Electric motor 315 kW, 990 rpm, 400 V / 690 V, H17RL 355X1-6 LV

Load fluctuations, long starts and limited space in the machine room are among the situations in which the stability of the entire line is decided. H17RL 355X1-6 is designed to support efficient operation of a low-voltage drive in such an environment and provide certainty for the 900-1000 rpm segment in industrial applications where both thermal reserve and efficiency are monitored. In practice, this is a low-voltage asynchronous electric motor that helps reduce operating losses while maintaining reserve for technological peaks.

900-1000 rpm segment in heavy-duty operation

The rated output of 315 kW gives this solution room for lines that cannot stop because of an undersized drive. The rated current Delta 400V is 558 A and the rated current Y 690V reaches 324 A, so the designer can specify the switchboard and protection devices more accurately. The rated speed of 990 rpm belongs to the 900-1000 rpm segment and contributes to stable operation of technological units with higher inertia. The rated torque of 3039 Nm provides a sufficient basis for applications with significant resistance at start-up. The ratio of starting torque Tst/Tn 130 percent and the ratio of breakdown torque Tmax/Tn 200 percent are important when designing drives where sensitive handling of the starting load is required. The ratio of starting current Ist/In 650 percent must be taken into account when sizing the supply network and soft-start elements. The power factor of 0.85 and efficiency of 96.1 percent support operation in which every kilowatt hour is monitored. This low-voltage asynchronous electric motor therefore naturally fits among energy-saving electric motors for demanding industrial deployment.

Compact solution with high output for technologies with limited space

The frame size of 355 mm provides a compact solution with high output while also creating space for precise mounting in the machine assembly. A weight of 2410 kg, external starting inertia of 310 kg·m2 and a moment of inertia GD2 of 38.4 kg·m2 are values that help when designing a drive with a quick response to load. The rotor cage with a robust aluminium cage supports mechanical durability during repeated starts. Insulation class F and temperature rise B create suitable reserve for operation in a more thermally demanding environment. This 6-pole electric motor is therefore suitable where the requirement for output, compactness and control of operating parameters is combined. VYBO Electric’s in-house research and development capabilities are reflected here in a design that takes into account the needs of long-term industrial operation.

Mounting design and construction for precise selection into the line

When modernising a drive, it is crucial that the motor fits into the existing machine layout without unnecessary modifications to the base. H17RL Compact PRO therefore offers mounting solutions suitable for IM B3, B35, B5 and V1, which makes selection easier when replacing older units. The modern design created using Hi-TECH technologies supports precise detail processing and a clear design for technical departments. Standard equipment includes a steel cooling cover, reinforced bearing mounting including steel shielding and high-temperature lubrication, a terminal box in a metal version and reinforced bearing shields for a more stable construction. Bearing DE 6322C3 and bearing NDE 6222C3 help maintain the required operational certainty under continuous load. The robust aluminium rotor cage completes an assembly that was created with an emphasis on operational reliability.

Applications in demanding manufacturing processes

H17RL 355X1-6 is suitable for the following operations:

• Main cooling circuit pumps in a steel rolling mill.
• Combustion gas fan in a cement kiln.
• Press drive in a chipboard production line.
• Main mixing unit in a chemical reactor with a viscous fill.
• Reduction drive of a belt conveyor in a quarry.
• Drying chamber fan in a paper machine.
• Extruder for continuous processing of plastic granules.
• Rotary drum in a mineral fertiliser line.
• Crusher for aggregates in variable-load operation.
• Compressor stage in a technological block of the air management system.
• Mill for fine grinding of raw materials in ceramic production.
• Winding machine in cables and conductors with high inertia.
• Drive unit in a sugar beet processing line.
• Centrifugal pump in an industrial water system.
• Transport drive in a sorting station with continuous operation.

Operational certainty during drive replacement and modernisation

VYBO Electric is a proven manufacturer and distributor that combines mass production with its own research and development in this segment. When replacing a drive, it is important that the new motor respects the voltage infrastructure, mechanical connection and expected starting ratios. H17RL Compact PRO therefore fits well into projects where long-term production stability, energy savings and a simpler service strategy are being addressed. The construction with a centre height of 355 mm, efficiency of 96.1 percent and power factor of 0.85 helps designers and maintenance teams set up operation with a lower thermal load on the network. If availability and rapid deployment into production are the priority, please request a quotation.

The H17RL 355X1-6 model is ready for operations that need a drive with output reserve without compromises in technical design. For customers who monitor long bearing life, precise mounting and energy balance, this is a solution that naturally supports everyday production practice. When stock availability and shutdown planning are important, this motor is suitable as part of the rapid replacement of critical drives.