qualitrol_900_910
DESCRIPTION
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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
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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
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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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QUALITROL® 900/910 RPRR rapid pressure rise relays
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QUALITROL® 900/910 RPRR rapid pressure rise relays
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-P06-01L-01E.
www.qualitrolcorp.com
Flange mount (horizontal mount shown)
Thread mount (vertical mount shown)
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