HCI 434E/444E - Technical Data Sheet

1 HCI 434E/444E - Technical Data SheetHCI434E/444 ESPECIFICATIONS & OPTIONSSTANDARDSN ewage Stamford industrial generators meet therequirements of BS EN 60034 and the relevant sectionof other international standards such as BS5000, VDE0530, NEMA MG1-32, IEC34, CSA , standards and certifications can be considered REGULATORSSX440 AVR - STANDARDWith this self-excited system the main stator providespower via the Automatic Voltage Regulator (AVR) to theexciter stator. The high efficiency semi-conductors ofthe AVR ensure positive build-up from initial low levelsof residual exciter rotor output is fed to the main rotor througha three-phase full-wave bridge rectifier.

2 The rectifier isprotected by a surge suppressor against surgescaused, for example, by short circuit or SX440 will support a range of electronicaccessories, including a 'droop' Current Transformer(CT) to permit parallel operation with other 3-phase sensing is required with the self-excitedsystem, the SX421 AVR must be AVRThis AVR also operates in a self-excited system. Itcombines all the features of the SX440 with,additionally, three-phase rms sensing for improvedregulation and performance.

3 Over voltage protection isprovided via a separate circuit breaker. An engine reliefload acceptance feature is built in as AVRThis sophisticated AVR is incorporated into theStamford Permanent Magnet Generator (PMG) PMG provides power via the AVR to the mainexciter, giving a source of constant excitation powerindependent of generator output. The main exciteroutput is then fed to the main rotor, through a full wavebridge, protected by a surge suppressor.

4 The AVR hasin-built protection against sustained over-excitation,caused by internal or external faults. This de-excitesthe machine after a minimum of 5 engine relief load acceptance feature can enable fullload to be applied to the generator in a single three-phase sensing is required with the PMG systemthe MX321 AVR must be recommend three-phase sensing for applicationswith greatly unbalanced or highly non-linear AVRThe most sophisticated of all our AVRs combines all thefeatures of the mx341 with, additionally, three-phaserms sensing.

5 For improved regulation and voltage protection is built-in and short circuitcurrent level adjustments is an optional & ELECTRICAL PERFORMANCEAll generator stators are wound to 2/3 pitch. Thiseliminates triplen (3rd, 9th, 15th ..) harmonics on thevoltage waveform and is found to be the optimumdesign for trouble-free supply of non-linear loads. The2/3 pitch design avoids excessive neutral currentssometimes seen with higher winding pitches, when inparallel with the mains.

6 A fully connected damperwinding reduces oscillations during paralleling. Thiswinding, with the 2/3 pitch and carefully selected poleand tooth designs, ensures very low & TERMINAL BOXS tandard generators are 3-phase reconnectable with 12ends brought out to the terminals, which are mountedon a cover at the non-drive end of the steel terminal box contains the AVR and providesample space for the customers' wiring and has removable panels for & KEYSAll generator rotors are dynamically balanced to betterthan BS6861:Part 1 Grade for minimum vibration inoperation.

7 Two bearing generators are balanced with ahalf insulation system is class 'H'.All wound components are impregnated with materialsand processes designed specifically to provide the highbuild required for static windings and the highmechanical strength required for rotating ASSURANCEG eneratorsaremanufacturedusingproductionp rocedures having a quality assurance level to BS ENISO stated voltage regulation may not be maintained inthe presence of certain radio transmitted signals.

8 Anychange in performance will fall within the limits ofCriteria 'B' of EN 61000-6-2:2001. At no time will thesteady-state voltage regulation exceed 2%.NB Continuous development of our products entitles usto change specification details without notice, thereforethey must not be regarded as binding. Front cover drawing typical of product SYSTEM SEPARATELY EXCITED BY REGULATION % %With 4% ENGINE GOVERNINGSUSTAINED SHORT CIRCUITCONTROL SYSTEMSELF EXCITED REGULATION % %With 4% ENGINE GOVERNINGSUSTAINED SHORT CIRCUITWILL NOT SUSTAIN A SHORT CIRCUIT INSULATION SYSTEMCLASS HPROTECTIONRATED POWER FACTORSTATOR WINDINGWINDING PITCHWINDING LEADSSTATOR WDG.

9 RESISTANCE ROTOR WDG. SUPPRESSIONBS EN 61000-6-2 & BS EN 61000-6-4,VDE 0875G, VDE 0875N. refer to factory for othersWAVEFORM DISTORTIONNO LOAD < NON-DISTORTING BALANCED LINEAR LOAD < OVERSPEEDBEARING DRIVE END BEARING NON-DRIVE ENDWEIGHT COMP. GENERATORWEIGHT WOUND STATORWEIGHT WOUND ROTORWR INERTIASHIPPING WEIGHTS in a cratePACKING CRATE SIZETELEPHONE INTERFERENCECOOLING AIRVOLTAGE SERIES STAR380/220400/231415/240440/254416/2404 40/254460/266480/277 VOLTAGE PARALLEL STAR 190/110200/115208/120220/127208/120220/1 27230/133240/138 VOLTAGE SERIES DELTA 220/110230/115240/120254/127240/120254/1 27266/133277/138kVA BASE RATING FOR REACTANCE VALUES325325325325381394406419Xd DIR.

10 AXIS 'd DIR. AXIS ''d DIR. AXIS QUAD. AXIS ''q QUAD. AXIS LEAKAGE NEGATIVE ZERO ARE SATURATEDVALUES ARE PER UNIT AT RATING AND VOLTAGE INDICATEDT'd TRANSIENT TIME ''d SUB-TRANSTIME 'do FIELD TIME ARMATURE TIME CIRCUIT RATIO1090 kg 156 x 87 x 107(cm) 1095 kg 155 x 87 x 107(cm) 1 BEARING2 BEARING2250 Rev/Min470 kgHCI434 m /sec 1030 m /sec 1240 cfm50 HzTHF<2%60 HzTIF<50377 kgm2 WINDING 311400 LAYER LAPTWO THIRDS121030 kg1024 kg470 kgREFER TO SHORT CIRCUIT DECREMENT CURVES (page 7)BALL.