Page 3 - Contents
Contents Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 i Safety ......................................................................1 IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Symbols used in this guide . . . ....
Page 5 - Safety; IMPORTANT SAFETY INSTRUCTIONS; Symbols used in this guide; Indicates important information.; Installation safety; breakers are in the open position.; EPO
1 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Safety IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS This guide contains important instructions for SYMF1200KH that should be followed when handling the UPS, External Bypass Static Switch, Battery Enclosures, and Batteries...
Page 6 - circuits in the units.; start without any warning when power is applied.
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 2 Warning: Do not use high voltage testing equipment as it will destroy the electronic circuits in the units. Caution: The system is equipped with an optional auto-start function enabling the system to start without any warning when p...
Page 7 - System Overview; UPS Sections; Serial number; Inverter Section
3 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 System Overview UPS Sections The UPS system consists of two 600 kW Inverter Sections, a Control/Input/Output Section and an External Bypass Static Switch Section. Serial number The serial number is stated on the type label behind th...
Page 8 - External Bypass Static Switch; MW External Bypass Static Switch
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 4 External Bypass Static Switch The External Bypass Static Switch (External Bypass SSW) transfers the load (manually or automatically) from the UPS to an alternate source without interrupting the supply to the load. Serial number The ...
Page 9 - Electrical Installation; Typical UPS Wiring Principle; Power wiring overview
5 Symmetra 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. Maintenance Bypass Panel (MBP) Symmetra MW External Bypass Static Switch Ba...
Page 10 - Use only copper conductors.
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 6 External disconnection switches Warning: The UPS has no built-in disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power. Ensure that the disconnect devices are available as separate components for th...
Page 11 - AC and PE cable connections; No drilling or cutting should take place over the top of the UPS.
7 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 AC and PE cable connections Note: No drilling or cutting should take place over the top of the UPS. ~ ~ UPS Sum mary Normal L1 IN L1 OUT L2 IN L2 OUT L3 IN L3 OUT N For AC and PE grommets For AC and PE grommets For battery grommets ...
Page 12 - Battery cables connection; manufacturer’s installation manual.
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 8 1. With the top covers removed, drill holes for AC, PE and Battery grommets in areas shown. 2. Re-fit the covers and install the grommets. 3. Feed AC and PE cables through grommets in the Control/Input/Output Section. 4. Connect PE ...
Page 13 - The battery cables can be connected on either side of the busbar.
9 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 1. Feed the battery cables through the grommets.2. Connect battery cables to Bat 1+ and Bat 1-.3. Connect battery cables to Bat 2+ and Bat 2-. Note: The battery cables can be connected on either side of the busbar. X022 X021 X007 X0...
Page 14 - External Bypass Static Switch Wiring; national regulations.
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 10 External Bypass Static Switch Wiring Warning: Before you start the installation, verify that all AC and DC power source breakers are in the open position. Warning: Use only manual reset protection as input over-current protection. ...
Page 15 - Top cable entry; Loosen the 8 bolts to remove top cover.; Top view of top cover
11 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Top cable entry 1. Loosen the 8 bolts to remove top cover. Note: No drilling or cutting should take place over the top of the UPS. 2. Drill holes for grommets. 3. Re-fit the covers and install the grommets.4. Feed the cables throug...
Page 16 - Communication cable overview; Contact APC Application Team for correct
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 12 Communication cable overview C onnec tio n p la ne 0P 09 57 X131 X130 External EPO placed on wall X133A 2 1 X185 UPS EM O ( D is p la y) X134A X128 1 1 2 2 X129 1 2 B ac kf eed p rot e ct ion EPO out EPO out C on n ec tio n pl an e...
Page 17 - Relay Boards; Location of relay boards; Relay boards
13 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Relay Boards Location of relay boards Communication cables with optional Relay Board ~ ~ UPS Summary No rma l Relay boards Fan CAN X008A Backplane X008A
Page 18 - Relay board 1 connections; Relay
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 14 Relay board 1 connections Relay Function Mode Special Comments Output 1 Common alarm Fail safe Output 2 Normal operation Active on Output 3 Bypass operation Active on Output 4 Battery operation Active on Output 5 V DC out of tolera...
Page 19 - Relay board 2 connections
15 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Relay board 2 connections Input 7 Reserved for future use Input 8 Reserved for future use Relay Function Mode Special Comments Output 1 Info level alarm Fail safe Output 2 Warning level alarm Fail safe Output 3 Severe level alarm F...
Page 21 - Specifications; The Symmetra; Electrical Specifications; Max. prospective RMS short-circuit current on DC terminals: 50 kA
17 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Specifications Low-Impedance/High-Impedance Earthing The Symmetra ® MW is easily integrated into either a solid grounded system, or a high-impedance grounded system. In a solid grounded system, the neutral power source (mains, gene...
Page 22 - AC Input; Input Voltage; DC Input
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 18 AC Input DC Input Caution: Over-current protection for the battery circuit is required by code. The minimum DC voltage rating of the battery supply over-current protection device is 500 V. AC Input Input rating 1200 kW/kVA Power Fa...
Page 23 - AC Output; AC Input External Bypass SSW
19 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 AC Output AC Input External Bypass SSW The External Bypass SSW is designed to accommodate a continuous overload of 25%. Heat dissipation 37.1 kW / 126.7 kBTU/hr (note 6). Notes 1. Nominal (Nom): Input current based on rated load, n...
Page 24 - Required Breaker Settings (400 V Systems); Input and upstream breakers; Torque specifications
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 20 Torque specifications Required Breaker Settings (400 V Systems) Note: Contact APC Application Team for Required Breaker Settings in 380 V and 415 V systems. The Symmetra® MW is a fault-tolerant system capable of handling and surviv...
Page 25 - Output and downstream breakers; replaced by a link with an infinitely small impedance
21 Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 Output and downstream breakers In the absence of a proper breaker coordination study and if only the actual Ip on the unit’s input terminals is known, this table must be used to optimize the instantaneous trip setting or to choose ...
Page 26 - and breaker frame sizes.
Symmetra MW II 1200 kW 3 x 400/230 V Installation - 990-1979E-001 22 Note: The instantaneous trip setting must not be derated even though the UPS system is derated in system output power. The system size has no influence on the instantaneous trip setting. Note: For derated systems, the APC Applicati...
Page 27 - Appendix; System and Protective Earthing; Characteristics; part of the system
23 Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-001 Appendix System and Protective Earthing The purpose of this appendix is to describe the system- and protective earthing principles of the Symmetra ® MW. Caution: All wiring to be in accordance with applicable national and/or local ...
Page 28 - Protective devices in TN systems; The following protective devices are recognized in TN systems:
Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-001 24 If there are other effective earth connections, the protective conductors must be connected to such points when it is possible. It may be necessary to earth at additional points to ensure that the potentials of protective conductor...
Page 29 - TT Systems
25 Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-001 If a fault occurs close to the UPS (before the power distribution) while the UPS system is in Battery Operation and Bypass is unavailable, the available power is unable to activate the protective device. In that situation the Inver...
Page 30 - IT Systems
Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-001 26 For discrimination purposes, S-type residual current protective devices may be used in series with general type residual current protective devices. To provide discrimination with S-type residual current protective devices, an oper...
Page 31 - Protective devices in IT systems
27 Symmetra MW II 1200 kW 3 × 400/230 V Installation - 990-1979E-001 Depending on whether all exposed conductive parts are interconnected by a protective conductor (collectively earthed) or are earthed in groups or individually, after a first fault, the disconnection conditions of the supply for a s...
Page 40 - APC Worldwide Customer Support; Global support searching APC Knowledge Base and using e-support.; Customer Support Center by telephone or e-mail.
4/2009 990-1979E-001 *990-1979E-001* APC Worldwide Customer Support Customer support for this or any other APC product is available at no charge in any of the following ways: • Visit the APC Web site to access documents in the APC Knowledge Base and to submit customer support requests.– www.apc.com ...
