B4JH - B5JH

ModelB4JH - B5JH
PowerUp to 4.000 kW
VoltagesUp to 6.600 V
Frame355 ± 630
Poles4, 6, 8 and 10
CoolingIC 71W
IPIP 55 (IP 56 optional)
Main ApplicationsCement, Chemical, Manufacturing processes, Metals, Mining, Power, Pulp and paper, Sugar mill, Water pumping and treatments
SectorIndustrial
  • Poles | kW | 50 Hz
  • Poles (kW 60 Hz)
  • Main components
  • Construction
  • Technical data
  • Construction
  • Technical data
  • Optional features

Poles | kW | 50 Hz

4
4
2700
6
6
2900
8
8
2700
10
10
2250

Poles (kW 60 Hz)

4
4
3200
6
6
3500
8
8
3000
10
10
2500

Main components

Housing
Housing
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.
Shield
Shield
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
Shaft
Shaft
General data
Made in carbon steel (EN 10083 – 2 C40 – TN) up to 450 frame and hotrolled structural steel from 500 frame (EN 10025 – S355 JR). Shaft design
Cylindrical shaft with key
Main terminal box
Main terminal box
Mounted on top or side (with vertical mounting) and made in cast iron or cold rolled formable steels depending from size.
Internal Fan
Internal Fan
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).
Heat Echanger
Heat Echanger
General data
Heat 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 data
Test pressure 9 bar
Max glycol : 20%
C 7 A1 W7 (Self-circulating primary coolant with integral heat exchanger using remote fresh water).
Reduces the noise level and it is ideal for constant torque, low speed, inverter applications.
The cooling fluid must be clean water.
Do not use:
- sea water,
- water with more than 120 mg/l of chloride,
- water with solid content over 10 mg/l.
Two flanged connections are provided for inlet and outlet of cooling water.
On the appropriate name plate heat exchanger characteristics are indicated: flow rate, inlet/outlet temperature, min/max pressure.
Frame sizeFlow rateInlet Temp.Outlet Temp.Max PressureMin Pressure
mml/min°C°Cbarbar
35550384561
40065384561
45070384861
50075384861
560120384861

Construction

Enclosure
Enclosure
TEWC – Totally Enclosed Water Cooled
Cooling System
Cooling System
IC 71W as per IEC60034-6.
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.
Degree of protection
Degree of protection
IP 55 as per IEC60034-5.
Mounting
Mounting
IM B3, V1 and V10 as per IEC60034-7.

Technical data

Stator/Rotor core
Stator/Rotor core
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.
Rotor
Rotor
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.
Bearing
Bearing
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.
Static Dynamic
List 15° Rolling ±22.5°
Trim Pitch ±7.5°
Dedicated constructions available for different values.

Construction

Enclosure
Enclosure
TEWC – Totally Enclosed Water Cooled
Cooling System
Cooling System
IC 71W as per IEC60034-6.
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.
Degree of protection
Degree of protection
IP 55 as per IEC60034-5 (IP 56 optional)
Mounting
Mounting
IM B3, B35, V1 and V10 as per IEC60034-7

Technical data

Stator/Rotor core
Stator/Rotor core
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.
Rotor
Rotor
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.
Bearing
Bearing
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 motors, 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.
Impregnation system
Impregnation system
Stator is VPI treated with an unsaturated polyester amide resin which is polymerised in an oven.
Insulation system
Insulation system
Stator: F class insulated with a synthetic enamel.
(H class insulation available on request)
Protective treatments
Protective treatments
Dedicated protective enamel is applied on the winding.

Optional features

List
List
  • 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.

Our product applications include:

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