MJHT

SERIES: MJHT
POWER:  Up to 11500 kVA
VOLTAGE: Up to 15000 V
FRAME: 400 – 1250
POLES: 4 to 20 (over contact MM)
FREQUENCY: 50/60 Hz
PROTECTION DEGREE (IP): 23
COOLING METHOD (IC): 01
AMBIENT TEMPERATURE: -15°C to +60°C
AVR: “Vn <= 6900 V: MGC I up to 560; MGC II above
Vn > 6900 V: D-Vo Light”
BEARINGS: antifriction or sleeve (on request)
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
• Arrangement for air duct system to convey inlet / outlet cooling air
• Additional flywheel for dedicated inertia value
• Arrangement for vibration sensors
• Brake system
• Lubrication system for sleeve bearing