High-voltage electric motor 315 kW, 737 rpm, 6 000 V, H17R 400-A-8-6

The 700 rpm electric motor in the H17R 400-A-8-6 version delivers 315 kW to operations where compact power, stable running and reserve capacity for long loading are decisive. This high-voltage electric motor from VYBO Electric is intended for large factories and OEM units where repeatable operation without unnecessary intervention in production is expected from the drive. In this class, it is suitable wherever the drive must operate reliably at rated speed while maintaining energy discipline.

Copper rotor extends service life under continuous load

The greatest operating advantage is copper strip in the rotor cage, which helps keep losses low while withstanding higher thermal stress during starts and steady operation. In practice, this means a lower risk of winding overheating and a longer service interval, which directly improves availability in large production lines and heavy technological assemblies. This is precisely why this three-phase electric motor is suitable wherever the drive must operate in long cycles without fluctuations in load torque.

The design also reflects a philosophy for demanding drive technology. The eight-pole version helps maintain the required speed range for applications that need calm starting and precisely controlled output without abrupt changes. A power factor of 0,81 supports sensible power-supply sizing, while 95 % efficiency reduces energy losses during long-term operation. In environments where every kilowatt-hour enters the cost calculation, the drive therefore becomes part of optimizing the entire line.

IE4 efficiency reduces losses in large drives

IE4 Super Premium efficiency helps in applications that run at full duty every day and require control of operating costs. High efficiency is reflected not only in tables but especially in the fact that the drive places less load on the grid, generates less thermal stress around the machine and fits better into modernized production technologies. For large operators, this means room for more stable production planning and more precise management of energy flows in the plant.

A shaft height of 400 mm provides a structural basis for robust installation in units where a firm connection between the motor and downstream equipment is important. Rated torque of 4082 Nm is suitable for tasks requiring pulling force without jerking or unnecessary slipping under load. Rated current of 39,6 A also makes it possible to design the switchgear and protective elements sensibly for the specific line.

Frequency selection option simplifies use in international projects

The frequency selection option expands motor usability in projects where different grid standards and rated-speed requirements meet. A version supporting 60 Hz also simplifies integration into technologies for export lines, modernized production blocks and equipment intended for different regions. For an OEM manufacturer, this means fewer design changes and faster preparation of equipment for a specific customer.

The internal design meets the requirements for stable operation under high load. Insulation class F together with temperature rise B gives the operation room for long-term thermal loading, while 6326-C3 bearings on both the DE and NDE sides support precise rotor running. Rotor moment of inertia of 13,0 kg·m² is important when designing starts and assessing drive dynamics in assemblies with higher resisting torque.

For technologies requiring precise starting and reliable monitoring

VYBO Electric also supplies optional monitoring and protection for this motor, which assists operation during continuous shifts. 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor are available, giving operators a better overview of temperature and the condition of critical points during starting and under load. Such a solution is particularly practical where the motor is located in a harsher environment or operates in a mode where downtime is expensive.

• Pumping stations for process water in heavy manufacturing.
• Fan units for dust extraction in metallurgical operations.
• Chamber mills in cement-production lines.
• Conveyor systems for bulk materials in quarries.
• Compressor assemblies for plant power utilities.
• Extruders in the plastics and rubber industries.
• Mixers and mixing equipment in high-capacity chemical operations.

Parameters prepared for long operating cycles

A weight of 4020 kg and robust mechanical construction give the motor the stability required by large technological units and demanding installation conditions. With a correctly designed base and connection to the driven equipment, this weight translates into lower vibration and better assembly rigidity. This is important in applications where the motor operates at full duty for long periods and where mechanical stability has a direct impact on the service life of the entire system.

A rated speed of 737 rpm combined with high torque creates a suitable basis for technological tasks that do not require high-speed operation but do require reliable pulling force. The result is a drive that fits production lines with continuous operation, heavy conveyors and equipment with high inertia. For projects where long-term return on investment is monitored, take advantage of the VYBO Electric offering and choose a solution combining a copper rotor, IE4 Super Premium efficiency and practical readiness for different frequency modes.

VYBO Electric also operates within an ISO-certified environment, which is an important factor in industrial procurement when assessing manufacturing discipline and repeatability of deliveries.