JD139（600kW）Inverter-fed Asynchronous Motor for Oil Drilling Machine　

Type: JD139（600kW）

Motor characteristics

　Frequency

　600kW

　Voltage

　690V

　Current

　660A

　Rated rotating speed

　660r/min

　Rated torque

　8682N.m

　Range of constant -power

　660～1960r/m

　Duty type

　Continuous

Main features

Integrated explosion-proof type: Expzde Ⅱ BT4 (Serial number of certificate )

Stator adopts shaped hard winding;

It is installed with explosion-proof heater（AC220V，200W，50Hz）

High strength copper alloy squirrel-cage rotor

200 level corona-resistance insulation structure

Rotating shaft applies high strength alloy steel material

IP55 increased-safety explosion-proof stainless steel junction box

It is installed with explosion-proof air pressure switch for positive pressure protection and explosion-proof overhaul switch for system overhaul protection

Each phase winding of stator is embedded with two PT100 stator winding temperature sensors

Imported SKF/FAG bearing is applied

Bearing temperature sensor

Blower power: 11kW，380V，3136Pa，110m³/min

Integrated protection grade IP44

Conduct galvanize and antirust treatment on all the exposed fasteners