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Three-phase low-voltage frequency-controlled
Asynchronous electric motors of general purpose with square-cage rotor, variable-frequency are designed for operation as a part of a single and (or) group frequency-controlled electric drive or from an alternating current network in S1-S9 mode at 50 Hz and 60 Hz.
The use of electric motors is possible with the following types of speed control:
Embodiment of the engines differs in the presence/absence of an independent ventilation system, electromagnetic brake, speed/position sensor (encoder).
The list of electric motors embodiments:
The electric motors of standard type
There are used such ventilation methods for the electric motors according to IEC 60034-6.
Nominal values of climatic factors for engines of dimensions 132-400 mm in a standard design or equipped with independent ventilation, when operating – according to GOST 15150 for products of the type of climatic design У3, У2, ХЛ2, Т2.
Manufacturing of the electric motors of other climatic designs according to GOST 15150 requires preliminary approval from the Manufacturer.
When operating the electric motors of climatic design T2 at an ambient temperature of +50°C, their nominal power is reduced by 10%.
The electric motors are designed for operation in a non-explosive area that does not contain corrosive gases, which destroy metals and insulation, which is not saturated with conductive dust.
The maximum dust content of the environment is not more than 100 mg/m3.
Nominal power is provided in a long operating mode at a temperature of 40°C and a height above sea level of not more than 1000 m.
If the operating ambient temperature (air) exceeds + 40°C, the rated power of the electric motors should be reduced by 5% with a temperature increase of every 5°C. The maximum ambient temperature during operation should not exceed 60°C.
The level of protection of the electric motors is IP54 according to DSTU EN 60034-5:2015.
If the Customer requires it is possible to manufacture the electric motors with the level of protection IP55.
The group of the design of the influence of external mechanical factors is M1 according to GOST 17516.1
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