt Freq .0Hz Normal DisplayAC-VO AC- I O 50% 50%DC-V BATT-V BATT- I 0A AC I/P-V Freq .0HzBYP I/P-V Freq .0Hz 32TIMFault Display 09-09-06LCD Scroll AbbreveationsEPO and Control Power Supply Operating Switches Operating the UPSPerform the pre-operational check before operating the UPS Operation TypesPre-operational Check Startup Procedures Procedure to start the UPS is shown in StepsAC Vo 480 AC Io 50% Switch Power Supply UPS→Bypass Bypass LED is onStop Complete Shutdown DC-V 0 BATT-V 0 BATT-I 0 aChanging Between Float Charge and Equalize Charge Make sure that the Float Charge LED is onMake sure that the Equal Charge LED is on Types of Errors TroubleshootingEmergency Power Off EPO Faults and Warnings Data Screen 09-09-06LCD Fault & Warning Displays Fault DisplayFault Messages LCD Message Indication DescriptionLCD Message Indication Description LCD Scroll w/ faults or warnings ResetDo not attempt to modify or relocate the UPS Contact Toshiba in the event of malfunction or faultRestoring UPS Operation Do not open the front and/or rear panelsPage Page Industrial Division