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Summary of Contents for Mecc Alte ECO43 Series
- Page 1 Self-regulatig alteriators ECO43-46 MV-HV Iistallatoi, Use aid Maiiteiaice Maiual Translatin if the iriginal instructins Dicument cide: MAOMAPPA023-GB Date if publicatin: 03/30/2020 Revisiin: 0...
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Page 3: Table Of Contents
Table of contents Geieral Iiformatoi..........................9 Respinsibility if the user........................9 Warranty............................9 After-sales assistance........................10 1.3.1 Infirmatin required ti ibtain after-sales assistance............10 Addressees if the manual.......................10 Machine identicatin details......................11 1.5.1 Descriptin if the priduct cide..................12 CE certicate...........................13 Manufacturer’s identicatin details....................13 Structure if dicumentatin......................13 1.8.1 Cimpisitin if the dicumentatin.................13 1.8.2... - Page 4 Traisport aid iistallatoi........................32 Transpirt............................32 4.1.1 Packaging.........................32 4.1.2 Lifting and handling......................33 4.1.3 Stirage..........................35 4.1.4 Measuring the insulatin resistance................35 Checking the supply........................35 Characteristcs if the installatin site....................35 Installatin............................36 4.4.1 Directin if ritatin if the alternatir................36 4.4.2 Ciupling the alternatir with the prime engine..............37 Ciupling with jiint - Dual suppirt alternatirs................37 Ciupling via SAE fange- Single suppirt alternatirs................38 Cimpensatin fir thermal dilatin....................39...
- Page 5 Ritir winding..........................68 Exciter statir winding........................68 Exciter ritir winding........................69 PMG winding...........................69 6.3.1 Cinversiin if the values relatve ti the insulatin resistance.........70 Nites...............................70 Maintenance if the suppirts......................71 6.4.1 Lubricatng the bearings....................71 6.4.2 Replacing grease in the bearings..................72 Alternatirs ECO43 (see 6.6.1 Disassembly of the Alternators ECO43)..........72 Alternatirs ECO46 (see 6.6.2 Disassembly of the Alternators ECO46)..........72 6.4.3 Replacing the bearings.....................73...
- Page 6 9.3.2 Electric and electrinic cimpinents................113 9.3.3 Ling term stirage......................113 Stirage fir mire than 18 minths....................113 Dispisal............................114 9.4.1 Dispisal if the machine....................114 Eiclosed documeitatoi.......................115 10.1 Diagrams and drawings.........................115 10.1.1 List if diagrams and drawings..................115 10.2 Cimpinents dicumentatin......................115 10.2.1 List if cimpinent dicumentatin.................115...
- Page 7 List of figures Figure 1- Data plate example....................11 Figure 2- ECO 43 alternatirs....................21 Figure 3- ECO 46 alternatirs....................21 Figure 4- ECO43 - MD35 - 1 bearing..................30 Figure 5- ECO43 - B3B14 - 2 bearings...................30 Figure 6- ECO46 - MD35 - 1 bearing..................30 Figure 7- ECO46 - B3B14 - 2 bearings...................30 Figure 8- Transpirt in pallet....................33 Figure 9- Transpirt in pallet civered with crate..............34...
- Page 8 List of Tables Table 1 - Generatir plate data....................11 Table 2 - Descriptin if the priduct cide................12 Table 3 - Winding cide......................12 Table 4 - Alignment - Individual suppirt................23 Table 5 - Alignment - Dual suppirt..................24 Table 6 - Niise........................24 Table 7 - Vilume if air required...................24 Table 8 - Deratng cieefcient....................24 Table 9 - Resistance if the windings at enviriment temperature if 20°C -ECO 43...
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Page 9: Geieral Iiformatoi
Mecc Alte S.p.a. Warraity The filliwing cinditins invalidate the terms if Warranty privided by Mecc Alte S.p.a.: ● Inappripriate use, ir in ither wirds, the use if the machine ither than as described in Piint 2.1 Intended Use. -
Page 10: After-Sales Assistance
● Inspectins and repair iperatins 1.3.1 Iiformatoi required to obtaii after-sales assistaice Whenever Mecc Alte S.p.a. after-sales assistance is required, the filliwing data must be privided regarding the Self-regulatng alternatirs (see alsi 1.5 Machine identicaton details): ● Type and midel if the alternatir. -
Page 11: Machine Identicatin Details
Machiie ideiticatoi details These instructins refer ti the filliwing Self-regulatng alternatirs midels: Name: Self-regulatng alternatirs Midels: ECO43-46 MV-HV An identicatin plate listng its main characteristcs has been applied ti the machine. See alsi 1.5.1 Descripton of the product code. Figure 1- Data plate example Phases Number if phases I [A]... -
Page 12: Descriptin If The Priduct Cide
1.5.1 Descriptoi of the product code Every alternatir is identied by a unique cide made up as described beliw. Cide example: ECO46HV-1L/4A T60H5S6 Descriptin: Type if alternatir ECO43 ECO46 ECO46 Viltage range HV: > 7.2 kV MV: >= 1 kV LV: <... -
Page 13: Ce Certicate
Revisiin Date 03/30/2020 ● The set if enclised dicuments listed in 10.1 Diagrams and drawings and 10.2 Components documentaton. Cintact Mecc Alte S.p.a. if in diubt regarding the structure and use if such dicumentatin. Self-regulating alternators ECO43-46 MV-HV Page 13/116... -
Page 14: Cintent If The Manual
1.8.2 Coiteit of the maiual This manual and its enclised dicumentatin enclised privide infirmatin in the filliwing aspects. General infirmatin and safety infirmatin are cintained in the filliwing chapters: 1 General Infirmatin 2 Safety Descriptin if the machine and the iperatin if its cimpisite parts, transpirt and installatin methids, and methids if use: 3 Descriptin and features 4 Transpirt and installatin... -
Page 15: Symbils And Cinventins Used In This Manual
Symbols aid coiveitois used ii this maiual Several cinventins are used in this manual ti privide the necessary infirmatin. The cinventins used are explained beliw. 1.9.1 Deiiitoi of wariiig levels Nitces cintaining warnings and explanatins are used ti warn users if pitental dangers ir draw atentin ti partcularly dangerius ir risky iperatins. -
Page 16: Cinventins Used In The Text
Notce Nitces if this type identfy a situatin if pitental danger, which if nit aviided, ciuld priduce damage ti priperty. NOTICE Cause if danger Pissible cinsequences ● Actin required ti aviid the danger Note NOTE This notce provides useful informaton regarding the safe and efcacious use of the machine. 1.9.2 Coiveitois used ii the text Texts preceded by ine if the filliwing symbils: ➔... -
Page 17: Safety
● If in diubt ir yiu have priblems understanding this manual ir any if its parts, we recimmend cintactng Mecc Alte S.p.a. ● Cintact Mecc Alte S.p.a. exclusively fir any type if technical assistance required. Self-regulating alternators ECO43-46 MV-HV Page 17/116... -
Page 18: Users And Their Riles
After-sales Service techiiciai The Mecc Alte S.p.a. After-sales Service Technician is an appripriately trained and authirised persin whi respinds directly ti Mecc Alte S.p.a. and is capable if perfirming maintenance and repair iperatins in the machine. Self-regulating alternators ECO43-46 MV-HV... -
Page 19: Safety Rules
● Whenever diubts arise in regard ti iperatin, di nit intervene directly but cintact the manufacturer Mecc Alte S.p.a. ● In additin ti the priduct dicumentatin enclised with the machine, alsi respect the standards and regulatins in firce giverning accident preventin and safety in the wirkplace. -
Page 20: Residual Risks
Residual risks The Self-regulatng alternatirs have been manufactured in cimpliance with current safety criteria. In spite if this, residual risks linked ti their iperatin remain that may cause injury ti persinnel ir damage ti priperty in partcular cases. DANGER Miving mechanical parts. Risk if crushing, dragging ir entrapment. -
Page 21: Descriptoi Aid Features
3 Descriptoi aid features Descriptoi of the Self-regulatig alteriators ECO43-46 MV-HV Figure 2- ECO 43 alternators Figure 3- ECO 46 alternators 1- Terminal bixes 2- Aux. bix 3- PMG (permanent magnet alternatir) 4- Alternatir ciiling air inlet 5- NDE shield 6- Casing 7- Cables passage aperture in nin-magnetc material. -
Page 22: Der2 Viltage Regulatir
The casing and shields are in steel. The shaft is in C45 steel with lick-set fan. The pritectin ratng is IP23. Isilatins are perfirmed in class H with impregnatin in epixy resin and vacuum-treated high- viltage parts, such as the statirs (special treatments are available in request). 3.1.1 DER2 voltage regulator The DER2 is a viltage regulatir fir synchrinius alternatirs, set-up fir iperatin and calibratin in stand-aline mide. -
Page 23: Additinal Temperature Pribes
3.2.4 Additoial temperature probes A temperature probe can be mounted on each bearing on the alternator. Ti set the alarm and stip temperatures, refer ti Setting the alarm and stop temperature in 4.4.4 Electric connecton. Techiical features Beliw ind the technical features if the Self-regulatng alternatirs. Refer alsi ti the alternatir Test Report. -
Page 24: Alternatirs Ciupling Dual Suppirt
Alteriators coupliig dual support Refer alsi ti Figure 11- and Figure 12- in page 37. Radial toleraice (mm) Aigular toleraice (mm/100 mm) 1,500 0.06 0.05 1,800 0.05 0.05 Table 5 - Alignment - Dual support 3.3.3 Noise ii dB (A) Alteriator 50 Hz 60 Hz... -
Page 25: Resistance If The Windings
3.3.6 Resistaice of the wiidiigs ECO 43 Type Voltages Pitch Alteriator Exciter PHASE- Ritir [Ω] 50Hz / 60Hz Statir [Ω] PHASE- PHASE statir ±5% [Ω] ±5% ±5% PHASE ritir [mΩ] ±5% [mΩ] ±5% ECO43MV 1VL4 A 1.5 / 1.3 10,2 ECO43MV 2VL4 A 2,15 1.5 / 1.3... -
Page 26: Table 9 - Resistance If The Windings At Enviriment Temperature If 20°C -Eco 43 Alternatirs
Type Voltages Pitch Alteriator Exciter PHASE- Ritir [Ω] 50Hz / 60Hz Statir [Ω] PHASE- PHASE statir ±5% [Ω] ±5% ±5% PHASE ritir [mΩ] ±5% [mΩ] ±5% ECO43MV 2XL4 A 6.3 / 6.6 2,55 1.5 / 1.3 10,2 ECO43HV 1VL4 A 11.4 1090 1.5 / 1.3... - Page 27 ECO 46 Type Voltages Pitch Alteriator Exciter PHASE- Ritir [Ω] 50Hz / 60Hz Statir [Ω] PHASE- PHASE statir ±5% [Ω] ±5% ±5% PHASE ritir [mΩ] ±5% [mΩ] ±5% ECO46MV 1L4 A 52,9 2,96 1.5 / 1.3 12.9 ECO46MV 2L4 A 44,6 3,32 1.5 / 1.3...
- Page 28 Type Voltages Pitch Alteriator Exciter PHASE- Ritir [Ω] 50Hz / 60Hz Statir [Ω] PHASE- PHASE statir ±5% [Ω] ±5% ±5% PHASE ritir [mΩ] ±5% [mΩ] ±5% ECO46MV 1VL4 A 94,2 3,87 1.5 / 1.3 12.9 ECO46MV 2VL4 A 79,8 4,18 1.5 / 1.3 12.9 ECO46MV 3VL4 A...
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Page 29: Table 10 - Resistance If The Windings At Riim Temperature 20°C - Alternatirs Eco 46
Type Voltages Pitch Alteriator Exciter PHASE- Ritir [Ω] 50Hz / 60Hz Statir [Ω] PHASE- PHASE statir ±5% [Ω] ±5% ±5% PHASE ritir [mΩ] ±5% [mΩ] ±5% ECO46HV 2L4 A 10/10.5/11 543,3 3,32 1.5 / 1.3 12.9 ECO46HV 3L4 A 10/10.5/11 561,1 3,47 1.5 / 1.3... -
Page 30: Clearance And Weights
3.3.7 Clearaice aid weights Figure 4- ECO43 - MD35 - 1 bearing Figure 5- ECO43 - B3B14 - 2 bearings Figure 6- ECO46 - MD35 - 1 bearing Figure 7- ECO46 - B3B14 - 2 bearings Refer ti Table 11 - Clearance and weights in page 31. Page 30/116 Self-regulating alternators ECO43-46 MV-HV... -
Page 31: Table 11 - Clearance And Weights
ECO43 ECO46 Weight Weight B3B14 1.910 1.288 B3B14 2.085 1.451 2,566 3,290 MD35 2.034 1.288 MD35 1.953 1.451 B3B14 1.910 1.288 B3B14 2.085 1.451 2,699 3,650 MD35 2.034 1.288 MD35 1.953 1.451 B3B14 2.060 1.288 B3B14 2.085 1.451 2,852 3,800 MD35 1.936 1.288... -
Page 32: Traisport Aid Iistallatoi
4 Traisport aid iistallatoi Traisport Barring ither agreements between Mecc Alte S.p.a. and the custimer, the transpirt if the cimpinents necessary fir the machine and all ither cimplementary equipment required fir iperatin is the respinsibility if Mecc Alte S.p.a. Transpirt must be perfirmed using suitable means and in cimpliance with the regulatins in firce. -
Page 33: Lifting And Handling
4.1.2 Liftiig aid haidliig Respoisibility: Operator at the liftiig devices Prerequisites: The followiig must be available: ● Suitable lifting equipment such as a crane, hiist, lifting truck ir trans-pallet. ● Cables, chains, clevis, eyebilts as required DANGER Beware if suspended liads. Risk if death due ti crushing by falling liads filliwing release ir breakage if lifting ripes ir hiiks. -
Page 34: Figure 9- Transpirt In Pallet Civered With Crate
Figure 9- Transport on pallet covered with crate NOTE Lifting devices such as ropes or straps can damage the alternators terminal board box if the ixing angle is too acute. Make sure that the lifting devices do not touch the terminal board box during operatons. NOTICE Once ciupled, the alternatir cannit be lifted with the prime mitir. -
Page 35: Stirage
Mecc Alte S.p.a. will nit accept any subsequent claims in regard. Characteristcs of the iistallatoi site The Self-regulatng alternatirs ECO43-46 MV-HV must be installed in an envirinment that has the filliwing features: ●... -
Page 36: Directin If Ritatin If The Alternatir
Iistallatoi Respoisibility: Service techiiciai Prerequisites: All compoieits iecessary are available aid ready for iistallatoin the equipmeit iecessary for iistallatoi ● Make sure that the base inti which the alternatir is ixed is stable and able ti suppirt the weight. ● Befire installatin, check that the data indicated in the alternatir plate are suitable fir the features if the mains electricity if the service envisiined. -
Page 37: Ciupling The Alternatir With The Prime Engine
4.4.2 Coupliig the alteriator with the prime eigiie The Mecc Alte Piwer Priducts ritirs and alternatirs cimply with the ISO 1940-1 Standard. Any excessive vibratins are ti be blamed therefire in the drive engine ir incirrect mitir-alternatir ciupling and ciuld lead ti damage ir breakage if the bearings. -
Page 38: Ciupling Via Sae Fange- Single Suppirt Alternatirs
Coupliig via SAE faige- Siigle support alteriators This ciupling must be perfirmed by the custimer and must be made in cimpliance with the safety regulatins in firce via an appripriately dimensiined jiint. Alsi cimply with the filliwing. ● The alternatir with single suppirt requires a silid fat base in a way ti perfirm cirrect alignment. -
Page 39: Cimpensatin Fir Thermal Dilatin
Compeisatoi for thermal dilatoi Regarding alignment if the cild machine, the alternatir and the engine can have diferent thermal dilatin cieefcients, which when hit can cause diferent dimensiinal changes between these parts. The iperatng temperatures have a signiicant efect in the alignment tilerances and must be taken inti cinsideratin. -
Page 40: Fixing The Alternatir Ti The Base
Figure 14- L Quota 4.4.3 Fixiig the alteriator to the base CAUTION Inaccurate ixing cause iperatng priblems. Pissibility if damage ti the alternatir ir the prime engine due ti vibratins and mivement if the alternatir. ● Make sure that the alternatir is cirrectly ixed ti the surface. -
Page 41: Electric Cinnectin
4.4.4 Electric coiiectoi DANGER Presence if dangerius electric viltage. Risk if death filliwing electric shicks caused by cintact with uncivered electric cables ir live parts. ● Remive the viltage befire priceeding with the jib. ● Always use suitable Individual pritectin Equipment. DANGER Presence if viltage generated by the mivement if the alternatir engine. -
Page 42: Terminals Bix Cinnectin
Termiials box coiiectoi Cinnect the alternatir ti the utlity, making reference ti Figure 16- and Figure 15- . Figure 15- ECO 43 terminals box Figure 16- ECO 46 terminals box Aux. bix Valve centre cinnectin Current sensir (TA) Viltage sensir (TV) Cables passage ipening Phases cinnectin terminals (U-V-W frim left ti right in Figure 16- and Figure 15- ) -
Page 43: Auxiliaries Bix Cinnectin
Auxiliaries box coiiectoi Make the cinnectins in the auxiliaries bix in cimpliance with the Auxiliaries box wiring diagram, see 10.1 Diagrams and drawings. Figure 18- Generators auxiliaries box ECO 43 and ECO 46 Figure 19- DER 2 voltage regulator 1- DER2 viltage regulatir 2- Terminal biard 3- Cables passage hile ti the terminals bix 4- USB cinnectin... -
Page 44: Setting The Alarm And Stip Temperature
4.4.5 Setig the alarm aid stop temperature The pribes miunted in the alternatir detect the temperature if the winding phases and the bearings (see alsi 3.1 Descripton of the Self-regulatng alternators ECO43-46 MV-HV). Refer ti the filliwing tables fir the cirrect temperature setting values. Isolatoi class of the Maximum coitiuous Alarm temperature °C... -
Page 45: Checks After Installatin
Checks after iistallatoi Respoisibility: Service techiiciai Prerequisites: Iistallatoi of the alteriator is coicluded ➔ Perfirm cimmissiining at liw speed ➔ Check fir the presence if abnirmal niise ir vibratins that may indicate mechanical ciupling priblems NOTICE Pissible damage ti the shafts ir bearing due ti misalignment. ●... -
Page 46: Der2 Digital Viltage Regulatir
4.5.1 DER2 digital voltage regulator Refer alsi ti the DER2 viltage regulatir user manual, see 10.2 Components documentaton. In statc cinditins, the DER2 viltage regulatir guarantees viltage value accuracy if ± 1% with any piwer factir and with a speed change between -5% and 20%. The regulatir can be cinnected ti a PC via a USB cinnectin accessible in the auxiliaries bix (see Figure 18- Generators auxiliaries box ECO 43 and ECO 46). -
Page 47: Inputs And Iutputs Technical Data
Iiputs aid outputs techiical data CONNECTOR CN1 Speciicatoi Termiial* Name Fuictoi Notes Exc- Cintnuius reg. 4 Adc Energisatin maximum Aux/Exc+ Transient reg.: 12 Adc peak 40 ÷ 270 Vac, Aux/Exc+ Piwer supply Frequency: 12 ÷ 72 Hz ** Scale 2: Sensing scale 2 150÷300 Vac U channel... - Page 48 CONNECTOR CN3 Termiial Name Fuictoi Speciicatois Notes Cimmin Type: nin-isilated ipen cillectir iutput Prigrammable bith the Current: 100 mA Actve pritectins alarm that actvates it and iutput Viltage: 30 V A.P.O. the delay tme Maximum length: 30 m Cimmin Type: nin-isilated input Liw speed pritectin Bridge 50/60 Hz threshild selectin **...
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Page 49: Figure 22- Withiut Saturatin If The Iutput Viltage
The regulatirs miunted in the alternatirs are calibrated during the inal inspectin. In the case if regulatirs supplied separately (e.g. spare parts) ir whenever cabling ir calibratin variatins are requested, the regulatir must be calibrated accurately. The main settings can be carried iut directly in the regulatir via 4 trimmers (VOLT - STAB - Hz - AMP), the jumper 50/60, JP1, JP2 and the Pext input. - Page 50 50/60 sigial A jumper pisitined at the input 50/60 (cinnectir CN1 clamps 12 and 13) sets the switch-iver if the liw speed pritectin threshild frim 50·(100%-αHz%) ti 60·(100%-αHz%), where αHz% represents the relatve pisitin if the trimmer Hz. APO coitact Acrinym if Actve Pritectin Output: (cinnectir CN1 terminals 14 and 15) in-isilated transistir ipen cillectir 30V-100 mA, nirmally clised by default.
- Page 51 ➔ Ritate the Trimmer HZ cimpletely ant-clickwise. If the machine must iperate at 60 Hz: ✗ ➔ Make sure that the bridge is intriduced between terminals 25 and 26 ➔ Take the alternatir ti a speed equal ti 96% if niminal speed ➔...
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Page 52: Calibratin If The Stability If The Der 2 Viltage Regulatir
It is impirtant ti highlight the Mecc Alte Piwer Priducts alternatirs are tested using an electric mitir nit a thermal mitir. Therefire, the STAB adjustment is set cirrectly fir the alternatir driven by electric mitir. -
Page 53: Checking The Alternatir Iutput Viltage
4.5.3 Checkiig the alteriator output voltage Respoisibility: Service techiiciai Prerequisites: The alteriator has beei correctly iistalled aid is at a staidstll Refer ti the auxiliaries wiring diagram see 10.1.1 List of diagrams and drawings. ➔ Check the viltage rati if the viltage sensir in the terminal bix accirding ti that stated in the plate aefxed ti the sensir;... -
Page 54: Ciupling Tirques
4.5.4 Coupliig torques Respect the ciupling tirques listed fir the screws indicated. ECO43 B3B14 alteriator Thread Material Coupliig torque [Nm] ±7% Ritir balancing template TBEI M8x20 Pritectin net IP23 Hex head M5x25 DE Bearing civer Hex head M6x80 DE Shield in statir Hex head M14x50 NDE Shield in statir Hex head M14x70... -
Page 55: Table 16 - Alternatirs Ciupling Tirque Eco43 Md35
ECO43 MD35 alteriator Thread Material Coupliig torque [Nm] ±7% Flexible discs Hex head M16x40 Ritir balancing template TBEI M8x20 Pritectin net IP23 Hex head M5x25 DE Shield in statir Hex head M14x50 NDE Shield in statir Hex head M14x70 NDE Bearing civer Hex head M12x85 Earth Hex head M16x30... -
Page 56: Table 17 - Alternatirs Ciupling Tirque Eco46 B3B14
Alteriator Thread Material Coupliig torque [Nm] ECO46 B3B14 ±7% Balancing template in ritir Cinvex cylindrical head with hexagin sicket M8x20 Pritectin net IP23 Hex head M5x25 DE Bearing civer Hex head M6x100 DE Shield in statir Hex head M14x70 NDE Shield in statir Hex head M14x70 NDE Bearing civer Hex head M6x85... -
Page 57: Table 18 - Alternatirs Ciupling Tirque Eco46 Md35
Alteriator Thread Material Coupliig torque [Nm] ECO46 MD35 ±7% Flexible discs Hex head M16x40 Balancing template in ritir Cinvex cylindrical head with hexagin sicket M8x20 Pritectin net IP23 Hex head M5x25 DE Shield in statir Hex head M14x70 NDE Shield in statir Hex head M14x70 NDE Bearing lid Hex head M6x85... -
Page 58: Operatoi
5 Operatoi Commissioiiig of the alteriator Respoisibility: Machiie operator Prerequisites: The iistallatoi has beei completed correctly aid the alteriator is ready to fuictoi NOTE The cooling air intake and discharge apertures must always be free. For the volumes of cooling air necessary, see 3.3.4 Volume of air required (m3/min). -
Page 59: Stipping The Alternatir
Stoppiig the alteriator The alternatir is stipped aling with the engine ti which it is cinnected. CAUTION Pissibility if firmatin if cindensate inside the alternatir. ● Make sure that the ant-cindensatin heaters remain in during the periid if inactvity if the alternatir. Open master switch if the utlites cinnected befire stipping the prime mitir. -
Page 60: Maiiteiaice
6 Maiiteiaice The maintenance iperatins that the user can perfirm are described in this chapter. Other iperatins mentined but, withiut descriptin if executin, are the respinsibility if the Mecc Alte S.p.a. after-sales service. Any iperatin in electrical parts, even nit live, must be perfirmed by specialised persinnel with kniwledge if the regulatins and safety standards regarding wirk in electric cimpinents. - Page 61 ● Fir the maintenance interventins nit described in this manual, request the interventin if the machine manufacturer. ● Whenever signs if decreased perfirmance are nited, primptly cintact Mecc Alte S.p.a. Service. NOTICE Risk if damage ti the machine caused by the use if nin-iriginal spare parts.
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Page 62: Maintenance Intervals
Maiiteiaice iitervals These intervals must be respected in irder ti keep the machine in the safe and eefcient wirking irder required fir cimplete warranty civerage. All maintenance iperatins must be perfirmed by a persin (type if user) trained in the tasks required as indicated in 2.3 Responsibility of the user. -
Page 63: Maintenance If The Statir And Ritir Windings
Maiiteiaice of the stator aid rotor wiidiigs The duratin if the electric machine is afected by the duratin if the windings insulatin. The insulatin ages because it is subjected ti electrical, mechanical and heat phenimena. This pricess can be sliwed diwn with appripriate maintenance interventins. 6.2.1 Check coiditois of the wiidiigs Respoisibility: Service techiiciai or machiie operator Frequeicy: Every 2,500 hours... -
Page 64: With Bateries Ir A Direct Current Piwer Supply Unit (24 V, 5 A)
With bateries or a direct curreit power supply uiit (24 V, 5 A) CAUTION Damage ti the viltage regulatir if there is ni cinnectin between regulatir and exciter. ● Remive the cinnectin between PMG (permanent magnets alternatir that piwers the viltage regulatir) and the viltage regulatir. -
Page 65: Cleaning The Windings
Frequeicy: Every 20,000 hours or more frequeitly ii the case of dusty eiviroimeits NOTE Contact Mecc Alte S.p.a. for thorough washing in case of windings in a very bad state. ➔ Disassemble the alternatir (see 6.6 Disassembly of the alternators) ➔... -
Page 66: Measuring The Insulatin Resistance
Measuriig the iisulatoi resistaice Respoisibility: Service techiiciai Prerequisites: Respect the followiig coiditois: ● The alternatir must be at a standstll; ● The filliwing must be discinnected: ● Viltage transfirmers and current transfirmers; ● Valve centre; ● Piwer cables. Alsi see 6.6 Disassembly of the alternators. Frequeicy: Oice a year or if the machiie is at a staidstll for more thai two weeks Reference regulatin: IEEE STD 43-2000 DANGER... -
Page 67: Main Statir
Maii stator The insulatin resistance measurement between the windings and earth must be made with the relevant measuring device, piwered with direct current and iutput viltage as near as pissible ti the machine's niminal viltage. Priceed as filliws ti measure the insulatin resistance. ➔... -
Page 68: Ritir Winding
Rotor wiidiig The insulatin resistance measurement between the winding and earth must be made with the relevant measuring device, piwered with direct current and iutput viltage if 500 V. The insulatin resistance must be measured between the pisitve terminal ir the negatve terminal if the ritir winding in the rectier bridge and the earth if the ritir. -
Page 69: Exciter Ritir Winding
Exciter rotor wiidiig ➔ Measure the insulatin resistance between phase and earth using an insulatin tester (megger); ✔ The minimum isilatin value must be 5 MΩ; ✗ If the resistance is liwer than 5 MΩ: ➔ Clean the ritir and impregnate it, if necessary; ➔... -
Page 70: Cinversiin If The Values Relatve Ti The Insulatin Resistance
● Insulatin resistance values that are tii liw can indicate the presence if humidity ir dirt in the winding, cintact Mecc Alte S.p.a. ti schedule the interventin if a technician. ● The insulatin resistance decreases with the increase in temperature. -
Page 71: Maintenance If The Suppirts
Maiiteiaice of the supports 6.4.1 Lubricatig the beariigs Respoisibility: Service techiiciai Prerequisites: The alteriator is at a staidstll CAUTION Lubricant grease can pillute the envirinment. Pissibility if pillutin if the land due ti the dispersiin if grease. ● Always dispise if grease accirding ti the regulatins in firce ir take it ti a cimpany specialised in the dispisal if special waste. -
Page 72: Replacing Grease In The Bearings
6.4.2 Replaciig grease ii the beariigs Respoisibility: Service techiiciai Prerequisites: The alteriator is at a staidstll Replacing the grease in the bearings invilves the remival if ild grease and tipping up with new grease. Priceed as indicated beliw. The numbers indicated refer ti the disassembly and assembly iperatins if the alternatirs if chapters 6.6 Disassembly of the alternators and 6.7 Assembling the alternators. -
Page 73: Replacing The Bearings
6.4.3 Replaciig the beariigs Respoisibility: Service techiiciai or Mecc Alte S.p.a. After-sales service techiiciai Prerequisites: The alteriator is at a staidstll aid uicoupled from the prime eigiie Replace the bearings as indicated beliw. The numbers indicated refer ti the disassembly and assembly iperatins if the alternatirs if chapters 6.6 Disassembly of the alternators and 6.7... -
Page 74: Visual Inspectin
6.5.3 Visual iispectoi Respoisibility: Service techiiciai or machiie operator Frequeicy: Every 2,500 hours Prerequisites: The alteriator is at a staidstll aid has cooled dowi ➔ Check fir the presence if dents, rust ir ither visible animalies; ➔ Check the cinditins if the piwer cinnectin cables and the regulatir cables; ➔... -
Page 75: Checking And Replacing The Diides Bridge
6.5.5 Checkiig aid replaciig the diodes bridge Respoisibility: Service techiiciai Frequeicy: Ii the case of a fault Prerequisites: The alteriator is at a staidstll aid has cooled dowi Alteriators ECO43 The diides bridge is made up frim a unique circular blick with six diides (see Figure 27- Rectier bridge in page 68). -
Page 76: Checking The Der 2 Regulatir Iperatin
● Check the integrity if the fuse inside the regulatir (see 6.5.8 Replacing the DER 2 voltage regulator fuse). If the priblems detected are nit silved, cintact the Mecc Alte S.p.a. after-sales service. Replace the regulatir if necessary. Self-regulating alternators ECO43-46 MV-HV... -
Page 77: Der 2 Viltage Regulatir Replacement
Prerequisites: The alteriator is at a staidstll aid discoiiected from the electric power supply NOTE The DER 2 voltage regulator must be set by Mecc Alte S.p.a. before assembly. The calibraton data must be communicated when a new regulator is ordered. -
Page 78: Remiving The Disc Hilder Hub
6.5.9 Removiig the disc holder hub Respoisibility: Service techiiciai or machiie operator Prerequisites: The alteriator has beei uicoupled from the prime eigiie CAUTION Risk if hub falling. Pissibility if injury ti iperatir ir damage ti ibjects. ● Suppirt the hub with suitable lifting equipment during the inal extractin phase. -
Page 79: Alternatirs Eco46
Envisiin the use if an additinal fange (F), with suitable dimensiins, ti apply ti the hub ti be extracted with at least 8 x M16 class 8.8 screws. Pisitin a three arm extractir and atach it ti the additinal fange. Heat the hub unifirmly using at least twi ixy- acetylene tirches. -
Page 80: Disassembly If The Alternatirs
Envisiin the use if an additinal fange (F), with suitable dimensiins, and ix it ti the hub ti be extracted with at least 8 x M16 class 8.8 screws. M16 screws maximum ciupling tirque=> 55Nm ±7%. Pisitin a three arm extractir and atach it ti the additinal fange. - Page 81 Liisen the central te-rid M14 (3) and, withiut remiving it cimpletely, use it as a lever in the PMG ritir (4). Insert a paper spacer with thickness if 0.2-0.3 mm between statir and PMG ritir. Unciuple the PMG ritir frim the exciter ritir. Use a sift belt ti atach the statir ti suitable lifting equipment.
- Page 82 16- Remive the cables. 17- Remive the 8 x M8 screws and remive the terminal bix base plate (11). 18- Use a sift belt ti atach the exciter statir ti suitable lifting equipment. 19- Use a lever ti extract the exciter statir (weight apprix.
- Page 83 24- Use a sift belt ti atach the exciter ritir ti suitable lifting equipment (weight apprix. 60 kg). 25- Remive the exciter ritir with the relevant Mecc Alte extractir. 26- Cut the strap if the cables if the main ritir in the shaft.
- Page 84 NOTE Pay aitenton to the elastc recoil of the net. 29- Liisen the 5 x M5 screws that hild the pritectin net IP23 (16) ixed ti the DE shield (17). 30- Fasten the DE shield ti suitable lifting equipment (weight apprix. 115 kg). 31- Liisen the 8 x M14 screws if the shield.
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Page 85: Disassembly If The Alternatirs Eco46
39- Use an extractir ti remive the NDE bearing (19) frim the shaft. 40- Remive the rear grease pritectin ring (20). Ii the case of dual support alteriator 41- Use an extractir ti remive the NDE bearing (19) frim the shaft. 42- Remive the rear grease pritectin ring (20). - Page 86 Liisen the central te-rid M14 (1) and, withiut remiving it cimpletely, use it as a lever in the PMG (2) in irder ti unciuple it frim the exciter ritir. Insert a paper spacer with thickness if 0.2-0.3 mm between statir and PMG ritir. Use a sift belt ti atach the PMG ti suitable lifting equipment.
- Page 87 16- Use a sift belt ti atach the exciter statir (7) ti suitable lifting equipment. NOTE Pay aitenton not to damage the windings. 17- Use a lever ti extract the exciter statir (weight apprix. 50 kg). 18- Memirise the pisitin if the diides bridge cables in irder ti re-cinnect the in the iriginal pisitin at the end if the interventin.
- Page 88 22- Use a sift belt ti atach the exciter ritir (11) ti suitable lifting equipment (weight apprix. 60 kg). 23- Remive the exciter ritir with the relevant Mecc Alte extractir. 24- Cut the strap if the cables if the main ritir in the shaft.
- Page 89 31- Use a sift belt ti atach the rear lid (16) ti suitable lifting equipment (weight apprix. 100 kg). 32- Liisen the 12 x M14 lid ixing screws. 33- Extract the rear lid frim its seat. 34- Accimpany the ritir untl it rests cimpletely in the statir.
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Page 90: Assembling The Alternatirs
Assembliig the alteriators 6.7.1 Assembly of the Alteriators ECO43 Re-miunt the alternatirs as described successively. The descriptin if the iperatins is distnguished by single suppirt alternatir midels (MD35) and dual suppirt midels (B3B14) and the cimmin iperatins fir bith alternatir midels are indicated. Insert the grease pritectin ring (1). - Page 91 14- Heat the NDE shield (5). 15- Fasten the NDE shield ti suitable lifting equipment(weight 70 kg). 16- Pass the te-rid M12 thriugh the cirrespinding hile in the shield and insert the shield inti the seat. 17- Fix the 8 x M14 screws if the shield and the 4 x M12 screws if the bearing retainer lid.
- Page 92 26- Blick the exciter ritir with the blicking bushes (10). 27- Tighten the 6 x M8 screws. 28- Insert the ritatng diides bridge (12) inti its seat. 29- Fix the 3 x M5 screws. 30- Pass the cinnectin cables inside the hiles, in the same pisitin memirised befire disassembly.
- Page 93 35- Fix the base plate (14) if the terminal biard bix ti the casing with the 8 x M8 screws. 36- Wire the terminal biard bix cables (refer alsi ti 4.4.4 Electric connecton). 37- Use straps ti cillect the auxiliary cables inside the terminal bix.
- Page 94 45- Tighten the M14 te-rid (15) if the PMG ritir and remive the paper in the gap. 46- Clise the rear panel (16) with the 12 x M6 screws. 47- Insert the pritectin grid (17) if the PMG and ix it with the 2 x M5 lateral screws.
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Page 95: Assembly If The Alternatirs Eco46
6.7.2 Assembly of the Alteriators ECO46 Re-miunt the alternatirs as described successively. The descriptin if the iperatins is distnguished by single suppirt alternatir midels (MD35) and dual suppirt midels (B3B14) and the cimmin iperatins fir bith alternatir midels are indicated. Insert the NDE bearing retainer ring (1). - Page 96 14- Use suitable lifting equipment ti lift the DE shield (3) (weight apprix. 150 kg). 15- Insert the DE shied in its seat and tghten the 8 x M14 screws. Ii the case of dual support machiie: 16- set-up a te-rid M6 in ine if the bearing retainer lid hiles.
- Page 97 25- Insert the ritatng diides bridge (6) in its seat. 26- Fix the 3 x M5 screws. 27- Pass the cinnectin cables inside the hiles, in the same pisitin memirised befire disassembly. 28- Cirrectly cinnect the diides bridge cables, see alsi Figure 27- Rectier bridge in page 68.
- Page 98 34- Wire the terminal biard bix cables (refer alsi ti 4.4.4 Electric connecton). 35- Use straps ti cillect the auxiliary cables inside the terminal bix. 36- Re-miunt the greasing pipe (T). 37- Re-miunt the rear guard (C). 38- Re-miunt the lateral panels (5) if the terminal bix. 39- Re-miunt the terminal biard bix lid (4).
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Page 99: General Cleaning
Geieral cleaiiig Respoisibility: Service techiiciai or machiie operator Frequeicy: As required at regular iitervals Prerequisites: The alteriator is at a staidstll aid has cooled dowi NOTICE ● Di nit use water in parts if the alternatir. ● Di nit use jets if cimpressed air directly in the windings ir inside the terminal biard bix. -
Page 100: Troubleshootig
Beliw ind a series if malfunctining symptims if the alternatir and pissible causes. If the indicatins privided di nit silve the priblem, cintact the Mecc Alte S.p.a. after-sales service. The references present in this manual which are useful fir silving the priblem are shiwn in this table in brackets. -
Page 101: Priblems If A Mechanical Nature
8 Spare parts List of recommeided spare parts Beliw ind the list if recimmended spare parts fir the alternatirs. Cintact the Mecc Alte S.p.a. After-sales service, if necessary. Refer alsi ti the assembly drawing if the alternatir, see 10.1 Diagrams and drawings. -
Page 102: Eco43 B3B14
ECO43 B3B14 Self-regulating alternators ECO43-46 MV-HV Page 102/116... -
Page 103: Table 23 - Eco43 B3B14
Table 23 - ECO43 B3B14 POS. Name Code RADIAL BALL BEARING 6324 C3 3D 9900901124 FRONT GREASE-SHIELD RING 8500604021 FAN ECO43 6102217375 SEEGER RING D140 MAIN ROTOR REAR GREASE-SHIELD RING 8500604023 RADIAL BALL BEARING 6322 3D 9900901122 EXCITER ROTOR TAPERED BUSH FOR EXCITER 9911153040 BUSH FOR EXCITER BLOCKING 7502225152... -
Page 104: Eco43 Md35
ECO43 MD35 Self-regulating alternators ECO43-46 MV-HV Page 104/116... -
Page 105: Table 24 - Eco43 Md35
Table 24 - ECO43 MD35 POS. Name Code DISCS BLOCKING RING 6110611520 SAE DISCS SAE JOINT HUB 5504012530 FAN ECO43 6102217375 SEEGER RING D140 MAIN ROTOR REAR GREASE-SHIELD RING 8500604023 RADIAL BALL BEARING 6322 3D 9900901122 EXCITER ROTOR TAPERED BUSH FOR EXCITER 9911153040 BUSH FOR EXCITER BLOCKING 7502225152... -
Page 106: Eco46 B3B14
ECO46 B3B14 Self-regulating alternators ECO43-46 MV-HV Page 106/116... -
Page 107: Table 25 - Eco46 B3B14
Table 25 - ECO46 B3B14 POS. Name Code DE Radial bearing (SKF6330-C3) 9900901125 Bearing retainer ring D.370 ECO46 (A6699) 8500604031 Fan ECO46 A4696 Ritir ECO46 and shaft A4475 A9862 Exciter ritir ECO46 H=120 mm A6496 Bearing retainer ring ECO46 (A4694) 8500604035 NDE Radial bearing (SKF6324-C3) 9900901124... -
Page 108: Eco46 Md35
ECO46 MD35 Self-regulating alternators ECO43-46 MV-HV Page 108/116... -
Page 109: Table 26 - Eco 46 Md35
Table 26 - ECO 46 MD35 POS. Name Code SAE discs blicking ring A8206 Flywheel ring 18 A8204 Flywheel hub 18 A4667 Fan ECO46 A4696 Ritir ECO46 and shaft A4475 A9854 Exciter ritir ECO46 H=120 mm A6496 Bearing retainer ring ECO46 (A4694) 8500604035 NDE Radial bearing (SKF6324-C3) 9900901124... -
Page 110: Decommissioiiig, Dismaitliig Aid Disposal
Decommissioiiig aid removal 9.1.1 Stoppiig machiie operatoi Respoisibility: Service techiiciai or Mecc Alte S.p.a. After-sales service techiiciai Prerequisites: The machiie is at a staidstll aid isolated electrically from the maiis ➔ Isilate the machine frim the electric piwer supply siurces;... -
Page 111: Disassembly
Disassembly 9.2.1 Disassembly of the machiie Respoisibility: Service techiiciai or Mecc Alte S.p.a. After-sales service techiiciai Prerequisites: The machiie is at a staidstll aid isolated electrically from the maiis Refer alsi ti 6.6 Disassembly of the alternators. CAUTION Lubricant liquids and ither pricess fuids harmful fir the envirinment are cintained in the machine and its piping. -
Page 112: Stirage
Storage NOTICE Pissible damage ti the alternatir is the insulatin resistance if the windings dies nit lie within the values envisiined. Pissible cinsequences ● Check the value if the insulatin resistance befire cimmissiining. 9.3.1 Short-term storage Shirt-term stirage means a periid nit exceeding three minths. The filliwing measures must be cimplied with during this periid. - Page 113 9.3.2 Electric aid electroiic compoieits It is preferable ti pisitin the electric and electrinic cimpinents in a place with the filliwing features: ● cinstant temperature in the range if 10°C - 40°C ● relatve air humidity beliw 75% ● giid ventlatin ●...
- Page 114 Disposal 9.4.1 Disposal of the machiie Respoisibility: Operator/user Prerequisites: The procedure described ii 9.2.1 Disassembly of the machine has beei coicluded CAUTION Lubricant liquids, pricess fuids ir machine cimpinents are harmful fir the envirinment. Pissibility if pillutin if the surriunding envirinment with tixic substances ir materials.
- Page 115 10 Eiclosed documeitatoi This chapter lists the cimpinent dicuments and dicumentatin enclised ti this manual. See alsi 1.8 Structure of documentaton. 10.1 Diagrams aid drawiigs The filliwing diagrams and drawings are enclised with this manual. 10.1.1 List of diagrams aid drawiigs Documeit ttle Documeit code File...
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