Table 3-2 Data on the rating plate
Item Description Item Description
(1) Type of motor (12) Rated speed [rpm]
(2) Motor type (13) Starting current ratio
(3) Serial number (14) (empty)
(4) Type of construction (15) Certificate number
(5) Temperature class (16) Degree of protection
(6) Rated voltage [V] and connections (17) Rotor class
(7) Rated frequency [Hz] (18) Motor weight [kg]
(8) (Content depending on the version) (19) Additional information (optional)
(9) Rated current [A] (20) Maximum speed [rpm]
(10) Rated power [kW] (21) Country of manufacture / City
(11) Power factor [cos φ]
Efficiency requirement
According to EU Regulation (EC) No. 640/2009, the IE3 efficiency requirement for low-voltage
motors with a power of 7.5 kW to 375 kW for line operation has been in force since January
01, 2015.
From January 1, 2017, the IE3 efficiency requirement for motors with a power of 0.75 kW to
375 kW applies for line operation.
Efficiency IE2 still applies for motors that are operated from a converter.
Please note the applicable country-specific rules and regulations.
Rotors
The rotor assembly is pressed onto the shaft together with the cage winding. The drive end of
the shaft usually has a cylindrical shaft end. Dependent on the design, a second shaft end
may be located at the non-drive end.
Cooling
The cooling system is designed as a closed, internal cooling circuit. The heat lost from the
machine is dissipated partially via heat conduction and partially via the cooling air at the cooling
water flowing through the cooling pipes. A shaft-mounted fan ensures circulation of the cooling
air.
Description
3.1 Comparison of IEC and GOST (D47) standards
SIMOTICS TN Series N-compact 1LH8
Operating Instructions 06/2017 21
To Next Page
Loading...
