Electric motor 800 kW, 990 rpm, 400 V / 690 V, H17RL 450X3-6 LV

For production operations that require higher reliability under long-term load, the H17RL 450X3-6 model is designed as a solution for the range 900-1000 rpm. In practice, this means that the 400 V / 690 V electric motor can naturally fit into drives for demanding applications, where stable torque, thermal reserve and trouble-free integration into the existing low-voltage infrastructure are monitored.

The design is based on a strong cast-iron frame, which supports a long service life in environments with higher vibration and continuous load. The H17RL Compact PRO technology from VYBO Electric is intended in this segment for operations that need an electric motor for low-speed applications with precise running and reserve for starting as well as longer duty cycles. Standard equipment includes a steel fan cover for better protection of the cooling section, reinforced bearings protected by a steel cover, grease resistant to high temperatures, a metal terminal box with a more robust design and reinforced bearing shields for higher mechanical durability.

Stable operation in the range 900-1000 rpm for industrial lines

Rated output of 800 kW and rated speed of 990 rpm create parameters suitable for applications where smooth power transmission and reliable starting under load are decisive. Rated torque of 7717 Nm helps maintain stability in technological units that work with higher inertia, while the starting torque ratio Tst/Tn 110 percent and the maximum torque ratio Tmax/Tn 200 percent support starting even with a demanding mechanical characteristic. The starting current ratio Ist/In 700 percent must be taken into account when designing the power supply, especially when modernising operations with a sensitive grid.

In terms of electrical efficiency, the efficiency of 96.1 percent and power factor of 0.86 offer interesting scope for optimising operating costs, especially for drives with long operating hours. The three-phase 400/690 V motor in this design supports operations that monitor not only performance, but also the energy profile of the whole technology. For projects where every kilowatt hour counts, stability of the curve at the rated point and consistent behaviour under load are also important.

Design and equipment for long-term operational reliability

Insulation class F together with temperature rise B gives the operation room for safe thermal operation in applications with higher thermal stress. The copper strip rotor cage supports robust starting and durability in repeated cycles. Bearing DE 6328C3 and bearing NDE 6328C3 are selected with an emphasis on mechanical precision and long-term operating stability. Weight 5250 kg corresponds to a robust industrial design that is important in applications with high dynamic load.

For operations requiring additional monitoring, accessories are available in the form of 6x PT100 in the winding, PT100 in the DE and NDE bearing, anti-condensation heating and 3x PTC. External starting inertia 787 kg·m2 together with moment of inertia GD2 80.0 kg·m2 are values that help when designing the starting mode and assessing the behaviour of the drive in real technology. VYBO Electric develops and manufactures these motors specifically for European industry, especially for Western Europe, which is reflected in the design and in the emphasis on compatibility with common industrial practice.

Customisation options for demanding operating conditions

• Suitable for pumps with a higher head in technological units.
• Usable for compressors in continuous industrial duty.
• Deployment in mills for processing bulk raw materials.
• Deployment in conveyor belts for heavy material flows.
• Suitable for crushers in the stoneworking and mining sector.
• Usable for mixers in chemical production.
• Deployment in extruders for the plastics industry.
• Deployment in cooling tower fans.
• Suitable for rolling mills in metallurgical operations.
• Usable for drying drums in material processing.
• Deployment in pressing lines for heavy production series.
• Suitable for dewatering units in the paper industry.
• Usable for homogenisation units in cement plants.

For operations with different levels of environmental protection, it is possible to choose a version with IP56, IP65, IP66 or IP67 protection, depending on the specific installation conditions. This option to adapt to the environment makes use in plants easier, where the requirements for dust tightness, resistance to splashing water or greater protection during washing of the technology change. In Central Europe we are the largest company in our sector, which in practice is reflected in a wide professional range and experience with projects for modernisation and drive replacement.

400 V / 690 V electric motor for modernisation in heavy industry

In industrial enterprises, technological supply and manufacturing plants, it is important that the drive fits into the whole without unnecessary compromises in operating logic. That is why the H17RL Compact PRO is seen as a solution for heavy industry, where stable performance, solid construction and predictable behaviour during long shifts are expected from the electric motor. For projects focused on energy efficiency, the 96.1 percent efficiency combined with thoughtful mechanical design is also an advantage.

VYBO Electric bases this range on its own development and on the use of premium materials that support consistent performance in demanding applications. If it is a drive that should serve a production line, conveyor system or technological unit with higher requirements for starting and operational stability, the H17RL 450X3-6 offers a technical framework suitable for long-term operation. Send us an enquiry for the H17RL 450X3-6 in the range 900-1000 rpm.