Designed for use in the main drives of rolling mills and other mechanisms.
Explanation of designation:
P2 – designation of the motor series
630 – height of rotation axis, mm
XX – number of armature diameter – 20, 21, 24 (armature diameter, mm, accordingly 1800, 2150, 3100)
X – number of length of armature core (1, 2, 3, 4)
X – quantity of brushes on each bracket (5. 6, 8,11)
C – design on rolling bearings
X – climatic version (УХЛ, O, T)
X – location category (4,3)
For design Y3 minimum temperature of ambient air is minus 10°C
The motors are enclosed machines with closed or open circuit induced ventilation employing air coolers.
Tolerable 15-s operation overloads:
– at rated rotation frequency – 2,0 I nom,
– at maximum rotation frequency – 1,8 I nom. Inom. means rated current value.
Breaking overloads in the whole regulation range of rotation frequency – 2,25 Inom.
When operating under the above-specified overloads the maximum rate of current change in armature circuit is up to 100
The motors are intended for use in temperate climate and withstand continuous current loads 1,15 Inom and during two
hours – 1,25 Inom at temperature rise for class “F” insulation.
Rated armature voltage – 930 V.
Rated voltage of separate motor excitation – 220 V.
For power transfer to 110 V the motor has an outlet for four finishes of field winding.
The motor is supplied from static and rotatable voltage converters Insulation of windings of armature circuit relatively the
motor frame is designed for 1500 V, field winding – 1000 V.
Motors operation stability at rotation frequency close to zero and at more than two-fold field reduction is performed by the
Tolerable is three-fold excitation forcing.
|Motor type||Power, kW||Current, А||Rotation speed, rpm||Efficiency regardingexcitation losses,%||Dynamic inertiamoment, tm2|