B5V

Model	B5V
Power	Up to 3.100 kW
Voltages	Up to 690 V
Frame	500
Poles	4, 6 and 8
Cooling	IC 81W (IC 86W, IC 611, IC 616, IC 666 on request)
IP	IP 55 (IP 23, IP 44 with filters, IP 24W NEMA, IP 56 on request)
Enclosure	TEWAC – Totally Enclosed Water to Air Cooled
Main Applications	Cement, Chemical, Manufacturing processes, Metals, Mining, Power, Pulp and paper, Sugar mill, Water pumping and treatments
Sector	Industrial

Poles | kW | 60 Hz
Main components
Construction
Technical data
Optional features

Poles | kW | 60 Hz

4	4 3.100
6	6 2.500
8	8 2.000

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 hot-rolled structural steel (EN 10025 – S235 JR)
Shaft	Shaft General data Made in carbon steel (EN 10083 – 2 C40 – TN) Shaft design Cylindrical shaft with key.
Main terminal box	Main terminal box Mounted on side (right or left to be selected). Made of formable steels EN 10130.
Internal Fan	Internal Fan Made of hot-rolled structural steel (EN 10025 – S235 JR).
Heat Echanger	Heat Echanger 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 appropriate 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).

Construction

Cooling System	Cooling System IC 81W as per IEC60034-6. 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.
Degree of protection	Degree of protection IP 44 as per IEC60034-5. (Available up to IP 56)
Mounting	Mounting IM B3 and V1 as per IEC60034-7.

Technical data

Stator/Rotor core

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 epoxyresin VPI. The subsequent heat treatment hardens the resin.

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

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.