MJRM - MJHRM

Technical Features

SERIES: MJRM (Low Voltage) / MJHRM (Medium Voltage)
POWER: Up to 12000 kVA
VOLTAGE: Up to 15000 V
FRAME: 315 – 1250
POLES: 4 to 12
FREQUENCY: 50/60 Hz or variable speed
PROTECTION DEGREE (IP): 44 (up to 56 on request)
COOLING METHOD (IC): 81W
AMBIENT TEMPERATURE: 0°C to +60°C
WATER TEMPERATURE: Up to 40°C
AVR: E-Vo up to 630 frame; D-Vo Light above (Low Voltage) / D-Vo Light (Medium Voltage)
BEARINGS: antifriction or sleeve (on request)
APPLICATIONS: Auxiliary Generator, Shaft Generator, Hybrid Machine, Variable speed generator, Off-shore, PTO-PTI system
STANDARDS: IEC 60034-1 – BS 4999-5000 – NEMA MG 1.32
CERTIFICATIONS: Marine Survey Certificate

Main Options:

Flanged shaft for direct coupling with engine flywheel (in case of single bearing solution)
Reinforced construction for high linear vibrations
Neutral point terminals in separate terminal box
Raised feet to match engine baseframe dimensions (B20 – IM1101)
Dedicated current transformer installed on neutral point (differential protection and measurement)
Insulated bearing and earthing brush
Excitation/overboosting PMG mounted on generator
Arrangement for rotor earth fault protection 64R
Arrangement for vibration sensors