High-voltage electric motor 630 kW, 991 rpm, 6 000 V, H17R 450-A-6-6

The copper rotor gives this solution the conditions for long operation under load where thermal resistance, low losses and controlled heating are decisive. The H17R 450-A-6-6 model delivers compact power of 630 kW for a 900 rpm electric motor in applications where smooth starting, stable characteristics and long service intervals are expected from the drive. The VYBO Electric design combines practical experience from large technological units with a solution that meets the requirements of 6 kV industrial drives.

Copper rotor and efficiency for continuous operation

In operations with continuous loading, every detail of the rotor matters. Copper strip in the cage helps keep losses under control while supporting thermal reserve during long-term running. This is precisely why this three-phase electric motor is suitable for technologies operating at high utilization and requiring predictable behaviour when power demand changes.

The energy profile is supported by IE4 Super Premium efficiency, which in practice translates into lower grid loading and better use of the power reserve of the entire line. In engineering units, pumping blocks or compressor assemblies, such an approach has a direct impact on long-term operating costs. For the operator, this means less waste heat and better conditions for stable drive operation.

Durability in environments where the motor must not slow down

For demanding conditions, special protection for demanding environments is available, helping protect the motor in operations with dust, humidity or a higher risk of occasional washdown. This solution is practical where technology cannot often be shut down for cleaning or additional maintenance. As a result, the drive remains a reliable element of production technology even under adverse ambient conditions.

The 450 mm frame size allows integration into robust bases and machine assemblies where a firm connection to the operating load is required. A six-pole electric motor with a rated speed of 991 rpm naturally fits drives that require higher torque at lower speeds. This is particularly advantageous for equipment that must not lose synchronization with the technological process.

Use in large production units

Factory operators and OEM manufacturers will appreciate that this high-voltage motor is suitable for applications with long daily loading and requirements for precise drive sizing. The design can take into account a weight of 5100 kg and a rotor moment of inertia of 16,0 kg·m², simplifying creation of a unit with the required dynamics and stability. In practice, it is a solution for technologies where the motor becomes part of the core production infrastructure.

Accessories support both diagnostics and protection of the technology in real operation. 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and a 3xPTC thermistor are available, simplifying monitoring of thermal condition and reducing the risk of unplanned shutdown.

Specific use in industrial practice

The motor is suitable for the following technologies:

• Supplying high-pressure process pumps in chemical production.
• Driving compressor units in gas stations.
• Main drive for crushers in cement-production lines.
• Connection to mills in raw-material treatment plants.
• Operation of flue-gas extraction fans in power-generation units.
• Driving blowers in metallurgical furnaces.
• Powering agitators in reactor tanks.
• Driving conveyors for bulk materials.
• Technological drive for drum dryers.
• Driving extruders in the plastics industry.
• Operating centrifuges in sugar refineries.
• Driving water pumps in treatment and filtration stations.
• Main drive for auxiliary rolling lines in metal processing.

Parameters that support long motor service life

Insulation class F together with temperature rise B create a sensible reserve for long-term operation in a stable thermal regime. Rated current of 73,7 A, power factor of 0,86 and rated torque of 6071 Nm provide designers with a basis for sizing both the power supply and mechanical connection to the technological unit. Combined with DE 6328-C3 and NDE 6328-C3 bearings, this creates a solution prepared for operations where more than nominal output is expected from the drive.

VYBO Electric builds on years of experience designing motors for demanding industry, and this 900 rpm electric motor is direct proof of that. If you need a drive for long-term production, take advantage of the offer and choose a solution that supports efficient operation and the stability of the entire technological unit.