Electric motors are designed to drive crane and other mechanisms working in short-term and repeated modes, including frequent launches and electric braking.
Electric motors can also be used for long -term operating mechanisms.
The electric motors are designed to power from the network 380 V, 50 Hz with three withdrawn ends from the stator winding, and can also be made at a voltage of 220/380 and 380/660 V with six withdrawn ends to connect phases into a star or triangle. At the request of the customer, engines are made to other voltages and frequencies.
MTF, MTH electric motors are made with a phase rotor.
MTF engines are designed for moderate climate (execution U1), MTN engines are designed for work at elevated temperatures (execution U1), for tropical climate (execution T1) and for cold climate (executing HL1).
Engine cooling - external blowing (IC 0141).
The degree of engine protection is IP 44, the degree of protection of the box of the conclusions and the hatch of the contact rings of the engines - IP 54.
Technical data of crane electric motors of the MTF and MTN with a phase rotor 50 Hz, 220/380 and 500 V: type MTF 111-6 MTF 112-6 MTH 111-6 MTH 112-6
Power on the shaft, kW, with PV = 40% 3.5 5 3 4.5
Rotation frequency, rpm 895 930 895 910
Stator current at 380 V, and 10.4 14.4 10.5 13.9
COS 0.73 0.7 0.67 0.71
Efficiency, % 70 75 65 69
Rotor current, and 15 16.9 13.2 15.6
The voltage between the rings of the rotor, in 165 203 165 203
Maximum moment, kgm 8.7 14 8.5 12
Flaw moment of the rotor, kgm2 0.195 0.27 0.195 0.27
Mass, kg 76 88 76 88
Maximum rotation frequency, rpm 2500
The ends of the shafts are cylindrical.
The main constructive performance on the paws with one end of the shaft (1m1001). The wishes of the customer can be performed with two identical ends of the shaft, as well as in execution with a flange on paws with a horizontal and vertical shaft.
| Motor | |
| Power kW | 3.5 |
| Frequency rpm | 1000 |
