Electric motor 280 kW, 2976 rpm, 6000 V, H17R-315-E-2-6 MV

In heavy-duty operation, what matters is whether the drive can handle a long load without unnecessary outages, and it is precisely for this purpose that the H17R-315-E-2-6 with an output of 280 kW is designed. The motor operates in the speed range of 2900-3000 rpm, so it fits well into applications where stable speed, high efficiency and a sensible operational reserve are required. As a three-phase 6 kV motor, it provides a suitable solution for plants with medium-voltage infrastructure and at the same time supports the efficient operation of a medium-voltage drive in technologically demanding lines.

Speed class 2900-3000 rpm for stable performance in industry

This speed range is practical where direct connection to process units with higher torque demand is required and where the predictable response of the drive is important. Nominal speed of 2976 rpm, nominal torque of 899 Nm, nominal current of 31.6 A, power factor of 0.9 and efficiency of 95 % create a combination that helps keep operation smooth and energetically sensible. Although this is a medium-voltage asynchronous electric motor, the design remains practical for servicing and long-term deployment.

The motor uses insulation class F, temperature rise B and a rotor with copper bars, which supports durability under continuous load. The rotor inertia of 2.7 kg·m² is suitable for applications where starting and speed stabilisation need to be handled sensitively. Both the DE bearing 6317-C3 and the NDE bearing 6317-C3 are selected with robust industrial deployment and longer service life in demanding operation in mind.

The 315 mm frame design helps with both modernisation and drive replacement

The 315 mm frame size, that is the frame dimension according to IEC, makes integration into existing machine assemblies and modernisation projects easier. The weight of 2950 kg confirms the massive construction, which is desirable for medium-voltage drives for both mechanical stability and vibration damping. Customers dealing with the replacement of an older drive are also supported by VYBO Electric technical consultancy, as the motor selection can be matched to the supply, environment and operating mode requirements.

The equipment includes PT100 winding and bearing sensors, an anti-condensation heater and three PTC thermistors, so the motor is ready for thermal condition monitoring and operation in environments with an increased risk of moisture. In practice, this helps with reliable restarting after shutdown and with checking component condition during uninterrupted production. For operations with higher protection requirements, adaptation to the environment can also be arranged.

Typical use in heavy-duty technology and in-house infrastructure

The motor is suitable where high output, convincing mechanical resistance and long-term availability of a replacement solution are required. Thanks to its parameters and robust construction, it is suitable for the following applications:

• Main pump drives in chemical plants.
• Compressor units for process air in production.
• Fans for large cooling circuits.
• Flue gas desulphurisation fans in the energy sector.
• Raw material grinding mills in cement plants.
• Hammer crushers in mining and quarries.
• Rolling mill units in metallurgical lines.
• Extruders in polymer processing.
• Press stations for heavy materials.
• Conveyor drives in raw material warehouses.
• Pumping stations for water treatment.
• Machine rooms with medium-voltage supply.
• Process agitators in large-capacity tanks.
• Compaction and homogenisation lines.
• Standby drive units for critical production.

Why the H17R Compact PRO-MV series is suitable for strategic operations

The H17R Compact PRO-MV series from VYBO Electric is based on in-house development and uses premium materials to meet industrial companies’ requirements for reliability and service readiness. In Central Europe, it is a brand with an exceptionally strong position in the sector, which supports the availability of technical facilities, spare parts and selection advice. In conclusion, stock availability and express delivery can significantly shorten downtime, so check the suitability of the motor for your application.