Electric motor 710 kW, 2981 rpm, 6000 V, H17R-400-D-2-6 MV

A standard low-voltage drive under a similar load often reaches the limits of efficiency, current stress and ease of servicing, so the H17R-400-D-2-6 with an output of 710 kW is designed as a more reliable answer for operation in the 2900-3000 rpm range. This 6000 V electric motor delivers a rated speed of 2981 rpm, rated current of 78.5 A and rated torque of 2275 Nm, so it covers the demands of smooth starting as well as long-term load in technologies with high operational continuity.

Stable output for heavy-industry drives

The design of this 6 kV three-phase motor is based on the requirements for a long service life in heavy-duty operation, where not only output matters, but also thermal resistance and vibration control. Efficiency of 96.1 % and power factor of 0.91 help reduce operating losses and improve use of the supply network. Insulation class F combined with temperature rise B provides a reserve for demanding duty cycles, while copper bars in the rotor cage supports high mechanical resistance and stable electrical properties under repeated loading.

Parameters that support long-term operation

• Rated current of 78.5 A corresponds to a medium-voltage application with controlled electrical stress.
• Rated speed of 2981 rpm belongs to the 2900-3000 rpm segment and suits drives with higher process speed.
• Rotor inertia of 5.3 kg·m² helps with the design of starting and control of system dynamics.
• Tst/Tn 0.77 % and Tmax/Tn 3 % should be assessed within the specific technology and operating profile.
• Ist/In 7 % helps estimate the starting surge when sizing the supply and protection.
• 6319-C3 bearings on both the DE and NDE sides support robust mounting for industrial deployment.

Precise sizing for 2900-3000 rpm in demanding operation

In this speed segment, the motor is suitable where fast drive response is important, while predictable behaviour under load changes is also required. A weight of 3950 kg and a 400 mm frame require careful handling during installation, but they also signal a massive design intended for industrial applications with high strength demands. Equipment including PT100 winding and bearing sensors, an anti-condensation heater and a set of three PTC thermistors improves monitoring of the thermal condition and helps prevent unplanned downtime.

Use in process systems with high load

The H17R-400-D-2-6 model is suitable for pump systems, compressor stations, fan blocks, conveyor lines, mixing equipment, metallurgical auxiliary drives, crushing and grinding units, power systems, water management technologies and the reconstruction of existing machine halls, where high reliability and compatibility with medium-voltage infrastructure are required. Thanks to its design for the high-speed segment and robust construction, it is also suitable for projects where an older motor is being upgraded to a more powerful and more energy-efficient equivalent.

VYBO Electric uses in-house development and many years of experience in the design of motors for industry, with an emphasis on premium materials, technical precision and reliable purchasing for B2B customers. If you need a motor for a demanding process unit, this type offers a practical solution with a good balance of output, efficiency and service monitoring, so request a quote.