Three-phase electric motor: H17R-500-8 1120KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 500-8 |
| Rated power (kW) | 1120 |
| Frame size (mm) | 500 |
| Number of poles | 8 |
| Rated speed (rpm) | 748 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 135,4 |
| Efficiency at 100% load (%) | 96,2 |
| Power factor at 100% load | 0,83 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 14299 |
| Locked-rotor torque ratio (LRT/RLT) | 1,0 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 5,2 |
| Rotor moment of inertia (kg·m²) | 51 |
| 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 | 7320 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | on request/on request |
| Lubricant | on request |
The H17R Compact PRO-HV series design is based on compact performance that translates into reliable operation under high loads in industrial applications. The H17R 500-D-8-6 model with an output of 1120 kW is designed as a 700 rpm electric motor for equipment where torque stability, smooth starting and long-term operation without unnecessary shutdowns are decisive. In large factories and energy systems, this provides a solution that respects both performance requirements and the space limitations of the drive assembly.
The copper rotor reduces electrical losses and better withstands thermal stress during repeated cycling. In practice, this means less rotor overheating, more stable behavior at higher power draw and longer service life in applications where the motor is exposed to continuous load. For the operator, it is important that such a design supports the reliability of the entire drive even during harder starts and long daily use.
IE4 Super Premium efficiency is also applied in the design for demanding industrial drives. High efficiency helps reduce operating losses and improves economy where every percentage point translates into long-term costs. This high-voltage electric motor therefore fits into lines where energy balance, thermal conditions and machine availability are monitored throughout the entire shift.
700 rpm electric motor for stable operation of large drives
Rated speed of 748 rpm provides a suitable basis for applications requiring uniform energy transmission and sensitive load control. An eight-pole electric motor of this type is suitable where the drive must operate without sudden dynamic changes and where controlled acceleration is preferred over aggressive characteristics. In the design of large technological systems, this creates room for more precise fine-tuning of pumps, compressors and conveyor systems.
Copper rotor and long service life in continuous operation
At the core of the design is a copper rotor cage that supports low losses and better heat dissipation from the rotor section. For heavy industry, it is important that such a rotor helps maintain parameters even during long operating intervals when the motor often runs close to rated load. Combined with insulation class F and temperature rise B, this creates a design suitable for processes with continuous thermal and mechanical stress.
To monitor temperature conditions, 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and 3xPTC thermistor can be used. Such a solution helps operators detect deviations early, before they result in unplanned downtime. For large plants, this type of monitoring is particularly important in operations where the service window is limited.
500 mm frame size for robust integration into technological systems
A 500 mm frame size provides a solid basis for installation in larger drive assemblies and helps maintain mechanical rigidity at the higher torque of 14299 Nm. Rated current of 135,4 A and power factor of 0,83 create an operating profile suitable for designing switchboards, cable routes and protective devices in industrial installations. A rotor moment of inertia of 51,0 kg·m² also supports more stable operation in applications with high loads.
Frequency selection option for global industrial projects
Flexibility in frequency configuration facilitates deployment in plants operating with different network standards or requiring a solution for export projects. Availability for 60 Hz expands usability for deliveries to North American technologies and modernization of equipment with a different supply regime. In practice, this shortens motor integration time into the existing technological block and simplifies coordination with frequency converters, starters and downstream mechanisms.
For the operator of a large company, confidence in the production and documentation background is also important, which VYBO Electric supports with ISO certificates. Such an approach helps standardize purchasing, service records and internal quality audits.
Industrial applications for heavy industry and the energy sector
This design is suitable for demanding operations where long-term loading and precisely controlled performance are required.
- Main drive of a high-pressure pump in a petrochemical facility.
- Drive of an axial fan in a power plant cooling tower.
- Drive of a compressor in an industrial gas production plant.
- Main motor of a crusher in a cement production line.
- Drive of rolling equipment in a metallurgical operation.
- Drive of an agitator in a high-capacity chemical reactor unit.
- Drive of an ore conveyor in a mining facility.
- Drive of a centrifugal pump in a water treatment system.
- Drive of a mulching or crushing unit in biomass technology.
- Drive of a process fan in a paper production plant.
In extensive technological systems, H17R Compact PRO-HV delivers a combination of compact performance, economical operation and durable mechanics. For projects where reliability, energy balance and predictable servicing are decisive, take advantage of the offer and design a solution with long-term operating benefits.

