High-voltage electric motor 500 kW, 989 rpm, 6 000 V, H17R 400-C-6-6

The design of the H17R 400-C-6-6 model is engineered for high power density, which operators value when space is limited in the machine room and technological unit. This 900 rpm electric motor with an output of 500 kW delivers stable engagement for heavy starts, smooth torque transmission and reserve capacity for long-term loading in systems where every operating cycle counts.

In practice, this is a 6000 V electric motor that meets the requirements for a three-phase electric motor in the energy sector, processing industry and large OEM assemblies. The basis is a compact solution that makes it possible to use full output within dimensions corresponding to H315 to H560 frames without unnecessarily enlarging the entire drive. For designers, this means easier integration into existing lines as well as new technological blocks.

Compact 900 rpm electric motor for 6 kV industrial drives

A 900 rpm electric motor in this class provides a balanced ratio between speed, torque and energy consumption. Rated current of 58,6 A, power factor of 0,86 and efficiency of 95,8 % provide a good basis for operation where not only machine output but also long-term operating costs are monitored. The six-pole electric motor is therefore suitable for systems that must operate stably under changing load.

Copper rotor for long service life and lower losses

Copper strip in the rotor cage helps maintain low losses while increasing thermal resistance during repeated starts and longer loading. Such a solution is important in operations where the motor does not work under ideal conditions and where reliable running without unnecessary intervention in production is expected. Insulation class F together with temperature rise B supports operation under demanding thermal conditions.

Special protection for dusty and humid operations

For technological spaces with dust, humidity or frequent cleaning, protection that reflects actual production conditions is important. Customers can select a solution according to protection level IP56, IP65, IP66 or IP67, expanding use in lines involving water, heavy industry and outdoor installations. A weight of 4200 kg also indicates that this is a robust machine intended for long-term loading.

Bearing design and temperature monitoring

DE bearing 6326-C3 and NDE bearing 6326-C3 are selected for stable operation under higher load and precise support of the rotor with a moment of inertia of 13,3 kg·m². The machine also allows for monitoring the temperature of the winding and bearings, which is a practical tool for maintenance teams in large factories when planning service interventions. VYBO Electric has long worked with solutions for large industrial drives, which is reflected in the emphasis on operating discipline.

Use in technological units and production lines

This model is suitable for assemblies requiring high starting output, precise operation and the ability to carry load over long periods without losing stability. Typical applications include:

• Milling lines in cement plants.
• Large fans for incinerators.
• Compressor stations in the energy sector.
• Raw-water pumps in treatment plants.
• Cooling-circuit pumps in power plants.
• Bulk-material conveyors in mining.
• Hammer crushers in stone-processing production.
• Ball mills in metallurgical operations.
• Extruders in chemical processing.
• Compression units in the paper industry.
• Rotary dryers in mineral processing.
• Batch mixing stations for building materials.
• Extraction fans in heavy industrial halls.
• Auxiliary rolling drives in steelworks.
• Process agitators in large tanks.

For OEM manufacturers of large technological units, the ability to connect additional temperature sensing and anti-condensation protection to their own control system is also decisive. 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor are available, simplifying integration into downstream automation.

Parameters that simplify drive design

When designing a new technological node, rated speed of 989 rpm, rated torque of 4828 Nm and starting current, which must fit the power distribution system, are monitored in addition to output. A starting torque ratio of 1,1 % and a breakdown torque ratio of 2,2 % assist with sizing starting systems in operations with frequent starts. This combination of properties makes the motor a solution for applications where stability is important even with fluctuating load.

If you need to incorporate a motor into a project where space, operating durability and service predictability are decisive, contact us.