High-voltage electric motor 250 kW, 741 rpm, 6 000 V, H17R 355-C-8-6

The 700 rpm electric motor in the H17R Compact PRO-HV class is built around high power density, which is valued by any production line with limited machine-room space. The H17R 355-C-8-6 model with an output of 250 kW provides reserve capacity for technological units where continuous operation, precise starting and stable torque across the entire working range are expected.

Compact 6 kV 700 rpm electric motor for industrial use

When designing a drive, every metre of switchgear and motor hall space matters, so the 6000 V electric motor in this assembly is advantageous wherever full output is required in an H315 to H560 frame without unnecessarily enlarging the installation. In practice, it is a solution that fits modern lines, pumping stations and technological nodes in heavier industry. The eight-pole electric motor also supports smooth operation of equipment that must work with sensibly controlled dynamics and without impact loading of the grid.

The copper rotor extends the operating interval between service interventions because the copper alloy helps reduce losses while withstanding higher thermal stress during long-term loading. For operators of large factories, it is important that the design remains reliable even with frequent load changes and starts after shutdown. This solution is also valued by OEM manufacturers of large technological units who need a stable component in an assembly with precisely planned service life.

A drive that reduces demands on space and maintenance coordination

In many cases, the success of a project depends on combining output and compactness, especially where one unit must replace a larger and less efficient drive. This 700 rpm electric motor therefore performs well in projects involving refurbishment of existing technology or capacity expansion without intervention in the entire layout scheme. The three-phase electric motor also simplifies integration into standard industrial infrastructure and simplifies power-supply design within drive technology.

The frequency selection option provides room for use in equipment with different energy standards, including operations using 60 Hz. This flexibility is particularly practical for export projects where an OEM partner needs one motor design for multiple markets and fewer variants in inventory. This shortens engineering time and simplifies approval of the complete drive.

Precise operating control and lower risk of unplanned downtime

VYBO Electric supplies solutions backed by ISO certificates, which is an important signal in industrial procurement when selecting a motor for critical operation. Accessories are also available to help monitor motor condition in real time and protect the investment during long-term use. The equipment can include 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor.

Use in demanding operations and technological units

The design with a weight of 3430 kg, efficiency of 94,8 % and power factor of 0,79 is suitable for equipment where long-term energy balance and load stability are monitored. Insulation class F together with temperature rise B provides sufficient room for operation in modes that smaller drives would handle only with reserves. 6322-C3 bearings on both the DE and NDE sides support reliable running under high radial and axial demands.

The assembly is used in aggregate crushers, belt conveyors for raw materials, main extraction fans, compressor stations, cement-mixture mixers, cooling-water pumps, plastic granulators and drives for rolling peripherals. For each of these tasks, not only the force itself but also the ability to keep operation in a stable rhythm without process fluctuations is important. With rated torque of 3222 Nm and rotor moment of inertia of 8,2 kg·m², the motor is prepared for the load imposed by large technologies every day.

Project solution for OEM and production-line modernization

OEM manufacturers value being able to design one motor for multiple machine configurations while maintaining repeatable output in series production. The copper rotor cage also helps in this respect, supporting efficient conversion of energy into mechanical work while contributing to stable thermal balance under long loads. Rated current of 32,3 A and a starting current ratio of 4,9 % give the designer room when sizing the power supply and protection.

If you are replacing an older drive or designing a new technological branch, this model offers a combination of space efficiency, output and long-term operational reliability. For further technical consultation and a quotation, contact us.

Dimensions and weight when planning installation

When installing in production halls, it is important to allow space for handling, servicing and installation of downstream components. A weight of 3430 kg requires precise planning of lifting equipment, the base frame and access to bearing locations. Rotor moment of inertia and the frame design assist when designing starting where process stability must be maintained even with frequent equipment starts.