Separately Excited DC Machine

separately excited dc machine is 100-355mm, which is the standard series of small DC motors specified in the Chinese machinery industry standard JB/T6316-92 "Technical Conditions for Z4 Series DC Motors"; The center height of 400-450mm is an expansion beyond the standard series; The center height of 500-710mm is a newly developed medium-sized DC motor in our factory. It can be widely used in various industrial sectors such as metallurgical rolling mills, metal cutting machines, papermaking, dyeing and weaving, printing, cement, plastic extrusion machinery, etc.
This motor can not only be powered by DC unit power supply, but also suitable for static rectification power supply. Moreover, it has a small moment of inertia, good dynamic performance, and can withstand high load change rates. It is particularly suitable for control systems that require smooth speed regulation, high efficiency, automatic speed stabilization, and sensitive response, and has the current international advanced level.
The rating of the electric motor is for continuous operation. In areas with an altitude not exceeding 1000m and an ambient air temperature not exceeding 40 ℃, the electric motor can operate at its rated capacity according to the data in the technical data sheet. The electric motor adopts F-class insulation.
separately excited dc machine is from 1.5kW to 840kW, with nine rated speeds of 3000, 1500, 1000, 750, 600, 500, 400, 300, and 200r/min. The excitation method is separate excitation, and the excitation voltage is 180V. In addition to the specified levels mentioned above, other power, armature voltage, speed, and excitation voltage values can be derived according to specific situations and user needs.
An electric motor with a rated voltage of 160V, when powered by a single-phase bridge rectifier, generally requires the use of an inductor. The inductance value of the external inductor is indicated on the motor nameplate. Electric motors with a rated voltage of 440V do not require external reactors.
The performance of this series of motors not only meets the national standard GB/T755 "Basic Technical Requirements for Rotating Electrical Machines", but also basically complies with the German VDE0530 standard.
Structural Introduction
The DC motor adopts an octagonal fully stacked structure, which not only has high space utilization, but also can withstand pulsating current and rapid load current changes when powered by a static rectifier.
separately excited dc machine typically do not come with series excitation windings and are suitable for automatic control technologies that require forward and reverse rotation. According to user needs, series excited windings can also be made. Motors with a center height of 100-280mm do not have compensating windings, but motors with a center height of 250mm and 280mm can be made with compensating windings according to specific situations and needs. Motors with a center height of 315-450mm have compensating windings.
The external installation dimensions and technical requirements of the motor with a center height of 500-710mm comply with IEC international standards, and the mechanical dimensional tolerances of the motor comply with ISO international standards.
Cooling method for separately excited dc machine

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