High-voltage electric motor 1120 kW, 994 rpm, 6 000 V, H17R 500-B-6-6

The H17R 500-B-6-6 motor design is intended for environments where compact power is expected from the drive without unnecessary compromises in grid loading or the machine’s mechanical response. In practice, this 900 rpm electric motor operates at a rated speed of 994 rpm, while its characteristics remain suitable for heavy process units where smooth energy transmission and long-term operational stability are decisive. In the 1120 kW version, it represents a solution for large factories, process-media distribution systems and power technologies where consistent pulling force and reliable response to load changes are required.

Copper rotor in a six-pole drive for long service life

The core of the design is copper strip in the rotor cage, which helps keep losses low while withstanding high thermal stress during long operating cycles. This is where the copper rotor for long service life is particularly beneficial, especially in highly loaded drives where reducing downtime and repeated maintenance intervention is important. In heavy industry, this approach is valuable for pumps, compressors and process conveyors because it reduces the risk of rotor degradation during frequent starts and variable power demand.

A three-phase electric motor with this concept is suitable for applications requiring precise coordination with line technology and energy-flow control. The designation six-pole electric motor here describes an operating mode that helps achieve the required speed without unnecessarily loading the machine’s mechanical connections. In practice, this is valued by operators dealing with long production shifts, seasonal peaks and continuous operation with high thermal load.

IE4 efficiency for demanding industrial drives

IE4 Super Premium efficiency is important wherever the energy balance is monitored over the whole year and every kilowatt-hour contributes to production costs. High efficiency is particularly noticeable in applications with long daily running times because the motor converts electrical consumption into mechanical power with lower losses and a more favourable thermal profile. This is a practical solution for process drives that require both power reserve and more economical operation.

This design also supports drive technology in segments where power requirements change according to the production batch or pressure in the technological circuit. Thanks to a power factor of 0,86 and efficiency of 96,4 %, the motor performs well in projects where optimization of transformer fields and power-supply stability in large operations are addressed. For the operator, this means less unnecessary heat around the motor and better conditions for long-term operation of the entire assembly.

Frequency selection option for grid conditions

The frequency selection option gives designers room to adapt the motor to the specific grid, production standard and export use of the machine. In practice, it is important that the solution is also available for 60 Hz, simplifying integration into lines intended for different geographical markets or technological units with different operating standards. A high-voltage electric motor with this flexibility therefore connects more easily to distribution systems requiring precise coordination of speed and torque profile.

Rated torque of 10761 Nm supports starting and stable work on a shaft with high inertia. Rotor moment of inertia of 46,0 kg·m² helps balance dynamic changes, which is particularly beneficial for machines with frequent transitions between load and no-load operation. This 900 rpm electric motor therefore performs well in technologies where smooth power increase and controlled drive behaviour under load are decisive.

500 mm frame size for heavy-duty operating assemblies

A 500 mm frame size provides a firm basis for installation into robust machine frames and long-term operation in environments with vibration, dust and higher temperatures. A weight of 7000 kg supports assembly rigidity and helps stabilize the entire drive during demanding starting and continuous running. Insulation class F together with temperature rise B create reserve capacity for operation in applications where heat accumulates over long periods and reliable winding protection is required.

Available measurement and motor-condition monitoring are also important for maintenance. The design with 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor makes it possible to monitor operating conditions more effectively and respond to deviations before they develop into downtime. VYBO Electric operates according to ISO certificates, which in industrial projects provides practical support for repeatable manufacturing and delivery documentation.

Use in processes where continuous operation is decisive

The motor is used in ore-crushing mills, high-flow fans, main circulation pumps, compressors for process air, extruders, agitators in chemical production, conveying systems with high inertia, water pumping stations, metallurgical blowers, dryers for bulk materials, heavy-duty belt conveyors, large-format grinding machines and drives for rolling units. For these applications, not only nominal force but also the ability to maintain a stable operating mode under prolonged load and repeated starts is decisive.

H17R Compact PRO-HV for long-term reliability in heavy industry

The H17R Compact PRO-HV series is intended for operators who need one motor for multiple operating scenarios without complicated mechanical adaptation. VYBO Electric builds this solution on reliable workmanship, consistent documentation and parameters that support the service life of the entire drive. If you need a drive for a production line, power unit or technology with high consumption, take advantage of the offer and choose a solution with reserve capacity for long-term output and lower operating costs.