MJHT

Technical Features

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