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MW II
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Contents
Main
Installation
Symmetra MW II
Normal
UPS Summary
1200 kW 400 V
Page
Contents
Safety ............................................... .......................1
System Overview............................ ..........................3
UPS Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
External Bypass Static Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Specifications ........................................................ 17
Required Breaker Settings (400 V Systems) . . . . . . . . . . . . . . . 20
Appendix ...................................................... ........ 23
TT Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
IT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Safety
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
EPO
Symbols used in this guide
Installation safety
Page
System Overview
UPS Sections
Serial number
Inverter Section
Control/Input/Output Section
External Bypass Static Switch
Serial number
5Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001
Electrical Installation
Typical UPS Wiring Principle
Power wiring overview
See separate guide on parallel operation for wiring overview in parallel systems.
External disconnection switches
Input/Output wiring precautions
Page
Battery cables connection
9Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001
X405
UPS Summary
~~
External Bypass Static Switch Wiring
11Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001
Top cable entry
L3 OUT
L2 OUT
Communication cable overview
X184
UVR
31
X181
Relay Boards
Relay board 1 connections
Relay board 2 connections
Page
Specifications
Low-Impedance/High-Impedance Earthing
Electrical Specifications
AC Input
DC Input
AC Output
AC Input External Bypass SSW
Heat dissipation
Notes
Torque specifications
Required Breaker Settings (400 V Systems)
Input and upstream breakers
Output and downstream breakers
Page
Appendix
System and Protective Earthing
TN Systems
Reference to IEC 60364-4-41 413.1.3
Reference to IEC 60364-5-54 546.2.3
Additional requirements for generating sets (IEC 60364-5-55 551.4.2)
Protective devices in TN systems
TT Systems
Reference to IEC 60364-4-41 413.1.4
Protective devices in TT systems
IT Systems
Reference to IEC 60364-4-41 413.1.5
Protective devices in IT systems
Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-00128
Symmetra MW
See: IEC 60364-4-41 413.1.3
Switchgear
box
29Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-001
Symmetra MW
See: IEC 60364-4-41 413.1.4 and "Strkstrmsbekendtgrelsen" 551.6.3, Note
( 551.6.3 is missing in IEC 60364-5-55 )
Strkstrmsbekendtgrelsen 551.6.3 Note
Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-00130
Symmetra MW
See: IEC 60364-4-41 413.1.3
box
breaker
31Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-001
Symmetra MW
See: IEC 60364-4-41 413.1.3
This system configuration is not recommended
Switchgear
Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-00132
Symmetra MW
Owing to parallel return path for the fault current
used at this point.
Residual current protective device can not be
33Symmetra MW II 1200 kW 3 400/230 V Installation - 990-1979E-001
Symmetra MW
impedance
Grounding
Z
Page
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4/2009990-1979E-001 *990-1979E-001*
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