Three-phase electric motor: H17R-450-8 630KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 450-8 |
| Rated power (kW) | 630 |
| Frame size (mm) | 450 |
| Number of poles | 8 |
| Rated speed (rpm) | 744 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 77,5 |
| Efficiency at 100% load (%) | 95,8 |
| Power factor at 100% load | 0,82 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 8087 |
| Locked-rotor torque ratio (LRT/RLT) | 1,1 |
| Breakdown torque ratio (BDT/RLT) | 2,1 |
| Locked-rotor current ratio (LRA/RLA) | 5,2 |
| Rotor moment of inertia (kg·m²) | 23 |
| Accessories | |
| 6 x PT100 in winding | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Anti-condensation heater 230 V | |
| 3 x PTC thermistor | |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3 (other designs on request) |
| Duty type | S1 |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper bar |
| Terminal box type | VYBO CB1-HV |
| Operating conditions | |
| Ambient temperature range (°C) | -20 to +40 (-30, +50, +60 optional) |
| Maximum installation altitude | up to 1000 m |
| Weight and surface finish | |
| Approximate weight | 5500 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6328-C3/6328-C3 |
| Lubricant | Li based, no.2 class |
The H17R 450-C-8-6 design is prepared for drives where 630 kW is expected to provide long-term energy efficiency, stable torque and precise integration with the technological system. In practice, this is a solution for a 750 rpm electric motor in applications where low losses, reliable starting and a controlled thermal regime are important. For operators of large factories and OEM manufacturers of large equipment, it is essential that VYBO Electric builds these motors for conditions where line availability and long-term energy consumption are decisive.
IE4 Super Premium efficiency brings noticeably lower energy losses in demanding industrial drives, resulting in more stable operation and better use of every kilowatt-hour. This high-voltage electric motor is suitable where an exact balance between performance, thermal reserve and long-term service life of class F insulation is required. Temperature rise in class B supports durability under loads typical of heavy-duty operations with high duty cycles.
750 rpm electric motor for stable operation of production technologies
Rated speed of 744 rpm corresponds to operations requiring balanced power transmission without unnecessary dynamic fluctuations. For technological systems such as mills, crushers or pumping stations, rated torque of 8087 Nm is also important, helping during starting under load and maintaining steady traction at a demanding operating point. Thanks to copper strip in the rotor cage, current conduction in the rotor system is supported and rotor dynamics remain suitable for large industrial units.
- The 450 mm frame size facilitates integration into the drive structure without unnecessarily increasing the footprint.
- A compact 6 kV motor helps maintain full output even in frames where disciplined installation dimensions are required.
- Voltage selection simplifies the design of new projects for networks of 3 300 V, 6 000 V, 10 000 V and 11 000 V.
- A power factor of 0,82 supports power supply design in industrial distribution systems with high installed output.
- A rotor moment of inertia of 23,0 kg·m² helps when assessing starts and stops of technological systems.
6000 V electric motor for HV drive engineering
In the field of HV electric motors, not only output itself is often considered, but also installation compatibility, service accessibility and the method of cooling during long production shifts. This 6000 V electric motor is therefore suitable for circulation pumps, compressed-air compressor systems, extraction-line fans, raw-material processing mills, stone crushers, mixers in chemical production, high-resistance conveyors, rolling stations, dewatering pumps in mining operations and drum mixing units.
Rated current of 77,5 A and efficiency of 95,8 % are parameters that matter when designing switchboards, protective devices and the energy balance of the entire operation. 6328-C3 bearings on both the DE and NDE sides support operation where a long service interval and controlled mounting of the rotating assembly are expected. Available PT100 sensors in the winding and at bearing points, together with an anti-condensation heater and PTC thermistors, give the service team a better overview of the motor condition during shutdowns and starts.
Structural performance and weight for robust installation in the line
A weight of 5500 kg helps damp vibrations and supports installation stability in technological systems where high mechanical loads are expected. For OEM designs, spatial coordination is also important, as the 450 mm frame size simplifies alignment with gearboxes, couplings and base frames. The 750 rpm electric motor in this design therefore fits applications requiring precise support for long-term operation without frequent maintenance interventions.
Operational reliability in demanding applications
VYBO Electric is the largest company in its sector in Central Europe, which in practice translates into experience with deliveries for major industrial projects and consistent technical support. Drive design therefore takes into account that the motor may be part of systems with high availability requirements, where not only output but also starting behavior, starting torque and thermal reserve are monitored. A starting torque ratio of 1,1 %, breakdown torque ratio of 2,1 % and starting current ratio of 5,2 % provide the designer with data for more precise protection and switching settings.
For modern operations, service monitoring of bearing condition, winding and temperature deviations is also important, especially for units operating continuously. If an electric drive must be prepared for long-term operation in a heavily loaded system, this model provides a solution that respects the needs of energy-intensive lines as well as integration into existing infrastructure.
If you need a drive solution with an emphasis on efficiency, predictable servicing and project compatibility, order the H17R 450-C-8-6 as soon as possible. Customer projects in this class are planned well in advance, and the availability of a suitable motor determines the schedule of the entire technology.