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Three-phase alternator MJBM series
6-pole8-pole4-pole

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Characteristics

Phase: three-phase
Number of poles: 6-pole, 8-pole, 4-pole
Electrical characteristics: low-voltage
Product applications: generator
Domain: marine
Power in kVA: 4,000 kVA, 5,000 kVA, 5,400 kVA, 6,000 kVA, 6,500 kVA
(5,438.48 hp, 6,798.11 hp, 7,341.95 hp, 8,157.73 hp, 8,837.54 hp)
Voltage: 1,000 V

Description

Housing 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. Shield 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. Shaft 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. Main terminal box Mounted on top up to 630 frame size. Mounted on side from 710 frame size. Made of formable steels EN 10130. Fan Made of aluminum alloy (EN 1706) or structural steel (EN 10025 – S235 JR) depending upon application requirements.