Symmetra MW UPS 800 kW 400 V Installation Guide
Contents Safety ......................................................................1 IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Symbols used in this guide . . . . . . . . . . . . . . . . . . . . . . . . . 1 Installation safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 System Overview......................................................3 UPS Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bottom Cable Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Preparing for bottom cable entry . . . . . . . . . . . . . . . . . . . . 13 Battery cable connection (bottom cable entry) . . . . . . . . . . . 15 PE and AC cable connections (bottom cable entry) . . . . . . . . 17 External Bypass Static Switch Wiring . . . . . . . . . . . . . . . . . . . . 18 Top cable entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Bottom cable entry . . . . . . . . . . . . .
TT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 Reference to IEC 60364-4-41 413.1.4 . . . . . . . . . . . . . . . . . 37 Protective devices in TT systems . . . . . . . . . . . . . . . . . . . . . 37 IT Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS This guide contains important instructions for 800K800H that should be followed when handling the UPS, External Bypass Static Switch, Battery Enclosures, and Batteries. Symbols used in this guide WARNING! Indicates an electrical hazard, which, if not avoided, could result in injury or death. CAUTION! Indicates a hazard, which, if not avoided, could result in injury or death. Indicates important information.
Safety: IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS Installation safety EPO Press the optional EPO (Emergency Power Off) button to switch off all AC and DC power supply to connected equipment in the room and to cut off the load supply. The EPO is typically located on a wall in the room in which the UPS is installed. See “Communication cable overview” section for information on how to wire the UPS to the EPO.
System Overview UPS Sections Serial number The serial number is stated on the type label behind the finishing panel above the display unit. Remove finishing panel to see serial number. Inverter Section The Inverter Section regulates the UPS output and operates from battery power in the event of utility input loss. Control Section The Control Section controls and monitors the UPS and the Mains Static Switch Module (incorporated in the Control Section).
Configurations The UPS system can be configured in two ways. The Inverter Section can be placed either to the left or to the right of the Control Section. The two configurations are shown below.
System Overview: Configurations 2032 mm Configuration 2 (Inverter Section placed to the right) 1067 mm Input/Output Section Control Section Inverter Section Width: 1014 mm Width: 1012 mm Width: 1690 mm Weight: 480 kg Weight: 610 kg Weight: Without Power Modules: 2456 kg With Power Modules: 3130 kg Total width of UPS sections: 3716 mm Total weight of UPS sections: 4220 kg Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B 5
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. ~ ~ 2032 mm 1067mm External Bypass Static Switch Width: 1016 mm Weight: 1 MW: 460 kg Serial number The serial number is stated on the type label behind the finishing panel above the display unit. Remove finishing panel to see serial number.
MAINS 9. 13. 14. 6. UPS AND STATIC BYPASS WITHSTAND RATING, Icw = 200 KA 7. SEE THE INSTALLATION GUIDE FOR THE BREAKER SETTINGS OF Q1, Q3, Q4 AND Q5. 11. 12. 4. ALL AC POWER CABLING IS L1,L2,L3,N,PE. 5. UPS INPUT AND OUTPUT CONDUCTORS MUST BE IN SEPARATE CABLE RUNS. WITH 24VOLT DC UNDER VOLTAGE RELEASE (UVR) AND 2NO/2NC AUXILIARY CONTACTS. 3. Q7, Q8 DC RATED THERMAL MAGNETIC TRIP MOLDED CASE CIRCUIT BREAKER. 10. 8. - Q6 WITH 2NO/2NC AUXILIARY CONTACTS. 2.
Electrical Installation: Typical UPS Wiring Principle External disconnection switches WARNING! The UPS has no internal manual disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power. Ensure that disconnection devices are available as separate components for this installation.
Top Cable Entry Preparing for top cable entry (Default) Cable entry in Top Cover of Input/Output Section. Top view M6 Bolt 44.45 mm DC cable entry AC IN cable entry DC cable entry 44.45 mm 58 mm AC OUT cable entry IN/OUT power cable (top entry) BAT 1 BAT 2 Top view AC IN AC OUT 90 L3 IN 95 L3 OUT 91 L2 IN 94 L2 OUT 92 L1 IN 93 L1 OUT L1 IN L2 IN 92 93 91 94 90 95 L1 OUT L2 OUT L3 IN L3 OUT N N Loosen the 8 bolts in both cable entry covers (4 bolts in each cover).
Electrical Installation: Top Cable Entry Install cable lugs on busbars. Use M12 bolts. Feed cables through the top grommets. Connect L1, L2 and L3 to busbars where indicated. Battery cable connections (top cable entry) WARNING! Make sure that the battery breakers are open (OFF) prior to running the cables. CAUTION! Refer to the battery manufacturer’s installation manual. CAUTION! The minimum DC voltage rating of the battery supply over-current protective device is 500 V.
Electrical Installation: Top Cable Entry Top view of Input/Output Section M6 Bolt 44.45 mm 44.45 mm 58 mm DC cable entry AC IN cable entry DC cable entry AC OUT cable entry IN/OUT power cable (top entry) Battery 1 (DC1 +/-) Battery 2 (DC2 +/-) BAT1BAT1- BAT2+ BAT2+ L1 In L1 Out L2 In L2 Out L3 In L3 Out BAT1+ BAT2— N N BAT1+ BAT2- Input/Output Section Feed the battery cables through the grommets Connect cables from battery system. Connect cables from battery system.
Electrical Installation: Top Cable Entry PE and AC cable connections (top cable entry) Bonding Jumper (TNsystems) to Input Neutral Bar Battery 2 PE Battery 1 Protective Earthing conductors (red) for Battery 2 & AC OUT Earthing conductor connected to suitable earth electrode TNsystems Protective Earthing conductors (red) for Battery 1 & AC IN N Output circuit grounding bar. N 44.45 mm 44.45 mm 58 mm Feed the AC and PE cables through the top of Input/Output Section. Connect cables.
Bottom Cable Entry Preparing for bottom cable entry Cable entry in bottom cover of Input/Output Section Top view DC cable entry AC IN cable entry M6 Bolt 44.45 mm DC cable entry 44.
Electrical Installation: Bottom Cable Entry Preparation for bottom cable entry a. Loosen bolts of both cable entry covers and remove. b. Drill holes for grommets for AC, DC, and Output circuit grounding electrode cable in areas shown. No drilling or cutting should take place inside the UPS. Note c. Install grommets. d. Remount covers. Interchange of AC IN busbars for bottom entry a. Remove nuts from M14 bolts at busbars 90 and 92. b. Remove bolt, washer and fuse. c.
Electrical Installation: Bottom Cable Entry Battery cable connection (bottom cable entry) WARNING! Make sure that the battery breakers are open (OFF) prior to running the cables. CAUTION! Refer to the battery manufacturer’s installation manual. CAUTION! The minimum DC voltage rating of the battery supply over-current protective device is 500 V. Over-current protection for the battery circuit is required by national wiring rules.
Electrical Installation: Bottom Cable Entry Bottom view of Input/Output Section M6 Bolt 44.45 mm 44.45 mm 58 mm DC cable entry AC IN cable entry DC cable entry AC OUT cable entry BAT1- L1 In L1 Out L2 In L2 Out L3 In BAT2+ BAT1- BAT 2+ L3 Out BAT1+ BAT2— BAT1+ N N BAT2- Battery 1 (DC1 +/-) Battery 2 (DC2 +/-) IN/OUT power cable (bottom entry) Connect cables from battery system. Connect cables from battery system.
Electrical Installation: Bottom Cable Entry PE and AC cable connections (bottom cable entry) Output circuit grounding bar Bonding Jumber (TNsystems) to Input Neutral Bar Earthing conductor connected to suitable earth electrode TNsystems Protective Earthing Conductors for Battery 2 & AC OUT Protective Earthing Conductors for Battery 1 & AC IN Output circuit grounding bar N N PE Battery 1 Battery 2 44.45 mm 44.
External Bypass Static Switch Wiring WARNING! Before installation work is carried out, check and test that all AC and DC power source breakers are in open position. WARNING! Use only manual reset protection as input over-current protection. WARNING! Over-current protection required by national wiring rules. WARNING! The UPS has no internal manual disconnect devices to switch off external AC (Q1 and Q5) and DC (Q7 and Q8) input power.
Electrical Installation: External Bypass Static Switch Wiring Top cable entry Top view of AC IN & OUT cable Top view of top cable entry L3 OUT L3 IN L2 OUT L2 IN L1 OUT L1 IN connections PE X017 X012 X008A X014B X013 X014A X008B X011 X405 X010 Normal Normal X007 X021 UPS Summary Port for communication cables X022 ~ ~ L1 IN L2 IN L1 OUT L2 OUT L3 IN L3 OUT Ext. Bypass SSW 44.45 mm 44.45 mm 58 mm Loosen the 8 screws to remove top covers.
Electrical Installation: External Bypass Static Switch Wiring Bottom cable entry Ext. Bypass SSW Top view of AC IN & OUT Top view of bottom cable entry bottom cable connections X017 X012 X008A X014B X013 X014A X008B X011 X405 X010 X007 X021 Normal Normal UPS Summary L1 IN L2 IN L1 OUT Communication cable Port L3 IN L2 OUT L3 OUT L3 OUT L3 IN L2 OUT L2 IN ~ L1 OUT ~ L1 IN X022 PE 44.45 mm 44.45 mm 58 mm Loosen the 8 screws to remove bottom covers.
Communication cable overview Terminator 0M-1878 External Bypass Static Switch Maintenance Bypass Panel Relay output X134A 1 MBP Breakers X173 1 4 3 2 1 Q 1 X127A 3 1 + Note 3 Q 2 X126A + C1 6 5 2 1 X129 C2 0P4533 7 Q 3 X127B - MBP CAN I/O board 2 Q 4 X126B Note 1 X129 8 EMO (Display) Q 5 1 X128 X174 Earth fault sensor X128 12 11 10 9 Q 6 X131 12 3 4 X170 X175 Norm.
Relay Board (Optional) NC 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 1 2 3 Location of optional Relay Board 22 Symmetra MW 800 kW 3 × 400/230 V Installation Guide - 990-1510B
Electrical Installation: Relay Board (Optional) Communication cables with optional Relay Board External Lamp supply VAC or V DC Max.
Electrical Installation: Relay Board (Optional) Relay Board functions The Relay Board informs the user of the operation mode, status, and alarm conditionsand has 8 ports on the input side and 16 output terminals. Use Normally Closed (NC) contacts for Fail safe Mode and Normally Open (NO) for Active on.
Electrical Installation: Relay Board (Optional) Relay ID Name Events that will trigger the alarm Mode Comment K11 Bypass operation • UPS is running in normal operation/ bypass operation according to AS400/ Novell. Active on Opr. mode K12 Maintenance bypass ON • The maintenance bypass switch is active. Active on Opr. mode K13 Stand-by operation • UPS is in stand-by operation. Active on Opr. mode K14 Boost charge operation • UPS is boost charging the batteries. Active on Opr.
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, generator, or UPS) is solidly grounded. In the event of a down-stream ground fault, the fault current will have a path back to the source, and the over-current device feeding the faulted part of the installation will trip and isolate the fault.
Electrical Specifications WARNING! Supply the UPS from a dedicated, 3 × 400/230 V, L1, L2, L3, N, PE source or a high-impedance grounded system. CAUTION! Ensure clockwise phase rotation (L1, L2, L3) of input voltages. CAUTION! AC and DC disconnect switches and over-current protection must be included in the installation. All wiring must comply with all applicable national and/or local electrical codes. Note Max. prospective RMS short-circuit current on input terminals: 200 kA Max.
Specifications: Electrical Specifications DC Input DC Input Nominal Voltage (note 3) 2 x 384 V INom Discharge (note 4) 1085 A IMax Discharge (note 5) 1276 A CAUTION! The minimum DC voltage rating of the battery supply over-current protective device is 500 V.
Specifications: Electrical Specifications Notes 1. Nominal (Nom): Input current based on rated load, nominal input voltage and fully charged batteries. 2. Current limitation is maximum allowed via electronic current limiting and is based on full battery recharge + nominal load and -10% input voltage. 3. Nominal battery voltage assumed to be 2.0 volts/cell (lead technology). 4. Nominal Battery Discharge current based on rated load, and nominal Battery voltage. 5.
Required Breaker Settings (400 V Systems) Contact APC Application Team for Required Breaker Settings in 380 V and 415 V systems. Note The Symmetra® MW is a fault-tolerant system capable of handling and surviving overloads and internal/external faults. The overload performances and fault clearings are possible when the system meets specified minimum requirements for breaker settings. The settings are specified in the tables below, but some of them can also be found in the Electrical Specification section.
Specifications: Required Breaker Settings (400 V Systems) 22 kA is the maximum peak let-through current (including safety factor) available during clearing of an internal fault in a 200 kW section or a Power Module. During or after a controlled fault clearing, none of the breakers are allowed to trip on the instantaneous trip setting below the specified value. The maximum peak let through current is applicable to utility with prospective short-circuit currents up to 200 kA.
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 electrical wiring rules.
TN Systems Characteristics TN systems have one point connected directly to ground. All exposed conductive parts must be connected to that point by protective conductors.
Appendix: TN Systems Additional requirements for generating sets (IEC 60364-5-55 551.4.2) To be used when the generating set provides a switched alternative to the public supply. Protection by automatic disconnection of supply must not rely on the connection to the earthed points of the public supply system when the generator is operating as a switched alternative to a TN system. A suitable earth electrode must be provided.
Appendix: TN Systems The characteristics of protective devices and the circuit impedances shall be such that, if a fault of negligible impedance occurs anywhere in the installation between a phase conductor and a protective conductor or exposed conductive part, automatic disconnection of the supply will occur within 5 seconds (valid for distribution circuits), the following condition fulfilling this requirement: Zs × Ia ≤ U0 In the condition: Zs is the impedance of the fault loop comprising the source, t
TT Systems Characteristics TT systems have one point connected directly to ground and all exposed conductive parts of the installation must be connected to an earth electrode. This earth electrode is independent of the power system earthed point. Reference to IEC 60364-4-41 413.1.4 All exposed conductive parts that are protected collectively by the same protective device must be connected to a common earth electrode together with the protective conductors.
Appendix: TT Systems When the protective device is an overcurrent protective device, it must be either: • a device with inverse time characteristics and Ia must be the current causing automatic operation within 5 seconds, or • a device with an instantaneous tripping characteristic and Ia must be the minimum current causing instantaneous tripping The following diagram shows a Symmetra® MW installed in a TT system: • Earthing arrangements and protective conductors - Symmetra® MW in “TT installation” 38 Sym
IT Systems Characteristics In IT systems the installation is insulated from earth or connected to earth through a sufficiently high impedance. Exposed conductive parts are earthed individually, in groups, or collectively. Reference to IEC 60364-4-41 413.1.5 In IT systems the installation must be insulated from earth or connected to earth through a sufficiently high impedance. This connection must be made either at the neutral point of the system or at an artificial neutral point.
Appendix: IT Systems In installations where the neutral is distributed, the following conditions must be fulfilled: U0 Z′ s ≤ ------------2 × Ia In the condition: U0 is the nominal AC RMS voltage between phase and neutral Zs is the impedance of the fault loop comprising the phase conductor and the protective conductor of the circuit Z′ s is the impedance of the fault loop comprising the neutral conductor and the protective conductor of the circuit Ia is the operating current of the protective devic
N PE Residual current protective device can not be used at this point. Owing to parallel return path for the fault current Minimum cross-sectional areas: IEC 364-5-54 § 543.1.1 With reference to: IEC 60364-4-41 § 413.1.3.1 Residual Current Sense Suitable earth electrode with reference to IEC 60364-5-55 § 551.4.
N PE Residual current protective device can not be used at this point. Owing to parallel return path for the fault current Minimum cross-sectional areas: IEC 364-5-54 § 543.1.1 With reference to: IEC 60364-4-41 § 413.1.3.1 With reference to: Stærkstrømsbekendtgørelsen § 551.6.3 Note ( § 551.6.
PEN Service Entrance With reference to: IEC 60364-4-41 § 413.1.3.1 PEN Residual current protective device can not be used. Residual Current Sense PE Suitable earth electrode with reference to IEC 60364-5-55 § 551.4.
PEN With reference to: IEC 60364-4-41 § 413.1.3.1 PEN PEN Suitable earth electrode with reference to IEC 60364-5-55 § 551.4.2 Q1 Q5 PE Battery rack PE Battery breaker box Q7 PE E N L3 L2 L1 Mains - input PE L3 L2 Battery 1 + - Q3 - Q8 i M Main inverter u PE N L3 L2 L1 UPS - output PE L3 L2 L1 Bypass - output The "Common-Mode Filter" has no effect in this system configuration.
N With reference to IEC 60364-4-41 § 413.1.4.1 PE With reference to IEC 60364-4-41 § 413.1.4.2 Suitable earth electrode: R A x Ia < 50V Q1 Q5 Switchgear Bypass - input PE Battery rack PE Battery breaker box Q7 PE E N L3 L2 L1 Mains - input PE L3 L2 L1 Battery 1 + Common-mode filter Battery 1 Residual current protective device can not be used at this point.
N Grounding Z impedance Requirement !! IEC 60664-4-41 § 413.1.5.4 Insulation Monitoring Device Grounding impedance Z Suitable earth electrode: RA x Id < 50V With reference to IEC 60364-4-41 § 413.1.5.3 Alternative: The exposed-conductive-parts can be earthed individually or in groups. But special demands are required. See IEC 60364-4-41 § 413.1.5.
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