High-voltage electric motor 250 kW, 2975 rpm, 6 000 V, H17R-315-D-2-6

The design of the H17R-315-D-2-6 motor is intended to help keep energy consumption under control at medium to high loads. The 3000 rpm electric motor version with an output of 250 kW is suitable where stable performance, sensible thermal behaviour and long operation without unnecessary downtime are expected from the drive. In practice, this is particularly appreciated by operations with precisely planned production cycles that monitor the cost of every kilowatt-hour.

In the drive segment for medium-sized and large factories, IE4 Super Premium efficiency has a direct impact on operating economy. In demanding industrial drives, it is particularly evident where the motor runs for long hours in steady-state operation and where even small differences in losses make a noticeable difference to energy bills. In combination with a power factor of 0,89, the entire power-supply and switching section of the drive can be designed more effectively.

H17R Compact PRO-HV from VYBO Electric is among the solutions that combine a high-voltage design with sensible dimensions for installation in existing technological systems. The 6000 V electric motor in a 315 mm frame size provides a space-saving solution for applications where it is important to fit full output into a compact package without compromising the machine-room layout. Such a solution fits well into drive technology that works with limited space and high requirements for service access.

3000 rpm electric motor for stable operation of production lines

The rated speed of 2975 rpm provides a basis for smooth starting and steady-state operation in technological systems that must not fluctuate in dosing or material transport. A two-pole electric motor in this category is often selected where a fast drive response and precisely adjustable coupling to the operating load are required. Thanks to a torque of 803 Nm, the motor performs well in applications with higher system inertia.

In practice, this high-voltage electric motor is suitable for drives that need to maintain output over the long term while withstanding temperature fluctuations. Insulation class F together with temperature rise B provides reserve for operating modes in which the load changes during shifts or when the technology is started. The rotor cage made of copper strip helps transfer energy to the rotor and supports motor behaviour under load.

IE4 Super Premium efficiency for lower operating losses

Efficiency of 94,9 % is particularly beneficial in continuous production, where the motor becomes part of the daily cost balance. In such applications, it also matters how the motor behaves under partial load and whether it maintains efficient operation over longer operating cycles. Rated current of 28,6 A also makes switchboard and drive-protection design easier.

When reliability is considered in the design, a breakdown-torque ratio of 2,9 % and a starting-current ratio of 6,3 % help predict behaviour during starting and overload. Conversely, the starting-torque ratio of 0,64 % indicates that the motor is best used where the starting mode is part of a carefully designed drive system. This allows the designer to set the frequency converter or related starting components more precisely.

315 mm frame and compact voltage solution for modern technologies

The 315 mm frame size offers a sensible compromise between output and installation space. In larger operating systems, it is important that the motor can be installed without modifications to the foundations while remaining accessible for inspection of the bearings and connection points. A weight of 2900 kg and rotor moment of inertia of 2,400 kg·m² indicate that this is a machine for firmly designed installations with clearly defined mounting.

In technology where precise operation of conveyors, pumps or compressors is monitored, bearing behaviour is also important. DE bearing 6317-C3 and NDE bearing 6317-C3 support operation under loads that vary according to the technological mode. These components are especially important when the motor is used in environments with higher requirements for production continuity.

Frequency selection for different networks and applications

The motor design takes into account that not every operation uses the same frequency regime. Availability for 60 Hz as well makes deployment easier in international projects, deliveries for export lines and equipment with different network standards. In practice, this simplifies selection when designing new systems and modernising older lines.

H17R-315-D-2-6 is therefore also suitable for applications requiring rapid adaptation of operation without changing the basic drive concept. With the correct design, the high-voltage electric motor will provide stable running under different operating conditions while leaving room for consumption control.

Accessories and monitoring for long-term reliability

For demanding operation, it is important that the operator has an overview of the motor’s thermal condition. The equipment includes 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and 3xPTC thermistors. Such a solution helps monitor operation during shutdown periods and during starts after a longer break.

Combined with the ISO certificates of the manufacturer VYBO Electric, this provides a basis for deployment in environments where traceability and a uniform manufacturing standard are required. For engineers and designers, it is important that the motor can be integrated into a wider monitoring system without unnecessary changes to the machine concept.

Applications for demanding industrial operations

This 3000 rpm electric motor can be used in the following technological systems:

• Circulating-water pumps in power-generation units.
• Compressed-air compressors in plants with continuous production.
• High-pressure process pumps in the chemical industry.
• Conveyor lines for bulk materials in cement plants.
• Mills for crushing raw material in mineral processing.
• Main-draught and process ventilation fans.
• Extruders in plastics processing with long operating cycles.
• Rolling mills in metallurgical operations.
• Centrifugal separators in food production.
• Mixing equipment for chemical reactors.
• Briquetting presses in biomass processing.
• Enclosed geared conveyors in logistics centres.
• Fan units for cooling towers.
• Compression stations for technical gases.
• Screw conveyors in recycling lines.

If you need a motor for stable operation, high efficiency and easier integration into the project, order H17R-315-D-2-6 in good time. Availability and technical interfaces are best addressed in practice before the installation plan is finalised.