Caterpillar Power Quality Caterpillar Power Quality SystemsSystems

The Caterpillar UPS SolutionThe Caterpillar UPS Solution•• Flywheel based NoFlywheel based No--Break solutionBreak solution

–– mechanical energy storage mechanical energy storage ---- infinite cycle lifeinfinite cycle life

•• Protects sensitive loads from: Protects sensitive loads from:

Power Factor Correction, Harmonics MitigationPower Factor Correction, Harmonics Mitigation

Power OutagesPower Outages

Voltage SagsVoltage Sags

Voltage Surges &Voltage Surges &TransientsTransients

The CAT UPS FamilyThe CAT UPS FamilyUPS 150/UPS 300UPS 150/UPS 300

UPS 300 “E”UPS 300 “E”

UPS 600UPS 600

UPS 900UPS 900

1200 1200 kVAkVA UPSUPS

Parallels to 3600 Parallels to 3600 kVAkVA N+1N+1

Active Power Lower Power UPSActive Power Lower Power UPS

480V, 60 Hz Ratings:480V, 60 Hz Ratings:

••65kVA/65kW65kVA/65kW

••80kVA/80kW80kVA/80kW

••100kVA/100kW100kVA/100kW

•• 130kVA/130kW130kVA/130kW

The Cat UPS AdvantageThe Cat UPS Advantage

•• Flywheel energy storage systemFlywheel energy storage system–– FieldField--provenproven–– >1,000 years of field application >1,000 years of field application

(>10 million hours)(>10 million hours)

•• Simple, reliable, power dense designSimple, reliable, power dense design

•• Low MaintenanceLow Maintenance

1200 kVA 31200 kVA 3--WireWire

DCAC

DCAC

DCAC

DCAC

ACDC

Line Static Disc. Switch

LineInductor

Filter Section

UtilityConverter

InputIsolation CB

Optional OutputIsolation CB

Static Bypass Switch

CSHV #1 CSHV #2DC Bus Wireway

Inverter Cabinet

Controls Cabinet

Static Switch Cabinet

I/O Cabinet

I/O Cabinet

Optional Maintenance Bypass CBMaintenance Bypass Cabinet

Parallel Online480 VAC3-Phase3-Wire & GND

Disconnects

FlywheelConverters

Flywheels

Architectural AdvantagesArchitectural Advantages•• Higher reliabilityHigher reliability

–– Less components in critical power pathLess components in critical power path–– No harmonic reflection, elimination of input filterNo harmonic reflection, elimination of input filter–– Gen set friendly Gen set friendly –– also limiting size of generatoralso limiting size of generator

•• Lower operating costsLower operating costs–– Highest efficiency for online UPSHighest efficiency for online UPS–– Low heat output, lower HVAC costsLow heat output, lower HVAC costs

•• Longer lifeLonger life–– DC capacitors have less wearDC capacitors have less wear–– No battery replacementNo battery replacement

Environmental RequirementsEnvironmental Requirements•• 00--4040ºº C C -- including energy storageincluding energy storage•• Anchored to fixed structure Anchored to fixed structure –– slab or stand for slab or stand for

raised floorraised floor•• Seismic anchoring options required for OSHPDSeismic anchoring options required for OSHPD•• Design for heat output of ~ 105 BTU per max kW Design for heat output of ~ 105 BTU per max kW

load average (~145 BTU per max kW worst case)load average (~145 BTU per max kW worst case)•• Outdoor containers available for almost any Outdoor containers available for almost any

environmentenvironment

Five Reasons to Select Cat UPSFive Reasons to Select Cat UPS•• High reliabilityHigh reliability

–– BatteryBattery--free, advanced power train design and redundancy optionsfree, advanced power train design and redundancy options•• Easier and Cheaper to installEasier and Cheaper to install

–– No batteries No batteries –– smaller footprint, less wiring, no battery accessoriessmaller footprint, less wiring, no battery accessories•• Lower operating costsLower operating costs

–– Efficiency savings on 1200 Efficiency savings on 1200 kVAkVA = ~$40k annually= ~$40k annually–– Lower maintenance costsLower maintenance costs

•• Predictability Predictability –– Exact knowledge of rideExact knowledge of ride--through, know schedule of maintenance and through, know schedule of maintenance and

replacement costsreplacement costs•• System integrationSystem integration

–– Most reliable means of getting to Most reliable means of getting to gengen set, same supplier for complete system set, same supplier for complete system integrationintegration

–– GenStartGenStart optionoption

Lessons LearnedLessons Learned•• 15 min 15 min vsvs 15 seconds is not the question. What gets you 15 seconds is not the question. What gets you

to diesel most reliably?to diesel most reliably?•• Deal with weak links in system designDeal with weak links in system design

–– These will eventually become your problemThese will eventually become your problem•• Automate system. Human error is biggest concern.Automate system. Human error is biggest concern.•• Monitor, Alarm, Notify (the right people), RecordMonitor, Alarm, Notify (the right people), Record•• The Process is the Product. As long as system works, The Process is the Product. As long as system works,

design, install, and service often more important than the design, install, and service often more important than the “iron”.“iron”.

12/09/9912/09/99

The Caterpillar UPS System: A Better Solution!

• Battery-free• Low cost maintenance• Lower cost to operate• Compact•• Gen set friendly•• Infinite cycle life•• No environmental concerns

www.catups.com