Electric motors for driving smoke exhaust fans

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Asynchronous electric motors designed to drive fans for ventilation of metro stations and tunnels.
Nominal value of climatic factors U2, U3 according to GOST 15150.
Execution of the motor according to the method of installation IM1001 in accordance with GOST 2479.
Maximum root mean square value of vibration velocity – 2,8 mm / s.
Execution according to the degree of external mechanical influences corresponds to the M1 group according to GOST 17516.1.
Reversible motors.
Rated voltage – 220/380; 380/660 V.
Rated mains frequency 50 Hz.
Nominal duty S1.
Winding connection diagram «triangle / star».
Insulation class – H according to GOST 8865.
Reliability indicators:
Average resource before overhaul 50 000 h.
Mean time between failures – 7 500 h.
Degree of protection of the case and terminal box: IP 54.
Cooling method: IC0141
Sound level at a distance 1 m – 85 dB no more.
Thermistors are installed in the stator winding (one for each phase).
Electric motors are produced according to TU 31.1-32832237-003:2006
Direct start of electric motors, provided as at nominal mains voltage, and when the mains voltage drops during the start-up time to 0,8 Unom.
The design of the electric motors allows the possibility of replenishing the lubricant without disassembling.
Electric motors are equipped with SKF bearings. The design of the bearing assemblies provides for places for the installation of resistance thermocouples TSP-0690 for monitoring the temperature of bearings. Electric motors allow installation on the impeller shaft of an axial fan with a diameter 2000 mm, weighing up to 700 kg.
Axial load no more 2,5 kN, flywheel moment of impeller GD2 no more 550 kg * m2.
Electric motors provide operation in smoke exhaust mode at a temperature 250?From within two hours.
An example of recording the designation of an engine 6AMU315M10DU3 with a voltage of 380 / 660V, network frequency 50 Hz, power 75 kw, climatic version U3, execution according to the installation method IM1001 with input device K-3-II (with terminal panel and two unions) when ordering it and in the documentation of another product: “Engine 6AMU315M10DU3, 380/660 V, 50 Hz, IM1001, К-3-II, THAT 31.1-32832237-003:2006”

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