263353p_idGl static uninterruptible power supply Prepurchase.pdf

State of Maine, 19 Union Street Data Center

Integrated Design Group, Inc.

Section 26 33 53p – Static Uninterruptible Power Supply - Purchase

Project 1101101 26 33 53p - 1 Pre-purchase 02/24/12

SECTION 26 33 53p

STATIC UNINTERRUPTIBLE POWER SUPPLY – PURCHASE

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Two (2) 225kWA/202.5kW, three-phase, on-line, double-conversion, static-type, UPS modules configured as N+1, with provisions to add a 3 rd module in the future. Each UPS module shall have the following features:

a. Surge suppression.

b. Input harmonics reduction.

c. Rectifier-charger.

d. Inverter.

e. Static bypass transfer switch.

f. Battery and battery disconnect device for each module.

g. External maintenance bypass/isolation switch.

h. Output isolation transformer.

i. Remote UPS monitoring provisions.

2. Electrical General Commissioning Requirements. Provide Manufacturer’s support as required to coordinate with the Commissioning Agent. Support all commissioning efforts and paperwork, Acceptance and Integrated Systems Testing.

B. Meet the following performance requirements:

1. Wind, snow, ice, flood and earthquake Performance: UPS shall withstand the effects of earthquake motions determined according to ASCE/SEI 7. Refer to Section 26 00 09p.

2. Environmental Conditions: The UPS shall be capable of operating continuously in the following environmental conditions without mechanical or electrical damage or degradation of operating capability, except battery performance.

a. Ambient Temperature for Electronic Components: 32 to 104 deg F (0 to 40 deg C).

b. Ambient Temperature for rating of Battery: 77 deg F (25 deg C).

c. Relative Humidity: 0 to 95 percent, noncondensing.

d. Altitude: Sea level to 4000 feet (1220 m).

3. The UPS shall perform as specified in this article while supplying rated full-load current, composed of any combination of linear and nonlinear load, up to 100 percent nonlinear load with a load crest factor of 3.0, under the following conditions or combinations of the following conditions:

a. Inverter is switched to battery source.

b. Steady-state ac input voltage deviates up to plus or minus 10 percent from nominal voltage.

c. Steady-state input frequency deviates up to plus or minus 5 percent from nominal frequency.

d. THD of input voltage is 15 percent or more with a minimum crest factor of 3.0, and the largest single harmonic component is a minimum of 5 percent of the fundamental value.

4. Minimum Duration of Supply: If battery is sole energy source supplying rated full UPS load current at 80 percent power factor, duration of supply is seven (7) minutes, minimum.

5. Input Voltage Tolerance: System steady-state and transient output performance remains within specified tolerances when steady-state ac input voltage varies plus 10, minus 15 percent from nominal voltage.

6. Overall UPS Efficiency: Equal to or greater than 94 percent at 100 percent load, and 92 percent at 50 percent load.

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7. Maximum Acoustical Noise: 70dB, "A" weighting, emanating from any UPS component under any condition of normal operation, measured 1 meter from nearest surface of component enclosure.

8. Maximum Energizing Inrush Current: Eight times the full-load current.

9. Maximum AC Output-Voltage Regulation for Loads up to 50 Percent Unbalanced: Plus or minus 2 percent over the full range of battery voltage.

10. Output Frequency: 60 Hz, plus or minus 0.5 percent over the full range of input voltage, load, and battery voltage.

11. Limitation of harmonic distortion of input current to the UPS shall be as follows:

a. Description: Either a tuned harmonic filter or an arrangement of rectifier-charger circuits shall limit THD to 5 percent, maximum, at rated full UPS load current, for power sources with X/R ratio between 2 and 30.

12. Maximum Harmonic Content of Output-Voltage Waveform: 5 percent RMS total and 3 percent RMS for any single harmonic, for 100 percent rated nonlinear load current with a load crest factor of 3.0.

13. Maximum Harmonic Content of Output-Voltage Waveform: 5 percent RMS total and 3 percent RMS for any single harmonic, for rated full load with THD up to 50 percent, with a load crest factor of 3.0.

14. Minimum Overload Capacity of UPS at Rated Voltage: 125 percent of rated full load for 10 minutes, and 150 percent for 30 seconds in all operating modes.

15. Maximum Output-Voltage Transient Excursions from Rated Value: For the following instantaneous load changes, stated as percentages of rated full UPS load, voltage shall remain within stated percentages of rated value and recover to, and remain within, plus or minus 2 percent of that value within 100 ms:

a. 50 Percent: Plus or minus 5 percent.

b. 100 Percent: Plus or minus 5 percent.

c. Loss of AC Input Power: Plus or minus 1 percent.

d. Restoration of AC Input Power: Plus or minus 1 percent.

16. Input Power Factor: A minimum of 0.85 lagging when supply voltage and current are at nominal rated values and the UPS is supplying rated full-load current.

17. Input power factor shall not go leading when the system is under load or no load. System shall inherently prevent a leading power factor or shall have provision to automatically, disconnect internal component to prevent a leading input power factor.

18. EMI Emissions: Comply with FCC Rules and Regulations and with 47 CFR 15 for Class A equipment.

C. System Description

1. This Section includes three-phase UPS Modules and System Controls in a multi-module, parallel redundant configuration, on-line, double-conversion, static-type, UPS installations complete with transient voltage surge suppression, input harmonics reduction via input filter, rectifier-charger, battery, battery disconnect device, inverter, static bypass transfer switch, remote UPS monitoring provisions.

2. Automatic operation includes the following:

a. Normal Conditions: Load is supplied with power flowing from the normal power input terminals, through the rectifier-charger and inverter, with the battery connected in parallel with the rectifier-charger output.

b. Abnormal Supply Conditions: If normal supply deviates from specified and adjustable voltage, voltage waveform, or frequency limits, the battery supplies energy to maintain constant, regulated inverter power output to the load without switching or disturbance.

c. If normal power fails, energy supplied by the battery through the inverter continues supply-regulated power to the load without switching or disturbance.

d. When power is restored at the normal supply terminals of the system, controls automatically synchronize the inverter with the external source before transferring the load. The rectifier-charger then supplies power to the load through the inverter and simultaneously recharges the battery.

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e. If the battery becomes discharged and normal supply is available, the rectifier-charger charges the battery. On reaching full charge, the rectifier-charger automatically shifts to float-charge mode.

f. If any element of the UPS system fails and power is available at the normal supply terminals of the system, the static bypass transfer switch switches the load to the normal ac supply circuit without disturbance or interruption.

g. If a fault occurs in the system supplied by the UPS, and current flows in excess of the overload rating of the UPS system, the static bypass transfer switch operates to bypass the fault current to the normal ac supply circuit for fault clearing.

h. When the fault has cleared, the static bypass transfer switch returns the load to the UPS system.

i. If the battery is disconnected, the UPS continues to supply power to the load with no degradation of its regulation of voltage and frequency of the output bus.

3. Manual operation includes the following:

a. Turning the inverter off causes the static bypass transfer switch to transfer the load directly to the normal ac supply circuit without disturbance or interruption.

b. Turning the inverter on causes the static bypass transfer switch to transfer the load to the inverter.

4. Maintenance Bypass/Isolation Switch Operation: Switch is interlocked so it cannot be operated unless the static bypass transfer switch is in the bypass mode. Device provides manual selection among the three conditions in subparagraphs below without interrupting supply to the load during switching:

a. Full Isolation: Load is supplied, bypassing the UPS. Normal UPS ac input circuit, static bypass transfer switch, and UPS load terminals are completely disconnected from external circuits.

b. Maintenance Bypass: Load is supplied, bypassing the UPS. UPS ac supply terminals are energized to permit operational checking, but system load terminals are isolated from the load.

c. Normal: Normal UPS ac supply terminals are energized and the load is supplied through either the static bypass transfer switch and the UPS rectifier-charger and inverter, or the battery and the inverter.

d. UPS shall interface with SKRU system located in distribution panel provider under other section. Coordinate interface requirements with the distribution panel manufacturer.

1.2 RELATED WORK

A. Section 26 00 09p – Basic Electrical Requirements, is an integral part of this section.

Requirements and work indicated in 26 00 09p are not repeated in this Section.

1.3 COORDINATION

A. Coordinate work under provisions indicated in Section 26 00 09p.

1.4 QUALIFICATIONS / QUALITY ASSURANCE

A. Conform to requirements indicated in Section 26 00 09p.

B. NFPA Compliance: Mark UPS components as suitable for installation in computer rooms according to NFPA 75.

C. UL Compliance - Listed and labeled under UL 1778.

D. Deliver equipment in fully enclosed vehicles after specified environmental conditions have been permanently established in spaces where equipment is to be placed.

E. Store equipment in spaces with environments controlled within manufacturer's ambient temperature and humidity tolerances for non-operating equipment.

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F. Factory Testing: Prior to shipment the manufacturer shall complete a documented test procedure to test all functions of each UPS module and guarantee compliance with the specification. The factory test shall be performed in the presence of the customer as well as the engineer. All costs related to travel and lodging shall be borne by the manufacturer. Identify the costs carried in the proposal to be credited to the owner if owner decides to not attend factory testing. The manufacturer shall provide a copy of the test report upon request. Refer to Part 2 of this specification for additional details.

1.5 REGULATORY REQUIREMENTS AND STANDARDS

A. Conform to requirements indicated in Section 26 00 09p.

1.6 SUBMITTALS

A. Submit as required here in and under Section 26 00 09p.

B. Product Data: For each type of product indicated. Include data on features, components, ratings, and performance.

C. Shop Drawings: For UPS. Include plans, elevations, sections, details, and attachments to other work.

1. Detail equipment assemblies and indicate dimensions, weights, components, and location and identification of each field connection. Show access, workspace, and clearance requirements; details of control panels; and battery arrangement.

2. Wiring Diagrams: For power, signal, and control wiring.

D. Seismic Qualification Certificates: For UPS equipment, from manufacturer.

1. Basis for Certification: Indicate whether withstand certification is based on actual test of assembled components or on calculation.

2. Dimensioned Outline Drawings of Equipment Unit: Identify center of gravity and locate and describe mounting and anchorage provisions.

3. Detailed description of equipment anchorage devices on which the certification is based and their installation requirements.

E. Manufacturer Certificates: For each product, from manufacturer.

F. Factory Test Reports: Comply with specified requirements.

G. Field quality-control reports.

H. Performance Test Reports: Indicate test results compared with specified performance requirements, and provide justification and resolution of differences if values do not agree.

I. Operation and Maintenance Data: For UPS units to include in emergency, operation, and maintenance manuals.

J. Warranties: Sample of special warranties.

K. Submit with proposal manufacturer of battery to be provided.

L. Include in the shop drawing submittal package a complete list of all required interconnecting wiring between UPS modules and system static switch, as well as any interface requirements between UPS modules, system static switch, and the supply and distribution switchboards.

Include separation requirements as well as recommended conduits sizes for cables to be routed between equipment.

M. Submit type of switchboard and circuit breakers to be used.

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1.7 EXTRA MATERIALS

A. Furnish under provisions indicated in Section 26 00 09p.

B. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Fuses: One for every 10 of each type and rating, but no fewer than one of each.

2. Cabinet Ventilation Filters: Two complete set(s). One set to be used to replace all filters after final acceptance and final cleaning of area is complete.

C. Provide the following additional materials:

1. Manufacturers “Level 3” enhanced spare parts kit for (1) UPS system.

2. A complete set of AC and DC capacitors for (1) UPS system.

1.8 PROJECT RECORD DOCUMENTS

A. Submit under provisions indicated in Section 26 00 09p.

B. Provide list of all UPS settings and the values of they set to (e.g. max input current, reduced battery charging current, etc.)

1.9 OPERATION AND MAINTENANCE DATA

A. Submit under provisions indicated in Section 26 00 09p.

1.10 WARRANTY

A. Provide under provisions indicated in Section 26 00 09p.

B. Battery Warranties: Specified form in which manufacturer and Installer agree to repair or replace UPS system storage batteries that fail in materials or workmanship within specified warranty period.

1. Warranted Cycle Life for Valve-Regulated, Lead-Calcium Batteries: Equal to or greater than that represented in manufacturer's published table, including figures corresponding to the following, based on annual average battery temperature of 77 deg F:

Discharge Rate Discharge Duration Discharge End

Voltage Cycle Life

8 hours 8 hours 1.67 6 cycles 30 minutes 30 minutes 1.67 20 cycles 15 minutes 45 seconds 1.67 120 cycles

C. UPS Warranties: Specified form in which manufacturer and Installer agree to repair or replace components that fail in materials or workmanship within special warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 UPS SYSTEMS

A. Basis-of-Design Product: Subject to compliance with requirements provide the product indicated on the Drawings or the first listed manufacturer or product below. Subject to compliance with requirements a comparable product by one of the others listed may be acceptable:

1. MGE UPS SYSTEMS – Schneider Electric.

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2. Eaton Corporation; Powerware Division.

3. Liebert Corporation; a division of Emerson.

4. Mitsubishi Electric Automation, Inc.

5. Toshiba Corporation; Industrial Systems.

B. Electronic Equipment: Solid-state devices using hermetically sealed, semiconductor elements.

Devices include rectifier-charger, inverter, static bypass transfer switch, and system controls.

C. Enclosures: Comply with NEMA 250, Type 1, unless otherwise indicated.

D. Control Assemblies: Mount on modular plug-ins, readily accessible for maintenance.

E. Surge Suppression: Protect internal UPS components from surges that enter at each ac power input connection including main disconnect switch, static bypass transfer switch, and maintenance bypass/isolation switch. Protect rectifier-charger, inverter, controls, and output components.

1. Use factory-installed surge suppressors tested according to IEEE C62.41.1 and IEEE C62.41.2, Category B.

2. Additional Surge Protection: Protect internal UPS components from low-frequency, high-energy voltage surges described in IEEE C62.41.1 and IEEE C62.41.2. Design the circuits connecting with external power sources and select circuit elements, conductors, conventional surge suppressors, and rectifier components and controls so input assemblies will have adequate mechanical strength and thermal and current-carrying capacity to withstand stresses imposed by 40-Hz, 180 percent voltage surges described in IEEE C62.41.1 and IEEE C62.41.2.

F. Maintainability Features: Mount rectifier-charger and inverter sections and the static bypass transfer switch on modular plug-ins, readily accessible for maintenance.

G. Seismic-Restraint Design: UPS assemblies, subassemblies, and components (and fastenings and supports, mounting, and anchorage devices for them) shall be designed and fabricated to withstand static and seismic forces.

H. UPS Cabinet Ventilation: Redundant fans or blowers draw in ambient air near the bottom of cabinet and discharge it near the top rear.

I. Output Circuit Neutral Bus, Conductor, and Terminal Ampacity: Rated phase current times a multiple of 1.73, minimum.

2.2 RECTIFIER-CHARGER

A. Capacity: Adequate to supply the inverter during rated full output load conditions and simultaneously recharge the battery from fully discharged condition to 95 percent of full charge within 10 times the rated discharge time for duration of supply under battery power at full load.

B. Output Ripple: Limited by output filtration to less than 0.5 percent of rated current, peak to peak.

C. Control Circuits: Immune to frequency variations within rated frequency ranges of normal and emergency power sources.

1. Response Time: Field adjustable for maximum compatibility with local generator-set power source.

D. Battery Float-Charging Conditions: Comply with battery manufacturer's written instructions for battery terminal voltage and charging current required for maximum battery life.

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2.3 INVERTER

A. Description: Pulse-width modulated, with sinusoidal output. Include a bypass phase synchronization window adjustment to optimize compatibility with local engine-generator-set power source.

B. Inverse gate bi-polar transistor (IGBT) based inverters shall also be considered.

2.4 STATIC BYPASS TRANSFER SWITCH

A. Description: Solid-state switching device providing uninterrupted transfer. A contactor or electrically operated circuit breaker automatically provides electrical isolation for the switch.

B. Switch Rating: Continuous duty at the rated full UPS load current, minimum.

2.5 BATTERY

A. Basis-of-Design Product: Subject to compliance with requirements provide the product indicated on the Drawings or the first listed manufacturer or product below. Subject to compliance with requirements a comparable product by one of the others listed may be acceptable:

1. C&D Technologies, Inc.; Standby Power Division.

2. Eaton Corporation; Powerware Division.

3. EnerSys.

4. Panasonic Corporation of North America; Panasonic Industrial Company.

5. Substitutions: Under provisions of Section 26 00 10.

B. Description: Valve-regulated, recombinant, lead-calcium units, factory assembled in an isolated compartment of UPS cabinet, complete with battery disconnect switch.

1. Arrange for drawout removal of battery assembly from cabinet for testing and inspecting.

C. Seismic-Restraint Design: Battery racks, cabinets, assemblies, subassemblies, and components (and fastenings and supports, mounting, and anchorage devices for them) shall be designed and fabricated to withstand static and seismic forces.

2.6 CONTROLS AND INDICATIONS

A. Description: Group displays, indications, and basic system controls on a common control panel on front of UPS enclosure.

B. Minimum displays, indicating devices, and controls include those in lists below. Provide sensors, transducers, terminals, relays, and wiring required to support listed items. Alarms include audible signals and visual displays.

C. Indications: Plain-language messages on a digital LCD or LED.

1. Quantitative indications shall include the following:

a. Input voltage, each phase, line to line.

b. Input current, each phase, line to line.

c. Bypass input voltage, each phase, line to line.

d. Bypass input frequency.

e. System output voltage, each phase, line to line.

f. System output current, each phase.

g. System output frequency.

h. DC bus voltage.

i. Battery current and direction (charge/discharge).

j. Elapsed time discharging battery.

2. Basic status condition indications shall include the following:

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a. Normal operation.

b. Load-on bypass.

c. Load-on battery.

d. Inverter off.

e. Alarm condition.

3. Alarm indications shall include the following:

a. Bypass ac input overvoltage or undervoltage.

b. Bypass ac input overfrequency or underfrequency.

c. Bypass ac input and inverter out of synchronization.

d. Bypass ac input wrong-phase rotation.

e. Bypass ac input single-phase condition.

f. Bypass ac input filter fuse blown.

g. Internal frequency standard in use.

h. Battery system alarm.

i. Control power failure.

j. Fan failure.

k. UPS overload.

l. Battery-charging control faulty.

m. Input overvoltage or undervoltage.

n. Input transformer overtemperature.

o. Input circuit breaker tripped.

p. Input wrong-phase rotation.

q. Input single-phase condition.

r. Approaching end of battery operation.

s. Battery undervoltage shutdown.

t. Maximum battery voltage.

u. Inverter fuse blown.

v. Inverter transformer overtemperature.

w. Inverter overtemperature.

x. Static bypass transfer switch overtemperature.

y. Inverter power supply fault.

z. Inverter transistors out of saturation.

aa. Identification of faulty inverter section/leg.

bb. Inverter output overvoltage or undervoltage.

cc. UPS overload shutdown.

dd. Inverter current sensor fault.

ee. Inverter output contactor open.

ff. Inverter current limit.

4. Controls shall include the following:

a. Inverter on-off.

b. UPS start.

c. Battery test.

d. Alarm silence/reset.

e. Output-voltage adjustment.

D. Dry-form "C" contacts shall be available for remote indication of the following conditions:

1. UPS on battery.

2. UPS on-line.

3. UPS load-on bypass.

4. UPS in alarm condition.

5. UPS off (maintenance bypass closed).

E. Emergency Power Off Switch: Capable of local operation and operation by means of activation by external dry contacts.

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2.7 MONITORING BY REMOTE STATUS AND ALARM PANEL

A. Description: Labeled LEDs on panel faceplate indicate basic status conditions. Audible signal indicates alarm conditions. Silencing switch in face of panel silences signal without altering visual indication.

1. Cabinet and Faceplate: Surface or flush mounted to suit mounting conditions indicated.

2.8 MONITORING BY REMOTE COMPUTER

A. Description: Communication module in unit control panel provides capability for remote monitoring of status, parameters, and alarms specified in "Controls and Indications" Article.

The remote computer and the connecting signal wiring are not included in this Section.

Include the following features:

1. Connectors and network interface units or modems for data transmission via RS-232 link.

2. Software designed for control and monitoring of UPS functions and to provide on-screen explanations, interpretations, diagnosis, action guidance, and instructions for use of monitoring indications and development of meaningful reports. Permit storage and analysis of power-line transient records. Designs for Windows applications, software, and computer are not included in this Section.

3. Provide ModBus interface.

2.9 BASIC BATTERY MONITORING

A. Manufacturers: Subject to compliance with requirements, provide products by the manufacturer specified:

1. Albercorp.

2. BTECH, Inc.

3. Eaton Corporation; Powerware Division.

4. Substitutions: Under provisions of Section 26 00 10.

B. Battery Ground-Fault Detector: Initiates alarm when resistance to ground of positive or negative bus of battery is less than 5000 ohms.

C. Battery compartment smoke/high-temperature detector initiates an alarm when smoke or a temperature greater than 75 deg C occurs within the compartment.

D. Annunciation of Alarms: At UPS control panel.

2.10 CONNECTIONS

A. Provide two hole, long barrel compression lugs eith inspection windows for all power and grounding connections. Make provisions on bus and provide lugs.

2.11 SOURCE QUALITY CONTROL

A. Factory test complete UPS system before shipment. Use simulated battery testing. Include the following:

1. Test and demonstration of all functions, controls, indicators, sensors, and protective devices.

2. Full-load test.

3. Transient-load response test.

4. Overload test.

5. Power failure test.

B. Observation of Test: Give 14 days' advance notice of tests and provide opportunity for Owner's representative to observe tests at Owner's choice.

C. Report factory test results. Include the following data:

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1. Description of input source and output loads used. Describe actions required to simulate source load variation and various operating conditions and malfunctions.

2. List of indications, parameter values, and system responses considered satisfactory for each test action. Include tabulation of actual observations during test.

3. List of instruments and equipment used in factory tests.

PART 3 - EXECUTION

3.1 GROUNDING

A. Separately Derived Systems: If not part of a listed power supply for a data-processing room, comply with NFPA 70 requirements for connecting to grounding electrodes and for bonding to metallic piping near isolation transformer.

3.2 IDENTIFICATION

1. Identify each battery cell individually.

3.3 FIELD QUALITY CONTROL

A. Manufacturer’s Field Service: Engine a factory-authorized service representative to inspect, text, and adjust components, assemblies, and equipment installations, including connections and to assist in testing.

B. Perform tests and inspections and prepare test reports in accordance with Section 26 00 09p.

C. The UPS system will be considered defective if it does not pass test and inspections.

3.4 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain the UPS.

3.5 INTEGRATED SYSTEMS TESTING

A. Manufacturer to provide field technicians to support integrated systems testing (commissioning level 5) in addition to and after successful completion of Acceptance Testing (commission level 4). Provide for (1) 12 hour day of Integrated Systems Testing for each UPS system (e.g. each UPS static switch/isolation bypass switch).

END OF SECTION