Installation. Symmetra MW II kw 480 V

Transcription

1 ~ ~ Installation Symmetra MW II 000 kw 480 V

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3 Contents Safety... IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS Symbols used in this guide Installation safety System Overview...3 UPS Sections Serial number Inverter Section Control Section Input/Output Section Configurations Configuration (Inverter Section placed to the left) Configuration (Inverter Section placed to the right) External Bypass Static Switch Serial number Electrical Installation...7 Typical UPS Wiring Principle Power wiring overview External disconnection switches Input/Output wiring precautions Top Cable Entry Preparing for top cable entry (default) Battery cable connections (top cable entry) Ground and AC cable connections (top cable entry) i

4 Bottom Cable Entry Preparing for bottom cable entry Battery cable connections (bottom cable entry) Ground and AC cable connections (bottom cable entry) Bypass Static Switch Wiring Top cable entry Bottom cable entry Communication Cable Overview Relay Boards Location of relay boards Relay board communication cables Relay board connections Relay board connections Specifications... 5 LowImpedance/HighImpedance Grounding Lowimpedance grounding Highimpedance grounding Electrical Specification Installation Planning Data AC Input DC Input AC Output AC Input External Bypass SSW Heat Dissipation Notes Table Table 306 (National Electrical Code) Recommended cable, bolt, and lug sizes Torque specifications Required Breaker Settings Input and upstream breakers Output and downstream breakers General Specifications 480 V ii

5 Safety IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS This guide contains important instructions for SYMF000KG 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. Note: Indicates important information. Indicates that more information is available on the subject. Main Protective Earthing Terminal symbol. Ground symbol. Installation safety EPO Press the EPO (Emergency Power Off) button to switch off all AC and DC power supply to connected equipment in the room. 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. Warning: Before you start the installation, verify that all AC and DC power source breakers are in the open position. Warning: Only personnel trained in the construction and operation of the equipment, and the electrical and mechanical hazards involved, must install or remove system components.

6 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 autostart function enabling the system to start without any warning when power is applied. Caution: All wiring must be in accordance with applicable national and/or local electrical codes. This unit contains components that are sensitive to electrostatic discharge (ESD). Follow proper ESD procedures to avoid severe damage to electronic components. Note: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 5 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the Installation Manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense.

7 System Overview UPS Sections The UPS system consists of an 000 kw Inverter Section, a Control Section, an Input/Output Section and an External Bypass Static Switch Section. 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 Main Static Switch (incorporated in the Control Section). Input/Output Section The Input/Output Section provides electrical connection of input and output. 3

8 ~ ~ 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. Configuration (Inverter Section placed to the left) 03 mm (80 in) 067 mm (4 in) Inverter Section Width: mm (83.5 in) Control Section Width: 0 mm (39.84 in) Total width of UPS sections: 438 mm (63 in) Weight: Without Power Modules: 497 kg (933 lb) With Power Modules: 5049 kg (08 lb) Input/Output Section Width: 04 mm (39.9 in) 4

9 Configuration (Inverter Section placed to the right) 03 mm (80 in) 067 mm (4 in) Input/Output Section Width: 04 mm (39.9 in) Control Section Width: 0 mm (39.84 in) Inverter Section Width: mm (83.5 in) Total width of UPS sections: 438 mm (63 in) Weight: Without Power Modules: 497 kg (933 lb) With Power Modules: 5049 kg (08 lb) 5

10 ~ ~ Normal 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 power to the load. 03 mm (80 in) 067 mm (4 in) Serial number External Bypass Static Switch Width: 04 mm (39.8 in) Weight: 460 kg (0 lb) The serial number is stated on the type label behind the finishing panel above the display unit. Remove finishing panel to see serial number. 6

11 Electrical Installation Typical UPS Wiring Principle Power wiring overview See separate manual on parallel operation for wiring overview in parallel systems. AC Mains Input Lugs 480 V, 3PH, 3W & GND Q Q5 Battery Battery Breakers Q7 Battery Q8 5 UPS 7 SSW 7 External Battery Q Q6 KK 4 Q4 Q3 KK 4 4 LBB KK V, 3PH, 3W & GND Output Load Lugs SOURCE AND AC CABLING MUST BE 480 VOLT, WYE CONNECTED, 3 PHASE, 3 WIRE + GROUND (CONTACT APC IF OTHER). DASHED LINES BETWEEN UNITS ( ) REPRESENT AC/DC CABLING PROVIDED BY OTHERS. ALL AC CIRCUIT BREAKERS ARE 00% CONTINUOUS DUTY RATED WITH 4 VOLT DC SHUNT TRIPS AND A/B AUXILIARY CONTACTS. OPTIONAL COMPONENTS SEPARATE CONDUITS. TWO WIRE + GROUND UPS INPUT AND OUTPUT CONDUCTORS MUST BE IN SEPARATE AMPERE RATINGS. UPS AND STATIC BYPASS WITHSTAND 00,000 SYMMETRICAL AMPERES. INSTALLATION MUST COMPLY WITH ALL APPLICABLE NATIONAL AND LOCAL CODES. 7

12 External disconnection switches Warning: The UPS has no builtin disconnect devices to switch off external AC (Q and Q5) and DC (Q7 and Q8) input power. Ensure that the disconnect devices are available as separate components for this installation. Note: The installer must provide each external disconnect device for this UPS system with labels displaying the following text: Isolate the Uninterruptible Power Supply (UPS) as instructed in the User Guide before working on the circuit. Input/Output wiring precautions Warning: Only personnel trained in the construction and operation of the equipment, and the electrical and mechanical hazards involved, must install or remove system components. Warning: Supply the UPS from a dedicated, grounded, 3wire Wye service. Caution: All wiring must be in accordance with applicable national and/or local electrical codes. Note: Use only ULapproved cables and cable lugs. Use only stranded copper conductors. Refer to National Electrical Code for wiring and protection. See Recommended cable, bolt and lug sizes. 8

13 Top Cable Entry Preparing for top cable entry (default) Cable entry in top cover of Input/Output Section. Top view M6 Bolt Battery cable entry Battery cable entry.75 in / mm.3 in / 58 mm.75 in / mm AC IN cable entry AC OUT cable entry IN/OUT power cable (top entry) BAT BAT Top view AC IN AC OUT 90 L3 IN 95 9 L IN 94 9 L IN 93 L3 OUT L OUT L OUT L IN L IN L OUT L OUT L3 IN L3 OUT. Loosen the 8 bolts in cable entry covers. Drill holes for conduits in areas shown. Refit the covers and install the conduits.. Install cable lugs on busbars. Use M bolts. 9

14 Battery cable connections (top cable entry) Warning: Make sure that the battery breakers are open (OFF) prior to running the cables. Caution: For battery installation and maintenance instructions, refer to the battery manufacturer s installation manual. Caution: Overcurrent protection for the battery circuit is required by code. The minimum DC voltage rating of the battery supply overcurrent protection device is 500 V. Note: Overcurrent protection for the battery circuit is required by code. Note: BAT and BAT cables MUST be run in separate conduits. 0

15 Top view of Input/Output Section Battery cable entry Battery cable entry.75 in / mm.3 in / 58 mm.75 in / mm AC IN cable entry AC OUT cable entry IN/OUT power cable (top entry) Battery Battery (BAT +/) (BAT +/) BAT BAT + BAT BAT + L In L Out L In L Out L3 In BAT + BAT L3 Out BAT + BAT Front view of Input/Output Section. Feed the battery cables through the top of Input/Output Section.. Connect cables from battery system as illustrated. 3. Connect cables from battery system as illustrated.

16 Ground and AC cable connections (top cable entry) Equipment grounding cables for Battery and AC Out Output circuit grounding bar Grounding electrode conductors (red) for Battery & AC IN Midpoint bonding jumper.75 in / mm.75 in / mm.3 in / 58 mm. Feed the AC and ground cables through the top of Input/Output Section as illustrated.. Connect the cables as illustrated.

17 Bottom Cable Entry Preparing for bottom cable entry Cable entry in bottom cover of Input/Output Section. Top view M6 Bolt Battery cable entry Battery cable entry.75 in / mm.3 in / 58 mm.75 in / mm AC IN cable entry AC OUT cable entry Top view Front view BAT BAT M4 M4 M4 M0 M0 M0 AC IN 90 L3 IN L IN 9 L IN M0 AC OUT 95 L3 OUT L OUT 93 L OUT M4 M0 M0 M0 L IN L OUT L IN 9 94 L OUT L3 IN 9 93 L3 OUT BAT BAT Top view AC IN AC OUT 90 9 L3 IN L IN L IN 95 L3 OUT L OUT 93 L OUT IN/OUT power cable (bottom entry).. Preparation for bottom cable entry 3

18 a. Loosen bolts of both cable entry covers and remove. b. Drill holes for conduits for AC, Battery, and Output circuit grounding electrode cable in areas shown. c. Install conduits. d. Remount covers.. Interchange of AC IN busbars for bottom entry a. Remove nuts from M4 bolts at busbars 90 and 9. b. Remove bolt, washer and fuse. c. Remove bolts from M0 at busbars 90 and 9. d. Remove busbars 90 and 9 at AC IN. e. Move the two front insulators in the topmost busbar position two stud positions to the front. f. Move the two front insulators in the lowest busbar position two stud positions to the rear. g. Install busbar 90 in original position of busbar 9. h. Install busbar 9 in original position of busbar 90. i. Reattach bolts at busbars 90 and 9. j. Install cable lugs on busbars using M bolts. 3. Interchange of AC OUT busbars for bottom entry a. Remove nuts from M4 bolts at busbars 93 and 95. b. Remove bolt, washer and fuse. c. Remove bolts from M0 at busbars 93 and 95. d. Remove busbars 93 and 95 at AC OUT. e. Move the two front insulators in the topmost busbar position two stud positions to the front. f. Move the two front insulators in the lowest busbar position two stud positions to the rear. g. Install busbar 93 in original position of busbar 95. h. Install busbar 95 in original position of busbar 93. i. Reattach bolts at busbars 93 and 95. j. Install cable lugs on busbars using M bolts. 4. Moving busbar for grounding a. Move busbar for grounding from upper right corner to lower left corner as illustrated. Battery cable connections (bottom cable entry) Warning: Make sure that the battery breakers are open (OFF) prior to running the cables. Caution: For battery installation and maintenance instructions, refer to the battery manufacturer s installation manual. Caution: Overcurrent protection for the battery circuit is required by code. The minimum DC voltage rating of the battery supply overcurrent protection device is 500 V. 4

19 Note: Overcurrent protection for the battery circuit is required by code. Note: BAT and BAT cables MUST be run in separate conduits. Top view of Input/Output Section Battery cable entry Battery cable entry.75 in / mm.3 in / 58 mm.75 in / mm AC IN cable entry AC OUT cable entry Front view of Input/Output Section BAT BAT + BAT BAT + L In L Out L In L Out L3 In L3 Out BAT + BAT BAT + BAT Battery BAT +/) Battery (BAT +/) IN/OUT power cable (bottom entry). Feed the battery cables through the bottom of Input/Output Section.. Connect cables from battery system as illustrated. 3. Connect cables from battery system as illustrated. 5

20 Ground and AC cable connections (bottom cable entry) Midpoint bonding jumper Output circuit grounding bar Equipment grounding cables for Battery & AC IN Equipment grounding cables for Battery & AC OUT Equipment grounding bar Battery Battery.75 in / mm.3 in / 58 mm.75 in / mm. Feed the AC and ground cables through the bottom of Input/Output Section as illustrated.. Connect cables as illustrated. Bypass Static Switch Wiring Warning: Use only manual reset protection as input overcurrent protection. 6

21 Warning: Overcurrent protection required by code. Warning: The UPS has no builtin disconnect devices to switch off external AC (Q and Q5) and DC (Q7 and Q8) input power. Ensure that the disconnect devices are available as separate components for this installation. Caution: The External Bypass Static Switch is not provided with builtin backfeed protection. The breaker is controlled from the External Bypass SSW and will be tripped in case of backfeed. Note: The installer must provide each external disconnect device for this UPS system with labels displaying the following text: Isolate the Uninterruptible Power Supply (UPS) as instructed in the User Guide before working on the circuit. Note: The installation of the External Bypass Static Switch must comply with local and national codes. Note: Run matched set of phase cables in the same cable run(s). Do not separate phases into different cable runs. For information on cable lugs, cable ratings, overcurrent protection and the disconnection switches, refer to Specifications. 7

22 X008A X008B X00 X007 X0 X0 X0 X0 X03 X04A X405 X07 X04B UPS Summary ~ ~ Normal Normal Top cable entry Top view of top cable entry Top view of AC IN & OUT cable connections L IN L OUT L IN L OUT L3 IN L3 OUT PE Port for communication cables L IN L OUT L IN L OUT L3 IN L3 OUT.75 in / mm.75 in / mm.3 in / 58 mm. Loosen the 8 bolts to remove top cover. Note: No drilling or cutting should take place over the top of the UPS.. Drill holes for conduits. Refit the covers. Install the conduits. 3. Feed cables through conduits. Connect cables at cable connection points as illustrated. 4. Connect grounding electrode conductor to busbar locations as shown. 8

23 X008A X008B X00 X007 X0 X0 X0 X0 X03 X04A X405 X07 X04B UPS Summary ~ ~ Normal Normal Bottom cable entry Top view of bottom cable entry Top view of AC IN & OUT bottom cable connections L IN L OUT L IN L OUT L3 IN L3 OUT Communication cable Port L IN L OUT L IN L OUT L3 IN L3 OUT PE.75 in / mm.3 in / 58 mm.75 in / mm. Loosen the 8 bolts to remove bottom cover. Note: No drilling or cutting should take place inside the UPS.. Drill holes for conduits. Refit the covers. Install the conduits. 3. Feed cables through conduits. Connect cables at cable connection points as illustrated. 4. Connect grounding electrode conductor to busbar locations as shown. 9

24 Communication Cable Overview External Bypass Static Switch Terminator 0N0765 Maintenance Bypass Panel Relay output Connection plane 0P0957 X34A X77 X3 Q 6 Q 5 X34A X77 X8 X9 0 9 X34B X75 Norm.op 3 4 X70 MBP CAN I/O board 0P4533 X74 Earth fault sensor X C + Note C X6B X7B X6A X7A X30 X8 X9 EMO (Display) Q 4 Q 3 Q Q MBP Breakers X73 Lamps X7 X Note Terminator 0N0765 H3 H4 H5 H6 Q5 4VDC Q6 Shunt trip for back feed protection + External Lamp supply V DCor VDC Max. 50V AC 5A Connection plane 0P0957 X6B X7B X6A X7A UPS Backfeed protection X34A EPO out X77 X3 X30 X8 X9 EMO (Display) External EPO placed on wall Note X34B X34A X73 X77 MBP Breakers X X7 Lamps X9 Norm.op X75 MBP CAN I/O board 0P4533 Relay output Earth fault sensor X X70 X78 X Maintenance Bypass Panel Note C + C Q Q 4VDC Shunt trip EPO out X85 X33A Q7 Q8 3 4 X8 3 4 X80 Battery CAN I/O board X85 ID 0 0P45 X33A X86 X33B H7 3 X83 H X84 X8 Fuse Fuse Fuse3 Fuse Note UVR Q8 + UVR Q7 + Temp sensor NTC + Temp sensor NTC + Note : Contact APC Application Team for correct sizing. Note : H7, H8 = 5V LED Note 3: Q, Q4 and Q6 are optional. If Q is not present pins 3 and 4 must be shorted on both boards. If Q4 is not present pins 7 and 8 must be shorted on both boards. If Q6 is not present pins and must be shorted on both boards. 0

25 Relay Boards Location of relay boards The relay boards are connected to the bottom cover plate of the Control Section. Relay board Relay board Relay board communication cables Control Section Backplane X008A Fan CAN X008A

26 Relay board connections Relay Function Mode Special Comments Output Common alarm Fail safe Output Normal operation Active on Output 3 Bypass operation Active on Output 4 Battery operation Active on Output 5 V DC out of tolerance Fail safe Output 6 Battery conditon fault Fail safe Battery fault detected by battery monitor Output 7 Maintenance bypass operation Active on Output 8 Mains out of tolerance Fail safe Output 9 Bypass out of tolerance Fail safe Output 0 Output out of tolerance Fail safe Output MCCB open Fail safe Battery breakers open Output System overload Fail safe Output 3 Good utility Active on If UPS goes into bypass, this relay goes on without delay Output 4 Boost charge active Fail safe Output 5 Fan fault Fail safe Output 6 Temperature fault Fail safe Temperature switch active or faulty temperature sensor Input Generator active Master will handle signal Input for indicating that a generator is active. This will be used to reduce the charge power Input Battery room ventilation fault Individual Input for indicating that the ventilation in battery rooms is defect. This will be used to reduce the charge power Input 3 DC Ground Fault Detection Individual Input 4 Reserved for future use Master will handle signal Input 5 Plant clock synchronization Master will handle signal Input for real time clock synchronization Input 6 Power Tie detection Master will handle signal Input from PLC to detect if Power Tie is active

27 Relay Function Mode Special Comments Input 7 Input 8 Reserved for future use Reserved for future use Relay board connections Relay Function Mode Special Comments Output Info level alarm Fail safe Output Warning level alarm Fail safe Output 3 Severe level alarm Fail safe Output 4 Input frequency too high Fail safe Output 5 Input frequency too low Fail safe Output 6 Output 7 Output frequency too high Output frequency too low Fail safe Fail safe Output 8 Bypass source fault Fail safe Output 9 Close Q7 pulse Active on No delay Output 0 Close Q8 pulse Active on No delay Output Power Tie mode active Active on No delay Output Close Q Fail safe No delay Output 3 Output 4 Output 5 Output 6 Input Input Input 3 Input 4 Input 5 Input 6 Input 7 Input 8 Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use Reserved for future use 3

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29 Specifications LowImpedance/HighImpedance Grounding The Symmetra MW is easily integrated into either a lowimpedance (solidly) grounded Wye system, or a highimpedance grounded system. In a lowimpedance grounded system (most common), the power source (utility, generator, or UPS) is solidly grounded. In the event of a downstream ground fault, the fault current will have a path back to the source, and the overcurrent device feeding the faulted part of the installation will trip and isolate the fault. In a highimpedance grounded system, the source is grounded with an impedance (grounding resistor). In the event of a downstream fault, the fault current will be limited by the impedance of the grounding resistor. The value of a highimpedance system is its ability to maintain operation with a given system fault to ground, i.e. the overcurrent device will only trip at linetoline faults or double ground faults. For a highimpedance system to provide enhanced power system reliability and availability, a groundfault monitoring/alarm system is required. Lowimpedance grounding For lowimpedance grounding, verify the presence of the copper midpoint bonding jumper. For location of the jumper, see Ground and AC cable connection in Installation Manual. Connect the output circuit grounding electrode conductor to a grounding electrode in accordance with NEC 999, article 506. Note: Grounding electrode conductor to be supplied by the customer Highimpedance grounding For highimpedance grounding, remove the preinstalled copper midpoint bonding jumper. For location of the jumper, see Ground and AC cable connection in Installation Manual. Install groundfault detection circuit in accordance with NEC 999, article Note: For highimpedance grounding, the installation must include groundfault detection circuitry. From an external grounding resistor, and through a separate conduit, connect a cable to the output circuit grounding bar. 5

30 Electrical Specification Installation Planning Data Maintenance Bypass Panel Q3 Q5 External Bypass SSW Q6 Optional Service (480V 3phase, 3 wire grounded Wye) Q UPS Q Optional Q4 Optional Output (480V 3phase, 3wire only) Battery Q7 Breaker Q8 Battery Breaker Note: The installation is a typical installation including ancillary equipment, which is available from APC. Note: UPS and External Bypass Static feed must be generated from synchronized sources. Warning: Supply the UPS from a dedicated, grounded 3wire Wye service. Warning: The UPS has no builtin disconnect devices to switch off external AC (Q and Q5) and DC (Q7 and Q8) input power. Ensure that the disconnect devices are available as separate components for this installation. Caution: Ensure clockwise phase rotation (L, L, L3) of input voltages. Caution: AC and DC disconnect switches and overcurent protection must be included in the installation. Note: All wiring must comply with all applicable national and/or local electrical codes. 6

31 Note: Max. prospective RMS shortcircuit current on input terminals: 00 ka. Note: Max. prospective RMS shortcircuit current on battery terminals: 50 ka. AC Input AC Input Input Rating 000 kw/kva Power Factor Input Voltage 480 V Input Frequency 60 Hz Nominal Input Current (note ) 40 A Maximum Input Current (note ) 364 A Input Current Limitation (note 3) 564 A Recommended Cable per phase (notes 4, 6, 7, a, b, c) kcmil DC Input DC Input Nominal Voltage (note 5) I Nom Discharge (note 8) I Max Discharge (note 9) Recommended cable (per pole) x 384 V 356 A 595 A kcmil Caution: Overcurrent protection for the battery circuit is required by code. The minimum DC voltage rating of the battery supply overcurrent protection device is 500 V. AC Output AC Output Voltage Current Nom Max (note ) Recommended cable (per phase) 480 V 03 A 504 A kcmil 7

32 AC Input External Bypass SSW The External Bypass SSW is designed to accommodate a continuous overload of 5%. AC Input External Bypass SSW External Bypass SSW Max Input Current (00% load) 03 A Heat Dissipation Notes 05.5 kbtu/hr (note 0). Nominal (Nom): Input current based on rated load.. Maximum (Max): Input current based on full battery recharge + nominal input voltage + rated load. 3. Current limitation (A) through electronic current limiting is based on full battery recharge + nominal load and 5% input voltage (see Required Breaker Settings ). 4. Input, Output and Battery and Battery circuit cables shall be run in separate conduits or raceways. Cables shall be rated at 600 V as a minimum. 5. Nominal battery voltage at.0 volts/cell. 6. Recommendation: All cables shall be sized in accordance with 00 NEC 09 FPN No. 4 branch feeder voltage drop of 3%. Voltage drop not considered in above chart. Applicationspecific Input Cable Ampacity may vary from above chart. 7. Equipment Grounding Conductors shall be sized in accordance with Table 50 of the 00 NEC and shall be installed in accordance with Article 50 Section VI and Section VII of the 00 NEC. Grounding Electrode Conductors shall be sized in accordance with Article and Table of the 00 NEC and should be installed in accordance with Article 50 Section III of the 00 NEC. 8. Nominal Battery Discharge current based on rated load, and nominal battery voltage. 9. Maximum Battery Discharge current based on rated load at end of discharge. 0.Heat dissipation calculated at rated load capacity..this current is at 5% of rated load and is electronically currentlimited to a maximum of 0 minutes. This value is only provided so the engineer can ensure that the selected AC output circuit overcurrent device s timecurrent characteristic will support this condition. a. Temperature rating of conductors: 94 o F (90 o C). Reference: Table 306 of NEC, 75 o C column. Use only copper conductors. 67 o F (75 o C) cable terminal connectors assumed. b. Reference: NEC Handbook 00. Consult local codes for possible variations. c. All cable ratings are supplied as guidelines only. These guidelines are recommendations only, and should not be considered substitutes for review and compliance with NEC, national, or local codes. Consult with your licensed engineer for sitespecific applications. 86 o F (30 o C) assumed. Overcurrent protection provided by others. 8

33 Table Table 306 (National Electrical Code) National Electrical Code and NEC are registered trademarks of the National Fire Protection Association, Quincy, MA. Allowable Ampacities of Insulated Conductors rated 0 Through 000 Volts, 60 o C Through to 90 o C (40 o F Through 94 o F), Not More Than Three CurrentCarrying Conductors in Raceway, Cable, or Earth (Directly Buried), Based on Ambient Temperature of 30 o C (86 o F). Size Temperature Rating of Cables (See Table 303) Size 60 o C (40 o F) 75 o C (67 o F) 90 o C (94 o F) 60 o C (40 o F) 75 o C (67 o F) 90 o C (94 o F) AWG or kcmil Types TW,UF Types FEPW,RH,RH W,THHW, THW,THWN, XHHW, USE,ZW Types TBS,SA,SIS,FEP, FEPB,MI,RHH, RHW,THHN, THHW,THW, THWN,USE, XHH,XHHW,XH HW,ZW Types TW,UF Types RH,RHW,TH HW,THW, THWN, XHHW,USE Types TBS,SA,SIS,TH HN,THHW,TH W,THWN, RHH,RHW, USE,XHH, XHHW, XHHW,ZW AWG or kcmil Copper Aluminium or CopperClad Aluminium 8 6 4* * 0* * 0* /0 /0 3/0 4/ /0 /0 3/0 4/ CORRECTION FACTORS Ambient Temp. ( o C) For ambient temperatures other than 30 o C (86 o F), multiply the allowable Ampacities shown above by the appropriate factor shown below Ambient Temp. ( o F) Reprinted with permission from NFPA 70005, National Electrical Code, Copyright 004, National Fire Protection Association, Quincy, MA 069. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety. 9

34 Size Temperature Rating of Cables (See Table 303) Size 60 o C (40 o F) 75 o C (67 o F) 90 o C (94 o F) 60 o C (40 o F) 75 o C (67 o F) 90 o C (94 o F) AWG or kcmil Types TW,UF Types FEPW,RH,RH W,THHW, THW,THWN, XHHW, USE,ZW Types TBS,SA,SIS,FEP, FEPB,MI,RHH, RHW,THHN, THHW,THW, THWN,USE, XHH,XHHW,XH HW,ZW Types TW,UF Types RH,RHW,TH HW,THW, THWN, XHHW,USE Types TBS,SA,SIS,TH HN,THHW,TH W,THWN, RHH,RHW, USE,XHH, XHHW, XHHW,ZW AWG or kcmil Copper Aluminium or CopperClad Aluminium Reprinted with permission from NFPA 70005, National Electrical Code, Copyright 004, National Fire Protection Association, Quincy, MA 069. This reprinted material is not the complete and official position of the NFPA on the referenced subject, which is represented only by the standard in its entirety. Recommended cable, bolt, and lug sizes Cable Size Bolt hole size Hole spacing Lug width Lug P/N ()() Crimping Tool and Dies 400 kcmil 0.5 in/.7 mm.75 in/44.45 mm.39 in/35.3 mm Panduit LCD4006 (or equivalent) 500 kcmil 0.5 in/.7 mm.75 in/44.45 mm.54 in/39. mm Panduit LCD5006 (or equivalent) 600 kcmil 0.5 in/.7 mm.75 in/44.45 mm.70 in/43.8 mm Panduit LCD6006 (or equivalent) Manufacturer recommended crimping tool and dies. Manufacturer recommended crimping tool and dies. Manufacturer recommended crimping tool and dies. Note: Cable lugs are not supplied. 30

35 Torque specifications Torque specifications Bolt Size M8 Bolt Size M0 Bolt Size M Bolt Size M4 0 lbfft/3.5 Nm lbfft/30 Nm 37 lbfft/50 Nm 55 lbfft/75 Nm Required Breaker Settings The Symmetra MW is a faulttolerant 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. A proper breaker coordination study is required to ensure the highest availability of the UPS. This breaker coordination study should be performed focusing on maintaining the fault tolerant characteristics of the Symmetra MW. The following tables provide the optimum settings for the input and output breakers. The settings are specified in the tables below, but some of them can also be found in the Electrical Specification section. See separate manual on parallel systems for information on required breaker settings in parallel systems. Input and upstream breakers Q, Q5, and any upstream breaker Duration [S] Current [A] Total load [%] Event/Operation < ka* Internal fault clearing/ Instantaneous trip setting 880** 30 Overload online Online Online + Max. Battery Charge * In the absence of a coordination study conducted by a professional engineer, the recommended instantaneous trip setting for breakers Q, Q, Q4, Q5, and Q6 is 8 ka. ** Only applicable to Q 3

36 Output and downstream breakers Q, Q4, Q6 Duration [S] Current [A] Total load [%] Event/Operation < ka* Internal fault clearing/ Instantaneous trip setting ** 00 Overload online ** 5 Overload online Online * In the absence of a coordination study conducted by a professional engineer, the recommended instantaneous trip setting for breakers Q, Q, Q4, Q5, and Q6 is 8 ka. ** Only applicable to Q and Q4 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 a breaker with a usable fixed instantaneous trip value. Ip* [ka] I peak letthrough [ka] I setting [ka] * Ip = Abridgment for Prospective shortcircuit current. This is the current that would flow in the fault circuit is the fuse was replaced by a link with an infinitely small impedance 8 ka is the maximum peak letthrough current (including safety factor) present during clearing of an internal fault in a 00 kw section or a power module. This maximum peak letthrough current is based on and applicable to utility with prospective shortcircuit currents (Ip) up to 00 ka. During or after a controlled fault clearing, none of the breakers are allowed to trip on the instantaneous trip setting below the specified value. This is also applicable to the upstream breakers, and a check of the instantaneous trip setting in this part of the installation is required. The instantaneous trip setting calculated by a professional engineer in a breaker cooardination study must not disable the functionality of clearing and surviving an internal fault unless there is a written agreement between APC by Schneider Electric and the customer. By ensuring the unit s fault clearing ability (survival skills) i.e. using the correct instantaneous trip settings in the switch gear (installation), maximum power availability in normal operation is obtained for the critical load. Note: The instantaneous trip setting can be calculated when utility Ip is known. An incorrect trip setting can result in limiting the system functionality and jeopardize the load support. 3

37 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 Application Team can provide the correct breaker settings and breaker frame sizes. Note: For upstream breakers not mentioned in the table, the APC Application Team can provide the correct breaker settings for online, overload, and trip currents. The following diagram shows a dual utility system in which the upstream breakers are named Q. Correct settings of upstream breaker settings are mandatory. The system can also be configured as a single utility system. Dual Utility Installation Q3 T Q Q5 Q6 T Q Q Q Q4 General Specifications 480 V Backfeed protection Humidity Builtin in the UPS Max. 95% noncondensing Protection class NEMA Safety Emission and immunity UL 778 listed FCC part 5, sub part J Class A (conducted/radiated) 33

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40 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. (Corporate Headquarters) Connect to localized APC Web sites for specific countries, each of which provides customer support information. Global support searching APC Knowledge Base and using esupport. Contact the APC Customer Support Center by telephone or . Local, countryspecific centers: go to for contact information. For information on how to obtain local customer support, contact the APC representative or other distributors from whom you purchased your APC product. Entire contents copyright 009 American Power Conversion Corporation. All rights reserved. Reproduction in whole or in part without permission is prohibited. APC, the APC logo, and Symmetra are trademarks of American Power Conversion Corporation. All other trademarks, product names, and corporate names are the property of their respective owners and are used for informational purposes only. 9904F00 *9904F00* 4/009