UPS Spec-80Kw-FY24-Final.pdf

TECHNICAL SPECIFICATIONS ARGONNE NATIONAL

LABORATORY DOCUMENT NO. J450-

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STATIC UNINTERRUPTIBLE POWER SUPPLY

BUILDING 450 MOTOR CONTROL CENTER & UPS REPLACEMENT

UNINTERRUPTIBLE POWER SYSTEM (UPS)

1.0 GENERAL

1.1 SCOPE

This specification defines the electrical and mechanical characteristics and requirements for a continuous‐duty three‐phase, solid‐state, uninterruptible power system (UPS). The UPS shall be provided with static switch, battery cabinet, 3 breaker maintenance bypass panel and other accessories to make it fully operational system. The UPS shall provide high‐quality AC power for sensitive electronic equipment loads. The UPS shall be completely factory assembled.

The following UPS shall be provided:

Control UPS 2 ‐‐‐‐‐‐‐‐‐‐‐‐80KW (scalable to 100KW capacity) ‐‐‐Base

Central UPS 1 ‐‐‐‐‐‐‐‐‐‐‐‐80KW (scalable to 100KW capacity) ‐‐‐Option 1

Central UPS 2‐‐‐‐‐‐‐‐‐‐‐‐‐80KW (scalable to 100KW capacity) ‐‐‐Option 2

The new units will replace existing APC equipment. The dimensions of the existing

80K UPS is 38 ½" (W) x 31 ½" (D) x 55 ½" (H). Width of the existing battery cabinet for

Central UPS 1 and Central UPS 2 is 38 ½ (W). Width of the existing battery cabinet for Control UPS 1 and Control UPS 2 is 30”. Width of new combined units shall not exceed 68 ½”. Bypass panel is mounted separately.

1.2 STANDARDS

The UPS shall be designed in accordance with the applicable sections of the current revision of the following documents. Where a conflict arises between these documents and statements made herein, the statements in this specification shall govern.

• ANSI C62.41 (IEEE 587)

• ASME

• CSA 22.2, No. 107.1

• FCC Part 15, Class A

• ISO 9001

• National Electrical Code (NFPA‐70)

• NEMA PE‐1

• OSHA

• UL Standard 1778

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The UPS shall be ETL listed per UL Standard 1778 Uninterruptible Power Supplies, and shall be CSA Certified.

1.3 SYSTEM DESCRIPTION

1.3.1 Design Requirements ‐ UPS Module

A. Voltage ‐‐‐ Input/output voltage specifications of the UPS shall be:

B. Rectifier and Bypass Input ‐‐‐ 480V volts, three‐phase, 3‐wire‐plus‐ground Wye source.

Output ‐‐‐ 480V volts, three‐phase, 3‐wire‐plus‐ground.

C. Output Load Capacity ‐‐‐ Specified output load capacity of the UPS shall be 80kW

1.3.2 Design Requirements ‐ Matching Battery Cabinet

A. Battery Cells ‐‐‐‐‐‐‐‐ Sealed, lead‐acid, valve‐regulated, minimum 10‐ year design life.

B. Reserve Time ‐‐‐‐‐‐ 18 minutes at full load, 0.8 power factor, with ambient temperature between 20° and 30°C.

C. Recharge Time ‐‐‐‐‐ to 95% capacity within ten (10) times discharge time. Advanced battery management.

1.3.3 Modes of Operation

The UPS shall be designed to operate as an on‐line, double‐conversion, reverse‐transfer system in the following modes:

A. Normal ‐ The mission critical AC equipment is to be continuously powered by the UPS inverter. The rectifier/charger derives power from a utility AC source and supplies DC power to the inverter while simultaneously float‐charging a power reserve battery.

B. Emergency ‐ Upon failure of utility AC power, the mission critical AC equipment is to be powered by the inverter, which without any switching obtains its power from the battery. There shall be no interruption in power to the critical load upon failure or restoration of the utility AC source.

C. Recharge ‐ Upon restoration of utility AC power, after a utility AC power outage, the rectifier/charger shall automatically restart, walk‐in, and gradually resume providing power to the inverter and also recharge the battery system.

D. Bypass ‐ If the UPS must be taken out of service for maintenance or repair, or should the inverter overload capacity be exceeded, the static bypass transfer switch shall perform a reverse transfer of the connected equipment from the inverter to the bypass source without interruption in power to the mission critical AC equipment.

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1.3.4 Performance Requirements

1.3.4.1 AC Input to UPS

A. Voltage Configuration: three‐phase, 3‐wire plus ground.

B. Voltage Range: +10%, ‐15% of nominal at 480 V.

C. Frequency: Nominal frequency +/‐5%.

D. Power Factor: Up to 0.96 lagging at nominal input voltage and full rated UPS output with the optional input filter. Minimum 0.80 lagging without optional input filter.

E. Inrush current: 800% of full load current maximum.

F. Current Limit: 115% of nominal AC input current maximum and

100% of nominal for optional generator operation.

G. Input Current Walk‐In: 15 seconds to full rated input current maximum. Field selectable 5 or 20 seconds.

H. Current Distortion: less than 3% THD maximum at full load.

I. Surge Protection: The UPS shall be able to sustain input surges without damage per criteria listed in ANSI C62.41 Category A and B.

1.3.4.2 AC Output, UPS Inverter

A. Voltage Configuration: three‐phase, 4‐wire plus ground

B. Voltage Regulation:

± 0.5% three‐phase RMS average for a balanced three‐phase load for the combined variation effects of input voltage, connected load, battery voltage, ambient temperature, and load power factor.

± 1.0% three‐phase RMS average for a 100% unbalanced load for the combined variation effects of input voltage, connected load, battery voltage, ambient temperature, and load power factor.

C. Frequency: Nominal frequency +/‐0.1%.

D. Frequency Slew Rate: 5.0 Hertz per second maximum. Field selectable from 0.1 to 5.0 Hz per second.

E. Phase Displacement:

± 0.5 degree for balanced load, ± 1.0 degrees for 100% unbalanced load.

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F. Bypass Line Sync Range:

± 0.5 Hertz, Field selectable± 0.5 to 5.0 Hz.

G. Voltage Distortion:

1% total harmonic distortion (THD) for linear loads.

2.5% THD for 100% nonlinear loads (3:1 crest factor) without kVA/kW derating.

H. Load Power Factor Range: 1.0 to 0.7 lagging without derating.

I. Output Power Rating: Rated kVA at 0.8 lagging power factor.

J. Overload Capability:

125% for ten minutes (without bypass source).

150% for one minute (without bypass source).

200% for 10 cycles, pulse paralleling with the static switch.

K. Inverter Output Voltage Adjustment: +/‐5% manual adjustment.

L. Voltage Unbalance: 100% unbalanced load ± 1%.

0. Fault Clearing: Sub‐cycle current of at least 300%.

1.4 AMBIENT CONDITIONS

The UPS shall be able to withstand the following environmental conditions without damage or degradation of operating characteristics:

A. Operating Ambient Temperature

UPS Module: 32°F to 104°F (0°C to 40°C}.

Battery: 40°F to 77°F (+5 to 25°C} without reducing battery life.

B. Storage/Transport Ambient Temperature UPS

Module: ‐4°F to 158°F (‐20°C to 70°C}. Battery:

‐4°F to 92°F (‐20°C to 33°C}

C. Relative Humidity

0 to 95%, non‐condensing.

D. Altitude

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Operating: to 6,600 ft. (2,000 meters) above Mean Sea Level. Derated for higher altitude applications.

Storage/Transport: to 40,000 ft. (12,200 meters) above Mean Sea Level.

E. Audible Noise

Noise generated by the UPS under any condition of normal operation shall not exceed 60 dBA measured 1 meter from surface of the UPS.

1.5 TECHNICAL DOCUMENTATION

1.5.1 General

a. All technical documents shall be issued to: Mr.

S. Manasra, Building 214 Argonne National Laboratory 9700 South Cass Avenue Lemont, Illinois 60439

b. All submittals shall contain the following reference information:

1. Argonne Purchase Order Number:

2. Vendor's Shop Order Number:

3. Project Name: Building 400 UPS R replacement

4. Work Project Number: PRJ1005932‐PH01‐PT5712

5. Date of Submittal

6. Revision Number

7. Document Number

1.5.2 Approval Drawings

a. The vendor shall submit five copies of approval drawings within 4 weeks of award notification. The vendor shall not begin equipment fabrication until the Laboratory has provided comments and approved the submittal. The Laboratory will provide review comments and/or approval of submitted drawings within 2 weeks of receiving the documents.

As a minimum, the following drawings shall be submitted for approval:

1) Arrangement and layout drawings. Floor plans shall show support and hold‐down locations and requirements.

2) Sufficient structural details to show exact terminal block locations and conduit and/or cable entrance locations and dimensions for

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both top and bottom entrance.

3) Required clearance for opening doors.

4) Bus bar locations and configurations.

5) Elevation and section view showing dimension locations of internal component.

6) Dimensional units shall be English units followed by SI (metric) units in brackets.

7) Incoming and outgoing power cable terminator positions.

8) Exact location of grounding connections.

9) Weight of equipment.

10) One line diagrams showing all instrument transformers, relays, meters, indicating instruments, switches and other pertinent devices. ANSI device function numbers shall be used throughout.

11) Elementary (schematic) diagrams showing all control devices and device contacts, each of which shall be labeled with its proper ANSI device function number. Each elementary diagram shall show device and terminal block terminal number.

12) Connection wiring diagrams showing approximate physical location of all items in each cubicle, wiring within each cubicle and all interconnecting wiring between cubicles. The diagrams shall show identification of all terminal and terminal blocks and wires. Clear identification, by some distinguishing means, shall be made of all wiring, which is to be installed by Argonne. This shall include, but is not limited to, leads from external current transformers, and auxiliary contacts to remote devices.

13) Bill‐of‐materials.

b. Argonne checking of approval drawings shall not relieve the vendor of responsibility for errors of omissions, which may exist even though work is performed in accordance with, approved drawings. The checking of vendor's drawings by Argonne is a gratuitous assistance and Argonne assumes no responsibility for errors or omissions. If errors or omissions are discovered, the vendor at no additional cost to Argonne shall correct them.

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1.5.3 Final Drawings

Five sets of final as‐built drawings and one set of electronic files shall be provided before equipment is shipped.

1.5.4 Test Reports

Three copies of certified test reports shall be provided to Argonne before the UPS or any components are shipped. Once the test reports have been reviewed and approved by Argonne, the vendor will be permitted to ship the switchgear.

1.5.5 Installation and Maintenance Manuals

Five copies of installation and maintenance manuals shall be shipped with the switchgear. Each manual shall have a sturdy binder, which can withstand rugged use in the field. The following items shall be contained in each manual:

a. Complete parts list, vendor and description

b. Recommended spare parts list and current prices

c. Technical literature on all electrical components

d. Installation instructions

e. Maintenance and repair procedures

f. One set of approved drawings

g. One set of test reports

1.6 Tests

1.6.1 Argonne or its representative reserves the right to inspect the equipment and witness the final acceptance test at the factory.

1.6.2 The vendor shall perform and provide written certification of all standard tests as specified by ANSI, NEMA, and IEEE. The vendor shall notify Argonne two weeks in advance of test performance.

1.7 Delivery, Storage and Handling

1.7.1 Delivery of UPS and its accessories shall be F.O.B. job site. All packages must be tagged with project no. and purchase order no. Vendor shall advise the project manager at least one week in advance of the scheduled equipment arrival at the Laboratory.

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1.7.2 Shipping preparations shall be in accordance with vendor's standards unless noted otherwise. Vendor shall provide all shipping preparations necessary to ensure that the equipment arrives in excellent working condition when handled by commercial carriers.

1.7.3 Each shipping section of stationary structures shall be furnished with removable lifting angles and/or plates suitable for crane hooks or slings.

Each shipping section shall also be furnished with removable steel channel base plates, which will permit using pipe rollers or dollies without damaging the frame steel of the equipment.

1.7.4 Fuse element shall be individually crated and tagged with its proper compartment number and the equipment number of the assembly to which it belongs.

1.7.5 Each shipping section of stationary structures shall be provided with a readily visible identification tag bearing the equipment number of the assembly of which it is a part.

1.8 Performance warranties

1.8.1 See Argonne Terms and Conditions.

2.0 PRODUCT

2.1 MANUFACTURERS

Approved manufacturers: Eaton

2.2 FABRICATION AND CONSTRUCTION

2.2.1 Materials

All materials of the UPS shall be new, of current manufacture, high grade and free from all defects and shall not have been in prior service except as required during factory testing.

The maximum working voltage, current, and di/dt of all solid‐state power components and electronic devices shall not exceed 75% of the ratings established by their manufacturer. The operating temperature of solid‐state component sub‐ assembly shall not be greater than 75% of their ratings.

Electrolytic capacitors shall be computer grade and be operated at no more than

95% of their voltage rating at the maximum rectifier charging voltage.

2.2.2 Wiring

Wiring practices, materials and coding shall be in accordance with the requirements of the National Electrical Code (NFPA 70). All bolted connections of bus bars, lugs, and cables shall be in accordance with requirements of the National

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Electrical Code and other applicable standards. All electrical power connections are to be torqued to the required value and marked with a visual indicator.

Provision shall be made for power cables to enter or leave from the top or bottom of the UPS cabinet.

2.2.3 Construction and Mounting

The UPS unit, comprised of input transformer (if required}, rectifier/charger with input filter, inverter, static transfer switch, output transformer and maintenance bypass switch, shall be housed in a single free‐standing NEMA type 1 enclosure.

Cabinet doors/covers shall require a tool for gaining access. Casters and stops shall be provided for ease of installation. Front access only shall be required for expedient servicing, adjustments, and installation. The UPS cabinet shall be structurally adequate and have provisions for hoisting, jacking, and forklift handling.

The UPS cabinet shall be cleaned, primed, and painted with the manufacturer's standard color. The UPS shall be constructed of replaceable subassemblies.

Printed circuit assemblies shall be plug connections. Like assemblies and like components shall be interchangeable.

2.2.4 Cooling

Cooling of the UPS shall be by forced air. Low‐velocity fans shall be used to minimize audible noise output. Fan power shall be provided by the UPS output.

The thermal design, along with all thermal and ambient sensors, shall be coordinated with the protective devices before excessive component or internal cabinet temperatures are exceeded.

2.2.5 Grounding

The AC output neutral shall be electrically isolated from the UPS chassis. The UPS chassis shall have an equipment ground terminal. Provisions for local bonding shall be provided.

2.3 COMPONENTS

2.3.1 Input Transformer

The input transformer if required shall be factory installed inside the UPS module cabinet without increasing the standard footprint.

2.3.2 Rectifier/Charger

2.3.2.1 General

The term rectifier/charger shall denote the solid‐state equipment and controls necessary to convert incoming AC power to regulated DC power for input to the inverter and for battery charging. The rectifier/charger shall be a phase‐controlled, solid‐state SCR type with constant voltage/current limiting control circuitry.

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The rectifier/charger shall include an input filter to reduce reflected input current distortion to 10% THD at full load with nominal input voltage.

Another benefit of the input filter shall be to maintain the input power factor at 0.90‐0.96 lagging minimum from full load to half load with nominal input voltage.

2.3.2.2 AC Input Current Limiting

The rectifier/charger unit shall be provided with AC input current limiting whereby the maximum input current shall be limited to 115% of the full input current rating. The rectifier/charger shall operate at a reduced current limit mode whenever the critical load is powered from the UPS static bypass circuit such that the maximum UPS input current will not exceed 115% of full load input current. In addition, the rectifier/charger shall have a separate battery current limit, adjustable from O to 15% of the full load input current. An optional second circuit shall limit the battery recharge current to zero when activated by a customer‐supplied contact closure to signal a customer function such as generator operation.

2.3.2.3 Input Current Walk‐In

The rectifier/charger shall contain a timed walk‐in circuit that causes the unit to gradually assume the load over a 15‐second time interval after input voltage is applied. Walk‐in time shall be field selectable for 5 or 20 seconds.

2.3.2.4 Fuse Failure Protection

Power semiconductors in the rectifier/charger shall be fused with fast‐ acting fuses, so that loss of any one‐power semiconductor shall not cause cascading failures. ∙

2.3.2.5 DC Filter

The rectifier/charger shall have an output filter to minimize ripple voltage into the battery. Under no conditions shall ripple voltage into the battery exceed 1% RMS. The filter shall be adequate to insure that the DC output of the rectifier/charger will meet the input requirements of the inverter.

The inverter shall be able to operate from the rectifier/charger with the battery disconnected.

2.3.2.6 Automatic Rectifier Restart

Upon restoration of utility AC power, after a utility AC power outage and prior to a UPS automatic end‐of‐discharge shutdown, the rectifier/charger shall automatically restart, walk‐in, and gradually resume providing power to the inverter and also recharge the battery system.

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2.3.2.7 Battery Recharge

In addition to supplying power for the inverter load, the rectifier/charger shall be capable of producing battery charging current sufficient to replace

95% of the battery discharge power within ten (10) times the discharge time.

After the battery is recharged, the rectifier/charger shall maintain the battery at full charge until the next emergency operation.

2.3.2.8 DC Over Voltage Protection

There shall be DC over‐voltage protection so that if the DC voltage rises to the pre‐set limit, the UPS is to shut down automatically and initiate an uninterrupted transfer of the connected equipment to the static bypass line..

2.3.3 Inverter

2.3.3.1 General

The term inverter shall denote the solid‐state equipment and controls to convert DC power from the rectifier/charger or battery to regulated AC power for supporting the critical load. The inverter shall use Insulated Gate

Bipolar Transistors (IGBTs) in a phase‐controlled, pulse width modulated

(PWM) design capable of providing the specified AC output.

2.3.3.2 Overload Capability

The inverter shall be capable of supplying current and voltage for overloads exceeding 100% and up to 200% of full load current. A status indicator and audible alarm shall indicate overload operation. The UPS shall transfer the load to bypass when overload capacity is exceeded.

2.3.3.3 Fault Clearing and Current Limit

The inverter shall be capable of supplying an overload current of 150% of its full‐load rating for one minute. For greater currents or longer time duration, the inverter shall have electronic current‐limiting protection to prevent damage to components. The critical load will be transferred to the static bypass automatically and uninterrupted. The inverter shall be self‐ protecting against any magnitude of connected output overload. Inverter control logic shall sense and disconnect the inverter from the critical AC load without the requirement to clear protective fuses.

2.3.3.4 Step Load Response

The output voltage shall be maintained to within± 5.0% with a 0‐to‐100% step load change or a 100%‐to‐O step load change. The output voltage

‐ shall recover to within 1% of nominal voltage within 1 cycle.

2.3.3.5 Voltage Distortion

For linear loads, the output voltage total harmonic distortion (THD) shall not be greater than 1%. For 100% rated load of 3:1 crest factor nonlinear loads, Page: 12 Revision: 0 the output voltage total harmonic distortion shall not be greater than 2.5%.

The output rating is not to be derated in kVA or kW due to the 100% nonlinear load with 3:1 crest factor.

2.3.3.6 Output Power Transformer

A dry‐type power transformer shall be provided for the inverter AC output, if required. It shall have copper wiring exclusively. The transformers hottest spot winding temperature shall not exceed the temperature limit of the transformer insulation class of material when operating at full load at maximum ambient temperature.

2.3.3.7 Phase Balance

Electronic controls shall be provided to regulate each phase so that an unbalanced loading will not cause the output voltage to go outside the specified voltage unbalance or phase displacement. With 100% load on one phase and 0% load on the other 2 phases or 100% load on 2 phases and 0% load on the other phase, the voltage balance is to be within 1% and the phase displacement is to be 120 degrees within ±1 degree.

2.3.3.8 Fuse Failure Protection

Power semiconductors in the inverter shall be fused with fast‐acting fuses, so that loss of any one‐power semiconductor will not cause cascading failures.

2.3.3.9 Inverter Shutdown

For rapid removal of the inverter from the critical load, the inverter control electronics shall instantaneously turn off the inverter transistors.

Simultaneously, the static transfer switch shall be turned on to maintain continuous power to the critical load.

2.3.3.10 Inverter DC Protection

The inverter shall be protected by the following disconnect levels:

• DC Over voltage Shutdown

• DC Under voltage Warning (Low Battery Reserve), user adjustable from 1 to 99 minutes

• DC Under voltage Shutdown (End of Discharge)

2.3.3.11 Over Discharge Protection

To prevent battery damage from over discharging, the UPS control logic shall automatically raise the shutdown voltage set point as discharge time increases beyond fifteen (15) minutes.

2.3.3.12 Inverter Output Voltage Adjustment

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The inverter shall use a software control to adjust the output voltage from

+/‐ 5% of the nominal value.

2.3.3.13 Output Frequency

An oscillator shall control the output frequency of the inverter. The oscillator shall be temperature compensated and hold the inverter output frequency to +/‐ 0.1% for steady state and transient conditions.

Frequency drift shall not exceed 0.1% during a 24‐hour period. Total frequency deviation, including short time fluctuations and drift, shall not exceed 0.1% from the rated frequency.

2.3.4 Display and Controls

2.3.4.1 Monitoring and Control

The UPS shall be provided with a microprocessor based unit status display and controls section designed for convenient and reliable user operation. A graphical display shall be used to show a single‐line diagram of the UPS, and shall be provided as part of the monitoring and controls sections of the UPS.

All of the operator controls and monitors shall be located on the front of the

UPS cabinet. The monitoring functions such as metering, status and alarms shall be displayed on the graphical LCD display. Additional features of the monitoring system shall include:

• LED indicators for UPS operation.

• Menu‐driven display with pushbutton navigation

• Real time clock (time and date)

• Alarm history with time and date stamp

• Battery backed‐up memory

2.3.4.2 Metering

The following parameters shall be displayed:

• Input AC voltage line‐to‐line

• Input AC current for each phase

• Input frequency

• Battery voltage

• Battery charge/discharge current

• Output AC voltage line‐to‐line and line‐to‐neutral for each phase

• Output AC current for each phase

• Output frequency

• Percent of rated load being supplied by the UPS

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• Battery time left during battery operation

2.3.4.3 Alarm Messages

The following alarm messages shall be displayed:

• Input Line Fault

• Input Phase Rotation Error

• Input Over/Under Frequency

• Input Current Limit

• Rectifier Fail

• Battery Test Failed

• Battery Low Warning (Adjustable 1 To 99 Minutes)

• Battery Low Transfer

• DC Over Voltage Steady State

• Bypass Frequency Error

• Load On Bypass

• Excessive Auto Retransfers

• SBS SCR Shorted

• Bypass Sync Error

• Input Phase Loss

• I DC Peak

• Output Under Voltage Transfer

• Output Over Voltage Transfer

• Inverter Overload

• SBS Overload

• Inverter Overload Transfer

• Transfer Failed Shutdown

• Hardware Shutdown

• Output Power Supply Fail

• Inverter Control Fault Transfer

• EPO Latched (remote EPO activated)

• System Fan Fail

• Ambient Over Temperature Limit

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• Over Temperature Timeout Shutdown

An audible alarm shall be provided and activated by any of the above alarm conditions.

2.3.4.4 Status Messages

The following UPS status messages shall be displayed:

• Normal operation

• On SBS

• Load on UPS

• Load on bypass

• User Shutdown

• Battery Discharging

2.3.4.5 Controls

UPS start‐up, shutdown, and bypass operations shall be accomplished through the front‐panel pushbutton controls. Menu‐driven user prompts shall be provided to guide the operator through system operation without the use of additional manuals. Pushbuttons shall be provided to display the status of the UPS and to test and reset visual and audible alarms. A mimic diagram screen shall be available on the LCD screen to depict a single‐line diagram of the UPS and indicate switch positions and power flow.

2.3.4.6 On‐Line Battery Test

The UPS shall be provided with a menu‐driven On‐Line Battery Test feature.

The test shall ensure the capability of the battery to supply power to the inverter while the load is supplied power in the normal mode. If the battery fails the test, the system shall automatically do the following:

• Maintain the load through the UPS

• Display a warning message

• Sound an audible alarm

The battery test feature shall have the following user selectable options:

• Interval between tests (2 to 9 weeks)

• Date and time of initial test

• Enable/disable test

2.3.5 Static Transfer Switch

2.3.5.1 General

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A static transfer switch and bypass circuit shall be provided as an integral part of the UPS. The static switch shall be a naturally commutated high‐ speed static (SCR‐type) device rated to conduct full load current continuously. The switch shall have an overload rating of 110% rated load continuously, 200% rated load for five seconds. The static transfer switch shall also have fault‐clearing capabilities of 1100 amperes for 1 second, 3000 amperes for 10 cycles, and 6000 amperes peak for the first half cycle.

The static transfer switch control logic shall contain an automatic transfer control circuit that senses the status of the inverter logic signals, and operating and alarm conditions. This control circuit shall provide an uninterrupted transfer of the load to an alternate bypass source, without exceeding the transient limits specified herein, when an overload or malfunction occurs within the UPS, or for bypassing the UPS for maintenance.

2.3.5.2 Uninterrupted Transfer

The transfer control logic shall automatically turn on the static transfer switch, transferring the critical AC load to the bypass source, after the transfer logic senses any of the following conditions:

• Inverter overload capacity exceeded

• AC output over voltage or under voltage

• Battery protection period expired

• UPS fault condition

The transfer control logic shall inhibit an automatic transfer of the critical load to the bypass source if any of the following conditions are present:

• Inverter/bypass voltage difference exceeding preset limits

• Bypass frequency out of limits

• Bypass out‐of‐synchronization range with inverter output

2.3.5.3 Uninterrupted Retransfer

Retransfer of the mission critical AC equipment from the bypass source to the inverter output shall be automatically initiated unless inhibited by manual control. The transfer control logic shall inhibit an automatic retransfer of the critical load to the inverter if one of the following conditions exists:

• Bypass out of synchronization range with inverter output

• Inverter/bypass voltage difference exceeding preset limits

• Overload condition exists in excess of inverter full load rating

• UPS fault condition present

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2.3.6 Input Filter

The rectifier/charger shall be provided with an input filter to reduce reflected input voltage and current distortion to a minimum at full load and meet IEEE standards

2.3.7 External Maintenance Bypass Cabinet

A separate wall‐mounted external maintenance bypass cabinet shall be provided to enable the UPS module to be completely isolated from the electrical system while the critical load is powered through the external maintenance bypass line. This cabinet shall provide make‐before‐break operation for transfers to and from the external maintenance bypass line. This matching cabinet will be mounted behind the UPS cabinet. Only front access shall be required for installation and service.

Cabinet shall contain circuit breakers and a meter to monitor voltage, current power factor, etc. Meter shall be Schneider electric ION 6200 or Eaton IQ260 or approved equal. Meter shall be completely wired at the factory.

2.3.8 Battery Cabinet System

The matching battery cabinet shall include sealed, lead‐acid valve regulated battery cells housed in a separate cabinet that matches the UPS cabinet styling to form an integral system line‐up. Battery cells shall be mounted on slide‐out trays for ease of maintenance. A battery disconnect circuit breaker with under voltage release (UVR) shall be included for isolation of the battery system from the UPS module. The UPS shall automatically be disconnected from the battery by opening the breaker when the battery reaches the minimum discharge voltage level. Casters and leveling feet shall also be provided with the battery cabinet for ease of installation. When the application calls for the battery cabinet to be bolted to the UPS cabinet, the interconnecting cables are to be provided, precut to the correct length and cable lugs installed, by the UPS manufacturer.

2.3.9 Communications

The UPS shall be able to be monitored remotely via communication devices. UPS shall be provided with network management card and building management integration card. These devices shall be mounted in a separate enclosure on the side of UPS to connect to existing cables.

3.0 EXECUTION

3.1 The UPS will be installed by others.

END OF SPECIFICATION

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BUILDING 450 MOTOR CONTROL CENTER & UPS REPLACEMENT

METER SCHNEIDER

l

) ELECTRIC ION 6200

STATIC

SWITCH

Battery Cabinet UPS Cabinet

UTILITY SOURCE

208V, 3111,4W

-Maintenance Bypass panel

LOAD

- 208 V, 3111, 4W

TYPICAL UPS ARRANGEMENT SKETCH

TECHNICAL SPECIFICATIONS ARGONNE NATIONAL LABORATORY

DOCUMENT NO. J450-123-W-T007

STATIC UNINTERERRUPTIBLE POWER

SUPPLY BUILDING 450 MOTOR CONTROL

CENTER & UPS REPLACEMENT

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