Three-phase electric motor: H27R-4501-4 900KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4501-4 |
| Rated power (kW) | 900 |
| Frame size (mm) | 450 |
| Number of poles | 4 |
| Rated speed (rpm) | 1490 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 102,1 |
| Efficiency at 100% load (%) | 95,7 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 5768 |
| Locked-rotor torque ratio (LRT/RLT) | 0,70 |
| Breakdown torque ratio (BDT/RLT) | 2,0 |
| Locked-rotor current ratio (LRA/RLA) | 5,5 |
| Rotor moment of inertia (kg·m²) | 21 |
| Load moment of inertia (kg·m²) | 402 |
| 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 | 4400 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) |
In metallurgy, cement lines, pumping stations and power generation, stable torque and low operating losses are decisive. H27R 4501-4-6 is a 1500 rpm electric motor with an output of 900 kW designed for large drives with an emphasis on energy efficiency and long-term loading in continuous operation. High rated torque of 5768 Nm, rated current of 102,1 A and a power factor of 0,89 provide the technical basis for efficient power transmission in demanding applications.
IC611 cooling keeps clean air in a closed circuit
The closed cooling system with an IC611 air-to-air heat exchanger helps separate the motor interior from the surrounding environment, which is practical in dusty operations and corrosive atmospheres. At the same time, it supports IE4 Super Premium efficiency, so energy losses fall under high loading and the drive maintains better economy during long production cycles. For the operator, this means a more stable thermal balance, lower service requirements and better utilisation of installed power.
Design suitable for long production runs
The stator winding is impregnated using VPI technology, which increases resistance to moisture, dust and vibration. Insulation class F together with temperature rise B provides reserve for demanding loading, while the NU228-C3+6030-C3 bearing arrangement on the DE side and NU228-C3 on the NDE side supports reliable rotor mounting. Rotor inertia of 21,0 kg·m² and load inertia of 402,0 kg·m² are suitable for applications with high kinetic demands where precise design work with drive starting and protection is important.
Designed for heavy industrial applications
This four-pole electric motor is used wherever the drive must operate for long periods, reliably and with reserve for process load changes. Starting parameters help when sizing the power supply and protection because starting torque reaches 0,7 times the rated torque, breakdown torque 2 times the rated torque and starting current 5,5 times the rated current. For the designer, this simplifies selection of protective components and assessment of torque reserve with higher-inertia loads.
- Pumps for transfer of water and process media in power generation.
- Fan units for extraction and cooling of production halls.
- Crushers and grinding lines in the cement and mining industries.
- Compressor stations with continuous operation and high consumption.
- Drives for rolling or conveyor lines in metallurgy.
- Process agitators and homogenisation units in chemical production.
Parameters that support power-supply design
The motor is intended for a 6000 V network and, at a rated speed of 1490 rpm, falls within the 1400-1500 rpm range, which is suitable for stable industrial transmissions requiring a precise operating point. A package weight of 4400 kg must be considered in logistics, installation and handling at the plant, especially when positioning it in enclosed machine rooms or on foundation frames with limited access. Thanks to the combination of output, efficiency of 95,7 % and robust construction, this is a solution for operations focused on long-term drive economy.
A solution for modernisations and new installations
If you need a drive for a large technological system, H27R 4501-4-6 provides parameters suitable for new projects and replacements of older motors in extensive operations. Precise project documentation, VYBO Electric service support and a design focused on reliable operation simplify integration into existing technological systems. Order this high-voltage drive in good time so that you can plan installation, electrical work and commissioning without unnecessary delay.