Three-phase electric motor: H27R-4504-6 1000KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4504-6 |
| Rated power (kW) | 1000 |
| Frame size (mm) | 450 |
| Number of poles | 6 |
| Rated speed (rpm) | 992 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 115,7 |
| Efficiency at 100% load (%) | 95,3 |
| Power factor at 100% load | 0,87 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 9627 |
| Locked-rotor torque ratio (LRT/RLT) | 1,10 |
| Breakdown torque ratio (BDT/RLT) | 2,1 |
| Locked-rotor current ratio (LRA/RLA) | 6 |
| Rotor moment of inertia (kg·m²) | 48 |
| Load moment of inertia (kg·m²) | 1390 |
| Accessories | |
| 6 x PT100 in windings | |
| 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 (S2, S3, S4 – S9 optional) |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC611 (On request IC616, IC666) |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper rotor bars |
| 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 | 4810 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | NU228-C3+6030-C3/NU228-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The design of the H27R 4504-6-6 model is intended for operations requiring stable output, long-term reliability and lower energy costs without unnecessary compromises. This 900 rpm electric motor in the HV electric motor category delivers an output of 1000 kW at a rated speed of 992 rpm and, with correct drive sizing, supports economical continuous operation in power-intensive lines.
In the H27R-HD-Modular series, VYBO Electric uses a solution that combines high efficiency with robust mechanical stability. H27R 4504-6-6 reaches an efficiency of 95,3 % and a power factor of 0,87, so during long operating cycles it limits losses in both the network and the motor itself. IE4 Super Premium efficiency is therefore suitable for plants that monitor energy costs in real time and require consistent output under high loads. The welded steel frame increases structural rigidity while reducing weight compared with cast-iron solutions and facilitating transport and installation into technological units.
Energy savings under high load with a 900 rpm electric motor
During continuous operation, it is essential that the motor does not generate unnecessary heat and that the drive remains stable even with variable mechanical energy demand. H27R 4504-6-6 uses a six-pole arrangement suitable for processes with higher inertia and a requirement for smooth operation within the output range of large industrial applications. Rated current of 115,7 A and rated torque of 9627 Nm give designers sufficient scope when designing the power supply, starting system and protection components.
When designing starting, the starting torque is also important, reaching 1,1 times the rated torque, breakdown torque 2,1 times the rated torque and starting current 6 times the rated current. Such characteristics are practical when sizing power switchboards, soft starters, transformers and overcurrent protection in systems with a high load inertia of 1390,0 kg·m². Rotor inertia of 48,0 kg·m² helps provide predictable dynamic behavior of the entire drive.
Winding stability and temperature monitoring
Thermal discipline is also important in operations with long technological cycles. H27R-HD-Modular motors are prepared as standard for monitoring of both the winding and bearings, with the design providing for PT100 temperature sensing, PTC thermistors and heating to suppress condensation. Insulation class F together with temperature rise class B provides reserve for demanding conditions where long-term operation without unplanned shutdowns is required.
This equipment is particularly important for a three-phase electric motor in an environment where load, temperature and operating modes change. Consistent thermal protection supports winding protection, reduces the risk of degradation of insulation systems and increases reliability when integrating into the plant’s central control systems. In practice, this means better equipment availability and more predictable service intervals.
Use in technological units with high torque
H27R 4504-6-6 is used where high output, reliable starting and consistent operation in demanding industrial environments are required. This six-pole electric motor is suitable for drives with heavier rotating parts, lines with high inertia and equipment that is frequently started in controlled technological sequences.
- Main blowers in power generation and district heating.
- Main compressor stations in heavy industry.
- Rolling lines in metallurgical operations.
- Crushing units in cement plants.
- Mills for raw-material processing.
- Pumps for large water-supply and drainage systems.
- Ventilation units in mining environments.
- Extruders in polymer processing.
- Mixers and agitators in the chemical industry.
- High-load transport belts in logistics hubs.
- Centrifuges in the process industry.
- Granulation lines for material processing.
- Drive units for generator sets in industrial units.
Bearings and mechanical mounting for long service life
The mechanical section is sized with emphasis on mounting stability and operating precision. DE bearing NU228-C3+6030-C3 and NDE bearing NU228-C3 support smooth operation at high output and are suitable for applications where vibration, service life and repeatability of operating parameters are monitored. Package weight of 4810 kg reflects the robust nature of the machine intended for large technological units.
When designing the electrical systems of large units, it is also appreciated that such a motor fits the concept of drives supplied from the medium-voltage level of 6000 V. From the perspective of system integration, not only efficiency but also compatibility with protection, measurement and operating diagnostics is important, allowing better planning of shutdowns and service interventions.
For projects emphasizing reliable operation, contact us
If you need to verify the suitability of the H27R 4504-6-6 model for your technology, prepare the power supply, assess torque reserve or design integration into an existing line, contact us.
