AP-P06-01A-01E_900_910 (1)

QUALITROL® 900/910 RPRR Rapid pressure rise relays

Protection and detection of dangerous sudden pressure changes

• 100% factory calibrated and tested to ensure performance

• Multiple mounting and calibration options for gas or oil applications

• From the original creator of mechanical rapid pressure rise relays

Description Patented mechanical device for

detection of sudden pressure events based on the

rate of pressure rise and safe limits established

by transformer manufacturers. When a dangerous

pressure rise has been detected, the QUALITROL

rapid pressure rise relay (RPRR) will change

state. This can be used as an alarm or trip signal

to minimize the potential of transformer

tank damage.

Application For transformer and other

electrical apparatus protection. Can be

used in both oil (QUALITROL 900) or

gas (QUALITROL 910) space of

a transformer.

Product Summary

900 910 RPRR A FINAL.indd 1 1/7/09 10:34:54 AM

QUALITROL® 900/910 RPRR rapid pressure rise relays

Protection and detection of • Devicescalibratedtoquicklyalarmortripduring dangerous sudden pressure changes rapidpressurerisechanges(seeresponsecurvesbelow) • Actuationonlyoccursbasedonrateofpressureriseandwillnot occurundernormalpressurevariationscausedbytemperature changeandvibration • Canbesubjectedtofullvacuumor20PSIpositivepressure withoutdamage • Standardoperationfrom-40to180ºF(-40to82ºC) • Specialunitsavailableforoperationat-67ºF(-55ºC)

` 100% factory calibrated and • Unitsareserializedandcalibrationrecordsaremaintained tested to ensure performance • Factorytestedforswitch(contact)performanceandresponsetime • FieldtestkitavailableforsimpleGO/NO-GOtesttoassureproper functionalityofthedevice

Multiple mounting and calibration • Flangeorthreadmountingoptionsavailableforbothverticalor options for gas or oil applications horizontalmounting • Modelscalibratedforproperresponseingasoroilspaceapplications (seeresponsecurvesbelow)

From the original creator of • Originalcreatorofpatentedbellowstechnologyformechanical mechanical rapid pressure rise relays rapidpressurerisedetection • Over 25 years of experience and refinement in rapid pressure rise protectionwithgreaterthan100,000unitsinstalled

RPRR response curves

900 Series Response Limits 910 Series Response Limits


RPRR features

ELECTRICAL CONNECTION

ATMOSPHERIC VENT

FLANGE MOUNT

2 ½” - 8 NPT THREAD MOUNT

SENSING BELLOWS(PRESSURE INPUT)

GAS BLEED SYSTEM

Rapidpressureriserelaysofferquickreactiontoprotectthetransformer.Unlikeothersuddenpressureprotectiondevices,QUALITROLRPRRsoperateinoilorgasspaceforoptimaldetectionofpressureevents.

Reaction speed

Formaximumprotection,singlechannelormulti-sensorQUALITROL930electronicpressuremonitorsareavailable.

Typicallyusedinthemostcriticalsituations,thesemonitorsaddcontinuouspressureremotemonitoring,adjustablesensitivity,staticandrapidpressuredetection,and2outof3logicforreliabletripfunctionality.

Maximum protection

OPTIONAL CONNECTOR


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Components and accessories

Seal-in relay (909-300) • Latchingrelayto“seal-in”momentaryswitch actuationscommonwithdetectionofrapid pressureriseevents • Configurable for VAC or VDC • Twooutputrelays • LEDlightstoindicateactivestatusandactuation • Low profile • Redundantmake/breakcircuitrequirement protectsagainstfalsetripsduetodamagedwiring

• UL certified for use in hazardous locations (Class1,Div2)

Factory test fixture (FIX-601) • Mimics the calibration and verification testingperformedatthefactoryforall QUALITROLRPRRs • Designedforuseinrepairshopsandtransformer manufacturingplants • BuiltinLEDindicatorlampsshowtest statusandresults

Field test kit (KIT-013-1) • Easy field test kit for “go/no-go” testing of allQUALITROLRPRRs

• Ruggedcarryingcase •Setupandtestinstructionsincase • Powersupplyandotherrequiredcomponents providedinkit


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TECHNICAL SPECIFICATIONS

Mechanical Mounting Vertical or horizontal in gas or oil mediums

Mountingstyle Flangemountorthreadmount

Dimensions Flangemount Four½”diameterboltslotsequallyspacedona4”boltcircle

Threadmount 2 ½” - 8 NPT tapered pipe male thread with 3” hex wrench flat

Materials Bleedvalve Nickelplatedbrass

Finish Thermosettingpowdercoat(ANSI#70gray)

Hardware Stainlesssteel

Housingandcover Diecastaluminum

O-ring seal Viton

Vent Brass or copper Environmental Ambientoperating -40°Fto180°F(-40°Cto82ºC).Specialunitsavailablefor temperatures operationdownto-67ºF(-55ºC)

Resistancetovibration Switchoperationnotaffectedwhensubjectedto50/60Hz, orwholemultiplesthereof NOTE: Vibration amplitude of installed relay should be minimized

Maxpressure 14.7to20PSIG(1.0to1.4bar) (sensingbellows) Electrical Switchtype Snapaction,SPSTorSPDT

Switchrating(AC) 10 A @ 125, 250 & 480 VAC

Inductivepower 75% factor(AC)

Switchrating(DC) ½ A @ 125 VDC - resistive ¼ A @ 250 VDC - resistive

Electricalconnection QUALITROLstylecircular3pin,ANSIstylecircular 3pin,militaryspecMS3102E16-10Pcircular3pin, flying leads or terminal box

Don’t see what you need? QUALITROLregularlycreatesmodelswithspecialcustomerrequirements. ContactyourlocalsalesrepresentativeorQUALITROLApplicationEngineer toreviewyourspecialrequirements.

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About QUALITROL®

QUALITROLCompanyLLCmanufacturessubstationandtransformermonitoringandprotectiondevicesusedby electricutilitiesandmanufacturingcompanies.Itisthegloballeaderinsalesandinstallationsoftransformerasset protectionequipment,faultrecordersandfaultlocators.Establishedin1945,QUALITROLCompanyproduces thousandsofdifferenttypesofproductsondemand,eachcustomizedtocustomers’uniquerequirements.

©2008 QUALITROL® Company LLC, an ISO 9001 system certified company. All rights reserved. Information subject to change without notice. Alltrademarksarepropertiesoftheirrespectivecompanies,asnotedherein.AP-P06-01A-01E.

[email protected]

www.qualitrolcorp.com

Flange mount (horizontal mount shown)

Thread mount (vertical mount shown)


Documents

AP-P06-01A-01E_900_910 (1)