Three-phase electric motor: H17R-450-2 900KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 450-2 |
| Rated power (kW) | 900 |
| Frame size (mm) | 450 |
| Number of poles | 2 |
| Rated speed (rpm) | 2988 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 100,4 |
| Efficiency at 100% load (%) | 96,3 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2877 |
| Locked-rotor torque ratio (LRT/RLT) | 0,71 |
| Breakdown torque ratio (BDT/RLT) | 3 |
| Locked-rotor current ratio (LRA/RLA) | 7 |
| Rotor moment of inertia (kg·m²) | 6,2 |
| 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 | 4800 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Li based, no.2 class |
H17R-450-B-2-6 delivers high power density for drives that must operate steadily even under long-term load. This 2900 rpm electric motor with an output of 900 kW is designed to provide reserve for starting, steady-state running and repeated load in industrial operation without unnecessary shutdowns. In practice, this is a solution for equipment where production continuity, service availability and the ability to transfer power into applications with high reliability requirements are decisive.
For large process systems, a compact 6000 V electric motor is important because it allows full output to be used even where space, power supply and installation interfaces must be addressed precisely. This design reflects experience with HV electric motors as well as the requirements for a 2-pole electric motor that operates at high speed without losing operating reliability. A shaft height of 450 mm supports integration into existing frames and simplifies drive design in projects where every centimetre matters.
2900 rpm electric motor for continuous operation of production lines
This rotational speed suits applications requiring direct power transfer to pumps, compressors and process units. Thanks to the H17R Compact PRO-HV design, the motor can stably meet the requirements of long-term operation in metallurgy, chemical processing and the energy sector. From the operator’s perspective, ease of connection to the drive is also important because industrial lines often operate in a regime where any shutdown immediately translates into costs.
Copper rotor for long service life in heavy industry
The copper rotor alloy helps limit losses and improves thermal resistance during repeated starts. This is advantageous where the motor faces load fluctuations, dust, temperature changes or long running periods at higher output. Combined with efficiency of 96,3 % and a power factor of 0,9, this design helps keep operation more economical even where every kilowatt-hour affects the cost of the entire line.
- Rated current of 100,4 A supports power-supply design during project stages.
- Rated speed of 2988 rpm corresponds to fast technological drives.
- Rated torque of 2877 Nm provides confident starting and operation under load.
- A weight of 4800 kg gives the design stability in fixed installation.
- Rotor moment of inertia of 6,200 kg·m² helps when working with dynamic changes.
Voltage selection for flexible HV electric motors
The option to adapt the voltage level helps in modernisation projects as well as new projects where integration is designed according to existing infrastructure. For operators, the 6000 V electric motor means fewer modifications to switchboards and better coordination with transformation within the plant. Solutions are available for 3 300 V, 6 000 V, 10 000 V and 11 000 V, allowing the drive design to be adapted to the specific network and technology requirements.
Winding and bearing protection for longer service intervals
Available temperature sensing in both the winding and bearing shields supports real-time monitoring of operating conditions. The anti-condensation heater helps during shutdowns when the effect of moisture on the insulation must be limited. In practice, this is appreciated by operations with irregular regimes where the motor frequently switches between load and standby states.
Typical applications include compressor stations, centrifugal cooling-water pumps, fans for furnace extraction systems, mixers in the chemical industry, ore conveyor belts, mills for crushing raw materials, rolling stands, vacuum pumps, blowers for combustion processes, geared press drives, mixing vessels in cement production, gas-cleaning equipment and main process units in refineries. In each of these cases, a stable three-phase electric motor that can handle long-term load while remaining easy to integrate into plant maintenance is decisive.
VYBO Electric is among the largest companies in its sector in Central Europe and bases this position on long-term deliveries for large industrial systems. For projects involving drive modernisation, replacement of an older machine or a new HV connection, this motor is prepared to meet the requirements for technical discipline and operating availability. H17R-450-B-2-6 is therefore a solution for plants that need reliable output in a compact design with an emphasis on long operation without unnecessary downtime.
Where a compact 6 kV motor simplifies integration
In energy, metallurgy, water management and raw-material processing, space, service access and compatibility with the existing power supply often need to be addressed. This is where the advantage of the H17R Compact PRO-HV design becomes evident, combining high output with sensible installation requirements. If you need to discuss a suitable connection, service scope or a replacement design for an existing drive, contact us.

