Toshiba 300 KW manual

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

Contents

G8000 Series Page Document July Qualified Personnel only Uninterruptible Power System UPS Toshiba Customer Support Center PurposeToshiba’s Customer Support Center Toshiba International Corporation Table of Contents 11.4 Introduction Prohibited Symbol indicates do not take action General Safety InstructionsSymbols Signal Words Qualified Personnel Important Safety Instructions Factory Authorized Personnel Safety Precautions Disclaimer Transporting/Unpacking General MaintenanceKeep the area arround the UPS clean Do not tilt the UPS more than 10 from upright position Do not transport, move, store, or place the UPS on its side Avoid vibration or shock exceeding 0.5G Inspection/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 vents Installation Precautions Environment standard Metal Conduit is not AN Acceptable Ground Conductor Routing and Grounding Connect only one 1 ground wire to the earth ground terminal Wiring/ConnectionPerform wiring and connections with correct polarity Follow the torque criteria for tightening screws For 100, 150, 225KVA GND 150/225 KVA UPS Warning Labels Weight and Dimensions Model Unit Shipping 300 KVA UPS Exterior Dimensions Inches Transporting Transporting By Crane 8.5 show examples of acceptable and unacceptable operations Transporting By Forklift Transporting UPS by Forklift Operating 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 Clearance Anchor Bolt Installation Detail Anchor Bolts UPS Wiring External Wiring Diagram 11.1 100 kVA Terminal Blocks and Power Cables Block Number Cable Size Tightening Torque AC Input Bypass Input AC Output Battery YA36L Block Number Cable Size Recommended Fastener Torque Bus Number Cable Size Recommended Fastener Torque UPS Power Cable Knockout Plates Bottom Cable Knockout Plates for 100 KVA T80S3K10KK6XS2H Plate #2 Plate #3 Terminal Knockout Plates for the 300 KVA UPS Be 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 Grounded Grounding Configuration without input neutral Recommended Configuration for delta-input Grounding Configuration with corner-grounded delta-input 16 Grounding Configuration with CORNER-GROUNDED DELTA-INPUT Mechanical Specification UPS SpecificationsGeneral Specification Terms Specification Remarks Nominal Capacity 150 kW 225 kW 300 kW Electrical Specification Do not open the front cover Operator Interface UPS may not respond if the button press is too short Key-Switch and Buttons Graphic Display Panel KEY-SWITCH/OPERATING Buttons 13.2 LCD/LED Indicators Graphic Display Panel LCD/LED Indicators LCD Indicators Name Description Volt 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 32TIM Fault Display 09-09-06 LCD Scroll Abbreveations EPO and Control Power Supply Operating Switches Operating the UPS Perform the pre-operational check before operating the UPS Operation TypesPre-operational Check Startup Procedures Procedure to start the UPS is shown in Steps AC Vo 480 AC Io 50% Switch Power Supply UPS→Bypass Bypass LED is on Stop Complete Shutdown DC-V 0 BATT-V 0 BATT-I 0 a Changing Between Float Charge and Equalize Charge Make sure that the Float Charge LED is on Make sure that the Equal Charge LED is on Types of Errors TroubleshootingEmergency Power Off EPO Faults and Warnings Data Screen 09-09-06 LCD Fault & Warning Displays Fault Display Fault Messages LCD Message Indication Description LCD Message Indication Description LCD Scroll w/ faults or warnings Reset Do 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