|Power||Up to 5.100 kW|
|Voltages||Up to 690 V|
|Power LV||300 ÷ 6000 kW|
|Power HV/MV||250 ÷ 5500 kW|
|Frame||355 ÷ 800|
|Poles||4, 6, 8,10 and 12|
|Cooling||IC 611 (or IC 616 optional)|
|Enclosure||TEAAC - Totally Enclosed Air to Air Cooled|
|Main Applications||Cement, Chemical, Manufacturing processes, Metals, Mining, Pulp and paper, Sugar mill, Water pumping and treatments|
B4W seriesB4W motor series have been expressly designed to work in the most severe environment conditions.
Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR)
Cooling SystemIC 611 as defined by IEC60034 - 6.
Closed machine with mounted heat exchanger, using air as the primary and secondary coolant.
This cooling method is suitable for motors installed in locations with limited or no access to cooling water.
Shaft mounted fans are fitted both inside and outside of the casing to supply the inside and outside cooling circuits respectively.
The motor is protected against dust and splashing water from any direction.
Protection degreeUp to IP 55 as defined by IEC60034-5.
Insulation systemClass F or H are available.
Protective treatmentVPI (Vacuum Pressure Impregnation).
Winding are impregnated with high quality materials using the latest technologies.
Impregnation systemTo whitstand salty atmosphere and for sandy environment.
Special treatments for corrodsive ambient to meet ISO 12944 on request.
Customizable terminal boxes for main and neutral connections.
Terminal boxesTerminals are suitable for multiple cable connections.
Auxiliary boxesDedicated terminal boxes for auxilairy devices.
Stator/Rotor coreLaminated 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 is thereby impregnated in an epoxyresin VPI.
The subsequent heat treatment hardens the resin.
RotorSquirrel 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.
Dual/multiple winding configuration
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.
The digital transformation of every aspect of our life is a great step forward in terms of opportunities and availability.READ MORE
Our customer is an Italian leading independent energy producer in the market of electricity from clean, renewable and sustainable sources.READ MORE
The General MacArthur will be one of the most efficient and technologically advanced dredges to ever enter the USA dredging market.READ MORE
This is one of the largest investments in the Norwegian shipbuild ing industry in the last century, extremely significant considering the current marine industry outlook.READ MORE
Nr. 20 oil&gas generators MJHV 710 LC4 IP55 (17) / IP56 (3) to equip emergency genset for a new refinery in Kuwait.READ MORE
XL generators specifically manufactured for the hydro power sector the largest electrical machines produced by Marelli Motori.READ MORE