Brand: SIMO Motor      Product Type: Brushed DC Motor      Rated Power: 225 kW

Rated Voltage: 160 V / 400 V / 440 V              Rated Speed: 680 rpm

Product Certification: CCC

Application Scope:

Chemical, mechanical, hydroelectric, and other technological fields.

Cooling Method: ICW37A86

Protection Class: IP54

Insulation Class: F

Model: ZKSL-315-22

The figure above is a schematic diagram of the ZKSL-315-22 225 kW 400 V/440 V SIMO air-water-cooled DC motor.

I. Overview of the ZKSL-315-22 225 kW 400 V/440 V SIMO Air-Water-Cooled DC Motor:
ZKSL-series DC motors—center heights from 100 mm to 450 mm—are newly developed medium-sized DC motors manufactured by our factory. This series is widely applicable to various industrial sectors, including metallurgical rolling mills, metal-cutting machine tools, papermaking, dyeing and weaving, printing, cement production, and plastic extrusion machinery.
Compared with the Z4 series, the ZKSL-series DC motors offer greater advantages: they can be powered not only by DC generator sets but also more suitably by static rectifier power supplies. Moreover, they feature low moment of inertia, excellent dynamic performance, and high tolerance for load variation rates—making them especially suitable for control systems requiring smooth speed regulation, high efficiency, automatic speed stabilization, and rapid response, thus representing internationally advanced technology.

The motor’s duty type is continuous duty (S1). Under conditions of altitude ≤1000 m and ambient air temperature ≤40 °C, the motor can operate at its rated values as specified in the technical data table. This series employs Class F insulation.
The ZKSL-series DC motors cover a power range from 1.5 kW to 840 kW; rated speeds include nine options: 3000, 1500, 1000, 750, 600, 500, 400, 300, and 200 rpm. The excitation method is separately excited, with an excitation voltage of 180 V. Beyond the standard specifications listed above, customized variants—including alternative power ratings, armature voltages, speeds, and excitation voltages—can be developed according to specific requirements and user needs.
Motors with a rated voltage of 160 V typically require an external reactor when supplied by a single-phase bridge rectifier; the required inductance value of the externally connected reactor is indicated on the motor nameplate. Motors with a rated voltage of 440 V do not require an external reactor.
The performance of this series complies not only with Chinese National Standard GB/T 755 “General Technical Requirements for Rotating Electrical Machines” but also substantially conforms to German VDE 0530 standards.
Model Nomenclature: ZKSL-280-11B — “Z” denotes DC motor; “4” denotes Series 4; “280” indicates center height (mm); the first “1” denotes core length code; the second “1” denotes front-end shield code (where “1” = short end shield and “2” = long end shield); “B” indicates presence of compensating winding.
Note: For model ZKSL-112/2-1, the digit after the “/” indicates the number of poles, and the second digit indicates the core length code.

The ZKSL-315-22 225 kW 400 V/440 V SIMO air-water-cooled DC motor generally does not incorporate a series field winding, making it suitable for automatic control applications requiring forward/reverse rotation. Upon user request, it can alternatively be supplied with a series field winding. Motors with center heights of 100–280 mm are not equipped with compensating windings; however, motors with center heights of 250 mm and 280 mm may optionally include compensating windings depending on specific requirements. Motors with center heights of 315–450 mm are equipped with compensating windings.
The overall dimensions and mounting dimensions for motors with center heights ranging from 500 mm to 710 mm, as well as their technical requirements, comply with IEC international standards; mechanical dimensional tolerances conform to ISO international standards.
(2) Cooling methods and structural/ mounting configurations
IC06: Self-contained blower with external ventilation;
IC17: Air inlet via duct, outlet via louvered exhaust;
IC37: Both air inlet and outlet via ducts;
IC611: Totally enclosed with air-to-air cooler;
ICW37A86: Totally enclosed with air-to-water cooler.
Multiple derivative configurations are available, such as self-ventilated, axial-fan-equipped, totally enclosed, and air/air-cooler types. Required cooling airflow volume, static pressure, and fan motor power for each frame size are listed in Table 1. The basic enclosure protection rating for the entire motor series is IP21S.
The mounting configurations of this motor series comply with GB/T 997 “Motor Structural Mounting Types and Designations”; mounting dimensions—except for the axial distance between foot bolt holes (dimension B)—conform to IEC standards.
The motor terminal box is located on the right-hand side of the frame (i.e., standard box position) when viewed from the drive end (non-commutator end). If the user requires the terminal box on the opposite side, “reverse box” must be specified at the time of ordering. The standard shaft configuration is single-shaft extension; with the terminal box in standard position, the shaft extends to the left (left-hand shaft extension). Dual-shaft extension is also available upon request. The basic direction of rotation, viewed from the commutator end, is counterclockwise. Power transmission is by elastic coupling; alternatively, the motor may be used with belt or gear drives imposing limited radial loads.
(3) Accessories for ZKSL-315-22 225 kW 400 V / 440 V SIMO air/water-cooled DC motor
Upon user request, the motor can be designed to accommodate optional accessories such as tachogenerators, pulse generators, centrifugal switches, and brakes; specific requirements may be discussed directly with our factory.