LRT / MJRT

SERIES: LRT / MJRT
POWER: Up to 5500 kVA
VOLTAGE: Up to 690 V
FRAME: 315 – 900
POLES: 4 to 20 (over contact MM)
FREQUENCY: 50/60 Hz
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; MGC II above
BEARINGS: antifriction or sleeve (on request from frame 400)
APPLICATIONS: Cross-Flow turbines, Francis turbines, Kaplan turbines, Pelton turbines, Turgo turbines
STANDARDS: IEC 60034
CERTIFICATIONS: UL/CSA certification available on request

Main Options:

• Special shaft end for direct coupling with turbine
• Bearings arrangement suitable for high axial and radial forces coming from the turbine
• Reinforced rotor design for high overspeed
• Horizontal or vertical shaft design
• Dedicated current transformer installed on neutral point (differential protection and measurement)
• Insulated bearing and earthing brush
• Arrangement for rotor earth fault protection 64R
• Additional flywheel for dedicated inertia value
• Arrangement for vibration sensors
• Brake system
• Lubrication system for sleeve bearing