Totally Enclosed Fan Cooled High ... - Marathon …

1 Totally Enclosed Fan CooledHigh Voltage Cage Induction MotorsFlowpak SeriesA REGAL-BELOIT COMPANYM otors for the Long Run!Flowpak 2 Flowpak 31 Flowpak motors are part of an integratedrange of induction machines,manufactured in a modern productionfacility dedicated to total is a range of Totally enclosedfan Cooled cage induction motorsavailable horizontally or verticallymounted for connection to supplyvoltages up to kV, outputsupto 800 Flowpak2 range hasthree frame sizes withshaft heights 280, 315& 355 mm andFlowpak 3 range hasalso three framesizes with shaftcentre height 315,355 & 400 designs cover2 to 10 pole speeds andall sizes / speeds areall sizes/speeds areavailable with greaselubricated rolling Marathon ElectricFlowpak range of inductionmachines has been availablefor many years and has beenwidely accepted throughout theworld for use in a wide rangeof arduous and operational features include : high efficiency - upto 97% (For Flowpak 2) and 96% (Flowpak 3)Low noise level (MSPL) - upto 85 dB (A) at 1 mt.

2 Distance with silencearrangementsLow stg. current - upto 550% for 4 PoleHigh torque - 80% Voltage Starting on load "square low" drivesShort manufacturing cycle - 12 WeeksHigh flexibility - detailed study of market requirementsLow Cost - Internationally policy of continuous improvementhas allowed the machine to remaincompetitive in on aggressiveinternational market and the latestdevelopments described in thisbrochure will secure a future well intothe next 32 Ratings & PerformancesFlowpak motors comply with therequirements of IEC 34-1, the relevantparts of BS4999 and BS5000, IS:325& other relevant Indian standards. Theyare designed for continuous dutycorresponding to Duty Type S1 of IEC34-1 and BS4999, part 101 section3, with a temperature rise by resistancenot exceeding 80K in a maximumambient temperature of 40 C. Thestandard rated outputs are taken fromthe R40 series of preferred numbersin accordance with the requirementsof clause 7 of BS4999 Part 101 andPart 1 of IEC 34-1.

3 For enquiries withintermediate ratings the next highestpreferred rating will be offered andperformance data will be quotedaccordingly. This maximises the costand lead time benefits available fromthe range are in accordance withBS4999 Part 141, IEC 72 and of Protection byEnclosureAll motors in the Flowpak range havea degree of protection IP55 asstandard, conforming to therequirements of IEC 34-5, BS4999 Part105 & IS:4691. This is defined as dustprotected and suitable for operationin heavy seas (ships deck duty).Method of CoolingThe standard of cooling form as definedwithin BS4999 Part 106, is IC 0141 - Totally Enclosed fan Cooled . (Theequivalent IEC 34-6 nomenclature forthis enclosure type is IC411).Forced ventilation (IC 416) is alsoavailable, suitable for constant (690 V) designations are inaccordance with IEC 34-7 Code 11and BS4999 Part 107. The standardmounting arrangements available onall frame sizes - Horizontal footIM3011 - Vertical flangeIM2001 - Horizontal foot and flangeSupplyStandard ratings are based on supplyvoltages of 3300 or 6600 volts on a50 Hz supply frequency and 2300 or4160 volts on a 60 Hz supplyfrequency.

4 Other voltages andfrequency combinations one availableon winding insulation system is classF in accordance with IEC 85 andBS2757. More detailed informationon insulation & Vacuum Pressure andImpregnation (VPI) systems/processesare available on request in a separatepublication entitled Resivac - The VPIinsulation ApplicationsThe range design has been developedother considering many industrystandards and most requirements canbe met with the range standard plusstandard optional and Specifications50 Hz60 Hz800600400200 VOLTAGE33006600330066003300660033006600 POLES (REV/MIN)2 (3000)4 (1500)6 (1000)8 (750)POWER OUTPUT1000 KWFlowpak 23 Stator Frame and EndshieldsStator Frames and endshelds areproduced from high grade cast ironwith deep external cooling Endshields are fitted to theframe and incorporate the feet, terminal facings and twolifting eyebolt bosses are cast integralwith the frame. Horizontal frames alsohave jacking screw provision and pilotdowel holes as Flowpak range of machines havepermanently fixed air gaps achievedby close tolerance machining of standard bearing arrangementhas C3 internal clearance metric rollingelement bearings that are mounteddirectly into the bore of the quality lithium based greasecontaining oxidation and corrosioninhibitors is used and pressure greaserelief facilities are a standard rolling element bearings have longrelubrication intervals and an L10bearing life of greater than 40, contained or flow lubricated plainbearings can also be fitted if lubricated plain bearings arefitted with inlet and outlet flanged stubpipes.

5 For connection to an oil supplyprovided by vertically mounted motors the rotorweight is supported by the top bearingwhich would either be of the deepgroove ball or duplex type dependingon the axial loading to bearings used are of the highestquality produced by internationallyrecognised manufacturers ensuringspare parts are readily available. Aninsulated bearing arrangement canalso be provided on bearings have been selected onthe basis that the machines are directlycoupled, without external thrust beingimposed by the driven equipment. Ifthis is not the case then details shouldbe provided to allow appropriatedesign 2 Flowpak 3 FRAMEPOLESABDEHHDAECL*245771075140280107 1106719017004-12457710751402801071106719 017002508800751403151146110221618254-125 0880095170315114611022161855261090075140 3551226114225421004-12610900951703551126 11422542130DC280F710DC315F800DC355F900 Basic Dimensions of FLOWPAK-2 Motors* L may be increased by 200 mm (approx) for silencer arrangement.

6 Detail to beconfirmed after receipt of : All motors are with Antifrication rolling element & Rotor CoresMachines have a laminated andinsulated sheet steel stator coreassembly, which is built on a mandreland welded under compression, beforefitting into the stator rotor core made of laminated steelsheet is an interference fit on the core is compressed betweenfabricated steel endplates and theassembly is then securely locked intoposition with a steel key CoilsStator coils are formed from annealedcopper strip, insulated with mica. Loopsof the appropriate number of turns areformed, the coil straight portion isbonded and the loop is then pulled toshape. The coil is insulated with layersof mica tape, dependent on voltage,prior to the application of the Connections and BracingThe coils are inserted in the slots, andfirmly wedged in position with epoxyglass or magnetic slot are securely braced toprevent movement during service.

7 Strictquality control is exercised during thewinding *2508800751403151146110221617804-1250880 0951703151146110221618102610900751403551 226114225420504-126109009517035511261142 254208026861000801704001336118228023304- 126861000100210400133611822802370DC315F3 DC35F3DC400F3 Basic Dimensions of FLOWPAK-3 Motors* L may be increased by 200 mm (approx) for silencer arrangement. Detail to beconfirmed after receipt of : All motors are with Antifrication rolling element winding is high voltage tested atboth mains and high frequencyimmediately after the coils are insertedand wedged, and again afterconnecting. On completion of windingphase resistances and impedances arechecked for balance and conformancewith stators are Vacuum PresureImpregnated (VPI) with an epoxy VPI system utilises materials witha minimum resin content at the windingstage, and places greater emphasison the final impregnation not only extracts all air from thewinding, but also forces the resin,under pressure, into the interstices ofthe coils until they are Totally filled.

8 Allcoil packings retain a high proportionof resin and the connections becomeone consolidated ring after rotatecuring in time and temperaturecontrolled 2 Flowpak 36 After impregnation the windings aresubjected to the voltage tests specifiedin BS4999 Part 101, section 9. Allmachines one subject to loss BarsAll motors have copper or copper alloyrotor cages. Tight fitting rotor bars arebutt brazed to copper or copper alloyendrings. All rotors are dynamicallybalanced to more stringent levels thanthose specified in ISO2372. Overallmotor vibration severity does notexceed the limits specified in are manufactured from carbonmanganese steel of grade 150M28 toBS970 or equivalent. Standard motorshave a single plain parallel shaftextension with a single keyway andmotors are balanced with a half keyfitted. The shaft extension is drilled andtapped in accordance with BS4999 Part & CowlsFlowpak 2 motors are fitted withunidirectional low noise level fansmanufactured from galvanised cowls are also manufactured fromsteel.

9 For Flowpak 3, one additionalinternal fan is used in place of wafterto get more thermal otherwise specified, motors aresupplied with a single fabricated steel,air insulated terminal box (for kV)containing three mains terminalssuitable for direct-on-line starting. Thebox is mounted on the side of a topmounted adaptor and is supplied witha blank gland plate. Special glandscan be supplied to order. Phasesegregated terminal box is providedfor kV Motors and for kVMotors on request. A wide range ofalternative boxes are specified, access to thewinding neutral point can beprovided by removal of a steelcover or within a separateterminal prospective systemfault level should beadvised to enable selectionof the most suitable 2 range allows the flexibilityof fitting a wide variety ofinstrumentation and auxiliariesincluding winding and bearingtemperature sensing elements, vibrationtransducers, anti-condensation heatersand silencing ancillary terminal boxes canbe arranged on the top mountedterminal box 27 FacilitiesMARATHON Electric has implementedmajor restructuring of facilities.

10 Thenew equipment together with theintroduction of upgraded CAD facilitieshas laid to significant reduction indelivery lead flexibility has alsoimproved and the introduction of'World Class' systems has enabled theCompany to introduce many recent restructuring hastransformed the Kolkata Plant intodesignated production flow lines and of test facilities will enableus to test motors upto 4000KW, 11KV,4 introduction of new facilities hasimproved production andmanufacturing FacilitiesLatest computer hardware & softwareavailable with Auto CAD facility in press installed for accurate rotorcore dust free facility providedfor coil making and insulation free facility installed for Motor Insertion Machine installed forinsertion of wound core into painting boothVacuum Pressure & Impregnation PlantTest PlantFlowpak 29 Paint SystemSurfaces are degreased then cleanedto ISO 8501 and ISO 8503, whichdefine surface cleanliness are then primed using amodified synthetic resin red oxideprimer to a dry single finish coat of two pack Epoxypaint is QualityThe complete range of HT Motors aremanufactured to a Quality Assuranceplan which lays down stringentacceptence norms for each stage materials are critically tested in-house to ensure the Flowpak 2 productrange meets National and are welcome to carry outstage inspection or final inspectionduring Flowpak range has been designedwith a low overall noise level.