Three-phase electric motor: H17R-355-6 355KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 355-6 |
| Rated power (kW) | 355 |
| Frame size (mm) | 355 |
| Number of poles | 6 |
| Rated speed (rpm) | 990 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 42,3 |
| Efficiency at 100% load (%) | 95,5 |
| Power factor at 100% load | 0,85 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3424 |
| Locked-rotor torque ratio (LRT/RLT) | 1,2 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 5,8 |
| Rotor moment of inertia (kg·m²) | 10,4 |
| 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 | 3530 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Li based, no.2 class |
1000 rpm electric motor for heavy industrial drives
In cement plants, pumping stations, compressor units and metallurgical lines, drive operation determines the smooth running of the entire production process. H17R 355-D-6-6 from VYBO Electric is designed for operations that require energy efficiency without unnecessary losses under continuous load. This 1000 rpm electric motor with an output of 355 kW helps maintain process stability where long-term reliability translates into less downtime and better utilization of installed capacity.
The main benefit is IE4 Super Premium efficiency, which is suitable for demanding 6 kV industrial drives. In practice, this means lower thermal loading, better energy management and calmer operation during long production cycles. For operators of large factories, it is important that efficiency remains beneficial even under continuous load, where differences in energy bills accumulate throughout the season.
Compact 6000 V electric motor with room for power
The design is based on a 355 mm frame size, allowing the motor to perform well even in equipment with limited installation space. In this segment, the challenge is often how to fit full output into the machine without unnecessarily increasing dimensions, and this is precisely where a compact 6 kV motor within the H315 to H560 range is suitable. For OEM manufacturers of large technological units, it provides a practical basis when designing enclosed assemblies, pumping units or custom drive modules.
The six-pole electric motor with a rated speed of 990 rpm is suitable for applications requiring an even profile and controlled starting dynamics. Rated torque of 3424 Nm supports loads commonly encountered in industry with dense media, large fans or heavy conveyor systems. Rated current of 42,3 A and power factor of 0,85 also assist in power-supply design and protection sizing in the switchgear.
Design for long operation without unnecessary downtime
Insulation class F and temperature rise B create the conditions for long-term stable work under demanding operating conditions. Copper strip in the rotor cage supports robust behaviour during starts and variable load. 6322-C3 bearings on both the DE and NDE sides are selected with industrial use in mind, where not only output but also service intervals are monitored.
In environments with dust, humidity or fluctuating temperatures, special protection for demanding environments is useful and is available at IP56, IP65, IP66 and IP67 levels. Such a design helps maintain reliability, for example, in milling operations, outdoor technological blocks or lines with frequent washing. A weight of 3530 kg and rotor moment of inertia of 10,4 kg·m² indicate that this is a drive intended for massive machines with a consistent operating regime.
Use in technologies designed for continuous operation
- Main cooling-water pumps in power-generation units.
- Fans for separation and filtration lines in cement plants.
- Compressors for industrial compressed-air distribution systems.
- Mills for processing mineral raw materials in mining production.
- Extruders and mixing units in chemical processing.
- Conveyor and crushing systems in metallurgical operations.
Monitoring and service under production control
For technical departments, it is important to know that available temperature sensing and additional protection simplify monitoring of drive condition in real operation. This model can be suitably integrated into systems that monitor both the winding and bearing points, helping plan interventions according to condition rather than estimates. VYBO Electric builds on years of experience manufacturing motors for industrial applications, which is evident in the technical solution and in how the motor behaves during long-term use.
For operations focused on both energy and durability
A 1000 rpm electric motor in this power class is a solution for projects where production continuity, service life and easier integration into existing technology are monitored. Thanks to a balanced ratio between efficiency, dimensions and mechanical reserve, it is suitable for modernizations as well as new lines. During long production cycles, every kilowatt-hour saved over the course of the year makes a difference.
If you are looking for a drive for a large technological unit, order H17R 355-D-6-6 in good time and secure a solution for demanding operation before the delivery date becomes a limitation.
