High-voltage electric motor 450 kW, 1489 rpm, 6 000 V, H17R-355-C-4-6

Model H17R-355-C-4-6 from VYBO Electric is designed for applications where compact output under high load is expected from the drive. This 1400 rpm electric motor with an output of 450 kW works as a reliable component of technological systems where downtime translates directly into production costs. Thanks to its robust concept and suitably selected rotor dynamics, it helps maintain stable operation even where service is continuously uninterrupted.

For large factories and OEM assemblies, it is important that a three-phase electric motor can respond to real operating conditions without unnecessary corrections in control. In this solution, the high-voltage electric motor is combined with parameters that simplify the design of drive technology for conveyors, pumps, compressors and process units. Rated torque of 2886 Nm supports smooth starting of the load, while rated current of 51,1 A can be incorporated precisely into switchboard project documentation.

Copper rotor and long service life in continuous operation

The main benefit of this design is based on copper in the rotor, which helps reduce electrical losses while withstanding thermal stress during long working cycles more effectively. Copper strip in the rotor cage provides stable behaviour under repeated load and, from a maintenance perspective, supports a longer service period. For the operator, this means a lower risk of unwanted line interventions, while for the OEM manufacturer it means easier integration into equipment with higher availability requirements.

In practice, this four-pole electric motor is used where output must be maintained without abrupt changes in speed. A rated speed of 1489 rpm provides a suitable basis for applications with indirect transmission, gearbox drives and processes where torque stability across the entire operating range is monitored. A power factor of 0,89 also supports sensible network loading and helps limit unnecessary reactive components in the system.

IE4 Super Premium efficiency for demanding industrial drives

Efficiency of 95,6 % gives this solution room to save energy in operations where the motor runs under high daily load. The IE4 Super Premium class is particularly relevant to lines with long running times because every kilowatt-hour becomes visible in the annual cost balance very quickly. Temperature rise B and insulation class F create reserve for environments with higher thermal loads and drives operating close to rated limits.

Production plants will also appreciate the operating predictability provided by rated torque of 2886 Nm and rotor moment of inertia of 7,1 kg·m². This combination helps start technological equipment without excessive shocks to the mechanical system. A starting-current ratio of 6,2 % supports the design of a soft start or frequency converter according to the required control mode.

Frequency selection for different networks and export machinery

The option to select the frequency makes deployment easier in projects aimed at multiple markets or operating under different network conditions. A version available for 60 Hz simplifies standardisation of assemblies for export lines while leaving sufficient room in converters and switchboards for precise operating settings. For the designer, this means fewer compromises in machine dimensions and the required dynamic behaviour of the complete drive.

A frame with a shaft height of 355 mm and a weight of 3340 kg provides a solid foundation for integration into large technological systems. DE bearing 6322-C3 and NDE bearing 6322-C3 support long-term mechanical stability in operation with higher radial loads. From a maintenance perspective, available accessories including 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and 3xPTC thermistors are also advantageous, so thermal monitoring can be configured according to application criticality.

Measurement, protection and service reliability during long cycles

In continuous production, the ability to detect a change in the winding or bearing condition early is decisive. Temperature diagnostics via PT100 and protection via PTC help operators respond before a small deviation becomes a shutdown. The anti-condensation heater is particularly useful in environments where the motor remains stopped for longer periods between starts and moisture can affect insulation condition. Combined with the certification framework and controlled manufacturing by VYBO Electric, this is a solution suitable for standardised series projects and individual deliveries alike.

The motor’s performance reserves are useful in applications with continuous load, frequent mode changes or high availability requirements. The following areas of use show where its design and operating parameters perform best.

• Main centrifugal pumps in water-treatment plants.
• Process compressors in chemical production.
• Blowers for cement-plant filters.
• Mills for processing mineral raw materials.
• Extruders in plastics production.
• Rolling stands in metallurgical lines.
• Conveyor systems for bulk materials.
• Pumping units in petrochemical operations.
• Mixing stations for large-volume reactors.
• Ventilation units for industrial halls.
• Dewatering pumps in the mining sector.
• Winding equipment for cable and film lines.

H17R Compact PRO-HV in this configuration gives operators and equipment manufacturers confidence that the drive will be prepared for long-term load without unnecessarily increasing energy demand. If you need a solution for a high-power project, take advantage of the offer and choose a motor that will support reliable operation of the entire technology.

ISO certificates and controlled manufacturing processes are part of the standard applied by VYBO Electric to deliveries for industrial deployment.