motor and generator series

COMCATMAR001_B Ed. 11/2020

Motor and Generator SeriesProduct catalogue

Marine

marellimotori.com

3COMCATMAR001_B Ed. 11/2020

INDUSTRY STANDARDS

MOTOR RANGE

TEWAC motors: B4V - B5V - B5VH - B4VH

ODP motors: Low voltage C3M - C4M - C5M - C3W - C4W - C5W

ODP motors: Medium Voltage C3MH - C4MH - C5MH - C4MH - C4WH - C5WH

TEWC motors: B4J - B5J -B4JH - B5JH

TEFC motors: A5M - B5M - B5MH

GENERATOR RANGE

TEWAC generators: MJHRM

TEWAC generators: MJRM

TEAAC generators: MJVM

ODP generators: MJHM

ODP generators: MXB-EM

ODP generators: MJBM

AVR SELECTION TABLE

INDEX

04

07

08

11

11

14

17

20

22

27

32

36

41

44

49

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First number Second number

2 Machine protected against solid objects greater than 12 mm 2 Dripping water shall have no harmful effect from the vertical up to an angle up to 15°

3 Machine protected against solid objects greater than 2,5 mm 3 Spraying water shall have no harmful effect from the vertical up to an angle up to 60°

4 Machine protected against solid objects greater than 1 mm 4 Splashing water from any direction shall have no harmful effect

5 Machine protected against cust 5 Jets of water from any direction shall have no harmful effect

6 Machine totally protected against tight dust 6 Jets of water from heavy seas from any direction shall have no harmful effect

Industry standards

IP Code - Degree of protection (IEC - 60034 - 5)

Typical circuit arrangements

0 Free circulation

4 Machine surface - cooled

6 Heat exchanger machine mounted (using the motor surrounding coolant)

7 Heat exchanger built in the machine (not using the motor surrounding coolant)

8 Heat exchanger machine mounted (not using the motor surrounding coolant)

Typical methods of circulation

0 Free circulation

1 Self circulation

6 Circulation with independent device

Typical fluids

A Air

W Water

Example of designation - IP 44

IP Code IP

4 First number (protection against dust)

4 Second number (protection against liquid)

Example of designation - IC 411

IC Code IC

4 Circuit arrangement

A Primary fluid

1 Method of circulation for primary fluid

A Secondary fluid

1 Method of circulation for secondary fluid

IC Code - Cooling (IEC - 60034 - 6)

5

IEC - 60034 - 7

IM B3

Code II: N° of bearings: Feet:Flange:Details:Mounting arrangement:

IM 10012With feet--Mounting by feet (Feet down)

IM B34

Code II: N° of bearings: Feet:Flange:Details:

Mounting arrangement:

IM 21012With feetWith flangeEnd Shield spigot No access to backFlange at D - End

Mounting by feet (Feet down with additional mounting on D - End Side of flange)

IM B35

Code II: N° of bearings: Feet:Flange:Details:

Mounting arrangement:

IM 21012With feetWith flangeEnd Shield spigot No access to backFlange at D - End

Mounting by feet (Feet down with additional mounting on D - End Side of flange)

IM B20


IM 11012With raised feet--Mounting by feet (Feet down)

IM B2


IM 21051With feetWith flange--

Mounting

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IEC - 60034 - 7

IM V10


IM 14112-With flangeSpecial flange on D - End.Mounted on D -End Side of flange, D - End down

B5


IM 30012-With flangeEndshield flange at D - End with access to backMounted on D -End Side of flange

V1


IM 30112-With flangeEndshield flange at D - End with access to backMounted on D -End Side of flange D - End down

IM B16


IM 13011With raised feet-Horizontal shaft - One bearing-

7

ODPC_M C_MH C_W C_WHup to 10.000 kW

TEFCA5M B5M B5MHup to 1.900 kW



TEWACB4V B4VHup to 10.000 kW


TEWCB4J - B4JH B5J - B5JHup to 4.000 kW

TEWCB4J - B4JH B5J - B5JHup to 4.000 kW

TEWCB4J - B4JH - B5J - B5JHup to 4.000 kW

Motor range

PROPULSION

DREDGE PUMPS

PTO - PTISYSTEM

AUXILIARIES

THRUSTERS

FI - FISYSTEM

WINCH

Key

ODP Open Drip Proof

TEWAC Totally Enclosed Water to Air Cooled

TEWC Totally Enclosed Water Cooled

TEFC Totally Enclosed Fan Cooled


Our motors are suitable for the following applications:





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ModelLV B4V B5V

MV B4VH B4VH

Output Up to 10.000 kW

Voltages Up to 15.000 V

Frame 355 ÷ 1.000

Pole 4, 6, 8 and 10

Cooling IC 81W (IC 86W, IC 611, IC 616, IC 666 on request)

IP

B4V B4VH IP 44,54,55,56

B5V B5VH

IP 55 (IP 23, IP 44 with filters, IP 24W NEMA, IP56 on request)

Main applications

Propulsion, dredge pumps, winch, hybrid machine, PTO-PTI system

Other applications

Thrusters, Fi-Fi system, auxiliaries

Typical output 4 POLES 6 POLES 8 POLES 10 POLES

kW 50 Hz

B4V B4VH 5000 5600 5000 4000

B5V B5VH 3.340 3.330 2.900 1.200

kW 60 Hz

B4V B4VH 5600 6400 5700 4600

B5V B5VH 4.000 4.000 3.500 1.440

Certificates and testing

Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification So-ciety.

Certificate

Test and survey

TEWAC MOTORS: B4V - B5V - B4VH - B5VH

9

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength. Marelli Motori motors for continuous duty operation are designed to meet vibration levels as per IEC 60034-14.

Shaft designCylindrical shaft with key.

Mounted on side (right or left to be selected).Made of steels EN 10130.

Construction• mounted on top of the machine • double tube made of CuNi 90/10• copper fins housing• equipped with water leakage detector • certified by registers of shipping in compliance with Rules for Classification of Ship• coolant can be both fresh or sea water• suitable to be treated with corrosion inhibitors, PH regulators and anti freeze as ap-

propriate to site conditions.

Exchanger data• designed pressure 6 bar• test pressure 10 bar• max glycol: 30%• type of water: fresh water or marine (salt) water• flanges: PN6 – PN10 – Special (ANSI).

B4V B4VH Made of grey cast-iron (EN 1561 – GJL 200) up to 500 frame size motors. Made of hot-rolled structural steel (EN 10025 – S235 JR) from size 560 and above.

B5V B5VH Made of hot-rolled structural steel (EN 10025 – S235 JR).

Housing

Shield

Shaft

Internal fan

Heat Exchanger

Main terminal box

Main components

Cooling system

Degree of protection

Mounting

Construction

IC 81W as per IEC 60034-6. Primary fluid (water) is flowing by external water system. Internal air is flowing by a fan mounted on the shaft of the generator at the driven side.

IP 55 as per IEC 60034-5. (Available up to IP 56)

IM B3 and V1 as per IEC 60034-7

TEWAC – Totally Enclosed Water to Air CooledEnclosure

General data

B4V B4VH Made in carbon steel (EN 10083 – 2 C40 – TN) up to 450 frame and hot-rolled structural steel from 500 frame (EN 10025 – S355 JR).

B5V B5VH Made in carbon steel (EN 10083 – 2 C40 – TN)

B4V B4VH Made of aluminum alloy up to 400 frame.Made of hot-rolled structural steel above (EN 10025 – S235 JR).

B5V B5VH Made of hot-rolled structural steel (EN 10025 – S235 JR).

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Bearing

Insulation system

Protective treatments

Optional features

General data

Antifriction bearings grease lubricated (ball or roller type) or oil lubricated sleeve bearing.

The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours.

Locating bearings are on the D end side and floating bearings on the ND end side.

Both bearings are fitted with a regreasing system.

The used grease is removed through a valve locked in the outer bearing cover. Sleeve bearings available as an option.

On request special bearings are designed where high radial and axial forces are applied. All configurations are designed to withstand the following marine inclination

Stator is treated with an unsaturated polyester amide resin which is polymerisation in oven.

Stator: F class insulated with a synthetic enamel.(H class insulation available on request)

Dedicated protective enamel is applied on the winding.

• Dual/multiple winding configuration• flanged shaft or special shaft end on both sides• increase protection degree up to IP 56• encoder• vibration sensors• special frame design to suite the application• special bearings (sleeve or angular contact bearings)• reinforced winding for VFD operation• insulated bearings design for VFD application• shaft earth brush for VFD application• other options available on request.

Technical data

Stator/Rotor core

Rotor

Laminated and enamel-insulated on both sides to minimise eddycurrent losses. The stator winding is made of flat copper or round copper wire depending on the machine size.The completely wound stator pack is thereby impregnated in an polyester VPI. The subsequent heat treatment hardens the resin.

Squirrel cage rotor type.Depending on machine size, the rotor construction is either a solid shaft or welded rib-bed shaft. The rotor winding can be either a pressure die cast aluminum or a copper bar construction.

Static Dynamic

List 15° Rolling ±22.5°

Trim 5° Pitch ±7.5°

Dedicated construction available for defferente values.

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Model

Low voltage C3M - C4M - C5MC3W - C4W - C5WMedium voltageC3MH - C4MH - C5MHC3MH - C4WH - C5WH


Voltages Up to 15.000 kV

Frame 315 ÷ 1000

Poles 4, 6, 8, 10 and 12

Cooling IC 01 / IC 06

IP IP 23 / IP 44

Main applications

Thrusters, Fi-Fi

Other applications

Small Propulsion


Certificate Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Test and survey


kW (at 60 Hz) 7.000 10.000 9.000 7.500

ODP MOTORS: C_M - C_MH - C_W - C_WH


Main components

Housing

Shield

Shaft

Internal fan

Main terminal box

Enclosure

Cooling system


Mounting

Construction

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Motori motors for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

Made of grey cast-iron (EN 1561 – GJL 200) up to 500 frame size motors. Made of hot-rolled structural steel (EN 10025 – S235 JR) from size 560 and above.

General dataMade in carbon steel (EN 10083 – 2 C40 – TN) up to 450 frame and hot-rolled structural steel from 500 frame (EN 10025 – S355 JR).


Mounted on top.Made of cold-rolled formable steels EN 10025 – S235JR.

Made of aluminum alloy up to 400 frame.Made of hot-rolled structural steel above (EN 10025 – S235 JR).

ODP – Open Drip Proof Motors.

IC 01 as per IEC60034-6Free circulation.Internal air is flowing by a fan mounted on the shaft of the motor at the driven side.The cooling air is taken on the ND-end, the air outlet is on the D-end.On request for variable speed application an external ventilation unit can be supplied to get the IC 06 cooling type.

IP 23 as per IEC60034-5.The series can be supplied with air inlet filters to achieve the IP 44 rating. The motor series name will be C3W - C4W.

IM B3, V1 and V10 as per IEC 60034-7.

13

Static Dynamic



Technical data

Laminated and enamel-insulated on both sides to minimise eddy-current losses. The stator winding is made of flat copper or round copper wire depending on the machine size. The completely wound stator pack with housing is thereby impregnated in an epoxy-resin VPI. The subsequent heat treatment hardens the resin.

Short circuit rotor type. Depending on machine size, the rotor construction is either a solid shaft or welded ribbed shaft.The rotor winding can be either a pressure die cast aluminum or a copper bar construc-tion.

General dataAntifriction bearings grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D end side and floating bearings on the ND end side.Both bearings are fitted with a regreasing system.The used grease is removed through a valve locked in the outer bearing cover. Sleeve bearings available as an option.On request special bearings are designed where high radial and axial forces are applied. All configurations are designed to withstand the following marine inclination.

Dedicated constructions available for different values

Stator and rotor are VPI treated with an unsaturated polyester amide resin which is polymerised in an oven.

Low voltage.Stator: F class insulated with a synthetic enamel.(H class insulation available on request)

Marine dedicated protective enamel is applied on the winding.

Stator/Rotor core

Rotor

Bearing

Insulation system

Impregnation system


Optional features

• Dual/multiple winding configuration • flanged shaft or special shaft end on both sides• increase protection degree up to IP 56• encoder• vibration sensors• special frame design to suite the application• special bearings (sleeve or angular contact bearings)• reinforced winding for VFD operation• insulated bearings design for VFD application• shaft earth brush for VFD application• other options available on request.


Model LV B4J - B5J

Model MV B4JH - B5JH


Voltages B4J - B5J Up to 690 V B4JH - B5JH Up to 6.600 V

Frame 355 ÷ 630

Poles 4, 6, 8 and 10

Cooling IC 71W

IP IP 55 / IP 56

Main applications

Propulsion, thruster, dredge pump, hybrid machine, PTO-PTI system

Other applications

Fi - Fi system


Certificate Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.Motors are ABS, RRR and DNV type approved.

Test and survey

Typical output 4 POLES 6 POLES 8 POLES

kW

(at 60 Hz)4.000 3.800 2.900

TEWC MOTORS: B4J - B5J - B4JH - B5JH

15

Main components

Housing

Shield

Shaft

Internal fan

Heat Exchanger

Main terminal box

Enclosure

Cooling system


Mounting

Construction

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Motori motors for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

Made of grey cast-iron (EN 1561 – GJL 200) up to 500 frame size motors.Made of hot-rolled structural steel (EN 10025 – S235 JR) from size 560 and above.

General dataMade in carbon steel (EN 10083 – 2 C40 – TN) up to 450 frame and hot-rolled structural steel from 500 frame (EN 10025 – S355 JR).

Shaft designCylindrical shaft with key

Mounted on top or side (with vertical mounting) and made in cast iron or cold rolled for-mable steels depending from size.

Made of aluminium alloy for 450 and 500 frame size.Made of hot-rolled structural steel from frame size 560 and above (EN 10025 – S235 JR).

General dataHeat exchanger is part of the housing and built on the machine. The material of the frame is carbon steel according to the standard EN 10025-S275JR. Equipped with water leakage detector as standard.

Exchanger dataWorking pressure < 6 barTest pressure 9 barMax glycol : 20%Coolant : fresh water only

TEWC – Totally Enclosed Water Cooled

IC 71W as per IEC 60034-6.7: Heat exchanger. The primary coolant is circulated in a closed circuit which is built as integral part of the machine.1: Self-circulation. The coolant is moved by a fan mechanically driven by the rotor.W: Coolant. Cooling water must be clean water.

IP 55 as per IEC 60034-5.

IM B3, V1 and V10 as per IEC 60034-7.


Static Dynamic



Technical data


Squirrel cage rotor type. Depending on machine size, the rotor construction is either a solid shaft or welded ribbed shaft.The rotor winding can be either a pressure die cast aluminum or a copper bar construction.

General dataAntifriction bearings grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D end side and floating bearings on the ND end side.Both bearings are fitted with a regreasing system.The used grease is removed through a valve locked in the outer bearing cover. Sleeve bearings available as an option.On request special bearings are designed where high radial and axial forces are applied. All configurations are designed to withstand the following marine inclination.

Dedicated constructions available for different values.


Low voltageStator: F class insulated with a synthetic enamel.(H class insulation available on request)


Stator/Rotor core

Rotor

Bearing

Insulation system

Impregnation system


Optional features

• Dual/multiple winding configuration • flanged shaft or special shaft end on both sides• increase protection degree up to IP 56• encoder• vibration sensors• special frame design to suite the application• special bearings (sleeve or angular contact bearings)• reinforced winding for VFD operation• insulated bearings design for VFD application• shaft earth brush for VFD application• other options available on request.

17

Model A5M - B5M - B5MH



Frame 71 ÷ 500

Poles 2, 4, 6 and 8

Cooling IC 411 ( or IC 416)

IP IP 55/ IP 56/ IP 65

Main applications Auxiliaries, Fi-Fi system

Other applications Winch


kW

(at 60 Hz)1.000 1.900 1.500 1.000


Certificate Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.Motors are ABS, RRR and DNV type approved.

Test and survey

TEFC MOTORS: A5M - B5M - B5MH


Main components

Motors from size 71 to 132 are made in cast iron. Motors from size 160 to 280 are made or in cast iron or in aluminium. Starting from frame 315 and up to 500 the frame is in cast iron only. (EN 1561-GJL – 200)

Made of grey cast-iron (EN 1561 – GJL 200) up to 500 frame size motors.

General data Made in carbon steel (EN 10083 – 2 C40 – TN) up to 500 frame


Mounted on top and made of cold-rolled formable steels EN 10025 – S235JR or cast iron depending from size.

Made of aluminum alloy up to 500 frame.

TEFC MOTORS – Totally Enclosed Eater Cooled

IC 411 as per IEC 60034-6Totally enclosed standard motor, frame surface cooled with fan4: Frame surface cooled1: Self circulation of primary coolant1: Self circulation of secondary coolant

On request for variable speed application an external ventilation unit can be supplied to get the IC 416 cooling type.

IP 55 as per IEC 60034-5

IM B3 and V1 per IEC 60034-7

Housing

Shield

Shaft

Fan

Main terminal box

Enclosure

Cooling system


Mounting

Construction

19

Technical data


Short circuit rotor type.Depending on machine size, the rotor construction is either asolid shaft or welded ribbed shaft.The rotor winding can be either a pressure die cast aluminum or a copper bar construc-tion.

General dataAntifriction bearings grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D end side and floating bearings on the ND end side.Both bearings are fitted with a regreasing system.The used grease is removed through a valve locked in the outer bearing cover. Sleeve bearings available as an option.On request special bearings are designed where high radial and axial forces are applied.



Low voltageStator: F class insulated with a synthetic enamel.(H class insulation available on request)


Stator/Rotor core

Rotor

Bearing

Insulation system

Impregnation system


Optional features

Static Dynamic



• Dual/multiple winding configuration • flanged shaft or special shaft end on both sides• increase protection degree up to IP 56• encoder• vibration sensors• special frame design to suite the application• special bearings (sleeve or angular contact bearings)• reinforced winding for VFD operation• insulated bearings design for VFD application• shaft earth brush for VFD application • other options available on request.

21

TEWACMJHRMup to 11.000 kVA

TEWACMJHRMup to 11.000 kVA

TEWACMJRMup to 6.500 kVA

TEWACMJRMup to 6.500 kVA

ODPMJHMup to 12.500 kVA

ODPMJHMup to 12.500 kVA

ODPMXB-EM / MJBMup to 6.500 kVA


Generator range

Key

TEFC Totally Enclosed Fan Cooled

TEAAC Totally Enclosed Air to Air Cooled

ODP Open Drip Proof

TEWAC Totally Enclosed Water to Air Cooled

TEWC Totally Enclosed Water Cooled

TEAACMJVMup to 5.600 kVA

EMERGENCY

PROPULSIONGENERATORS

SHAFTGENERATORS

AUXILIARYGENERATORS

HYBRID MACHINES

OFFSHORE

VARIABLESPEED

GENERATORS


TEAACMJVMup to 5.600 kVA

Our generators are suitable for the following applications:


Model MJHRM

Output Up to 11.000 kVA


Frame 400 ÷ 1.250

Poles 4, 6, 8, 10 and 12 (over contact MM)

Cooling IC 81W

IP IP 44. Available up to IP 56.

Main applications

Propulsion generator, shaft generator, hybrid machine, auxiliary generator, off-shore and variable speed gene-rator.

Certificate


Test and survey

Typical output 4 POLES 6 POLES 8 POLES 10 POLES 12 POLES

kVA(at 60 Hz) 10.000 9.000 11.000 11.000 10.000

Generators are designed in compliance with: IEC 60034 - 1BS 4999 - 5000VDE 0530NF 51 - 100NF 51 - 111OVE M - 10NEMA MG 1.32Generators conform to EU rules.UL/CSA certifications available on request.

Marine Survey Certificate supplied with the machine.Marelli Motori has the ABS design assessment.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Applicable standards

TEWAC GENERATORS: MJHRM

23

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Motori generators for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

TEWAC - Totally Enclosed Water to Air Cooled.

Made of spheroidal graphite cast-iron (EN 1563) or grey cast-iron (EN 1561) up to 630 frame size.Made of structural steel (EN 10025 – S235 JR) above.

General dataMade in carbon steel and obtained by lamination (EN 10083–2 C40–TN). Shaft is obtained by forging from 290 mm diameter and above. The shaft is tested at the manufacturer in order to check it is defect-free.

Mounted on side (right or left will be selected). Made of formable steels EN 10130.

Made of aluminum alloy (EN 1706) or structural steel (EN 10025 – S235 JR) depending upon application requirements.

Shaft designDouble bearing generator: cylindrical shaft with key.

Housing

Enclosure

Shield

Cooling system

Shaft

Fan

Main terminal box

Main components


Mounting

Construction

ConstructionMounted on top of alternator. Double tube made of CuNi 90/10.Copper fins housing.Equipped with water leakage detector.

Exchanger data• Designed pressure 6 bar• test pressure 10 bar • power: up to 200 kW • water flow: up to 18 m3/h • max glycol: 30%• type of water: fresh water or marine (salt) water• flanges: PN6 – PN10 – Special (ANSI) Position can be adjusted to site conditions.

Heat Exchanger

IC 81W as per IE C60034-6. Primary fluid (water) is flowing by external water system. Internal air is flowing by a fan mounted on the shaft of the generator at the driven side.


Horizontal - IM 1001 or IM 1101 as per IEC 60034-7


Laminated and enamel-insulated on both sides to minimise eddy-current losses.

Salient pole type.Made by copper flat wire.H class insulated with enamel coating.Winding retaining by pass-through bars of high quality steel.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced with a half key applied to the shaft extension in accor-dance with IEC 60034-14 to vibration grade normal A. Special vibration level construction is available.

General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D-End side and floating bearings on the N-End side.

Bearing selection Antifriction bearings up to 560 frame size included. Sleeve bearings from 630 frame size included (available for smaller frame sizes)Antifriction bearings can be mounted on 630/710 frame size according to site working conditions.

Regreasing system (for antifriction bearing)Both bearings are fitted with grease nipple.

Bearing insulationND end bearing can be insulated to prevent any harmful circulating current from passing through the bearing surfaces. Insulated antifriction bearings in standard configuration:• 4, 6 poles: insulated N-End bearing from 630 frame size• 8 poles: insulated bearing from 400 frame size• 10 poles: insulated bearing from 500 frame size

All ND end sleeve bearings are insulated as standard. All configurations are designed to withstand the following marine inclination.

Stator: F class insulated with a synthetic enamel.Rotor: H class insulated with a synthetic enamel.


Specific marine treatment.Epoxivinilic and polyacrylic. Total minimum thickness 120 micromillimeters.Epoxivinilic: Epoxy two component products, with vinyl change.Polyacrylic: Two components polyurethane product formulated with unmodified hydroxyl acrylic resin.

Technical data

Stator/Rotor core

Rotor

Bearing

Insulation system

Impregnation system



Static Dynamic



25

During continuous duty (S1), the following overloads are allowed: 10% for 1 hour 15% for 10 minutes30% for 4 minutes50% for 2 minutesThese overloads must be occasional and followed by one hour of running at normal load or less.

All generators are provided with an amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit. A power fac-tor regulator (to work in parallel with the main) is available on request.

All generators comply with marine rules regarding transient performance. The voltage drop due to the application of 60% of nominal load is within 15%.

All generators equipped with an overboosting device ensure a three phase short circuit current (Icc) higher than three times the rated current (In): Icc > 300% In

All generators are equipped with Class B Group 1 radio interference filters as defined by EN 55011.

The no-load voltage wave form is sinusoidal with THD content less than 2%.

Vibration level is in accordance with ISO 10816. Measurement, evaluation and limits of vibration severity are in accordance with IEC 60034-14.

Overloads

Parallel operations

Transient ratings

Three phase short circuit current

Radio interference

THD (Total Harmonic Distortion)

Vibrations

Operating conditions


Size Power (W)

400 - 560 400

630 - 710 600

800 - 900 800

1.000 1.000

1.120 1.200

1.250 1.400

Auxiliary device

Heaters installed at N-End side.

Space heaters

RTD - PT100 RTD devices in standard configuration:• 1 RTD on each phase of stator winding • 1 RTD on each bearing (≥630 frame size)Terminals in auxiliary terminal box.Other configurations available:

• DUPLEX type• RTD for inlet / outlet air • RTD for inlet / outlet water

• Reinforced construction for high linear vibrations• flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)• neutral point terminals in separate terminal box • terminal box inside air duct (internal terminal box)• cooling system IC 86W with additional forced ventilation• cooler mounted on side• increase protection degree up to IP 54, IP 55 or IP 56• lifted feet to couple the generator with engine on existing baseframe• redundant rotating rectifier with 12 diodes• insulated bearing and earthing brush• AVR supplied loose• automatic power factor control (analog type)• digital AVR D-Vo for frame 400 – 800 (supplied loose) ( ≤6900V)• redundant AVR system• excitation/overboosting PMG mounted on generator( ≤6900V)• lubrication system for sleeve bearing• other options available on request.

Optional features

27

Model MJRM



Frame 250 ÷ 900


Cooling IC 81W/ IC 86W

IP IP 44. Available up to IP 56.

Main applications

Propulsion generator, shaft generator, hybrid machine, auxiliary generator, off-shore and variable speed generator.

Marine Survey Certificate supplied with the machine.Marelli Motori is DNV type approved and has the ABS design assessment. Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Certificate

Test and survey


kVA

(at 60 Hz)4.000 5.000 6.500 6.000 5.400


Generators are designed in compliance with: IEC 60034 - 1BS 4999 - 5000VDE 0530NF 51 - 100NF 51 - 111OVE M - 10NEMA MG 1.32All generators conform to EU rules.UL/CSA certifications available on request.


TEWAC GENERATORS: MJRM


Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Motori generators for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

TEWAC - Totally Enclosed Water to Air Cooled



Made of aluminum alloy (EN 1706) or structural steel (EN 10025–S235 JR) depending on application requirements.

Housing

Enclosure

Shield

Cooling system

Shaft

Fan

Main terminal box

Main components


Mounting

Construction

Heat Exchanger

Horizontal - IM 1001 or IM 1101 as per IEC 60034-7.

General dataMade in carbon steel and obtained by lamination (EN 10083–2 C40–N). Shaft is obtained by forging from 290 mm diameter and above.The shaft is tested at the manufacturer in order to check it is defect-free.


ConstructionMounted on top of alternator. Double tube made of CuNi 90/10.Copper fins housing.Equipped with water leakage detector.

Exchanger dataDesigned pressure 6 bar. Test pressure 10 bar Power: up to 200 kW Water flow: up to 18 m3/h Max glycol: 30%Type of water: fresh water or marine (salt) waterFlanges: PN6 – PN10 – Special (ANSI) Position can be adjusted to site conditions.

IC81W as per IEC 60034-6. Primary fluid (water) is flowing by external water system. Internal air is flowing by a fan mounted on the shaft of the generator at the driven side.


29


Technical data

Stator/Rotor core

Rotor Salient pole type.Made by copper flat wire.H class insulated with enamel coating.Winding retaining by pass-through bars of high quality steel.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced with a half key applied to the shaft extension in accor-dance with IEC 60034-14 to vibration grade normal A. Special vibration level construction are available.

Stator: H class insulated with a synthetic enamel.Rotor: H class insulated with a synthetic enamel.



Bearing

Insulation system

Impregnation system


General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubrica-ted sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D-End side and floating bearings on the N-End side.Bearing selection Antifriction bearings up to 560 frame size included. Sleeve bearings from 630 frame size included (available for smaller frame sizes)Antifriction bearings can be mounted on 630/710 frame size according to site working conditions. Regreasing system (for antifriction bearing)Both bearings are fitted with a grease nipple.Bearing insulationND end bearing can be insulated to prevent any harmful circulating current from passing through the bearing surfaces. Insulated antifriction bearings in standard configuration:• 4, 6 poles: insulated N-End bearing from 630 frame size• 8 poles: insulated bearing from 400 frame size• 10 poles: insulated bearing from 500 frame sizeAll ND end sleeve bearings are insulated as standard. All configurations are designed to withstand the following marine inclination.

Static Dynamic






All generators are provided with a amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit. A power fac-tor regulator (to work in parallel with the main) is available on request.

All generators comply with marine rules regarding transient performance.The voltage drop due to the application of 60% of nominal load is within 15%.

All generators equipped with overboosting device to ensure a three phase short circuit current (Icc) higher than 3 times the rated current (In): Icc > 300% In




Overloads

Parallel operations

Transient ratings


Radio interference


Vibrations


31

RTD devices in standard configuration:• 1 RTD on each phase of stator winding (≥630 frame size)Terminals in auxiliary terminal box.

Other configurations available:• DUPLEX type• RTD for inlet / outlet air • RTD for inlet / outlet water

Size Power (W)

250 125

315 - 355 200

400 - 560 400

630 - 710 600

800 - 900 800

Auxiliary devices

Heaters installed at N-End side. Heaters are standards on all frame size.Space heaters

RTD - PT100

Optional features

• Reinforced construction for high linear vibrations• flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)• neutral point terminals in separate terminal box • terminal box inside air duct (internal terminal box)• cooling system IC 86W with additional forced ventilation• cooler mounted on side• increase protection degree up to IP 54, IP 55 or IP 56• lifted feet to couple the generator with engine on existing baseframe• redundant rotating rectifier with 12 diodes• insulated bearing and earthing brush• AVR supplied loose• automatic power factor control (analog type)• digital D-Vo for frame 250 – 710 (supplied loose)• redundant AVR system• excitation/overboosting PMG mounted on generator• lubrication system for sleeve bearing• other options available on request.


Model MJVM



Frame 250 ÷ 900

Poles 4, 6, 8, 10 and 12(over contact MM)

Cooling IC 611

IP IP 44. Available up to IP 56

Main applications

Off-shore and emergency

Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Certificate

Test and survey


kVA

(at 60 Hz)3.500 4.300 5.600 5.600 4.600




TEAAC GENERATORS: MJVM

33

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase strength.Marelli Generators for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

TEAAC – Totally Enclosed Air to Air Cooled


IC 611 as per IEC 60034-6. Primary fluid (air) driven by a second fan (internal fan) mounted on shaft at N-End side. Internal air is flowing by a fan mounted on the shaft of the gene-rator at the driven side.


Made of aluminum alloy (EN 1706) or structural steel (EN 10025 – S235 JR) depending on application requirments.

Made of structural steel (EN 10025 - 5235 JR)

ConstructionMounted on top of alternator. Tube made of P - AIMgSi UNI 3569Housing: EN 10025 - 5235JR



Housing

Enclosure

Shield

Cooling system

Shaft

Fan

Internal fan

Main terminal box

Heat Exchanger

Main components


Mounting

Construction

General dataMade in carbon steel and obtained by lamination (EN 10083 – 2 C40 – TN). Shaft is obtai-ned by forging from 290 mm diameter and above. The shaft is tested by the manufacturer to ensure it is defect-free.



Technical data

Stator/Rotor core


General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard ho-rizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D end side and floating bearings on the ND end side. Bearing selection Antifriction bearings up to 560 frame size included. Sleeve bearings from 630 frame size included (available for smaller frame sizes).Antifriction bearings can be mounted on 630/710 frame size according to site working conditions.


Bearing insulationND end bearing can be insulated to prevent any harmful circulating current from passing through the bearing surfaces. Insulated antifriction bearings in standard configuration:• 4, 6 poles: insulated ND-end bearing from 630 frame size• 8 poles: insulated bearing from 400 frame size• 10 poles: insulated bearing from 500 frame size


Stator: H class insulated with a synthetic enamelRotor: H class insulated with a synthetic enamel


Specific marine treatment.Epoxivinilic and polyacrylic. Total minimum thickness 120 micromillimeters.Epoxivinilic: Epoxy two component products, with vinyl changePolyacrylic: Two components polyurethane product formulated with unmodified hydroxyl acrylic resin.

Bearing

Insulation system

Impregnation system



Static Dynamic




Overloads


Rotor Salient pole type.Made by copper flat wire.H class insulated with enamel coating.Winding retaining by pass-through bars of high quality steel.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced with a half key applied to the shaft extension in accor-dance with IEC 60034-14 to vibration grade normal A. Special vibration level construction are available.

35

All generators equipped with overboosting device ensure a three phase short circuit cur-rent (Icc) higher than three times the rated current (In): Icc > 300% In.





Radio interference


Vibrations

Auxiliary devicesHeaters installed at N-End side. Heaters are standard on all frame size.Space heaters

RTD - PT100 RTD devices in standard configuration:• 1 RTD on each phase of stator winding (≥630 frame size)Terminals in auxiliary terminal box.

Other configurations available:• DUPLEX type• RTD for inlet / outlet air • RTD into oil tank for sleeve bearing

Size Power (W)

250 125

315 - 355 200

400 - 560 400

630 - 710 600

800 - 900 800

Optional features

• Flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)• neutral point terminals in separate terminal box• cooling system IC 616 with additional forced ventilation• increase protection degree up to IP 54, IP 55 or IP 56• lifted feet to couple the generator with engine on existing baseframe• redundant rotating rectifier with 12 diodes• insulated bearing and earthing brush• AVR supplied loose• automatic power factor control (analog type)• digital AVR D-Vo for frame 250 – 710 (supplied loose)• redundant AVR system• excitation/overboosting PMG mounted generator• other options available on request.

All generators are provided with a amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit. A power fac-tor regulator (to work in parallel with the main) is available on request.


Parallel operations

Transient ratings


Marine Survey Certificate supplied with the machine.Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Model MJHM



Frame 400 ÷ 1.250


Cooling IC 01

IP IP 23. Available up to IP 44 with filters

Main applications

Propulsion generator, shaft generator, hybrid machine, auxiliary generator, off-shore and variable speed gene-rator.

Certificate

Test and survey


kVA

(at 60 Hz)10.000 9.000 11.000 11.000 10.000




ODP GENERATORS: MJHM

37

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Generators for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

ODP - Open Drip Proof


Mounted on top.Made of formable steels EN 10130.

Made of aluminum alloy (EN 1706) or structural steel (EN 10025 – S235 JR) depending upon application requirements.

Housing

Enclosure

Shield

Cooling system

Shaft

Fan

Main terminal box

Main components


Mounting

Construction

IC 01 as per IEC 60034-6


General dataMade in carbon steel and obtained by lamination (EN 10083–2 C40–TN). Shaft is obtained by forging from 290 mm diameter and above. The shaft is tested to ensure defect-free performance.



Technical dataStator/Rotor core

Rotor Salient pole type.Made by copper flat wire.H class insulated with enamel coating.Winding retaining by pass-through bars of high quality steel.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced with a half key applied to the shaft extension in accordan-ce with IEC 60034-14 to vibration grade normal A. Special vibration level constructions are available.



Stator: F class insulated with a synthetic enamelRotor: H class insulated with a synthetic enamel

Stator and rotor are VPI treated with an unsaturated polyester amide resin which is polymerized in an oven.

Specific marine treatment.Epoxivinilic and polyacrylic.Total minimum thickness 120 micromillimeters.Epoxivinilic: Epoxy two component products, with vinyl changePolyacrylic: Two components polyurethane product formulated with unmodified hydroxyl acrylic resin.

Insulation system

Impregnation system



Static Dynamic



General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D end side and floating bearings on the ND end side.



Bearing insulationND end bearing can be insulated to prevent any harmful circulating current from passing through the bearing surfaces. Insulated antifriction bearings in standard configuration:• 4, 6 poles: insulated ND end bearing from 630 frame size• 8 poles: insulated bearing from 400 frame size• 10 poles: insulated bearing from 500 frame size


Bearing General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D-End side and floating bearings on the N-End side.



39

During continuous duty (S1), the following overloads are allowed: 10% for 1 hour 15% for 10 minutes30% for 4 minutes50% for 2 minutesThese overloads must be occasional and followed by 1 hour of running at normal load or less.

All generators are provided with an amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit. A power fac-tor regulator (to work in parallel with the main) is available on request.


All generators equipped with an overboosting device ensure a three phase short circuit current (Icc) higher than 3 times the rated current (In): Icc > 300% In




Overloads

Parallel operations

Transient ratings


Radio interference


Vibrations



Auxiliary devices

Heaters installed at N-End side.

Space heaters

RTD - PT100 RTD devices in standard configuration:• 1 RTD on each phase of stator winding • 1 RTD on each bearing (≥630 frame size)Terminals in auxiliary terminal box.

Other configurations available:• DUPLEX type• RTD for inlet / outlet air

Size Power (W)

400 - 560 400

630 - 710 600

800 - 900 800

1000 1000

1120 1200

1250 1400

• Reinforced construction for high linear vibrations• flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)• neutral point terminals in separate terminal box • increase protection degree up to IP 44 with filters• lifted feet to couple the generator with engine on existing baseframe• redundant rotating rectifier with 12 diodes• insulated bearing and earthing brush• AVR supplied loose• automatic power factor control (analog type)• digital AVR D-Vo for frame 400 – 810 (supplied loose) (≤6900V)• redundant AVR system• excitation/overboosting PMG mounted on generator (≤6900V)• lubrication system for sleeve bearing• other options available on request.

Optional features

41

Marine Survey Certificate supplied with the machine.Certificate


Generators are designed in compliance with: IEC EN 60034 - 1BS 4999 - 5000NEMA MG 1.32


Model MXB-EM

Output Up to 375 kVA

Voltages Up to 480 V

Frame 160 ÷ 250

Poles 4

Cooling IC 01

IP IP 23. Available up to IP 44 from 180 to 250 frame size.

Other applications

Auxiliary generator, off-shore and emergency

Test and survey

ODP GENERATORS: MXB-EM


ODP - Open Drip ProofEnclosure

Cooling system


Mounting

Construction



Horizontal single bearing (160 frame size).Horizontal single bearing - double bearing available on request from 180 to 250 frame size.

Fabricated steel.

Made of Bakelite 7-pins (from 160 to 180 frame size); 9-pins (from 225 to 250 frame size).

Plastic up to MXB-EM 180 SC4 included - Aluminum alloy above.

Housing

Shaft

Fan

Terminal board

Main components

Carbon steel - hot rolled.

Fan

N-End Endshield.Aluminum alloy (from 160 to 225 frame size).Cast iron (250 frame size).

Shield


Technical data

Stator/Rotor core

Rotor Salient pole type.Made by copper wire.H class insulated with enamel coating.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced.

Class H for stator and rotor.

Epoxy resin through high quality process.

CW 1081 on request.

Bearing

Insulation system

Impregnation system


General dataSingle or double antifriction bearing grease lubricated (ball type).Bearing lifetime >=20'000 hours.

43


All generators are provided with an amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit (available on 180, 225 and 250 frame size).

Generators with auxiliary winding or PMG ensure a three phase short-circuit current (lcc) higher than 3 times the rated current (In): lcc > 3 In for 10 seconds.


Tipically THD < 2% at no load / THF <2%.


Overloads

Parallel operations


Radio interference

THD (Total Harmonic Distortion) / THF

Vibrations


Auxiliary devices

Heaters when installed:Space heaters

RTD - PT100 Configuration available:• N. 3 PT100 resistance temperature detectors in stator windings• N. 1 PT100 on N-End bearing• N. 1 PT100 duplex type on N-End bearing• N. 1 PT100 duplex type on D-End bearing (for double bearing configuration)• N.1 PT100 on D-End bearing (for double bearing configuration).

Size Power (W)

160 - 180 200

225 - 250 400

Optional features

• Increase protection degree up to IP 44• AVR supplied loose• automatic power factor control (analog type)• digital AVR D-Vo • redundant AVR system• excitation/overboosting PMG mounted on generator• other options available on request.


Marine Survey Certificate supplied with the machine.Marelli Motori is DNV type approved and has the ABS design assessment. Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society. SOLAS compliance declaration.

Certificate

Test and survey


kVA

(at 60 Hz)4.000 5.000 6.500 6.000 5.400


Generators are designed in compliance with: IEC 60034 - 1BS 4999 - 5000NEMA MG 1.32Generators conform to EU rulesUL/CSA certifications available on request.


Model MJBM



Frame 315 ÷ 900


Cooling IC 01

IP IP 23. Available up to IP 44 with filters.

Other applications

Propulsion generator, shaft generator, hybrid machine, auxiliary generator, off-shore, variable speed generator and emergency

ODP GENERATORS: MJBM

45

Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength.Marelli Generators for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3.

ODP - Open Drip Proof


Mounted on top up to 630 frame size. Mounted on side from 710 frame size. Made of formable steels EN 10130.

Made of aluminum alloy (EN 1706) or structural steel (EN 10025–S235 JR) depending on application requirements.

Housing

Enclosure

Shield

Cooling system

Shaft

Fan

Main terminal box

Main components


Mounting

Construction




General dataMade in carbon steel and obtained by lamination (EN 10083 – 2 C40 – TN). Shaft is obtained by forging from 290 mm diameter and above. The shaft is tested at the manufacturer in order to check it is defect-free.




Technical data

Stator/Rotor core

Rotor Salient pole type.Made by copper flat wire.H class insulated with enamel coating.Winding retaining by pass-through bars of high quality steel.Rotating rectifier: Graetz diode bridge with 6 diodes.Rotors are dynamically balanced with a half key applied to the shaft extension in accor-dance with IEC 60034-14 to vibration grade normal. A. Special vibration level construc-tion are available.

Stator: H class insulated with a synthetic enamel.Rotor: H class insulated with a synthetic enamel.



Bearing

Insulation system

Impregnation system


General dataSingle or double antifriction bearing grease lubricated (ball or roller type) or oil lubricated sleeve bearing.The theoretical lifetime of bearings, L10h according to ISO 281/1 standard, of standard horizontal construction generators, without external forces (radial and / or axial) is in excess of 50.000 hours. On request, the lifetime of bearings, L10h can be in excess of 100.000 hours. Locating bearings are on the D-End side and floating bearings on the N-End side.Bearing selection Antifriction bearings up to 560 frame size included. Sleeve bearings from 630 frame size included (available for smaller frame sizes).Antifriction bearings can be mounted on 630/710 frame size according to site working conditions.

Regreasing system (for antifriction bearing)Both bearings are fitted with a grease nipple.

Bearing insulationND end bearing can be insulated to prevent any harmful circulating current from passing through the bearing surfaces. Insulated antifriction bearings in standard configuration:• 4, 6 poles: insulated N-End bearing from 630 frame size• 8 poles: insulated bearing from 400 frame size• 10 poles: insulated bearing from 500 frame size



Static Dynamic



47


All generators are provided with a amply sized damper cage and are suitable for parallel operations with other generators, when equipped with the paralleling unit. A power factor regulator (to work in parallel with the main) is available on request.


All generators equipped with overboosting device ensure a three phase short circuit cur-rent (Icc) higher than 3 times the rated current (In): Icc > 300% In




Overloads

Parallel operations

Transient ratings


Radio interference


Vibrations



Auxiliary devices

Heaters installed at ND end side.Space heaters

RTD - PT100 RTD devices in standard configuration:• 1 RTD on each phase of stator winding (≥630 frame size)Terminals in auxiliary terminal box.

Other configurations available:• DUPLEX type• RTD for inlet / outlet air.

Size Power (W)

400 - 560 400

630 - 710 600

800 - 900 800

Optional features

• Reinforced construction for high linear vibrations• flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)• neutral point terminals in separate terminal box• increase protection degree up to IP 44• lifted feet to couple the generator with engine on existing baseframe• redundant rotating rectifier with 12 diodes• insulated bearing and earthing brush• AVR supplied loose• automatic power factor control (analog type)• digital AVR D-Vo• redundant AVR system• excitation/overboosting PMG mounted on generator• lubrication system for sleeve bearing• other options available on request.

49

AVR Selection table

AVR typeDigital

D-Vo Light D-Vo

Code 10024471 10024470

Generator voltage ≤6900V >6900V ≤6900V >6900V

Generator frame size

Standard 160 ÷ 800+ 400 ÷ 800+ - -

Optional - - 160 ÷ 800+ 400 ÷ 800+

AVR supplyStandard Mains, Auxiliary winding PMG Mains, Auxiliary winding PMG

Optional PMG - PMG -

Over-excitation device Auxiliary winding (1)

VARICOMP (2) PMG Auxiliary winding (1)

VARICOMP (2) PMG

Voltage sensing Three phase (3)

Voltage remote control Arrangement

Radio interference suppressor Arrangement for external filters

Parallel operation with the mains Internal

Parallel operation with similar generators Arrangement

Standard protections

Field over-current, Field over-voltage,

Generator over/under voltage, Generator over-current,

Loss of sensing

Limiters Under-frequency,Over/Under-excitation

Functions

PC interface, Soft start,

Auxiliary inputs, Contact inputs,

DMS

--

Modbus TCPFRT function

Certification DNV-GL-

DNV-GLUL

(1) Standard on all 4 pole L.V. 160 ÷ 450 generators.(2) Standard on the following generators: • 6+ pole 400 ÷ 450 frame ≤1000V• all 500+ frame generators• all 400 ÷ 450 frame ≤6900V.(3 ) Single-phase sensing is standard for all MJH generators, three-phase sensing is optional.

Asia PacificMarelli Motori Asia Sdn BhdNo. 7, Jalan Tajuh Satu 27/29A, Section 27, 40400 Shah Alam, Selangor Darul Ehsan Malaysia (T) +60 3 5102 [email protected]

Central EuropeMarelli Motori Central Europe Gmbh Heilswannenweg 5031008 Elze - Germany(T) +49 5068 462 400(F) +49 5068 462 [email protected]

CONTACTS

Italy HQMarelli Motori S.r.l.Via Sabbionara 136071 Arzignano (VI) - Italy (T) +39 0444 479 711(F) +39 0444 479 [email protected]

USAMarelli USA, Inc.2200 Norcross Parkway, Suite 290 Norcross, GA 30071 - United States(T) +1 859 734 2588(F) +1 859 734 [email protected]

South AfricaMarelli Motori South Africa (Pty) Ltd Unit 2, corner Director & Megawatt Road Spartan Ext. 23Kempton Park 1619 GautengRepublic of South Africa(T) +27 11 392 1920(F) +27 11 392 [email protected]

SpainRepresentative Office08195 Sant CugatBarcelona - Spain(T) +34 664 464 [email protected]

marellimotori.com

motor and generator series

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