Medium and High Voltage Electric Motor 1850 kW H27R-HD-Modular

6 000 V power supply:

Name	Slang speed	Exact speed	Syn. speed	Poles	Voltage	Frame	Cooling	Type
Medium/high voltage motor 1850kW	700 rpm	743 rpm	750 rpm	8 poles	6000 V	630 mm	IC611	H27R 6301-8

Choose voltage and speed first

For a 1850 kW medium and high voltage electric motor, the first step is to match the network and the required nominal speed to the process. The H27R-HD-Modular series offers this power rating in 6000 V and 10 000 V versions, with 3300 V and 11 000 V available on request. Select the pole count to suit the duty point: 2POL approx. 2900-3000 rpm, 4POL approx. 1400-1500 rpm, 6POL approx. 900-1000 rpm, 8POL approx. 700-750 rpm, 10POL approx. 550-600 rpm and 12POL approx. 450-500 rpm. These are fixed nominal speed groups, not a continuously adjustable range.

Application suitability in steel and metallurgy

This power class is commonly considered for steel and metallurgy process drives where a robust three-phase electric motor is needed for continuous operation. Typical applications include rolling mill auxiliaries, conveyor systems, process pumps, forced-draught and extraction fans, compressors and other heavy industrial machinery. The exact variant should be chosen according to load profile, starting requirements and any requirement for frequency converter operation, which can be met when the motor is correctly configured for the application.

Construction and operating considerations

The modular design supports project-specific technical configuration across mounting forms, cooling and monitoring options. Key features include a welded steel frame, IP55 enclosure, IC611 air-to-air cooling, insulation class F, temperature rise class B and S1 continuous duty. PT100 sensors for stator and bearings, 3 PTC thermistors and a 230 V space heater support condition monitoring and protection. Efficiency can reach 97.4 %, depending on the selected configuration.

Ambient conditions of -20 °C to +40 °C and altitude up to 1000 m a.s.l. are covered by the standard specification. See the complete H27R-HD-Modular range of medium and high voltage electric motors to compare variants for your process, and request a quote for the most suitable drive solution.