Three-phase electric motor: H17R-450-4 1120KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 450-4 |
| Rated power (kW) | 1120 |
| Frame size (mm) | 450 |
| Number of poles | 4 |
| Rated speed (rpm) | 1491 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 124,7 |
| Efficiency at 100% load (%) | 96,3 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 7174 |
| Locked-rotor torque ratio (LRT/RLT) | 0,79 |
| Breakdown torque ratio (BDT/RLT) | 2,5 |
| Locked-rotor current ratio (LRA/RLA) | 6,5 |
| Rotor moment of inertia (kg·m²) | 18 |
| 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 | 5700 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6328-C3/6328-C3 |
| Lubricant | Li based, no.2 class |
In metallurgical lines, pumping stations and power-generation units, drive stability depends mainly on how the motor behaves under prolonged load. The H17R-450-D-4-6 model with an output of 1120 kW is designed for operations where a 1500 rpm electric motor must maintain the working rhythm without unnecessary fluctuations while also helping reduce electrical energy consumption. In this class, energy efficiency translates directly into operating costs and lower loading of the entire technology.
H17R Compact PRO-HV is designed as a high-voltage electric motor for industrial use with an emphasis on economical operation. The IE4 Super Premium class is suitable wherever high efficiency makes sense during long operating hours and cycles that cannot tolerate downtime. The 450 mm frame enables efficient use of space, while the design meets the requirements for a compact 6 kV motor in a range where full output is expected without unnecessarily increasing the installation footprint.
Advanced temperature monitoring supports reliable supervision of both the winding and bearings under real operating conditions. In practice, this simplifies maintenance planning because operators receive an early indication of changing temperature conditions before a problem affects machine performance. For demanding lines, the 4-pole electric motor is also important, offering a balanced compromise between speed and torque under continuous load.
1500 rpm electric motor for stable operation of heavy-duty drives
The rated speed of 1491 rpm is suitable for drives requiring smooth transmission of force into the technology and controlled behaviour during starting. Torque of 7174 Nm gives the machine reserve capacity for starting conveyors, agitators and compressor units. With a rated current of 124,7 A, the drive can be integrated into electrical distribution systems with clearly planned sizing and peak-load control.
IE4 efficiency in operation with an emphasis on energy savings
Efficiency of 96,3 % and a power factor of 0,9 are important in every installation where the motor runs for a large part of the day and every kilowatt-hour affects the manufacturing plant’s budget. This 6000 V electric motor is therefore suitable for environments where long-term operating economics are monitored and where consistent output without excessive losses is expected from the equipment. Insulation class F together with temperature rise B create the conditions for long service in demanding temperature conditions.
Design that simplifies maintenance in continuous operations
Copper strip in the rotor cage supports firm starting and durability under repeated load. 6328-C3 bearings on both the DE and NDE sides help maintain operation in line with the requirements of large factories, where vibration, temperature and service intervals are monitored. A weight of 5700 kg and rotor moment of inertia of 18,0 kg·m² are values relevant to the design of foundations, couplings and protective elements for the entire drive.
Use in large factories and power-generation units
This model is suitable for main raw-water pumps, main boiler-house fans, process compressors, turbo fans, sludge-tank agitators, extruders, rolling mills, ore crushers, ore belt conveyors, drum mills, desulphurization pumps, mill separators, granulation lines, agitator drives in chemical production and large cooling-tower fans. In these applications, it is particularly useful during long cycles where reliability, service predictability and precise load control are important.
VYBO Electric as a reliable source for industrial motors
VYBO Electric provides supplies for operators who need verified origin, technical continuity and support in drive design. Temperature monitoring through 6 x PT100 in the winding, 1 x PT100 in the NDE bearing, 1 x PT100 in the DE bearing, an anti-condensation heater and 3 x PTC thermistor is also available, simplifying integration into a modern maintenance system. If you are planning a refurbishment or capacity expansion, order the solution in good time to take advantage of fast dispatch and minimize technology downtime.