- Country of manufactureRussia
Crane and metallurgical electric motors of a direct current of a series D are intended for work in electric drives of hoisting - and - transport mechanisms, metallurgical units.
High reloading ability and wide range of regulation of frequency of rotation are characteristic of these engines.
Group of service conditions on mechanical factors — M3 in accordance with GOST 17516.1 - 90
Electric motors are delivered:
– in the closed execution with natural cooling;
– in the protected execution with independent ventilation.
Class of heat stability of isolation: N.
Type of climatic modification: At, UHL, T in accordance with GOST 15150 - 69.
Category of placement: 1, 2.
The average level of noise does not exceed 85 dBA in accordance with GOST 16372 - 84. For the D810 engine with the lowered rotation frequency value of the average level of noise should not exceed 70 dBA.
Degree of protection of engines in accordance with GOST 17494 - 87:
– for the closed execution — IP44 (for export — IP54);
– for the protected execution — IP20.
Crane and metallurgical electric motors of a direct current of a series D are manufactured on rated voltage of 220 and 440 Century.
Ways of excitement: consecutive, mixed, parallel, parallel with the stabilizing winding.
– in the closed execution of S2 — 60 min. , S3 — 15, 25, 40, 60% and S1;
– in the protected execution — S1.
Designs on a way of installation: IM1003, IM 1004, IM4014 in accordance with GOST 2479.
Crane and metallurgical engines of a direct current of a series D allow to carry out regulation of frequency of rotation by change of the brought tension and extent of excitement.