MARINE

Technical Specifications

Model :
MJHRM
MJRM
MJHM
MJBM
MJVM
Rated Output (kVA) :
Up to 11,000
Up to 6,500
Up to 11,000
Up to 6,500
Up to 5,500
Rated Voltage (V) :
Up to 11,000
Up to 6,500
Up to 15,000
Up to 690
Up to 690
Poles :
4, 6, 8, 10 and 12
Cooling :
IC 81W
IC 81W / IC 86W
IC 01
IC 01
IC 611
IP :
IP 44. Available up to IP 56
IP 44. Available up to IP 56
IP 23. Available up to IP 44 with filters
IP 23. Available up to IP 44 with filters
IP 44. Available up to IP 56
Mounting :
Horizontal - IM 1001 or IM 1101 as per IEC 60034-7
Stator/Rotor Core :
Laminated and enamel-insulated on both sides to minimise eddy-current losses.
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 accordance with IEC 60034-14 to vibration grade normal A. Special vibration level construction is available.
Impregnation System :
Stator and rotor are VPI treated with an unsaturated polyester amide resin which is polymerized in an oven.
Protective Treatments :
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.
Transient Ratings :
All generators comply with marine rules regarding transient performance. The voltage drop due to the application of 60% of nominal load is within 15%.
Three Phase Short Circuit Current :
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
Radio Interference :
All generators are equipped with Class B Group 1 radio interference filters as defined by EN 55011.
THD (Total Harmonic Distortion) :
The no-load voltage wave form is sinusoidal with THD content less than 2%.
Vibrations :
Vibration level is in accordance with ISO 10816. Measurement, evaluation and limits of vibration severity are in accordance with IEC 60034-14.
*Enclosure:
TEWAC
TEWAC
ODP
ODP
TEAAC

TEAAC – = Totally Enclosed Air to Air Cooled.

TEWAC =  Totally Enclosed Water to Air Cooled.

ODP = Open Drip Proof

Marine Survey Certificate supplied with the machine.

ABS design assessment.

Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society.

Generators are designed in compliance with:

IEC EN 60034-1
BS4999 – 5000
VDE 0530
NF 51 – 100
NF 51 – 111
OVE M – 10
NEMA MG 1.32
Generators conform to EU rules.
UL/CSA certifications available on request.

MJHRM

MJRM

MJHM

General data Made 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. Shaft design Double bearing generator: cylindrical shaft with key.
MJBMMade of spheroidal graphite cast-iron (EN 1563) or grey castiron (EN 1561) up to 630 frame size. Made of structural steel (EN 10025 – S235 JR) above.
MJVMGeneral data Made 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. Shaft design Double bearing generator: cylindrical shaft with key.

MJHRM

MJRM

MJHM

MJBM

MJVM

Mounted on side (right or left will be selected).
Made of formable steels EN 10130.
Mounted on side (right or left will be selected).
Made of formable steels EN 10130.
Mounted on top. Made of formable steels EN 10130.Mounted on top up to 630 frame size. Mounted on side from 710 frame size. Made of formable steels EN 10130.Mounted on side (right or left will be selected). Made of formable steels EN 10130.

MJHRM

MJRM

MJHM

MJBM

MJVM

Stator: F class insulated with a synthetic enamel (class H option with BH technology). Rotor: H class insulated with a synthetic enamel.Stator: H class insulated with a synthetic enamel (class F standard for generators with H>=800 or form wound form H=400. Class H option with BH technology). Rotor: H class insulated with a synthetic enamel.Stator: F class insulated with a synthetic enamel (class H option with BH technology). Rotor: H class insulated with a synthetic enamel.Stator: H class insulated with a synthetic enamel (class F standard for generators with H>=800 or form wound form H=400. Class H option with BH technology). Rotor: H class insulated with a synthetic enamel.Stator: H class insulated with a synthetic enamel (class F standard for generators with H>=800 or form wound form H=400. Class H option with BH technology). Rotor: H class insulated with a synthetic enamel.
Model:MJHRM Model:MJRM Model:MJHM
Frame SizeAVR Type
 Frame Size
AVR Type
 Frame SizeAVR Type
        
400 – 450
MEC 20 analogue/digital 250
Mark V analogue
 400 – 450MEC 20 analogue/digital
500 – 560M40FA610A analogue 315 – 450MEC 20 analogue / digital 500 – 560M40FA610A analogue
630 – 710M63FA310A analogue 500 – 560M40FA610A analogue 630 – 710M63FA310A analogue
800 – 1,250MEC 100 digital 630 – 710M63FA310A analogue 800 – 1,250MEC 100 digital
   800 – 900MEC 100 digital   
        
Model:MJBM Model:MJVM   
Frame SizeAVR Type Frame SizeAVR Type   
        
160 – 250Mark V analogue 160 -250Mark V analogue   
315 – 450MEC 20 analogue / digital 315 – 450MEC 20 analogue / digital   
500 – 560M40FA610A analogue 500 -560M40FA610A analogue   
630 – 710M63FA310A analogue 630 – 710M63FA310A anaogue   
800 – 900MEC 100 digital