Electric motor 1000 kW, 1490 rpm, 400 V / 690 V, H17RL-450X3-4 LV

In the event of drive faults, not only loss of output often occurs, but also unnecessary downtime of the entire line, load fluctuations and more demanding start-up of the technology. It is precisely in such an environment that the 1400-1500 rpm segment has practical importance, because it makes it possible to design efficient operation of a low-voltage drive with sufficient reserve for both start-up and steady running. The H17RL-450X3-4 model from the H17RL Compact PRO range by VYBO Electric is intended for OEM solutions, integrators of drive systems and the energy sector alike, where reliability, service availability and long-term operational discipline are monitored.

1400-1500 rpm segment for stable operation in demanding applications

For applications with higher inertia and repeated loading, it is crucial how the motor handles acceleration, breakaway torque and continuous operation under changing load. The low-voltage asynchronous electric motor H17RL-450X3-4 operates with an output of 1000 kW, which gives designers room to size the drive without unnecessary oversizing of auxiliary components. The Electric motor 400 V / 690 V is suitable for assemblies where compatibility with the mains, the starting arrangement and the energy balance requirements of the operation are being addressed.

The rated current at the Delta 400V connection reaches 1703 A and at the Y 690V connection 990 A, so the design of the switchboard, switching equipment and protective devices can be based from the outset on a real operating mode. The rated speed of 1490 rpm supports use in technologies where smooth power transfer to pumps, fans, conveyors or mixers is expected. The rated torque of 6409 Nm provides reserve both at start-up and during short-term increases in resistance of the mechanical system.

Strong cast-iron frame and mounting design for line integration

The construction with a centre height of 450 mm uses a strong cast-iron frame, which is suitable for long operating cycles and for applications where mechanical strength of the frame and mounting stability are monitored. In practice, this is appreciated especially by equipment assemblers who need an electric motor for universal industrial applications without complications in alignment or in transferring vibrations to the substructure. The choice of mounting design in IM B3, B35, B5 and V1 versions makes it easier to incorporate the motor into existing foundations, gearbox assemblies and vertical systems.

The modern design created using Hi-TECH technologies supports more precise processing of critical parts and aligns appearance with technical function. From the designer’s point of view, this is a low-voltage asynchronous electric motor that is well suited where not only output is monitored, but also space layout and service access. The weight of 5500 kg corresponds to a robust design that, in heavy-duty operation, results in smoother running and better damping of mechanical stress.

Motor design for long-term operational reliability

Standard equipment includes a cooling cover made of steel, reinforced bearing support including steel cover and high-temperature lubrication, a terminal box in metal design and reinforced bearing shields for a more stable construction. The rotor cage made of copper strip helps handle more demanding starts and improves behaviour under repeated loading. The DE and NDE bearings in the 6328C3 design are selected with heavy-duty applications and precise rotor guidance in mind during operation.

Heavy Duty process performance for energy, OEM and heavy industry

Electric motors of this class belong to the Heavy Duty process performance segment, where the drive is expected to offer long-term durability under cyclical and continuous load. Efficiency of 96.3 % and power factor of 0.88 help optimise consumption in large installations, where every kilowatt hour is monitored and larger operations also address sensible sizing of compensation. Insulation class F and temperature rise B support use in environments where thermal reserve is important for winding life.

• Pump sets for raw water in power units use a stable torque curve and durability during long operation.
• Ventilation systems in metallurgical operations require reliable starts and precise speed holding under variable flow.
• Conveyor lines for bulk materials benefit from the high rated torque at repeated starts.
• Mixing reactors in the chemical industry need robust support and reserve in the starting mode.
• Crushing and sorting equipment in stone processing works with significantly shock loading and impact torque peaks.
• Compressor systems in heavy industry require stable operation under long-term load and limited thermal stress.
• Rolling and feed mechanisms in metallurgy use a high mechanical reserve under irregular power demand.

The external starting inertia of 654 kg.m2 together with the moment of inertia GD2 of 64.0 kg.m2 provide a basis for more precise calculation of starting regimes and for coordination with inverters, switchboards or soft starting. The starting torque ratio Tst/Tn 110 % is suitable for technologies that need a sure breakaway from standstill, while the breakdown torque ratio Tmax/Tn 220 % provides reserve during short-term increase of mechanical load. The starting current ratio Ist/In 750 % is an important input for the design of protective elements and for checking voltage drops in low-voltage infrastructure.

Thanks to the background of the VYBO Electric brand, this Electric motor 400 V / 690 V is suitable for customers who need technical advice, rapid delivery follow-up and consistent support in drive design. For production lines, power units and technological units with high load, the H17RL Compact PRO represents a solution that combines robust construction, precise manufacturing discipline and clear serviceability. Send us an enquiry if you need to verify the suitability of the connection, mounting design or operating mode for a specific application.